Femur bone rasp with adjustable handle
First Claim
1. A bone rasp for preparing the medullary canal of a femur for receipt of a prosthesis, said bone rasp comprising:
- a bone rasp blade member; and
an adjustable handle detachably assembled to said blade member, said adjustable handle including;
a stationary base member assembled to said blade member having oppositely-disposed front and rear panels and a concave base surface extending therebetween, said front and rear panels in combination with said base surface defining an interior channel;
an adjustable handle shaft pivotally secured to said stationary base member for selective positioning of said handle shaft, said handle shaft being disposed within said interior channel and having a convex lower surface disposed against said concave base surface; and
insertable means for fixing the position of said handle shaft relative to said stationary base member.
1 Assignment
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Accused Products
Abstract
A bone rasp for preparing the medullary canal of the femur includes a rasp blade portion shaped and tapered so as to conform to the medullary canal and a handle portion which is designed to be manually attached to the rasp blade and detached from the rasp blade for sterilizing and storing. The handle portion is arranged into two components which are pivotally connected and pinned together. The stationary portion of the handle attaches directly to the rasp blade and the movable or adjustable portion is pinned to the stationary portion at a pivoting location and secured in a selected orientation by a second pin. A series of seven oblong slots are disposed in the stationary portion and arranged on 71/2° intervals so as to give the adjustable portion of the handle an approximate 45° range of adjustment. The adjustable handle portion is configured with the stationary portion such that the lower end of the adjustable handle portion contacts and pivots directly against a concave surface so that all mallet forces directed to the adjustable handle portion are transmitted to the stationary portion and not to either the pivot pin or the securing pin.
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Citations
1 Claim
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1. A bone rasp for preparing the medullary canal of a femur for receipt of a prosthesis, said bone rasp comprising:
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a bone rasp blade member; and an adjustable handle detachably assembled to said blade member, said adjustable handle including; a stationary base member assembled to said blade member having oppositely-disposed front and rear panels and a concave base surface extending therebetween, said front and rear panels in combination with said base surface defining an interior channel; an adjustable handle shaft pivotally secured to said stationary base member for selective positioning of said handle shaft, said handle shaft being disposed within said interior channel and having a convex lower surface disposed against said concave base surface; and insertable means for fixing the position of said handle shaft relative to said stationary base member.
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Specification
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- Resources
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Current AssigneeScott M. Durlacher
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Original AssigneeScott M. Durlacher
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InventorsDurlacher, Scott M., Durlacher, James M.
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Primary Examiner(s)Hafer, Robert A.
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Assistant Examiner(s)HANLON, BRIAN EMMETT
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Application NumberUS07/869,769Time in Patent Office579 DaysField of Search606/53, 606/79, 606/80, 606/82, 606/84, 606/85, 623/23, 403/92, 403/93, 403/91, 403/161, 403/315, 403/319US Class Current606/85CPC Class CodesA61B 17/1659 Surgical rasps, files, plan...A61B 17/1668 for the upper femur A61B17/...A61B 2017/0046 with a releasable handle; w...
