Method for generating one or more strain measurements associated with a biological surface

Patent metadata

Field	Value
Publication number	US-12036042-B2
Application number	US-202318108808-A
Country	US
Kind code	B2
Filing date	Feb 13, 2023
Priority date	Oct 13, 2017
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

A sensor apparatus includes at least one substrate layer of an elastically deformable material, the substrate layer extending longitudinally between spaced apart ends thereof. A conductive layer is attached to and extends longitudinally between the spaced apart ends of the at least one substrate layer. The conductive layer includes an electrically conductive material adapted to form a strain gauge having an electrical resistance that varies based on deformation of the conductive layer in at least one direction.

First claim

What is claimed is:

1. A method comprising the steps of:
advancing a sensor apparatus into a patient, the sensor apparatus comprising:
at least one substrate layer of an elastically deformable material, the substrate layer extending longitudinally between spaced apart ends thereof;
a conductive layer disposed over the at least one substrate layer, the conductive layer including an electrically conductive material adapted to form a strain gauge having anistropic or isotropic compliance; and
a measurement system that includes a wireless communication interface;

providing a remote device in communication with the wireless communication interface, the wireless communication interface being adapted to transmit measurement data wirelessly from the measurement system to the remote device;
mounting the sensor apparatus to a biological surface of the subject; and
generating, by the sensor apparatus, one or more strain measurements associated with the biological surface.

2. The method of claim 1 wherein the biological surface is a vessel wall.

3. The method of claim 1 , further comprising the step of monitoring a condition internal to the biological surface.

4. The method of claim 3 wherein the monitoring is performed by the measurement system of the sensor apparatus.

5. The method of claim 4 wherein an alert is generated by the sensor apparatus in response to a dysfunction detected by the measurement system.

6. The method of claim 5 , further comprising the step of communicating the alert to the patient and/or one or more caregivers.

7. The method of claim 6 , further comprising the step of performing an intervention based on the generated alert.

8. The method of claim 1 wherein the remote device is one of a smart phone, a server, or a wireless receiver.

Assignees

• Univ Case Western Reserve
• The United States As Represented By The Dept Of Veterans Affairs

Inventors

• Majerus Steve J A
• Dunning Jeremy
• Bogie Katherine M
• Potkay Joseph A

Classifications

• G01L9/06

  of piezo-resistive devices · CPC title

• G01L9/0052

  of piezoresistive elements (circuits therefor G01L9/06) · CPC title

• A61B2562/12

  Manufacturing methods specially adapted for producing sensors for in-vivo measurements · CPC title

• A61B5/026

  Measuring blood flow {(A61B3/1233, A61B3/1241 take precedence)} · CPC title

• A61B5/6876

  Blood vessel · CPC title