A biocompatible capsule for containing cells for implantation is prepared containing an inner support that provides tensile strength to the capsule. The capsule may be a tubular semipermeable membrane such as a hollow fiber membrane having both ends sealed. A rod shaped inner support extends through...http://www.google.es/patents/US5786216?utm_source=gb-gplus-sharePatente US5786216 - Inner-supported, biocompatible cell capsules
