CN88211372U

CN88211372U - Double-chamber air sac duct

Info

Publication number: CN88211372U
Application number: CN 88211372
Authority: CN
Inventors: 李华泰
Original assignee: JIANGXI HOSPITAL
Current assignee: JIANGXI HOSPITAL
Priority date: 1988-01-22
Filing date: 1988-01-22
Publication date: 1988-12-28

Abstract

The utility model relates to a double-chamber air sac guiding pipe for the separation operation of aortic stenosis, mitral stenosis, pulmonary stenosis, and non-thoracotomy type hearts. The double-chamber air sac guiding pipe is composed of an air sac, a soft outer guiding pipe, a soft inner guiding pipe, a hard outer guiding pipe, a Y-shaped pipe, a needle head and a seal component. Compared with the existing air sac guiding pipe, the utility model has the advantages of simple structure, convenient operation, and high reliability.

Description

Double-chamber air sac duct

This utility model relates to a kind of medical apparatus and instruments, in particular for the foley's catheter of non-open chest heart, Bicuspid valve, valve of pulmonary trunk or aortic stenosis exclusion.

Foley's catheter is to arrive narrow Bicuspid valve by the catheter proximal end percutaneous puncture being inserted femoral vein, right atrium, interatrial septum and left atrium, and swelling gasbag is realized narrow exclusion then.Present existing balloon catheter is shown in Fig. 1, Fig. 2, Fig. 2 ', and the air bag of catheter head is made up of external capsule 1, fabric web 2, capsula interna 3 and belt 4, and the conduit middle part is made up of soft outer catheter 6, rigid outer catheter 9, inner catheter 7 and exhaustor 8.Catheter tail is connected with two Y-pieces, draw inner catheter 7 in the Y-piece 10, and sealed tube 11 is housed, draw exhaustor 8 in the Y-piece 12, and sealed tube 13 is housed, the termination of inner catheter 7 is connected with syringe needle 14, anchorage clip 17 is contained in the b place on the sealed tube 11, by tightening trip bolt 16 that inner catheter 7 is fixing, the end of exhaustor 8 is provided with an airtight plug 15, and a mouth of Y-piece 12 is connected with syringe.This balloon catheter structure more complicated, the branch fork is many, troublesome poeration, sealed tube 11 causes inner catheter 7 telescopic movings dumb easily, implement aerofluxus and fixedly the operation of inner catheter is also cumbersome, when swelling gasbag, can produce certain intrinsic pressurely, airtight plug 15 can be dashed when serious and take off and cause operation failure.

The purpose of this utility model is to overcome the shortcoming that above-mentioned balloon catheter exists, and modified model foley's catheter a kind of rational in infrastructure, easy and simple to handle, safe and reliable is provided.

This utility model is realized in the following manner: promptly in the sealing that keeps original balloon catheter, fastening and inject under the prerequisite of functions such as liquid, preceding half segment base of conduit originally remains unchanged, comprise air bag, outer catheter joint, soft outer catheter, inner catheter, rigid outer catheter, Y-piece, syringe needle etc., only the second half section of conduit is improved.By nut, the fit sealing assembly that packing ring and screw are formed replaces exhaustor 8, sealed tube 11, sealed tube 13, Y-piece 10 and the airtight plug 15 in the former foley's catheter with a cover, and parts such as anchorage clip 17, trip bolt 16.

Below in conjunction with drawings and Examples, this utility model is done more specifically explanation.

Fig. 1 is the preceding half section view of existing foley's catheter;

Fig. 2 is the longitudinal sectional view of existing foley's catheter second half section;

Fig. 2 ' is the sketch map of anchorage clip in the existing foley's catheter;

Fig. 3 is the longitudinal sectional view of this utility model second half section.

Embodiment:

Front end with reference to Fig. 1, Fig. 3, foley's catheter has an air bag, air bag is made up of external capsule 1, fabric web 2, capsula interna 3, belt 4, its two ends are separately fixed on the far-end and outer catheter joint 5 of inner catheter 7, soft outer catheter 6 one ends are connected with outer catheter joint 5, one end is connected with rigid outer catheter 9, Y-piece 12 is fixed in the rigid outer catheter 9, and a mouth can be connected with syringe, and nut 18 is housed in another breeches pipe, seal washer 19 is housed in the nut 18, and is connected with trip bolt 20.Inner catheter 7 can freely stretch in soft outer catheter 6 and rigid outer catheter 9, and the end is connected with 20 ^#Syringe needle 14.

When implementing the valve separation with this utility model, after catheter proximal end arrives the precalculated position, with a mouth of syringe by Y-piece 12 inject contrast agent liquid between the inside and outside conduit and air bag in, air is discharged, by tightening trip bolt 20, make seal washer 19 play the sealing and the fixing dual function of inner catheter, make airbag inflation then, separate narrow valve.

The utility model is compared with existing foley's catheter, and simple and reasonable, easy to operate, function-stable is reliable, takes off because of airtight plug punching never again to cause operation failure.

Claims

1, a kind of foley's catheter that is used for non-open chest heart, Bicuspid valve, valve of pulmonary trunk or aortic stenosis exclusion, comprise external capsule 1, fabric web 2, capsula interna 3, belt 4, outer catheter joint 5, soft outer catheter 6, inner catheter 7, rigid outer catheter 9, bifurcation type pipe 12, syringe interface α and syringe needle 14, it is characterized in that: be provided with nut 18 in the fork of bifurcation type pipe 12, seal washer 19 is housed in the nut 18, and is connected with trip bolt 20.