CN212015682U

CN212015682U - Locating and falling mechanism for biological patches on far end of nail anvil assembly of endoscopic anastomat

Info

Publication number: CN212015682U
Application number: CN202020264289.9U
Authority: CN
Inventors: 冯亚; 赵星海; 丁剑科; 李强
Original assignee: Wuxi Beien Surgery Device Co ltd
Current assignee: Wuxi Beien Surgery Device Co ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-11-27
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a location shedding mechanism of biological patch on chamber mirror anastomat nail anvil subassembly distal end, including buckle and backing sheet, the buckle is including integrative slider and the hook piece that sets up, the slider is located nail anvil bottom plate upper surface and can follows the slip of nail anvil bottom plate, and the nail anvil bottom plate leaves the straight slot hole in slider front end department, the hook piece runs through the straight slot hole and is located nail anvil bottom plate lower surface, backing sheet and biological patch fixed connection, the backing sheet is the L type, leave the gap between backing sheet and the biological patch, the hook piece can imbed in the gap and contradict the backing sheet with fixed biological patch, during the use, the cutting knife acts on the slider, the slider drives the hook piece and breaks away from the gap between backing sheet and the biological patch in order to release biological patch, not only can fix biological patch, and can make biological patch drop smoothly and the laminating wound after.

Description

Locating and falling mechanism for biological patches on far end of nail anvil assembly of endoscopic anastomat

Technical Field

The utility model relates to an endoscope anastomat, in particular to a mechanism that drops in location of biological patch on endoscope anastomat nail anvil subassembly distal end.

Background

Surgeons usually use endoscopic staplers after surgical excision of cancerous parts of tubular body tissues, such as the intestine, esophagus, stomach, and lung lobes. The principle is as follows: the incision was performed while suturing while maintaining a certain blood supply.

The biological patch can enhance the tensile strength of a cut tissue part during operation, improve the sealing performance of an anastomotic stoma, reduce the cutting of anastomotic nails to the tissue in the closing process, prevent the rupture and bleeding of the anastomotic stoma, accelerate the healing of wounds after the operation and reduce the condition of the fistula. At present, the processing method of the far end of the nail anvil component in the market is complex, and the phenomenon that the biological patch at the far end of the nail anvil component is not easy to fall off exists.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a location of biological patch mechanism that drops on chamber mirror anastomat nail anvil subassembly distal end not only can fix biological patch to can make biological patch drop smoothly and the wound of laminating after the cutting.

The technical scheme is as follows: a location shedding mechanism of biological patch on chamber mirror anastomat nail anvil subassembly distal end, including buckle and backing sheet, the buckle is including integrative slider and the hook piece that sets up, the slider is located nail anvil bottom plate upper surface and can follows the slip of nail anvil bottom plate, and the nail anvil bottom plate leaves the straight slot hole in slider front end department, the hook piece runs through the straight slot hole and is located nail anvil bottom plate lower surface, backing sheet and biological patch fixed connection, the backing sheet is the L type, leave the gap between backing sheet and the biological patch, the hook piece can imbed in the gap and contradict the backing sheet with fixed biological patch, during the use, the cutting knife acts on the slider, the slider drives the hook piece and breaks away from the gap between backing sheet and the biological patch in order to release biological patch.

Through adopting above-mentioned technical scheme, when the cutting knife was cut along the path direction, when the nail anvil near-end was passed through to the cutting mode same with on the former market, all was that the cutting knife cuts off the glued silk of nail anvil near-end for the biological patch of nail anvil near-end drops, and the cutting knife is when the path to nail anvil distal end, and the cutting knife promotes the slider, and the slider drives the hook piece and breaks away from the gap between backing sheet and the biological patch, makes the biological patch drop completely on the nail anvil subassembly.

The correction block is arranged on the lower surface of the nail anvil baseplate and is positioned at the joint of the biological patch and the support sheet, the correction block is provided with an L-shaped groove to be matched with the support sheet, and the correction block is used for enabling the biological patch to be attached to the lower surface of the nail anvil baseplate.

Furthermore, the contact part of the hook block and the support sheet is horizontal, and the hook block support sheet and the biological patch are in interference fit.

Furthermore, the front end of the part, embedded into the gap, of the hook block is provided with a slope surface so as to facilitate the embedding of the hook block into the gap.

Furthermore, the whole thickness of the sliding block is close to the space formed between the nail anvil bottom plate and the nail anvil upper cover so as to keep the sliding block to horizontally slide on the nail anvil bottom plate when the sliding block is subjected to the thrust of the cutting knife or external force.

Has the advantages that: compared with the prior art, the utility model: not only has reasonable structure, simple operation and high safety, but also ensures the fixing reliability and the falling fluency of the biological gasket on the far end of the nail anvil component.

Drawings

FIG. 1 is an exploded view of an endoscopic stapler at the anvil;

fig. 2 is a schematic partial cross-sectional view of an anvil of an endoscopic stapler.

Detailed Description

As shown in fig. 1 and 2, the endoscopic stapler comprises a nail anvil 5, a nail anvil upper cover 6, a glue wire 8, a biological patch 7 and a positioning and dropping mechanism. The nail anvil 5 and the nail anvil upper cover 6 are welded together by laser, the glue wire 8 is positioned at the near end of the nail anvil 5, the glue wire 8 is fixed on the bottom plate of the nail anvil 5 in a hot melting mode, the glue wire 8 is U-shaped, and the horizontal section of the glue wire 8 supports the lower surface of the biological patch 7 so as to fix the biological patch 7 on the lower surface of the bottom plate of the nail anvil 5.

The falling mechanism is positioned at the far end of the bottom plate of the anvil 5, fixes the biological patch 7 at the far end of the bottom plate of the anvil 5 and releases the biological patch 7 from the far end of the bottom plate of the anvil 5. The mechanism that drops includes fixed buckle 1 and backing sheet 2, buckle 1 is including integrative slider 11 and the hook 12 that sets up, slider 11 is located nail anvil 5 bottom plate upper surface and can slide along nail anvil 5 bottom plate, and nail anvil 5 bottom plate leaves the slotted hole at slider 11 front end, hook 12 runs through the slotted hole and is located nail anvil 5 bottom plate lower surface, backing sheet 2 and biological patch 7 fixed connection, backing sheet 2 is the L type, leave the gap between backing sheet 2 and the biological patch 7, hook 12 can imbed in the gap and contradict backing sheet 2 with fixed biological patch 7, in the use, the cutting knife acts on slider 11, slider 11 drives hook 12 and breaks away from the gap between backing sheet 2 and the biological patch 7 in order to release biological patch 7.

In order to attach most of the biological patch 7 to the lower surface of the bottom plate of the nail anvil 5, the lower surface of the bottom plate of the nail anvil 5 is provided with the correction block 3, the correction block 3 is positioned at the joint of the biological patch 7 and the support sheet 2, the correction block 3 is provided with an L-shaped groove to match with the support sheet 2, and the correction block 3 is used for attaching the biological patch 7 to the lower surface of the bottom plate of the nail anvil 5.

In order to facilitate the sliding between the hook block 12 and the support plate 2, the contact part of the hook block 12 and the support plate 2 is horizontal. In order to maintain the stability of fixation, the hook block 12 supports the sheet 2 and the biological patch 7 in an interference fit.

In order to reduce the installation difficulty between the hook block 12 and the support sheet 2 and the biological patch 7, the front end of the part of the hook block 12 inserted into the gap is provided with a slope 4 so as to facilitate the hook block 12 to be inserted into the gap.

The whole thickness of the slide block 11 is close to the space formed between the bottom plate of the anvil 5 and the upper cover 6 of the anvil to keep the slide block 11 horizontally sliding on the bottom plate of the anvil 5 when the slide block is pushed by a cutting knife or an external force.

The working principle is as follows: when the cutting knife cuts along the line path direction and passes through the near end of the nail anvil 5, the cutting mode is the same as that on the original market, the cutting knife cuts off the rubber thread 8 at the near end of the nail anvil 5, so that the biological patch 7 at the near end of the nail anvil 5 falls off, when the cutting knife reaches the far end of the nail anvil 5 in the line path, the cutting knife pushes the sliding block 11, the sliding block 11 drives the hook block 12 to break away from the gap between the support sheet 2 and the biological patch 7, so that the biological patch 7 on the nail anvil 5 assembly completely falls off.

Claims

1. The utility model provides a location of biological patch mechanism that drops on chamber mirror anastomat nail anvil subassembly distal end, its characterized in that includes buckle (1) and backing sheet (2), buckle (1) is including integrative slider (11) and hook (12) that set up, slider (11) are located nail anvil (5) bottom plate upper surface and can slide along nail anvil (5) bottom plate, and nail anvil (5) bottom plate leaves the slotted eye at slider (11) front end, hook (12) run through the slotted eye and are located nail anvil (5) bottom plate lower surface, backing sheet (2) and biological patch (7) fixed connection, backing sheet (2) are the L type, leave the gap between backing sheet (2) and biological patch (7), hook (12) can imbed in the gap and contradict backing sheet (2) with fixed biological patch (7), in the use, act on slider (11), slider (11) drive hook (12) break away from the gap between backing sheet (2) and biological patch (7) in order to release biological patch (7), (biological patch) 7).

2. The positioning and releasing mechanism for the biological patch on the far end of the anvil assembly of the endoscopic stapler according to claim 1, further comprising a correction block (3), wherein the correction block (3) is arranged on the lower surface of the anvil plate (5), the correction block (3) is arranged at the joint of the biological patch (7) and the support plate (2), the correction block (3) is provided with an L-shaped groove to match with the support plate (2), and the correction block (3) is used for the biological patch (7) to be attached to the lower surface of the anvil plate (5).

3. The positioning and releasing mechanism of the biological patch on the far end of the anvil assembly of the endoscopic stapler according to claim 1, wherein the contact part of the hook block (12) and the support sheet (2) is horizontal, and the interference fit between the support sheet (2) and the biological patch (7) is realized by the hook block (12).

4. The mechanism for positioning and releasing the biological patch on the far end of the anvil assembly of the endoscopic stapler according to claim 3, wherein the front end of the part of the hook block (12) inserted into the slit is provided with a slope (4) to facilitate the hook block (12) to be inserted into the slit.

5. The locating and releasing mechanism of the biological patch on the far end of the anvil assembly of the endoscopic stapler according to claim 1, characterized in that the overall thickness of the slide block (11) is close to the space formed between the bottom plate of the anvil (5) and the upper cover (6) of the anvil to keep the slide block (11) to slide horizontally on the bottom plate of the anvil (5) when the slide block is pushed by a cutting knife or an external force.