Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1998-09-10
2000-10-17
Yu, Mickey
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
623 2019, 623 2021, 623 2031, 623 2215, 623 2311, 623 1811, A61F 238
Patent
active
06132468&
ABSTRACT:
A flexible "scaffold" envelope is disclosed which can be used to replace damaged cartilage in knees, shoulders, or other joints of a mammalian body. Designed for use in arthroscopic surgery, the envelope is sufficiently flexible to allow it to be rolled up or folded and inserted into a knee or other joint via a small skin incision. Before insertion, a segment of damaged cartilage is removed from a bone surface, and the bone surface is prepared, using various tools and alignment guides disclosed herein. After the envelope is inserted into the joint, it is unfolded, positioned properly, and anchored and cemented to a bone surface. After anchoring, the envelope is filled via an inlet tube with a polymeric substance that will set and solidify at body temperature. During filling and setting, the surgeon can manipulate the exterior shape of the scaffold envelope, to ensure that the implant will have a proper final shape after the polymer has cured into fully solidified form. Using these materials and methods, a synthetic replacement can be created for damaged or diseased cartilage, having a smooth surface and a non-rigid stiffness closely resembling natural cartilage. The entire procedure can use minimally invasive tools and methods, to avoid having to cut open and fully expose a joint that is being repaired. Various devices and methods are disclosed to facilitate this procedure, including tools and devices to help ensure proper arthroscopic preparation of large bone surfaces, and proper positioning, alignment, anchoring, and filling of a scaffold envelope.
REFERENCES:
patent: 3875595 (1975-04-01), Froning
patent: 3927423 (1975-12-01), Swanson
patent: 4052753 (1977-10-01), Dedo
patent: 4164794 (1979-08-01), Spector et al.
patent: 4344193 (1982-08-01), Kenny
patent: 4756862 (1988-07-01), Spector et al.
patent: 4772287 (1988-09-01), Ray et al.
patent: 4839215 (1989-06-01), Starling et al.
patent: 4895148 (1990-01-01), Bays et al.
patent: 4919667 (1990-04-01), Richmond
patent: 4924865 (1990-05-01), Bays et al.
patent: 4976715 (1990-12-01), Bays et al.
patent: 5007940 (1991-04-01), Berg
patent: 5041138 (1991-08-01), Vacanti et al.
patent: 5067964 (1991-11-01), Richmond et al.
patent: 5171244 (1992-12-01), Caspari et al.
patent: 5263498 (1993-11-01), Caspari et al.
patent: 5304181 (1994-04-01), Caspari et al.
patent: 5314478 (1994-05-01), Oka et al.
patent: 5336266 (1994-08-01), Caspari et al.
patent: 5344459 (1994-09-01), Swartz
patent: 5358525 (1994-10-01), Fox et al.
patent: 5556429 (1996-09-01), Felt
patent: 5632745 (1997-05-01), Schwartz
patent: 5645597 (1997-07-01), Krapiva
patent: 5769899 (1998-06-01), Schwartz et al.
patent: 5865849 (1999-02-01), Stone
patent: 5888220 (1999-03-01), Felt et al.
Burg, K.J., et al, "Modulation of surface and bulk properties of biomedical polymers," Annals N Y Acad Sci 831: 217-22 (1997).
Chen, F.S., et al, "Chondrocyte transplantation and experimental treatment options for articular cartilage defects," Amer J Orthopedics 26: 396-406 (1997).
Hubbell, J.A., "Biomaterials in tissue engineering," Biotechnology 13: 565-76 (1995).
Minas, T., et al, "Current concepts in the treatment of articular cartilage defects," Orthopedics 20: 525-538 (1997).
Thornhill, T.S., "Cartilage resurfacing: Facts, fictions, and facets," Orthopedics 20: 819-820. 1997.
Kelly Patrick D.
Nguyen Tram A.
Yu Mickey
LandOfFree
Arthroscopic replacement of cartilage using flexible inflatable does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arthroscopic replacement of cartilage using flexible inflatable , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arthroscopic replacement of cartilage using flexible inflatable will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-464102