Foam substrate dressing and preparation method thereof

A foam and base frame technology, applied in the field of foam-based dressings and its preparation, can solve the problems of medical workers and patients, large differences in production processes and equipment, and different ways of use, etc., to achieve good ease of use and low cost , good effect

Active Publication Date: 2016-05-04
厦门百美特生物材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the materials used for these major types of dressings are very different, the production processes and equipment are so diffe

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1: Preparation of a foam-based vertical absorbent dressing

[0038] A foam-based dressing is a foam-based vertical absorbent dressing with a water content of not more than 22% by weight. It is composed of a base frame made of sheet-shaped polyurethane foam dressing and a gel material filled in the cells of the base frame. The gel material Including 75wt% sodium alginate, 7.5wt% hydrophilic synthetic polymer polyacrylamide and 17.5% carboxymethyl cellulose sodium (CMC-Na); the specific preparation method is as follows:

[0039] 1) The above gel material, namely 75wt% sodium alginate, 7.5wt% polyacrylamide and 17.5% sodium carboxymethyl cellulose are dissolved in water, and the solid content is 3.6 after stirring, filtering, defoaming and standing. wt% gel stock solution; immerse a commercially available sheet polyurethane foam dressing with a thickness of 5mm in the gel stock solution;

[0040] 2) Use a pressing roller to uniformly squeeze the sheet-shaped polyurethane...

Example Embodiment

[0046] Example 2: Preparation of a foam-based hydrocolloid dressing

[0047] A foam-based dressing is a foam-based hydrocolloid dressing with a water content of 22-50wt%. It is composed of a base frame made of sheet-shaped polyurethane foam dressing and a gel material filled and attached to the cells of the base frame. The gel material includes 75wt% % Sodium carboxymethyl cellulose, 10wt% xanthan gum and 15wt% sodium alginate; the specific preparation method is as follows:

[0048] 1) The above-mentioned gel material, namely 5wt% sodium carboxymethyl cellulose, 10wt% xanthan gum and 15wt% sodium alginate are dissolved in water, after stirring, filtering, defoaming, and standing to make a solid content of 6wt% Gel stock solution; immerse a commercially available sheet-shaped polyurethane foam dressing with a thickness of 3mm in the gel stock solution;

[0049] 2) Use a pressing roller to uniformly squeeze the sheet-shaped polyurethane foam dressing from one side to the other side in...

Example Embodiment

[0054] Example 3: Preparation of a foam-based hydrogel dressing

[0055] A foam-based dressing is a foam-based hydrogel dressing with a water content of 50 to 90% by weight. It is composed of a base frame made of a sheet-shaped polyurethane foam dressing and a gel material filled in the cells of the base frame. The gel material includes 55wt% k-type carrageenan, 25wt% gelatin and 20wt% sodium alginate; the specific preparation method is as follows:

[0056] 1) The above gel materials, namely 55wt% k-carrageenan, 25wt% gelatin, and 20wt% sodium alginate are dissolved in water at 90°C, stirred, filtered, defoamed, and left standing to prepare a gel with a solid content of 4wt%. Collagen solution; immerse a commercially available sheet-shaped polyurethane foam dressing with a thickness of 2mm in the gel solution;

[0057] 2) Use a pressing roller to uniformly squeeze the sheet-shaped polyurethane foam dressing from one side to the other side in parallel to remove the air in the cells; ...

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Abstract

The invention discloses foam substrate dressing and a preparation method thereof. The foam substrate dressing is formed by a base frame made from platy foam dressing and a gel material filled and attached into base frame holes, contains foam substrate vertical absorption dressing with water content being not higher than 22wt%, foam substrate hydrocolloid dressing with water content being 22 to 50wt%, and foam substrate hydrogel dressing with water content being 50 to 90wt%, and is suitable for wounds of different seepage amounts. According to the dressing and the preparation method thereof, platy foam dressing is used as the base frame, and the holes are filled with the gel material in an attachment manner, so as to prepare novel wet dressing meeting the application of different wounds and different healing phases; meanwhile, the preparation process is similar, the required devices are mutually compatible, and the production is simple and easy.

Description

technical field [0001] The invention belongs to the field of medical dressings, in particular to a foam-based dressing and a preparation method thereof. Background technique [0002] The core concept of modern wound dressing design is exudate management, and various dressings have been developed and applied for wounds with different exudate volumes. [0003] The main varieties of modern wet dressings are: (1) alginate dressing and foam dressing, which are suitable for the care of moderate to severe exudate wounds. They are prepared by foaming alginate fiber and polyurethane or polyurethane or polyvinyl alcohol respectively. Silver ions also have an antibacterial function; (2) hydrocolloid dressings, suitable for the care of small to moderate exudate wounds, mainly prepared into sheets with CMC and hot-melt elastic polymers such as rubber and polyisobutylene, and backed with polyurethane Film, or, attaching hydrocolloid particles on oily gauze; (3) hydrogel dressing, suitabl...

Claims

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Application Information

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IPC IPC(8): A61L26/00
CPCA61L26/0014A61L26/0019A61L26/0023A61L26/0038A61L26/0066A61L26/008A61L26/0085A61L2300/102A61L2300/104A61L2300/404C08L75/04C08L29/04C08L5/08C08L1/26C08L5/04C08L3/02C08L5/06C08L5/12C08L5/00
Inventor 蓝煌琴吴晓玲刘澄胜邱冬刘松林黄福龙
Owner 厦门百美特生物材料科技有限公司
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