Joint arthroplasty devices and surgical tools
AssigneeConforMIS, Inc.
InventorsWolfgang Fitz, Philipp Lang, Daniel Steines
Life of this patent
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Abstract
Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.
Claims30
A method of generating a patient-matched surgical tool, the method comprising:
- obtaining first magnetic resonance image data associated with at least a portion of a joint of a patient;
- obtaining second magnetic resonance image data associated with at least a portion of a second joint;
- deriving an electronic model of at least a portion of the joint using at least the first magnetic resonance image data;
- creating a surgical tool using, at least in part, the electronic model;
- wherein the tool includes a contact surface substantially matched to a corresponding surface of the joint and a guide for directing movement of a surgical instrument;
- and
- wherein the position or orientation of the guide relative to the contact surface is adapted at least in part based on information derived from the second magnetic resonance image data.
A method of generating a patient-matched surgical tool, the method comprising:
- obtaining first image data associated with at least a portion of a joint of a patient;
- obtaining magnetic resonance image data associated with at least a portion of at least one second joint;
- deriving an electronic model of at least a portion of the joint using at least the first image data;
- creating a surgical tool using, at least in part, the electronic model;
- wherein the tool includes a contact surface substantially matched to a corresponding surface of the joint and a guide for directing movement of a surgical instrument;
- and
- wherein the position or orientation of the guide relative to the contact surface is adapted at least in part based on information derived from the magnetic resonance image data.
A method for making a patient specific surgical instrument for use in implanting an orthopedic implant in a patient, the process comprising:
- determining at least in part from a first set of image data the surface contours of at least a portion of a surface of or near a joint of the patient;
- determining at least in part from a set of magnetic resonance image data a mechanical axis associated with the joint;
- incorporating a patient-specific surface into the surgical instrument such that the patient-specific surface substantially matches the determined surface contours;
- and
- incorporating a guide into the surgical instrument, wherein the guide is oriented relative to the patient-specific surface based at least in part on the determined mechanical axis.
A method of creating a patient-specific instrument for implanting an orthopedic implant in or about a joint of a patient, the method comprising:
- creating a patient-specific surgical instrument based at least in part on a first magnetic resonance image data set and a second image data set,
- wherein the second image data set is of a type that is different from the first magnetic resonance image data set;
- wherein the surgical instrument has a patient-specific surface that is derived from at least the first magnetic resonance image data and that substantially matches a corresponding surface portion associated with the joint;
- and
- wherein the surgical instrument has a guide that is oriented relative to the patient-specific surface based on information derived from the second image data set.
Dependencies are inferred from the claim text.