Patient Selectable Joint Arthroplasty Devices and Surgical Tools
First Claim
Patent Images
1. A surgical tool for a patella, comprising:
- a first component having a contact surface for engaging an uncut patella surface, wherein the contact surface is a substantial mirror image of the uncut patella surface; and
a guide for directing a surgical instrument in preparing the patellar surface for receiving a patellar implant.
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Abstract
A patellar 3-D guidance tool includes a template. The template includes at least one contact surface for engaging a surface of the patella. The at least one contact surface substantially conforms with the surface associated with the patellar. At least one guide aperture directs movement of a surgical instrument, wherein the shape and/or position of the guide aperture is based, at least in part, on three or more anatomic reference points associated with the patellar.
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Citations
20 Claims
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1. A surgical tool for a patella, comprising:
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a first component having a contact surface for engaging an uncut patella surface, wherein the contact surface is a substantial mirror image of the uncut patella surface; and a guide for directing a surgical instrument in preparing the patellar surface for receiving a patellar implant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical tool for a patella, comprising:
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a mold having a patient-specific interior mold having an anterior surface which mates or substantially mates with the patients'"'"' uncut patellar geography; and
a posterior surface for mating with an attachment;an attachment having an anterior surface that mates with the posterior surface of the mold;
the attachment designed to hold the mold on the patella; andat least one guide in the mold or the attachment for directing a surgical instrument in preparing the patellar surface for receiving a patellar implant. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of preparing a patella for receiving a patellar implant, comprising:
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mating, to an uncut patella surface, a first component comprising a contact surface for engaging an uncut patella surface, wherein the contact surface is a substantial mirror image of the uncut patella surface, and a guide for directing a surgical instrument in preparing the patellar surface for receiving a patellar implant; and guiding a surgical instrument via the guide so as to modify the patella to result in a modified patellar surface. - View Dependent Claims (19, 20)
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Specification