[미국특허]
Implantable substrate coated with a macromer having free radical polymerizable substituents
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-002/00
C12N-011/04
C12N-011/00
A61K-038/00
A61K-009/14
A61K-031/74
출원번호
US-0607247
(2003-06-25)
발명자
/ 주소
Hubbell,Jeffrey A.
Pathak,Chandrashekhar P.
Sawhney,Amarpreet S.
Desai,Neil P.
Hill,Jennifer L.
Hossainy,Syed F. A.
출원인 / 주소
Board of Regents, The University of Texas System
대리인 / 주소
Pabst Patent Group LLP
인용정보
피인용 횟수 :
15인용 특허 :
74
초록▼
Water soluble macromers are modified by addition of free radical polymerizable groups, such as those containing a carbon-carbon double or triple bond, which can be polymerized under mild conditions to encapsulate tissues, cells, or biologically active materials. The polymeric materials are particula
Water soluble macromers are modified by addition of free radical polymerizable groups, such as those containing a carbon-carbon double or triple bond, which can be polymerized under mild conditions to encapsulate tissues, cells, or biologically active materials. The polymeric materials are particularly useful as tissue adhesives, coatings for tissue lumens including blood vessels, coatings for cells such as islets of Langerhans, coatings, plugs, supports or substrates for contact with biological materials such as the body, and as drug delivery devices for biologically active molecules.
대표청구항▼
We claim: 1. A substrate comprising a surface having a polymeric coating thereon formed by free radical polymerization of a biocompatible, substantially water soluble macromer comprising at least two free radical polymerizable substituents, wherein the coating further comprises one or more polysacc
We claim: 1. A substrate comprising a surface having a polymeric coating thereon formed by free radical polymerization of a biocompatible, substantially water soluble macromer comprising at least two free radical polymerizable substituents, wherein the coating further comprises one or more polysaccharides wherein the substrate is an implantable material. 2. The substrate of claim 1, wherein the implantable material is selected from the group consisting of woven material, a velour and an expanded membrane. 3. The substrate of claim 1, wherein the macromer is poly(ethylene glycol) and the free radical polymerizable substituents comprise carbon-carbon double bonds. 4. The substrate of claim 1, wherein the polymeric coating is formed on the substrate surface by: a) applying to the surface the macromer and a free radical polymerization initiator; and b) exposing the initiator to an agent to activate the initiator to cause the polymerization of the macromer to form the polymeric coating on the surface. 5. The substrate of claim 4, wherein the initiator is selected from the group consisting of visible light or long wavelength ultraviolet light-activatable free radical initiators, thermal activatable free radical initiators, benzoyl peroxide, potassium persulfate and ammonium persulfate. 6. The substrate of claim 1, wherein the polymeric coating is formed on the substrate surface by: a) applying to the surface a free radical polymerization initiator with the macromer to form a mixture; and b) exposing the mixture to an agent to activate the initiator to cause the polymerization of the macromer to form the polymeric coating on the surface. 7. The substrate of claim 6, wherein the initiator is selected from the group consisting of visible light or long wavelength ultraviolet light-activatable free radical initiators, thermal activatable free radical initiators, benzoyl peroxide, potassium persulfate and ammonium persulfate. 8. The substrate of claim 1, wherein the polysaccharide is selected from the group consisting of alginate, hyaluronic acid, chondroitin sulfate, dextran, dextran sulfate, heparin, heparin sulfate, heparan sulfate, chitosan, gellan gum, xanthan gum, guar gum, water soluble cellulose derivatives, and K-carrageenan.
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