Method and apparatus for securing a cranial plate with pins

Details Method and apparatus for securing a cranial plate with pins Method and apparatus for securing a cranial plate with pins

1997-03-25

1999-09-21

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

606 69, A61B 1758

Patent

active

059547235

ABSTRACT:
A device for securing a previously removed cranial plate in position in a cranium to prevent relative movement between opposing bone edges includes a pin containing distal and proximal shanks having ends tapering to a relatively sharp point. One of the shanks is threaded for threadedly engaging the edge of either the cranial plate or the cranium. The shanks are arranged preferably symmetrically about a central collar which has a dimension transverse to the longitudinal axis of the shanks greater than the diameters of the shanks so that the collar forms distal and proximal opposing shoulders for limiting the insertion depth of the pin. A nut is located adjacent the collar or formed as part of the perimeter of the collar to facilitate rotation of the pin to screw in the threaded shank.

REFERENCES:
patent: 4157674 (1979-06-01), Carlson et al.
patent: 4334815 (1982-06-01), Knohl
patent: 5154610 (1992-10-01), Gregorio Gracia
patent: 5613968 (1997-03-01), Lin

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