Process for regenerating bone and cartilage
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United States of America Patent
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Nov 17, 1998
Grant Date -
N/A
app pub date -
May 9, 1996
filing date -
Jul 8, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
Bone and cartilage are regenerated in a patient by a process of removing fatty tissue such as omentum tissue from a patient, comminuting the tissue to form small tissue particles, suspending the particles in a liquid to form a suspension, depositing the suspension on a solid carrier to prepare a solid implanting material, implanting the implanting material in a patient in an environment favoring bone or cartilage formation, and regenerating bone or cartilage in the patient. The carrier can be demineralized bone, collagen, mineral material or synthetic polymer material in pulverulent, textile, porous particle or monolith form. A cell adhesion agent may be applied to the carrier or added to the suspension, and a growth factor may be deposited on the carrier. Comminuting is performed by digesting with an enzyme and/by mechanically comminuting. Liquid used to form the suspension may contain a gel precursor which is gelled after the suspension is deposited to the carrier. Preferably, the implanting material is implanted within about 1 hour of removing the fatty tissue from the patient.
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