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viscoelastic wound closure dressing

A viscoelastic, wound technology, used in adhesive dressings, non-adhesive dressings, dressings, etc.

Active Publication Date: 2020-07-31
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, such wound closure devices can be applied to the skin without stretching force, but must then be activated or triggered to actively apply force to the wound

Method used

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  • viscoelastic wound closure dressing
  • viscoelastic wound closure dressing
  • viscoelastic wound closure dressing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0186] 1. A wound closure dressing comprising:

[0187] A viscoelastic backing comprising a first major surface, a first end, a second end, and an intermediate section between the first end and the second end, wherein the first major surface is structured When used facing the skin, the degree of recovery of the viscoelastic backing at room temperature is:

[0188] After being tensioned to 50% elongation for 30 minutes, recover not more than 40% of its deformation after 10 seconds, and

[0189] recover at least 70% of its deformation after 48 hours after being tensioned to 50% elongation for 30 minutes;

[0190] a skin contact adhesive on the first major surface of the viscoelastic backing adjacent the first end and the second end, the majority of the first major surface of the intermediate section being free of skin contact adhesive.

[0191] 2. The wound closure dressing of embodiment 1, wherein the degree of recovery of the viscoelastic backing at room temperature is:

...

Embodiment 1

[0274] Example 1 - Wound Closure Dressing Comprising a Viscoelastic Backing 1 system

[0275] Two strips of acrylic adhesive, 1.9 cm wide, 12.7 cm long, and 0.003 cm thick, were laminated to one surface of the viscoelastic backing 1 . Two adhesive strips were placed parallel and 1.27 cm apart. Laminate pieces of 5 cm x 5 cm were cut. This laminate forms the wound closure dressing of this embodiment. Mark the inside edge of the tape on the viscoelastic backing with black ink. One of the adhesive strips was then laminated to the polypropylene sheet such that the outside edge of the strip was aligned with one outside edge of the polypropylene sheet. Then clamp the end. Polypropylene sheets are used as supports for the system. The opposite second end of the backing is then grasped and the middle section of the backing is heated with a heat gun for several seconds. As the middle section of the backing became more compliant, the backing was stretched such that the ink lines ...

Embodiment 2

[0276] Example 2 - Wound Closure Dressing Comprising Viscoelastic Backing 3 and Liner Tabs system

[0277] Two acrylic adhesive tapes 1.9 cm wide, 8.0 cm long, and 0.003 cm thick were laminated to one surface of the viscoelastic backing 3 . The two adhesive strips are placed parallel and 1.5 cm apart. Laminate pieces of 5 cm x 8 cm were cut. This laminate forms the wound closure dressing of this embodiment. Ink grids were printed on the surface of the viscoelastic backing 3 with a spacing of 0.5 cm to help observe the stretch and recovery of the backing. One of the adhesive strips was then laminated to the polypropylene sheet such that the outside edge of the strip was aligned with one outside edge of the polypropylene sheet. Then clamp the end. Polypropylene sheets are used as supports for the system. A 9 mm wide strip of release liner was placed on the outer edge of the laminate opposite the second end, covering the outer portion of the adhesive (ie, the outer 9 mm) t...

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Abstract

The present disclosure provides viscoelastic wound closure dressings. The dressing may comprise a viscoelastic backing comprising a first major surface, a first end, a second end and an intermediate section, the first major surface being configured to face the skin in use, the The middle section is located between the first end and the second end. The wound closure dressing may further comprise a skin contact adhesive on the first major surface of the viscoelastic backing adjacent the first end and the second end . A substantial portion of the first major surface of the middle section may be free of the skin contact adhesive. The viscoelastic backing is recoverable at room temperature to the extent that (i) after being tensioned to 50% elongation for 30 minutes, it recovers no more than 40% of its deformation after 10 seconds; and ( ii) recovers at least 70% of its deformation after 48 hours after being tensioned to 50% elongation for 30 minutes.

Description

technical field [0001] The present disclosure relates generally to wound closure dressings comprising viscoelastic backings, systems comprising wound closure dressings, and methods of using wound closure dressings, eg, to close wounds or maintain wounds in a closed state. Background technique [0002] Wound closure includes several types of techniques including one or more of sutures, staples, liquid adhesives, and dressings. Some existing wound closure devices require the application process to include using fingers or forceps as close as possible to the skin edge. Manually snapping skin edges like this requires some skill to perform correctly. [0003] Additionally, some existing wound closure devices employ elastic materials that stretch across the wound, and the resilience of the elastic material can be used for wound closure. Some elastic wound closure devices can be applied to the skin by (i) applying a first end of the elastic material to the skin on one side of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/02
CPCA61F13/0233A61F13/0236A61F13/0243A61F13/01017A61F13/01038
Inventor 约瑟夫·D·鲁莱多内·德米尔戈兹珍妮弗·N·汉森詹姆斯·M·琼扎格雷戈里·J·安德森拉哈·A·本戴维·R·霍尔姆
Owner 3M INNOVATIVE PROPERTIES CO