Electrosurgical pencil with improved controls
34 claims: 23 independent, 11 dependent
- 1電気外科用ペンシルであって 、 細長ハウジング と、 該ハウジング内に支持され 、該 ハウジングから遠位方向に延び てい る電気焼灼器電極であって、 該電気焼灼器電極は、 電気外科エネルギーの供給源に接続されている 、 電気焼灼器電極 と、 該ハウジング上に支持された複数の作動スイッチであって、各作動スイッチ は、 その作動の際に、該電気外科用エネルギーの供給源から延び てい る制御ループを選択的に完成する ように構成され、 かつ 、 適合されている、複数の作動スイッチ と、 該ハウジング上に支持された少なくとも1つの電圧分割器ネットワークであって、 該少なくとも1つの電圧分割器ネットワークは、 該電気外科用ペンシル の該複数の作動スイッチ に送達される電気外科エネルギーの強度を制御するために、 該電気外科用エネルギー供給源に電気的に接続され、かつ、強度制御器スライドと電気的に通信する、 少なくとも1つの電圧分割器ネットワーク と を備 え、 該少なくとも1つの電圧分割器ネットワークは、強度レベルを格納するようにプログラムされたアルゴリズムを含み、該強度レベルは、該強度制御器スライドによって設定され、該複数の作動スイッチの各作動スイッチによって利用される、 電気外科用ペンシル。
- 2前記少なくとも1つの電圧分割器ネットワーク は、複数の制御ワイヤをさらに備え、該複数の制御ワイヤは、それぞれ の作動スイッチを前記電気外科用エネルギーの供給源に電気的に相互接続 し、 各制御ワイヤ は、 前記電気外科用ペンシル内で、前記電気焼灼器電極に電気外科エネルギーを送達する制御ワイヤから絶縁されている、請求項1に記載の電気外科用ペンシル。
- 3前記 強度制御器スライドは、 前記ハウジング に動作可能に関連付けられている、 請求項2に記載の電気外科用ペンシル。
- 4前記複数の作動スイッチ は、 前記ハウジング内に配置された第1のレジスターネットワークを規定し 、前記強度制御器 スライド は、 該ハウジング内に配置された第2のレジスターネットワークを規定する、請求項3に記載の電気外科用ペンシル。
- 5前記 強度制御器 スライド は、 前記複数の作動スイッチに送達される電気外科用エネルギーの強度を同時に制御する、請求項4に記載の電気外科用ペンシル。
- 6少なくとも1つの作動スイッチ は、 所望の手術目的を達成するために 、 波形デューティサイクルを制御するよう に構成され、 かつ 、 適合されている、請求項5に記載の電気外科用ペンシル。
- 7前記ハウジング上に支持された3モード作動スイッチをさらに含む、請求項6に記載の電気外科用ペンシル。
- 8各モード作動スイッチ は、前記電気外科用エネルギーの供給源に特徴的な信号を送達し、 次に、 該電気外科用エネルギーの供給源は、 対応する波形デューティサイクルを前記電気焼灼器電極に伝達する 、 請求項7に記載の電気外科用ペンシル。
- 9第1の活性化スイッチ は、前記電気外科用エネルギーの供給源に第1の特徴的な信号を送達し、 次に、 該電気外科用エネルギーの供給源は、 切断効果を生成する波形デューティサイクル を伝達し、 第2の作動スイッチ は、該電気外科用エネルギーの供給源に第2の特徴的な信号を送達し、 次に、 該電気外科用エネルギーの供給源は、 融合効果を生成する波形デューティサイクル を伝達し、第 3の作動スイッチ は、該電気外科用エネルギーの供給源に第3の特徴的な信号を送達し、 次に、 該電気外科用エネルギーの供給源は、 凝固効果を生成する波形デューティサイクル を伝 達する 、 請求項 8 に記載の電気外科用ペンシル。
- 10前記 強度制御器 スライド上 の 各位置 は、前記電気外科用エネルギーの供給源に特徴的な信号を送達し、 次いで、 該電気外科用エネルギーの供給源は、 特定の作動スイッチに対応する 前記 波形デューティサイクルの強度を調節する 、 請求項 9 に記載の電気外科用ペンシル。
- 11前記 強度制御器 スライド は、 複数の強度設定を有する、請求項 10 に記載の電気外科用ペンシル。
- 12前記 強度制御器 スライド は、 2kΩで、約60mAの最小から約240mAの最大まで電流強度を 変える よう に構成され、 かつ 、 適合されている、請求項 11 に記載の電気外科用ペンシル。
- 13前記 強度制御器 スライド は、 2kΩで、約100mAの最小から約200mAの最大まで電流強度を 変える よう に構成され、 かつ 、 適合されている、請求項 11 に記載の電気外科用ペンシル。
- 14前記 強度制御器 スライド は、 前記電位差計が第1の位置に配置され た場合、 最小にセットされ 、該 電位差計が第2の位置に配置され た場合、 最大にセットされる、請求項 13 に記載の電気外科用ペンシル。
- 15前記少なくとも1つの電圧分割器ネットワーク は、 前記ハウジング上に回転可能に支持され てい る、請求項1に記載の電気外科用ペンシル。
- 16前記電気焼灼器電極 は、 刃、ニードル、ループおよびボールの うちの 1つである、請求項 14 に記載の電気外科用ペンシル。
- 17前記スライド電位差計 は、 該電位差計が前記電気外科用ペンシルのいず れの 側から も動作 可能であるように、前記複数の作動スイッチのいず れの 側に も 各 一個、 スライド可能に支持され てい る一対のナブを含む、請求項 14 に記載の電気外科用ペンシル。
- 18前記ハウジング は、 その外側面に形成された凹部を含み、 前記複数の作動スイッチおよび 前記電圧分割器ネットワーク のナブは、 該凹部内に配置され てい る、請求項 17 に記載の電気外科用ペンシル。
- 19前記ハウジング上に 動作 可能に支持された成型ハンドグリップをさらに含む、請求項6に記載の電気外科用ペンシル。
- 20前記ハンドグリップ は、 使用者の手の疲労を減少 させ る形状および寸法 を有している、 請求項 19 に記載の電気外科用ペンシル。
- 21前記ハンドグリップ は、 前記 強度制御器 スライドを変化させ る間、 前記ペンシルの動きを防ぐ牽引を提供する、請求項 19 に記載の電気外科用ペンシル。
- 22前記電気外科用ペンシル は、 前記ハウジング上に支持され てい る3モード作動スイッチを含み、該3モード作動スイッチの各々 は 、電気外科用エネルギーの供給源に特徴的な信号を送達する ように構成され、 かつ 、 適合され、該電気外科用エネルギーの供給源 は 、次に、エンドエフェクタに、対応する波形デューティサイクルを伝達する、請求項5に記載の電気外科用ペンシル。
- 23第1のモード作動スイッチ は、 解剖効果を生成する波形デューティサイクルを作動し、第2のモード作動スイッチ は、 解剖および止血効果を生成する波形デューティサイクルを作動し 、第 3のモード作動スイッチ は、 止血効果を生成する波形デューティサイクルを作動する、請求項 22 に記載の電気外科用ペンシル。
- 24前記少なくとも1つの電圧分割器ネットワーク は、 前記ハウジング上に、前記作動スイッチのいず れの 側に も各一個、 スライド可能に支持され てい る一対のナブを含む、請求項 23 に記載の電気外科用ペンシル。
- 25前記少なくとも1つの電圧分割器ネットワーク は、 最小強度に対応する第1の位置、最大強度に対応する第2の位置 、 および 、 該最小強度と最大強度との間の強度に対応する該第1の位置と第2の位置との間の複数の位置を有する、請求項 24 に記載の電気外科用ペンシル。
- 26前記少なくとも1つの電圧分割器ネットワーク は、 2kΩで、約60mAの最小から約240mAの最大まで電流強度を変 える よう に構成され、 かつ 、 適合されている、請求項 25 に記載の電気外科用ペンシル。
- 27前記少なくとも1つの電圧分割器ネットワーク は、 約100mAの最小から約200mAの最大まで電流強度を変 える よう に構成され、 かつ 、 適合されている、請求項 26 に記載の電気外科用ペンシル。
- 28前記少なくとも1つの電圧分割器ネットワーク は、 該少なくとも1つの電圧分割器ネットワークが最近位位置に配置され た場合、 最小にセットされ 、最 遠位位置に配置され た場合、 最大にセットされる、請求項 27 に記載の電気外科用ペンシル。
- 29前記少なくとも1つの電圧分割器ネットワーク は、 該少なくとも1つの電圧分割器ネットワークが最遠位位置に配置され た場合、 最小にセットされ 、最 近位位置に配置され た場合、 最大にセットされる、請求項 28 に記載の電気外科用ペンシル。
- 30前記少なくとも1つの電圧分割器ネットワーク は、 複数の離散強度設定を提供するよう に構成され、 かつ 、 適合されている、請求項 28 に記載の電気外科用ペンシル。
- 31前記少なくとも1つの電圧分割器ネットワーク は、 アナログ強度設定を提供するよう に構成され、 かつ 、 適合されている、請求項 27 に記載の電気外科用ペンシル。
- 32前記作動スイッチの波形デューティサイクル は、 前記少なくとも1つの電圧分割器ネットワークにより生成される強度における変化 によって 変動する、請求項 27 に記載の電気外科用ペンシル。
- 33前記 強度制御 器 スライド は、 各作動ボタンのために前記本体上に位置決めされ てい る、請求項1に記載の電気外科用ペンシル。
- 34各 強度制御器 スライド は、 電圧分割器ネットワークを 動作させ、 該電圧分割器ネットワーク は、 前記電気外科用エネルギーの供給源への別個の制御ワイヤ上に特徴的な信号を生成する、請求項 33 に記載の電気外科用ペンシル。
Independent claims34
70 paragraphs, as filed
This application claims benefits and priority to US Patent Application No. 10 / 959,824 (filed October 6, 2004, title of invention "ELECTRO SURGICAL PENCIL WITH IMPROVED CONTROLS").
(Technical field) The present disclosure relates generally to electrosurgical instruments, and more specifically to electrosurgical pencils having multiple variable controls accessible by hand.
(Background of related technology) Electrosurgical instruments have become widely used by surgeons in recent years. Therefore, there is a need for devices and instruments that are easy to handle, reliable, and safe in the surgical environment. In general, most electrosurgical instruments are hand-held instruments (eg, electrosurgical pencils). This electrosurgical pencil transfers radio frequency (RF) electrical energy or electrosurgical energy to a tissue site. This electrosurgical energy is returned to the electrosurgical source (ie, a unipolar system configuration) via a return electrode pad located underneath the patient, or can be positioned in contact with the body at the surgical site. Alternatively, it is returned to the electrosurgical source via a smaller return electrode that can be positioned immediately adjacent to the surgical site (ie, bipolar system configuration). The waveform generated by this RF source produces certain electrosurgical effects commonly known as electrosurgical cutting and electrosurgical discharge therapy.
Specifically, electrosurgical discharge therapy involves the application of electrical sparks to biological tissue (eg, tissue of human flesh or internal organs) without significant amputation. This spark is generated by a burst of radio frequency electrical energy or electrosurgical energy generated from a suitable electrosurgical generator. Coagulation is defined as the process of drying tissue, in which tissue cells rupture and become dehydrated / dried. On the other hand, electrosurgical cutting / dissection involves applying electrical sparks to tissue for the purpose of producing the effects of cutting, dissection and / or division. Fusion includes the function of cutting / dissection combined with the development of a hemostatic effect. Encapsulation / hemostasis, on the other hand, is defined as the process of liquefying collagen in tissue to form a fused mass of collagen.
As used herein, the term "electrosurgical pencil" refers to an instrument that is attached to an active electrode and has a handpiece that is used to cauterize, coagulate, and / or cut tissue. Intended to include. Typically, electrosurgical pencils can be activated by a hand switch or foot switch. An active electrode is a conductive element that is usually elongated and can be in the form of a thin flat blade with a pointed or rounded distal end. Alternatively, the active electrode may include a solid or hollow, elongated thin cylindrical needle with a flat, rounded, pointed, or tilted distal end. Typically, this type of electrode is known in the art as a "blade" -shaped, "loop" -shaped, or "snare" -shaped "needle" or "ball" electrode.
As mentioned above, the handpiece of the electrosurgical pencil is connected to a suitable electrosurgical energy source (ie, the generator), which provides the radio-frequency electrical energy required for the operation of the electrosurgical pencil. generate. Generally, when surgery is performed on a patient using an electrosurgical pencil, the electrical energy from the electrosurgical generator is conducted through the active electrodes to the tissue at the site of surgery and then through the patient. Is conducted to the return electrode. This return electrode is typically placed at a convenient location on the patient's body and is attached to the generator by a conductive material. Typically, the surgeon activates the controller of the electrosurgical pencil to select the mode / waveform to achieve the desired surgical effect. Typically, a "mode" is associated with various electrical waveforms (eg, cut waveforms have a tendency to cut tissue, coagulation waveforms have a tendency to coagulate tissue, and fusion waveforms have a tendency to coagulate tissue. , Tends to be somewhere between the cutting and solidifying waveforms). Power or energy parameters are typically controlled from outside the sterilization field, which requires an intermediary, such as a nurse moving around to make such adjustments.
A typical electrosurgical generator has a number of controllers for selecting electrosurgical output. For example, the surgeon may choose from a variety of surgical "modes" for treating tissue (cutting, fusion (fusion levels 1-3), low cutting, drying, discharge therapy, spraying, etc.). The surgeon also has the option of choosing a range of power settings (typically in the range 1-300 W). As can be understood, this gives the surgeon a great deal of variety when treating tissue. However, many such options also tend to complicate simple surgical procedures and can be confusing. In addition, surgeons typically follow preset control parameters and remain in known modes and power settings. Thus, surgeons can take advantage of the simple, ergonomically friendly controls that accompany the electrosurgical pencil to selectively control and easily select and adjust various modes and power settings. Is needed to do.
Existing electrosurgical instrument systems allow the surgeon to vary between two preconfigured settings (ie, coagulation and cutting) via two separate switches placed on the electrosurgical pencil itself. To enable. Other electrosurgical instrument systems allow the surgeon to increase the applied power by adjusting or closing the switch on the electrosurgical generator when the coagulation or disconnect switch of this instrument is pressed. To enable. The surgeon then needs to visually confirm the change in applied power by looking at the various displays and / or instruments on the electrosurgical generator. In other words, all of the adjustments and parameters for this electrosurgical instrument that are monitored during use of this electrosurgical instrument are typically located on the electrosurgical generator. Therefore, the surgeon must continue to visually monitor the electrosurgical generator during the surgical procedure.
<p> Therefore, there is a need for electrosurgical instruments that do not require the surgeon to continuously monitor the electrosurgical generator during the surgical procedure. In addition, there is a need for electrosurgical instruments in which the power output can be configured so that the surgeon can adjust his eyes without turning his eyes away from the surgical site and pointing at the electrosurgical generator.</p>
<p> The present invention provides: (Item 1) Electrosurgical pencil, below: Elongated housing; An electrocauter electrode that is supported within the housing and extends distally from the housing and is connected to a source of electrosurgical energy; A plurality of actuation switches supported on the housing, each of which, upon its actuation, selectively completes and is adapted to a control loop extending from the electrosurgical energy source. There are multiple activation switches; and At least one voltage divider network supported on the housing to control the intensity of electrosurgical energy delivered from the electrosurgical energy source to the plurality of actuation switches, and said. Electrically connected to the source of the electrosurgical energy to control the intensity of the electrosurgical energy delivered to the plurality of actuation switches returning from the electrocauter electrode and with the electrocauter electrode. Excessive electrosurgical surgery with at least one return control wire that electrically interconnects the electrosurgical energy source and from the return control wire or the electrocauter electrode to the electrosurgical energy source. An electrosurgical pencil with at least one voltage divider network that transfers electrical energy. (Item 2) The at least one voltage divider network further: Each control wire comprises a plurality of control wires that electrically interconnect individual actuation switches to the electrosurgical energy source, and each control wire transfers electrosurgical energy from the electrosurgical energy source to the electrocautery. The electrosurgical pencil according to item 1, which is delivered to the electrode. (Item 3) The electrosurgical pencil according to item 2, wherein the voltage divider network comprises a slide potentiometer associated with the housing and operability. (Item 4) Item 3. The plurality of actuating switches define a first register network arranged in the housing, and the slide potentiometer defines a second register network arranged in the housing. Electrosurgical pencil. (Item 5) The electrosurgical pencil according to item 4, wherein the slide potentiometer simultaneously controls the intensity of electrosurgical energy delivered to the plurality of actuation switches. (Item 6) The electrosurgical pencil according to item 5, wherein the voltage divider network comprises an algorithm that stores the final setting for each actuation switch. (Item 7) 6. The electrosurgical pencil according to item 6, wherein the voltage divider network comprises an algorithm that requires the slide potentiometer to be set to zero each time the operating mode of the electrosurgical pencil is changed. .. (Item 8) 7. The electrosurgical pencil according to item 7, wherein at least one actuation switch is in a form and adapted to control the corrugated duty cycle to achieve the desired surgical purpose. (Item 9) 8. The electrosurgical pencil according to item 8, further comprising a 3-mode actuation switch supported on the housing. (Item 10) 9. The electrosurgical pencil according to item 9, wherein each mode actuation switch then delivers a signal characteristic of the electrosurgical energy source that transmits the corresponding waveform duty cycle to the electrosurgical pencil. (Item 11) The first actuating switch then delivers the first characteristic signal that transmits the corrugated duty cycle producing the cutting effect to the electrosurgical energy source, and the second actuating switch then Deliver a second characteristic signal that transmits a waveform duty cycle that produces a fusion effect to the source of the electrosurgical energy, where a third actuating switch then produces a coagulation effect. 9. The electrosurgical pencil according to item 9, which delivers a third characteristic signal that transmits a corrugated duty cycle to the electrosurgical energy source. (Item 12) The pencil for electrosurgery according to item 11, wherein the voltage divider network is a potentiometer. (Item 13) The electrosurgery according to item 12, wherein the potentiometer is a rheostat having discrete values and in such a form as to adjust the intensity of the waveform duty cycle corresponding to a particular actuation switch. Pencil. (Item 14) The electrosurgical pencil according to item 13, wherein the potentiometer has a plurality of intensity settings. (Item 15) The electrosurgical pencil according to item 14, wherein the potentiometer has a form and is adapted to vary the current intensity from a minimum of about 60 mA to a maximum of about 240 mA at 2 kΩ. (Item 16) The electrosurgical pencil according to item 14, wherein the potentiometer is 2 kΩ and has a form and conformity such that the current intensity varies from a minimum of about 100 mA to a maximum of about 200 mA. (Item 17) The electrosurgical pencil according to item 16, wherein the potentiometer is slidably supported on the housing. (Item 18) 17. Electrosurgery, wherein the potentiometer is set to a minimum when the potentiometer is placed in the first position and is set to a maximum when the potentiometer is placed in the second position. Pencil for. (Item 19) The electrosurgical pencil according to item 18, wherein the potentiometer is in a form and adapted to provide a plurality of discrete intensity settings. (Item 20) The electrosurgical pencil according to item 1, wherein the at least one voltage divider network is rotatably supported on the housing. (Item 21) The electrosurgical pencil according to item 19, wherein the electrocautery electrode is one of a blade, a needle, a loop and a ball. (Item 22) A pair of slide potentiometers, one of which is slidably supported on either side of the plurality of actuation switches, such that the potentiometer can be actuated from any side of the electrosurgical pencil. The electrosurgical pencil according to item 19, including the nab of. (Item 23) 22. The electrosurgical pencil according to item 22, wherein the housing comprises a recess formed on its outer surface, and a plurality of actuation switches and nubs of the voltage divider network are located within the recess. (Item 24) 8. The electrosurgical pencil according to item 8, further comprising a molded handgrip operably supported on the housing. (Item 25) 24. The electrosurgical pencil according to item 24, wherein the hand grip has a shape and dimensions that reduce user hand fatigue. (Item 26) The electrosurgical pencil comprises a three-mode actuation switch supported on the housing, and each of the three-mode actuation switches delivers a signal characteristic of a source of electrosurgical energy. 7. The electrosurgical pencil according to item 7, wherein the source of the electrosurgical energy is adapted and then transmits the corresponding corrugated duty cycle to the end effector. (Item 27) The first mode activation switch activates the waveform duty cycle that produces the dissection effect, the second mode activation switch activates the waveform duty cycle that produces the dissection and hemostatic effect, and the third mode activation switch activates the waveform duty cycle. The electrosurgical pencil according to item 26, which operates a corrugated duty cycle that produces a hemostatic effect. (Item 28) 27. The electrosurgical pencil according to item 27, wherein the at least one voltage divider network comprises a pair of nubs on the housing, one on either side of the actuation switch, each slidably supported. (Item 29) The at least one voltage divider network corresponds to a first position corresponding to the minimum intensity, a second position corresponding to the maximum intensity, and the first position corresponding to the intensity between the minimum intensity and the maximum intensity. 28. The electrosurgical pencil according to item 28, which has a plurality of positions between and from a second position. (Item 30) 29. The electrosurgical pencil according to item 29, wherein the at least one voltage divider network is 2 kΩ, in a form such that the current intensity varies from a minimum of about 60 mA to a maximum of about 240 mA, and is adapted. (Item 31) 30. The electrosurgical pencil according to item 30, wherein the at least one voltage divider network is in such a form and adapted that the current intensity varies from a minimum of about 100 mA to a maximum of about 200 mA. (Item 32) The item, wherein the at least one voltage divider network is set to the minimum when the at least one voltage divider network is placed in the most recent position, and is set to the maximum when the at least one voltage divider network is placed in the most distal position. The electrosurgical pencil according to 31. (Item 33) The item, wherein the at least one voltage divider network is set to the minimum when the at least one voltage divider network is placed in the most distal position, and is set to the maximum when the at least one voltage divider network is placed in the most recent position. The electrosurgical pencil according to 31. (Item 34) 32. The electrosurgical pencil of item 32, wherein the at least one voltage divider network is in such a form and adapted to provide multiple discrete intensity settings. (Item 35) 32. The electrosurgical pencil according to item 32, wherein the at least one voltage divider network is in such a form and adapted to provide an analog intensity setting. (Item 36) 31. The electrosurgical pencil according to item 31, wherein the waveform duty cycle of the actuation switch varies with changes in intensity produced by the at least one voltage divider network. (Item 37) Electrosurgical pencil, below: Elongated housing; An electrocauter electrode that is supported within the housing and extends distally from the housing and is connected to a source of electrosurgical energy; A plurality of actuation switches supported on the housing, each of which, upon its actuation, selectively completes and is adapted to a control loop extending from the electrosurgical energy source. There are multiple activation switches; and At least one voltage divider network supported on the housing, electrically to the electrosurgical energy source to control the intensity of electrosurgical energy delivered to the electrosurgical pencil. An electrosurgical pencil with at least one voltage divider network to be connected. (Item 38) The at least one voltage divider network further: It comprises a plurality of control wires that electrically interconnect individual actuation switches to the electrosurgical energy source, where each control wire delivers electrosurgical energy to the electrocauter electrode within the electrosurgical pencil. 37. The electrosurgical pencil according to item 37, which is insulated from the control wire to be delivered. (Item 39) 38. The electrosurgical pencil according to item 38, wherein the voltage divider network comprises a slide associated with the housing and operability. (Item 40) 39. The electricity according to item 39, wherein the plurality of actuation switches define a first register network disposed within the housing, and the slide defines a second register network disposed within the housing. Surgical pencil. (Item 41) 40. The electrosurgical pencil according to item 40, wherein the slide simultaneously controls the intensity of electrosurgical energy delivered to the plurality of actuation switches. (Item 42) 41. The electrosurgical pencil according to item 41, wherein at least one actuation switch is in such a form and adapted to control the corrugated duty cycle to achieve the desired surgical purpose. (Item 43) 42. The electrosurgical pencil according to item 42, further comprising a 3-mode actuation switch supported on the housing. (Item 44) The electrosurgical pencil according to item 43, wherein each mode actuation switch then delivers a signal characteristic of the electrosurgical energy source that transmits the corresponding waveform duty cycle to the electrosurgical electrode. (Item 45) The first activation switch then delivers the first characteristic signal that transmits the corrugated duty cycle producing the cutting effect to the electrosurgical energy source, and the second actuation switch follows. Deliver a second characteristic signal that transmits a waveform duty cycle that produces a fusion effect to the source of the electrosurgical energy, where a third actuating switch then produces a coagulation effect. 43. The electrosurgical pencil according to item 43, which delivers a third characteristic signal that transmits the corrugated duty cycle to the source of the electrosurgical energy. (Item 46) 45. The electrosurgical pencil according to item 45, wherein the strength control slide is supported in the housing. (Item 47) 46. The electrosurgical pencil according to item 46, wherein each position on the slide then delivers a signal characteristic of the electrosurgical energy source that adjusts the intensity of the waveform duty cycle corresponding to a particular actuation switch. .. (Item 48) 47. The electrosurgical pencil according to item 47, wherein the slide has a plurality of strength settings. (Item 49) 28. The electrosurgical pencil according to item 48, wherein the slide is 2 kΩ, in a form such that the current intensity varies from a minimum of about 60 mA to a maximum of about 240 mA, and is adapted. (Item 50) 28. The electrosurgical pencil of item 48, wherein the slide is 2 kΩ, in a form such that the current intensity varies from a minimum of about 100 mA to a maximum of about 200 mA, and is adapted. (Item 51) The electrosurgery according to item 50, wherein the slide is set to a minimum when the potentiometer is placed in the first position and is set to a maximum when the potentiometer is placed in the second position. Pencil. (Item 52) 37. The electrosurgical pencil according to item 37, wherein the at least one voltage divider network is rotatably supported on the housing. (Item 53) 51. The electrosurgical pencil according to item 51, wherein the electrocautery electrode is one of a blade, a needle, a loop and a ball. (Item 54) A pair of slide potentiometers, one of which is slidably supported on either side of the plurality of actuation switches, such that the potentiometer can be actuated from any side of the electrosurgical pencil. 51. The electrosurgical pencil according to item 51, which includes a nab. (Item 55) 54. The electrosurgical pencil of item 54, wherein the housing comprises a recess formed on its outer surface, and a plurality of actuation switches and nubs of the voltage divider network are located within the recess. (Item 56) 42. The electrosurgical pencil according to item 42, further comprising a molded handgrip operably supported on the housing. (Item 57) 56. The electrosurgical pencil according to item 56, wherein the hand grip has a shape and dimensions that reduce user hand fatigue. (Item 58) 56. The electrosurgical pencil according to item 56, wherein the handgrip provides traction that prevents movement of the pencil while altering the slide. (Item 59) The electrosurgical pencil comprises a three-mode actuation switch supported on the housing, and each of the three-mode actuation switches delivers a signal characteristic of a source of electrosurgical energy. The electrosurgical pencil according to item 41, wherein the source of the electrosurgical energy is adapted and then transmits the corresponding corrugated duty cycle to the end effector. (Item 60) The first mode activation switch activates the waveform duty cycle that produces the dissection effect, the second mode activation switch activates the waveform duty cycle that produces the dissection and hemostatic effect, and the third mode activation switch activates the waveform duty cycle. The electrosurgical pencil according to item 59, which operates a corrugated duty cycle that produces a hemostatic effect. (Item 61) 60. The electrosurgical pencil according to item 60, wherein the at least one voltage divider network comprises a pair of nubs on the housing, one on either side of the actuation switch, each slidably supported. (Item 62) The at least one voltage divider network corresponds to a first position corresponding to the minimum intensity, a second position corresponding to the maximum intensity, and the first position corresponding to the intensity between the minimum intensity and the maximum intensity. Item 6. The electrosurgical pencil according to item 61, which has a plurality of positions between and a second position. (Item 63) 62. The electrosurgical pencil according to item 62, wherein the at least one voltage divider network is adapted in such a manner that the current intensity varies from a minimum of about 60 mA to a maximum of about 240 mA at 2 kΩ. (Item 64) 63. The electrosurgical pencil according to item 63, wherein the at least one voltage divider network is adapted in such a manner that the current intensity varies from a minimum of about 100 mA to a maximum of about 200 mA. (Item 65) The item, wherein the at least one voltage divider network is set to the minimum when the at least one voltage divider network is placed in the most recent position, and is set to the maximum when the at least one voltage divider network is placed in the most distal position. The electrosurgical pencil described in 64. (Item 66) The item, wherein the at least one voltage divider network is set to the minimum when the at least one voltage divider network is placed in the most distal position, and is set to the maximum when the at least one voltage divider network is placed in the most recent position. 65. Electrosurgical pencil. (Item 67) 65. The electrosurgical pencil according to item 65, wherein the at least one voltage divider network is adapted in such a manner that it provides a plurality of discrete intensity settings. (Item 68) 65. The electrosurgical pencil according to item 65, wherein the at least one voltage divider network is in such a form and adapted to provide an analog intensity setting. (Item 69) 64. The electrosurgical pencil according to item 64, wherein the waveform duty cycle of the actuation switch varies with changes in intensity produced by the at least one voltage divider network. (Item 70) 37. The electrosurgical pencil according to item 37, wherein the strength control slide is positioned on the body for each actuation button. (Item 71) The electrosurgical pencil according to item 70, wherein each slide operates a voltage divider network, which produces a characteristic signal on a separate control wire to the electrosurgical energy source. ..</p><p> An electrosurgical pencil is provided, which includes an elongated housing, an electrocautery blade supported within the housing and extending distally from the housing. This electrocautery blade is connected to a source of electrosurgical energy. The pencil also includes at least one actuation switch supported on the housing, which is in a form and adapted to complete a control loop extending from a source of electrosurgical energy. At least one voltage divider network is also supported on this housing and electrically connected to a source of electrosurgical energy.</p><p> (Summary) The present disclosure relates to electrosurgical pencils with variable controls. According to one aspect of the disclosure, the electrosurgical pencil comprises an elongated housing and an electrocauter blade, which is supported within the housing and extends distally from the housing. The electrocautery blade is then connected to a source of electrosurgical energy. The pencil also comprises a plurality of actuation switches supported on the housing. Each actuation switch is adapted to a control loop extending from this source of electrosurgical energy during its actuation and is configured to selectively complete this loop. At least one voltage divider network is also supported on this housing. This voltage divider network (hereinafter "VDN" in the specification) is electrically connected to a source of electrosurgical energy and controls the intensity of electrosurgical energy delivered to multiple actuation switches.</p><p> The VDN preferably comprises at least one return control wire, which is provided to electrically interconnect the electrocautery electrode and the source of electrosurgical energy. This return control wire transfers excess electrosurgical energy from the electrocautery electrode to a source of electrosurgical energy.</p><p> The VDN may further include multiple control wires, each of which is for actuating switches to electrically interconnect to a source of electrosurgical energy. Each control wire delivers electrosurgical energy from a source of electrosurgical energy to the electrocautery electrode.</p><p> Desirably, the voltage divider network includes a slide potentiometer associated with operability in the housing. The slide potentiometer simultaneously controls the intensity of electrosurgical energy delivered to multiple actuation switches.</p><p> Multiple actuation switches define a first resistor network positioned within the housing, and a slide potentiometer defines a second resistor network positioned within the housing.</p><p> It is expected that this voltage divider network may include an algorithm that stores the final configuration for each actuating switch. It is further predicted that this voltage divider network may include an algorithm that requires the slide potentiometer to be set to 0 each time the mode of operation of this electrosurgical pencil is changed.</p><p> The actuation switch is preferably configured and adapted to control the waveform duty cycle to achieve the desired surgical purpose. Additional switches can be utilized to control the so-called "mode" of operation (ie, disconnection, solidification, fusion) and / or to control intensity / power.</p><p> This electrosurgical pencil is expected to have three mode actuation switches supported on the housing. Each mode-activated switch preferably delivers a characteristic signal to a source of electrosurgical energy, which in turn transmits the corresponding waveform duty cycle to the electrosurgical pencil. The first actuation switch delivers the first characteristic signal to a source of electrosurgical energy, which is then intended to carry a waveform duty cycle that produces a cutting effect. .. The second actuation switch delivers a second characteristic signal to a source of electrosurgical energy, which in turn transmits a waveform duty cycle that produces a fusion effect. The third actuation switch delivers a third characteristic signal to a source of electrosurgical energy, which in turn transmits a waveform duty cycle that produces a coagulation effect.</p><p> It is expected that a single VDN can be supported on the housing. This VDN is preferably configured and adapted to adjust the intensity or power of the waveform duty cycle corresponding to the particular actuation switch. This VDN advantageously has multiple intensity settings. For typical unipolar applications, this VDN is configured and adapted to vary the intensity of current at 2 kΩ with a minimum of about 60 mA to a maximum of about 240 mA, and more preferably with 2 kΩ from a minimum of about 100 mA to a maximum of about 200 mA. Can be done.</p><p> This VDN may be slidably supported on the housing. Therefore, this VDN is set to the minimum when this VDN is placed in the first position (for example, the farthest), and is set to the maximum when this VDN is placed in the second position (closest). Set. The reverse is also possible. This VDN can also be positioned in various positions between them. This VDN can also be configured and adapted to provide multiple increasing (ie, discontinuous) intensity settings, or to be variable over a range. Alternatively, the VDN may be rotatably supported on the housing.</p><p> It is predicted that this electrode may be a blade electrode, a needle electrode, a loop electrode, or a ball electrode. It is also predicted that this VDN could be equipped with a slide potentiometer, and a pair of slidably supported navs on either side of multiple actuation switches, which potentiometers are used on both dominant arms. It can be operated from either side of this electrosurgical instrument for use by the user.</p><p> It is further predicted that the housing may comprise a recess formed on its outer surface, in which a plurality of actuation switches and a nub of at least one voltage divider network are positioned within the recess.</p><p> Desirably, the electrosurgical pencil comprises a molded handgrip that is operably supported on the housing. The handgrip is preferably shaped and sized to reduce user hand fatigue.</p><p> According to another aspect of the present disclosure, an electrosurgical pencil is provided, and the electrosurgical pencil comprises an elongated housing and an electrocautery end effector, which is supported within this housing. It then extends distally from this housing. The electrosurgical pencil also comprises a plurality of actuation switches supported on the housing, each actuation switch being configured and adapted to provide electrosurgical energy to the end effector. The pencil further comprises at least one VDN supported on the housing, which is configured and adapted to control the intensity of electrosurgical energy delivered to the electrocautery blade.</p><p> Each actuation switch is configured and adapted to energize the end effector with a corrugated duty cycle to achieve the desired surgical purpose . Preferably, the electrosurgical pencil comprises three mode-actuated switches supported on the housing, each of which has a characteristic signal (voltage or current level, impedance, capacitance,). Inductance and / or frequency) is configured and adapted to deliver to an electrosurgical energy source, which in turn transmits the corresponding waveform duty cycle to the end effector. The first actuating switch activates the corrugated duty cycle producing the anatomical effect, the second actuating switch activates the corrugated duty cycle producing the drying and hemostasis effect, and the third actuating switch activates the hemostatic duty cycle. Activate the waveform duty cycle that produces the effect of. These effects are typically referred to as cleavage, fusion, and coagulation effects or modes.</p><p> The VDN may have a pair of nubs on the housing that are slidably supported one by one on either side of the actuation switch. It is intended that this VDN can also be configured as a control resistor, which is the first position corresponding to the minimum intensity, the second position corresponding to the maximum intensity, and this minimum intensity and maximum. Has multiple other positions that correspond to the intensities of.</p><p> The duty cycle of the activation switch waveform is intended to change with the change in intensity caused by the VDN.</p><p> These and other objectives will be articulated below by description of the drawings and detailed description of preferred embodiments.</p><p> The accompanying drawings are incorporated herein and form part of the specification, illustrating embodiments of the invention, and given a general description of the invention given above and given below. Along with a detailed description of the embodiments, it is useful to explain the principles of the present invention.</p>
<p> The present invention provides an electrosurgical instrument that does not require the surgeon to continuously monitor the electrosurgical generator. In addition, there is a need for electrosurgical instruments in which the power output can be configured so that the surgeon can adjust his eyes without turning his eyes away from the surgical site and pointing at the electrosurgical generator.</p>
<figref num="1">FIG. 1 is a perspective view of an electrosurgical pencil according to the present disclosure.</figref><figref num="2">FIG. 2 is a partially cut-out perspective view of the electrosurgical pencil of FIG.</figref><figref num="3">FIG. 3 is an exploded perspective view of the electrosurgical pencil of FIGS. 1 and 2.</figref><figref num="4">FIG. 4 is a perspective view of an electrosurgical pencil according to another embodiment of the present disclosure.</figref><figref num="5">FIG. 5 is an upper plan view of the electrosurgical pencil of FIG.</figref><figref num="6">FIG. 6 is a side elevation view of the electrosurgical pencil of FIGS. 4 and 5.</figref><figref num="7">FIG. 7 is a partially cut-out side elevation view of the electrosurgical pencils of FIGS. 4-6.</figref><figref num="8">FIG. 8 is a front elevation view of the electrosurgical pencil of FIGS. 4-7.</figref><figref num="9">FIG. 9 is a side elevation view of an electrosurgical pencil according to another embodiment of the present disclosure.</figref><figref num="10">FIG. 10 is an upper plan view of the electrosurgical pencil of FIG.</figref><figref num="11">FIG. 11 is a front perspective view of the distal end portion of an electrosurgical pencil according to yet another embodiment of the present disclosure.</figref><figref num="12">FIG. 12 is a front perspective view of the distal end portion of an electrosurgical pencil according to yet another embodiment of the present disclosure.</figref><figref num="13">FIG. 13 is an enlarged perspective view of a portion of an electrosurgical pencil, illustrating an exemplary set of switches positioned above this portion.</figref><figref num="14">FIG. 14 is an enlarged perspective view of a portion of an electrosurgical pencil, illustrating another set of exemplary switches positioned above this portion.</figref><figref num="15">FIG. 15 is a perspective view of the switch of FIG.</figref><figref num="16">FIG. 16 is a schematic representation of the voltage divider network of the present disclosure.</figref><figref num="17">FIG. 17 is a front elevation view of the electrosurgical generator of the present disclosure.</figref><figref num="18">FIG. 18 is a flow chart of the operation modes of the electrosurgical pencils of FIGS. 1 to 3.</figref><figref num="19">FIG. 19 is a power setting lookup table for the electrosurgical generator of FIG. 17 for use with the electrosurgical pencils of FIGS. 1-3.</figref><figref num="20">FIG. 20 is a current lookup table for the electrosurgical generator of FIG. 17 for use with the electrosurgical pencils of FIGS. 1-3.</figref><figref num="21">FIG. 21 is an output lookup table for the electrosurgical generator of FIG. 17 for use with the electrosurgical pencils of FIGS. 1-3.</figref><figref num="22">FIG. 22 is a mode and power representation for power for the electrosurgical generator of FIG. 17 for use with the electrosurgical pencils of FIGS. 1-3.</figref>
(Detailed explanation) Preferred embodiments of the currently disclosed electrosurgical pencils are now described in detail with reference to the drawings. In the drawings, similar reference numbers identify similar or identical components. As used herein, the term "distal" refers to a portion farther from the user, while the term "proximal" refers to a portion closer to the user or surgeon.
FIG. 1 shows a perspective view of an electrosurgical pencil constructed according to an embodiment of the present disclosure and commonly referred to by number 10. Although the following description relates to electrosurgical pencils, the features and concepts (or parts thereof) of the present disclosure may apply to any electrosurgical instrument (eg, forceps, suction coagulators, vascular sealers, etc.). Is assumed.
As observed in FIGS. 1-3, the electrosurgical pencil 10 comprises an elongated housing 2 configured and adapted to support the blade receptacle 4 at its distal end 3. The blade receptacle 4 then receives a loop-shaped and / or blade-shaped interchangeable electrocautery end effector 6 in its receptacle. It is understood that the electrocautery blade 6 includes a planar blade, a loop, a needle, and the like. The distal end portion 8 of the blade 6 extends distally from the receptacle 4, while the proximal end portion 11 of the blade 6 (see FIG. 3) is held within the distal end 3 of the housing 2. It is intended that the electrocautery blade 6 is manufactured from a conductive material (eg, stainless steel) or coated with a conductive material.
As shown, the electrosurgical pencil 10 is connected to the conventional electrosurgical generator "G" via cable 12. Cable 12 includes transmission wire 14 (see FIG. 3). The transmission wire 14 electrically interconnects the electrosurgical generator "G" with the proximal end portion 11 of the electrocautery blade 6. The cable 12 further comprises a control wire 16. The control wire 16 electrically interconnects a set of mode actuation switches supported on the outer surface 7 of the housing 2 with the electrosurgical generator "G" (as described in more detail below). For the purposes herein, the term "switch" or "switches" refers to electrical actuators, mechanical actuators, electromechanical actuators (rotary actuators, swivel actuators, toggle-like actuators, buttons, etc.), Or it includes an optical actuator.
Returning to FIGS. 1-3, as described above, the electrosurgical pencil 10 further comprises at least one actuation switch group (preferably three actuation switches 24a-24c), each of which is the outer surface 7 of housing 2. Supported above. Each actuation switch 24a-24c is operably connected to a specific position on the tactile components 26a-26c (eg, a snap-dome is indicated). This then controls the transmission of radio frequency (RF) electrical energy supplied from the generator "G" to the electrosurgical blade 6. More specifically, the tactile components 26a-26c are referred to as voltage divider networks 27 (hereinafter referred to as "VDN" in the present specification. 27 ), operably connected, this network forms a switch closure (eg, indicated here as a film potentiometer). For purposes herein, the term "voltage divider network" is used to determine the output voltage (eg, one of two impedances) across a voltage source connected in series, the closure of a resistor switch. With respect to any known form of capacitance switch closure or induction switch closure (etc.). As used herein, "voltage divider" refers to a plurality of resistors connected in series, which make a fixed or variable portion of the applied voltage available. To provide a tap at a specific point.
In use, depending on which actuation switch group 24a-24c is pressed, the individual switches 26a-26c are pressed into contact with the VDN 27 and a characteristic signal is generated by electrosurgical power generation via the control wire 16. It is transmitted to the machine "G". Control wires 16a-16c are electrosurgically connected to switch groups 26a-26c, preferably via terminals 15 operably connected to VDN 27 (see FIGS. 2 and 3). .. By way of example only, the electrosurgical generator "G" can be used in combination with the above devices, the generator "G" comprising a circuit for interpreting and responding to VDN settings.
Activator groups 24a-24c are configured and adapted to control the modes and / or "waveform duty cycles" to achieve the desired surgical intent. For example, the first actuation switch 24a may be configured to deliver a characteristic signal to the electrosurgical generator "G". This then conveys the duty cycle and / or corrugated shape that produces the cutting effect / function and / or the anatomical effect / function. The second actuation switch 24b, on the other hand, may be configured to deliver a characteristic signal to the electrosurgical generator "G", which in turn then produces a mixing effect / function (eg, anatomical effect / function and hemostatic effect). The duty cycle and / or waveform shape that results in (combination with function) is transmitted. Finally, the third actuation switch 24c can be configured to deliver a characteristic signal to the generator "G", which in turn conveys the duty cycle and / or corrugated shape that produces the hemostatic effect / function. Will be done.
The fourth control wire 16d (ie, the return control wire) is preferably connected to the proximal end 11 of the electrocautery blade 6. As a result, the electrosurgical current induced in the control wires 16a to 16c is prevented from flowing to the electrocautery blade 6 through the actuation switch groups 24a to 24c. This in turn increases the lifetime and service life of the switches 24a-24c.
Thus, a less complex and / or relatively inexpensive switch group 24a-24c may be selected. This is because the switch does not need to carry current during operation. For example, if a fourth control wire 16d is provided, the switches 24a-24d may be constructed by printing conductive ink on a plastic film. On the other hand, if the fourth control wire 16d is not provided, the switch group can be a mold made from standard stamped metal, which increases the overall complexity and cost of the instrument.
Referring to FIG. 16, voltage splitting for interconnecting control wires 16a-16d to working electrosurgical switch groups 24a-24c and interconnecting electrocautery power wires 14 to blade 6 in accordance with an embodiment of the present disclosure. Instrument network (VDN) 27 is shown. The VDN 27 comprises a first transmission line 27a for operating various modes of the electrosurgical pencil 10 electrically connected to one of the control wires 16a-16d (eg, the control wire 16a). .. The VDN 27 comprises a second transmission line 27b for operating the various strengths of the electrosurgical pencil 10 electrically connected to one of the control wires 16a-16d (eg, the control wire 16b). .. The VDN 27 includes a third transmission line 27c and a fourth transmission line 27d for applying the voltage applied to the VDN 27. For example, the third transmission line 27c may be cut off or grounded, and the transmission line 27d may transmit +5 volts.
By way of example only, the VDN 27 may include a first group of resistors "R1" (eg, 6 resistors) connected in series between the transmission line 27c and the transmission line 27d. Preferably, the resistor group "R1" together has a total resistance of about 1000Ω. The first series of resistors "R1" are substantially separated from each other by the first set of switches "S1". Preferably, each switch in this first set of switches "S1" is electrically connected between the adjacent resistor group "R1" of VDN 27 and the transmission line 27a. During operation, various modes of operation for the electrosurgical pencil 10 are activated, depending on which switch or switch group of the first set of switches "S1" is closed.
Further, by way of example only, the VDN 27 may include a plurality of resistors "R2" (eg, four resistors) connected in series between the transmission line 27c and the transmission line 27d. .. Preferably, the resistor group "R2" is combined into a total resistance of about 1000Ω. The second series of resistors "R2" are separated by a second set of switches "S2". Preferably, each switch in the second set of switches "S2" is electrically connected between the adjacent resistor group "R2" of VDN 27 and the transmission line 27b. During operation, radiofrequency (RF) energies of varying intensities are transmitted by the electrosurgical pencil 10 depending on which switch or switch group in the second set of switches "S2" is closed. ..
As also shown in FIG. 16, the transmission wire 14 is either cut off from the VDN 27 or completely separate. Specifically, the transmission wire 14 extends directly from the RF input or generator "G" to the RF output or electrocautery blade 6.
The hemostatic effect / function can be defined as having a waveform with a duty cycle of about 1% to about 12%. The fusion effect / function can be defined as having a waveform with a duty cycle of about 12% to about 75%. The cutting effect / function and / or the incising effect / function can be defined as having a waveform with a duty cycle of about 75% to about 100%. It is important to note that these percentages are approximate and can be customized to deliver the desired surgical effect for different histological types and characteristics.
The electrosurgical pencil 10 further comprises a strength controller 28 that is slidably supported on the housing 2. The strength controller 28 includes a pair of nubs 29a, 29b, one of which is slidably supported in each of the guide channels 30a, 30b, and the guide channels 30a, 30b are housings 2. It is formed on either side of the actuation switches 24a to 24c on the outer surface 7 of the housing. By providing the nabs 29a, 29b on either side of the actuation switches 24a-24c, the controller 28 can be easily operated by either hand of the user, or the same electrosurgical pencil is on the right. It can be operated by both a dominant user and a left-handed user.
Preferably, the intensity controller 28 is a slide potentiometer, in which the nabs 29a, 29b are the first positions corresponding to the relatively low intensity settings (eg, the maximum closest to the cable 12). Proximal position), a second position corresponding to a relatively high intensity setting (eg, the maximum distal position closest to the electrocauter end effector 6), and multiple intermediate positions corresponding to an intermediate intensity setting. Has. As can be understood, the above proximal to distal intensity settings can be reversed (eg, high to low). The nabs 29a, 29b and corresponding guide channels 30a, 30b of the intensity controller 28 are low, providing a series of collaborative, unobtrusive or recessed positions that define a series of positions (preferably 5 locations). It is contemplated that it may be possible to easily select the output intensity from the intensity setting to the high intensity setting. A series of collaborative, unobtrusive or recessed positions also provides the surgeon with some tactile feedback. As most often seen in FIG. 2, the intensity controller 28 may include a series of marks 31 provided on it, which marks 31 can be seen through the guide channels 30a, 30b. Mark 31 is preferably a series of numbers (eg, numbers 1-5), which reflect the level of intensity to be transmitted. Alternatively, a level indicator may be printed along the sides of the guide channels 30a, 30b, along which the nabs 29a, 29b slide.
The strength controller 28 is configured to adjust the power parameters (eg, voltage strength, power strength, and / or current strength), and / or the shape of the power-to-impedance curve to influence the perceived output strength. , And fit. For example, if the intensity controller 28 is placed more distally, higher levels of power parameters are transmitted to the electrocautery blade 6. Presumably, the current intensity can range from about 60mA to about 240mA when using an electrosurgical blade and having a typical tissue impedance of about 2kΩ. The 60mA intensity level provides a very mild and / or minimal, cutting / incision / hemostatic effect. The 240mA intensity level provides a highly aggressive cutting / incision / hemostatic effect. Therefore, the preferred range of current intensity is from about 100mA to about 200mA at 2kΩ.
The intensity setting is preferably preset and selected from the reference table based on the selection of electrosurgical equipment / accessories, desired surgical effect, surgical specialist and / or surgeon's preference. This selection can be made automatically or manually by the user. The intensity value can be predetermined or adjusted by the user.
In surgery, and depending on the particular electrosurgical function desired, the surgeon pushes down one of the actuation switches 24a-24c in the direction indicated by the arrow "Y" (see Figure 1). , Thereby driving the corresponding switches 26a-26c for VDN27, thereby transmitting each characteristic signal to the electrosurgical generator "G". For example, the surgeon may press down on the actuation switch 24a to perform the amputation and / or incision function, press down on the actuation switch 24b to perform the fusion function, or press down on the actuation switch 24c to perform the hemostatic function. obtain. The generator "G" then transmits the appropriate waveform output to the electrocautery blade 6 via the transfer wire 14.
To change the strength of the power parameter of the electrosurgical pencil 10, the surgeon moves the strength controller 28 in the direction indicated by the two-way arrow "X". As mentioned above, the intensity can vary from approximately 60mA for mild effects to approximately 240mA for more aggressive effects. For example, placing the nabs 29a, 29b of the intensity controller 28 closer to the maximum proximal end of the guide channels 30a, 30b (ie, closer to the cable 12) produces lower intensity levels, and Higher intensity levels are generated by placing the nabs 29a, 29b of the intensity controller 28 closer to the maximum distal ends of the guide channels 30a, 30b (ie, closer to the electrocautery terminal effector 6). As a result, a more aggressive effect is produced. If the nabs 29a, 29b of the intensity controller 28 are located at the maximum proximal ends of the guide channels 30a, 30b, the VDN27 is expected to be set to the 0 and / or open position. Preferably, the electrosurgical pencil 10 is shipped with the strength controller 28 set to the 0 and / or open positions.
Preferably, the intensity controller 28 controls the intensity level of electrosurgical energy transmitted simultaneously by all three actuation switches 24a-24c. In other words, when the nabs 29a, 29b of the intensity controller 28 are placed with respect to the guide channels 30a, 30b, the intensity level of electrosurgical energy transmitted to all three actuation switches 24a-24c is a slide potentiometer. Or it is set to the same value of the intensity controller 28.
As a safety precaution, if the electrosurgical pencil 10 is changed from one mode to another, the intensity controller 28 will have to be reset (ie, the nabs 29a, 29b, It is envisioned that it can be relocated to the maximum proximal end of guide channels 30a, 30b and configured (so that the VDN27 must be set to the 0 and / or open position). After being reset, the intensity controller 28 may be adjusted to the desired intensity level and / or the required intensity level for the selected mode, if required.
It is envisioned and conceivable that VDN27 may also include an algorithm that stores the immediately preceding intensity level setting for each mode. In this mode, the intensity controller 28 does not need to be reset to the previous operating value if a particular mode is reselected.
The combination of the placement of VDN27 and the fourth control wire 16d on the electrosurgical pencil 10 is within the electrosurgical pencil 10 throughout the resistor network of the electrosurgical system (eg, the electrosurgical pencil 10 and the electrosurgical energy). Source "G") is effectively placed. Traditional electrosurgical systems typically control a current limiting resistor located within the electrosurgical pencil to operate the electrosurgical pencil, and the intensity of transmitted electrosurgical energy. It is equipped with a second resistor network located at the source of electrosurgical energy for use. According to the present disclosure, both the first and second resistor networks are located within the electrosurgical pencil 10 (ie, the first resistor network, as indicated by actuation switches 24a-24c). And a second resistor network, as indicated by the strength controller 28).
As mentioned above, the intensity controller 28 may be configured and adapted to provide some tactile feedback. Alternatively, audible feedback can be generated from the intensity controller 28 (eg, "click"), or from the electrosurgical energy source "G" (eg, "tone"), and / or It can be generated from an auxiliary sound generation device (eg, buzzer) (not shown).
Preferably, as seen in FIGS. 1 and 3, the strength controller 28 and the actuation switches 24a-24c are supported in a recess 9 formed in the outer wall 7 of the housing 2. Desirably, the actuation switches 24a-24c are placed in a position where the surgeon's fingers are normally resting when the electrosurgical pencil 10 is held in the surgeon's hand, while the strength controllers 28 nabs 29a, 29b , It is placed in a position that is not confused with the operation switches 24a to 24c. Alternatively, the nabs 29a, 29b of the strength controller 28 are placed in a position where the surgeon's fingers are normally stationary when the electrosurgical pencil 10 is held in the surgeon's hand, while the actuation switches 24a-24c are It is placed in a position that is not confused with the nabs 29a and 29b of the strength controller 28. In addition, the recess 9 formed in the outer wall 7 of the housing 2 advantageously activates the actuation switches 24a-24c and the strength controller 28 (eg, during the surgical field and / or during the surgical procedure). , Push down, slide and / or operate) to a minimum.
As can be seen in FIG. 3, the electrosurgical pencil 10 comprises a molded / contoured handgrip 5, which covers the distal and proximal ends of housing 2 and the underside of housing 2. , Enclose enough. The contoured handgrip 5 is shaped and dimensioned to improve the surgeon's handling of the electrosurgical pencil 10. Therefore, lower pressure and grip force are required to use and / or operate the electrosurgical pencil 10, thereby strongly reducing the fatigue experienced by the surgeon and proximal to the nabs 29a and 29b. Lower pressure and grip force are required to prevent movement of the electrosurgical pencil 10 during and distal adjustment.
Here, referring to FIGS. 4-8, an electrosurgical pencil configured according to another embodiment of the present disclosure is generally shown as 100. The electrosurgical pencil 100 comprises at least one actuation switch, preferably three actuation switches 124a-124c, each of which is supported by the outer surface 107 of the housing 102. Each actuation switch 124a-124c is operably connected to a respective switch 126a-126c, and then these switches 126a-126c are RF electrical energy supplied from the generator "G" to the electrocauter blade 106. Control the transmission of. More specifically, switches 126a-126c are electrically connected to the control loop 116 and close the control loop 116 and / or complete the control loop 116, whereby RF energy is electrosurgically generated. It is configured to allow transmission from the machine "G" to the electrocautery blade 106.
Activators 124a-124c are configured to control modes and / or "waveform duty cycles" to achieve the desired surgical objective in the same manner as actuation switches 24a-24c of the electrosurgical pencil 10 described above. It is adapted.
The electrosurgical pencil 100 further comprises at least one strength controller, preferably two strength controllers 128a and 128b, each of which is supported by sliding into guide channels 130a, 130b, respectively. , These guide channels are formed on the outer surface 107 of the housing 102. Preferably, each intensity controller 128a and 128b is a slide-like potentiometer. The intensity controllers 128a and 128b and the guide channels 130a and 130b define a series of positions, preferably 5 positions, to allow easy selection of output intensities from the smallest to the highest amount. It is intended that synergistic, discontinuous or demobilized positions may be provided. A series of synergistic discontinuous or demobilized positions also provides the surgeon with some tactile feedback. It is further assumed that one of the series of positions relative to the intensity controllers 128a, 128b is the off position (ie, the level of electrical or RF energy transmitted is 0).
Strength controllers 128a, 128b adjust the shape of the power-to-impedance curve that affects one of the power parameters (eg, voltage, power and / or current strength) and / or the sensed output strength. It is configured and adapted to.
For example, the greater the intensity controllers 128a, 128b are moved in the distal direction (ie, the orientation of the electrocautery blade 106), the greater the level of force parameters transmitted to the electrocautery blade 106. Become. Perhaps when using an electrosurgical blade and having a typical tissue impedance of about 2000Ω, the current strength can be in the range of about 60mA to about 240mA. The 60mA intensity level provides a very small and / or minimal cutting / dissection / hemostatic effect. The 240mA intensity level provides a very active cutting / dissection / hemostatic effect. Therefore, the preferred current intensity range is from about 100mA to about 200mA at 2kΩ.
The intensity setting is preferably preset and selected from a look-up table based on the selection of electrosurgical instruments / accessories, desired surgical effect, desired surgical features and / or surgeon's preference. This selection can be made automatically or manually by the user. The intensity value can be predetermined or adjusted by the user.
While driving, depending on the particular electrosurgical function desired, the surgeon will place one of the actuation switches 124a-124c in the orientation indicated by the arrow "Y" (see Figures 4 and 7). Push down, thereby closing the corresponding switches 126a-126c, and closing the control loop 116, and / or completing. For example, the surgeon may press down on the actuation switch 124a to perform cutting or anatomical function, press down on actuation switch 124b to perform anatomical / hemostatic function, or press down on actuation switch 124c to perform hemostatic function. obtain. The generator "G" then transmits an appropriate waveform output to the electrocautery blade 106 via the transfer wire 114.
To vary the intensity of the power parameter (preferably the strength of the current) of the electrosurgical pencil 100, the surgeon has at least one intensity controller 128a, 128b oriented in the direction indicated by the two-way arrow "X". Move. As mentioned above, the intensity can vary from about 60mA for small effects to about 240mA for more active effects. For example, positioning one of the intensity controllers 128a, 128b so that it is closest to the most proximal end (ie, closer to the cable 112) produces a small effect, and the intensity controller 128a Positioning one of the 128b closer to the most distal end (ie, closer to the electrocautery blade 106) produces a more active effect. As mentioned above, each intensity controller 128a, 128b can be configured and adapted to provide some tactile feedback. Alternatively, audible feedback can be provided for each intensity controller 128a, 128b (eg, "click"), electrosurgical energy source "G" (eg, "sound") and / or ancillary sound-generating device (eg, buzzer). ) (Not shown).
In an alternative embodiment, as seen in FIGS. 9 and 10, the sliding intensity controllers 128a, 128b have been replaced by intensity controllers 228a, 228b in the form of a dial-like VDN. The intensity controllers 228a, 228b are powered by the rotation of the dial controllers 228a, 228b in either the clockwise or counterclockwise direction, as indicated by the two-way arrow "Z". Works to fluctuate. As seen in FIGS. 6 and 7, the dial controllers 228a, 228b are located outside the housing 102, but only the part for operation by the surgeon protrudes from the housing 102, and the dial controllers 228a, 228b It is intended to be located within housing 102. It is envisioned that the strength controllers 228a, 228b can be a single controller with a pair of opposed knobs / dials (one provided on each side of the housing 102). In this mode, the intensity can be controlled from either side of the electrosurgical pencil 100.
Surgeons have numerous controls at the tips of their fingers, so there are many effects among many effects and therapeutic effects that vary from pure "cutting" effects to pure "coagulation" effects. Palette can be made. Moreover, if the electrosurgical energy source "G" is preset to some extent, the electrosurgical pencil 100 has all the useful settings available to the surgeon within the sterile area. Thus, once the surgical procedure is initiated and the surgeon is able to focus his attention on the surgical procedure, the surgeon will be able to use the hardware outside the sterile area (eg, the electrosurgical energy source "G". ) Does not need to interact.
Although embodiments of electrosurgical pencils according to the present disclosure are described herein, the present disclosure is not intended to be limited thereto and the above description is construed as merely an example of a preferred embodiment. Should be. Those skilled in the art envision other modifications within the scope of this disclosure and within the spirit of this disclosure.
For example, as seen in FIG. 11, alternative embodiments of electrosurgical pencils are commonly shown as 200. The electrosurgical pencil 200 is similar to the electrosurgical pencils 10 and / or 100 and is only discussed in detail to the extent necessary to identify differences in structure and operation. As can be seen in FIG. 11, the electrosurgical pencil 200 comprises a plurality of nabs, preferably three nabs, 229a-229c, each of which is a guide channel 230a formed on the outer surface 7 of the housing 2. One by one at ~ 230c, it is slidably supported proximal to the actuation switches 24a ~ 24c. Each nub 229a-229c is operably engaged with a slide potentiometer.
Thus, the electrosurgical pencil 200 may be configured such that each actuation switch 24a-24c is in a separate mode, eg, the electrosurgical pencil 200 "splits" when the actuation switch 24a is depressed. Can be set to, the electrosurgical pencil 200 can be set to perform a "split with hemostatic" when the actuation switch 24b is depressed, and the electrosurgical pencil 200 can be set when the actuation switch 24c is depressed. Can be set to perform "hemostatic". In addition, each nub 229a-229c operates and engages with the corresponding actuation switch 24a-24c so that the power for each mode of operation of the electrosurgical pencil 200 can be adjusted independently.
As can be seen in FIG. 12, the nabs 229a-229c of the electrosurgical pencil are replaced by toggles 231a-231c operably engaged with the respective actuation switches 24a-24c. Each toggle 231a-231c may be operably engaged with a rocker switch (not shown) or a rotary dial (not shown) instead of the sliding potentiometer described above.
Here, with reference to FIGS. 13-15, an electrosurgical pencil according to yet another embodiment of the present disclosure is generally designated as 300. The electrosurgical pencil 300 is similar to the electrosurgical pencils 10 and / or 100 and is only discussed in detail to the extent necessary to identify differences in assembly and operation. As seen in FIGS. 13 and 14, the nubs 29a, 29b are replaced by a dial 329 rotatably supported by an opening 330 formed in the outer surface 7 of the housing 2. Preferably, the dial 329 is positioned in front of the actuating switch 24a so that it is not inadvertently rotated during the descent of any one of the actuating switches 24a-24c.
As seen in FIG. 13, side 331 of dial 329 shows the surgeon the degree and / or level of power set by the electrosurgical pencil 300 in the form of the scale and / or other gradients. Morphological indicators and / or the symbol "M" may be provided.
As seen in FIGS. 14 and 15, the window 332 can be formed on any side of the dial 329 on the outer surface 7 of the housing 2. As seen in FIG. 15, the window 332 provides the surgeon with a view of the indicator "M" provided on the stub 333 extending from the central axis of the dial 329. The indicator "M" can be in the form of numbers, letters, colors, and an expansion gradient, as seen in Figures 14 and 15. Each dial 329 may perform dual functions, for example, the dial 329 may be rotated to set the desired power level and pushed down to operate the electrosurgical pencil in the desired mode. Is expected.
Here, with reference to FIG. 17, an electrosurgical generator according to one embodiment of the present disclosure is commonly referred to as a "G". The electrosurgical generator "G" comprises a plurality of displays 402 (here, three displays, 402a to 402c are shown). Each of the displays 402a-402c may have a large number of screens, windows or tabs, as indicated by the numbers 404a-404c.
Each screen 404a-404c of each display 402a-402c may comprise a large number of display elements 406. As a mere example, as seen in FIG. 17, screen 404b of display 402a comprises at least three display elements 406a-406c. Display element 406a may indicate that the mode and power settings of the electrosurgical generator "G" are being transmitted to the electrosurgical pencil 10. Display element 406b may indicate that the range or bar setting of the electrosurgical generator "G" is being transmitted to the electrosurgical pencil 10. Display element 406c may indicate the position of the slider on the electrosurgical pencil 10.
Here, with reference to FIGS. 18 to 22, a flow chart (FIG. 18) showing how to use the electrosurgical pencil 10 equipped with the electrosurgical generator G of FIG. 17 for a plurality of settings (FIGS. 19 to 22). ) Is shown and explained. First, the bar level or setting of the electrosurgical generator "G" is selected by the user. As a mere example, as seen in Figures 17, 19 and 20, the electrosurgical generator "G" has five levels or settings, but a number of other levels or settings are possible. By selecting a particular bar level or setting, as seen in the tables in Figures 19 and 20, the electrosurgical generator "G" is to provide a predetermined level of power and current for each mode of operation. Is set to.
When the bar level or setting is selected, the user follows the nabs 29a and / or 29b along the guide channels 30a, 30b of the electrosurgical pencil 10 when required or desired, as seen in FIG. Set the intensity controller 28 (Figure 2) by sliding it to one of many positions. The nabs 29a and 29b of the intensity controller 28 are shown and described as being configurable in five positions along the electrosurgical pencil 10, but this electrosurgical pencil 10 is the nab of the intensity controller 28. It is conceivable that for 29a, 29b, it may be configured to provide more or less than five configurable positions, and this is within the scope of this disclosure. By positioning the intensity controller 28 in a particular setting, the electrosurgical generator "G" provides a predetermined level of power and current for each mode of operation, as seen in the tables 19 and 20. Is set.
When the bar level or setting is selected and the intensity controller 28 is set, the required or desired operating mode of the electrosurgical pencil 10 is the appropriate or corresponding activation switch, as seen in FIG. It is activated by pressing 24a ~ 24c (Fig. 1). As described above, pressing switch 24a activates disconnect mode, pressing switch 24b activates fusion or split mode, and pressing switch 24c activates coagulation mode.
For example, as seen in FIG. 19, when the bar level or setting of the electrosurgical generator "G" is set to "2" and the position of the intensity controller 28 is set to "4", each operating mode The power values for: 150 watts in mode 1 for cutting; 100 watts in mode 2 for fusion or splitting; and 60 watts in mode 3 for solidification. In addition, as seen in Figure 20, the current values for this particular setting are: 0.625 amps in mode 1 for cutting; 0.500 amps in mode 2 for fusion or splitting; and 0.500 amps in mode 2. 0.500 amps in mode 3.
As can be seen in FIG. 21, the output frequency and duty cycle for each operating mode are shown. FIG. 21 also shows the position of the strength controller 28 of the electrosurgical pencil 10 for each operating mode when the bar or level setting of the electrosurgical generator G is set to 2. A summary of the various current settings from FIG. 20 is shown.
In FIG. 22, a diagram for each position of the strength controller 28 of the electrosurgical pencil 10 for each operating mode when the bar or level setting of the electrosurgical generator G is set to 2. A summary of the various power settings from 19 is shown.
Any electrosurgical pencil disclosed herein is for electrosurgical use when one of the actuation switches is pressed, the other actuation switches cannot be pressed or on the electrocautery blade 106. It is further envisioned that a lockout mechanism / system (not shown) that is either incapable of transmitting energy may be provided.
The electrosurgical pencil 100 may be equipped with smart recognition technology that contacts the generator to identify the electrosurgical pencil and communicate with various surgical parameters for treating tissue with the electrosurgical pencil 100. Is also assumed. For example, the Electrosurgical Pencil 100 is readable by a generator and has a bar code or Aztec code that presets the generator to default parameters associated with treating tissue with an electrosurgical pencil. Can be equipped. Barcodes or Aztec codes are also readable by the generator and may contain programmable data that programs the generator to specific electrical parameters prior to use.
Other smart recognition technologies are also envisioned, which allow the generator to determine the type of equipment used, or to ensure proper installation of the equipment in the generator as a safe mechanism. .. One such safety connector has been identified in U.S. Patent Application No. 10 / 718,114, filed November 20, 2003, which is hereby incorporated by reference in its entirety. Will be done. For example, in addition to the smart recognition technology described above, such safety connectors are plugs or male parts operably connected to electrosurgical pencils, and complements operably connected to electrosurgical generators. It may have a mold socket or female portion. The socket portion is "retrograde compatible" and accepts the connector portion of the electrosurgical pencil disclosed therein and the connector portion of the prior art electrosurgical instrument.
Current control can be based on current density or specific current (amps / cm) for a determined surface area.<sup>2</sup>) Can also be designed to supply.
Although the device of the present invention has been described with respect to preferred embodiments, those skilled in the art to which the present invention belongs will appreciate the device of the present invention without any modification or modification departing from the spirit and scope of the device of the present invention. It is easy to understand what can be done against it.
2 Elongated housing 6 Electric cautery blade 10 Electrosurgical pencil 24a, 24b, 24c operation switch 27 Voltage divider network
22 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7 Sheet 8 Sheet 9 Sheet 10 Sheet 11 Sheet 12 Sheet 13 Sheet 14 Sheet 15 Sheet 16 Sheet 17 Sheet 18 Sheet 19 Sheet 20 Sheet 21 Sheet 22
Every citation, both ways
| Document | Relation | Office |
|---|---|---|
| JP61179142A | Cites | Japan |
| US4606342A | Cites | United States of America |
| WO2005060849A1 | Cites | World Intellectual Property Organization (WIPO) |
39 members in 6 offices
Members39
| Document | Office | Kind | |
|---|---|---|---|
| US2005113824A1 | United States of America | A1 | |
| WO2005060849A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU2003294390A1 | Australia | A1 | |
| US2006041257A1 | United States of America | A1 | |
| CA2522240A1 | Canada | A1 | |
| EP1645233A1 | European Patent Office (EPO) | A1 | |
| JP2006102513A | Japan | A | |
| AU2005220218A1 | Australia | A1 | |
| US2006178667A1 | United States of America | A1 | |
| CA2541482A1 | Canada | A1 | |
| EP1707145A2 | European Patent Office (EPO) | A2 | |
| AU2006201358A1 | Australia | A1 | |
| JP2006280956A | Japan | A | |
| US7156842B2 | United States of America | B2 | |
| US2007093810A1 | United States of America | A1 | |
| US7503917B2 | United States of America | B2 | |
| EP1707145A3 | European Patent Office (EPO) | A3 | |
| US2009143778A1 | United States of America | A1 | |
| US7879033B2 | United States of America | B2 | |
| EP2292171A2 | European Patent Office (EPO) | A2 | |
| US2011092971A1 | United States of America | A1 | |
| US7959633B2 | United States of America | B2 | |
| AU2011203364A1 | Australia | A1 | |
| AU2005220218B2 | Australia | B2 | |
| AU2006201358B2 | Australia | B2 | |
| JP4871566B2 | Japan | B2 | |
| JP2012045409A | Japan | A | |
| JP2012071155A | Japan | A | |
| JP4943039B2 | Japan | B2 | |
| AU2011203364B2 | Australia | B2 | |
| US8449540B2 | United States of America | B2 | |
| JP2013223769A | Japan | A | |
| JP5437342B2This record | Japan | B2 | |
| CA2522240C | Canada | C | |
| EP2292171A3 | European Patent Office (EPO) | A3 | |
| CA2541482C | Canada | C | |
| EP1645233B1 | European Patent Office (EPO) | B1 | |
| EP1645233B8 | European Patent Office (EPO) | B8 | |
| EP1707145B1 | European Patent Office (EPO) | B1 |
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Numbers
- Publication
- 5437342
- Application
- 235185
Titles2
- Japanese
- 改善された制御を有する電気外科ペンシル
- English
- Electrosurgical pencil with improved control
Classification
- CPC, 3
- A61B18/1402
- A61B2018/00928
- A61B2018/00946
- IPC, 3
- A61B18 12
- A61B18 00
- A61B18 14
