Polymer-based tissue-adhesive form medical use
First Claim
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1. A method for applying a coating to an anatomical site on tissue of a living organism comprising:
- (a) optionally priming said anatomical site with an aqueous solution comprising an oxidized polysaccharide containing aldehyde groups, having a weight-average molecular weight of about 1,000 to about 1,000,000 Daltons, said oxidized polysaccharide having an equivalent weight per aldehyde group of about 90 to about 1500 Daltons, said aqueous solution containing from about 2% to about 40% by weight of the oxidized polysaccharide;
(b) applying to said anatomical site a first component comprising an aqueous solution comprising(i) at least one poly(hydroxylic) compound derivatized with acetoacetate groups selected from the group consisting ofat least one poly(vinyl alcohol) derivatized with acetoacetate groups;
at least one poly(vinyl alcohol) copolymer derivatized with acetoacetate groups wherein said poly(vinyl alcohol) copolymer comprises between about 1 mole percent and about 25 mole percent of the comonomer relative to the vinyl alcohol units;
at least one linear or branched poly(ether) derivatized with acetoacetate groups;
at least one polysaccharide derivatized with acetoacetate groups;
at least one low molecular weight polyol derivatized with acetoacetate groups wherein said low molecular weight polyol has at least two hydroxy groups and has a molecular weight of less than about 300 Daltons;
at least one hydrolyzed polyvinyl acetate-methyl acrylate copolymer derivatized with acetoacetate groups;
at least one monosaccharide derivatized with acetoacetate groups;
at least one reduced monosaccharide derivatized with acetoacetate groups;
at least one polyether condensation product derivatized with acetoacetate groups wherein said polyether condensation product is produced by reacting at least one core molecule bearing more than one carboxylic acid group thereon with a sufficient amount of at least one polyether terminated with hydroxy groups to produce an esterified polyether with an average of at least two hydroxy end groups; and
mixtures thereofand/or(ii) a first polyamino compound derivatized with acetoacetamide groups selected from group consisting of amino-terminated linear or branched poly(ethylene oxide), amino-terminated linear or branched poly(propylene oxide), amino-terminated linear or branched copolymers of poly(ethylene oxide) and poly(propylene oxide), amino-terminated linear or branched poly(1,3-trimethylene oxide), amino-terminated linear or branched poly(1,4-tetramethylene oxide), amino-terminated star poly(ethylene oxide), amino-terminated comb poly(ethylene oxide), amino-terminated star poly(propylene oxide), amino-terminated comb poly(propylene oxide), and mixtures thereof;
each of (i) or (ii) having a weight-average molecular weight of less than about 200,000 Daltons and having an equivalent weight per acetoacetate group or acetoacetamide group, respectively, of about 100 to about 2000 Daltons; and
(c) applying to said anatomical site a second component comprising at least one of(iii) an aqueous solution of at least one second polyamino compound, wherein said at least one second polyamino compound has an equivalent weight per amino group of about 100 to about 1,000 Daltons(iv) at least one 3-aminopropyltrialkoxysilane, 3-aminopropyldialkoxyalkylsilane or 3-aminopropylmonoalkoxydialkylsilane, neat or in aqueous solution, and(v) an aqueous solution of at least one second polyamino compound and at least one 3-aminopropyltrialkoxysilane, 3-aminopropyldialkoxyalkylsilane or 3-aminopropylmonoalkoxydialkylsilane; and
(d) mixing said components on the surface of said anatomical site;
or(e) applying said second component to said anatomical site, followed by said first component, followed by mixing the solutions on the surface of said anatomical site;
or(f) premixing said first and second components, and applying the resulting mixture to said anatomical site before said resulting mixture completely cures;
wherein the acetoacetate and/or acetoacetamide groups of step (b) react at ambient temperature with the amine groups of step (c) to form a hydrogel.
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Abstract
Tissue adhesives formed by reacting poly(hydroxylic) compounds derivatized with acetoacetate groups and/or polyamino compounds derivatized with acetoacetamide groups with an amino-functional crosslinking compound are disclosed.
The use of the tissue adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; drug delivery; and anti-adhesive applications are described.
30 Citations
21 Claims
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1. A method for applying a coating to an anatomical site on tissue of a living organism comprising:
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(a) optionally priming said anatomical site with an aqueous solution comprising an oxidized polysaccharide containing aldehyde groups, having a weight-average molecular weight of about 1,000 to about 1,000,000 Daltons, said oxidized polysaccharide having an equivalent weight per aldehyde group of about 90 to about 1500 Daltons, said aqueous solution containing from about 2% to about 40% by weight of the oxidized polysaccharide; (b) applying to said anatomical site a first component comprising an aqueous solution comprising (i) at least one poly(hydroxylic) compound derivatized with acetoacetate groups selected from the group consisting of at least one poly(vinyl alcohol) derivatized with acetoacetate groups; at least one poly(vinyl alcohol) copolymer derivatized with acetoacetate groups wherein said poly(vinyl alcohol) copolymer comprises between about 1 mole percent and about 25 mole percent of the comonomer relative to the vinyl alcohol units; at least one linear or branched poly(ether) derivatized with acetoacetate groups; at least one polysaccharide derivatized with acetoacetate groups; at least one low molecular weight polyol derivatized with acetoacetate groups wherein said low molecular weight polyol has at least two hydroxy groups and has a molecular weight of less than about 300 Daltons; at least one hydrolyzed polyvinyl acetate-methyl acrylate copolymer derivatized with acetoacetate groups; at least one monosaccharide derivatized with acetoacetate groups; at least one reduced monosaccharide derivatized with acetoacetate groups; at least one polyether condensation product derivatized with acetoacetate groups wherein said polyether condensation product is produced by reacting at least one core molecule bearing more than one carboxylic acid group thereon with a sufficient amount of at least one polyether terminated with hydroxy groups to produce an esterified polyether with an average of at least two hydroxy end groups; and
mixtures thereofand/or (ii) a first polyamino compound derivatized with acetoacetamide groups selected from group consisting of amino-terminated linear or branched poly(ethylene oxide), amino-terminated linear or branched poly(propylene oxide), amino-terminated linear or branched copolymers of poly(ethylene oxide) and poly(propylene oxide), amino-terminated linear or branched poly(1,3-trimethylene oxide), amino-terminated linear or branched poly(1,4-tetramethylene oxide), amino-terminated star poly(ethylene oxide), amino-terminated comb poly(ethylene oxide), amino-terminated star poly(propylene oxide), amino-terminated comb poly(propylene oxide), and mixtures thereof; each of (i) or (ii) having a weight-average molecular weight of less than about 200,000 Daltons and having an equivalent weight per acetoacetate group or acetoacetamide group, respectively, of about 100 to about 2000 Daltons; and (c) applying to said anatomical site a second component comprising at least one of (iii) an aqueous solution of at least one second polyamino compound, wherein said at least one second polyamino compound has an equivalent weight per amino group of about 100 to about 1,000 Daltons (iv) at least one 3-aminopropyltrialkoxysilane, 3-aminopropyldialkoxyalkylsilane or 3-aminopropylmonoalkoxydialkylsilane, neat or in aqueous solution, and (v) an aqueous solution of at least one second polyamino compound and at least one 3-aminopropyltrialkoxysilane, 3-aminopropyldialkoxyalkylsilane or 3-aminopropylmonoalkoxydialkylsilane; and (d) mixing said components on the surface of said anatomical site;
or(e) applying said second component to said anatomical site, followed by said first component, followed by mixing the solutions on the surface of said anatomical site;
or(f) premixing said first and second components, and applying the resulting mixture to said anatomical site before said resulting mixture completely cures; wherein the acetoacetate and/or acetoacetamide groups of step (b) react at ambient temperature with the amine groups of step (c) to form a hydrogel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for bonding at least two anatomical sites together comprising:
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(a) optionally priming at least one anatomical site with an aqueous solution comprising an oxidized polysaccharide containing aldehyde groups, having a weight-average molecular weight of about 1,000 to about 1,000,000 Daltons, said oxidized polysaccharide having an equivalent weight per aldehyde group of about 90 to about 1500 Daltons, said aqueous solution containing from about 2% to about 40% by weight of the oxidized polysaccharide; (b) applying a first component to at least one anatomical site comprising an aqueous solution comprising (i) at least one poly(hydroxylic) compound derivatized with acetoacetate groups selected from the group consisting of at least one poly(vinyl alcohol) derivatized with acetoacetate groups; at least one poly(vinyl alcohol) copolymer derivatized with acetoacetate groups wherein said poly(vinyl alcohol) copolymer comprises between about 1 mole percent and about 25 mole percent of the comonomer relative to the vinyl alcohol units; at least one linear or branched poly(ether) derivatized with acetoacetate groups; at least one polysaccharide derivatized with acetoacetate groups; at least one low molecular weight polyol derivatized with acetoacetate groups wherein said polyol has at least two hydroxy groups and has a molecular weight of less than about 300 Daltons; at least one hydrolyzed polyvinyl acetate-methyl acrylate copolymer derivatized with acetoacetate groups; at least one monosaccharide derivatized with acetoacetate groups; at least one reduced monosaccharide derivatized with acetoacetate groups; at least one polyether condensation product derivatized with acetoacetate groups wherein said polyether condensation product is produced by reacting at least one core molecule bearing more than one carboxylic acid group thereon with a sufficient amount of at least one polyether terminated with hydroxy groups to produce an esterified polyether with an average of at least two hydroxy end groups; and
mixtures thereof and/or(ii) a first polyamino compound derivatized with acetoacetamide groups, amino-terminated linear or branched poly(ethylene oxide), amino-terminated linear or branched poly(propylene oxide), amino-terminated linear or branched copolymers of poly(ethylene oxide) and poly(propylene oxide), amino-terminated linear or branched poly(1,3-trimethylene oxide), amino-terminated linear or branched poly(1,4-tetramethylene oxide), amino-terminated star poly(ethylene oxide), amino-terminated comb poly(ethylene oxide), amino-terminated star poly(propylene oxide), amino-terminated comb poly(propylene oxide), and mixtures thereof each of (i) or (ii) having a weight-average molecular weight of less than about 200,000 Daltons and having an equivalent weight per acetoacetate group or acetoacetamide group, respectively, of about 100 to about 2000 Daltons; (c) applying to said at least one anatomical site a second component comprising at least one of (iii) an aqueous solution of at least one second polyamino compound, wherein said polyamino compound has an equivalent weight per amino group of about 100 to about 1,000 Daltons; (iv) at least one 3-aminopropyltrialkoxysilane, 3-aminopropyldialkoxyalkylsilane or 3-aminopropylmonoalkoxydialkylsilane, neat or in aqueous solution; and (v) an aqueous solution of at least one polyamino compound and at least one 3-aminopropyltrialkoxysilane, 3-aminopropyldialkoxyalkylsilane or 3-aminopropylmonoalkoxydialkylsilane; (d) mixing said components on the surface of said at least one anatomical site;
or(e) applying said second component to said at least one anatomical site, followed by said first component, followed by mixing the solutions on the surface of said at least one anatomical site;
or(f) premixing said first and second components, and applying the resulting mixture to said at least one anatomical site before said resulting mixture completely cures;
wherein the acetoacetate and/or acetoacetamide groups of step (b) react at ambient temperature with the amine groups of step (c) to form a hydrogel, and(g) contacting said at least two anatomical sites together. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification