Disassembling tool for eagle hook mouth and nail bin and medical device

Abstract

The utility model discloses a dismantlement tool and medical device for eagle hook mouth and staple cartridge, eagle hook mouth includes body part and the plug-in part that extends outward from the body part, the plug-in part is buckled and connected with the staple seat, dismantlement tool includes: tool body; the eagle hook mouth dismounting end is arranged at the first end close to the length direction of the tool body, is used for dismounting the eagle hook mouth, and comprises a first accommodating cavity for accommodating the body part and a drag hook arranged in the first accommodating cavity; and the nail bin assembly disassembling end is arranged at the second end close to the length direction of the tool body, is used for disassembling the nail bin assembly and comprises a second containing cavity used for containing the head end of the nail bin assembly. According to the detaching tool for the eagle hook mouth and the nail bin, detaching of the eagle hook mouth and the nail bin assembly can be achieved, operation is convenient and fast, and working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, and specifically relates to a disassembly tool and medical device for hook mouth and nail cartridge. Background Technology

[0002] In laparoscopic surgery, surgeons typically use a hook tip mounted on the front of the anvil to dissect tissue around blood vessels. However, in other applications, the hook tip is not needed, requiring its removal. Laparoscopic staplers use titanium staples in the staple cartridge assembly to suture tissue, and multiple staple cartridge assemblies are usually used in a single surgery. The staple cartridge assembly is connected to the staple cartridge seat on the device body via clips. Due to issues such as inconsistent component dimensions, sometimes the clips on the staple cartridge assembly fit too tightly with the staple cartridge seat, requiring considerable force from the surgeon to remove the assembly.

[0003] Because medical staff wear gloves during surgery, and due to the various liquids adhering to the gloves, their hands are prone to slipping when disassembling the hook nozzle and staple cartridge assembly. Therefore, without the assistance of tools, it is difficult for medical staff to remove the staple cartridge assembly and hook nozzle from the instrument. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide a tool for disassembling hook mouths and nail cartridges, which is easy to operate and improves work efficiency.

[0005] To overcome the shortcomings of the existing technology, one of the technical solutions provided by this utility model is:

[0006] A tool for disassembling a hook nozzle and a spike cartridge, the hook nozzle comprising a body and an insert portion extending outward from the body, the insert portion being snapped into an anvil; the disassembly tool comprising:

[0007] Tool body;

[0008] The hook mouth disassembly end is disposed on the tool body and near the first end in the length direction, and is used to disassemble the hook mouth, including a first receiving cavity for accommodating the hook mouth and a pull hook disposed in the first receiving cavity;

[0009] The staple cartridge assembly disassembly end is disposed on the tool body and near the second end in the length direction, and is used to disassemble the staple cartridge assembly, including a second receiving cavity for accommodating the head end of the staple cartridge assembly;

[0010] When the hook mouth is placed in the first receiving cavity, the pull hook cooperates with the insertion part to pull the hook mouth out and separate it from the anvil;

[0011] When the head end of the staple cartridge assembly is housed in the second receiving cavity, the tool body is rotated toward the staple cartridge assembly, and the staple cartridge assembly separates from the staple cartridge seat.

[0012] In one embodiment, the anvil is provided with a long groove along its length, and the head end of the long groove is provided with an installation groove for the insertion part to be inserted. Two symmetrically arranged slots are provided at the junction of the installation groove and the long groove. The insertion part includes a snap-fit ​​spring that cooperates with the two snap-fit ​​slots. The snap-fit ​​spring has an abutment surface that abuts against the hook.

[0013] In one embodiment, the first receiving cavity is arranged along the thickness direction of the tool body and extends to the middle of the length direction of the tool body, and the hook extends from a first end portion near the length direction of the tool body to the first receiving cavity.

[0014] In one embodiment, the first receiving cavity is provided with a support portion for supporting the hook.

[0015] In one embodiment, the support portion includes a plurality of support ribs spaced apart along the width direction of the first receiving cavity and connecting ribs connecting the plurality of support ribs.

[0016] In one embodiment, the second receiving cavity extends partially along the length direction of the tool body. The second receiving cavity includes a first surface, a second surface, an inclined surface extending obliquely from the first surface to the second surface, and a connecting surface connecting the inclined surface and the second surface. The first surface and the second surface are respectively arranged on both sides of the tool body in the thickness direction, and the second surface is away from the second end of the tool body in the length direction.

[0017] In one embodiment, the tool body has an anti-slip portion on the end face opposite to the first receiving cavity in the thickness direction.

[0018] In one embodiment, the anti-slip portion includes a plurality of anti-slip strips spaced apart along the length of the tool body.

[0019] In one embodiment, the anti-slip part further includes an anti-slip groove disposed at the first end of the tool body in the length direction and a plurality of anti-slip protrusions disposed in the anti-slip groove.

[0020] In one embodiment, the tool body is provided with a weight-reducing groove between the first receiving cavity and the second receiving cavity. The weight-reducing groove is provided with a plurality of first reinforcing ribs arranged at intervals along the width direction of the tool body and a second reinforcing rib connecting the plurality of first reinforcing ribs.

[0021] To overcome the shortcomings of the existing technology, the second technical solution provided by this utility model is:

[0022] A medical device includes a staple cartridge seat, an anvil hinged to the staple cartridge seat, a staple cartridge assembly detachably connected to the staple cartridge seat, and a disassembly tool as described in any one of the above, wherein the hook nozzle is disposed at the head end of the anvil.

[0023] In the above technical solution, the head end refers to the end of the medical device that is closest to the patient during surgery.

[0024] Compared with the prior art, the advantages of this utility model are:

[0025] 1. This disassembly tool has a simple structure, with a hook tip disassembly end and a staple cartridge assembly disassembly end, which can disassemble the hook tip and staple cartridge assembly. The operation is convenient and quick, improving the doctor's work efficiency.

[0026] 2. An anti-slip part is provided on the end face of the tool body that is away from the first receiving cavity in the thickness direction to prevent the hand from slipping during disassembly and improve work efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is one of the structural schematic diagrams of an embodiment of the disassembly tool for the hook mouth and nail cartridge of this utility model;

[0029] Figure 2 This is a second structural schematic diagram of an embodiment of the present utility model;

[0030] Figure 3 This is a schematic diagram of the anvil in an embodiment of the present invention;

[0031] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0032] Figure 5 This is a schematic diagram of the hook beak structure in an embodiment of this utility model;

[0033] Figure 6 This is a schematic diagram of the nail cartridge holder in an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the staple cartridge assembly in an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the hook mouth and the anvil in an embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the disassembly of the eagle hook mouth in an embodiment of this utility model;

[0037] Figure 10 for Figure 9 Schematic diagram of the BB cross section;

[0038] Figure 11 This is a schematic diagram of the disassembly of the staple cartridge assembly in an embodiment of this utility model;

[0039] Figure 12 for Figure 11 Schematic diagram of the cross-sectional structure of the middle CC section;

[0040] in:

[0041] 1. Tool body; 111. Hook; 112. First receiving cavity; 113. Support rib; 114. Connecting rib; 115. Weight reduction groove; 116. First reinforcing rib; 117. Second reinforcing rib; 12. Second receiving cavity; 121. Second surface; 122. First surface; 123. Inclined surface; 124. Connecting surface; 131. Anti-slip protrusion; 132. Anti-slip strip; 133. Anti-slip groove;

[0042] 21. Anchor seat; 211. Long groove; 212. Slot; 213. Mounting slot; 22. Hook mouth; 221. Snap-fit ​​spring; 222. Abutment surface;

[0043] 31. Staple cartridge holder; 311. Positioning groove; 32. Staple cartridge assembly; 321. Clip. Detailed Implementation

[0044] The above solution will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrating the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0045] See Figure 1 and Figure 2 This is a structural schematic diagram of an embodiment of the present utility model, which provides a tool for disassembling the hook nozzle and staple cartridge, for disassembling the hook nozzle 22 and staple cartridge assembly 32 on a laparoscopic stapler. The staple cartridge mechanism of the laparoscopic stapler includes a staple cartridge seat 31 and a staple abutment seat 21 hinged to the staple cartridge seat 31. The staple cartridge assembly 32 is detachably installed in the staple cartridge seat 31, and the hook nozzle 22 is detachably installed on the staple abutment seat 21.

[0046] like Figure 5As shown, the hook mouth 22 includes a body and an insertion part extending outward from the body. This insertion part is snapped into contact with the anvil 21. Specifically, as shown... Figure 3 and Figure 4 As shown, a long groove 211 is provided along the length direction on the anvil 21. At the head end of the long groove 211 is a mounting groove 213 for inserting the connector. Two symmetrically arranged retaining grooves 212 are provided at the junction of the mounting groove 213 and the long groove 211. Correspondingly, as... Figure 8 As shown, the insertion part includes a snap-fit ​​spring 221 that mates with two slots 212.

[0047] like Figure 6 As shown, positioning grooves 311 are provided on both sides of the inner cavity of the staple cartridge 31, such as... Figure 7 As shown, buckles 321 are provided on both sides of the staple cartridge assembly 32, and the staple cartridge assembly 32 and the staple cartridge seat 31 are connected by the cooperation of the buckles 321 and the positioning groove 311.

[0048] To remove the hook nozzle 22 and the staple cartridge assembly 32 from the staple cartridge mechanism, the aforementioned disassembly tool is provided. This disassembly tool includes a tool body 1, a hook nozzle disassembly end disposed on the tool body 1 near its first longitudinal end, and a staple cartridge assembly disassembly end disposed on the tool body 1 near its second longitudinal end. The tool body 1 has a wedge-shaped block structure, wherein the thickness of the second longitudinal end of the tool body 1 is greater than the thickness of the first longitudinal end.

[0049] The hook mouth disassembly end is used to disassemble the hook mouth 22. It includes a first receiving cavity 112 for accommodating the hook mouth 22 and a pull hook 111 disposed in the first receiving cavity 112. The pull hook 111 extends from a first end portion near the length direction of the tool body 1 to the first receiving cavity 112. The pull hook 111 can be inserted into the long groove 211 of the anchor seat 21. In order to facilitate the pull hook 111 to pull out the hook mouth 22, an abutment surface 222 that abuts against the pull hook 111 is provided on the snap-fit ​​spring 221.

[0050] The first receiving cavity 112 is arranged along the thickness direction of the tool body 1 and extends to the middle of the length direction of the tool body 1, and the hook 111 is set facing the middle of the tool body 1. When the hook tip 22 is placed in the first receiving cavity 112 and the tool body 1 is pulled, the hook 111 can move along the long groove 211 and abut against the contact surface 222, pulling out the hook tip 22 and disengaging it from the anvil 21.

[0051] To facilitate the installation of the hook 111, a support portion for supporting the hook 111 is provided in the first receiving cavity 112. Specifically, the support portion includes a plurality of support ribs 113 arranged at intervals along the width direction of the first receiving cavity 112 and a connecting rib 114 connecting the plurality of support ribs 113. The structure of the support portion can reduce weight while ensuring structural strength.

[0052] The staple cartridge assembly disassembly end is used to disassemble the staple cartridge assembly 31. It includes a second receiving cavity 12 for accommodating the head end of the staple cartridge assembly 31. When the head end of the staple cartridge assembly 32 is placed in the second receiving cavity 12, the tool body 1 is rotated in the direction close to the staple cartridge assembly 32. Under the action of the second receiving cavity 12, the staple cartridge assembly 32 is separated from the staple cartridge seat 31.

[0053] Specifically, the second receiving cavity 12 extends along the length direction of the tool body 1 and is configured to conform to the head end of the staple cartridge assembly 32. It includes a first surface 122, a second surface 121, an inclined surface 123 extending from the first surface 122 to the second surface 121, and a connecting surface 124 connecting the inclined surface 123 and the second surface 121. The first surface 122 and the second surface 121 are respectively arranged on both sides of the tool body 1 in the thickness direction, and the second surface 121 is away from the second end of the tool body 1 in the length direction. Thus, the first surface 122 and the second surface 121 can abut against the two ends of the head end of the staple cartridge assembly 32 in the thickness direction.

[0054] To further optimize the implementation effect of this utility model, an anti-slip part is provided on the end face of the tool body 1 that is away from the first receiving cavity 112 in the thickness direction, so as to increase the friction during disassembly operation and avoid slipping.

[0055] Specifically, the anti-slip part includes a plurality of anti-slip strips 132 arranged at intervals along the length of the tool body 1, an anti-slip groove 133 provided at the first end of the length of the tool body 1, and a plurality of anti-slip protrusions 131 provided in the anti-slip groove 133. When the tool body 1 is pulled or flipped, the anti-slip part can play an anti-slip role and improve work efficiency.

[0056] To further reduce weight, a weight-reducing groove 115 is provided on the tool body 1 between the first receiving cavity 112 and the second receiving cavity 12. A plurality of first reinforcing ribs 116 and second reinforcing ribs 117 connecting the plurality of first reinforcing ribs 116 are provided in the weight-reducing groove 115, which are arranged at intervals along the width direction of the tool body 1.

[0057] This utility model also provides a medical device, including a staple cartridge seat 31, a staple anchor seat 21 hinged to the staple cartridge seat 31, a staple cartridge assembly 32 detachably connected to the staple cartridge seat 31, and the above-mentioned disassembly tool, with the hook mouth 22 disposed at the head end of the staple anchor seat 21.

[0058] The working principle of this utility model is as follows:

[0059] The disassembly process of the hook nozzle is as follows: When it is necessary to remove the hook nozzle 22 from the anvil 21, as follows... Figure 9 and Figure 10As shown, first, place and fasten the disassembly end of the hook tip of the disassembly tool onto the anvil seat 21, with the pull hook 111 located in the long groove 211 on the anvil seat 21 and the hook tip 22 placed in the first receiving cavity 112. Then, pull the tool body 1 away from the anvil seat 21, and the pull hook 111 abuts against the contact surface 222 on the hook tip 22. Continue to pull the tool body 1 to separate the hook tip 22 from the anvil seat 21.

[0060] The disassembly process for the staple cartridge assembly is as follows: When it is necessary to remove the staple cartridge assembly 32 from the staple cartridge holder 31, as follows: Figure 11 and Figure 12 As shown, align the disassembly end of the staple cartridge holder with the head end of the staple cartridge assembly 32, so that the second receiving cavity 12 covers the head end of the staple cartridge assembly 32. At this time, rotate the tool body 1 towards the staple cartridge holder 31. Figure 12 (As shown in the counterclockwise direction), under the action of the second receiving cavity 12, a deflection torque is applied to the staple cartridge assembly 32, causing the staple cartridge assembly 32 to separate from the staple cartridge seat 31.

[0061] In summary, this disassembly tool has a simple structure, combines the functions of disassembling the hook nozzle and the nail cartridge assembly, is easy to operate, and improves work efficiency.

[0062] The above examples are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tool for disassembling a hook nozzle and a spike cartridge, the hook nozzle comprising a body and an insert portion extending outward from the body, the insert portion being snap-fitted into an anvil, characterized in that, The disassembly tool includes: Tool body; The hook mouth disassembly end is disposed on the tool body and near the first end in the length direction, and is used to disassemble the hook mouth, including a first receiving cavity for accommodating the hook mouth and a pull hook disposed in the first receiving cavity; The staple cartridge assembly disassembly end is disposed on the tool body and near the second end in the length direction, and is used to disassemble the staple cartridge assembly, including a second receiving cavity for accommodating the head end of the staple cartridge assembly; When the hook mouth is placed in the first receiving cavity, the pull hook cooperates with the insertion part to pull the hook mouth out and separate it from the anvil; When the head end of the staple cartridge assembly is housed in the second receiving cavity, the tool body is rotated toward the staple cartridge assembly, and the staple cartridge assembly separates from the staple cartridge seat.

2. The disassembly tool for the hook mouth and spike cartridge according to claim 1, characterized in that: The anvil has a long groove along its length, and the head end of the long groove has an installation groove for the insertion part to be inserted. At the junction of the installation groove and the long groove, there are two symmetrically arranged slots. The insertion part includes a snap-fit ​​spring that cooperates with the two slots. The snap-fit ​​spring has an abutment surface that abuts against the hook.

3. The disassembly tool for the hook mouth and spike cartridge according to claim 2, characterized in that: The first receiving cavity is arranged along the thickness direction of the tool body and extends to the middle of the length direction of the tool body, and the hook extends from a first end portion near the length direction of the tool body to the first receiving cavity.

4. The disassembly tool for the hook mouth and spike cartridge according to claim 3, characterized in that: The first receiving cavity is provided with a support portion for supporting the hook.

5. The disassembly tool for the hook mouth and spike cartridge according to claim 4, characterized in that: The support portion includes a plurality of support ribs arranged at intervals along the width direction of the first receiving cavity and connecting ribs connecting the plurality of support ribs.

6. The disassembly tool for the hook mouth and spike cartridge according to claim 1, characterized in that: The second receiving cavity extends along the length direction of the tool body. The second receiving cavity includes a first surface, a second surface, an inclined surface extending from the first surface to the second surface, and a connecting surface connecting the inclined surface and the second surface. The first surface and the second surface are respectively arranged on both sides of the tool body in the thickness direction, and the second surface is away from the second end of the tool body in the length direction.

7. The disassembly tool for the hook mouth and spike cartridge according to claim 6, characterized in that: The tool body has an anti-slip part on the end face that is away from the first receiving cavity in the thickness direction.

8. The disassembly tool for the hook mouth and spike cartridge according to claim 7, characterized in that: The anti-slip part includes a plurality of anti-slip strips arranged at intervals along the length of the tool body.

9. The disassembly tool for the hook mouth and spike cartridge according to claim 8, characterized in that: The anti-slip part also includes an anti-slip groove disposed at the first end of the tool body along its length and a plurality of anti-slip protrusions disposed within the anti-slip groove.

10. The disassembly tool for the hook mouth and spike cartridge according to claim 1, characterized in that: The tool body is provided with a weight-reducing groove between the first receiving cavity and the second receiving cavity. The weight-reducing groove is provided with a plurality of first reinforcing ribs and a second reinforcing rib connecting the plurality of first reinforcing ribs, which are arranged at intervals along the width direction of the tool body.

11. A medical device, characterized in that: The device includes a staple cartridge seat, a staple anchor hinged to the staple cartridge seat, a staple cartridge assembly detachably connected to the staple cartridge seat, and a disassembly tool as described in any one of claims 1 to 10, wherein the hook nozzle is disposed at the head end of the staple anchor.

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