CN2915039Y - An absorptive 'stomach jacket' capable of preventing re-bleeding after portal-systemic disconnection operation - Google Patents

Abstract

The utility model relates to a bioabsorbable stomach jacket for avoiding re-bleeding after devascularization, characterized in that the stomach jacket is made of a bioabsorbable medical membrane and has the shape anastomosing with the shape of the oesophagus and the bottom of the stomach, and comprising an oesophagus upper inclusion 3, a stomach-bottom lower inclusion 1 and a suture edge 2, with a global plane formed by the upper and lower inclusions symmetric in the central line. The utility model can cover the wound of the oesophagus and the bottom of the stomach completely and appropriately to isolate the lower part of the oesophagus and the bottom of the stomach with the surrounding tissue. In this way, the tissue adhesion because of the wound's anastomosing with each other can be prevented and the wound can form be repaired without tissue adhesion. After the wound repair the bioabsorbable medical membrane can be degraded and absorbed little by little within the predetermined period. Therefore, the stomach jacket can prevent the adhesion of the tissue surrounding the oesophagus and the bottom of the stomach, the re-formation of the collateral circulation and the re-bleeding after devascularization.

Description

A kind ofly can prevent body cutout recurrent bleeding and an absorbable stomach vest

Technical field

This utility model relates to the medical film that surgical operation uses, and specifically is a kind ofly can prevent a body cutout recurrent bleeding and an absorbable stomach vest.

Technical background

In the surgical intervention of portal hypertension, a door body disconnection have safety, reliable, indication is wide, do not reduce portal vein pressure, keep to advantages such as liver blood streams, but postoperative still has part patient recurrence hemorrhage again (3.4～67%).Illustrate that recurrent bleeding is one of subject matter of body disconnection existence.

It is an one of the main reasons of vena systemica cutout recurrent bleeding that wound surface adhesion, newborn collatoral vessel are set up again.Experimentation also finds that the blood vessel number of each layer of esophagus unit are of portal hypertension Mus and relative area stopped back 30 days all apparently higher than normal mice, blood vessel number and blood vessel area significantly reduce, but postoperative 100 days, blood vessel number and blood vessel area significantly increase again, surpass normally preceding similar to art.This result proves that the reason of cutout recurrent bleeding is near the adhesion operating field, blood vessel hyperplasia, and side is propped up due to the formation between the door vena systemica.Therefore, stop tissue adhesion and the side Zhi Xunhuan that causes forms, to preventing the positive clinical meaning that has of a body cutout recurrent bleeding.

The Biodegradable polymer material polylactic acid is a kind of medical material of nontoxic, no antigen.The biological absorbable medical film of making by polylactic acid, have better biocompatibility, flexibility, degradable absorbability, can degrade fully and absorb in vivo, finally produce carbon dioxide and water excretes, be to prevent tissue adhesion one of medical macromolecular materials preferably at present.It prevents that the mechanism of adhesion from mainly being to invade to surgical wound surface by fibroblast in the prevention surrounding tissue, and avoid the postoperative fibrin ooze out the reaction peak (3～5 days) just begin afterwards the degraded (2 weeks of postoperative, degraded fully after about 8 weeks) time difference effect, thereby have the effect that prevents the tissue adhesion.

The medical film that present each medical institutions use, when dispatching from the factory, be rectangle or foursquare planar structure, directly existing medical film is used for a body disconnection, because the special shape of stomach, have a lot of inconveniences, for example on-the-spot cutting in operation was both taken time, the expensive raw material of waste has increased extra financial burden to patient again; And can only drape over one's shoulders on the Weishang sometimes, and can not wear, do not conform to very much body of stomach, be not easy to sew up, owing to there are a lot of gauffers, a lot of slits are always arranged at these fold places, can not effectively stop the exotic intrusion.

Summary of the invention

The purpose of this utility model provides and a kind ofly can prevent body cutout recurrent bleeding and an absorbable stomach vest, the biological absorbable medical film that it adopts polylactic acid to make, make the shape that matches with esophagus, stomach Bottom Shape, wound surface at the bottom of appropriate and complete parcel esophagus and the stomach, separate fully with surrounding tissue at the bottom of making distal esophagus and stomach, stop damage wound surface in two places because of the adhesion between the involutory tissue that takes place mutually, wound surface is moved under water through the peritoneum epithelium cover to form no adhesive reparation, and the artifact absorbable medical film will be in the time of designing degraded and absorbed gradually.Thereby adhesion and side Zhi Xunhuan around stoping behind the door body disconnection at the bottom of the esophagus and stomach form again, come the hemorrhage again generation of prevention of postoperative.And utilized the area of medical film as much as possible, reduced unnecessary waste.

Above-mentioned purpose of the present utility model is to realize by such technical scheme, be a kind ofly can prevent body cutout recurrent bleeding and an absorbable stomach vest, the shape of making for biological absorbable medical film that matches with esophagus, stomach Bottom Shape, wrap up lower body and joining edge at the bottom of comprising esophagus parcel upper body, stomach, the described integral planar left-right symmetric of lower body formation that goes up is in centrage.

Behind the door body disconnection, with the stomach vest of said structure to folded be wrapped in upper body and lower body at the bottom of the esophagus stomach function regulating respectively on, and the limit and other limit that overlap behind the parcel sewed up each other or with coat of the stomach, observe by clinic trial, described stomach vest is appropriate smooth to be wrapped at the bottom of the stomach and on the esophagus, adhesion and side Zhi Xunhuan around effectively stoping behind the door body disconnection at the bottom of the esophagus and stomach form again, come the hemorrhage again generation of prevention of postoperative.Because the medical film that described stomach vest adopts has better biocompatibility, flexibility, degradable absorbability, can degrade fully and absorb in vivo, finally produce carbon dioxide and water excretes.

Description of drawings

Said structure of the present utility model can further specify by the embodiment that accompanying drawing provides.

Accompanying drawing 1 is that structure of the present utility model is launched sketch map;

Accompanying drawing 2 is a user mode reference view of the present utility model.

In the accompanying drawing: parcel lower body, 2-joining edge, 3-esophagus parcel upper body, 4-stomach at the bottom of the 1-stomach.

The specific embodiment

Referring to accompanying drawing: can prevent in the accompanying drawing that a body cutout recurrent bleeding and absorbable stomach vest from being the shape that matches with esophagus, stomach Bottom Shape that biological absorbable medical film is made, wrap up lower body 1 and joining edge 2 at the bottom of comprising esophagus parcel upper body 3, stomach, the integral planar left-right symmetric that described upper and lower body constitutes is in centrage.

In an embodiment, relative other the segment thickness thickening of the joining edge 2 of all or part.

This utility model is through clinical practice 50 examples, and untoward reaction such as nontoxic pair, allergy are looked in clinical sight.During use this utility model wrapped up in invest lower esophageal and stomach at the bottom of, body cutout part and peripheral regions, outward appearance likeness in form stomach vest shape.The lower edge with sutured around No. 0 silk thread interruption and esophagus, the body of stomach, comes off to prevent medical film respectively on the stomach vest.Biology can absorb the stomach vest insert after, abdominal cavity infection does not take place in no abnormal heating and anaphylaxis, does not have hydrops sign around the ultrasound diagnosis stomach vest.Routine blood test, the no abnormal change of hepatic and renal function.The otch I phase heals, and routine is taken out stitches on schedule.The stomach vest complete packet wound surface at the bottom of esophagus and stomach that matches with the stomach Bottom Shape is described, separate fully with surrounding tissue at the bottom of making distal esophagus and stomach, utilize the method for its mechanical isolation, stop damage wound surface in two places because of the adhesion between the involutory tissue that takes place mutually, wound surface is moved under water through the peritoneum epithelium cover to form " no adhesive " and repair, and the artifact absorbable medical film will be in the time of design degraded and absorbed gradually.Thereby adhesion and side Zhi Xunhuan around stoping behind the door body disconnection at the bottom of the esophagus and stomach form again, have prevented the generation of recurrent bleeding.

Claims (2)

1, a kind ofly can prevent body cutout recurrent bleeding and an absorbable stomach vest, it is characterized in that: the shape of making for biological absorbable medical film that matches with esophagus, stomach Bottom Shape, wrap up lower body (1) and joining edge (2) at the bottom of comprising esophagus parcel upper body (3), stomach, the described integral planar left-right symmetric of lower body formation that goes up is in centrage.

2, according to claim 1ly can prevent body cutout recurrent bleeding and an absorbable stomach vest, it is characterized in that: the joining edge of all or part (2) is other segment thickness thickening relatively.