Surgery – Instruments – Orthopedic instrumentation
Patent
1991-07-22
1993-08-17
Hafer, Robert A.
Surgery
Instruments
Orthopedic instrumentation
606 77, A61B 1756
Patent
active
052364313
ABSTRACT:
The resorbable fixation device is useful for treating torn bodily material in vivo. It has a tip, a head, and a cylindrically shaped shaft portion lying between the tip and the head. The shaft portion has at least one retention element protruding radially therefrom to facilitate insertion of said shaft portion longitudinally into the bodily material in a forward axial direction extending from the tip to the head and to restrict movement of the shaft portion through the bodily material in a backward axial direction opposite to the forward direction. The shaft portion has further a hollow body with at least one radial opening extending transversely through the walls surrounding the hollow body and rendering the shaft radially elastic. The walls surrounding the hollow body are provided with at least one stiffening element providing a controlled stiffness to the fixation device.
REFERENCES:
patent: 3029486 (1962-04-01), Raymond
patent: 3272059 (1966-09-01), Lyday
patent: 3309955 (1967-03-01), Turnbull
patent: 3350976 (1967-11-01), Topf
patent: 3860999 (1975-01-01), Meyer
patent: 4233878 (1980-11-01), McGauran
patent: 4392278 (1983-07-01), Mugglestone
patent: 4924865 (1990-05-01), Bays
patent: 4976715 (1990-12-01), Bays
Gogolewski Sylwester
Perren Stephan M.
Brown Michael
Hafer Robert A.
Synthes
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