US 2023/0010852 A1 · System and Method for Revision Hip Surgery

Abstract

A system and method for identifying and digitally displaying a femoral implant during hip revision surgery to guide a surgeon in detaching the femoral implant from the femur. Some embodiments include digitally registering a portion of the exposed femoral implant to create a representative point set. The system then digitally overlays a medical image of the implant and/or a 3-dimensional model of the femoral implant. Some embodiments further include a surgical tracking system configured to track a surgical cutting tool. Moreover, the system visually illustrates the cutting path of the surgical tool to convey to the surgeon where the surgeon has already cut and where the surgeon needs to cut in order to fully detach the femoral implant from the bone.

Claims20

Dependent claims

A method for removing a femoral implant from a patient's femur, comprising:

removing a ball component from the femoral implant implanted in a patient's femur;
attaching or digitally registering a coordinate origin marker to a trunnion of the femoral implant;
digitally registering an exposed section of the femoral implant to create a point set representative of an outer surface of the exposed section of the femoral implant;
identifying characteristics of the femoral implant;
retrieving a 3D model of the femoral implant based on the identified characteristics of the femoral implant;
overlaying the 3D model and the representative point set of the femoral implant relative to each other;
tracking a surgical cutting tool relative to the coordinate origin tracking marker using a tracking system;
and
tracking the surgical cutting tool relative to the 3D model;
wherein the tracking system is configured to visually display tracking information to a surgeon.

7 more elements

A system for aiding in the removal of a femoral implant during revision surgery, comprising:

a coordinate origin marker configured to attach to or digitally registering to a trunnion of the femoral implant;
a registration probe configured to digitally registering an exposed section of the femoral implant to create a point set representative of an outer surface of the exposed section of the femoral implant;
a tracking system, the tracking system configured to track a surgical cutting tool relative to the coordinate origin marker;
a computer system including a graphic user interface, wherein the computer system is configured to perform the steps of:
identifying characteristics of the femoral implant;
retrieving a 3D model of the femoral implant based on the identified characteristics of the femoral implant;
overlaying the 3D model and the representative point set of the femoral implant relative to each other;
tracking the surgical cutting tool relative to the 3D model as the surgical cutting tool detaches the femoral implant from the patient's femur;
and
displaying on the graphic user interface real-time tracking data of the surgical cutting tool and the 3D model of the femoral implant.

7 more elements

Dependencies are inferred from the claim text.

System and Method for Revision Hip Surgery

Life of this patent

System and Method for Revision Hip Surgery

Life of this patent

Abstract

Claims20