Use of micro- and miniature position sensing devices for use in TKA and THA

• US 9,532,730 B2
• Filed: 07/15/2014
• Issued: 01/03/2017
• Est. Priority Date: 04/08/2003
• Status: Active Grant

• Current Assignee: Zimmer Incorporated (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Zimmer Incorporated (Zimmer Biomet Holdings, Inc.)
• Inventors: Wasielewski, Ray C.
• Primary Examiner(s): Philogene, Pedro
• Assistant Examiner(s): Comstock, David C
• Application Number:
  US14/331,781
• Publication Number:
  US 20140330112A1
• Time in Patent Office: 903 Days
• Field of Search: 606/53, 606/86.R, 606/87, 606/96, 606/102, 606/130, 623/16.11, 623/22.11, 623/22.12, 623/23.16, 623/914, 600/301, 600/424, 600/587, 600/594, 600/595, 128/903
• US Class Current: 1/1
• CPC Class Codes: A61B 17/00 Surgical instruments, devices or methods, e.g. tourniquets A61B18/00 takes precedence; contraceptive devices, pessaries, or applicators therefor A61F6/00; eye surgery A61F9/007; ear surgery A61F11/00
• CPC Class Codes: A61B 17/155 Cutting femur
• CPC Class Codes: A61B 17/1707 using electromagnetic effects, e.g. with magnet and external sensors
• CPC Class Codes: A61B 17/1717 for applying intramedullary nails or pins
• CPC Class Codes: A61B 17/1746 for the acetabulum
• CPC Class Codes: A61B 17/1764 for the knee
• CPC Class Codes: A61B 17/72 Intramedullary pins, nails or other devices A61B17/744 takes precedence
• CPC Class Codes: A61B 17/86 Pins or screws or threaded wires; nuts therefor A61B17/72 take precedence
• CPC Class Codes: A61B 2034/102 Modelling of surgical devices, implants or prosthesis
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2034/2072 Reference field transducer attached to an instrument or patient
• CPC Class Codes: A61B 2090/062 penetration depth
• CPC Class Codes: A61B 2090/365 augmented reality, i.e. correlating a live optical image with another image
• CPC Class Codes: A61B 2090/3958 emitting a signal
• CPC Class Codes: A61B 2090/397 electromagnetic other than visible, e.g. microwave
• CPC Class Codes: A61B 2090/3975 active
• 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 5/061 Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body A61B1/00158 takes precedence
• CPC Class Codes: A61B 5/062 using magnetic field
• CPC Class Codes: A61B 5/067 using accelerometers or gyroscopes
• CPC Class Codes: A61F 2/30723 : Plugs or restrictors for sealing a cement-receiving space tools for inserting plugs A61F2/4614; sealing collars for use during cementing A61B17/8808
• CPC Class Codes: A61F 2/36 : Femoral heads ; Femoral endoprostheses
• CPC Class Codes: A61F 2/367 : Proximal or metaphyseal parts of shafts trochanteric devices connected to said proximal parts A61F2/30739
• CPC Class Codes: A61F 2/3672 : Intermediate parts of shafts
• CPC Class Codes: A61F 2/38 : for elbows or knees
• CPC Class Codes: A61F 2/3859 : Femoral components
• CPC Class Codes: A61F 2/389 : Tibial components A61F2/3868 takes precedence
• CPC Class Codes: A61F 2/4603 : for insertion or extraction of endoprosthetic joints or of accessories thereof
• 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 2/4684 : Trial or dummy prostheses
• CPC Class Codes: A61F 2002/3067 : for data transfer
• CPC Class Codes: A61F 2002/3625 : Necks
• CPC Class Codes: A61F 2002/3631 : with an integral complete or partial peripheral collar or bearing shoulder at its base
• CPC Class Codes: A61F 2002/4619 : for extraction
• 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 2002/4696 : optical
• CPC Class Codes: A61F 2250/0002 : for data transfer

Abstract

A system for assisting in a surgical process, comprising: (a) a surgical device taken from a group consisting of a surgical tool and a surgical implant; (b) a positional sensor carried by the surgical device, the positional sensor including a wireless transmitter and associated circuitry for transmitting sensor data from the transmitter; and (c) a computer system including a wireless receiver and signal conditioning circuitry and hardware for converting sensor data received by the wireless receiver into at least one of (i) audio feedback of positional information for the surgical device and (ii) visual feedback of positional information for the surgical device.

Claims

1. A system for assisting in a surgical process, comprising:

an orthopedic surgical implant;

at least accelerometer carried by the surgical implant, the accelerometer including a wireless transmitter and associated circuitry for transmitting sensor data from the transmitter; and

a computer system including a wireless receiver and signal conditioning circuitry and hardware for converting sensor data received by the wireless receiver into at least one of (a) audio feedback of information for the surgical device and (b) visual feedback of information for the surgical device, said information being at least one of inertial forces, shock and vibrations sustained by the surgical implant.

2. The system of claim 1, further comprising a reference sensor carried by a reference object, the reference sensor being operatively coupled to the signal conditioning circuitry and hardware so that reference sensor data is used in converting sensor data into visual feedback of positional information for the surgical implant on a visual display.

3. The system of claim 1, further comprising a reference sensor carried by a reference object, the reference sensor being operatively coupled to the signal conditioning circuitry and hardware so that reference sensor data is used in converting sensor data into at least one of (a) audio feedback of positional information for the surgical implant with respect to the reference object and (b) visual feedback of positional information for the surgical implant with respect to the reference object.

4. The system of claim 3, wherein the reference object is a stem component adapted to be inserted into a canal of a patients elongated bone, and the surgical implant is mounted to the stem component.

5. The system of claim 3, wherein:

the surgical implant is one of a tibial tray prosthetic device and a femoral prosthetic device of a prosthetic knee; and

the reference object is the other one of the tibial tray prosthetic device and the femoral prosthetic device.

6. The system of claim 3, wherein:

the surgical plant is one of a screw cap dome screw and an acetabular cup of a prosthetic hip; and

the reference object is the other one of the screw cap dome screw and the acetabular cup of the prosthetic hip.

7. The system of claim 1, wherein the sensor includes an inclinometer.

8. The system of claim 1, wherein the surgical implant is a tibial tray prosthetic device.

9. The system of claim 1, wherein the surgical implant is an acetabular cup of a prosthetic hip.

10. The system of claim 1, wherein the surgical implant is a femoral broach component.