Implant stability sensor system and method
AssigneeOrthoIQ, LLC
InventorsDonald Eugene Rea, Phillip Ormond Merritt, Sahil Kashyap, Alan Aaron Davidner, Randall Carl Danta, Kimberly Elasky
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Abstract
A system for detecting motion between an implant and a bone that can optionally include: a bone locator means configured to be coupled to the bone, an implant attachment means configured to be coupled to the implant, and a data analysis means. The implant attachment means includes a detection means, and the implant attachment means defines one or more apertures or surfaces for receiving a force from a force inducing means.
Claims20
A system for detecting motion between an implant and a bone, the system comprising:
- a bone locator configured to be coupled to the bone at a location visible to a detector during a surgical procedure;
- and
- an implant attachment configured to be coupled to the implant, wherein:
- the implant attachment comprises the detector, and
- the implant attachment defines one or more apertures or surfaces for receiving a force from a force inducer,
- wherein the detector includes a motion detector that is removably attached to the implant attachment and monitors the implant for movement between the bone locator and the implant when the implant is at rest and when the implant is under force during the surgical procedure.
A computer-implemented method of measuring implant stability, the method comprising:
- receiving, from a motion detector, a first image of a marking pin affixed to a bone to recognize a position of the marking pin in a field of view of the camera when the implant is at rest,
- wherein the motion detector is removably affixed to an implant during a surgical procedure;
- determining a first location of the marking pin in the first image of the field of view of the camera;
- receiving, from the motion detector, a second image of the marking pin affixed to the bone when the implant is under force;
- determining a second location of the marking pin in the second image;
- determining a relative motion between the implant and the bone based on a difference between the second location and the first location;
- and
- outputting an indication of the implant stability based on the determined relative motion between the implant and the bone.
Dependencies are inferred from the claim text.