Obtaining medical diagnostic measurements

• US 9,585,602 B1
• Filed: 10/07/2014
• Issued: 03/07/2017
• Est. Priority Date: 10/07/2013
• Status: Active Grant

• Current Assignee: Globus Medical, Inc.
• Original Assignee: Intellirod Spine Inc.
• Inventors: Navarro, Richard R., Wilder, Steven E.
• Primary Examiner(s): HENSON, DEVIN B
• Application Number:
  US14/508,506
• Time in Patent Office: 882 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/1071 measuring angles, e.g. using goniometers A61B5/1123 takes precedence
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/1116 Determining posture transitions
• CPC Class Codes: A61B 5/4528 Joints A61B5/4533, A61B5/4538 take precedence
• CPC Class Codes: A61B 5/684 Indicating the position of the sensor on the body
• CPC Class Codes: A61B 5/6843 Monitoring or controlling sensor contact pressure
• CPC Class Codes: A61B 5/6844 Monitoring or controlling distance between sensor and tissue
• CPC Class Codes: A61B 5/7221 Determining signal validity, reliability or quality A61B5/7207 and A61B5/7217 take precedence

Abstract

Systems, methods, computer-readable media (e.g., transitory and non-transitory) and apparatus are described herein for obtaining medical diagnostic measurements that are accurate and/or consistent over time.

Claims

1. An apparatus for obtaining consistent medical diagnostic measurements, comprising:

a housing that is configured to be secured to or held against a patient;

memory to store one or more measured orientations of the housing;

a sensor configured to detect an orientation of the housing; and

a controller operably coupled to the sensor and the memory and configured to;

receive, from the sensor, a measured orientation of the housing;

compare the measured orientation of the housing to a previously measured orientation stored in the memory in association with a previous reading from a strain sensor associated with the patient; and

provide audible or visible output in response to a determination, based on the comparison, that the measured orientation is within a predetermined range of the previously measured orientation.

2. The apparatus of claim 1, wherein the controller is further configured to record in the memory a measurement received from the strain sensor associated with the patient via a wireless communication interface.

3. The apparatus of claim 2, wherein the controller is further configured to record the measurement automatically in response to the determination, based on the comparison, that the measured orientation is within the predetermined range of the previously measured orientation.

4. The apparatus of claim 1, wherein the sensor is a three-axis accelerometer.

5. The apparatus of claim 1, wherein the controller is activated by a signal generated by the sensor in response to detection of movement by the sensor.

6. The apparatus of claim 1, wherein the controller is further configured to record, in the memory, data indicative of a plurality of measured orientations provided by an accelerometer over a time interval.

7. The apparatus of claim 1, wherein the controller is further configured to provide different audible or visible output to instruct the patient to move a body segment of the patient in response to another determination, based on the comparison, that the measured orientation is not within a predetermined range of the previously measured orientation.

8. The apparatus of claim 7, wherein the different audible or visible output comprises a sound that changes in frequency as the housing approaches the previously measured orientation.

9. The apparatus of claim 1, further comprising an output interface operably coupled with the controller, wherein the audible or visible output is rendered using the output interface.

10. The apparatus of claim 1, wherein the controller is further configured to transmit, to a remote computing device in response to the determination that the measured orientation is within the predetermined range of the previously measured orientation, a signal that causes the remote computing device to operate the strain sensor to take a new reading from the patient.