Modular Hip prosthesis
Abstract
A modular hip prosthesis, comprising (a) a proximal segment including a neck that can be locked and engageable with a femoral front component and a male tapered portion; (b) having a proximal end and a distal end The distal segment of the side tip, in addition to forming the distal segment, has a male tapered portion adjacent to its proximal end and (C) a stem having a proximal end and a distal end. Section, the stem end section preferably includes a part of the outer surface of the joint bone, and includes an axial hole passing through it. Respective first and second female tapered parts. The first female tapered portion of the dry end segment is configured to lock and engage the male tapered portion of the proximal segment. The two-female tapered part of the dry end segment is configured to lock and engage the male tapered part of the distal segment. If necessary, place a screw (pass it through the aligned holes of the proximal, stem, and distal segments due to its configuration) and the thread formed in the proximal end of the distal segment. There are threaded holes for threaded engagement.
Term
No projected expiry on record.
- Priority
- Filed
- Granted
- Today
69 claims: 69 independent, 0 dependent
- 1A modular hip prosthesis, comprising:a proximal section including a neck that is locked and engageable with a front component of the femur, and the proximal section additionally includes a distal part from the neck A male conical portion extending laterally;a distal segment having a proximal end and a distal tip, the distal segment including a male conical portion adjacent to its proximal end;having a proximal The posterior segment of the stem bone at the side end and a distal end, the stem end segment includes a portion of the outer surface of the joint bone, and the stem segment further includes an axial hole passing through it, the shaft The directional hole includes first and second female tapered parts. The first female tapered part is positioned adjacent to the proximal end of the posterior segment of the bone, and the size is made into a male cone that can lock the proximal segment. The second female cone-shaped part is positioned adjacent to the distal end of the posterior segment of the bone, and its size is made to lockably engage the male cone-shaped part of the distal segment. 1.一種模組臀彌補物，包括：一個近側分段，該近側分段包括與一個股骨之前組成部份鎖緊可接合之頸部，該近側分段另外包括自該頸部遠側延伸之一個陽錐形部份；具有一個近側端和一個遠側尖之遠側分段，該遠側分段包括接鄰於其近側端之一個陽錐形部份；具有一個近側端和一個遠側端之幹骨后端分段，該幹端分段包括一個接合骨之外表面部份，該幹骨后端分段另外包括通經其中之一個軸向孔，該軸向孔包括第一和第二陰錐形部份，將第一陰錐形部份定位接鄰於幹骨后端分段之近側端其大小作成可鎖緊接合近側分段的陽錐形部份，將第二陰錐形部份定位接鄰於幹骨后端分段之遠側端，其大小作成可鎖緊接合遠側分段的陽錐形部份。
- 2For example, the modular hip prosthesis of item 1 of the scope of patent application, wherein the proximal segment additionally includes an axial hole passing through it, and the proximal segment can be joined with the proximal end of the posterior segment of the bone And to align the axial holes formed by the near section and the posterior part of the stem, the distal section additionally includes a threaded axial hole adjacent to its proximal end, and the proximal section of the distal section The lateral end and the distal end of the posterior segment of the stem can be engaged to align the axial holes formed by the distal and posterior segments of the stem. The modular buttock compensation additionally includes a screw whose size is made It can be threadedly engaged with the threaded axial hole of the distal section through the aligned holes of the proximal side, the posterior end of the bone, and the distal side. 2.如申請專利範圍第1項之模組臀彌補物，其中近側分段另外包括通經其中之一個軸向孔，該近側分段與幹骨后端分段之近側端可接合而使通過近測和幹骨后端等分段所形成之各個軸向孔對齊，該遠側分段另外包括一個刻有螺紋之軸向孔接鄰其近側端，遠側分段之近側端與幹骨后端分段之遠側端可接合而使通過遠側和幹骨后端等分段所形成之各個軸向孔對齊，該模組臀彌補物另外包括一個螺釘其大小作成可通經近側、幹骨后端和遠側等分段的已對齊之各孔而與遠側分段之刻有螺紋之軸向孔以螺紋接合。
- 3For example, the modular hip prosthesis of item 1 of the scope of patent application, wherein the distal segment includes a part of the outer surface of the joint bone. 3.如申請專利範圍第1項之模組臀彌補物，其中遠側分段包括一個接合骨之外表面部份。
- 4The modular hip prosthesis of item 3 of the scope of patent application, wherein the surface of the joint bone of the distal segment includes each longitudinal groove formed along its incremental length. 4.如申請專利範圍第3項之模組臀彌補物，其中遠側分段之接合骨之表面包含沿著其增量長度所形成之各個縱向溝槽。
- 5Such as the modular buttocks make-up of item 1 in the scope of patent application, wherein the distal segment additionally includes a slit along the crown of its incremental length. 5.如申請專利範圍第1項之模組臀彌補物，其中遠側分段另外包含沿著其增量長度之冠的狹縫。
- 6For the modular buttocks of item 3 of the scope of patent application, the surface of the joint bone of the distal segment is selected from the group consisting of:sandblasted surface, sintered metal bead paint, and base Apatite coatings, plasma jet coatings, bio-glass ceramic coatings, demineralized bones and carriers, growth factors and carriers. 6.如申請專利範圍第3項之模組臀彌補物，其中遠側分段之接合骨之表面係選自下列所構成之族群：砂礫噴淨之表面、經燒結之金屬珠塗料、經基磷灰石塗料、電漿噴射塗料、生物玻璃陶瓷塗料、脫礦質之骨和載體及生長因素和載體。
- 7For example, the modular buttock prosthesis of item 1 in the scope of patent application, wherein the proximal segment has a generally circular cross-section. 7.如申請專利範圍第1項之模組臀彌補物，其中近側分段具有一個通常圓形橫截面。
- 8Such as the modular hip prosthesis of item 3 in the scope of patent application, wherein the distal tip of the distal segment has a generally parabolic axial section. 8.如申請專利範圍第3項之模組臀彌補物，其中遠側分段的遠側尖具有一個通常拋物線形軸向截面。
- 9As for the modular buttocks make-up of item 1 in the scope of patent application, the distal segment is composed of a material selected from the group consisting of titanium metal alloy, cobalt-chromium alloy and stainless steel. 9.如申請專利範圍第1項之模組臀彌補物，其中遠側分段係由選自下列所構成之族群的一種材料所構成：鈦金屬合金、鈷鉻合金和不銹鋼。
- 10For example, the modular buttocks make-up of item 1 of the scope of patent application, in which the male tapered part of the distal segment and the second female tapered part of the posterior segment of the stem each contain a mixture of a normal Conical conical section in parabolic section. 10.如申請專利範圍第1項之模組臀彌補物，其中遠側分段的陽錐形部份及幹骨后端分段的第二陰錐形部份每一者包含混合入一個通常拋物線截面中之圓錐錐形截面。
- 11For the modular hip make-up of item 10 in the scope of patent application, the ratio of the length of the parabolic cone to the length of the conical cone ranges from about 5% to about 30%. 11.如申請專利範圍第10項之模組臀彌補物，其中拋物線錐形長度與圓錐錐形長度之比其範圍自大約5%至大約30%。
- 12For example, the modular hip prosthesis of item 11 of the scope of patent application, in which the conical cone section of the distal segment and the cone angle of the second female conical part of the posterior segment of the shaft range from approximately 1° to approximately 12.如申請專利範圍第11項之模組臀彌補物，其中遠側分段的各圓錐錐形截面及幹骨后端分段的第二陰錐形部份之錐形角其範圍自大約1°至大約
- 132.5°。 2.5°。
- 1413. The modular buttocks prosthesis of item 1 of the scope of patent application, wherein the male conical section of the proximal side section is formed on the extension member extending from the far side of the neck. 13.如申請專利範圍第1項之模組臀彌補物，其中將近側分段的陽錐形截面形成在自頸部遠側延伸之延伸構件上。
- 1514. The modular buttocks prosthesis of item 13 of the scope of patent application, wherein the extension member includes a threaded socket member segmented from its distal side. 14.如申請專利範圍第13項之模組臀彌補物，其中延伸構件包括自其遠側分段之一個螺紋接套構件。
- 1615. For example, the modular hip make-up of item 1 of the scope of patent application, in which the male conical part of the proximal segment and the first female conical part of the posterior segment of the shaft each contain a mixture of a normal A conical conical section in a parabolic section. 15.如申請專利範圍第1項之模組臀彌補物，其中近側分段的陽錐形部份及幹骨后端分段的第一陰錐形部份每一者包含混合入一個通常拋物線截面中之一個圓錐錐形截面。
- 1716. For example, the 15th modular hip make-up in the scope of patent application, wherein the ratio of the length of the parabolic cone to the length of the conical cone ranges from about 5% to about 30%. 16.如申請專利範圍第15項之模組臀彌補物，其中拋物線錐形長度與圓錐錐形長度之比其範圍自大約5%至大約30%。
- 1817. For example, the 16th modular hip prosthesis of the scope of patent application, in which the tapered angles of each conical section of the proximal segment and the first female tapered portion of the posterior segment of the shaft range from approximately 1° to approximately 17.如申請專利範圍第16項之模組臀彌補物，其中近側分段的各圓錐錐形截面及幹骨后端分段的第一陰錐形部份之錐形角其範圍自大約1°至大約
- 192.5°。 2.5°。
- 2018. As for the modular buttocks make-up of item 1 in the scope of patent application, the proximal segment is composed of a material selected from the group consisting of titanium metal alloy, cobalt-chromium alloy and stainless steel. 18.如申請專利範圍第1項之模組臀彌補物，其中近側分段係由選自下列所構成之族群的一種材料所構成：鈦金屬合金、鈷鉻合金和不銹鋼。
- 2119. For example, the modular hip make-up of item 1 of the scope of patent application, in which the surface of the joint bone of the rear segment of the dry bone is selected from the group consisting of:sandblasted surface treatment, sintered metal bead coating , Hydroxyapatite coatings, plasma jet coatings, biological glass ceramic coatings, demineralized bones and carriers, and growth factors and carriers. 19.如申請專利範圍第1項之模組臀彌補物，其中幹骨后端分段之接合骨之表面係選自下列所構成之族群：砂礫噴淨之表面處理、經燒結之金屬珠塗料、羥基磷灰石塗料、電漿噴射塗料、生物玻璃陶瓷塗料、脫礦質之骨和載體及生長因素和載體。
- 2220. For example, the modular hip make-up of item 1 in the scope of patent application, wherein the rear segment of the bone is made of a material selected from the group consisting of titanium metal alloy, cobalt-chromium alloy and stainless steel. 20.如申請專利範圍第1項之模組臀彌補物，其中幹骨后端分段係由選自下列所構成之族群的一種材料所構成：鈦金屬合金、鈷鉻合金和不銹鋼。
- 2321. For example, the modular hip prosthesis of item 1 in the scope of patent application, wherein the rear segment of the stem has a trapezoidal frusto-conical pyramidal section integral with a generally conical section. 21.如申請專利範圍第1項之模組臀彌補物，其中幹骨后端分段具有與一個通常錐形截面成整體之梯形截頭錐形角錐截面。
- 2422. Patent application range around the hip prosthesis of the module 21, the rear end of the bone wherein the stem section has a generally trapezoidal cross-section of the compensation from a generally circular cross section. 22.如申請專利範圍第21項之模組臀彌補物，其中幹骨后端分段具有自一個通常圓形橫截面所補償之一個通常梯形橫截面。
- 2523. For example, the 21st modular hip prosthesis in the scope of the patent application, wherein the posterior segment of the bone includes an outer ring formed by a generally conical section surrounding at least a part. 23.如申請專利範圍第21項之模組臀彌補物，其中幹骨后端分段包括環繞至少一部份的通常錐形截面所形成之一個外部環。
- 2624. A modular buttocks prosthesis, comprising:a proximal segment including a neck that is locked and engageable with a front component of the femur, and the proximal segment additionally includes distal from the neck A male tapered portion extending laterally;a distal segment with a proximal end and a distal tip, the distal segment including a male tapered portion adjacent to its proximal end and a joint bone The outer surface portion;and a posterior segment of the stem bone with a proximal end and a distal end, the posterior segment of the stem bone additionally includes an axial hole passing therethrough, the axial hole including The first and second female tapered parts, the first female tapered part is positioned adjacent to the proximal end of the posterior segment of the bone, and the size is made to lockably engage the male tapered part of the proximal segment The second female conical part is positioned adjacent to the distal end of the posterior segment of the bone, and its size is made to lock the male conical part of the distal segment. 24.一種模組臀彌補物，包括：一個近側分段，該近側分段包括與一個股骨之前組成部份鎖緊可接合之頸部，該近側分段另外包括自該頸部遠側延伸之一個陽錐形部份；具有一個近側端和一個遠側尖之遠側分段，該遠側分段包括接鄰於其近側端之一個陽錐形部份及一個接合骨之外表面部份；及具有一個近側端和一個遠側端之幹骨后端分段，該幹骨后骨后端分段另外包括通經其中之一個軸向孔，該軸向孔包括第一和第二陰錐形部份，將第一陰錐形部份定位接鄰於幹骨后端分段之近側端，其大小作成可鎖緊接合近側分段之陽錐形部份，將第二陰錐形部份定位接鄰於幹骨后端分段之遠側端，其大小作成可鎖緊接合遠側分段之陽錐形部份。
- 2725. For example, the modular hip prosthesis of item 24 of the scope of patent application, wherein the proximal section additionally includes an axial hole passing through it, and the proximal section can be engaged with the proximal end of the posterior segment of the bone The axial holes formed by the proximal and the posterior segments of the bone are aligned. The distal segment additionally includes a threaded axial hole adjacent to its proximal end. The proximal end of the distal segment The distal end of the side end and the dry end segment can be engaged to align the axial holes formed by the distal and the posterior ends of the dry bone. The modular buttocks compensation additionally includes a screw whose size is made to be able to pass through. The aligned holes of the proximal, posterior, and distal segments are threadedly engaged with the threaded axial holes of the distal segment. 25.如申請專利範圍第24項之模組臀彌補物，其中近側分段另外包括通經其中之一個軸向孔，該近側分段與幹骨后端分段之近側端可接合而使通過近側和幹骨后端等分段所形成之各個軸向孔對齊，該遠側分段另外包括一個刻有螺紋之軸向孔接鄰其近側端，遠側分段之近側端與幹端分段之遠側端可接合而使通過遠側和幹骨后端等分段所形成之各個軸向孔對齊，該模組臀彌補物另外包括一個螺釘其大小作成可通經近側、幹骨后端和遠側等分段的已對齊之各孔而與遠側分段之列有螺紋之軸向孔以螺紋接合。
- 2826. For example, the modular buttocks make-up of item 24 of the scope of patent application, wherein each of the male tapered part of the proximal segment and the first female tapered part of the posterior segment of the shaft contains a mixture of a normal Conical conical section in parabolic section. 26.如申請專利範圍第24項之模組臀彌補物，其中近側分段的陽錐形部份及幹骨后端分段的第一陰錐形部份每一者包含混合入一個通常拋物線截面中之圓錐錐形截面。
- 2927. For example, the 26th module of the scope of patent application, the ratio of the length of the parabolic cone to the length of the conical cone ranges from about 5% to about 30%. 27.如申請專利範圍第26項之模組臀彌補物，其中拋物線錐形長度與圓錐錐形長度之比其範圍自大約5%至大約30%。
- 3028. For example, the 27th modular hip prosthesis of the scope of patent application, in which the tapered angles of the tapered iron surfaces of the proximal segment and the first female tapered portion of the stem rear segment range from About 1° to about 28.如申請專利範圍第27項之模組臀彌補物，其中近側分段的各圓錐錐形鐵面及幹骨后端分段之第一陰錐形部份之錐形角其範圍自大約1°至大約
- 312.5°。 2.5°。
- 3229. For example, the 24th modular hip make-up in the scope of patent application, wherein the proximal segment is composed of a material selected from the group consisting of titanium metal alloy, cobalt-chromium alloy and stainless steel. 29.如申請專利範圍第24項之模組臀彌補物，其中近側分段係由選自下列所構成之族群的一種材料所構成：鈦金屬合金、鈷鉻合金和不銹鋼。
- 3330. The modular buttocks prosthesis of item 24 of the scope of patent application, wherein the male tapered portion of the proximal segment is formed on an extension member extending from the distal side of the neck. 30.如申請專利範圍第24項之模組臀彌補物，其中將近側分段之陽錐形部份形成在自頸部遠側延伸之一個延伸構件上。
- 3431. The modular hip prosthesis of item 30 of the scope of patent application, wherein the extension member includes a threaded nipple member segmented from its distal side. 31.如申請專利範圍第30項之模組臀彌補物，其中該延伸構件包括自其遠側分段之一個螺紋接套構件。
- 3532. Such as the modular buttock prosthesis of item 24 of the scope of patent application, wherein the proximal segment has a generally circular cross section. 32.如申請專利範圍第24項之模組臀彌補物，其中近側分段具有一個通常圓形橫截面。
- 3633. For example, the modular buttocks make-up of item 24 of the scope of patent application, in which the male conical part of the distal segment and the second female conical part of the posterior segment of the shaft each contain a mixture of a normal A conical conical section in a parabolic section. 33.如申請專利範圍第24項之模組臀彌補物，其中遠側分段的陽錐形部份及幹骨后端分段之第二陰錐形部份每一者包含混合入一個通常拋物線截面中之一個圓錐錐形截面。
- 3734. For example, the 33rd modular hip make-up in the scope of the patent application, wherein the ratio of the length of the parabolic cone to the length of the conical cone ranges from about 5% to about 30%. 34.如申請專利範圍第33項之模組臀彌補物，其中拋物線錐形長度與圓錐錐形長度之比其範圍自大約5%至大約30%。
- 3835. For example, the modular hip prosthesis of item 34 of the scope of patent application, in which the conical section of the distal segment and the taper angle of the second female conical section of the posterior segment of the shaft range from approximately 1° to approximately 35.如申請專利範圍第34項之模組臀彌補物，其中遠側分段的各圓錐錐形截面及幹骨后端分段的第二陰錐形部份之錐形角其範圍自大約1°至大約
- 392.5°。 2.5°。
- 4036. The modular hip prosthesis of item 24 of the scope of patent application, wherein the surface of the joint bone of the distal segment includes a longitudinal groove formed along its incremental length. 36.如申請專利範圍第24項之模組臀彌補物，其中遠側分段的接合骨之表面包含沿著其增量長度所形成之縱向溝槽。
- 4137. Such as the modular hip prosthesis of item 24 of the scope of patent application, wherein the distal segment additionally includes a slit along the crown of its incremental length. 37.如申請專利範圍第24項之模組臀彌補物，其中遠側分段另外包含沿著其增量長度之冠的狹縫。
- 4238. For example, the modular buttocks prosthesis of item 24 of the scope of patent application, wherein the surface of the joint bone of the distal segment is selected from the group consisting of:grit blasting surface treatment, sintered metal bead coating, hydroxyl group Apatite coatings, plasma jet coatings, bio-glass ceramic coatings, demineralized bones and carriers, growth factors and carriers. 38.如申請專利範圍第24項之模組臀彌補物，其中遠側分段之接合骨之表面係選自下列所構成之族群：砂礫噴淨之表面處理、經燒結之金屬珠塗料、羥基磷灰石塗料、電漿噴射塗料、生物玻璃陶瓷塗料、脫礦質之骨和載體及生長因素和載體。
- 4339. For example, the modular buttocks make-up of item 24 of the scope of the patent application, wherein the distal segment is composed of a material selected from the group consisting of titanium metal alloy, cobalt-chromium alloy and stainless steel. 39.如申請專利範圍第24項之模組臀彌補物，其中遠側分段係由選自下列所構成之族群的一種材料所構成：鈦金屬合金、鈷鉻合金和不銹鋼。
- 4440. For example, the modular hip make-up of item 24 of the scope of patent application, wherein the back-end segment of the dry bone includes the surface of the joint bone selected from the group consisting of:grit sprayed surface, sintered metal bead coating, Hydroxyapatite coatings, plasma jet coatings, bio-glass ceramic coatings, demineralized bones and carriers, and growth factors and carriers. 40.如申請專利範圍第24項之模組臀彌補物，其中幹骨后端分段包括接合骨之表面係選自下列所構成之族群：砂礫噴淨之表面、經燒結之金屬珠塗料、羥基磷灰石塗料、電漿噴射塗料、生物玻璃陶瓷塗料、脫礦質之骨和載體及生長因素和載體。
- 4541. For example, the modular hip prosthesis of item 24 of the scope of patent application, wherein the rear end segment of the stem has a trapezoidal truncated cone-shaped pyramidal section integral with a generally conical section. 41.如申請專利範圍第24項之模組臀彌補物，其中幹骨后端分段具有與一個通常錐形截面成整體之梯形截頭錐形角錐截面。
- 4642. For example, the modular hip prosthesis of item 41 of the scope of patent application, wherein the posterior segment of the stem has a generally trapezoidal cross-section compensated by a generally circular cross-section. 42.如申請專利範圍第41項之模組臀彌補物，其中幹骨后端分段具有自一個通常圓形橫截面所補償之一個通常梯形橫截面。
- 4743. The modular buttock prosthesis of item 41 in the scope of the patent application, wherein the posterior segment of the stem includes an outer ring formed by surrounding at least a part of a generally tapered section. 43.如申請專利範圍第41項之模組臀彌補物，其中幹骨后端分段包括環繞至少一部份的通常錐形截面所形成之一個外部環。
- 4844. The 24th modular hip make-up in the scope of patent application, in which the rear segment of the stem bone is composed of a material selected from the group consisting of:titanium alloy, cobalt-chromium alloy and stainless steel. 44.申請專利範圍第24項之模組臀彌補物，其中幹骨后端分段係曲選自下列所構成之族群的一種材料所構成：鈦金屬合金、鈷鉻合金和不銹鋼。
- 4945. A modular buttocks prosthesis, comprising:a proximal section having an axial hole passing through it, the proximal section enveloping a neck that can be engaged with a front component of the femur, the proximal section The lateral section additionally includes a male tapered portion extending from the distal side of the neck;a distal section having a proximal end and a distal tip, forming the distal section and having adjacent to the proximal side An axial hole engraved with a thread at the end, and the distal segment is formed with a male tapered portion adjacent to the proximal end;the posterior end of the stem with a proximal end and a distal end Segmented, the dry end segment includes a portion of the outer surface of the joint bone, the rear end segment of the dry bone additionally includes an axial hole passing therethrough, and the axial hole includes first and second female tapered portions The first female tapered part is positioned adjacent to the proximal end of the posterior segment of the bone, and its size is made to lock the male tapered part close to the side segment, and the second female tapered part is positioned Adjacent to the distal end of the posterior segment of the stem, the size of which is made to lock the male conical section of the distal segment;and the proximal segment and the proximal end of the posterior segment of the stem can be engaged The axial holes formed by the proximal and the posterior segments of the stem are aligned, and the proximal end of the distal segment and the distal end of the posterior segment of the stem can be engaged to pass through the distal and stem The axial holes formed by the rear end and other segments are aligned;and the modular buttocks compensation additionally includes a screw whose size is made to pass through the aligned segments of the proximal, posterior, and distal segments. The hole is threadedly engaged with the threaded axial hole of the distal segment. 45.一種模組臀彌補物，包括：具有通經其中之一個軸向孔之近側分段，該近側分段包活與一個股骨之前組成部份鎖緊可接合之頸部，該近側分段另外包括自該頸部遠側延伸之一個陽錐形部份；具有一個近側端和一個遠側尖之遠側分段，形成該遠側分段而具有接鄰於其近側端之一個刻有螺紋之軸向孔，另外形成該遠側分段而具有接鄰於其近側端之一個陽錐形部份；具有一個近側端和一個遠側端之幹骨后端分段，該幹端分段包括一個接合骨之外表面部份，該幹骨后端分段另外包括通經其中之一個軸向孔，該軸向孔包括第一和第二陰錐形部份，將第一陰錐形部份定位接鄰幹骨后端分段之近側端，其大小作成可鎖緊接近側分段之陽錐形部份，將第二陰錐形部份定位接鄰於幹骨后端分段之遠側端，其大小作成來鎖緊接合遠側分段之陽錐形截面；及該近側分段與幹骨后端分段的近側端可接合而將通過近側和幹骨后端等分段所形成之各軸向孔對齊，遠側分段之近側端與幹骨后端分段的遠側端可接合而將通過遠和幹骨后端等分段所形成之各軸向孔對齊；及該模組臀彌補物另外包括一支螺釘其大小作成可通經近側、幹骨后端和遠側等分段的經對齊之各孔並與遠側分段的刻有螺紋之軸向孔以螺紋接合。
- 5046. For example, the modular hip make-up of item 45 of the scope of patent application, wherein the male cone part of the proximal segment and the first female cone part of the posterior segment of the shaft each contain a mixture of a normal A conical conical section in a parabolic section. 46.如申請專利範圍第45項之模組臀彌補物，其中近側分段之陽錐形部份和幹骨后端分段之第一陰錐形部份每一者包含混合入一個通常拋物線截面中之一個圓錐錐形截面。
- 5147. For example, the modular hip make-up of item 46 in the scope of patent application, wherein the ratio of the length of the parabolic cone to the length of the conical cone ranges from about 5% to about 30%. 47.如申請專利範圍第46項之模組臀彌補物，其中拋物線錐形長度與圓錐錐形長度之比其範圍自大約5%至大約30%。
- 5248. For example, the modular hip prosthesis of item 47 of the scope of application, wherein the conical section of the proximal segment and the taper angle of the first female cone of the posterior segment of the shaft range from approximately 1 ° to approximately 48.如申請事利範圍第47項之模組臀彌補物，其中近側分段的各圓錐截面及幹骨后端分段的第一陰錐形部份之錐形角其範圍自大約1°至大約
- 532.5°。 2.5°。
- 5449. For example, the modular hip make-up of item 45 in the scope of patent application, wherein the proximal segment is composed of a material selected from the group consisting of titanium metal alloy, cobalt-chromium alloy and stainless steel. 49.如申請專利範圍第45項之模組臀彌補物，其中近側分段係由選自下列所構成之族群的一種材料所構成：鈦金屬合金、鈷鉻合金和不銹鋼。
- 5550. The modular buttocks make-up of item 45 of the scope of patent application, wherein the male tapered portion of the proximal section is formed on an extension member extending from the far side of the neck. 50.如申請專利範圍第45項之模組臀彌補物，其中將近側分段的陽錐形部份形成在自頸部遠側延伸之一個延伸構件上。
- 5651. The modular buttock prosthesis of item 45 of the scope of patent application, wherein the extension member includes a threaded nipple member extending from its distal side. 51.如申請專利範圍第45項之模組臀彌補物，其中延伸構件包括自其遠側延伸之一個螺紋接套構件。
- 5752. For example, the modular hip prosthesis of item 45 in the scope of patent application, wherein the distal segment additionally includes longitudinal grooves along its incremental length. 52.如申請專利範圍第45項之模組臀彌補物，其中遠側分段另外包括沿著其增量長度之縱向溝槽。
- 5853. For example, the modular hip prosthesis of item 45 in the scope of patent application, wherein the distal segment additionally includes a slit along the crown of its incremental length. 53.如申請專利範圍第45項之模組臀彌補物，其中遠側分段另外包括沿著其增量長度之冠的狹縫。
- 5954. For example, the modular buttocks prosthesis of item 45 of the scope of patent application, in which the intestinal tapered part of the distal segment and the second female tapered part of the posterior segment of the shaft each contain a common Conical conical section in parabolic section. 54.如申請專利範圍第45項之模組臀彌補物，其中遠側分段之腸錐形部份及幹骨后端分段之第二陰錐形部份每一者包含混合入一個通常拋物線截面中之圓錐錐形截面。
- 6055. For example, the 54th modular hip make-up in the scope of the patent application, wherein the ratio of the length of the parabolic cone to the length of the conical cone ranges from about 5% to about 30%. 55.如申請專利範圍第54項之模組臀彌補物，其中拋物線錐形長度與圓錐錐形長度之比其範圍自大約5%至大約30%。
- 6156. For example, the modular hip prosthesis of item 55 of the scope of patent application, wherein the conical angles of the conical section of the distal segment and the second female conical section of the posterior segment of the shaft range from about 1° to About 56.如申請專利範圍第55項之模組臀彌補物，其中遠側分段的各圓錐截面及幹骨后端分段的第二陰錐形截面之錐形角其範圍自大約1°至大約
- 622.5°。 2.5°。
- 6357. For example, the modular buttocks of item 45 of the scope of patent application, wherein the distal segment is composed of a material selected from the group consisting of titanium metal alloy, cobalt-chromium alloy and stainless steel. 57.如申請專利範圍第45項之模組臀彌補物，其中遠側分段係由選自下列所構成之族群的一種材料所構成：鈦金屬合金、鈷鉻合金和不銹鋼。
- 6458. For example, the modular hip prosthesis of item 45 of the scope of patent application, wherein the distal segment includes the outer surface of the joint bone, which is selected from the group consisting of:sandblasted surface, sintered metal bead coating, Hydroxyapatite coatings, plasma jet coatings, bio-glass ceramic coatings, demineralized bones and carriers, and growth factors and carriers. 58.如申請專利範圍第45項之模組臀彌補物，其中遠側分段包括接合骨之外表面其係選自下列所構成之族群：砂礫噴淨之表面、經燒結之金屬珠塗料、羥基磷灰石塗料、電漿噴射塗料、生物玻璃陶瓷塗料、脫礦質之骨和載體及生長因素和載體。
- 6559. For example, the modular hip prosthesis of item 45 in the scope of the patent application, wherein the rear segment of the stem has a trapezoidal truncated cone section integral with a generally conical section. 59.如申請專利範圍第45項之模組臀彌補物，其中幹骨后端分段具有與一個通常錐形截面成整體之梯形截頭錐形截面。
- 6660. For example, the modular hip prosthesis of item 59 in the scope of the patent application, wherein the posterior segment of the stem has a generally trapezoidal cross-section compensated by a generally circular cross-section. 60.如申請專利範圍第59項之模組臀彌補物，其中幹骨后端分段具有自一個通常圓形橫截面所補償之一個通常梯形橫截面。
- 6761. The modular buttocks prosthesis of item 59 in the scope of the patent application, wherein the posterior segment of the stem includes an outer ring formed by surrounding at least a part of a generally conical section. 61.如申請專利範圍第59項之模組臀彌補物，其中幹骨后端分段包括環繞至少一部份之通常圓錐截面所形成之一個外部環。
- 6862. For example, the modular hip make-up of item 45 of the scope of patent application, wherein the surface of the joint bone of the rear segment of the dry bone is selected from the group consisting of:sandblasted surface, sintered metal bead coating, Hydroxyapatite coatings, plasma jet coatings, bio-glass ceramic coatings, demineralized bones and carriers, and growth factors and carriers. 62.如申請專利範圍第45項之模組臀彌補物，其中幹骨后端分段的接合骨之表面係選自下列所構成之族群：砂礫噴淨之表面、經燒結之金屬珠塗料、羥基磷灰石塗料、電漿噴射塗料、生物玻璃陶瓷塗料、脫礦質之骨和載體及生長因素和載體。
- 6963. As for the module hip make-up of item 45 in the scope of patent application, the rear segment of the dry bone is made of a material selected from the group consisting of titanium alloy, cobalt-chromium alloy and stainless steel. 63.如申請專利範圍第45項之模組臀彌補物，其中幹骨后端分段係由選自下列所構成之族群的一種材料所構成鈦金屬合金、鈷鉻合金和不銹鋼。
Independent claims69
74 paragraphs, as filed
Modular hip make up
<p>10. . . Hip make up</p><p>12. . . Proximal segment</p><p>14. . . Segmentation of the metaphysis</p><p>16. . . Distal segment</p><p>16a. . . Proximal end</p><p>16b. . . Distal tip</p><p>18. . . Engraved screw</p><p>19. . . Countersunk head</p><p>20. . . neck</p><p>twenty one. . . Angle compensation arm</p><p>twenty two. . . Male cone</p><p>twenty three. . . Lower part</p><p>twenty four. . . Extension member</p><p>25,43. . . Male cone</p><p>26. . . Conical thread socket</p><p>27. . . Segmented drilling</p><p>25a, 43a. . . Conical section of cone</p><p>25b, 43b. . . Parabolic cone section</p><p>30. . . Trapezoidal truncated cone pyramid section</p><p>31. . . Conical section</p><p>32. . . hole</p><p>32a. . . Hole section</p><p>33. . . Tapered part</p><p>33a. . . Conical section</p><p>33b. . . Conical section</p><p>34. . . Tapered part</p><p>37. . . Distal ring</p><p>40. . . Groove</p><p>41. . . Crown slit</p><p>42. . . Threaded drilling</p>
Figure 1 is an exploded perspective view of a specific embodiment of the modular buttocks of the present invention.
Figure 2 is a cross-sectional side view of a specific embodiment of the proximal component of the present invention.
Figure 3 is a cross-sectional side view of a specific embodiment of the metaphyseal component of the present invention.
Figure 4 is a transverse cross-sectional view of a specific embodiment of the metaphyseal component of the present invention taken along line AA in Figure 3.
Figure 5 is a cross-sectional side view of a specific embodiment of the distal component of the present invention.
Figure 6 is a transverse cross-sectional view of the specific embodiment of the distal component of the present invention taken along the line BB in Figure 5.
Figure 7 is a cross-sectional side view of the proximal, metaphyseal, and distal components of a specific embodiment of the modular hip prosthesis of the present invention.
Figure 8 is a cross-sectional side view of the proximal, metaphyseal, and distal components of Figure 7: the cone and blend dimensions are illustrated.
Background and overview of the present invention
The present invention generally relates to the field of total hip arthroplasty. More specifically, it relates to the three-segmented modular hip shaft which allows full-size interchangeability between the components, and also provides information on the components during use. Excellent resistance to relief.
The modularity of the overall hip arthroplasty design is an evolutionary concept, which is getting more citations in the clinical literature. The advantages of these systems include the flexibility of the isolation scaffold in order to customize the filling of the proximal and distal tubes and to accommodate difficult situations of proximal deformation and bone loss. However, these designs cause various problems including structural "compromises" in the metal-to-metal interconnection due to stress and separation between components.
In order to solve these problems, in general, the present invention provides a modular hip prosthesis comprising the following components: (a) a proximal section with an axial hole passing through it, the proximal section including the front part of the femur The component part can be locked to a neck, and additionally includes a male conical part extending from the distal side of the neck; (b) a distal segment with a proximal end and a distal tip, and The distal segment is formed to have a male tapered portion adjacent to its proximal end and (c) a segment of the metaphysis having a proximal end and a distal end, and the segment of the metaphysis includes a Part of the outer surface of the joint bone, and additionally includes an axial hole passing through it. The axial hole includes first and second female tapered portions. The first female tapered portion is located adjacent to the metaphysis. The proximal end of the segment is dimensionally configured to lock the male tapered part of the proximal segment, and the second female tapered part is located at the distal end of the segment adjacent to the metaphysis and is dimensioned It is configured to tightly engage the male tapered portion of the distal segment.
The corresponding proximal, metaphyseal, and distal male and female tapered sections each contain a tapered section mixed into the usual parabolic section. The mixed conical cone/parabolic cone geometry of each cone part ensures sufficient cone contact area. And reduce the contact stress of the interface and the internal body stress under the bending load at the male/female tapered junction. Each of the tapered portions of each cone has a range from approximately 1. Up to a taper angle of approximately 2.5° to provide enhanced torsion resistance at the taper connection. The proximal section and the proximal end of the metaphyseal section can be locked in engagement to align the axial holes formed by the proximal and metaphyseal sections. The proximal end of the distal segment and the distal end of the metaphyseal segment can be locked into engagement to align the axial holes formed by the distal and stem segments.
If necessary, a through hole is formed in the proximal section, and the distal section is formed with a threaded hole adjacent to the proximal end. These holes can be aligned with the axial holes of the metaphysis. If necessary, a screw (with a configuration size that can pass through the aligned holes) can be threadedly engaged with the threaded hole formed in the distal section to further strengthen the lock of each component assembly. Tightly engaged.
The present invention provides the following advantages: (a) by increasing the taper contact area and reducing the contact stress due to bending and torsional load at the taper connection, it has excellent resistance to component separation; (b) through Its modular flexibility during the operation; (c) the complete interchangeability of any segment with any other segment; (d) the adjustability of each segment to facilitate forward and backward rotation and position with other segments It is irrelevant, so it allows a common design suitable for left and right hip applications; (e) Independent selection of the length and compensation of the stent of the supplement; (f) Main and corrective applications using the same system; (g) Allows surgeons to modify the equipment to suit the disease The patients anatomy even faces corrective surgery that may leave a bone shortage; and (h) Use all specimens and sizes of the anterior femoral component.
The accompanying drawings incorporated into this specification and forming a part thereof illustrate the detailed description and preferred specific embodiments of the present invention, and together with the detailed description serve to explain the principle of the present invention. However, it should be understood that both the drawing and the description are only examples and do not limit the present invention.
Schematic description
Figure 1 is an exploded perspective view of a specific embodiment of the modular buttocks of the present invention.
Figure 2 is a cross-sectional side view of a specific embodiment of the proximal component of the present invention.
Figure 3 is a cross-sectional side view of a specific embodiment of the metaphyseal component of the present invention.
Figure 4 is a transverse cross-sectional view of a specific embodiment of the metaphyseal component of the present invention taken along line AA in Figure 3.
Figure 5 is a cross-sectional side view of a specific embodiment of the distal component of the present invention.
Figure 6 is a transverse cross-sectional view of the specific embodiment of the distal component of the present invention taken along the line BB in Figure 5.
Figure 7 is a cross-sectional side view of the proximal, metaphyseal, and distal components of a specific embodiment of the modular hip prosthesis of the present invention.
Figure 8 is a cross-sectional side view of the proximal, metaphyseal, and distal components of Figure 7: the cone and blend dimensions are illustrated.
Detailed description of the invention
Referring now to FIGS. 1-8, the same reference numerals are used to indicate the same components throughout the drawings. The first embodiment of the modular buttocks of the present invention is generally represented by the numeral 10. As shown in Figure 1, the hip prosthesis 10 generally includes: (a) a proximal section 12; (b) a metaphyseal section 14 and a distal section 16. Optionally, a threaded screw 18 can be used to reinforce the locking engagement of the respective segments 12, 14 and 16 as follows. As specifically represented here, each of the proximal section 12, the metaphyseal section 14 and the distal section 16 is constituted as a separate component. As a result, each segment can be sized independently of each other. This independent sizing ability creates the modularity of the prosthesis: it provides the surgeon with a wide selection of prosthesis configurations to adapt to virtually every vascular anastomosis situation encountered in the surgical operating room. Advantageously, the modular prosthesis 10 of the present invention can be implanted using the well-known bone glue implantation technique, or in another method, can be used in a non-glued mode, which is well-known to those skilled in the art The bone joint surface should be implanted using the method.
Referring now to Figure 2, the proximal section 12 includes a neck section 20 formed by the following three components (a), (b), (c): (a) The terminal ends in an angular direction of the male conical column 22 Compensating arm 21; (b) an extension member 24 extending distally of the neck 20 formed by a male tapered portion 25 and terminating in a cylindrical threaded nipple 26; and (c) passing through the neck 20, The segmented bore 27 formed by the extension member 24 and the threaded socket 26. The proximal section 12 is preferably composed of a biocompatible high-strength titanium alloy. However, the proximal section 12 can be constructed from other biocompatible materials such as cobalt-chromium alloy, stainless steel, and composite materials. It is advisable to polish the outer surface of the proximal segment 12 to have an average surface roughness of 32 microinches or less, as measured by a surface profile tester. The surface treatment of the external surface may also be smooth and matt or the mechanism may be made using surface preparation techniques well known in the art.
The tapered post 22 of the proximal section 12 is configured so as to lock into engagement with the complementary female tapered portion (not shown) of the front end component of the femur. Those skilled in the art can easily recognize that the proximal segment 12 can be constructed to adapt to all the styles and materials of the front end of the femur. A lower recess 23 is formed in each upper arm 21 and post 22 of the proximal segment 12 to increase the range of movement between the neck 20 and the acetabular component of the entire hip joint replacement system, and to facilitate A removal tool (not shown) for joining the anterior part of the femur is used when the anterior part of the femur must be detached from the proximal segment 12 during repair or correction of the hip prosthesis 10.
As a preferred embodiment, the tapered portion 25 of the extension member 24 includes a male tapered section 25a (with a mixing radius of about 0.25 inches) mixed into a generally parabolic-shaped male tapered section 25b, see section 2 and 8). The parabolic geometry of the tapered section 25b reduces the contact stress of the interface and the internal body stress under bending load between the tapered section 25 and the complementary female tapered section 33 of the metaphyseal section 14 (described below). As a preferred embodiment, the tapered section 25a has a tapered angle ranging from about 1° to about 2.5° to provide enhanced torsion resistance at the tapered junction of the proximal/metaphysis. In the illustrated embodiment of the invention shown in Figure 8, the tapered tapered section 25a has a length of about 0.43 inches and the parabolic tapered section 25b has a length of about 0.09 inches. Regarding these examples of tapered length, the ratio of parabolic tapered length: conical tapered length is about 21%. As a preferred embodiment, the parabolic cone/cone length ratio should range from about 5% to about 30%. This range guarantees a sufficient conical contact area and minimizes the sharp corners present on the parabolic conical section 25b. When the compensation is subjected to bending stress, it can cause high-point contact stress at the proximal/metaphysis On the conical connection. As a preferred embodiment, the conical tapered section 25a has a mixing radius R1 of about 0.09 inches (see Figure 8). The complementary tapered section 33a of the female tapered section 33 has a mixing radius R3 of approximately 0.05 inches. These different radii create a reduced stress condition at the proximal/metaphyseal conical junction adjacent to the gap G (see figure 7). This gap G should be used to join the proximal segment and the metaphyseal segment. Caused by time. Advantageously, the same geometry and radius of the tapered parts 25 and 33 can be used for all sizes of the proximal section 12 and the metaphyseal section 14, thereby increasing the interchangeability of the sizes and therefore the proximal section and the metaphysis Modularity between end segments.
As a preferred embodiment, the threaded nipple 26 has a length of about 0.18 inches to increase the moment arm of the extension member 24 (see Figs. 2 and 8), thereby inducing bending stress into the compensation material, assisting the proximal/dry Unload the load at the conical connection of the epiphysis. Regarding the above-mentioned tapered geometry and mixing radius, the same length of the threaded nipple 26 for all sizes of the proximal section 12 can be used. The upper configuration of the threaded sleeve 26 is smaller than the diameter of the cross-sections 32a, 32b and 32c of the through holes 32 in the metaphyseal section 14 (below) in order to be used when combining the compensation components (see Fig. 7) (Discussed below), when the extension member 24 of the proximal section 12 is slidably received in the encounter hole 32, the threaded nipple 26 will not initially engage the side wall of the hole 32. When a sufficient load is applied to the tip of the femur (not shown in the figure) of the prosthesis, the threaded nipple 26 can contact the side wall of the middle hole section 32b of the hole 32 and thereby transfer a portion of the induced bending stress away from the proximal side / Conical junction of the metaphysis.
Referring again to Figure 2, the segmented hole 27 of the proximal segment 12 includes a first straight section 27a, a tapered middle section 27b and a second straight section 27c. As a better embodiment, the section 27b is approximately 60. One of the angles tapers inwardly toward the hole section 27c. The size of each hole section 27a, 27b and 27c is made to allow the screw 18 to pass through the proximal section 12. The hole section 27a is also used as a hole for the head of the screw 18 and should be sized to be large enough to easily accommodate a mechanical driver such as a screwdriver or a drill bit. When the screw 18 is used as part of the assembly 10 , Comes with a threaded engagement screw 18 and a threaded hole 42 formed in the proximal section 16 (discussed in detail below).
Referring now to FIG. 3, the metaphyseal segment 14 has a proximal end 14 and a distal end 14b and is configured to have a trapezoidal truncated cone-shaped pyramidal section 30 integral with the tapered section 31. As shown in Figure 4, this profile presents itself as a generally trapezoidal cross-section 36 divided from a generally circular cross-section 35 in cross-section. Alternatively, the pyramidal section 30 may be constructed so that the metaphyseal section 14 has a generally rectangular cross-section from the generally circular cross-section. The metaphyseal segment 14 is preferably composed of biocompatible high-strength titanium alloys, but can also be composed of other biocompatible materials such as cobalt-chromium alloys, stainless steel, and composite materials.
The metaphyseal section 14 also includes a bore 32 containing a proximal bore section 32a, a middle bore section 32b, and a distal bore section 32c. Referring to Figures 3 and 8, the hole segment 32a is formed to have a female tapered portion 33 including a conical tapered section 33 mixed into a generally parabolic tapered section 33b. <sub>a</sub> . The female tapered sections 33a and 33b are complementary to the male tapered sections 25a and 25b of the cylindrical section 24, respectively. As embodied here, the conical tapered section 33a has a range from approximately one. To about 2,5. The taper angle is approximately 0.50 inches in length and approximately 0.05 inches in mixing radius R3 (above). The parabolic tapered section 33b has a length of about 0.09 inches and a mixing radius R4 of about 0.25 inches (see Figure 8). Regarding the tapered length exemplified above, the ratio of parabolic tapered length: conical tapered length is about 18%. When the tapered cross-sections 33a and 33b are made to fit into the cylindrical cross-section 24 into the hole 32, the tapered cross-sections 25a and 25b are locked and engaged respectively. Regarding the tapered sections 25a and 25b of the cylindrical section 24, the parabolic taper/conical taper length ratio of the tapered sections 33a and 33b should range from about 5% to about 30% to ensure the reduction of contact stress and proximal/ Internal stress in the area of the conical junction of the metaphysis. Also, as discussed above with respect to the proximal section 12, the same tapered geometry of the tapered sections 33a and 33b and the mixed radius of the metaphyseal section 14 of all sizes can be used to reinforce the respective components of the proximal and stem ends. By means of the interchangeability of the shares, the modularity of the material 10 is compensated.
Referring again to Figures 3 and 8, the hole section 32 forming the hole 32 of the metaphysis <sub>c</sub> The tapered portion 34 includes a conical tapered section 34a and a generally parabolic tapered section 34b. The tapered sections 34a and 34b are sized to fit the proximal end 16a of the distal segment 16 into the hole 32 of the metaphyseal segment 14 when lockingly engages the corresponding male cone of the respective distal segment 16 Shaped sections 43a and 43b (discussed more fully below). As a concrete expression in this article, the conical tapered section 34a has a length of about 0.51 inches, ranging from about 1. To about 2.5. The taper angle and the mixing radius R5 of about 0.5 inches. The parabolic tapered section 34b has a length of about 0,09 inches and a mixing radius R6 of about 0.25 inches (see Figure 8). Regarding the tapered length exemplified above, the ratio of the parabolic tapered length: the conical tapered length is about 18%. Regarding the other tapered parts of the make-up 10 discussed above, the tapered length ratio of the parabolic tapered/conical shape should range from about 5% to about 30% to ensure sufficient tapered contact area and near side/dry The high-point contact stress of the conical connection of the epiphysis is minimized. In addition, with regard to the other tapered parts mentioned above, the same tapered geometry and mixing radius of the tapered sections 34a and 34b can be used in all sizes of the metaphyseal section 14 to enhance the interchangeability of the components and thereby compensate 10 modularity.
The geometry of the segment 14 of the metaphysis increases the torsional stability of the component during use in the body and provides a better filling of the proximal intramedullary tube. The outer surface of the segment 14 of the metaphysis can be finished and polished to have an average surface roughness of about 32 microinches or less. As measured by the surface shape tester. The finishing of the outer surface may also be smooth and matt or be made using surface preparation techniques that are well known in the art. As a preferred embodiment, the outer surface of the segment 14 of the metaphysis contains a surface coating for bonding bones, for example, a grit sprayed surface; plasma spray coating, sintered metal bead coating, and hydroxyapatite coating , Or other biologically active coatings such as biological glass ceramics, demineralized bones and carriers, and growth factors and carriers. The application of these coatings to the surface of metal implants is well known in the art. If necessary, the segment 14 of the metaphysis can be constructed to have a distal ring 37. The distal ring 37 is an area of raised material whose thickness is equal to the minimum thickness of the joint bone paint applied to the outer surface of the metaphyseal segment. The distal ring 37 increases the wall thickness of the conical section 31 of the metaphyseal section 14. This phenomenon can also increase the fatigue strength of the conical section 31 by increasing the local wall thickness and shielding it from dents (which may result from the porous coating process). As a better performance, the distal ring 37 should be used in the smaller-sized metaphyseal segment 14, wherein the sidewall of the conical section 31 near the distal end 14b may be quite thin. The degree of local stress on the conical section 31 (which may be necessary for the distal ring 37 of the metaphyseal section 14 of a special size) can be easily determined by a person skilled in the art.
Turning now to Figure 5, the distal segment 16 is formed and has a distal end 16a <sub>，</sub> A distal tip 16b and includes a number of sharp longitudinal grooves 40 formed along an incremental length of its outer surface. The apical edge of the groove 40 penetrates into the cortical bone wall of the inner spinal canal to increase the torsional stability of the distal segment 16 during the use of the prosthesis in the body. Optionally, the distal segment 16 is formed to have a slit 41 of the crown starting at the distal tip 16 and proceed to its incremental length proximally. The slit 41 of the crown increases the flexibility of the distal section 16. This increased bending restraint: the strength of the stress on the distal tip 16b when the compensation is loaded, and allows the compensation to better adapt to the curvature of the inner spinal canal. Those skilled in the art should recognize that the hip plan can be designed according to the entire replenishment as needed, and the length of the longitudinal groove 40 can be easily adjusted to facilitate the resistance to the torsional load on the replenishment. In the illustrated embodiment of the distal section 16 shown in each figure, the length of the longitudinal groove 40 is approximately 80% of the entire length of the distal section 16. Advantageously, the length of the groove can be used: the same ratio of the length of the distal section to the distal section 16 of all sizes. Those skilled in the art should also recognize that the length of the slit 41 of the crown can be easily adjusted to provide the required degree of curvature in the distal section 16 without excessively "compromising" the fatigue strength of the distal section.
As a preferred embodiment, the distal tip 16b has a generally parabolic axial cross-section, which also serves to reduce the contact stress between the distal segment 16 and the bone near the distal tip. As shown in Figure 6, the distal segment 16 has a generally round cross-section, but it can also be constructed with other cross-sectional geometry, for example, a hexagonal shape or an elliptical shape. If necessary, the distal segment 16 can be formed to have longitudinal passages instead of pointed longitudinal grooves to facilitate the increased trunk curvature and the bonding of the cortical bone in the inner spinal canal. Although the distal segment 16 shown in each figure has a straight profile, it can also be bent to better match the natural curvature of the patient's spinal cord. The distal section 16 is preferably composed of a biocompatible high-strength titanium alloy, but can also be composed of other biocompatible materials such as cobalt-chromium alloy, stainless steel, and composite materials. In addition, it is advisable to provide the distal segment 16, a polished outer surface finish (which has an average surface roughness of 32 microinches or less as measured by a profile tester). It is also possible to provide distal segmentation, a smooth matte surface or use the well-known surface preparation techniques in the art to make the mechanism. In order to facilitate the fixation of the distal section 16 to the cortical bone wall of the inner spinal canal, if necessary, the distal section 16 can also be constructed without longitudinal grooves instead of a porous bone-bonded surface coating, for example, gravel Spray clean surface; plasma spray coating, sintered suitable bead coating, hydroxyapatite coating or other biologically active coatings such as bio-glass ceramics, demineralized bones and carriers, growth factors and carriers.
Referring now to Figures 5 and 8, it is also formed that the distal section 16 has a threaded bore 42 adjacent to its proximal end 16a. The holes 42 are configured so as to be inserted through the aligned holes of the proximal section 12, the metaphyseal section 14 and the distal section 16 by threading the screw 18 (see discussion below). It is also formed that the distal section 16 has a male tapered portion 43 adjacent to the side end 16a. The conical section 43 includes a conical conical section 43a and a generally parabolic conical section 43b. The size of the male conical sections 43a and 43b is made so that when the proximal end 16a of the distal section 16 is inserted into the hole 32 of the metaphyseal section 14, the respective corresponding ones of the metaphyseal section 14 are locked and engaged. Female tapered sections 34a and 34b. As a concrete expression here, the conical cone section 43a has a length of about 0.48 inches, a taper angle ranging from about 1° to about 2.5°, and a mixing radius R7 of about 0.09 inches. The parabolic tapered section 43b has a length of about 0.09 inches and a mixing radius R8 of about 0.25 inches (see Figure 8). Regarding the tapered length exemplified above, the ratio of parabolic tapered length: conical tapered length is about 19%. The parabolic/conical taper length ratio should range from about 5% to about 30% to ensure a sufficient taper contact area and minimize the high-point contact stress at the dry end/distal taper connection. In addition, regarding the other tapered parts mentioned above, the same tapered geometry and mixing radius of the tapered sections 43a and 43b can be used for all sizes of the distal segment 16 to enhance the interchangeability of the components of the distal and metaphysis. In this way, the modularity of the object 10 is compensated.
Referring now to Figures 7 and 8, cross-sectional views of the proximal section 12, the metaphyseal section 14 and the distal section 16 are shown to more clearly illustrate the internal relationship between these components when combined. As shown in the figures, the extension member 24 of the proximal section 12 is received in the hole section 32a of the metaphyseal section 14 in a tight-fitting sliding relationship, and the tapered sections 25a and 25b of the extension portion 24 are respectively and The tapered sections 33a and 33b of the hole section 32a are locked in engagement. Similarly, the proximal end 16a of the distal section 16 is accommodated in the hole section 32c of the metaphyseal section 14 in a tight-fitting sliding relationship, and the tapered sections 43a and 43b of the distal section 16 are respectively and The tapered sections 34a and 34b of the hole section 32c are locked in engagement. Before the conical locking relationship is established between the proximal section 12 and the metaphyseal section 14, the angular orientation of the arm 21 and the post 22 of the proximal section 12 is established to place the post 22 in the desired position. Accept the anterior part of the femur (not shown in the picture). When the complementary tapered portions of the proximal, metaphyseal and distal segments are locked together, the holes 27, 32, and 42 will be axially aligned. Thus, the screw pin 18 is inserted through the aligned holes to be threadedly engaged with the complementary threaded cross-section of the hole 42. The screw 18 has a countersunk head 19 and can be received in a countersunk hole 28 formed in the cross section 27a of the hole 27 in the metaphysis. If it is necessary to tighten the screw 18 to further strengthen the locking joint of the proximal, metaphyseal and distal segments.
As long as it does not deviate from the gist or basic characteristics of the present invention, the present invention can be embodied in other forms than those disclosed in the detailed description of the present invention. Therefore, in all aspects, the specific embodiments of the present invention described are regarded as illustrative rather than restrictive. Therefore, the scope of the present invention is indicated by the scope of patent application specified below, rather than through all the aforementioned changes of the invention (which form the subject of the scope of patent application). The meaning and scope of synonymous terms are considered to be included in the application Within the scope of the patent.
Symbol description of main components
10. . . Hip make up
12. . . Proximal segment
14. . . Segmentation of the metaphysis
16. . . Distal segment
16a. . . Proximal end
16b. . . Distal tip
18. . . Engraved screw
19. . . Countersunk head
20. . . neck
twenty one. . . Angle compensation arm
twenty two. . . Male cone
twenty three. . . Lower part
twenty four. . . Extension member
25,43. . . Male cone
26. . . Conical thread socket
27. . . Segmented drilling
25a, 43a. . . Conical section of cone
25b, 43b. . . Parabolic cone section
30. . . Trapezoidal truncated cone pyramid section
31. . . Conical section
32. . . hole
32a. . . Hole section
33. . . Tapered part
33a. . . Conical section
33b. . . Conical section
34. . . Tapered part
37. . . Distal ring
40. . . Groove
41. . . Crown slit
42. . . Threaded drilling
50 members in 13 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 09524341 | United States of America | – | |
| 52434100 | United States of America | A | |
| 52434100 | United States of America | A | |
| 20000524341 | – | – | – |
| US20000524341 | – | – | – |
Members50
| Document | Office | Kind | |
|---|---|---|---|
| CA2374072A1 | Canada | A1 | |
| WO0167997A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU4567701A | Australia | A | |
| WO0171572A2 | World Intellectual Property Organization (WIPO) | A2 | |
| AU4778901A | Australia | A | |
| US6319286B1 | United States of America | B1 | |
| US2001054020A1 | United States of America | A1 | |
| US2002038148A1 | United States of America | A1 | |
| EP1191906A1 | European Patent Office (EPO) | A1 | |
| TW487568BThis record | Taiwan Province of China | B | |
| CN1366457A | China | A | |
| HK1048584A1 | Hong Kong, China | A1 | |
| EP1191906A4 | European Patent Office (EPO) | A4 | |
| JP2003526454A | Japan | A | |
| WO0171572A3 | World Intellectual Property Organization (WIPO) | A3 | |
| AU771968B2 | Australia | B2 | |
| EP1428142A2 | European Patent Office (EPO) | A2 | |
| US2005010567A1 | United States of America | A1 | |
| CN1203819C | China | C | |
| US6911048B2 | United States of America | B2 | |
| EP1191906B1 | European Patent Office (EPO) | B1 | |
| AT298547T | Austria | T | |
| ATE298547T1 | Austria | T1 | |
| DE60111703D1 | Germany | D1 | |
| ES2240435T3 | Spain | T3 | |
| US2005234559A1 | United States of America | A1 | |
| US2005234853A1 | United States of America | A1 | |
| PT1191906E | Portugal | E | |
| US2005251497A1 | United States of America | A1 | |
| US2005262064A1 | United States of America | A1 | |
| US2005262065A1 | United States of America | A1 | |
| DE60111703T2 | Germany | T2 | |
| HK1048584B | Hong Kong, China | B | |
| US2006080297A1 | United States of America | A1 | |
| US2006080298A1 | United States of America | A1 | |
| US2006123012A1 | United States of America | A1 | |
| US2006190308A1 | United States of America | A1 | |
| JP3834510B2 | Japan | B2 | |
| US2008033770A1 | United States of America | A1 | |
| US7349894B2 | United States of America | B2 | |
| CA2374072C | Canada | C | |
| US7483883B2 | United States of America | B2 | |
| US7627606B2 | United States of America | B2 | |
| US7668811B2 | United States of America | B2 | |
| US7774331B2 | United States of America | B2 | |
| US2010268623A1 | United States of America | A1 | |
| US2012179578A1 | United States of America | A1 | |
| US8458162B2 | United States of America | B2 | |
| US2013246103A1 | United States of America | A1 | |
| US8738599B2 | United States of America | B2 |
2 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Annulment or lapse of patent due to non-payment of feesLapsedMM4A | MM4A | |
| Issue of patent certificate for granted invention patentGrantedGD4A | GD4A |
Numbers
- Publication
- 487568
- Publication, DOCDB
- 487568
- Publication, EPODOC
- TW487568B
- Application
- 90105689
- Application, DOCDB
- 90105689
- Application, EPODOC
- TW200190105689
Titles5
- Chinese
- 模組臀彌補物
- English
- Modular Hip Prosthesis
- English
- Modular hip make up
- Unlabeled
- 模組臀彌補物
- Unlabeled
- Modular hip make up
Classification
- CPC, 31
- A61F2/30734
- A61F2/30767
- A61F2/36
- A61F2/3609
- A61F2/367
- A61F2/3676
- A61F2002/30224
- A61F2002/30332
- A61F2002/30604
- A61F2002/30738
- A61F2002/30797
- A61F2002/30827
- A61F2002/30879
- A61F2002/30891
- A61F2002/30906
- A61F2002/3625
- A61F2002/365
- A61F2002/3652
- A61F2002/3674
- A61F2220/0033
- A61F2220/0041
- A61F2230/0069
- A61F2310/00017
- A61F2310/00023
- A61F2310/00029
- A61F2310/00796
- A61F2310/00928
- A61F2002/30339
- A61F2002/30433
- A61F2002/3054
- A61F2002/30594
- IPC, 4
- A61F2 00
- A61F2 30
- A61F2 28
- A61F2 36