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US 5,019,082 AGranted
Rasp-like reaming instrument
AssigneeSulzer Brothers Limited
InventorsOtto Frey, Rudolf Koch
Life of this patent
Estimating the term…
Abstract
The rasp-like reaming instrument is constructed as a hollow body with exterior teeth and openings adjacent the teeth. During use, bone material which is peeled off by the teeth is directed through the openings into the interior of the body to avoid accumulation of the material under the teeth. The cutting edges of the teeth remain unencumbered during a reaming operation.
Claims9
A rasp-like reaming instrument for bones comprising
- an elongated hollow body of slender shape adapted to the shape of a prosthesis to be implanted in a bone;
- a plurality of circumferentially disposed openings in said body;
- and
- a plurality of circumferentially disposed teeth on said body for peeling bone material from within a bone, each said tooth having one of said openings adjacent thereto to permit passage of peeled bone material into said hollow body.
1 more element
A rasp-like reaming instrument for bones comprising
- an elongated hollow body;
- a plurality of circumferentially disposed openings in said body;
- a plurality of circumferentially disposed teeth on said body for peeling bone material from within a bone, each said tooth having one of said openings adjacent thereto to permit passage of peeled bone material into said hollow body;
- and
- an upper arcuate part secured to said body to form an anvil for a driving instrument.
2 more elements
A rasp-like reaming instrument for bones comprising
- an elongated hollow body conically shaped to taper inwardly towards a distal end;
- a plurality of circumferentially disposed openings in said body;
- and
- a plurality of circumferentially disposed teeth on said body for peeling bone material from within a bone, each said tooth having one of said openings adjacent thereto to permit passage of peeled bone material into said hollow body.
1 more element
Dependencies are inferred from the claim text.