CN210812940U

CN210812940U - Closed sacculus type switch venous catheter

Info

Publication number: CN210812940U
Application number: CN201921365713.2U
Authority: CN
Inventors: 陈文祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-23
Anticipated expiration: 2029-08-22

Abstract

The utility model relates to the technical field of medical instruments, in particular to a closed balloon type switch venous catheter, which comprises a double-cavity venous catheter and a balloon catheter, wherein the double-cavity venous catheter comprises a first lumen and a second lumen; the sacculus pipe is located lumen one between the lumen two, the sacculus pipe includes branch pipe, piston and sacculus, the piston is installed the one end of branch pipe, the sacculus cover is established the other end of branch pipe, the sacculus with the pointed end of two-chamber venous catheter flushes. The utility model can prevent blood from diffusing into the lumen during the treatment period, and prevent the tube sealing liquid in the lumen from entering the blood; thereby preventing the formation of lumen thrombosis and the toxic and side effects of the medicine; can ensure to enclose high-efficiency disinfectant or high-concentration antibiotic when the tube is infected, and increase the treatment effect.

Description

Closed sacculus type switch venous catheter

Technical Field

The utility model relates to the technical field of medical equipment, in particular to inclosed sacculus formula switch ductus venosus.

Background

In clinic, reliable blood vessel access is the primary condition of hemodialysis, and an intravenous catheter, which is a common medical device for injecting drugs to patients, is currently an important method for establishing blood vessel access clinically.

At present, a commonly used double-lumen venous catheter for hemodialysis is sealed by heparin during hemodialysis to prevent thrombus formation, but the heparin sealed tube cannot ensure that blood does not diffuse into the catheter to form thrombus; meanwhile, the later-stage toxic and side effects of blood coagulation difficulty and the like of a human body can be caused by the heparin diffusing into the blood; similarly, when the bacteria in the catheter cavity needs to be sterilized by using antibiotic tube sealing, the continuous high concentration of the drug cannot be ensured, and the like. In clinic, in order to perform multi-path injection and solve the difficult problem caused by the double-lumen catheter, a triple-lumen venous catheter is assumed, but the operation is complex, each added three-way joint is an infection source, and one more lumen consumes more drugs and consumables, so that the operation difficulty is increased.

Chinese utility model patent application no: 201820691519.2, the name of the utility model is 'hemodialysis catheter', the utility model discloses a hemodialysis catheter, which comprises a main catheter and a flexible blind tube arranged in the cavity of the main catheter, the device can solve the problem of thrombus generation in the catheter after hemodialysis, but the device has a complex structure, is not beneficial to single operation, and can not solve the problem of keeping high concentration of medicine when the bacteria generated in the catheter cavity need to use antibiotics.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough among the prior art, the utility model provides an inclosed sacculus formula switch ductus venosus, its simple structure, convenient popularization.

A closed balloon type switch venous catheter comprises a double-cavity venous catheter and a balloon catheter, wherein the double-cavity venous catheter comprises a first lumen and a second lumen; the sacculus pipe is located lumen one between the lumen two, the sacculus pipe includes branch pipe, piston and sacculus, the piston is installed the one end of branch pipe, the sacculus cover is established the other end of branch pipe, the sacculus with the pointed end of two-chamber venous catheter flushes.

Preferably, the double-cavity venous catheter is a silica gel double-cavity venous catheter.

Preferably, the piston is a cylindrical closed piston.

Preferably, after the balloon is expanded, the balloon closes the first lumen and the second lumen by pressing, i.e., the first lumen and the second lumen are sealed.

The utility model has the advantages that:

in clinical use, the utility model can not form thrombus in the tube cavity, and the dosage of heparin in the tube sealing liquid can be reduced, thereby preventing the heparin from causing toxic and side effects on patients; when infection is caused in the lumen, high-efficiency disinfectant or high-concentration antibiotic can be injected into the double-lumen venous catheter, and the tip of the double-lumen venous catheter is closed through the balloon catheter, so that the disinfectant or antibiotic can be prevented from entering blood, and the treatment effect is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a cross-sectional view of the present invention;

fig. 2 is a bottom view of the part a of the present invention;

FIG. 3 is a cross-sectional view of the balloon of the present invention during expansion;

fig. 4 is a bottom view of the part a of the balloon of the present invention during expansion;

1-lumen I, 2-lumen II, 3-balloon catheter, 31-piston, 32-branch tube, 33-balloon and 4-tube wall.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention easier to be clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

As shown in fig. 1, a closed balloon type switch venous catheter comprises a double-lumen venous catheter and a balloon catheter 3, wherein the double-lumen venous catheter is a silica gel double-lumen venous catheter, and comprises a first lumen 1 and a second lumen 2;

the balloon catheter 3 is arranged between the first lumen 1 and the second lumen 2, the balloon catheter 3 comprises a branch pipe 32, a piston 31 and a balloon 33, the piston 31 is installed at one end of the branch pipe 32, the piston 31 is a cylindrical closed piston 31, the balloon 33 is sleeved at the other end of the branch pipe 32, the balloon 33 is flush with the tip of the double-lumen venous catheter, the balloon 33 is a thermoplastic elastomer part, and the balloon 33 is expanded and contracted by pulling the piston 31.

As shown in fig. 1 and 2, when a patient is undergoing hemodialysis, the balloon 33 in the balloon catheter 3 is contracted, the first lumen 1 and the second lumen 2 are opened, and liquid can pass through;

as shown in fig. 3 and 4, during the dialysis period, the piston 31 is pressed down, the balloon 33 is expanded, the first lumen 1 and the second lumen 2 are closed, blood can not enter the lumens, and tube sealing liquid in the lumens can not enter the blood, so that the thrombosis of the lumens and the toxic and side effects of medicines are prevented; when infection in the lumen, the piston 31 is pressed down to enable the balloon 33 to close the lumen, and high-concentration antibiotics or high-efficiency disinfectants are sealed in the lumen, so that adverse reaction of medicines can be avoided.

The utility model can prevent blood from diffusing into the tube cavity and prevent tube sealing liquid in the tube cavity from entering the blood during the dialysis period; thereby preventing the formation of lumen thrombosis and the toxic and side effects of the medicine; can ensure to enclose high-efficiency disinfectant or high-concentration antibiotic when the tube is infected, and increase the treatment effect.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A closed balloon type switch venous catheter is characterized by comprising a double-cavity venous catheter and a balloon catheter, wherein the double-cavity venous catheter comprises a first lumen and a second lumen; the sacculus pipe is located lumen one between the lumen two, the sacculus pipe includes branch pipe, piston and sacculus, the piston is installed the one end of branch pipe, the sacculus cover is established the other end of branch pipe, the sacculus with the pointed end of two-chamber venous catheter flushes.

2. A closed balloon switch intravenous catheter as in claim 1, wherein: the double-cavity venous catheter is a silica gel double-cavity venous catheter.

3. A closed balloon switch intravenous catheter as in claim 1, wherein: the piston is a cylindrical closed piston.

4. A closed balloon switch intravenous catheter as in claim 1, wherein: the balloon is a thermoplastic elastomer part.

5. A closed balloon switch intravenous catheter as in claim 1, wherein: after the saccule is expanded, the saccule closes the first lumen and the second lumen by pressing, namely the first lumen and the second lumen are closed.