04689293 is referenced by 92 patents and cites 2 patents.

Living tissue or cells, for example, islets of Langerhans, are microencapsulated for implantation in the body for long term treatment of diabetes or other disease requiring organ transplantation. The microcapsules take the form of a biocompatible semi-permeable hydrogel membrane which permits the passage of materials and oxygen to the cells and metabolic products from the cells while retaining the cells encapsulated. The biocompatible semi-permeable membrane has an outer negatively-charged surface, which imparts to the microcapsules the ability to maintain long term effectiveness.

Title
Microencapsulation of living tissue and cells
Application Number
501445
Publication Number
4689293
Application Date
December 4, 1984
Publication Date
August 25, 1987
Inventor
Anthony M F Sun
Willowdale
CA
Geraldine M O Shea
Toronto
CA
Mattheus F A Goosen
Toronto
CA
Agent
Lahive & Cockfield
Assignee
Connaught Laboratories
CA
IPC
A01N 1/02
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