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a surgical stapler

A stapler and a surgical technique are applied to a surgical stapler. , In the field of surgical instruments, it can solve the problems of tissue overflow, tissue cannot be completely cut, and the cutter cannot separate the two ends, so as to achieve the effect of preventing tissue overflow

Active Publication Date: 2019-07-02
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual use process, the tissue is squeezed by the staple cartridge and the anvil, and it is easy to be flattened, causing the tissue at both ends to overflow, and the cutter cannot separate the overflowing tissue at both ends, resulting in the problem that the tissue cannot be completely cut off

Method used

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  • a surgical stapler
  • a surgical stapler
  • a surgical stapler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see Figure 1 to Figure 6 , shows the surgical stapler of Embodiment 1 of the present invention. see Figure 1 to Figure 2 , The surgical stapler according to Embodiment 1 of the present invention mainly includes: an instrument body 100 , a handle portion 200 disposed at the proximal end of the body 100 , and a nail head 300 disposed at the proximal end of the body 100 .

[0032] The instrument body 100 includes a bracket 101 having a distal end and a proximal end. The handle portion 200 includes a grip 201 and the like to be held by the surgeon's hand.

[0033] The nail head 300 includes a nail cartridge assembly 1, an anvil 2 and a tissue overflow prevention mechanism (not labeled).

[0034] Preferably, in this embodiment, the nail head 300 is curved, and the surgical stapler is a curved stapler, see Figure 1 to Figure 3 , the nail head 300 includes a U-shaped support structure 3 for supporting and installing the nail cartridge assembly 1 and the anvil 2 . The n...

Embodiment 2

[0057] The difference between the surgical stapler of embodiment 2 and embodiment 1 is as follows:

[0058] see Figure 7 and Figure 8 , the staple cartridge surface 11a of the staple cartridge 11 is provided with a spacer 111 for isolating tissue and the two extensions 14 , 15 .

[0059] Specifically, the cartridge surface 11a is provided with mounting holes 11d through which the two extensions 14 and 15 protrude, and the cartridge surface 11a is also provided with two spacers 111 for isolating tissues and the two mounting holes 11d respectively. Such as Figure 7 As shown, the spacer 111 is located on the inner side of the installation hole 11d in contact with the tissue and protrudes toward the distal end. The spacer 111 can isolate the tissue and the installation hole 11d on the plane where the staple cartridge surface 11a is located, thereby isolating the tissue and the extensions 14, 15 .

[0060] Preferably, when the staple cartridge 11 is at a close position relat...

Embodiment 3

[0070] The surgical stapler of embodiment 3, which includes an instrument body, a handle portion disposed at the proximal end of the body, and a nail head disposed at the distal end of the body, wherein the nail head includes a staple cartridge assembly, an anvil, and a tissue overflow prevention mechanism; The staple cartridge assembly includes a staple cartridge and a cutting knife movably arranged in the staple cartridge; the anvil block includes a knife anvil and a staple anvil located at the far end of the staple cartridge, and the knife anvil is provided with a cutting gasket corresponding to the cutter; the staple cartridge is opposite The anvil is movable relative to one another between a spaced position and an approximated position; the cutter is actuatably protruded from the staple cartridge and advanced to the cutting washer.

[0071] The overall structure of Embodiment 3 is roughly the same as that of Embodiment 1. Please refer to the relevant descriptions in Embodi...

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PUM

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Abstract

The invention relates to a surgical anastomat. The surgical anastomat comprises an instrument body, a handle part arranged at the near end of the body and a nail head part arranged at the far end of the body. The nail head part comprises a nail bin assembly, an anvil stand and a tissue anti-spilling mechanism. The nail bin assembly comprises a nail bin and a cutter movably arranged in the nail bin. The anvil stand comprises a cutter anvil located at the far end of the nail bin and a nail anvil. The cutter anvil is provided with a cutting gasket corresponding to the cutter. The tissue anti-spilling mechanism comprises two extending parts extending from the nail bin to the anvil stand. The two extending parts can maintain the tissue between the two extending parts. The inside corresponding to the tissue which is in contact with each extending part is provided with a guiding structure along the length direction. Each guiding structure is provided with a smooth surface and an abutting surface. The surgical anastomat can help prevent the tissue from overflowing during operation of the surgical anastomat so that the tissue can be completely broken.

Description

technical field [0001] The invention belongs to the field of medical instruments, and relates to a surgical instrument, in particular to a surgical stapler. Background technique [0002] Stapler is a medical device that replaces manual suturing. It is widely used in surgical anastomosis of digestive tract physiological tissues such as intestines. The main working principle is to use cutters and staples to separate and anastomose tissues. [0003] Typically, a surgical stapler includes a staple cartridge assembly, an anvil, a closing mechanism, and a firing mechanism, wherein the staple cartridge assembly includes a staple cartridge containing staples and a cutter, wherein generally at least one row of staples is arranged on both sides of the cutter. Nails; the anvil includes an anvil; the closing mechanism is used to make the staple bin and the anvil approach each other, thereby clamping the contained tissue between the staple bin and the anvil; the firing mechanism is used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/115A61B17/3209
CPCA61B17/1114A61B17/1155A61B17/3209
Inventor 陈望东单腾
Owner TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD