Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2006-10-31
2006-10-31
Saucier, Sandra E. (Department: 1651)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C435S182000
Reexamination Certificate
active
07128931
ABSTRACT:
The present invention relates to semi-permeable microcapsules, which exhibit an increased resistance to mechanical stresses as well as an increased resistance to chemical degradation. More specifically, this semi-permeable microcapsule has a bead enclosing a material such as living cells, covalently linked to a semi-permeable layer, made of a polycation cross-linking derivative, covering the bead. The present invention is also directed to a pharmaceutical composition comprising the above-mentioned semi-permeable microcapsules. The present invention is also directed to the use of such microcapsule in a method for microencapsulating a beaded material and in a method for treating diabetes in a subject.
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Halle Jean-Pierre
Leblond Francois
Halle' Jean-Pierre
Kaufman Marc S.
Leblond Francois
Nixon & Peabody LLP
Singh Satyendra K.
LandOfFree
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