Chitosan paste wound dressing

US9192574B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9192574-B2
Application numberUS-201414319901-A
CountryUS
Kind codeB2
Filing dateJun 30, 2014
Priority dateOct 24, 2013
Publication dateNov 24, 2015
Grant dateNov 24, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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A method for treating a wound with a ready-to-use composition having a high concentration of a water-soluble chitosan in a phosphate-containing solution. The composition is a paste at room temperature, has a pH of at least 4, adheres to the body tissue or surgical site and has a residence time of at least 1 day.

First claim

Opening claim text (preview).

We claim: 1. A method for treating a wound comprising: applying to a wound a paste composition comprising a water-soluble chitosan or derivative thereof in a phosphate-containing solution, wherein the composition is an opaque paste at room temperature containing at least five wt. % of the water-soluble chitosan or derivative thereof based on the total paste weight and having a pH of at least 4, a viscosity of about 1to about 15Pa·s., and a residence time of at least 1day.…

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What does patent US9192574B2 cover?
A method for treating a wound with a ready-to-use composition having a high concentration of a water-soluble chitosan in a phosphate-containing solution. The composition is a paste at room temperature, has a pH of at least 4, adheres to the body tissue or surgical site and has a residence time of at least 1 day.
Who is the assignee on this patent?
Medtronic Xomed Inc
What technology area does this patent fall under?
Primary CPC classification A61K9/06. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Nov 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).