Hydrocolloid dressing and preparation method thereof

A hydrocolloid and hydrocolloid layer technology, applied in the field of medical materials, can solve the problems of secondary trauma, non-waterproof, poor ability to absorb wound exudate, etc., and achieve the effects of promoting healing, reducing scars, and good absorption capacity

Inactive Publication Date: 2012-01-04
SUZHOU MEDSPORT PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that it has poor ability to absorb wound exudate, is not waterproof, and it is easy to cause secondary trauma during the replacement process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take 2.0kg of styrene-isoprene block copolymer and 1.5kg of medical grade white oil to melt in the reactor, the temperature is controlled at 140~170℃; until the styrene-isoprene block copolymer is completely melted Finally, add 1.5kg isoprene rubber to the reaction kettle and keep it warm for a period of time; get 1.8kg gelatin, 4.0kg carboxymethylcellulose sodium and 0.2kg carboxymethyl chitosan and mix evenly, carboxymethyl chitosan The molecular weight is 10000-1000000, the degree of deacetylation is above 80%, and the degree of carboxylation is above 70%; then it is slowly added to the reaction kettle, stirring continuously, and after being completely mixed, the temperature is lowered for defoaming; then the obtained mixture is evenly coated with Cloth on a thin polymer film, that is, the hydrocolloid layer is coated on the backing layer. Peel off layers, then pack.

Embodiment 2

[0026] Take 1.5kg of styrene-isoprene block copolymer and 1.2kg of medical grade white oil to melt in the reactor, the temperature is controlled at 140~170℃; until the styrene-isoprene block copolymer is completely melted Finally, add 1.8kg rosin to the reaction kettle and keep it warm for a period of time; take 2.0kg gelatin, 3.1 kg carboxymethyl cellulose sodium and 0.4kg carboxymethyl chitosan and mix them evenly, then slowly add them into the reaction kettle and keep stirring , after completely mixing uniformly, cooling and defoaming; then the obtained mixture is evenly coated on a thin polymer film, that is, the hydrocolloid layer is coated on the backing layer, and the thickness of the hydrocolloid layer is 2.5mm, and the temperature is lowered; finally The hydrocolloid layer is covered with glassine paper, and then packaged.

Embodiment 3

[0028] Take 1.5kg of styrene-isoprene block copolymer and 1.0kg of medical grade white oil to melt in the reactor, the temperature is controlled at 140~170℃; until the styrene-isoprene block copolymer is completely melted Finally, add 1.6kg of isoprene rubber to the reactor and keep it warm for a period of time; get 1.6kg of gelatin, 3.9 kg of sodium carboxymethylcellulose and 0.4kg of carboxymethyl chitosan and mix them evenly, then slowly add them to the reactor In, constantly stirring, after being completely mixed evenly, cooling and defoaming; then the obtained mixture is evenly coated on a thin non-woven fabric, that is, the hydrocolloid layer is coated on the backing layer, and the thickness of the hydrocolloid layer is 3mm. Cooling; Finally, the hydrocolloid layer is covered with glassine paper, and then packaged.

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Abstract

The invention relates to a hydrocolloid dressing and a preparation method thereof. The hydrocolloid dressing sequentially comprises a backlining layer, a hydrocolloid layer and a peeling layer, wherein ingredients of the hydrocolloid layer comprise a styrene-isoprene block copolymer, mineral oil, gelatin, viscous resin, sodium carboxymethylcellulose and carboxymethyl chitosan; and a mixture hydrocolloid is coated on the backlining layer and then the peeling layer is covered on the mixture hydrocolloid. The hydrocolloid dressing can well absorb wound transudate, is applicable to wound with a small amount and a medium amount of transudate, and has high elasticity and autohesion and certain bacteriostasis.

Description

technical field [0001] The invention relates to a hydrocolloid dressing and a preparation method thereof, belonging to the technical field of medical materials. Background technique [0002] As a traditional dressing, absorbent cotton gauze has played an important role in the field of medical and health care. Its disadvantages are that it has poor ability to absorb wound exudate, is not waterproof, and is prone to secondary trauma during the replacement process. [0003] Since the 1960s, people have begun to pay attention to the wound management concept of moist healing. A moist environment can not only accelerate wound healing, but also eliminate pain during the healing process and reduce scars. In recent years, moist dressings are developing rapidly. Contents of the invention [0004] The purpose of the present invention is to provide a hydrocolloid dressing and a preparation method thereof. The hydrocolloid dressing has good absorption capacity for wound exudate, ke...

Claims

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Application Information

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IPC IPC(8): A61L15/34A61L15/32A61L15/28A61L15/24A61L15/42
Inventor 李进进徐天骥钟明南
Owner SUZHOU MEDSPORT PROD
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