Prosthesis holding system
First Claim
1. A prosthetic cup holder assembly for securely positioning a prosthetic cup, said cup including an interior concave surface, an exterior convex surface and a rim extending therebetween, a portion of said rim being configured to define an inwardly facing engagement means and an opposed outwardly facing engagement means, said holder assembly comprising:
- a holder having a tab means dimensioned and disposed for engaging the inwardly facing engagement means of the cup and a clamp mounting means spaced from the tab means of the holder; and
a clamp means engageable with the clamp mounting means of the holder for clamping engagement with the outwardly facing engagement means of the cup, whereby upon engagement of the tab means of the holder with the inwardly facing engagement means of the cup, the clamp means can be clamped into tight clamping engagement with the outwardly facing engagement means of the cup, for securely engaging the cup with the holder.
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Abstract
A prosthesis holding system is provided for holding and positioning a prosthetic cup during surgery. The rim of the cup includes opposed inwardly and outwardly facing recesses. A holder includes an elongated rod having a shoe at one end. The shoe includes a tab for engaging the inwardly facing recess in the rim of the cup. The shoe further includes a threaded aperture alignable with the outwardly facing recess in the rim of the cup. A clamping screw is engageable with the threaded aperture and is further engageable with the outwardly facing recess in the rim of the cup. Tightening of the clamping screw securely holds the cup without interfering with either the interior concave surface of the cup or the exterior convex surface of the cup, to enable efficient implantation of the cup in a patient during surgery.
209 Citations
17 Claims
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1. A prosthetic cup holder assembly for securely positioning a prosthetic cup, said cup including an interior concave surface, an exterior convex surface and a rim extending therebetween, a portion of said rim being configured to define an inwardly facing engagement means and an opposed outwardly facing engagement means, said holder assembly comprising:
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a holder having a tab means dimensioned and disposed for engaging the inwardly facing engagement means of the cup and a clamp mounting means spaced from the tab means of the holder; and a clamp means engageable with the clamp mounting means of the holder for clamping engagement with the outwardly facing engagement means of the cup, whereby upon engagement of the tab means of the holder with the inwardly facing engagement means of the cup, the clamp means can be clamped into tight clamping engagement with the outwardly facing engagement means of the cup, for securely engaging the cup with the holder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11)
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8. A system for holding a prosthetic device during surgery, said system comprising:
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a prosthetic cup having an inner concave surface, an outer convex surface and a rim extending therebetween, a portion of said rim defining a projection having an inwardly facing recess and an outwardly facing engagement means; a holder comprising a holding shoe having a tab for engaging the inwardly facing recess of the cup and clamp mounting means disposed on the shoe at a location thereon spaced from the tab; and
,a clamp engageable with the clamp mounting means in the shoe of the holder, said clamp comprising an end portion configured to engage the outwardly facing engagement means of the cup, whereby the cup is securely clampable between the tab of the holder shoe and the end of the clamp. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An assembly for holding an acetabular cup during surgery, said cup including a medially facing convex surface, a laterally opening concave surface and a rim extending between the concave and convex surfaces, said rim being defined by at least one generally planar cutting plane and including a projection at a superior region of said cup, said projection including an inferior orienting surface, a medial recess having a lateral wall aligned to said orienting surface at an acute angle, and a laterally opening conical recess having an inferior aspect, said assembly comprising:
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a holding shoe having an orienting surface generally conforming to the shape of the orienting surface on the cup, a tab having a lateral face aligned to the orienting surface of the holding shoe at an angle substantially corresponding to the angular alignment between the orienting surface and lateral wall of the cup and a threaded aperture extending through said shoe generally parallel to the orienting surface thereof; a clamping screw threadedly engageable with the threaded aperture in the holding shoe, said clamping screw including a conical tip for engagement with the conical recess in the cup; and a handle rigidly extending from the holding shoe, said handle being aligned with respect to the orienting surface of the holding shoe to substantially avoid interference between the handle and the cup during surgery.
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Specification