Rapidly acting dry sealant and methods for use and manufacture
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61K-009/14
A61K-038/39
A61L-031/12
A61L-024/10
A61L-024/06
A61K-047/42
A61L-024/00
A61L-031/04
A61L-031/14
A61K-009/70
A61K-038/36
A61K-038/48
A61K-047/34
출원번호
US-0781326
(2013-02-28)
등록번호
US-9114172
(2015-08-25)
발명자
/ 주소
Rhee, Woonza M.
Reich, Cary J.
Osawa, A. Edward
Vega, Felix
출원인 / 주소
Baxter International Inc.
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
1인용 특허 :
121
초록▼
Compositions, methods, and kits are provided for sealing applications. Compositions are prepared by combining a first cross-linkable component with a second cross-linkable component to form a porous matrix having interstices, and combining the porous matrix with a hydrogel-forming component to fill
Compositions, methods, and kits are provided for sealing applications. Compositions are prepared by combining a first cross-linkable component with a second cross-linkable component to form a porous matrix having interstices, and combining the porous matrix with a hydrogel-forming component to fill at least some of the interstices. The compositions exhibit minimal swelling properties.
대표청구항▼
1. A method of treating a tissue of an individual, the method comprising: applying a dry solid sealant composition to the tissue of the individual, the sealant composition comprising a first cross-linkable component, a second cross-linkable component, and a hydrogel-forming component characterized b
1. A method of treating a tissue of an individual, the method comprising: applying a dry solid sealant composition to the tissue of the individual, the sealant composition comprising a first cross-linkable component, a second cross-linkable component, and a hydrogel-forming component characterized by an equilibrium swell value of between about 400% and about 1300%; wherein:the concentration of combined first and second cross-linkable components is from 5% to 75% of the total mass of the sealant composition and the concentration of the hydrogel-forming component is from 95% to 25% of the total mass of the sealant composition;the first and second cross-linkable components are configured to react by cross-linking upon contact between the sealant composition and a tissue to form a porous matrix having interstices, and the hydrogel-forming component is configured to swell, by absorption of moisture following the tissue contact to form a hydrogel to fill at least some of the interstices;the first cross-linkable component comprises a multi-nucleophilic polyalkylene oxide having m nucleophilic groups, and the second cross-linkable component comprises a multi-electrophilic polyalkylene oxide having n electrophilic groups, wherein m and n are each greater than or equal to two, and wherein m+n is greater than or equal to five; andthe tissue comprises a bleeding site, and the matrix and interstitial hydrogel are configured to seal the bleeding site. 2. The method according to claim 1, wherein each of the first and second components is present as a gel. 3. The method according to claim 1, wherein the hydrogel forming component comprises a biologic polymer selected from the group consisting of gelatin, collagen, albumin, hemoglobin, fibrogen, fibrin, casein, fibronectin, elastin, keratin, laminin, and derivatives and combinations thereof. 4. The method according to claim 1, wherein the sealant composition is fixed on a support, and wherein the support is porous and comprises a member selected from the group consisting of a pad, a sheet, a film, and a sponge. 5. The method according to claim 4, wherein the support comprises a member selected from the group consisting of collagen, fibrin, cellulose, and chitosan. 6. The method according to claim 1, wherein the first component nucleophilic polymer comprises a member selected from the group consisting of a dilysine, a trilysine, a quatralysine, a pentalysine, a dicysteine, a tricysteine, a quatracysteine, a pentacystein, and an oligopeptide or polypeptide comprising two or more lysines or cysteines. 7. The method according to claim 1, wherein the second component electrophilic polymer comprises two or more succinimidyl groups. 8. The method according to claim 1, wherein the second component comprises a polyethylene glycol containing a succinimidyl group. 9. The method according to claim 1, wherein the sealant composition further comprises an active agent. 10. The method according to claim 1, wherein the sealant composition further comprises a hemostatic agent selected from the group consisting of thrombin, fibrinogen, and a clotting agent. 11. A method of treating a tissue of a living individual, the method comprising: obtaining a dry solid sealant composition, the sealant composition comprising a first cross-linkable component, a second cross-linkable component and a hydrogel-forming component characterized by an equilibrium swell value of between about 400% and about 1300%, wherein: the first and second cross-linkable components are capable of substantially immediate cross-linking to form a porous matrix having interstices upon contacting the mixed powder composition to a tissue, and the hydrogel-forming component does not cross-link with the first cross-linkable component or the second cross-linkable component and is configured to swell by absorption of moisture following the tissue contact;the first cross-linkable component comprises a multi-nucleophilic polyalkylene oxide having m nucleophilic groups, and the second cross-linkable component comprises a multi-electrophilic polyalkylene oxide having n electrophilic groups, wherein m and n are each greater than or equal to two, and wherein m+n is greater than or equal to five;the hydrogel-forming component is in a concentration of between 25% and 95% mass percent of the composition; andthe tissue comprises a bleeding site, and the matrix and interstitial hydrogel are configured to seal the bleeding site; andapplying the sealant composition to the tissue of the individual. 12. The method according to claim 11, wherein the sealant composition is fixed on a support, and wherein the support is configured to degrade at approximately the same rate in vivo as the sealant composition. 13. The method according to claim 11, wherein the sealant composition is fixed on a support, and wherein the support comprises a swelling factor of about 1.3 to about 1.5 times. 14. The method according to claim 11, wherein the first and second components cross-link under physiological conditions. 15. The method according to claim 11, wherein the sealant composition is applied to the tissue of the individual in the absence of a high pH buffer. 16. A method of treating a tissue of a living individual, the method comprising: applying a dry solid sealant composition to the tissue of the individual, the sealant composition comprising a first cross-linkable component, a second cross-linkable component, and a hydrogel-forming component characterized by an equilibrium swell value of between about 400% and about 1300%, wherein the sealant composition is fixed on a biocompatible support comprising a member selected from the group consisting of a protein, a carbohydrate, and a synthetic polymer, and wherein:the concentration of combined first and second cross-linkable components is from 5% to 75% of the total mass of the sealant composition and the concentration of the hydrogel-forming component is from 95% to 25% of the total mass of the sealant composition;the first and second cross-linkable components are configured to react by cross-linking upon contact between the sealant composition and a tissue to form a porous matrix having interstices, and the hydrogel-forming component is configured to swell, by absorption of moisture following the tissue contact to form a hydrogel to fill at least some of the interstices;the first cross-linkable component comprises a multi-nucleophilic polyalkylene oxide having m nucleophilic groups, and the second cross-linkable component comprises a multi-electrophilic polyalkylene oxide having n electrophilic groups, wherein m and n are each greater than or equal to two, and wherein m+n is greater than or equal to five; andthe tissue comprises a bleeding site, and the matrix and interstitial hydrogel are configured to seal the bleeding site. 17. The method according to claim 16, wherein the first and second components are physically fixed on the support. 18. The method according to claim 16, wherein the support is previously cross-linked so that the first and second components are not chemically reacted with the support prior to the application. 19. The method according to claim 16, wherein the first and second components are not chemically reacted with one another on the support prior to the application. 20. The method according to claim 16, wherein the biocompatible support is configured to degrade at approximately the same rate in vivo as the sealant composition. 21. The method according to claim 16, wherein the biocompatible support has a degree of porosity to allow blood or other liquids to seep into the support. 22. The method according to claim 16, wherein the first and second components are at least partially contained within the biocompatible support. 23. The method according to claim 16, wherein the tissue comprises muscle, skin, epithelial tissue, smooth, skeletal or cardiac muscle, connective or supporting tissue, nerve tissue, ophthalmic and other sense organ tissue, vascular and cardiac tissue, gastrointestinal organs and tissue, pleura and other pulmonary tissue, kidney, endocrine glands, male and female reproductive organs, adipose tissue, liver, pancreas, lymph, cartilage, bone, oral tissue, mucosal tissue, or spleen or other abdominal organs. 24. The method according to claim 11, wherein the support comprises a swelling factor of about 1.3 to about 1.5 times.
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