Ancillary apparatus for knee prosthesis
AssigneeMedacta S.A.
InventorsMike Bullivant, Alberto Siccardi
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Abstract
Apparatus to guide blades or saws of femoral cuts for knee prosthesis, consisting of four blocks, two blocks which move only vertically and two blocks which move only horizontally. Cams are provided which are accompanied by followers and have helix tracks whose pitch permits the apparatus to adapt to different prostheses.
Claims7
An ancillary apparatus for knee prosthesis, in particular for guiding the femoral cut blades or saws which permit the insertion of the prosthesis components mostly adapted to the conformation of each patient, said apparatus comprising several blade-guide blocks vertically approached, including a first inferior, (lower or bottom) block for posterior cut guide, a superior (head) block for the anterior cut, two median blocks for posterior, anterior chamfer cuts, and means of support, seal and motion of said blocks taken singularly and/or all together,
- characterized in that said terminal blocks are only vertically movable, have at least two vertical holes for the passage of said motion means, at least one horizontal hole for the insertion of means complementary to said means front slits which are inclined on a horizontal line, are remote in respect to the inferior and superior edges of said end blocks;
- and a top slit the intermediate blocks being moveable only horizontally, being provided with holes corresponding to said holes and with inclined slits on the edges respectively of said intermediate blocks.
Dependencies are inferred from the claim text.