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Cardiac anesthesia catheter head elasticity softening liquid, preparation method and use method thereof

An anesthesia catheter and softening solution technology, applied in chemical instruments and methods, other medical devices, other chemical processes, etc., can solve the problems of head off, catheter placement in blood vessels, epidural spasm, etc. Stress, simple preparation process and obvious clinical effect

Active Publication Date: 2010-09-29
ZHEJIANG SUJIA MEDICAL DEVICE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the cardiac anesthesia catheters currently used clinically in my country, most of them are extruded from PVC or nylon. The outer diameter of the catheter is about 0.5-3mm, and the inner diameter is 0.2-1.8mm. During anesthesia surgery, it is easy to touch the epidural space and cause spasm, which will lead to bleeding and catheter placement in blood vessels in severe cases. The softening of the epidural anesthesia catheter head has been pursued by manufacturers and expected by doctors. End softening treatment At present, the existing products on the market use the front end of the catheter to connect with a softer tube, but this solution has the risk of the head falling off, and this kind of docking cannot be used for cardiac anesthesia catheters with such a small diameter method solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Cardiac anesthesia catheter head elastic softener contains (by weight):

[0018] Adipamide Adipate 45%

[0019] Glycerin 5%

[0020] Acetic acid 50%

[0021] Preparation method, the steps are as follows:

[0022] Take adipamide adipamide, glycerin and acetic acid according to the amount of the ingredients contained, first add glycerin to acetic acid, stir well to make a mixed solution; then add adipamide adipate to the mixed solution, stir until dissolved , to prepare a softening solution.

[0023] The method of use is as follows:

[0024] Take a certain amount of softening solution and heat it in a closed container at a constant temperature of 40°C. Immerse the 5mm head of the nylon cardiac anesthesia catheter to be softened into the softening solution. After 6 minutes, take out the catheter and move it to an oven at 40°C for 30 minutes. , take out and cool to room temperature.

Embodiment 2

[0026] Cardiac anesthesia catheter head elastic softener contains (by weight):

[0027] Adipamide Adipate 40%

[0028] Di(2-Ethyl)hexyl Epoxy Soyate 5%

[0029] Citric Acid 55%

[0030] Preparation method, the steps are as follows:

[0031] Take adipamide adipate, epoxy soyate di(2-ethyl)hexyl and citric acid according to the amount of the ingredients, first add epoxy soyate di(2-ethyl)hexyl citric acid, stir evenly to obtain a mixed solution; then add adipamide adipate to the mixed solution, stir until dissolved, and obtain a softening solution.

[0032] The method of use is as follows:

[0033] Take a certain amount of softening solution and heat it in a closed container at a constant temperature of 40°C. Immerse the head of the cardiac anesthesia catheter to be softened in the softening solution. After 10 minutes, take out the catheter and move it to an oven at 40°C for 30 minutes with blasting air. Take it out and let it cool to room temperature.

Embodiment 3

[0035] Cardiac anesthesia catheter head elastic softener contains (by weight):

[0036] Benzamide 45%

[0037] Glycerin 6%

[0038] Citric Acid 49%

[0039] Preparation method, the steps are as follows:

[0040] Take benzamide, glycerin and citric acid according to the amount of the ingredients contained, first add glycerin to citric acid, stir well to prepare a mixed solution; then add benzamide to the mixed solution, stir until dissolved, and obtain softened liquid.

[0041] The method of use is as follows:

[0042] Take a certain amount of softening solution and heat it in a closed container at a constant temperature of 60°C. Immerse the head of the cardiac anesthesia catheter to be softened in the softening solution. After 6 minutes, take out the catheter and move it to an oven at 50°C for 30 minutes. Take out the catheter and let it cool down to room temperature.

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Abstract

The invention discloses a cardiac anesthesia catheter head elasticity softening liquid, which comprises the following components by weight percent: 20-50 percent of main softening agent, 0-10 percent of assistant softening agent and 40-80 percent of penetrating agent. The preparation method is that the main softening agent, the assistant softening agent and the penetrating agent are taken according to the weight percents of the components, the assistant softening agent is added into the penetrating agent first and even agitation is conducted to obtain mixed solution; and the main softening agent is added into the mixed solution, and agitation is conducted until the main softening agent is dissolved to obtain the softening liquid. The use method is that the softening liquid is heated in a closed container, the temperature is kept to be constant at 40-60 DEG C, a nylon cardiac anesthesia catheter head required to be softened is immersed in the softening liquid for 5-15 minutes, and the catheter is taken out, is moved to a drying oven, is dried and is cooled to room temperature to obtain. The invention has the advantages of simple softening liquid preparation technology, no toxicity,convenient use and high safety and reliability.

Description

technical field [0001] The invention relates to an elastic softening liquid for the head of a cardiac anesthesia catheter and a method for preparing and using the same. Background technique [0002] For the cardiac anesthesia catheters currently used clinically in my country, most of them are extruded from PVC or nylon. The outer diameter of the catheter is about 0.5-3mm, and the inner diameter is 0.2-1.8mm. During anesthesia surgery, it is easy to touch the epidural space and cause spasm, which will lead to bleeding and catheter placement in blood vessels in severe cases. The softening of the epidural anesthesia catheter head has been pursued by manufacturers and expected by doctors. End softening treatment At present, the existing products on the market use the front end of the catheter to connect with a softer tube, but this solution has the risk of the head falling off, and this kind of docking cannot be used for cardiac anesthesia catheters with such a small diameter meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/00A61M39/08
Inventor 胡巧玲孙永富吉恒权
Owner ZHEJIANG SUJIA MEDICAL DEVICE
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