System with a screwdriver and a bone screw

Details System with a screwdriver and a bone screw System with a screwdriver and a bone screw

2005-03-28

2008-11-18

Philogene, Pedro (Department: 3733)

Surgery

Instruments

Orthopedic instrumentation

C606S305000

Reexamination Certificate

active

07452361

ABSTRACT:
A system is provided with a screwdriver and a bone screw (30), wherein the screwdriver has a tool (4), which is provided with at least two radially and axially extending tool blades (5, 6, 7, 8), which can be caused to engage groove-like blade slots (36, 38) of the bone screw (30) in a positive-locking manner. To improve the handling of a bone screw (30) even in case of the smallest possible dimensions, provisions are made according to the present invention for the tool blades (5, 6, 7, 8) to form at least one elastic clamping section (20, 21, 22, 23), with which the tool (4) can be caused to clampingly engage the bone screw (30) in the area of the blade slots (36, 38).

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patent: 7249544 (2007-07-01), Totsu
patent: 35 39 502 (1987-02-01), None
patent: 38 04 749 (1989-03-01), None
patent: 100 44 714 (2002-04-01), None
patent: 2 723 839 (1996-03-01), None

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