Bone attachment device for use with tissue grafts and membranes

Details Bone attachment device for use with tissue grafts and membranes Bone attachment device for use with tissue grafts and membranes

1997-09-12

1999-10-26

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

606 72, 606 73, 606 53, 606 65, 606 66, A61B 7756

Patent

active

059719850

ABSTRACT:
A self-locking and threaded bone tack screw device (10) for fixing and retaining tissue grafts and synthetic membranes directly to a maxillofacial bone graft site. The tack has an oversized cylindrical dome shaped head (14) for retaining the tissue and synthetic membrane to the bone graft site and a hexagonal recess (14a) for easy insertion and removal of the device. The tip of the device incorporates a sharp pin point (12a) to easily pierce the tissue and membrane and initially penetrate into the bone graft site. A locking flange (12c) locks into the bone graft site in a single direction. A self-tapping screw thread (12f) is provided for driving the pin point tip into the bone graft site. Incorporation of the self-locking pin point tip in series with the self-tapping thread allows the hexagonal tool driven bone tack to be easily inserted and removed from the graft site without compromising its fixation.

REFERENCES:
patent: 2382019 (1945-08-01), Miller
patent: 2685877 (1954-08-01), Dobelle
patent: 2853913 (1958-09-01), Rapata
patent: 3466966 (1969-09-01), Brown
patent: 3494244 (1970-02-01), Wayland
patent: 3810279 (1974-05-01), Swick et al.
patent: 4402641 (1983-09-01), Arff
patent: 4551189 (1985-11-01), Peterson
patent: 4976715 (1990-12-01), Bays et al.
patent: 5261914 (1993-11-01), Warren

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