CN203017554U

CN203017554U - Telescopic catheter

Info

Publication number: CN203017554U
Application number: CN 201320026121
Authority: CN
Inventors: 亓树莹; 刘伟; 康尔恂
Original assignee: 亓树莹
Priority date: 2013-01-18
Filing date: 2013-01-18
Publication date: 2013-06-26
Anticipated expiration: 2023-01-18

Abstract

The utility model discloses a telescopic catheter which is characterized by being composed of a telescopic catheter body (1) and a guide wire (6), wherein the front end of the catheter body (1) is closed; the front part of the catheter body (1) is provided with two side holes (3); the rear end of the catheter body (1) is provided with rigid plastic (2) in which a screw bayonet is arranged; the catheter body (1) is provided with double cavities; the near ends of the side holes (3) of the catheter body (1) are provided with air sacs (4); a one-way valve (5) is arranged in the tail end of a side tube of the catheter body (1) communicated with the air sacs (4); and the tail end of the guide wire (6) is expanded and provided with a spiral structure, and the spiral diameter of the spiral structure is matched with the diameter of the screw bayonet arranged in the rigid plastic (2) at the rear end of the catheter body (1). When the telescopic catheter is used, the tube cavities of the catheter are thinned under the extension of the guide wire and are not soft, so that the catheter is easy to insert, and the damage to the urethra and particularly a prostate part is reduced; and the telescopic catheter is convenient to operate and particularly suitable for the old.

Description

The extension type catheter

Technical field:

This utility model relates to technical field of medical instruments, is a kind of extension type catheter specifically, is specially adapted to Elderly male patient.

Background technology:

Existing catheter in clinical practice for many years, though comparative maturity is used and inconvenient; Particularly for Elderly male patient, because prostatic hyperplasia is loose, the prostate section of urethra is often very narrow, ordinary urethral catheter be not easy very much by, in the process of inserting catheter, usually cause the major injury of urethra, perhaps directly cause the failure of insertion.

Summary of the invention:

The purpose of this utility model is the deficiency that overcomes above-mentioned prior art, and a kind of extension type catheter is provided, and mainly solves existing catheter and easily causes injury of urethra or insert the problem that unsuccessfully waits for Elderly male patient.

The technical solution of the utility model is: the extension type catheter, its special character is to be comprised of urethral catheterization body and the guiding wire of scalability, and two side openings are established in the sealing of urethral catheterization body front end in the front portion of urethral catheterization body, urethral catheterization body rear end is hard plastic, is provided with the screw bayonet socket in it; The urethral catheterization body is two-chamber, and the side opening near-end of urethral catheterization body is provided with air bag, establishes check valve in the side pipe tail end of the urethral catheterization body that communicates with air bag; Described guiding wire tail end is for expanding the band helical structure, and the screw bayonet socket in the hard plastic of its screw diameter and urethral catheterization body rear end is complementary.

Further, described catheter body length is 400mm; Described bag volume is 15ml; The length of described seal wire is 450mm, and external diameter is 2mm, and tool plasticity.

Compared with the prior art extension type catheter described in the utility model has following good effect: during use, catheter tube chamber under the extension of guiding wire attenuates, and become no longer soft, the insertion of catheter is become easily and reduce for the particularly damage of prostatic of urethra, easy to operate, be specially adapted to the old people and use.

Description of drawings:

Fig. 1 is catheter structural representation of the present utility model;

Fig. 2 is the structural representation of guiding wire of the present utility model.

The specific embodiment:

For Comprehension and Implementation better, provide specific embodiment below in conjunction with accompanying drawing and describe this utility model in detail.

Embodiment 1, referring to Fig. 1,2, the urethral catheterization body 1 that first utilizes designing material to be processed into to have double cavity structure, two-chamber one is main chamber, one for paying the chamber, length 400mm, its internal diameter can be divided into 8F, 10F, 12F, 14F, several models of 16F, 20F, the 1 front end sealing of urethral catheterization body, rear end 10mm scope adds with hard plastic 2, and hard plastic 2 inwalls have the spiral bayonet socket, open the side opening 3 of two correspondences at distance front end 5mm place, establish apart from side opening 5mm place and can fill air bag 4, volume 15ml installs check valve 5 in the side pipe tail end of the urethral catheterization body 1 that communicates with air bag 4;

Guiding wire 6 diameter 2mm, Length Ratio urethral catheterization pipe range 50mm, tail end 15mm is for expanding the band helical structure, and the spiral bayonet socket in screw diameter and urethral catheterization body 1 rear end hard plastic 2 is complementary.

Extension type catheter described in the utility model, during use, first carry out moulding according to patient's urethra general shape aseptic guiding wire, in rear insertion sterilized catheter, the spiral bayonet socket chucking of tail end and catheter rear end, the catheter outer surface is coated with sterilised liq paraffin, and the urethra that then inserts after sterilizing gets final product; Pull out guiding wire after catheter puts in place, inject the 15ml normal saline through side pipe to air bag, catheter master chamber tail end connects drainage tube, and operation namely finishes.

Claims

1. extension type catheter, it is characterized in that being formed by urethral catheterization body (1) and the guiding wire (6) of scalability, the sealing of urethral catheterization body (1) front end, establish two side openings (3) in the front portion of urethral catheterization body (1), urethral catheterization body (1) rear end is hard plastic (2), is provided with the screw bayonet socket in it; Urethral catheterization body (1) is two-chamber, and side opening (3) near-end of urethral catheterization body (1) is provided with air bag (4), establishes check valve (5) in the side pipe tail end of the urethral catheterization body (1) that communicates with air bag (4); Described guiding wire (6) tail end is for expanding the band helical structure, and the screw bayonet socket in the hard plastic (2) of its screw diameter and urethral catheterization body (1) rear end is complementary.

2. extension type catheter according to claim 1, is characterized in that described urethral catheterization body (1) length is 400mm; Described air bag (4) volume is 15ml; The length of described seal wire (6) is 450mm, and external diameter is 2mm.