Hip surgery systems and methods

• US 10,321,852 B2
• Filed: 02/20/2018
• Issued: 06/18/2019
• Est. Priority Date: 09/10/2008
• Status: Active Grant

• Current Assignee: Orthalign, Inc.
• Original Assignee: Orthalign, Inc.
• Inventors: Borja, Santiago P.
• Primary Examiner(s): Beccia, Christopher J
• Application Number:
  US15/899,790
• Publication Number:
  US 20180303379A1
• Time in Patent Office: 483 Days
• CPC Class Codes: A61B 2090/067 for measuring angles
• CPC Class Codes: A61B 2090/0809 Indication of cracks or breakages
• CPC Class Codes: A61B 5/1072 measuring distances on the body, e.g. measuring length, height or thickness A61B5/1076 takes precedence
• CPC Class Codes: A61B 5/1077 Measuring of profiles
• CPC Class Codes: A61B 5/1079 using optical or photographic means
• CPC Class Codes: A61F 2/32 for the hip
• CPC Class Codes: A61F 2/4607 of hip femoral endoprostheses
• CPC Class Codes: A61F 2/4609 of acetabular cups
• CPC Class Codes: A61F 2/4657 Measuring instruments used for implanting artificial joints for surgical instruments A61B90/06
• CPC Class Codes: A61F 2002/4658 for measuring dimensions, e.g. length
• CPC Class Codes: A61F 2002/4668 for measuring angles
• CPC Class Codes: A61F 2002/4687 Mechanical guides for implantation instruments

Abstract

Orthopedic systems and methods are provided for use in preparing joints for implants. Specifically, hip preparation systems and methods are disclosed which can include a surgical orientation device. The hip preparation systems and methods can be used, for example, to orient the hip during the procedure, determine the orientation of an anatomical plane or planes, and orient a prosthetic component or components.

Claims

1. A method for assisting a surgeon, comprising:

providing an assembly, the assembly comprising an orientation device and a visible alignment indicator;

emitting light from the visible alignment indicator to project a point, a plane, or a cross-hair onto a target, anatomical feature, or landmark;

marking at least a portion of the incidence of light to establish a reference rotational position;

determining changes in the orientation of the orientation device relative to gravitational axis; and

replacing the joint by inserting a prosthetic component, wherein the orientation device provides an indication of the angle of insertion.

2. The method of claim 1, wherein the visible alignment indicator comprises a laser.

3. The method of claim 1, wherein the light facilitates alignment along two perpendicular axes.

4. The method of claim 1, wherein the light facilitates returning an object to a specific rotational orientation.

5. The method of claim 1, wherein the light facilitates constraining a degree of freedom of an instrument relative to anatomy or one instrument relative to another.

6. The method of claim 1, wherein the light establishes a reference rotation about a vertical axis.

7. The method of claim 1, wherein the light establishes a direction for a leg length measurement.

8. The method of claim 1, wherein the light establishes a reference rotational position about a vertical line.

9. The method of claim 1, further comprising emitting light to reference the marking of the incidence of light.

21. The method of claim 1, further comprising returning an instrument to a specific rotational orientation using the visible alignment indicator.

22. The method of claim 1, further comprising referencing the mark made earlier to control the rotation of the orientation device.

10. A method for assisting a surgeon, comprising:

providing an assembly, the assembly comprising an orientation device and a visible alignment indicator;

emitting at least a line of light from the visible alignment indicator;

marking along a portion of the line of light to establish a reference rotational position,

registering the orientation device while the orientation device is held parallel to the operating table;

replacing the joint by inserting a prosthetic component; and

orienting the prosthetic component at a specified angle or orientation utilizing the orientation device.

11. The method of claim 10, wherein the visible alignment indicator comprises a laser.

12. The method of claim 10, wherein the light facilitates alignment along two perpendicular axes.

13. The method of claim 10, wherein the light facilitates returning an object to a specific rotational orientation.

14. The method of claim 10, wherein the orientation device detects changes in angular position from a horizontal plane.

15. The method of claim 10, wherein the orientation device detects changes in angular position from a vertical plane.

16. The method of claim 10, wherein the orientation device provides inertial navigation.

17. A method for assisting a surgeon, comprising:

providing an assembly, the assembly comprising an orientation device and an visible alignment indicator;

emitting light from the visible alignment indicator to project a point, a plane, or a cross-hair onto a target, anatomical feature, or landmark;

marking at least a portion of the incidence of light on the target, anatomical feature, or landmark, to establish a reference rotational position;

measuring at least one of orientation and position of the orientation device; and

placing a prosthetic component at a selected position or orientation utilizing the orientation device.

18. The method of claim 17, wherein the visible alignment indicator comprises a laser.

19. The method of claim 17, wherein the light facilitates alignment along two perpendicular axes.

20. The method of claim 17, wherein the light facilitates returning an object to a specific rotational orientation.