# US 2021/0275039 A1 · Body vibration analysis systems and methods

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- Number: US 2021/0275039 A1
- Document ID: US20210275039A1
- Status: Published application
- Kind: A1
- Application number: 17/190,277
- Filed: 2021-03-02
- Published: 2021-09-09
- Earliest claimed: 2020-03-04
- Assignees: Cardiac Pacemakers, Inc.
- Applicants: Cardiac Pacemakers, Inc.
- Inventors: Jonathan Bennett Shute; John D. Hatlestad; John H. Tangren
- Web page: https://patentgrep.com/patent/US20210275039A1

## CPC

- A61B 5/0205: Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
- A61B 5/0064: {Body surface scanning}
- A61B 5/02416: {using photoplethysmograph signals, e.g. generated by infrared radiation (A61B5/14552 takes precedence)}
- A61B 5/02427: {Details of sensor}
- A61B 5/0806: {by whole-body plethysmography}
- A61B 5/1102: {Ballistocardiography}
- A61B 5/7285: {for synchronizing or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Embodiments herein relate to body vibration analysis systems and methods. In an embodiment, a body vibration analysis system is included having a first light source configured to illuminate a surface of the body from a first angle with a first set of lighted features and a second light source configured to illuminate a surface of the body from a second angle with a second set of lighted features, wherein the second set of lighted features are optically distinguishable from the first set of lighted features. The system further includes a camera configured to detect light reflected from the surface of the body and a control circuit configured to receive an input from the camera and assess spatial vibration as a function of location on the surface of the body. Other embodiments are also included herein.

## Claims

### Claim 1

A body vibration analysis system comprising:
a first light source configured to illuminate a surface of the body from a first angle with a first set of lighted features;
a second light source configured to illuminate a surface of the body from a second angle with a second set of lighted features, wherein the second set of lighted features are optically distinguishable from the first set of lighted features;
a camera configured to detect light reflected from the surface of the body; and
a control circuit configured to receive an input from the camera and assess spatial vibration as a function of location on the surface of the body.

### Claim 2 (depends on 1)

The body vibration analysis system of claim 1, wherein the first set of lighted features are at least one of a different color than the second set of lighted features, a different shape than the second set of lighted features, or a different intensity than the second set of lighted features.

### Claim 3 (depends on 1)

The body vibration analysis system of claim 1, wherein the control circuit is further configured to generate a body surface map as a function of determined spatial vibration.

### Claim 4 (depends on 1)

The body vibration analysis system of claim 1, wherein the first angle and the second angle intersect at an angle of about 10 to 45 degrees.

### Claim 5 (depends on 1)

The body vibration analysis system of claim 1, wherein the control circuit is further configured to calculate a location for sensing vibrations within a particular frequency range based on the determined spatial vibration as a function of location on the surface of the body.

### Claim 6 (depends on 1)

The body vibration analysis system of claim 1, wherein the control circuit is further configured to calculate a location for implanting a medical device based on the determined spatial vibration as a function of location on the surface of the body.

### Claim 7 (depends on 1)

The body vibration analysis system of claim 1, wherein the control circuit is further configured to diagnose a disease state based on the determined spatial vibration as a function of location on the surface of the body.

### Claim 8 (depends on 1)

The body vibration analysis system of claim 1, wherein the control circuit is further configured to average spatial vibration as a function of location on the surface of the body over a plurality of physiological vibration cycles.

### Claim 9 (depends on 8)

The body vibration analysis system of claim 8, the physiological vibration cycles comprising at least one of cardiac cycles and pulmonary cycles.

### Claim 10 (depends on 1)

The body vibration analysis system of claim 1, further comprising a sensor, wherein the control circuit is further configured to use a signal from the sensor to separate and align spatial vibration data representing different physiological vibration cycles.

### Claim 11 (depends on 10)

The body vibration analysis system of claim 10, the sensor comprising an ECG sensor.

### Claim 12

An implant location calculating system comprising:
a digital image correlation body surface analysis system; and
a control circuit configured to
receive input from the body analysis system including spatial vibration as a function of location on the surface of the body; and
calculate a location for implanting a medical device based on the spatial vibration as a function of location on the surface of the body.

### Claim 13

A method of evaluating body vibrations comprising:
illuminating a surface of a subject's body from a first angle with a first set of lighted features;
illuminating a surface of a subject's body from a second angle with a first set of lighted features;
detecting light reflected from the surface of the subject's body; and
calculating spatial vibration as a function of location on the surface of the subject's body based on the detected light.

### Claim 14 (depends on 13)

The method of claim 13, wherein the first set of lighted features are at least one of a different color than the second set of lighted features, a different shape than the second set of lighted features, and a different intensity than the second set of lighted features.

### Claim 15 (depends on 13)

The method of claim 13, further comprising generating a body surface map as a function of determined spatial vibration.

### Claim 16 (depends on 13)

The method of claim 13, wherein the first angle and the second angle intersect at an angle of about 10 to 45 degrees.

### Claim 17 (depends on 13)

The method of claim 13, further comprising calculating a location for sensing vibrations within a particular frequency range based on the determined spatial vibration as a function of location on the surface of the subject's body.

### Claim 18 (depends on 13)

The method of claim 13, further comprising averaging spatial vibration as a function of location on the surface of the subject's body over a plurality of physiological vibration cycles.

### Claim 19 (depends on 18)

The method of claim 18, the physiological vibration cycles comprising at least one of cardiac cycles and pulmonary cycles.

### Claim 20 (depends on 13)

The method of claim 13, further comprising using a signal from a sensor to separate and align spatial vibration data representing different physiological vibration cycles, the sensor comprising an ECG sensor.