Surgical instrument with near-axial geometry

Details Surgical instrument with near-axial geometry Surgical instrument with near-axial geometry

2007-01-16

2007-01-16

Dvorak, Linda C. M. (Department: 3739)

Surgery

Instruments

C433S124000

Reexamination Certificate

active

11266982

ABSTRACT:
A surgical instrument with near-axial geometry includes a linearly elongated handle portion having a handle axis defined along its length. The handle portion is joined to a linearly elongated working portion by an offset portion. The working portion includes a working axis defined along its length, and the working axis and handle axis intersect at an angle which is no greater than 5 degrees. In a specific embodiment, the base of the working tip of the working portion falls within 4 millimeters of the vertex of the angle.

REFERENCES:
patent: 3994301 (1976-11-01), Agris
patent: 5234009 (1993-08-01), Lemon et al.
patent: 5531749 (1996-07-01), Michelson
patent: 5589183 (1996-12-01), Jannetta
patent: 5962004 (1999-10-01), Jannetta
patent: 6096026 (2000-08-01), Schultz
patent: 6131228 (2000-10-01), Chen et al.
patent: 6458143 (2002-10-01), Sugai
patent: WO 99/15084 (1999-04-01), None
“Mizuho Skull Base Instrumentation”, Brochure dated 1999.

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