METHOD OF FABRICATING SHEET FOR CARTILAGE TISSUE REGENERATION
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United States of America Patent
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Issued Date -
Sep 3, 2009
app pub date -
Feb 28, 2006
filing date -
Mar 1, 2005
priority date (Note) -
Abandoned
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Abstract
An objective of the present invention is to provide a production method of a sheet for regenerating a cartilage tissue, which uses a conventional sheet-shaped porous body comprising a biological absorbency synthetic high polymer, such as polylactic acid, polyglycolic acid and a copolymer of lactic acid and glycolic acid. The sheet for regenerating the cartilage tissue can differentiate chondrocytes or stem cells without culturing the cells by pressurizing such as a pressurizing culture like the conventional method, and can accumulate the cells in a supporting carrier with high efficiency. The sheet for regenerating the cartilage tissue is produced by the steps of; seeding chondrocytes or stem cells differentiating to the chondrocytes on a sheet-shaped porous body comprising a biological absorbency synthetic high polymer; taking the porous body into a culture liquid; applying acceleration of 100 to 1000 G to the porous body for a predetermined time; and culturing the porous body without applying the acceleration.
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