Bone rasp
First Claim
1. A rasp adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue, the rasp comprising a generally plate-like body having opposite generally parallel major surface portions, an attaching means having a center for detachably attaching the rasp to a powered device for driving the rasp, and a plurality of rasp portions arranged along the rasp for substantially evenly rasping hard tissue, each rasp portion having a center, and a plurality of slots through the body extending generally radially outwardly from the center of the portion to define a plurality of cantilever cutting members extending generally radially inwardly of the rasp portion generally toward the center of the rasp portion and separated from one another by the slots, the cutting members being bent to project outwardly from the major surface portions of the body with alternating members of each rasp portion being bent to project outwardly from opposite surface portions of the body.
3 Assignments
0 Petitions
Accused Products
Abstract
A rasp adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue, and a method of forming such a rasp are disclosed. The rasp comprises a plate-like body having opposite generally parallel major surface portions, and may be detachably attached to a powered device for driving the rasp. A plurality of rasp portions are arranged along the rasp for substantially evenly rasping hard tissue. Each rasp portion has a center, and a plurality of slots through the body extending generally radially outwardly from the center of the portion to define a plurality of cantilever cutting members extending generally radially inwardly of the rasp portion generally toward the center of the rasp portion and separated from one another by the slots. The cutting members are bent to project outwardly from the major surface portions of the body with alternating members of each rasp portion being bent to project outwardly from alternating major surface portions of the body.
196 Citations
17 Claims
- 1. A rasp adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue, the rasp comprising a generally plate-like body having opposite generally parallel major surface portions, an attaching means having a center for detachably attaching the rasp to a powered device for driving the rasp, and a plurality of rasp portions arranged along the rasp for substantially evenly rasping hard tissue, each rasp portion having a center, and a plurality of slots through the body extending generally radially outwardly from the center of the portion to define a plurality of cantilever cutting members extending generally radially inwardly of the rasp portion generally toward the center of the rasp portion and separated from one another by the slots, the cutting members being bent to project outwardly from the major surface portions of the body with alternating members of each rasp portion being bent to project outwardly from opposite surface portions of the body.
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11. A method of manufacturing a rasp adapted for rasping generally hard tissue, such as bone, cartilage and associated tissue, the method comprising the following steps:
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providing a hardened stainless steel plate having opposite generally parallel major surfaces; forming an attaching means having a center on the plate for detachably attaching the rasp to a powered device for driving the rasp; and forming a plurality of rasp portions arranged along the rasp for substantially evenly rasping hard tissue, including the steps of forming each rasp portion by; laser cutting a plurality of slots through the body to extend generally radially outwardly from a center to a perimeter to define a plurality of cantilever cutting members extending radially inwardly of the rasp portion; and bending the cutting members to project outwardly from the major surfaces of the body with alternating members of the rasp portion being bent outwardly from alternating respective major surfaces of the body. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification