Subcutaneous infusion device

The present invention relates to a subcutaneous injector, and more particularly to a subcutaneous injector for injecting a drug solution into the wearer's body.

For example, a subcutaneous injector used for continuous subcutaneous insulin infusion (CSII) has been conventionally known. Specific examples include, for example, U.S. Patent No. 6926694 (Patent Document 1), U.S. Patent Application Publication No. 2002/0173769 (Patent Document 2), and U.S. Patent Application Publication No. 2006/0276760 (Patent Document 1). Examples include those described in Document 3).

The above-mentioned continuous subcutaneous injection method of insulin is a medical practice for constantly injecting insulin by indwelling an indwelling needle subcutaneously to accurately control the blood glucose level. However, in the patient's daily life (for example, bathing or exercising), the infusion line of the subcutaneous injector tends to be an obstacle, which tends to reduce the convenience of the patient's life. Therefore, in recent years, the infusion line has been made removable, and a mechanism has been provided in which only the minimum number of parts necessary for injecting a drug solution is placed on the skin.

Usually, the removable mechanism means a connecting mechanism and a separating mechanism between a part to be indwelled on the skin (indwelling member) and a part from the pump to the indwelling member (connecting member) when the infusion line is separated. However, these two mechanisms allow the indwelling member and the connecting member to be connected and separated as many times as necessary.<patcit num="1"><text>U.S. Pat. No. 6926694</text></patcit><patcit num="2"><text>U.S. Patent Application Publication No. 2002/0173769</text></patcit><patcit num="3"><text>U.S. Patent Application Publication No. 2006/0276760</text></patcit>

<p> As described above, in the subcutaneous injector that repeatedly connects and separates the indwelling member and the connecting member, the puncture portion (the portion through which the needle of the connecting member is passed) in the indwelling member is disinfected before the connecting member is attached to the indwelling member. There is a need.</p><p> However, the subcutaneous injectors described in Patent Documents 1 and 2 have a problem that it is difficult to perform disinfection work before attaching the connecting member because the punctured portion of the indwelling member is located at a deep position. Further, since the direction in which the connecting member is attached is limited, it may be difficult to attach the connecting member.</p><p> On the other hand, in the subcutaneous injector described in Patent Document 3, since the puncture portion is exposed to the outside, disinfection work can be easily performed as compared with the subcutaneous injector described in Patent Documents 1 and 2, but the connecting member can be used. Since the mounting direction is limited to the direction from above to the body surface, it may be difficult to mount the connecting member as in the case of Patent Documents 1 and 2.</p><p> The present invention has been made in view of the above problems, and an object of the present invention is to facilitate disinfection work before attaching the chemical solution supply unit to the indwelling member and to perform high-quality hygiene management. It is an object of the present invention to provide a subcutaneous injector which can be easily attached to a drug solution supply unit.</p>

<p> The subcutaneous injector according to the present invention is a subcutaneous injector for injecting a drug solution into the wearer's body, and has a base portion that can be fixed to the wearer's body surface, and the base portion is fixed to the wearer's body surface. It is provided with an indwelling member having a drug solution passage that reaches the wearer's body when the injection is performed, a partition wall portion that defines the drug solution passage, and a locking portion that locks the partition wall portion on the base portion, and the partition wall portion is needle-shaped. The puncture portion includes a puncture portion into which the chemical liquid supply portion is inserted, and the puncture portion is formed so as to project upward from the locking portion when the chemical liquid supply portion is removed from the indwelling member. In the specification of the present application, "upper" means a direction away from the wearer's body surface.</p><p> According to the above configuration, since the puncture portion protrudes above the locking portion when the chemical solution supply portion is removed from the indwelling member, disinfection work before attaching the chemical solution supply portion to the indwelling member can be easily performed. Can be done. Further, the chemical solution supply unit can be attached from either the upper direction or the lateral direction. As a result, a subcutaneous injector is provided in which hygiene management is easy and the chemical solution supply unit is easy to attach.</p><p> The subcutaneous injector preferably further comprises a connecting member. The connecting member includes the chemical solution supply portion, and is detachably attached to the indwelling member by sliding and moving along the extending direction of the base portion of the indwelling member. The connecting member further includes a pressing portion that presses the partition wall portion when the connecting member is attached to the indwelling member.</p><p> According to the above configuration, even when a relatively soft material is used for the partition wall, after the connecting member is attached to the indwelling member, the partition wall is compressed by the pressing portion and the needle-shaped chemical supply portion is pierced. The area around the part can be reliably closed. Therefore, it is possible to easily achieve both lowering the puncture resistance and increasing the airtightness of the puncture portion.</p><p> The subcutaneous injector is preferably fixed to the connecting member and further includes a cover member formed so as to cover the chemical solution supply portion when the connecting member is removed from the indwelling member, and the cover member is connected to the indwelling member. When the cover member is attached, the cover member abuts on the indwelling member and receives a compressive force to contract in the axial direction, and the chemical solution supply portion is formed so as to penetrate the cover member and the puncture portion and communicate with the chemical solution passage. There is.</p><p> According to the above configuration, by providing a cover member formed so as to cover the chemical solution supply unit when the connecting member is removed from the indwelling member, hygiene management of the chemical solution supply unit becomes easy. As a result, a subcutaneous injector for easier hygiene management is provided.</p><p> In the subcutaneous injector, preferably, the puncture portion of the indwelling member has a self-occluding property that can close the hole formed by the penetration of the drug solution supply portion when the connecting member is removed from the indwelling member.</p><p> According to the above configuration, the hole formed by the penetration of the chemical solution supply portion can be closed by the self-closing property of the puncture portion, so that the chemical solution passage inside the partition wall when the connecting member is removed from the indwelling member can be closed. Hygiene management is easy.</p><p> The subcutaneous injector is preferably used for continuous insulin subcutaneous injection.</p>

<p> According to the present invention, in the subcutaneous injector, the disinfection work before attaching the chemical solution supply unit to the indwelling member can be facilitated, and the attachment of the chemical solution supply unit can be facilitated.</p>

Hereinafter, embodiments of the present invention will be described. In some cases, the same or corresponding parts are designated by the same reference numerals, and the description thereof may not be repeated.

In the embodiments described below, when the number, quantity, etc. are referred to, the scope of the present invention is not necessarily limited to the number, quantity, etc., unless otherwise specified. Further, in the following embodiments, each component is not necessarily essential for the present invention unless otherwise specified. Further, when there are a plurality of embodiments below, it is planned from the beginning that the configurations of the respective embodiments are appropriately combined unless otherwise specified.

(Embodiment 1) FIG. 1 is a perspective view showing a state before the connecting member of the subcutaneous injector according to the first embodiment is attached to the indwelling member. Further, FIG. 2 is a perspective view showing a state in which the connecting member of the subcutaneous injector is attached to the indwelling member.

With reference to FIGS. 1 and 2, the subcutaneous injector according to the present embodiment is used in the continuous insulin subcutaneous injection method (CSII), and includes an indwelling member 10 and a connecting member 20. Will be done. The indwelling member 10 is a member for indwelling on the body surface of the patient when performing the continuous subcutaneous injection of insulin. The connecting member 20 is a member for being attached to and detached from the indwelling member 10 as needed. That is, when insulin is injected subcutaneously, the connecting member 20 is connected to the indwelling member 10, and when the insulin injection is interrupted (for example, when taking a bath), the connecting member 20 is separated from the indwelling member 10. Insulin.

The connecting member 20 includes a main body portion 21, a lid portion 22 rotatably provided with respect to the main body portion 21, an infusion line 23, and a connector 24. After sliding the main body portion 21 and the lid portion 22 of the connecting member 20 in the direction of the arrow DR20 (direction along the body surface of the patient), the lid portion 22 of the connecting member 20 is rotated in the direction of the arrow DR22 to obtain the patient. The connecting member 20 is attached to the indwelling portion 10 fixed to the body surface. The connector 24 is connected to a pump (not shown) that supplies the chemical solution. The drug solution supplied from the pump (not shown) to the infusion line 23 via the connector 24 is guided into the patient's body through the drug solution passage in the main body portion 21 and the drug solution passage in the indwelling member 10.

3 and 4 are a sectional view taken along line III-III in FIG. 1 and a sectional view taken along line IV-IV in FIG. 2, respectively.

With reference to FIGS. 3 and 4, the indwelling member 10 includes a base portion 11, a cannula 12, a partition wall portion 13, and a locking portion 14. The indwelling member 10 is fixed at a predetermined position (lower abdomen, buttocks, etc.) on the patient's body surface using, for example, an instrument called an inserter equipped with a needle for subcutaneous introduction, but is introduced subcutaneously without using an inserter. It may be fixed using a needle for fixing. When the indwelling member 10 is fixed to the patient's body surface, the cannula 12 reaches the patient's body. An adhesive layer (not shown) made of, for example, a non-woven fabric is provided on the lower surface of the base portion 11, and the indwelling member 10 is fixed to the patient's body surface by the adhesive layer. The partition wall portion 13 and the locking portion 14 are provided on the base portion 11. The locking portion 14 locks the partition wall portion 13 on the base portion 11. The partition wall portion 13 is provided so that a part thereof protrudes from the locking portion 14.

The connecting member 20 further includes a bottomed tubular needle cover 20A and a hollow needle 20B, in addition to the main body portion 21, lid portion 22, infusion line 23, and connector 24 described above. One end side of the needle cover 20A is fixed to the main body portion 21, and the other end side is a free end. Further, the drug solution is supplied to the needle 20B from the infusion line 23.

As shown in FIG. 3, the needle 20B is housed in the needle cover 20A before the connecting member 20 is attached to the indwelling member 10. On the other hand, when the connecting member 20 is attached to the indwelling member 10, the needle cover 20A abuts on the partition wall portion 13 and is compressed and deformed, and the needle 20B penetrates the needle cover 20A and the partition wall portion 13. As a result, the needle 20B and the cannula 12 communicate with each other, and the drug solution from the pump is guided into the patient's body. The needle cover 20A is formed in a bellows shape so as to be easily compressed and deformed.

The connecting member 20 further includes an elastic member 25. The action of the elastic member 25 will be described later.

The cannula 12 of the indwelling member 10 preferably has a certain degree of flexibility and strength in order to cope with movements in daily life while being inserted into the patient's body. The cannula 12 is formed using, for example, a resin such as fluororesin, polyethylene, polypropylene, or polyurethane.

The partition wall portion 13 of the indwelling member 10 and the needle cover 20A of the connecting member 20 need to penetrate the needle 20B when the connecting member 20 is attached to the indwelling member 10, and the needle 20A when the connecting member 20 is removed from the indwelling member 10. It is preferable to have some degree of self-occlusion because it is necessary to close the hole made by 20B. The partition 13 and the needle cover 20A are, for example, natural rubber, synthetic polyisoprene rubber, butyl rubber, chloroprene rubber, silicon rubber, urethane rubber, styrene-butadiene rubber, ethylene-propylene rubber, acrylic rubber, fluororubber, or thermoplastic elastoma. It is formed by using an elastic material such as.

The needle 20B of the connecting member 20 is made of, for example, a metal such as stainless steel or a hard plastic such as polycarbonate, polypropylene, or ABS resin. As a result, the needle 20B can easily penetrate the needle cover 20A. In addition, the parts other than the cannula 12, the partition wall 13, the needle cover 20A and the needle 20B in the indwelling member 10 and the connecting member 20 are, for example, a polyolefin such as polyethylene, polypropylene, polybutadiene, an ethylene-vinyl acetate copolymer, or polyvinyl chloride. , Polyurethane, Polystyrene, Polymethylmethacrylate, Polycarbonate, Polyester, Polyethylene terephthalate, Polybutylene terephthalate and other polyesters, Acrylic resin, ABS resin, Ionoma, Polyacetal, Polyphenylene sulfide, Polyether ether ketone and other resin materials To.

FIG. 5 is a perspective view showing the indwelling member 10, and FIG. 6 is a sectional view taken along line VI-VI in FIG.

With reference to FIGS. 5 and 6, the indwelling member 10 includes a guide portion 11A as a "protruding portion" that projects outward of the wearer's body with respect to the base portion 11. The guide portion 11A guides the sliding movement of the connecting member 20 that is attached to and detached from the indwelling member 10. The guide portion 11A has an even regular polygon (regular octagon in the present embodiment) shape. When the guide portion 11A has a regular octagonal shape, each of the four sets of opposite sides functions as a guide surface for guiding the slide movement of the connecting member 20, so that the sliding movement of the connecting member 20 can be guided along four different directions. it can. In this way, by supporting the slide movement in a plurality of directions, it is possible to appropriately select from which direction the connecting member 20 is attached to the indwelling member 10, and the connecting member 20 can be attached to and detached from the indwelling member 10. It can be done easily. Further, the guide portion 11A formed in a polygonal shape is around an axis orthogonal to the extending direction of the base portion 11 when the connecting member 20 is attached to the indwelling member 10 (around the vertical axis in FIGS. 5 and 6). ) Also functions as a "rotation suppression unit" that suppresses the rotation of the connecting member 20.

As shown in FIGS. 5 and 6, the base portion 11 has a thin disk shape. Further, the partition wall portion 13 has an internal space 13A, and the internal space 13A and the cannula 12 communicate with each other. Further, the partition wall portion 13 has a puncture portion 13B through which the needle 20B of the connecting member 20 is pierced. The puncture portion 13B is formed on the side surface portion of the partition wall portion 13. The locking portion 14 has a flange portion 14A. The flange portion 14A has a disk shape like the base portion 11. The flange portion 14A is provided so as to project radially outward with respect to the guide portion 11A and the partition wall portion 13, but has a smaller diameter than the base portion 11. The puncture portion 13B in the partition wall portion 13 projects upward from the flange portion 14A. That is, in the state where the connecting member 20 is removed from the indwelling member 10, the puncture portion 13B through which the needle 20B is pierced is exposed to the outside. In other words, when the connecting member 20 is attached to the indwelling member 10, the needle 20B is pierced through the puncture portion 13B exposed to the outside.

7 to 10 are a top view, a bottom view, a side view, and a side sectional view of the connecting member 20, respectively.

With reference to FIGS. 7 to 10, the main body portion 21 of the connecting member 20 is formed in a substantially U shape. More specifically, the main body portion 21 has a rear end portion 21A, a fulcrum portion 21B, a tip portion 21C and an opening portion 21D. The guide portion 11A of the indwelling member 10 is received in the opening 21D. As shown in FIG. 8, by pressing the rear end portion 21A in the direction of the arrow DR21A (that is, the main body portion 21 is picked from both sides), the tip portion 21C is deformed in the direction of the arrow DR21C with the fulcrum portion 21B as the fulcrum. As a result, the distance between both ends of the connecting member 20 formed in a substantially U shape is widened, and the lock of the lid portion 22 with respect to the main body portion 21 is released. A recess 21E having a shape that easily follows the shape of a finger is formed on the side surface of the main body portion 21. This makes it easier to hold the main body portion 21 with two fingers.

As shown in FIG. 9, the locking mechanism between the main body portion 21 and the lid portion 22 is composed of the tip portion 21C of the main body portion 21 and the engaging portion 22A that engages with the tip portion 21C. .. That is, when the tip portion 21C is deformed in the direction of the arrow DR21C (see FIG. 11 (a)), the engagement between the tip portion 21C and the engaging portion 22A is disengaged, and the lid portion 22 is opened in the opening direction (arrow DR22A direction). ) (See Fig. 11 (b)).

As shown in FIG. 10, the connecting member 20 has a rail portion 26 that engages with the flange portion 14A formed on the indwelling member 10. The flange portion 14A and the rail portion 26 of the indwelling member 10 restrain the connecting member 20 in a direction orthogonal to the extending direction of the base portion 11 when the connecting member 20 is attached to the indwelling member 10.

Further, the lid portion 22 has a claw portion 27. The claw portion 27 comes into contact with the indwelling member 10 when the lid portion 22 is locked with respect to the main body portion 21. As a result, when the connecting member 20 is attached to the indwelling member 10, the connecting member 20 is restrained in the extending direction of the base portion 11.

As described above, the connecting member 20 is prevented from coming off from the indwelling member 10. The connecting member 20 is further provided with the elastic member 25 described above. The elastic member 25 is composed of, for example, a leaf spring formed in a strip shape. One end side (root side) of the elastic member 25 is fixed to the main body portion 21, and the other end side (tip side) of the elastic member 25 is a free end. As shown in FIG. 10, with the lid portion 22 open, the tip portion 250 of the elastic member 25 is in contact with the lid portion 22. Therefore, when the lid portion 22 is closed (the lid portion 22 is locked with respect to the main body portion 21), an urging force is generated on the elastic member 25. In the present embodiment, as shown in FIG. 8, two elastic members 25 are provided symmetrically, but one elastic member 25 may be provided, or three or more elastic members 25 may be provided. May be good. Further, as the elastic member 25, a known elastic member such as a coil spring can be used in addition to the leaf spring.

When the lid portion 22 is locked with respect to the main body portion 21, the elastic member 25 is deformed between the main body portion 21 and the lid portion 22 and between the indwelling member 10 and the connecting member 20 (Fig. 4). State shown). When removing the connecting member 20 from the indwelling member 10, the rear end portion 21A of the connecting member 20 is pressed in the direction of the arrow DR21A to widen the distance between both ends of the connecting member 20 to lock the main body portion 21 and the lid portion 22. Opening is as described above, but due to the deformation of the elastic member 25 as described above, the urging force (restoring force) of the elastic member 25 rotates the lid portion 22 in the rotation direction (in FIG. 10). It will be urged in the direction of arrow DR22A). As a result, the connecting member 20 can be easily removed from the indwelling member 10. Further, by appropriately changing the installation position of the elastic member 25, the elastic member 25 not only urges the lid portion 22 in the rotation direction, but also slides the connecting member 20 in the slide direction (direction of arrow DR20A in FIG. 10). ) Can be urged. As a result, it becomes easier to remove the connecting member 20 from the indwelling member 10.

As described above, according to the subcutaneous injector according to the present embodiment, the puncture portion 13B through which the needle 20B of the connecting member 20 is pierced is exposed to the outside in a state where the connecting member 20 is removed from the indwelling member 10. Therefore, the disinfection work before attaching the connecting member 20 to the indwelling member 10 can be easily performed. As a result, a subcutaneous injector with easy hygiene management is provided. Further, since the puncture portion 13 projects upward from the locking portion 14, the needle 20B can be inserted from the side of the partition wall portion 13 as described above. That is, by projecting the puncture portion 13 above the locking portion 14, the needle 20B can be inserted from above as in the conventional subcutaneous injector (Patent Document 3), and the needle 20B can be inserted. It is also possible to insert from the side. As a result, a subcutaneous injector is provided in which the connecting member 20 can be easily attached.

Further, according to the subcutaneous injector according to the present embodiment, the hole formed in the puncture portion 13B can be closed by the self-occlusion of the puncture portion 13B by penetrating the needle 20B of the connecting member 20. , It is easy to manage the hygiene of the internal space 13A inside the partition wall 13 when the connecting member 20 is removed from the indwelling member 10.

Further, according to the subcutaneous injector according to the present embodiment, the connecting member 20 can be attached to the indwelling member 10 by sliding the connecting member 20 along the extending direction of the base portion 11 in the indwelling member 10. Therefore, the connecting member 20 can be easily attached to the indwelling member 10. Further, since the lid portion 22 can be urged in the rotation direction (arrow DR22A direction) by the elastic member 25 provided on the connecting member 20, the connecting member 20 can be easily removed from the indwelling member 10. As described above, according to the present embodiment, there is provided a subcutaneous injector in which the connecting member 20 can be easily attached to and detached from the indwelling member 10.

Further, the lid portion 22 is unlocked from the main body portion 21 by widening the distance between both ends of the substantially U-shape in the main body portion 21 of the connecting member 20, so that the predetermined position of the connecting member 20 is sandwiched from both sides of the main body portion 21. Since the lid portion 22 can be unlocked, it is not necessary to lift the lid portion 22 upward to unlock the lock. In a conventional subcutaneous injector not provided with such a configuration, when the connecting member 20 is removed in order to prevent the indwelling member 10 from coming off the patient's body as the lid portion 22 is lifted upward. , It is necessary to remove the connecting member 20 with the other hand while holding the indwelling member 10 with one hand. On the other hand, in the subcutaneous injector according to the present embodiment, it is not necessary to hold down the indwelling member 10 when removing the connecting member 20, and the connecting member 20 can be removed with one hand. Therefore, the connecting member 20 can be more easily removed from the indwelling member 10.

The above contents can be summarized as follows. That is, the subcutaneous injector according to the present embodiment is a subcutaneous injector for injecting a drug solution into the wearer's body, and is equipped with a base portion 11 that can be fixed to the wearer's body surface and the base portion 11. The cannula 12 as a "chemical passage" that reaches the wearer's body when fixed to the body surface of the person, the partition wall 13 that defines the cannula 12, and the locking portion 14 that locks the partition wall 13 onto the base portion 11. The indwelling member 10 is provided. The partition wall portion 13 of the indwelling member 10 includes a puncture portion 13B into which the needle 20B as a chemical solution supply portion is inserted, and the puncture portion 13B is from the locking portion 14 in a state where the needle 20B is removed from the indwelling member 10. Is also formed so as to protrude upward. The needle 20B is provided on the connecting member 20. The connecting member 20 is detachably attached to the indwelling member 10 by sliding and moving along the extending direction of the base portion 11. The needle 20B communicates with the cannula 12 when the connecting member 20 is attached to the indwelling member 10.

Further, the subcutaneous injector according to the present embodiment is fixed to the connecting member 20, and the needle cover 20A as a "cover member" formed so as to cover the needle 20B when the connecting member 20 is removed from the indwelling member 10. Further prepare. When the connecting member 20 is attached to the indwelling member 10, the needle cover 20A contracts in the axial direction when the needle cover 20A abuts on the indwelling member 10 and receives a compressive force, and the needle 20B contracts in the needle cover 20A and the puncture portion. It is formed so as to penetrate 13B and communicate with the cannula 12.

In the present embodiment, the subcutaneous injector used in the continuous insulin subcutaneous injection method has been described, but the subcutaneous injector is also applied to applications for supplying other drug solutions into the body (for example, pain treatment). It is possible.

(Embodiment 2) 12 and 13 are a bottom view and a side sectional view of the connecting member included in the subcutaneous injector according to the second embodiment, respectively, and show only the connecting member when attached to the indwelling member. 14 and 15 are side sectional views showing a state in which the connecting member of the subcutaneous injector is attached to the indwelling member, respectively (FIG. 14 shows before the lid portion 22 is closed, and FIG. 15 shows the lid. Shown after closing part 22).

With reference to FIGS. 12 to 15, the subcutaneous injector according to the present embodiment is a modified example of the subcutaneous injector according to the first embodiment, and is accompanied by rotation of the lid portion 22 in the connecting member 20. It is characterized in that a pressing portion 28 that rotates and presses the partition wall portion 13 is further provided.

As shown in FIGS. 12 and 13, the pressing portion 28 is fixed to the elastic member 25. The upper end of the pressing portion 28 is in contact with the lid portion 22. Further, as shown in FIG. 14, when the lid portion 22 is opened, the lower end of the pressing portion 28 is in contact with the partition wall portion 13. From this state, when the lid portion 22 is rotated and closed, as shown in FIG. 15, pressing is performed at both ends of the pressing portion 28 in the width direction (direction from the back to the front of the paper surface in FIGS. 14 and 15). The portion 28 presses the partition wall portion 13 toward the wearer's body surface. By doing so, after the connecting member 20 is attached to the indwelling member 10, the partition wall portion 13 is compressed by the pressing portion 28, and the periphery of the hole through which the needle 20B is pierced can be reliably closed. Therefore, a relatively soft material can be used for the partition wall portion 13, and it is possible to easily achieve both a reduction in the puncture resistance to the puncture portion 13B and an increase in the airtightness of the puncture portion 13B after puncture. ..

In the present embodiment, an example of pressing the partition wall portion 13 toward the body surface of the wearer has been described, but the direction of pressing the partition wall portion 13 is not limited to this. For example, when the needle 20B is inserted into the partition wall 13 from above the partition wall 13, in a typical example, after the needle 20B is inserted, the partition wall 13 is pressed in a direction substantially parallel to the wearer's body surface.

Although the embodiments of the present invention have been described above, it should be considered that the embodiments disclosed this time are exemplary in all respects and are not restrictive. The scope of the present invention is indicated by the claims and is intended to include all modifications within the meaning and scope equivalent to the claims.

<figref num="1">It is a perspective view which shows the state before attaching the connecting member of the subcutaneous injector which concerns on Embodiment 1 of this invention to an indwelling member.</figref><figref num="2">It is a perspective view which shows the state which attached the connecting member of the subcutaneous injector which concerns on Embodiment 1 of this invention to an indwelling member.</figref><figref num="3">FIG. 3 is a sectional view taken along line III-III in FIG.</figref><figref num="4">FIG. 2 is a sectional view taken along line IV-IV in FIG.</figref><figref num="5">It is a perspective view which shows the indwelling member included in the subcutaneous injector shown in FIGS. 1 to 4.</figref><figref num="6">FIG. 5 is a sectional view taken along line VI-VI in FIG.</figref><figref num="7">It is a top view of the connecting member included in the subcutaneous injector shown in FIGS. 1 to 4.</figref><figref num="8">It is a bottom view of the connecting member included in the subcutaneous injector shown in FIGS. 1 to 4.</figref><figref num="9">It is a side view of the connecting member included in the subcutaneous injector shown in FIGS. 1 to 4.</figref><figref num="10">It is a side sectional view of the connecting member included in the subcutaneous injector shown in FIGS. 1 to 4.</figref><figref num="11">It is a figure which shows the lock mechanism of the main body part and the lid part in the connecting member shown in FIGS. 7 to 10.</figref><figref num="12">It is a bottom view of the connecting member included in the subcutaneous injector according to the second embodiment of the present invention, and shows only the connecting member when it is attached to the indwelling member.</figref><figref num="13">It is a side sectional view of the connecting member included in the subcutaneous injector according to the second embodiment of the present invention, and shows only the connecting member when it is attached to the indwelling member.</figref><figref num="14">It is a side sectional view (No. 1) which shows the state which attached the connecting member of the subcutaneous injector which concerns on Embodiment 2 of this invention to an indwelling member.</figref><figref num="15">FIG. 2 is a side sectional view (No. 2) showing a state in which the connecting member of the subcutaneous injector according to the second embodiment of the present invention is attached to the indwelling member.</figref>

Code description

10 indwelling member, 11 base part, 11A guide part, 12 cannula, 13 partition part, 13A internal space, 13B puncture part, 14 locking part, 14A flange part, 20 connecting member, 20A needle cover, 20B needle, 21 body part , 21A rear end, 21B fulcrum, 21C tip, 21D opening, 21E recess, 22 lid, 22A engagement, 23 infusion line, 24 connector, 25, 25A elastic member, 26 rail, 27 claw , 28 Pressing part, 250 Tip part.