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Hydrocolloid medical dressing and preparation method thereof

A hydrocolloid and raw material technology, applied in medical science, bandages, absorbent pads, etc., can solve the problems of inability to promote wound healing, wound mechanical damage, poor protection effect, etc.

Pending Publication Date: 2022-04-15
山东万容生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional medical dressings mainly include gauze, bandages, etc., which can only play a physical role in protecting the wound. The protection effect is poor, and it cannot promote wound healing, and it is easy to cause mechanical damage to the wound during replacement.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] The embodiment of the present invention provides a method for preparing a hydrocolloid medical dressing, which includes the following steps: taking SIS block copolymer, polyisobutylene, rosin glyceride and antioxidant and mixing them in an internal mixer to prepare a hot-melt pressed dressing Sensitive glue; add hydrocolloid particles to the above hot melt pressure sensitive adhesive, continue mixing to obtain a mixture; place the mixture in a flat vulcanizer to prepare a finished hydrocolloid dressing; wherein, the above hydrocolloid particles include carboxymethyl cellulose Sodium, polyvinyl alcohol and sodium alginate.

[0016] In the above-mentioned embodiment, firstly, the SIS block copolymer, polyisobutylene, rosin glyceride and antioxidant were mixed in an internal mixer to prepare a hot-melt pressure-sensitive adhesive, and the hot-melt pressure-sensitive adhesive was used as the base material. Among them, the SIS block copolymer is a triblock copolymer of styre...

Embodiment 1

[0037] The present embodiment provides a hydrocolloid medical dressing, which is prepared by the following method:

[0038] Take 10g of SIS block copolymer, 12g of polyisobutylene, 15g of rosin glyceride and 0.2g of antioxidant and put them into an internal mixer and mix them for 15min at 120°C and 100r / min to prepare a hot-melt pressure-sensitive adhesive; Add hydrocolloid particles to the hot-melt pressure-sensitive adhesive, keep the temperature and rotation speed constant, and continue mixing for 15 minutes to obtain a mixture, wherein the raw materials of the hydrocolloid particles include 30 g of sodium carboxymethyl cellulose, 10 g of polyvinyl alcohol and 8 g of sodium alginate Add foaming agent to the mixture, cool after stirring and mixing, and then place it in a flat vulcanizer to prepare the finished hydrocolloid dressing; wherein, the amount of foaming agent is 5% of the weight of the above-mentioned mixture, and the raw material of foaming agent includes carbonic ...

Embodiment 2

[0040] The present embodiment provides a hydrocolloid medical dressing, which is prepared by the following method:

[0041] Take 20g of SIS block copolymer, 12g of polyisobutylene, 15g of rosin glyceride and 0.8g of antioxidant, put them into an internal mixer and mix them for 15min at 130°C and 110r / min to prepare a hot-melt pressure-sensitive adhesive; Add hydrocolloid particles to the hot-melt pressure-sensitive adhesive, keep the temperature and rotation speed constant, and continue mixing for 15 minutes to obtain a mixture, wherein the raw materials of the hydrocolloid particles include 35 g of sodium carboxymethyl cellulose, 10 g of polyvinyl alcohol and 12 g of sodium alginate Add foaming agent to the mixture, cool after stirring and mixing, and then place it in a flat vulcanizer to prepare the finished hydrocolloid dressing; wherein, the amount of foaming agent is 7% of the weight of the above-mentioned mixture, and the raw material of foaming agent includes carbonic ac...

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PUM

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Abstract

The invention provides a hydrocolloid medical dressing and a preparation method thereof, and relates to the technical field of medical dressings. The preparation method of the hydrocolloid medical dressing comprises the following steps: putting an SIS block copolymer, polyisobutene, glycerol ester of rosin and an antioxidant into an internal mixer, and mixing to prepare a hot-melt pressure-sensitive adhesive; adding hydrocolloid particles into the hot-melt pressure-sensitive adhesive, and continuously mixing to obtain a mixture; placing the mixture in a press vulcanizer to prepare a hydrocolloid dressing finished product; wherein the hydrocolloid particles comprise sodium carboxymethyl cellulose, polyvinyl alcohol and sodium alginate; the method is simple in process, and the prepared product dressing is good in use effect. The hydrocolloid medical dressing is prepared by the preparation method, and can provide a moist healing environment for a wound surface, promote wound healing, protect a wound and prevent wound infection.

Description

technical field [0001] The invention relates to the technical field of medical dressings, in particular to a hydrocolloid medical dressing and a preparation method thereof. Background technique [0002] The skin is an organ that covers the surface of the body and is in direct contact with the external environment. It has the functions of protection, excretion, temperature regulation, and perception of external stimuli. It is also the largest organ in the human body, and it is also the most vulnerable to external damage. organ. The skin has a strong ability to repair and regenerate. When the skin is traumatized and the skin tissue is severed or defective, the skin will heal itself. During the healing process, the wound is easily infected by the outside world. Therefore, it is necessary to use medical dressings to treat the wound surface. Protect. Traditional medical dressings mainly include gauze, bandages, etc., which can only play a role in physical protection of the woun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/24A61L15/28A61L15/42A61L15/58A61L15/60
Inventor 徐会军
Owner 山东万容生物科技有限公司
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