Patent №
US 4,552,136
Granted
1985-11-12
Filed 1983
Owner
HOWMEDICA, INC., A CORP. OF DE
+2 more
Lab
—
AI components
1
planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06543203
A femoral rasp for preparing an intramedullary canal for receiving the stem of a femoral hip prosthesis comprises a body section generally divided into a wide proximal portion and a substantially longer narrow distal portion. The body section has a shape that generally corresponds to the stem of a femoral hip prosthesis to be inserted into the prepared cavity. A plurality of spaced apart cutting teeth are located on selected portions of the outside surface of the body section for removing cancellous tissue and bone. A smooth surface on the lateral face of the body section at the free end of the distal portion prevents violation of the lateral cortex upon insertion of the body section into the intramedullary canal. Removal of the body section and insertion of the hip prosthesis results in a glove fit between the stem of the prosthesis and the cavity formed by the femoral rasp.
AI classification
Ownership
HOWMEDICA, INC., A CORP. OF DE
assignment · 41860005
PFIZER HOSPITAL PRODUCTS GROUP, INC.
assignment · 44760960
HOWMEDICA INC.
namechg · 62740371
Assignors
KENNA, ROBERT V.
On an employer assignment, the assignors are typically the inventors.