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Urethral catheter and plug bonding process therefor

A technology for urinary catheters and plugs, which is applied in the plug bonding process and the field of urinary catheters. It can solve the problems of insufficient smoothness of the outer surface of plugs, low yield rate, and low processing efficiency of urinary catheters, etc., and achieves improved processing Efficiency and good product rate, the effect of high flatness

Pending Publication Date: 2021-01-05
JIANGSU WEIKANG JIEJING MEDICAL APP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of this method leads to low processing efficiency of the urinary catheter, insufficient smoothness of the outer surface of the plug, and low yield of good products.

Method used

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  • Urethral catheter and plug bonding process therefor
  • Urethral catheter and plug bonding process therefor
  • Urethral catheter and plug bonding process therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] See attached figure 1 with 2 As shown, as a preferred embodiment of the urinary catheter of the present invention, it includes a tube body 1 and a plug body 2 located at one end of the tube body 1 . The tube body 1 of this embodiment is made of silica gel, and the plug body 2 is made of silica gel compounded with barium agent (such as barium sulfate). An adhesive layer 3 is provided on the surface of the plug body 2 close to the pipe body 1 and the inside of the end of the pipe body 1 connected to the plug body 2 . The adhesive layer 3 includes a first adhesive layer 31 located in the middle of the surface of the plug body 2 that is close to the pipe body 1, and a second adhesive layer that covers the outer wall of the area where the plug body 2 and the pipe body 1 are close to each other. The adhesive layer 32 and the third adhesive layer 33 inside the pipe at the end of the pipe body 1 connected with the plug body 2 . The first adhesive layer 31 , the second adhesi...

Embodiment 2

[0028] The present embodiment provides a plug bonding process of a urinary catheter, which comprises the following steps:

[0029] (1) Prefabrication of the plug body 2 containing the developer;

[0030] (2) The end of the plug body 2 to be installed in the urinary catheter is provided with a heat-shrinkable film 4 that can cover the end of the tube body 1 connected with the plug body 2 and the plug body 2, and the heat-shrinkable film 4 The inner diameter before shrinkage is greater than the outer diameter of the plug body 2 and the outer diameter of the end of the pipe body 1 connected to the plug body 2 (see the attached image 3 shown);

[0031] (3) Inject glue into the pipe at the end of one end of the plug body 2 to be installed on the tube body 1, place the plug body 2 of step (1) on the end of the catheter and connect it;

[0032] (4) Heat the heat-shrinkable film 4, and the end portion connected to the plug body 2 of the urinary catheter will be shrunk by the shrink...

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Abstract

The invention discloses a urethral catheter and a plug bonding process therefor. The plug bonding process for the urethral catheter, disclosed by the invention, comprises the following steps: prefabricating a developer-containing plug body; injecting glue into a catheter body of an end part, to be connected with the plug body, of the urethral catheter, and sleeving a thermal shrinkage film outsidethe catheter body of the end part, where the plug body is required to be arranged, of the urethral catheter; and squeezing out part of the glue arranged at the end part, connected with the plug body,of the urethral catheter during shrinkage of the shrinkage film. Under the action of the thermal shrinkage film, the glue can flow out from the middle of the plug body and the catheter body and is wrapped on the outside surface of a region, with the plug body, of the urethral catheter by the thermal shrinkage film. According to the urethral catheter prepared by using the plug bonding process disclosed by the invention, the outside surface of one end with the plug body is smooth; and by using the process disclosed by the invention, both the processing efficiency and non-defective rate of the urethral catheter can be increased greatly.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a plug bonding process of a urinary catheter and the urinary catheter. Background technique [0002] In clinical medicine, when a patient is unable to urinate spontaneously, it is usually necessary to use a catheter to draw out the urine in the patient's bladder to relieve problems such as urinary retention. The urinary catheter mainly includes two parts, a guide head and a tube body. Usually, a developer is compounded in the guide head to prevent it from accidentally falling into the internal organs of the human body, and it is easy to take out. [0003] The existing urinary catheter is made by injecting the barium-containing glue into the plug mold, immersing the end of the catheter below the liquid level of the glue, and then curing the glue into a plug by heating or other means. And it is integrally connected with the urinary catheter. However, this meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00
CPCA61M25/0009A61M25/001A61M25/0021A61M25/0043A61M25/0068A61M2205/32
Inventor 刘春良陈宝达吴月新
Owner JIANGSU WEIKANG JIEJING MEDICAL APP