Method of providing feedback to an orthopedic alignment system

Patent metadata

Field	Value
Publication number	US-9259172-B2
Application number	US-201314027130-A
Country	US
Kind code	B2
Filing date	Sep 13, 2013
Priority date	Mar 18, 2013
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

A method of providing feedback to a user of an orthopedic alignment system, which displays: a portion of an orthopedic system; a parameter of the orthopedic system; a portion of an orthopedic insert in the display; and a parameter of the orthopedic insert. Where the method detects movement of the orthopedic system, and moves the displayed portion of the orthopedic system in response to the movement of the orthopedic system. Where the method additionally detects changes of the parameter of the orthopedic insert and of the parameter of the orthopedic system during movement of the orthopedic system, and displays the changes of the parameter of the orthopedic insert and the parameter of the orthopedic system.

First claim

What is claimed is:

1. A method of providing feedback an orthopedic alignment system coupled to display comprising:
tracking movement of a prosthetic component wherein a tracking system is coupled to the prosthetic component;
transmitting tracking data to a computer wherein the computer is coupled to a display;
displaying a needle point graphic on the display wherein the computer is configured to receive the measurement data and wherein the needle point graphic is configured to move as the prosthetic component moves; and
measuring a parameter with the tracking data wherein the computer is configured to calculate the parameter from the measurement data.

2. The method according to claim 1 , where the parameter is at least one of a CP Rotation, A-P slope, flexion angle, tibial rotation, alignment, or a tibia angle.

3. The method according to claim 1 , where the prosthetic component is a component of a knee joint, where the needle point graphic is configured to track movement of the knee joint, and where movement of the knee joint is kept within a tracking grid of the needle point graphic.

4. The method according to claim 1 , further including rotating the prosthetic component in an arc wherein a range of the arc is less than or equal to plus or minus 45 degrees and wherein the tracking system has 15 bit or greater accuracy.

5. The method according to claim 4 , where the needle point graphic is configured to change color in response to movement where the color corresponds to a measurement range.

6. The method according to claim 1 , further including:
measuring a load applied to the prosthetic component wherein one or more load sensors couple to the prosthetic component;
transmitting load data from the prosthetic component to the computer wherein the computer is configured to calculate a load magnitude from the load data; and
displaying the prosthetic component on the display wherein a load is displayed within a range on the display.

7. The method according to claim 6 further including:
measuring a position of load wherein the computer is configured to calculate a position of applied load on the prosthetic component from the load data; and
showing a position of applied load on the prosthetic component on the display.

8. The method according to claim 1 further including: where the tracking system is in the prosthetic component.

9. The method according to claim 1 further including:
rotating the prosthetic component wherein rotation of the prosthetic component changes a contact point to a second prosthetic component;
measuring rotation from a reference position wherein the computer calculates rotation of the prosthetic component; and
displaying a rotation value of the prosthetic component from the reference position on the display.

10. A method of providing feedback an orthopedic alignment system coupled to display comprising:
tracking movement of a prosthetic component wherein a tracking system is coupled to the prosthetic component;
transmitting tracking data to a computer wherein the computer is coupled to a display;
displaying a needle point graphic within a tracking grid on the display wherein the computer is configured to receive the measurement data, wherein the needle point graphic is configured to move as the prosthetic component moves and wherein movement of the prosthetic component is kept within a range of the tracking grid;
measuring a parameter with the tracking data wherein the computer is configured to calculate the parameter from the measurement data.

11. The method of claim 10 further comprising:
rotating the prosthetic component to generate tracking data.

12. The method according to claim 10 , further comprising:
transmitting tracking data as the prosthetic component is rotated;
calculating an alignment of value of the prosthetic component relative to the muscular-skeletal system from the tracking data wherein the computer is configured to calculate the alignment value; and
displaying the alignment value on the display.

13. The method according to claim 10 , further comprising:
measuring position, location, and rotation with the tracking system wherein the tracking data from the tracking system has 15 bit or greater accuracy.

14. The method according to claim 10 , where the needle point graphic is configured to change color in response to movement where the color corresponds to a measurement range.

15. A method of providing feedback an orthopedic alignment system coupled to display comprising:
tracking movement of an insert in a knee joint wherein a tracking system is coupled to the insert;
transmitting tracking data to a computer wherein the computer is coupled to a display;
displaying a needle point graphic within a tracking grid on the display wherein the computer is configured to receive the measurement data, wherein the needle point graphic is configured to move as the insert moves and wherein movement of insert is kept within a range of the tracking grid;
measuring a parameter with the tracking data wherein the computer is configured to calculate the parameter from the measurement data.

16. A method according to claim 15 further comprising:
transmitting tracking data as the insert is moved;
calculating an alignment of value of the insert relative to the muscular-skeletal system from the tracking data wherein the computer is configured to calculate the alignment value; and
displaying the alignment value on the display.

17. A method according to claim 15 further comprising:
measuring position, location, and rotation with the tracking system wherein the tracking data from the tracking system has 15 bit or greater accuracy.

18. A method according to claim 15 ,
where the needle point graphic is configured to change color in response to movement where the color corresponds to a measurement range.

Assignees

• Orthosensor Inc

Inventors

• Stein Marc
• Roche Martin

Classifications

• A61F2/38

  for elbows or knees · CPC title

• A61B5/4528

  Joints (A61B5/4533, A61B5/4538 take precedence) · CPC title

• A61F2/4657

  Measuring instruments used for implanting artificial joints (for surgical instruments A61B90/06) · CPC title

• A61B5/4585

  Evaluating the knee · CPC title

• A61B2034/105

  Modelling of the patient, e.g. for ligaments or bones · CPC title