Compositions and systems for forming crosslinked biomaterials and associated methods of preparation and use
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61K-009/00
A61K-009/08
A61K-009/14
A61K-047/00
A61K-047/30
출원번호
US-0279987
(2011-10-24)
등록번호
US-8460708
(2013-06-11)
발명자
/ 주소
Daniloff, George Y.
Sehl, Louis C.
Trollsas, Olof Mikael
Schroeder, Jacqueline A.
Gravett, David M.
Toleikis, Philip M.
출원인 / 주소
AngioDevice International GmbH
대리인 / 주소
Seed IP Law Group PLLC
인용정보
피인용 횟수 :
8인용 특허 :
198
초록▼
Kits comprising dry power compositions are provided that readily crosslink in situ to provide crosslinked biomaterials. The dry powder composition contains at least two biocompatible, non-immunogenic components having reactive groups thereon, with the functional groups selected so as to enable inter
Kits comprising dry power compositions are provided that readily crosslink in situ to provide crosslinked biomaterials. The dry powder composition contains at least two biocompatible, non-immunogenic components having reactive groups thereon, with the functional groups selected so as to enable inter-reaction between the components, i.e., crosslinking. Exemplary uses for the crosslinked biomaterials include tissue augmentation, biologically active agent delivery, bioadhesion, and prevention of adhesions following surgery or injury.
대표청구항▼
1. A kit for use in medical applications, comprising: (a) a dry powder composition comprising i. a first component having a first hydrophilic polymer core substituted with m thiol groups, where m≧2; andii. a second component having a second hydrophilic polymer core substituted with n electrophilic g
1. A kit for use in medical applications, comprising: (a) a dry powder composition comprising i. a first component having a first hydrophilic polymer core substituted with m thiol groups, where m≧2; andii. a second component having a second hydrophilic polymer core substituted with n electrophilic groups, where n≧2 and m+n>4, and wherein the electrophilic group is independently —(CO)—O—(CO)—R (where R is an alkyl group), CH═CH—CH═O, —CH═CH—C(CH3)═O, —N═C═O, —N═C═S, —SO2CH═CH2, —O(CO)—C═CH2, —O(CO)—C(CH3)═CH2, —S—S—(C5H4N), —O(CO)—C(CH2CH3)═CH2, —CH═CH—C═NH, —COOH, —(CO)O—N(COCH2)2, —O—(CO)—O—N(COCH2)2, —CHO, —(CO)O—N(COCH2)2—S(O)2OH, and —N(COCH)2;(b) a first solution having a pH within the range of about 2.1-2.3, and being configured to be mixed with (a) to provide a homogeneous solution of (a) and (b); and(c) a second solution having a pH within the range of about 6.0 to 11.0 and being configured to be mixed with the homogeneous solution of (a) and (b),wherein the thiol group and the electrophilic groups are non-reactive in a dry environment, and wherein each of (a), (b) and (c) is packaged separately and admixed immediately prior to use. 2. The kit of claim 1, wherein prior to use, each component is in a separate sterile package. 3. The kit of claim 1, further comprising a delivery device. 4. The kit of claim 3, wherein the delivery device is a multi-component spray device. 5. The kit of claim 4, wherein the multi-component spray device is a multiple-compartment syringe system having multiple barrels, a mixing head, and an exit orifice. 6. The kit of claim 5, wherein the dry powder composition, the first solution, and the second solution are housed separately in the multiple-compartment syringe system. 7. The kit of claim 4, wherein the delivery device is a pressurized delivery device. 8. The kit of claim 7, wherein the pressurized delivery system comprises: a plurality of fluid component inlets each adapted to communicate with a source of different fluid components;at least one carrier fluid inlet adapted to communicate with a source of a pressurized carrier fluid;a diffuser surface located downstream from the plurality of fluid component inlets and the at least one carrier fluid inlet; andan outlet extending through the diffuser surface,wherein the diffuser surface is adapted to receive fluid components thereon and has a shape effective to direct and maintain each received fluid component in a different flow path toward the outlet for mixing and dispensing therethrough by the pressurized carrier fluid from the at least one carrier fluid inlet. 9. The kit of claim 8, wherein the pressurized carrier fluid is pressurized air. 10. The kit of claim 8, wherein the fluid components are the first solution and the second solution. 11. The kit of claim 1, wherein the kit further comprises a biologically active agent and the medical application involves delivering the biologically active agent. 12. The kit of claim 11, wherein the biologically active agent is packaged with the dry powder composition. 13. The kit of claim 11, further comprising a pharmaceutically acceptable carrier packaged with the biologically active agent and the dry powder composition. 14. The kit of claim 11, wherein the biologically active agent is packaged in the first solution. 15. The kit of claim 11, wherein the biologically active agent is packaged in the second solution. 16. The kit of claim 11, further comprising a pharmaceutically acceptable carrier as a fourth component. 17. The kit of claim 16, wherein the biologically active agent is packaged with the pharmaceutically acceptable carrier. 18. The kit of claim 1, wherein the medical application involves adhering or sealing biological tissue. 19. The kit of claim 1, wherein the medical application involves bioadhesion. 20. The kit of claim 1, wherein the first hydrophilic polymer core and the second hydrophilic polymer core are independently a linear, branched, dendrimeric, hyperbranched, or star polymer. 21. The kit of claim 20, wherein the first hydrophilic polymer core and the second hydrophilic polymer core are independently selected from polyalkylene oxides; polyols; poly(oxyalkylene)-substituted diols and polyols; polyoxyethylated sorbitol; polyoxyethylated glucose; poly(acrylic acids), analogs and copolymers thereof; polymaleic acids; polyacrylamides; poly(olefinic alcohols); poly(N-vinyl lactams); polyoxazolines; polyvinylamines; and copolymers thereof 22. The kit of claim 21, wherein the first hydrophilic polymer core and the second hydrophilic polymer core are independently a polyalkylene oxide or a polyol selected from polyethylene glycol and poly(ethylene oxide)-polypropylene oxide) copolymers. 23. The kit of claim 22, wherein the hydrophilic polymer is a poly(oxyalkylene)-substituted polyol, wherein the polyol is selected from mono-, di- and tri-polyoxyethylated glycerol, mono- and di-polyoxyethylated propylene glycol, mono- and di-polyoxyethylated trimethylene glycol, and pentaerythritol.
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