Anastomosis stapler sled loader, anastomosis stapler sled unloader, and loader / unloader kit

Abstract

The application discloses an anastomat sled head assembling tool, an anastomat sled head disassembling tool and an assembling and disassembling tool kit. The anastomat sled head assembling tool is used for assembling an anastomat sled head on an anastomat nail abutting seat. The anastomat sled head comprises a head part which is at least partially provided with a body part. The assembling tool comprises a tool main body which is provided with an assembling cavity. The assembling cavity is suitable for being at least partially assembled into the anastomat sled head. The assembling cavity is at least partially provided with a body part restraining cavity. The body part restraining cavity is at least partially tightly fitted with the body part after the anastomat sled head is assembled into the assembling cavity and is in place. The application can conveniently assemble and disassemble the anastomat sled head in an anastomat and the nail abutting seat, and is convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to an anastomat sled head mounting tool, an anastomat sled head dismounting tool and a mounting and dismounting tool kit. BACKGROUND

[0002] At present, the anastomat includes a butt seat, the front end of the butt seat is provided with an anastomat sled head, also known as an eagle beak head, the anastomat sled head has an outer shape structure which can conveniently separate tissues and play a guiding role, can smoothly enter the tissues and reduce tissue damage, the anastomat sled head can be applied to disposable endoscopic linear cutting anastomat and disposable electric endoscopic linear cutting anastomat, etc., the anastomat sled head on the existing market can be designed in an integral manner with the butt seat, and is usually fixed together by laser welding, of course, the anastomat sled head can also be provided in a split structure with the butt seat, for example, a Chinese patent with publication number CN217219103U discloses a detachable anastomat sled head and butt seat connecting device and an anastomat applying the same, the anastomat sled head and the butt seat in the anastomat are provided in a split structure, the structure of the anastomat sled head is shown in FIGS. 1(a) and 1(b), in actual use, the anastomat sled head has a relatively small outer size and has multiple types, and it is not very convenient to mount and dismount the anastomat sled head on the butt seat, so it is urgent to design a mounting and dismounting tool on the basis, which can conveniently mount and dismount the anastomat sled head and the butt seat. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the defects of the prior art and provide an anastomat sled head mounting tool which can conveniently mount the anastomat sled head in the anastomat and the butt seat.

[0004] In order to solve the above technical problems, the technical scheme of the present application is as follows: an anastomat sled head mounting tool is used to mount an anastomat sled head on an anastomat butt seat, the anastomat sled head includes a head portion, and the head portion is at least partially provided with a body portion, the mounting tool includes a mounting tool main body, the mounting tool main body is provided with a mounting cavity, the mounting cavity is adapted to be at least partially mounted in the anastomat sled head, and the mounting cavity is at least partially provided with a body portion restraining cavity, the body portion restraining cavity is at least partially tightly fitted with the body portion after the anastomat sled head is mounted in the mounting cavity and in place.

[0005] Further, a specific forming mode of the body portion restraining cavity is introduced, the mounting tool main body is provided with a body portion upper surface cooperating abutting surface which is at least partially abuttingly matched with a body portion upper surface of the body portion, two body portion side surface cooperating abutting surfaces which are at least partially abuttingly matched with opposite two body portion side surfaces of the body portion, and at least one body portion lower surface cooperating abutting surface which is at least partially abuttingly matched with a body portion lower surface of the body portion, the body portion upper surface cooperating abutting surface, the two body portion side surface cooperating abutting surfaces and the at least one body portion lower surface cooperating abutting surface define the body portion restraining cavity.

[0006] Further, in order to improve the mounting firmness of the anastomat sled head on the mounting body, the head is provided with a raised head connected to the body and raised downward from the body, and the assembly cavity is provided with a head constraint area which at least partially constrains the raised head after the anastomat sled head is assembled into the assembly cavity and in place.

[0007] Further, a specific forming mode of the head constraint area is introduced, the mounting body is further provided with a head upper cooperation abutting surface at least partially abutting with the head upper side of the raised head, and at least one pair of head side cooperation abutting surfaces at least partially abutting with the opposite two head side surfaces of the raised head, each pair of head side cooperation abutting surfaces comprises two oppositely arranged head side cooperation abutting surfaces, and the head upper cooperation abutting surface and the head side cooperation abutting surface define the head constraint area.

[0008] Further, in order to better constrain the raised head, the head side cooperation abutting surface is provided with at least two pairs along the extension direction of the opposite two side surfaces of the raised head.

[0009] Further, the assembly cavity is further provided with an entering cavity in front of the body constraint cavity, and after the anastomat sled head is assembled into the assembly cavity and in place, the anastomat sled head is connected with the anastomat nail seat after the anastomat nail seat is operated to enter from the entering cavity.

[0010] The application further provides an anastomat sled head dismounting tool for separating the anastomat sled head from the anastomat nail seat, wherein the anastomat sled head is provided with a lock assembly for locking the anastomat sled head on the anastomat nail seat after the anastomat sled head is assembled into the anastomat nail seat, and the dismounting tool comprises a dismounting tool body provided with a nail seat fitting cavity adapted to be fitted on the anastomat nail seat, and the dismounting tool body is further provided with an elastic protrusion adapted to protrude towards the anastomat nail seat and act on the lock assembly after the anastomat nail seat is fitted into the nail seat fitting cavity and in place.

[0011] Further, in order to be able to be clamped on the anastomat nail seat and enable the dismounting tool body to slide on the anastomat nail seat so that the elastic protrusion can act on the lock assembly, the dismounting tool body has an upper wall and opposite two side walls defining the nail seat fitting cavity, and the inner side surface of at least one of the opposite two side walls is provided with an inwardly protruding guide rail.

[0012] Further, the lower side surface of the nail seat fitting cavity is at least partially open.

[0013] The application further provides a mounting and dismounting tool kit, comprising:

[0014] an anastomat sled head mounting tool;

[0015] an anastomat sled head dismounting tool.

[0016] The two kinds of anastomat sled head tools are provided, and each anastomat sled head tool is adapted to one type of anastomat sled head. The tool main bodies are connected with the tool main bodies of the two kinds of anastomat sled head tools respectively.

[0017] Further, a structure for connecting the two tool main bodies on the tool main body is provided, the tool main body comprises a connecting part, the connecting part comprises a clamping part adapted to be assembled into the anvil adapting cavity, and the connecting part is provided with a clamping strip.

[0018] The side wall is provided with a clamping groove, and after the clamping parts of the two kinds of anastomat sled head tools are assembled into the anvil adapting cavity and in place, the clamping strip is clamped into the clamping groove.

[0019] After the above technical scheme is adopted, when the tool is used to connect the anastomat sled head and the anastomat anvil, the head of the anastomat sled head is directly opposite the entrance of the assembling cavity, the tail of the anastomat sled head is away from the entrance of the assembling cavity, the anastomat sled head is pushed into the tool main body and in place, at least the body of the head of the anastomat sled head is tightly assembled in the body restricting cavity, then the tool main body with the assembled anastomat sled head is pushed towards the anastomat anvil or the anastomat anvil is moved towards the tool main body with the assembled anastomat sled head, then under the guidance of the entrance cavity, the anastomat sled head is moved to be connected with the anastomat anvil, at this time, at least part of the lock assembly is in the clamping groove of the anvil, so that the anastomat sled head is connected with the anastomat anvil, then the tool main body is pulled out of the anastomat anvil; when the tool is used to separate the anastomat sled head from the anastomat anvil, the anvil adapting cavity of the tool main body is assembled on the shape of the anastomat anvil, and direct clamping or sliding can be used, when the tool main body is close to the block clamping hole on the anastomat anvil, the elastic protrusion will resist the lock assembly, so that the lock assembly is separated from the block clamping hole, at this time, the anastomat sled head is not limited by the anastomat anvil, then the anastomat sled head is pulled out, and finally the tool main body is disassembled from the anastomat anvil; in addition, when not in use, the tool main bodies of the two kinds of tools can be connected at two ends of the tool main body respectively to form an integral whole, so as to be convenient to store and use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1(a) is a perspective view of the anastomat sled head of the first structure of the present application;

[0021] Fig. 1(b) is a perspective view of the anastomat sled head of the second structure of the present application;

[0022] Fig. 2(a) is a perspective view of the anastomat sled head tool of the first structure of the present application;

[0023] Fig. 2(b) is a structural schematic view of the anastomat sled head tool of the first structure of the present application;

[0024] Fig. 2(c) is a cross-sectional view of A-A of Fig. 2(b);

[0025] Fig. 2(d) is a cross-sectional view of B-B of Fig. 2(b);

[0026] Fig. 3(a) is a schematic view of the first structure of the sled head assembly of the present application;

[0027] Fig. 3(b) is a bottom view of Fig. 3(a);

[0028] Fig. 4(a) is a schematic view of the second structure of the sled head assembly of the present application;

[0029] Fig. 4(b) is a bottom view of Fig. 4(a);

[0030] Figure 5 is a flow chart of the assembly of the sled head on the anastomat cartridge;

[0031] Fig. 6(a) is a perspective view of the sled head disassembly tool of the present application;

[0032] Fig. 6(b) is a schematic view of the sled head disassembly tool of the present application;

[0033] Fig. 6(c) is a cross-sectional view of C-C of Fig. 6(b);

[0034] Fig. 7(a) is a schematic view of the assembly and disassembly tool kit of the present application;

[0035] Fig. 7(b) is a perspective view of the assembly and disassembly tool kit of the present application;

[0036] Figure 8 is a flow chart of the disassembly of the sled head from the anastomat cartridge. DETAILED DESCRIPTION

[0037] In order to make the content of the present application more easily and clearly understood, the present application is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings.

[0038] As shown in FIG. 1(a), the structure of the anastomat sled head of one structure is shown, and FIG. 1(b) shows the structure of the anastomat sled head of another structure, which is basically the same, as follows: the anastomat sled head 10 includes a head portion 10a and an insertion portion 10b adapted to be inserted into the anastomat anvil 20, the head portion 10a is at least partially provided with a body portion 10a1, the head portion 10a is provided with a raised head portion 10a2 connected to the body portion 10a1 and raised downward from the body portion 10a1, the anastomat sled head 10 is provided with a lock assembly 30 for locking the anastomat sled head 10 in the anastomat anvil 20 after the anastomat sled head 10 is assembled into the anastomat anvil 20, the lock assembly 30 specifically includes a stop block 30a movably clamped on the insertion portion 10b and a spring 30b arranged between the stop block 30a and the insertion portion 10b, as shown in Figure 5 The anastomat anvil 20 specifically includes an insertion hole for inserting the insertion portion 10b, and the anastomat anvil 20 is further provided with a stop block clamping hole 20a communicating with the insertion hole and cooperating with the stop block 30a in the lock assembly 30, and the specific structure can be referred to the Chinese patent with publication number CN217219103U, which discloses a detachable anastomat sled head anvil connecting device and an anastomat applying the same, the specific structure of which is not described in detail in the present application. The anastomat sled head assembly tool, the anastomat sled head disassembly tool and the anastomat sled head assembly and disassembly tool kit disclosed in the present application are used for the assembly and disassembly of the anastomat sled head 10 of the structure on the anastomat anvil 20.

[0039] Embodiment one: as shown in FIGS. 2-5, an anastomat sled head assembly tool for assembling the anastomat sled head 10 on the anastomat anvil 20, the assembly tool includes an assembly tool body 1, the assembly tool body 1 is provided with an assembly cavity, the assembly cavity is adapted to be at least partially assembled into the anastomat sled head 10, the assembly cavity is at least partially provided with a body portion restraining cavity 11, after the anastomat sled head 10 is assembled into the assembly cavity and in place, the body portion restraining cavity 11 is at least partially tightly fitted with the body portion 10a1.

[0040] As shown in FIGS. 2(a)-2(c), the assembly tool body 1 is provided with a body portion upper cooperation abutting surface 11a at least partially abutting with the body portion upper side surface 101 of the body portion 10a1, two body portion side cooperation abutting surfaces 11b at least partially abutting with the opposite two body portion side surfaces 102 of the body portion 10a1, and at least one body portion lower cooperation abutting surface 11c at least partially abutting with the body portion lower side surface 103 of the body portion 10a1, the body portion upper cooperation abutting surface 11a, the two body portion side cooperation abutting surfaces 11b and the body portion lower cooperation abutting surface 11c define the body portion restraining cavity 11.

[0041] Specifically, in the present embodiment, as shown in FIGS. 2(a)-2(c), the body portion lower cooperation abutting surface 11c abutting with the body portion lower side surface 103 of the body portion 10a1 is provided with two and arranged in pairs, and an opening can be formed between the two body portion lower cooperation abutting surfaces 11c.

[0042] Specifically, as shown in FIG. 2(a)~2(c), the assembly cavity is further provided with a head-restraining area 12, which at least partially restrains the raised head 10a2 after the anastomat sled head 10 is assembled into the assembly cavity and in place.

[0043] Specifically, as shown in FIG. 2(a)~2(c), the assembly body 1 is further provided with a head upper cooperating abutting surface 12a at least partially abutting with the head upper side 111 of the raised head 10a2, and at least one pair of head side cooperating abutting surfaces 12b at least partially abutting with the opposite two head side surfaces 112 of the raised head 10a2, each pair of head side cooperating abutting surfaces 12b including two oppositely arranged head side cooperating abutting surfaces 12b, the head upper cooperating abutting surface 12a and the head side cooperating abutting surfaces 12b defining the head-restraining area 12.

[0044] In the present embodiment, the head upper cooperating abutting surface 12a and the body upper cooperating abutting surface 11a are smoothly connected, and the wall surface forming the head upper cooperating abutting surface 12a and the body upper cooperating abutting surface 11a is provided with a lock assembly avoiding groove to avoid the block 30a of the lock assembly.

[0045] Specifically, as shown in FIG. 2(a)~2(c), the head side cooperating abutting surfaces 12b are provided with two pairs along the extension direction of the opposite two head side surfaces 112 of the raised head 10a2; of course, it can also be provided with one pair.

[0046] Specifically, as shown in FIG. 2(a)~2(c), the assembly cavity is further provided with an entering cavity 14 in front of the body-restraining cavity 11, and when the anastomat sled head 10 is assembled into the assembly cavity and in place, the anastomat sled head 10 is connected with the anastomat sled head 10 after the anastomat sled head 10 is operated to make the anastomat sled head 20 enter from the entering cavity 14; in the present embodiment, the entering cavity 14 plays a role of fixing and guiding the anastomat sled head 20.

[0047] In addition, the assembly body 1 is further provided with a hand holding portion.

[0048] When the device of the present embodiment is used to connect the sled head 10 and the anastomat anvil 20, the head 10a of the sled head 10 is directed towards the entrance of the assembly cavity, the tail of the sled head 10 is directed away from the entrance of the assembly cavity, the sled head 10 is pushed into the device body and into position so that the body 10a1 of the head 10a of the sled head 10 is tightly fitted into the body restraining cavity 11 and the raised head 10a2 is restrained on the head restraining area 12, then the device body with the assembled sled head is pushed towards the anastomat anvil 20 or the anastomat anvil 20 is moved towards the device body 11 with the assembled sled head 10, then under the guidance of the entrance cavity 14, the sled head 10 is moved to be connected with the anastomat anvil 20, at this time, at least part of the lock assembly 30 (i.e. the stopper 30a) enters the stopper clamping hole 20a of the anastomat anvil 20, so that the sled head 10 is connected with the anastomat anvil 20, then the device body 1 is pulled out of the anastomat anvil 20.

[0049] Embodiment 2: As shown in FIGS. 6(a)~6(c), a sled head disassembling device for disconnecting the sled head 10 from the anastomat anvil 20, the disassembling device comprises a disassembling device body 2, the disassembling device body 2 is provided with an anvil assembly cavity 21 adapted to assemble on the anastomat anvil 20, the disassembling device body 2 is further provided with an elastic protrusion 22 adapted to protrude towards the anastomat anvil 20 and act on the lock assembly 30 after the anastomat anvil 20 is assembled into the anvil assembly cavity 21 and into position.

[0050] As shown in FIG. 6(c), the disassembling device body 2 has an upper wall 21a and two opposite side walls 21b defining the anvil assembly cavity 21, and the inner side of each of the two opposite side walls 21b is provided with an inwardly protruding guide rail 21c; the two guide rails 21c are symmetrical.

[0051] Specifically, in the present embodiment, the upper wall 21a can extend a protruding wall, and the protruding wall is provided with the downwardly protruding elastic protrusion 22.

[0052] As shown in FIG. 6(c), the lower side of the anvil assembly cavity 21 is at least partially open to facilitate the anastomat anvil 20 to be clamped into the anvil assembly cavity 21; of course, the disassembling device body 2 can also be slid into the anastomat anvil 20 from the head of the anastomat anvil 20.

[0053] When the disassembling tool is used to detach the anastomat sled 10 from the anastomat anvil 20, the anvil fitting cavity 21 of the disassembling tool body 2 is fitted on the outer shape of the anastomat anvil 20, which can be achieved by directly clamping or sliding in, when the disassembling tool body 2 is close to the stop block clamping hole 20a on the anastomat anvil 20, the elastic protrusion 22 will abut against the stop block 30a in the lock assembly, so that the lock assembly is detached from the stop block clamping hole 20a, at this time the anastomat sled 10 is not limited by the anastomat anvil 20, then the anastomat sled 10 is pulled out, and finally the disassembling tool body 2 is detached from the anastomat anvil 20.

[0054] Embodiment three: a disassembling tool kit, comprising:

[0055] The anastomat sled assembling tool in embodiment one;

[0056] The anastomat sled disassembling tool in embodiment two.

[0057] Embodiment four: on the basis of embodiment three, as shown in FIGS. 7(a), 7(b), and 8, the anastomat sled assembling tool is provided with two kinds, each of which is adapted to an anastomat sled 10 of a certain model, and the two kinds of anastomat sleds 10 can be as shown in FIGS. 1(a) and 1(b), and the two ends of the disassembling tool body 2 are respectively connected with the assembling tool body 1 of one kind of anastomat sled assembling tool.

[0058] Specifically, as shown in FIGS. 7(a) and 7(b), the assembling tool body 1 can include a connecting part 13, which includes a clamping part 13a adapted to be fitted into the anvil fitting cavity 21, and the connecting part 13 is provided with a clamping strip 13b;

[0059] The side wall 21b is provided with a clamping groove 21b1, and after the clamping part 13a of the two kinds of anastomat sled assembling tools is fitted into the anvil fitting cavity 21 and in place, the clamping strip 13b is clamped into the clamping groove 21b1.

[0060] Specifically, as shown in FIG. 7(a), the two sides or one side of the clamping part 13a is provided with a guide rail clamping groove 13a1 matched with the guide rail 21c.

[0061] The connecting parts 13 of the two assembling tool bodies 1 are fitted into the anvil fitting cavity 21, the guide rail 21c is clamped into the guide rail clamping groove 13a1, and then the clamping strips 13b provided on the same side of the two connecting parts 13 are fitted into the clamping groove 21b1 on the same side, of course, one clamping strip 13b can correspond to one clamping groove 21b1; in this way, the two assembling tool bodies 1 are clamped on the disassembling tool body 2 to form a whole, as shown in FIG. 7(b), which is convenient for storage and use.

[0062] The above-described specific embodiments further illustrate the technical problems solved by the present application, technical solutions and beneficial effects, and it should be understood that the above-described are only specific embodiments of the present application and are not intended to limit the present application, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A disassembly / removal kit, characterized in that, include: Anastomosis device sled head fitting; Anastomosis device sled head removal tool; among which... The stapler sled head device is used to assemble the stapler sled head (10) onto the stapler anvil (20). The stapler sled head (10) includes a head (10a), which at least partially has a body (10a1). The stapler sled head device includes a device body (1), which has an assembly cavity adapted to at least partially assemble the stapler sled head (10). The assembly cavity at least partially has a body restraint cavity (11). After the stapler sled head (10) is assembled into the assembly cavity and in place, the body restraint cavity (11) at least partially fits the body (10a1). The stapler sled head removal tool is used to remove the stapler sled head (10) from the stapler anvil (20). The stapler sled head (10) is provided with a locking assembly (30) that locks the stapler sled head (10) onto the stapler anvil (20) after the stapler sled head (10) is installed into the stapler anvil (20). The removal tool includes a removal tool body (2). The removal tool body (2) is provided with an anvil adapter cavity (21) suitable for installation into the stapler anvil (20). The removal tool body (2) is also provided with an elastic protrusion (22). The elastic protrusion (22) is suitable for protruding towards the stapler anvil (20) and acting on the locking assembly (30) after the stapler anvil (20) is installed into the anvil adapter cavity (21) and in place. The two ends of the disassembly body (2) are respectively connected to the body (1) of a stapler sled head device.

2. The assembly / disassembly kit according to claim 1, characterized in that, The stapler sled head assembly is available in two types, each of which is adapted to a specific model of stapler sled head (10).

3. The assembly / disassembly kit according to claim 2, characterized in that, The main body (1) of the device includes a connecting part (13), the connecting part (13) includes a snap-fit ​​part (13a) adapted to be fitted into the mating cavity (21) of the anvil seat, and a snap-fit ​​strip (13b) is provided on the connecting part (13). The side wall (21b) is provided with a slot (21b1). After the snap-fit ​​part (13a) of the two types of stapler sled head fittings is installed into the anvil seat adapter cavity (21) and in place, the snap strip (13b) is snapped into the slot (21b1).

4. The assembly / disassembly kit according to claim 1, characterized in that, The main body (1) of the device is provided with an upper body mating surface (11a) that at least partially abuts against the upper side surface (101) of the body (10a1), two side body mating surfaces (11b) that at least partially abut against the two opposite side surfaces (102) of the body (10a1), and at least one lower body mating surface (11c) that at least partially abuts against the lower side surface (103) of the body (10a1). The upper body mating surface (11a), the two side body mating surfaces (11b) and the lower body mating surface (11c) define the body restraint cavity (11).

5. The assembly / disassembly kit according to claim 1, characterized in that, The head (10a) is provided with a raised head (10a2) that connects to the body (10a1) and curves downward from the body (10a1). The assembly cavity is provided with a head constraint area (12). After the stapler sled head (10) is assembled into the assembly cavity and in place, the head constraint area (12) at least partially constrains the raised head (10a2).

6. The assembly / disassembly kit according to claim 5, characterized in that, The main body (1) of the device is further provided with a head upper mating surface (12a) that at least partially abuts against the upper side surface (111) of the raised head (10a2), and at least a pair of head side mating surfaces (12b) that at least partially abut against the two opposite head sides (112) of the raised head (10a2). Each pair of head side mating surfaces (12b) includes two oppositely arranged head side mating surfaces (12b). The head upper mating surface (12a) and the head side mating surfaces (12b) define the head constraint area (12).

7. The assembly / disassembly kit according to claim 6, characterized in that, The head-side mating surfaces (12b) are provided with at least two pairs along the extending direction of the opposite two sides of the raised head (10a2).

8. The assembly / disassembly kit according to claim 1, characterized in that, The assembly cavity is further provided with an entry cavity (14) in front of the body restraint cavity (11). When the stapler sled head (10) is assembled into the assembly cavity and in place, the device body (1) is operated so that the stapler anvil (20) enters from the entry cavity (14) and connects with the stapler sled head (10).

9. The assembly / disassembly kit according to claim 1, characterized in that, The dismantling body (2) has an upper wall (21a) defining the anvil seat adapter cavity (21) and two opposing side walls (21b), and an inwardly protruding guide rail (21c) is provided on the inner side of at least one of the opposing side walls (21b).

10. The assembly / disassembly kit according to claim 9, characterized in that, The lower side of the anvil adapter cavity (21) is at least partially open.

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