Eagle mouth nail bin provided with elastic locking mechanism and capable of being rapidly disassembled and assembled for endoscope anastomat

Abstract

The utility model relates to the technical field of medical instruments, in particular to an olecranon nail bin with an elastic locking mechanism and capable of being quickly disassembled and assembled for an endoscope anastomat, which consists of an olecranon part, a connecting part at the rear end of the olecranon part and a nail bin. And the connecting part is provided with a mounting groove for accommodating the rotatable fixed block and the spring for locking. A locking groove is formed in the bottom of the butt joint groove. When the connecting part is embedded into the butt joint groove, the fixing block compresses the spring to be hidden, and after complete insertion, elasticity of the spring enables one end of the fixing block to enter the locking groove to limit pulling-out of the connecting part.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a quick-release endoscopic stapler cartridge with an elastic locking mechanism. Background Technology

[0002] As a core instrument in minimally invasive surgery, the reliability and ease of operation of the staple cartridge component of the laparoscopic stapler directly affect the efficiency and safety of the operation. In the existing technology, the traditional eagle beak staple cartridge mostly adopts a fixed connection structure or a simple buckle design, which has the following technical defects: (1) The staple cartridge needs to be completely disassembled for replacement, which prolongs the operation time and increases the risk of cross-contamination; (2) The locking reliability of the traditional buckle structure is insufficient, and it may be accidentally unlocked due to vibration during the operation; (3) The unlocking operation requires the use of special tools, which affects the smoothness of the operation; (4) The connection structure lacks a rotation limit design, and the staple cartridge is prone to deflection, which affects the anastomosis accuracy. Utility Model Content

[0003] The present invention aims to solve the above-mentioned defects and provide a quick-release endoscopic stapler cartridge with an elastic locking mechanism.

[0004] In order to overcome the defects in the background technology, the technical solution adopted by this utility model to solve its technical problem is: a quick-release laparoscopic staple cartridge with an elastic locking mechanism, including a beak part, a connecting part connected to its rear end, an axially formed mounting groove for accommodating a fixing block on the connecting part, the fixing block being rotatably disposed in the mounting groove, and a spring provided in the mounting groove for pushing one end of the fixing block out of the mounting groove;

[0005] The staple cartridge has an axially formed mating groove for matching and mating with the connecting part, so that the beak part is installed at the front end of the staple cartridge. A locking groove for embedding a fixing block is formed on the bottom wall of the mating groove.

[0006] When the connecting part is inserted into the docking groove, the compression spring of the fixing block completely hides the fixing block in the mounting groove. When the connecting part is fully inserted into the docking groove, under the action of the spring force, one end of the fixing block will be pushed into the locking groove, thereby restricting the connecting part from being pulled out of the docking groove.

[0007] Further improvements include matching the radially penetrating fixing hole on the connecting part with the pin hole on the fixing block, and inserting a pin into the fixing hole and the pin hole to realize the rotation of the fixing block.

[0008] Further improvements include having an irregular cross-section for the connecting portion.

[0009] Further improvements include providing a positioning groove on the fixing block for accommodating the spring.

[0010] Further improvements include the addition of an unlocking hole radially formed on the connecting portion, which communicates with the mounting groove.

[0011] The beneficial effects of this utility model are as follows: This design adopts an innovative detachable structure. Through the matching design of the connecting part and the docking groove, combined with the spring and the fixing block locking mechanism, it realizes quick assembly of "one-plug and lock", which reduces the operation time of staple cartridge replacement by more than 60%. The spring force automatic locking combined with the anti-rotation design of the irregular cross section ensures the reliability of locking and eliminates the risk of rotation and displacement. The lever-type unlocking design with the unlocking hole and the fine needle can complete the disassembly in 0.5 seconds with only one hand, which is 3 times more efficient than the traditional threaded structure. The standardized connection interface can be adapted to staple cartridges of different specifications, reducing the instrument purchase cost by 40% while improving the flexibility of surgical adaptation. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is an exploded view of a partial structure of the beak part in this utility model;

[0014] Figure 2 This utility model relates to the axial side assembly of a partial structure of the eagle's beak section. Figure 1 ;

[0015] Figure 3 This utility model relates to the axial side assembly of a partial structure of the eagle's beak section. Figure 2 ;

[0016] Figure 4 This is a top view of the present invention. Figure 1 ;

[0017] Figure 5 yes Figure 4 Sectional view of AA;

[0018] Figure 6 yes Figure 5 Enlarged view of part B in the middle;

[0019] Figure 7 This is the axonometric drawing of this utility model;

[0020] Figure 8 This is the top view of the utility model Figure 2 ;

[0021] Figure 9 This is a front view of the staple cartridge in this utility model;

[0022] In the diagram, 1-beak part, 2-spring, 3-positioning groove, 4-pin hole, 5-fixing block, 6-mounting groove, 7-connecting part, 8-fixing hole, 9-pin shaft, 10-pin magazine, 11-locking groove, 12-unlocking hole, 13-connecting groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort in accordance with the embodiments of the basic utility model are within the scope of protection of this utility model.

[0024] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 as well as Figure 9 A quick-release laparoscopic stapler cartridge with an elastic locking mechanism includes a beak part 1, the rear end of which is connected to a connecting part 7. The connecting part 7 has an axially formed mounting groove 6 for accommodating a fixing block 5. The fixing block 5 is rotatably disposed in the mounting groove 6. A spring 2 is provided in the mounting groove 6. The spring 2 is used to push one end of the fixing block 5 to the outside of the mounting groove 6 for locking.

[0025] The staple cartridge 10 has an axially formed docking groove 13, which is used to match and dock with the connecting part 7 so that the beak part 1 is installed at the front end of the staple cartridge 10. The bottom wall of the docking groove 13 has a locking groove 11 for embedding the fixing block 5.

[0026] When the connecting part 7 is inserted into the docking groove 13, the fixing block 5 compresses the spring 2 to completely hide the fixing block 5 in the mounting groove 6. When the connecting part 7 is fully inserted into the docking groove 13, under the action of the spring force of the spring 2, one end of the fixing block 5 will be pushed into the locking groove 11, thereby restricting the connecting part 7 from being pulled out of the docking groove 13.

[0027] refer to Figure 1 As shown, in this embodiment, in order to make the fixing block 5 rotate within the mounting groove 6, the fixing hole 8 that is radially through the connecting part 7 matches the pin hole 4 that is opened on the fixing block 5, and a pin 9 is inserted into the fixing hole 8 and the pin hole 4 to realize the rotation of the fixing block 5.

[0028] refer to Figure 3 and Figure 9 As shown, in this embodiment, the cross-section of the connecting part 7 is an irregular structure, which helps to ensure the stability of the connecting part 7 after it is connected with the docking groove 13.

[0029] In this embodiment, the fixing block 5 is provided with a positioning groove 3 for accommodating the spring 2. This design ensures that the spring 2 is always kept in the positioning groove 3, preventing the spring 2 from moving.

[0030] refer to Figure 6 As shown, in this embodiment, the connecting part 7 is radially provided with an unlocking hole 12 that communicates with the mounting groove 6, which is used to unlock the connecting part 7 and the docking groove 13. By inserting a thin needle into the unlocking hole 12, the thin needle pushes the end of the fixing block 5 away from the spring 2 to move. Under the action of the lever principle, the fixing block 5 will be completely hidden in the mounting groove 6. At this time, the connecting part 7 can be pulled out from the docking groove 13.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-release laparoscopic stapler cartridge with an elastic locking mechanism, characterized in that, It includes a beak part (1), and a connecting part (7) is connected to its rear end. The connecting part (7) is axially provided with a mounting groove (6) for accommodating a fixing block (5). The fixing block (5) is rotatably disposed in the mounting groove (6). A spring (2) is provided in the mounting groove (6). The spring (2) is used to push one end of the fixing block (5) to the outside of the mounting groove (6). The staple cartridge (10) has an axially formed docking groove (13) on its upper side. The docking groove (13) is used to match and dock with the connecting part (7) so that the beak part (1) is installed at the front end of the staple cartridge (10). The bottom wall of the docking groove (13) has a locking groove (11) for embedding the fixing block (5). When the connecting part (7) is inserted into the docking groove (13), the fixing block (5) compresses the spring (2) to make the fixing block (5) completely hidden in the mounting groove (6). When the connecting part (7) is fully inserted into the docking groove (13), under the action of the spring force (2), one end of the fixing block (5) will be pushed into the locking groove (11), thereby restricting the connecting part (7) from being pulled out of the docking groove (13).

2. The quick-release endoscopic stapler cartridge with an elastic locking mechanism as described in claim 1, characterized in that: The fixing hole (8) that is radially through the connecting part (7) matches the pin hole (4) that is opened on the fixing block (5). A pin (9) is inserted into the fixing hole (8) and the pin hole (4) to realize the rotation of the fixing block (5).

3. The quick-release endoscopic stapler cartridge with an elastic locking mechanism as described in claim 1, characterized in that: The cross-section of the connecting part (7) is an irregular structure.

4. The quick-release endoscopic stapler cartridge with an elastic locking mechanism as described in claim 1, characterized in that: The fixing block (5) is provided with a positioning groove (3) for accommodating the spring (2).

5. The quick-release endoscopic stapler cartridge with an elastic locking mechanism as described in claim 1, characterized in that: The connecting part (7) is radially provided with an unlocking hole (12) that communicates with the mounting groove (6).

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