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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 substrate conduit After dipping and drying in the 1# solution, then dipping and drying in the 2# solution to make a catheter with a hydrophilic super-slip coating, this will inevitably lead to complex production processes and high production costs. increase and difficulty in quality control

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
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Effect test

Embodiment 1

[0030] The present embodiment hydrophilic type ultra-slippery catheter combines figure 1 , consisting of a polyurethane polymer outer layer 1, a tube main body layer 2 and a hydrophilic super-slip coating 4, the outer side of the polyurethane polymer outer layer 1 is a hydrophilic super-slip coating 4, and the inner side is provided with a tube main body layer 2, and The polyurethane polymer outer layer 1 is arranged concentrically with the pipe main body layer 2, wherein, in this embodiment, the polyurethane polymer outer layer 1 has a thickness of 0.05-0.5 mm, and the pipe 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 pipe main body layer 2 is made of PVC, and the hydrophilic super slippery coating 4 is formed of hydrophilic high molecular polymer, adhesive polymer, film forming agent and solvent The solution is dried, wherein the hydrophilic polymer is polyvinylpyrrolidone, the adhesive polyme...

Embodiment 2

[0036] The setting and working principle of this embodiment are the same as those of Embodiment 1, the difference is that in this embodiment, the basic pipe body is formed integrally by dipping: the pipe main body layer 2 is dipped in polyurethane polymer, so that on the pipe main body layer 2 Covered with an outer layer of polyurethane polymer 1 .

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

Embodiment 3

[0039] The setting and working principle of this embodiment are the same as that of Embodiment 1, the difference is that in this embodiment, the basic pipe body is integrally formed by spraying: the polyurethane polymer is sprayed on the pipe main body layer 2, so that it is formed on the pipe main body layer 2 is covered to form a layer of polyurethane polymer outer layer 1.

[0040] The hydrophilic super-slip coating 4 is set on the base pipe body by dipping: insert the base pipe body into the hydrophilic super-slip coating solution, dip 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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