Acetabular rim cutter
AssigneeBenoist Girard SAS
InventorsAndrew Timperley, Philippe Lavieille, Pascal Collet, Franck Le Bon, Robin Ling, Graham Gie
Life of this patent
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Abstract
An acetabular rim cutter has an annular cutting face provided on a rotatable carrier. A coupler is provided for attaching the carrier to a rotational power source. A guide element is axially aligned with the cutting face to locate and align the cutting face on the acetabulum with which it is to be used. Preferably, the guide element is axially movable in relation to the cutting face and a resilient element is provided for biasing it axially away therefrom.
Claims8
An acetabular cutter for preparing an acetabulum comprising:
- a hollow handle;
- a drive shaft rotatably mounted within said hollow handle, said shaft having a rotating head at a first end and a second end connected to a power source;
- an acetabular rim cutter connected to said drive shaft rotating head at the first end thereof, said cutter having teeth thereon concentric about a rotational axis of said head;
- and
- a guide element mounted on said handle for engaging the acetabulum and extending beyond said first drive shaft end, the guide element being axially movable along said rotational axis.
A kit for preparing an acetabulum comprising:
- a rotary drive tool having a hollow handle with a rotatable drive shaft therein, the drive shaft having a drive head at a first end and a connection for a power source at a second end;
- a plurality of dome shaped cutting elements for preparing the acetabulum mountable on said drive head;
- and
- a plurality of rim cutting elements mountable on said drive head and having cutting teeth located along a circumference concentric about a rotational axis of said drive head, said teeth forming a planar cutting face.
Dependencies are inferred from the claim text.