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Process for producing water-soluble hemostatic pledget

A technology of hemostatic gauze and production process, which is applied in the field of production process of water-soluble hemostatic gauze, can solve the problems of polluting the environment, waste is not easy to rot, etc., and achieve the effect of avoiding the formation of adhesion and promoting wound healing

Inactive Publication Date: 2005-12-21
中山生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, medical dressings are generally sterilized by degreasing gauze for use by medical and health departments. Such dressings become waste after use, which is not easy to rot and pollutes the environment for a long time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] (1) Solution A: 80% alcohol containing 2.5mol / L chloroacetic acid. Submerge the degreased gauze in the solution A at a temperature of 40-50°C and shake for 6 hours.

[0012] (2) Solution B: 80% alcohol containing 4.0 mol / L sodium hydroxide. Put the gauze treated with solution A at a temperature of 40-50°C and shake for 6 hours.

[0013] (3) Wring out the gauze treated with solution B, put it in 95% alcohol, then adjust the pH value to 6.5-8.5 with concentrated hydrochloric acid; Dry in a drying room at 30°C and a humidity of 40-55%. When the gauze is 90% dry, pull the gauze flat; after the gauze is completely dry, cut it according to different specifications and put it into a packaging bag.

[0014] (4) Gamma ray irradiation sterilization, the minimum absorbed dose is 25Kgy.

Embodiment 2

[0016] (1) Solution A after the reaction of Example 1 is titrated to be 70% alcohol containing 1.5mol / L chloroacetic acid. It is supplemented as 70% edible alcohol containing 2.5mol / L chloroacetic acid.

[0017] (2) Solution B after the reaction of Example 1 is titrated to 80% alcohol containing 2.5mol / L sodium hydroxide. Make it up to 80% alcohol containing 4.0 mol / L sodium hydroxide.

[0018] (3) All the other steps are the same as in Example 1.

Embodiment 3

[0020] (1) Solution A after titration embodiment 1 reaction is the 70% alcohol that contains 1.6mol / L chloroacetic acid. Make it up to 70% alcohol containing 2.0mol / L chloroacetic acid.

[0021] (2) Titration The solution B after the reaction of Example 1 is 70% alcohol containing 2.2mol / L sodium hydroxide. Make it up to 70% alcohol containing 3.0 mol / L sodium hydroxide.

[0022] (3) All the other steps are the same as in Example 1.

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PUM

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Abstract

The invention relates to a production process of water-soluble hemostatic gauze. Including: put the degreased gauze in 70-80% alcohol containing 2.5mol / L chloroacetic acid at 40-50°C and shake for 6 hours; then put the above-mentioned gauze in 70% alcohol containing 3-4mol / L sodium hydroxide Shake in ~80% alcohol for 6 hours, then put into 95% alcohol and adjust the pH value to 6.5~8.5 with concentrated hydrochloric acid. Finally, soak the gauze in 95% alcohol for washing, and then dry it in an environment with a temperature of 25-30° C. and a humidity of 40-55%, so that ordinary cotton fibers are converted into water-soluble fiber salts. After γ-ray sterilization, it is used for various hemostasis, wound protection and avoiding adhesion formation; it can also be used as a moisture-proof material. After use, the water-soluble hemostatic gauze can be dissolved in water into small molecular substances, which is beneficial to the absorption and utilization of animals and plants, and effectively solves the problem of environmental pollution caused by waste gauze.

Description

1. Technical field [0001] The invention relates to a production process of a medical dressing, in particular to a production process of a water-soluble hemostatic gauze. 2. Background technology [0002] At present, medical dressings are generally sterilized by degreasing gauze for use by medical and health departments. Such dressings become waste after use, which is not easy to rot and pollutes the environment for a long time. 3. Contents of the invention [0003] The purpose of the present invention is to provide a production process of water-soluble hemostatic gauze which can be completely dissolved in water and is beneficial to the absorption and utilization of animals and plants. [0004] The technical solution of the present invention is: the production technology of water-soluble hemostatic gauze comprises: (A), the degreasing gauze is placed in 40~50 ℃ of oscillating 6 hours in the 70~80% alcohol that contains 2.5mol / L chloroacetic acid; (B) ), then place the gauz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/00A61F13/02D06M11/00D06M13/00
Inventor 陈跃龙王纯直
Owner 中山生物工程有限公司
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