Bone screw for use in orthopaedic surgery

Details Bone screw for use in orthopaedic surgery Bone screw for use in orthopaedic surgery

2005-09-27

2005-09-27

Philogene, Pedro (Department: 3732)

Surgery

Instruments

Orthopedic instrumentation

Reexamination Certificate

active

06949100

ABSTRACT:
The invention relates to an improved bone screw for use in orthopaedic surgery, in particular with external fracture fixation devices, of the type which comprises ahead (3), a shank (4), and a threaded portion (5) tapering towards a tip (2) at the opposite end from the head (3). Advantageously, the threaded portion (5) has at least one constant pitch section comprising threads (9) which have a triangular cusp-like profile in cross section and are separated from each other by a shaped bottom land with a concave profile (10) defined by two countersloping planes.

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