Set screw with deformable member

Details Set screw with deformable member Set screw with deformable member

2008-07-23

2011-11-15

Woodall, Nicholas (Department: 3775)

Surgery

Instruments

Orthopedic instrumentation

C606S270000

Reexamination Certificate

active

08057523

ABSTRACT:
The present application is directed to set screws used with fasteners to capture and engage an elongated member. The set screws include a body sized to attach to a receiver of the fastener. A deformable member may be attached to an end of the set screw and provides for the set screw to more fully engage the elongated member to prevent potential damage to the elongated member and prevent the set screw from backing out of the fastener. In one embodiment, just the deformable member contacts the elongated member. In another embodiment, the deformable member and the body contact the elongated member. In yet another embodiment, a contact member is attached to the deformable member to contact against the elongated member.

REFERENCES:
patent: 936549 (1909-10-01), Lundholm
patent: 1107077 (1914-08-01), Kenworth
patent: 3479072 (1969-11-01), Kosar
patent: 3501993 (1970-03-01), Swenson
patent: 3645161 (1972-02-01), Wesker
patent: 4671716 (1987-06-01), Grass
patent: 6116832 (2000-09-01), Wolf et al.
patent: 6960212 (2005-11-01), Richelsoph et al.
patent: 7320570 (2008-01-01), Czarnek
patent: 7516991 (2009-04-01), Cheng
patent: 2003/0185648 (2003-10-01), Blaess
patent: 2005/0180839 (2005-08-01), Czarnek

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