Hydrophilic type super-lubricity urinary catheter and preparation method thereof

A hydrophilic, super-slip technology, applied in catheters and other directions, can solve the problems of increased production costs, difficult quality control, high manufacturing costs, etc., and achieve the effects of convenient processing, simple processing technology, and low manufacturing costs

Inactive Publication Date: 2016-02-17
SHAOXING XINYUANLI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the unavoidable problem is the high manufacturing cost of these materials; Both CN101222946A and CN1537643A mentioned that when carrying out the coating process of hydrophilic type super slippery coating to the base material, need to adopt two-step method: promptly at first substra

Method used

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  • Hydrophilic type super-lubricity urinary catheter and preparation method thereof
  • Hydrophilic type super-lubricity urinary catheter and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] The hydrophilic super-slip urinary catheter of this embodiment combines figure 1 , Consists of a polyurethane polymer outer layer 1, a tube body layer 2 and a hydrophilic super-slip coating 4. The outer polyurethane polymer layer 1 has a hydrophilic super-slip coating 4 on the outside and a tube body layer 2 on the inside. The polyurethane polymer outer layer 1 and the tube main body layer 2 are arranged concentrically, wherein, in this embodiment, the polyurethane polymer outer layer 1 has a thickness of 0.05-0.5 mm, and the tube main body layer 2 has a thickness of 0.1-1 mm; the polyurethane polymer outer layer 1 It is made of polyester polyurethane, the tube main body layer 2 is made of PVC, and the hydrophilic super-slip coating 4 is made of hydrophilic polymer, adhesive polymer, film former and solvent. The solution is dried, wherein the hydrophilic polymer is polyvinylpyrrolidone, the adhesive polymer is acrylic resin, the film-forming agent is nit...

Example Embodiment

[0035] Example 2

[0036] The configuration and working principle of this embodiment are the same as that of embodiment 1, but the difference is that: in this embodiment, the basic pipe body is integrally formed by dipping: the pipe main body layer 2 is immersed in the polyurethane polymer, so as to be on the pipe main body layer 2. Cover a layer of polyurethane polymer outer layer 1.

[0037] The hydrophilic super-slip coating 4 is set on the basic tube body by dipping: insert the basic tube body into the hydrophilic super-slip coating solution, soak for 5-60 seconds, and then dry it.

Example Embodiment

[0038] Example 3

[0039] The configuration and working principle of this embodiment are the same as that of embodiment 1. The difference is that: in this embodiment, the basic tube body is formed by spraying: spraying polyurethane polymer on the tube body layer 2 so that it is on the tube body layer. 2 is covered with a polyurethane polymer outer layer 1.

[0040] The hydrophilic super-slip coating 4 is set on the basic tube body by dipping: insert the basic tube body into the hydrophilic super-slip coating solution, soak for 5-60 seconds, and then dry it.

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Abstract

The invention relates to a hydrophilic type super-lubricity urinary catheter and a preparation method thereof, and belongs to the technical field of medical product processing. The hydrophilic type super-lubricity urinary catheter consists of a hydrophilic type super-lubricity coating, a polyurethane polymer outer layer and a pipe main body layer, wherein the hydrophilic type super-lubricity coating is arranged on the polyurethane polymer outer layer; the pipe main body layer is positioned at the inner side of the polyurethane polymer outer layer, and is integrally formed with the polyurethane polymer outer layer; and the hydrophilic type super-lubricity coating, the polyurethane polymer outer layer and the pipe main body layer form a concentric layer structure. The hydrophilic type super-lubricity urinary catheter provided by the invention is applied to clinical infusion and has the advantages of being integrally formed, strong in adhesive force, good in wetting property, good in water retention property, low in friction coefficient, high in mechanical strength, excellent in safety and the like.

Description

technical field [0001] The invention relates to a hydrophilic super-slippery urinary catheter and a preparation method thereof, belonging to the technical field of medical product processing. Background technique [0002] Patients with surgical and clinical urinary retention often require catheterization, which is a catheter inserted through the urethra into the bladder to drain urine. Clinically, a balloon catheter (Foley catheter, coude catheter, or suprapubic cystostomy) is usually used, but when an indwelling catheter is used, an external drainage device (such as a urine collection bag) needs to be connected. Inconvenience to activities and life. In addition to balloon catheter placement, studies have shown that intermittent self-cleaning catheterization (Cleanintermittentself-catheterization, referred to as CISC) is safe, easy to operate, easy to master, and the chance of restoring spontaneous urination is better than indwelling The catheterization rate is high, and th...

Claims

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Application Information

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IPC IPC(8): A61M25/00A61M25/16A61L29/12B29C47/10
Inventor 祝军伟
Owner SHAOXING XINYUANLI TECH CO LTD
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