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Anastomat for procedure for prolapse and hemorrhoids

A technology of hemorrhoid mucosa and stapler, which is applied in the field of medical devices and can solve problems such as medical accidents, wrong assembly of suture needles, and stapler problems.

Active Publication Date: 2013-07-31
吴伟敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The staple cartridge of the above-mentioned stapler has three circles of tissue contact surfaces with different heights, and the heights of the contact surfaces of the corresponding nail anvils remain the same, but when the staples with different lengths are assembled into the corresponding nail grooves of the nail pushing device , because the distance between the nail groove and the nail groove is very small, it is very easy for the assembler to assemble the needle into the wrong nail groove, which will cause problems in the use of the stapler and may cause corresponding medical accidents

Method used

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  • Anastomat for procedure for prolapse and hemorrhoids
  • Anastomat for procedure for prolapse and hemorrhoids
  • Anastomat for procedure for prolapse and hemorrhoids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0067] See Figure 1 to Figure 2 , The stapler for suprahemorrhoidal circumcision of the present embodiment is composed of a nail abutment assembly 1 and a nail pushing device. The nail pushing device includes a nail barrel assembly 2 , a stapler body 3 , a handle assembly 4 , a screw assembly 5 , a push rod 61 , a control assembly 7 and a safety mechanism 8 .

[0068] See image 3 , The nail anvil assembly 1 includes a nail anvil 11 , a seat cap 12 , a spacer ring 13 and a positioning circlip 14 .

[0069] See Figure 4 to Figure 7 The nail anvil 11 is a steel integral piece with a central stepped hole 11-1, consisting of a seat main part 11a located on the outer periphery of the upper side and a central lower part connected to the seat main part 11a and located at the center of the seat main part 11a. The first connection part 11b is formed.

[0070] The main body part 11 a is circular in plan view as a whole, and the main body part 11 a is provided with a first central ...

Embodiment 2）

[0102] See Figure 8 and Figure 11 , the stapler for suprahemorrhoidal circumcision of the present embodiment is basically the same as that of Embodiment 1, except that the height of the upper end surface of the main body 11a of the anvil 11 is the same, that is, the nail grooves are distributed in three circles. The upper and lower positions of the nails are the same; and the lower end surface of the staple bin cover 22 is in the shape of a ladder with a high outside and a low inside, and the height a at the step is 0.3mm;

[0103] The 11 staples 21 of the outermost ring in the staple bin cover 22 are distributed in a higher position on the outside of the step, and the height positions of the 11 staples 21 of the outermost ring on the staple bin cover 22 are higher than those of the inner ring. The height positions where the 22 staples 21 are distributed are 0.3 mm higher. The stapler does not excessively press the tissue during anastomosis, resulting in necrosis and shedd...

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PUM

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Abstract

The invention discloses an anastomat for a procedure for prolapse and hemorrhoids. The anastomat comprises a screw abutting seat component and a screw pushing device. The screw pushing device comprises a screw barrel component, an anastomat body and the like. The screw barrel component comprises anastomosis screws, a screw bin cover and a screw bin sleeve. The screw bin cover is connected onto the screw bin sleeve, and the anastomosis screws are placed in corresponding screw bin holes of the screw bin sleeve. The screw abutting seat component comprises a seat cap, a scalpel gasket, a screw seat rod and a screw abutting seat. The screw abutting seat is a steel integral part with a central step hole and comprises a seat body main portion and a connecting portion connected to the center of the lower side of the seat body main portion. Three circles of screw grooves which are distributed in a concentric circles manner are arranged on the upper end surface of the seat body main portion from inside to outside. The upper end surface of the seat body main portion of the screw abutting seat is in the shape of a step with the low outside and the high inside, and all the screw grooves on thethird circle are arranged on the lower portion of the outer side of the upper end surface of the seat body main portion; or the lower end surface of the screw bin cover is in the shape of a step withthe high outside and the low inside, and the anastomosis screws on the outermost circle in the screw bin cover are distributed in the higher portion of the outer side of the step of the screw bin cover.

Description

technical field [0001] The invention relates to a medical device, in particular to a stapler for circumcision of suprahemorrhoidal mucosa. Background technique [0002] Minimally invasive hemorrhoid surgery (PPH), also known as stapler hemorrhoidal circumcision, is suitable for all kinds of hemorrhoids, especially for patients with severe internal hemorrhoids and partial rectal mucosal prolapse. Anal pads, using a stapler to resect part of the internal hemorrhoids and hemorrhoidal mucosa and submucosal tissue circularly at the same time, so as to block the blood supply of the hemorrhoids, suspend and fix the slipped tissue, and fix the pathological anal canal and rectum Return to normal anatomical state. The stapler mainly includes a nail pushing device and an abutment seat assembly connected to the nail pushing device. After the operator is ready to fire the stapler, when the operator pulls the trigger to fire the stapler, the staple pushing device will pass the staple nee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/115
Inventor 吴伟敏
Owner 吴伟敏