Articles and methods for negative pressure wound therapy

A product and wound technology, applied in the field of products and methods for negative pressure wound treatment

Active Publication Date: 2020-07-14
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Despite improvements in dressings for negative pressure wound therapy, there are continuing issues that need to be addressed when using wound dressings, including ease of use, efficiency of tissue granulation, and sources of constant or varying negative pressure

Method used

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  • Articles and methods for negative pressure wound therapy
  • Articles and methods for negative pressure wound therapy
  • Articles and methods for negative pressure wound therapy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach D

[0081] Embodiment D is the article of any one of the preceding embodiments, wherein the microporous layer comprises nylon.

[0082] Embodiment E is the article of any one of the preceding embodiments, wherein the wound dressing material is coupled to at least a portion of the layer.

[0083] Embodiment F is the article of any one of the preceding embodiments; wherein the plurality of ridges has a distance between adjacent ridges; wherein in a relaxed, dry state, the average distance between adjacent ridges of the plurality of ridges is about 0.4mm to about 5.0mm.

[0084] Embodiment G is the article of any one of the preceding embodiments, wherein the layer comprises a plurality of alternating ridges and grooves, each groove having a depth; wherein in a relaxed, dry state, the depth is from about 0.2 mm to about 2 mm.

[0085] Embodiment H is the article of embodiment G, wherein the wound dressing material comprises an open cell foam.

[0086] Embodiment I is the article of ...

Embodiment approach L

[0089] Embodiment L is the article of any one of the preceding embodiments, wherein the wound dressing material includes a major surface facing the microporous layer, wherein at least a portion of the surface includes a plurality of alternating ridges and grooves.

[0090] Embodiment M is the article of any one of the preceding embodiments, further comprising an active agent disposed on and / or in the microporous layer.

[0091] Embodiment N is the article of embodiment M, wherein the active agent is selected from the group consisting of antimicrobial ingredients, growth factors, angiogenic factors, anesthetics, mucopolysaccharides, proteins, adjuvants, nitric oxide (NO) releasing ingredients, and the aforementioned active agents. A group consisting of any combination of two or more.

[0092] Embodiment O is the article of any of the preceding embodiments, wherein the layer comprises a plurality of alternating ridges and grooves, each groove having a longitudinal dimension; whe...

Embodiment approach P

[0093] Embodiment P is an article comprising:

[0094] a plurality of segments, each segment comprising a macroporous wound dressing material substantially encapsulated in a microcorrugated microporous wound contact layer;

[0095] wherein the microporous layer comprises a plurality of pores having an average pore size, wherein the average pore size is less than or equal to about 90 μm; and

[0096] A tether connects the first segment to the second segment.

[0097] Embodiment Q is the article of embodiment P, wherein the fragments of the plurality of fragments are linked in a linear array.

[0098] Embodiment R is the article of Embodiment P or Embodiment Q, wherein the plurality of fragments includes two terminal fragments.

[0099] Embodiment S is the article of embodiment R, further comprising an extraction element attached to at least one of the end segments.

[0100]Embodiment T The article of any one of the preceding embodiments, wherein the wound contact layer, the ...

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Abstract

The present disclosure provides articles comprising a macroporous wound dressing material and a micropleated microporous wound contact layer. The wound dressing material is coupled to and / or substantially surrounded by the wound contact layer. The average pore size of the microporous layer is less than or equal to about 90 µm. The present disclosure also provides methods of treating wounds using micropleated microporous wound contact layers and macroporous wound dressing materials.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application No. 61 / 971,679, filed March 28, 2014, the disclosure of which is incorporated herein by reference in its entirety. Background technique [0003] Wound healing is an essential repair process. Dressing wounds has been shown to utilize appropriate materials that aid in the natural regenerative process. Conventionally, such materials have been made from cotton fibers such as gauze. These dressings benefit the healing process because they insulate damaged tissue from external contaminants and because they absorb potentially harmful wound exudates. Devices and dressings that provide a moist wound environment for improved healing have been found to be useful. [0004] Negative pressure therapy has been used to facilitate the removal of exudate from the wound area. When suction is applied to a gauze wound dressing, the dressing is compressed into a flat s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/00
CPCA61F13/00021A61F13/00034A61F13/00068A61F2013/00327
Inventor 西蒙·S·冯李朝弟布利塔尼·A·艾克赫斯特刘杰詹姆斯·M·夏拉基
Owner 3M INNOVATIVE PROPERTIES CO
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