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EP0507604A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Ionically crosslinked carboxyl-containing polysaccharides for adhesion prevention

Assignee: Lifecore Biomedical Inc
•
Filing: 1992-04-03
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Granted: —
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Expires: 2012-04-03
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Abstract

Abstract A method of reducing post-operative adhesion formation by topically applying an ionically crosslinked carboxyl-containing polysaccharide or a pharmacologically acceptable salt thereof, e.g. sodium hyaluronate crosslinked with ferric chloride, to a site of surgical trauma.

Inventors

  • 👤 W. James Huang
  • 👤 Douglas B. Johns
  • 👤 Richard L. Kronenthal

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 23:01
CPC Classifications
A; A61; A61K; A61K45/00; A61K45/06; A61K31/00; A61K31/33; A61K31/395; A61K31/40; A61K31/70; A61K31/715; A61K31/716; A61K31/717; A61K31/722; A61K31/726; A61K31/728; A61P; A61P31/00; A61P31/02; A61P43/00

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 14 words
A composition comprising an ionically crosslinked carboxyl-containing polysaccharide or a pharmacologically acceptable salt thereof.
Claim 2
Dependent Claim 9 words
The composition of claim 1 further comprising a drug.
Claim 3
Dependent Claim 13 words
The composition of claim 2, wherein the drug is an adhesion prevention aid.
Claim 4
Dependent Claim 17 words
The composition of claim 3, wherein the adhesion prevention aid is a non-steroidal anti-inflammatory drug, preferably tolmetin.
Claim 5
Dependent Claim 15 words
The composition of claim 2, wherein the drug is an antibiotic or a growth factor.
Claim 6
Dependent Claim 33 words
The composition of any one of claims 1 to 5, wherein the carboxyl-containing polysaccharide is carboxymethyl cellulose, carboxymethyl chitin, hyaluronic acid or an alkali or alkaline earth metal salt of one of these.
Claim 7
Dependent Claim 15 words
The composition of claim 6, wherein the carboxyl-containing polysaccharide is hyaluronic acid or sodium hyaluronate.
Claim 8
Dependent Claim 24 words
The composition of claim 6 or claim 7, wherein the carboxyl-containing polysaccharide is cross-linked with ferric chloride, aluminium chloride, chromium sulphate or aluminium sulphate.
Claim 9
Dependent Claim 23 words
The composition of any one of claims 1 to 8, wherein the ionically crosslinked carboxyl-containing polysaccharide is sodium hyaluronate crosslinked with ferric chloride.
Claim 10
Dependent Claim 28 words
A topically-applicable composition for application to a site of surgical trauma for the prevention of adhesion comprising a composition according to any one of claims 1 to 9.
Claim 11
Dependent Claim 23 words
The composition of claim 10, which is topically-applicable directly to the site of surgical trauma in one application by injection through a syringe.
Claim 12
Dependent Claim 11 words
A drug delivery system comprising a composition according to claim 2.
Claim 13
Dependent Claim 19 words
Use of an ionically crosslinked carboxyl-containing polysaccharide in the production of a topically-applicable medicament for use in adhesion prevention.

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