Patella planer with adjustable stop
First Claim
Patent Images
1. A surgical apparatus for preparing a surface on a patella of a patient to receive a prosthetic implant, said apparatus comprising:
- a circularly driven surface planer,a base plate for supporting said patella,guide means connected to said base plate for guiding said surface planer against said patella to cut away a portion of said patella, andstop means connected to said guide means for limiting said portion of said patella to be cut away by said surface planer, said stop means havingmeans for selecting a depth of cut into said patella, andan adjustable pointer for setting said means for selecting a depth of cut to an initial zero condition dependant on the thickness of said patella.
6 Assignments
0 Petitions
Accused Products
Abstract
A patella planer for preparing a resected surface on a patella in a single operation. The patella planer has an adjustable stop which can be used on either side of the planer so that the planer may be used on the right or left knee. The adjustable stop has a floating zero pointer which can be set to accommodate varying thickness of the patient'"'"'s patella. The amount of patella material to be removed can be selected by adjusting an offset stop pin.
81 Citations
14 Claims
-
1. A surgical apparatus for preparing a surface on a patella of a patient to receive a prosthetic implant, said apparatus comprising:
-
a circularly driven surface planer, a base plate for supporting said patella, guide means connected to said base plate for guiding said surface planer against said patella to cut away a portion of said patella, and stop means connected to said guide means for limiting said portion of said patella to be cut away by said surface planer, said stop means having means for selecting a depth of cut into said patella, and an adjustable pointer for setting said means for selecting a depth of cut to an initial zero condition dependant on the thickness of said patella. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification