CN2531806Y

CN2531806Y - Recoreable esophags-bronchial support

Info

Publication number: CN2531806Y
Application number: CN02219251U
Authority: CN
Inventors: 王震; 吴雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-08
Filing date: 2002-03-08
Publication date: 2003-01-22
Anticipated expiration: 2012-03-08

Abstract

The utility model discloses a retrievable stent for an esophagus and a trachea. One lap of retrievable coil (4) having a coherent length with the circumstance of the inner edge is designed on the inner edge of the upper port (1) of an existing covered stent. A nylon line orderly circumambulates and passes through the end point of the stainless steel frame on the upper port. A flexible connection is adopted between every two frames of the stent, which means that a certain distance is spaced between two frames (3) and the two frames are connected through a nylon coil (2) and a film (5). When the retrievable coil is hooked by a retriever, the upper port of the stent shrinks and is gathered round, which makes the stent convenient to be taken out of the body of a patient. The utility model has reasonable structure, convenient and reliable operation, can relieve the pain of the patient, and is an ideal replacement of an existing stent.

Description

Recoverable esophagus trachea bracket

Affiliated technical field

This utility model belongs to medical apparatus, is specifically related to a kind of structure of recoverable esophagus trachea bracket.

Background technology

Esophagus tracheal stenosis patient or due to illness alter into the patient that the esophagus trachea narrows down, for prolonging survival time of patients, improve patient's quality of life, patient to some inapplicable operations all adopts support expansion method except that operative treatment at present, the support that is used for the esophagus tracheaectasy is existing multiple, the application clinically of these supports is to alleviating patient's misery, prolonging patient's life plays a good role, but present various supports mostly are disposable implantation greatly and can not take out, as Chinese patent ZL95239287.9 ZL97207244.6 ZL97207328.0 etc., what also have can take out, as ZL95241211.X but unreasonable structure, the taking-up difficulty is big, increases patient's misery.

Summary of the invention

The purpose of this utility model is: design a kind of recoverable esophagus trachea bracket, can take out from patient's esophagus or trachea easily in case of necessity.

The purpose of this utility model is achieved in that on " Z " of the upper oral part of covered stnet type stainless steel insert nylon wire, order is passed support skeleton end points, link to each other with the nylon wire that girth equates with support inner edge suitable for reading, for avoid because of the support implant into body time longer, support hypertrophy in a organized way suitable for reading, hide recovery nylon wire suitable for reading, the prolongation of recovery nylon wire can be the figure of eight and place support interior bottom suitable for reading, can be by recover easily with its taking-up; Every joint skeleton of support connects employing and is flexible coupling, and is promptly separated by a distance between the two joint skeletons, connect by nylon wire and symphysis therebetween.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Among the figure: 1 support is suitable for reading, 2 skeleton nylon coils, 3 " Z " stainless steel insert, 4 recovery coil, 5 films

The specific embodiment

As shown in Figure 1, sentencing nylon wire at support suitable for reading 1 passes stainless steel insert 3 end points and detours in proper order and form recovery coil 4.

For avoiding the hamartoplasia covering suitable for reading, place bottom suitable for reading by " 8 " type that recovery coil 4 can be made into to support.

3 employings of every joint skeleton of support are flexible coupling, promptly separated by a distance between the two joint skeletons 3 as 1-10mm, by high strength skeleton nylon wire circle 2 and silicone rubber membrane or 5 connections of other polymer material film, all energy is crooked to make every joint skeleton junction, improves vertical compliance of support therebetween.

When needing to take out support, fibergastroscope is put in esophagus or the trachea, observe support suitable for reading 1 find after the recovery coil 4 the support recover pierced into gastroscope work pick up the hole stretch into support suitable for reading in, crotch is hooked recovery coil, and it is hooked in the sleeve pipe, the hole is picked up in the work of income gastroscope, and support contraction suitable for reading is at this moment gathered, and just can take out from esophagus or trachea easily.

This utility model is convenient and reliable rational in infrastructure, can be picked and placeed by the patient of putting support at any time, is to substituting with a kind of of fore-stock, improving the accuracy that picks and places support and alleviate patient's misery.

Claims

1, recoverable esophagus trachea bracket, constitute by " Z " type stainless steel silk skeleton (3) film (5), it is characterized in that: the inner edge at support (1) suitable for reading has the circle recovery coil (4) consistent with the inner edge girth, and nylon wire detours in proper order to pass through " Z " type stainless steel insert (3) end points from support external diameter suitable for reading and forms recovery coil (4).

2, a kind of recoverable esophagus trachea bracket according to claim 1 is characterized in that: recovery coil (4) is " 8 " shape, is positioned at the below of inwall suitable for reading.

3, a kind of recoverable esophagus trachea bracket according to claim 1 is characterized in that: adopts between every joint skeleton (3) of support to be flexible coupling, and promptly separated by a distance between the two joint skeletons (3), connect by nylon coil (2) and film (5) therebetween.