Anesthesia catheter with front section with hydrophilic coating

A hydrophilic coating and anesthesia catheter technology, which is applied in the field of anesthesia catheters, can solve problems such as thrombus and assembly damage, high resistance to passing through, and increased resistance to catheter extraction, achieving the effects of reducing thrombus, low injury, and reducing resistance

Inactive Publication Date: 2015-03-11
PLS MINIMALLY INVASIVE INTERVENTIONAL MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Usually, the catheters used for clinical anesthesia are made of PVC or nylon materials. Since the anesthesia catheter needs to be inserted into the blood vessel or epidural space for a long time, this will cause tissue adsorption of blood v

Method used

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  • Anesthesia catheter with front section with hydrophilic coating

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Embodiment Construction

[0013] refer to figure 1 , figure 1 It is a structural schematic diagram of a specific embodiment of the present invention. As shown in the figure, the anesthesia catheter with a hydrophilic coating in the front section includes a catheter body 1, which is characterized in that: the end of the catheter body 1 is provided with a hydrophilic coating 2, Preferably, the hydrophilic coating 2 is composed of acetal polymer, hydrophilic polymer and citric acid ester plasticizer in a certain proportion, the preferred proportion is 20% to 35% of acetal polymer, hydrophilic polymer 35% to 65% of citric acid ester plasticizer, 12% to 25% of citric acid ester plasticizer, forming anti-adhesive, high lubricity, biological safety, stable and wear-resistant hydrophilic coating on the surface of catheter body 1, reducing catheter passing and pulling out It can reduce the resistance when going out, reduce thrombus, and can minimize the damage to human tissue, so it has high practical value. ...

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Abstract

The invention discloses an anesthesia catheter with the front section with a hydrophilic coating. The anesthesia catheter comprises a catheter body; the end portion of the catheter body is provided with the hydrophilic coating; the hydrophilic coating is formed by a polymer or a monomer comprising a hydrophilic group. According to the anesthesia catheter with the front section with the hydrophilic coating, the sticking-resistant, biological and safe and stable and abrasion-resistant hydrophilic coating which is high in lubricity is formed on the surface of the catheter body and accordingly the resistance of the catheter during penetration and pull-out is reduced, blood clots are reduced, the harm to the human tissue can be minimized, and the practical value is high.

Description

technical field [0001] The invention relates to an anesthesia catheter with a hydrophilic coating on the front section used in clinical medicine. Background technique [0002] Epidural block anesthesia is the most widely used clinical anesthesia method, that is, after puncture with an epidural puncture needle, guide the catheter along the lumen of the epidural puncture needle into the epidural space, and then inject anesthetics And other drugs to block, so as to achieve the purpose of anesthesia. Usually, the catheters used for clinical anesthesia are made of PVC or nylon materials. Since the anesthesia catheter needs to be inserted into the blood vessel or epidural space for a long time, this will cause tissue adsorption of blood vessels, lumens and epidural space. To the surface of the catheter, the resistance to pulling out the catheter is increased, and it is easy to cause thrombus and assembly damage, and the penetration resistance during insertion is large. Contents...

Claims

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Application Information

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IPC IPC(8): A61M19/00A61M25/00A61L29/08
Inventor 韦刘东
Owner PLS MINIMALLY INVASIVE INTERVENTIONAL MEDICAL
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