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Absorbent healing dressing and its use for chronic wounds

An absorbent and non-absorbent technology, applied in adhesive dressings, non-adhesive dressings, dressings, etc., can solve the problems of inability to remove the dressing as a whole, lack of cohesion, and inability to reduce the absorption rate and ability of non-woven fabrics, etc., to achieve Avoid reduction in opening size, promote healing, improve healing effect

Active Publication Date: 2016-02-24
HCP HEALTHCARE ASIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These dressings suffer from the following disadvantages: lack of cohesion; and excessive disintegration that occurs when exudate is absorbed, leaving debris on the wound and removal of the dressing as a whole
In particular, the insertion of an interlayer between the wound and the nonwoven must not reduce the absorption rate and capacity of the nonwoven

Method used

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  • Absorbent healing dressing and its use for chronic wounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0161] Preparation of nonwovens

[0162] Using polyester / polyethylene two-component heat-bonding fiber and sold by Toyobo Co., Ltd. F superabsorbent fiber (70% by weight (superabsorbent fiber) / 30% (thermal bonding fiber)) to prepare 185g / m with a thickness of 2mm 2 of non-woven fabrics.

[0163] The fibers are weighed, blended, carded and then napped to obtain a web. The web is then consolidated by a needling operation. The final consolidation of the nonwoven is done by heating (calendering), which melts the shell of thermally bonded fibers and locks the nonwoven into its final structure.

[0164] Preparation of hydrocolloid elastomeric substances

[0165] The hydrocolloid elastomer composition is further prepared by mixing in a mixer.

[0166] In weight percent relative to the total weight of the composition, the elastomeric composition is as follows:

[0167] -Shell to Mineral oil sold under the name 919: 41.7%;

[0168] -AQUALON company to CMC Sodium carboxyme...

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Abstract

The present invention relates to a dressing comprising essentially: a nonwoven absorbent compress composed of (i) thermally bonded and nonabsorbent core / shell bicomponent fibers, the core being polyester (polyphenylene Ethylene glycol diformate PET) and the shell is polyethylene; a core / shell type bicomponent superabsorbent fiber with a polyacrylonitrile core and a polyacrylate shell; and a hydrocolloid elastomeric substance A mesh is produced which covers in particular the surface of a compress intended to be placed in contact with a wound. The product is especially suitable for promoting the healing of chronic wounds with optimized cleansing.

Description

technical field [0001] The present invention relates to a dressing comprising an absorbent nonwoven compress and an elastomeric contact layer comprising a hydrocolloid. This dressing is very effective in caring for wounds where healing is desired. The dressing allows control of exudate from the wound and the presence of fibrin without resorting to supplementary debridement means such as surgery or enzymes. Background technique [0002] Natural wound healing proceeds in three sequential phases, each characterized by specific cellular events: a debridement phase, a proliferative (or granulation) phase, and an epithelialization phase. Throughout the healing process, the wound produces a fluid or viscous exudate which must be absorbed by the dressing. [0003] The natural debridement capacity of the wound is insufficient when the trauma is significant or when the patient suffers from a similar pathology such as phlebopathy or diabetes. In these cases, the duration of the debr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/00
CPCA61F13/00A61F2013/00229A61F2013/00604A61F2013/00676A61F2013/00744A61F2013/00748A61F2013/00782A61F2013/0091A61F13/00029A61F2013/00251A61F13/02A61L15/28A61L15/60A61L15/22A61F13/00042
Inventor 让-马克·佩尔诺斯特凡娜·奥古斯特克里斯特勒·劳伦索
Owner HCP HEALTHCARE ASIA