Prosthesis installation systems and methods

• US 10,729,559 B2
• Filed: 07/31/2018
• Issued: 08/04/2020
• Est. Priority Date: 12/29/2013
• Status: Active Grant

• Current Assignee: Kambiz Behzadi
• Original Assignee: Kambiz Behzadi
• Inventors: Behzadi, Kambiz, Leite, Alexandre Carvalho
• Primary Examiner(s): Yang, Andrew
• Application Number:
  US16/050,662
• Publication Number:
  US 20180333275A1
• Time in Patent Office: 735 Days
• CPC Class Codes: A61B 17/1666 for the acetabulum
• CPC Class Codes: A61F 2/4609 of acetabular cups
• CPC Class Codes: A61F 2002/4632 using computer-controlled surgery, e.g. robotic surgery
• CPC Class Codes: A61F 2002/4666 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61F 2002/4668 for measuring angles
• CPC Class Codes: A61F 2002/4681 by applying mechanical shocks, e.g. by hammering
• CPC Class Codes: A61F 2002/4694 pneumatic

Abstract

A system and method for allowing any surgeon, including those surgeons who perform a fewer number of a replacement procedure as compared to a more experienced surgeon who performs a greater number of procedures, to provide an improved likelihood of a favorable outcome approaching, if not exceeding, a likelihood of a favorable outcome as performed by a very experienced surgeon with the replacement procedure.

Claims

1. An apparatus for inserting an implant into a prepared location in a live bone of a patient at a desired insertion depth at a desired relative alignment wherein non-vibratory insertion forces for inserting the prosthesis to the desired insertion depth are in a first range, comprising:

means for vibrating the implant using a tool to produce a vibrating implant having a predetermined vibration pattern including an oscillation;

means for inserting the vibrating implant into the prepared location to within a first predetermined threshold of the desired insertion depth using vibratory insertion forces in a second range, said second range including a set of values less than a lowest value of the first range; and

means for aligning the vibrating implant to within a second threshold of the desired relative alignment using a direct view real-time alignment system mechanically coupled to said tool.

2. An apparatus for installing an acetabular cup into a prepared socket in a pelvic bone, the acetabular cup including an outer shell having a sidewall defining an inner cavity and an opening with the sidewall having a periphery around the opening and with the acetabular cup having a desired installation depth relative to the bone, a desired abduction angle relative to the bone, and a desired anteversion angle relative to the bone, comprising:

a prosthetic tool including an oscillation engine configured to generate an original series of pulses wherein said prosthetic tool is coupled to the acetabular cup, wherein said original series of pulses are communicated to the acetabular cup and configured to produce, in cooperation with a structure of said prosthetic tool, a communicated series of pulses, wherein said communicated series of pulses are configured to produce a vibrating acetabular cup having a predetermined vibration pattern, and wherein said vibrating acetabular cup is configured for an insertion, responsive to said predetermined vibration pattern, into the prepared socket within a first predetermined threshold of the installation depth with about the desired abduction angle and about the desired anteversion angle; and

a real-time alignment system coupled to said prosthetic tool to produce a real-time indication of an installed alignment for the acetabular cup at a desired alignment with respect to the pelvic bone.

3. The apparatus of claim 2 wherein said real-time alignment system includes a calibration orientation system providing said installed alignment with an absolute alignment of said prosthetic tool to the prepared bone.

4. The apparatus of claim 3 wherein said calibration orientation system includes a first calibration system orienting the prepared bone to a reference frame and wherein said calibration orientation system includes a second calibration system orienting the acetabular cup and said prosthetic tool to said reference frame.

5. The apparatus of claim 4 wherein said reference frame includes an operating room where said installation of the acetabular cup into the prepared bone occurs.

6. The apparatus of claim 2 wherein said structure includes a pulse transfer assembly configured to produce said communicated series of pulses derived from said original series of pulses.

7. The apparatus of claim 2 wherein said real-time alignment system includes a set of sensors including one or more gyrometers, one or more magnenometers, and one or more accelerometers.

8. The apparatus of claim 2 wherein said predetermined vibration pattern is configured to produce, during said installation, a float interaction at an interface between the acetabular cup and the prepared socket.

9. An apparatus for installing an acetabular cup into a prepared socket in a pelvic bone, the acetabular cup including an outer shell having a sidewall defining an inner cavity and an opening with the sidewall having a periphery around the opening and with the acetabular cup having a desired installation depth relative to the bone, a desired abduction angle relative to the bone, and a desired anteversion angle relative to the bone, comprising:

means for generating an original series of pulses from an oscillation engine included in a prosthetic tool;

means for communicating said original series of pulses to the acetabular cup producing a communicated series of pulses at said acetabular cup;

means for vibrating, responsive to said communicated series of pulses, the acetabular cup to produce a vibrating acetabular cup having a predetermined vibration pattern;

means for inserting the vibrating acetabular cup into the prepared socket within a first predefined threshold of the installation depth with the desired abduction angle and the desired anteversion angle; and

means for monitoring directly a real-time alignment system coupled mechanically to said prosthetic tool to produce an installed alignment for the acetabular cup at a desired alignment with respect to the pelvic bone.

10. An apparatus for inserting an implant into a prepared location in a live bone of a patient at a desired insertion depth at a desired relative alignment wherein non-vibratory insertion forces for inserting the prosthesis to the desired insertion depth are in a first range, comprising:

a tool configured to vibrate the implant to produce a vibrating implant having a predetermined vibration pattern including an oscillation, said tool further configured to insert the vibrating implant into the prepared location to within a first predetermined threshold of the desired insertion depth using vibratory insertion forces in a second range, said second range including a set of values less than a lowest value of the first range; and

a direct view real-time alignment system, mechanically coupled to said tool and configured to provide an indication of an alignment of the vibrating implant to within a second threshold of the desired relative alignment.

11. The apparatus of claim 10 wherein said second range is less than first range.

12. The apparatus of claim 10 wherein the implant includes an acetabular cup prosthesis.

13. The apparatus of claim 10 wherein said vibrating implant includes a vibration having an ultrasonic oscillation.