Connection member for the connection of a resilient rod with a b

Details Connection member for the connection of a resilient rod with a b Connection member for the connection of a resilient rod with a b

1995-06-30

1997-08-19

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

606 72, 606 73, A61B 1756

Patent

active

056582846

ABSTRACT:
A connection member for the connection of a resilient rod with a bone screw that can be anchored in a vertebra. The connection member comprises a fastener that acts on the rod, an accommodation part and a connection part. The accommodation part has a first opening for the accommodation of the rod. The first opening has a substantially round inner boundary surface formed from several partial surfaces with at least three different radii of curvature such that upon connection of the connection member with the resilient rod, the connection member has at least three regions of contact with the resilient rod at least three distinct and non-contiguous points.

REFERENCES:
patent: 5002542 (1991-03-01), Frigg
patent: 5005562 (1991-04-01), Cotrel
patent: 5010879 (1991-04-01), Moriya et al.
patent: 5030220 (1991-07-01), Howland
patent: 5147360 (1992-09-01), Dubousset
patent: 5312404 (1994-05-01), Asher et al.
patent: 5487744 (1996-01-01), Howland
patent: 5520687 (1996-05-01), Howland

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