Computer assisted intramedullary rod surgery system with enhanced features

• US 20050251113A1
• Filed: 07/18/2005
• Published: 11/10/2005
• Est. Priority Date: 11/17/2000
• Status: Abandoned Application

• Current Assignee: Thomas C. Kienzle III
• Original Assignee: Thomas C. Kienzle III
• Inventors: Kienzle, Thomas C. III
• Application Number:
  US11/183,717
• Publication Number:
  US 20050251113A1
• Time in Patent Office: Days
• US Class Current: 606/1
• CPC Class Codes: A61B 17/1703 using imaging means, e.g. by X-rays
• CPC Class Codes: A61B 17/1725 for applying transverse screws or pins through intramedullary nails or pins
• CPC Class Codes: A61B 2034/107 Visualisation of planned trajectories or target regions
• CPC Class Codes: A61B 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2034/2065 Tracking using image or pattern recognition
• CPC Class Codes: A61B 2090/376 using X-rays, e.g. fluoroscopy
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 34/25 User interfaces for surgical systems

Abstract

A computer assisted surgery system for positioning a surgical implant within a patient'"'"'s body that includes a localizing device configured to measure a pose of the surgical implant, an imaging device adapted for acquiring images of the surgical implant, and a computer adapted for calculating an adjusted pose for the surgical implant based on information developed from the images so as to compensate for deformation of the surgical implant or inaccuracies in localization.

Claims

1. A computer assisted surgery system for positioning a surgical implant within a patient'"'"'s body, said system comprising:

a localizing device configured to measure a pose of the surgical implant;

an imaging device adapted for acquiring images of the surgical implant; and

a computer adapted for calculating an adjusted pose for the surgical implant based on information developed from the images so as to compensate for deformation of the surgical implant or inaccuracies in localization.

2. The system of claim 1, further comprising a display adapted for displaying a graphic representation of the surgical implant based on the adjusted pose of the surgical implant.

3. The system of claim 1, further comprising a surgical instrument defining a trajectory and a display device, and wherein the localizing device is further operative for measuring the pose of the surgical instrument and the display device is adapted to display a graphic representation of the trajectory relative to a graphic representation of the surgical implant, based on the measured pose of the surgical instrument and the adjusted pose of the implant.

4. The system of claim 1, wherein the imaging device is an X-ray imaging device.

5. The system of claim 1, wherein the information developed from the images is an adjustment to be applied to the pose of the surgical implant, said adjustment developed through image processing techniques applied to the images of the implant.

6. The system of claim 1, wherein the localizing device is an optical localizing device.

7. A method for positioning a surgical implant within a patient'"'"'s body, wherein the surgical implant has one or more holes, the method comprising:

calculating an adjusted pose for the surgical implant based on information developed from acquired images of the surgical implant so as to compensate for deformation of the surgical implant or inaccuracies in localization.

8. The method of claim 7, further comprising displaying a graphic representation of the surgical implant based on the adjusted pose of the surgical implant.

9. The method of claim 7, further comprising:

measuring a pose of a surgical instrument; and

displaying a graphic representation of a trajectory of the surgical instrument relative to a graphic representation of the surgical implant, based on the measured pose of the surgical instrument and the adjusted pose of the implant.

10. A computer program product for positioning a surgical implant within a patient'"'"'s body, wherein the surgical implant has one or more holes, said computer program product comprising:

instructions for calculating an adjusted pose for the surgical implant based on information developed from acquired images of the surgical implant so as to compensate for deformation of the surgical implant or inaccuracies in localization.

11. The computer program product of claim 10, further comprising instructions for displaying a graphic representation of the surgical implant based on the adjusted pose of the surgical implant.

12. The computer program product of claim 10, further comprising instructions for measuring a pose of a surgical instrument;

and instructions for displaying a graphic representation of a trajectory of the surgical instrument relative to a graphic representation of the surgical implant, based on the measured pose of the surgical instrument and the adjusted pose of the implant.