Apparatus and Methods for Using an Electromagnetic Transponder in Orthopedic Procedures
First Claim
1. An electromagnetic marker for use in orthopedic procedures, comprising:
- a template of known mechanical dimensions temporarily used during surgery; and
a marker fixed to the template in a substantially fixed relationship.
2 Assignments
0 Petitions
Accused Products
Abstract
Electromagnetic transponders as markers are used to localize and guide orthopedic procedures including: knee replacement, hip replacement, shoulder replacement, damaged bone reconstruction, and spine surgery, and more particularly, to guide orthopedic surgical navigation and alignment techniques and instruments. For example, the marker could further be used in any number of guides or templates that attach to the bony anatomy, such as a surgical guide, cutting guide, cutting jig, resection block and/or resurfacing guide. Further, the marker could be incorporated into an existing intramedullary guide rod for a femur and an extramedullary guide rod for a tibia in a knee replacement surgery; or into an external surgical guide system, or the marker could eliminate the need for an external template altogether. According to yet another anticipated use of the tracking system, the marker could be used in conjunction with or replace an optical alignment system.
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Citations
37 Claims
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1. An electromagnetic marker for use in orthopedic procedures, comprising:
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a template of known mechanical dimensions temporarily used during surgery; and a marker fixed to the template in a substantially fixed relationship. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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2. An electromagnetic marker for use in orthopedic procedures, comprising:
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a prosthetic device configured for implantation in a patient; and a marker fixed to the prosthetic device in a substantially fixed relationship. - View Dependent Claims (14, 15)
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3. An electromagnetic marker for use in orthopedic procedures, comprising:
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a bone screw or similar device; and a marker fixed to the bone screw or similar device in a substantially fixed relationship.
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16. A system for localizing and/or tracking a device contained in a bony anatomy of a patient, comprising:
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a transponder affixed to the bone of a patient, wherein the transponder has a circuit configured to be energized by a wirelessly transmitted pulsed magnetic field and to wirelessly transmit a pulsed magnetic location signal in response to the pulsed magnetic field; an alignment device for aligning the bone of a patient during localizing and/or tracking of the transponder; and an excitation source comprising an energy storage device, a source coil, and a switching network coupled to the energy storage device and the source coil, the source coil being configured to wirelessly transmit the pulsed magnetic field to energize the transponder, and the switching network being configured to alternately transfer (a) stored energy from the energy storage device to the source coil and (b) energy in the source coil back to the energy storage device. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A system for tracking a body contained in an implanted prosthesis of a human, comprising:
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a prosthesis configured to be received in a cavity of a human and a magnetic transponder contained in or on the body, wherein the transponder has a circuit configured to be energized by a wirelessly transmitted pulsed magnetic field and to wirelessly transmit a pulsed magnetic location signal in response to the pulsed magnetic field; and a sensor assembly comprising a support member and a plurality of field sensors carried by the support member configured to sense the pulsed magnetic location signal from the transponder. - View Dependent Claims (25, 26, 27)
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28. A method for using implanted an electromagnetic transponder to localize bone components, comprising:
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implanting one or more electromagnetic transponder pre-operatively; localizing bone components using one or more electromagnetic transponders pre-operatively; and localizing bone components using one or more electromagnetic transponders during surgery electromagnetically. - View Dependent Claims (29, 32, 33, 34, 35, 36, 37)
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30. A method for using implanted an electromagnetic transponder to localize a prosthesis relative to bony anatomy during surgery, comprising:
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localizing bone components using one or more electromagnetic transponders pre-operatively; and localizing bone components using one or more electromagnetic transponders during surgery.
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31. A method for using an electromagnetic transponder to localize a cutting guide during surgery, comprising:
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localizing the cutting guide using one or more electromagnetic transponders pre-operatively; and localizing the cutting guide using one or more electromagnetic transponders during surgery electromagnetically.
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Specification