Method for fabricating cell-containing implants
First Claim
1. A method of preparing and then implanting cells comprising the steps of culturing said cells to grow and proliferate on microcarrier particles in a stirred bioreactor under normal gravity conditions for an extended period of time to secrete an extracellular matrix thereby producing a cell-microcarrier particle aggregate and then implanting said cell-microcarrier particle aggregate into a patient to replace and repair damaged or diseased tissue.
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Abstract
Disclosed is a method of growing cells on biodegradable microcarrier particles and more specifically growing chondrocytes for an extended period of time until they aggregate. These aggregated cells can be injected directly or shaped for implantation into the body. In another embodiment of this invention, the cell microcarrier aggregates are grown in a mold that is shaped to conform to the geometry of the desired body part to be replaced. An apparatus for shaping the aggregated cells is disclosed. The aggregated cells can be supplied in a kit.
79 Citations
34 Claims
- 1. A method of preparing and then implanting cells comprising the steps of culturing said cells to grow and proliferate on microcarrier particles in a stirred bioreactor under normal gravity conditions for an extended period of time to secrete an extracellular matrix thereby producing a cell-microcarrier particle aggregate and then implanting said cell-microcarrier particle aggregate into a patient to replace and repair damaged or diseased tissue.
- 29. A method of preparing and then implanting chondrocytes comprising the steps of culturing said chondrocytes on microcarriers in an implant assembly unit for a period of time under normal gravity conditions by which said chondrocytes secrete and extracellular matrix and aggregate and thus can be shaped or cut to conform to the body area which will receive said chondrocytes and then implanting said chondrocytes in a patient to replace and repair damaged or diseased tissue.
Specification