Patient Selectable Joint Arthroplasty Devices and Surgical Tools
AssigneeConforMIS, Inc.
InventorsWolfgang Fitz, Philipp Lang, Raymond A. Bojarski, Daniel Steines
Life of this patent
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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.
Claims20
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.
A surgical tool for a patella, comprising:
- 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;
- and
- at least one guide in the mold or the attachment for directing a surgical instrument in preparing the patellar surface for receiving a patellar implant.
A method of preparing a patella for receiving a patellar implant, comprising:
- 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.
Dependencies are inferred from the claim text.