Prosthetic Component For Monitoring Joint Health

• US 20140206952A1
• Filed: 03/11/2014
• Published: 07/24/2014
• Est. Priority Date: 06/30/2009
• Status: Active Grant

• Current Assignee: Howmedica Osteonics Corp. (Stryker Corporation)
• Original Assignee: OrthoSensor, Inc (Stryker Corporation)
• Inventors: Stein, Marc, Chase, Andrew, Keggi, John, Bonnheim, Noah, Burkhard, Natalie, Henson, Philip
• Granted Patent: US 9,345,449 B2
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 5/0082 adapted for particular medical purposes
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/1032 Determining colour for diagnostic purposes measuring colour in general G01J3/46
• CPC Class Codes: A61B 5/14539 for measuring pH
• CPC Class Codes: A61B 5/4509 Bone density determination
• CPC Class Codes: A61B 5/4528 Joints A61B5/4533, A61B5/4538 take precedence
• CPC Class Codes: A61B 5/4851 Prosthesis assessment or monitoring
• CPC Class Codes: A61B 5/6846 specially adapted to be brought in contact with an internal body part, i.e. invasive
• CPC Class Codes: A61B 8/0875 for diagnosis of bone A61B5/4504 takes precedence
• CPC Class Codes: A61B 8/58 Testing, adjusting or calibrating the diagnostic device

Abstract

A prosthetic component suitable for long-term implantation is provided. The prosthetic component includes electronic circuitry and sensors to measure a parameter of the muscular-skeletal system. The prosthetic component comprises a first structure having at least one support surface, a second structure having at least one feature configured to couple to bone, and at least one sensor. The electronic circuitry and sensors are hermetically sealed within the prosthetic component. The prosthetic component includes at least on transmissive region. The transmissive region can be located in a region that has exposure to a region outside the joint. The transmissive region can comprise glass. One or more sensors can be used to monitor synovial fluid in proximity to the joint to determine joint health. The transmissive region can be used to support communication between the electronic circuitry and remote system.

Claims

1. An orthopedic system comprising:

a sensor;

electronic circuitry coupled to the sensor where the electronic circuitry includes a transmitter and where the transmitter is configured to transmit measurement data; and

a light source configured to illuminate a region in proximity to the muscular-skeletal system where the electronic circuitry is in a housing and where the housing is coupled to the muscular-skeletal system.

2. The orthopedic system of claim 1 further including a remote system configured to receive and process the measurement data.

3. The orthopedic system of claim 1 where the housing has a transmissive region.

4. The orthopedic system of claim 3 where the transmissive region comprises glass.

5. The orthopedic system of claim 3 where the transmissive region comprises plastic.

6. The orthopedic system of claim 3 where the transmitter is configured to transmit through the transmissive region.

7. The orthopedic system of claim 3 where the sensor is an optical sensor and where the optical sensor is configured to detect through the transmissive region.

8. The orthopedic system of claim 1 where the sensor is an optical sensor and where the optical sensor measures color or turbidity.

9. The orthopedic system of claim 1 where the sensor is a temperature sensor or a pH sensor.

10. An orthopedic system comprising:

a sensor;

electronic circuitry coupled to the sensor where the electronic circuitry includes a transmitter and where the transmitter is configured to transmit measurement data; and

a light emitting diode configured to illuminate a region in proximity to the muscular-skeletal system where the electronic circuitry is in a housing and where the housing is coupled to the muscular-skeletal system.

11. The orthopedic system of claim 10 where the housing has a transmissive region.

12. The orthopedic system of claim 11 where the transmissive region comprises glass.

13. The orthopedic system of claim 11 where the transmissive region comprises plastic.

14. The orthopedic system of claim 11 where the transmitter is configured to transmit through the transmissive region.

15. The orthopedic system of claim 11 where the sensor is an optical sensor and where the optical sensor is configured to detect through the transmissive region.

16. The orthopedic system of claim 15 further including a pH or temperature sensor.

17. The orthopedic system of claim 15 where the optical sensor is configured to detect color or turbidity.

18. An orthopedic system comprising:

a sensor;

electronic circuitry coupled to the sensor where the electronic circuitry includes a transmitter and where the transmitter is configured to transmit measurement data;

a light source configured to illuminate a region in proximity to the muscular-skeletal system where the electronic circuitry is in a prosthetic component configured to couple to the muscular-skeletal system.

19. The orthopedic system of claim 18 further including a remote system configured to receive and process the measurement data.

20. The orthopedic system of claim 18 where the prosthetic component has a transmissive region and where the sensor is configured to detect through the transmissive region.