Multi-vital sign detector in an electronic medical records system

• US 10,506,926 B2
• Filed: 08/10/2017
• Issued: 12/17/2019
• Est. Priority Date: 02/18/2017
• Status: Active Grant

• Current Assignee: ARC Devices, Ltd., VVV IP Holdings Limited
• Original Assignee: Arc Devices (Ni) Limited
• Inventors: Khachaturian, Mark, Smith, Michael, Gross, Irwin, Cherepy, Christine
• Primary Examiner(s): Jackson, Gary
• Assistant Examiner(s): Kabir, Zahed
• Application Number:
  US15/674,500
• Publication Number:
  US 20190313907A1
• Time in Patent Office: 859 Days
• CPC Class Codes: A61B 2562/166 the sensor is mounted on a specially adapted printed circuit board
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/0008 Temperature signals
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/0024 for multiple sensor units attached to the patient, e.g. using a body or personal area network
• 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 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/02241 of small dimensions, e.g. adapted to fingers
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/0295 using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems

Abstract

In one implementation, a device detects multiple vital signs from sensors such as a digital infrared sensor, a photoplethysmogram (PPG) sensor and at least one micro dynamic light scattering (mDLS) sensor, and thereafter in some implementations the vital signs are transmitted to, and stored by, an electronic medical record system.

Claims

1. A multi-vital sign device comprising:

a finger cuff comprising;

a photoplethysmogram sensor;

a micro dynamic light scattering sensor;

a cuff bladder that expands and contracts in response to air pressure;

a first circuit board including;

a first microprocessor;

the first microprocessor operably coupled to the cuff bladder, the photoplethysmogram sensor and the micro dynamic light scattering sensor; and

a first digital interface that is operably coupled to the first microprocessor;

a pneumatic engine that is mechanically coupled to the cuff bladder via an air line and that supplies the air pressure to the cuff bladder;

a non-contact human multi-vital sign device comprising;

a housing having a top, two sides, two ends and a bottom and comprising;

a second circuit board including;

a second digital interface, the second digital interface being operably coupled to the first digital interface; and

a second microprocessor operably coupled to the second digital interface, the second microprocessor being configured to estimate a plurality of vital signs from data from the photoplethysmogram sensor, from the micro dynamic light scattering sensor and the cuff bladder;

wherein the finger cuff is mounted to the base that is mounted on one of the two sides of the housing of the non-contact human multi-vital sign device.

2. The multi-vital sign device of claim 1 further comprising a display device that further comprises:

a green traffic light that is associated with a first vital sign of the plurality of vital signs and that is configured to indicate that the first vital sign is good;

an amber traffic light that is associated with the first vital sign of the plurality of vital signs and that is configured to indicate that the first vital sign is low; and

a red traffic light that is associated with the first vital sign of the plurality of vital signs and that is configured to indicate that the first vital sign is high.

3. The multi-vital sign device of claim 1 further comprising a digital infrared sensor having no analog sensor readout ports.

4. The multi-vital sign device of claim 1 further comprising:

a three-dimensional camera that is operably coupled to the second microprocessor and configured to provide a plurality of images to the second microprocessor; and

the first microprocessor including a cropper module that is configured to receive the plurality of images and configured to crop the plurality of images to exclude a border area of the plurality of images, generating a plurality of cropped images, the second microprocessor also including a temporal-variation-amplifier of the plurality of cropped images that is configured to generate a temporal variation, the second microprocessor also including a biological vital sign generator that is operably coupled to the temporal-variation-amplifier that is configured to generate a biological vital sign from the temporal variation, wherein the biological vital sign is one of the plurality of vital signs.

5. The multi-vital sign device of claim 4, wherein the temporal-variation-amplifier further comprises a skin-pixel-identification module.

6. The multi-vital sign device of claim 4, wherein the biological vital sign further comprises wound identification and characterization and skin perfusion that quantifies blood flow through skin as a predictor of skin cancer.

7. The multi-vital sign device of claim 4, wherein the temporal-variation-amplifier further comprises a first frequency filter module.

8. The multi-vital sign device of claim 4 wherein a heart rate at rest is estimated from data from a photoplethysmogram sensor, a respiration rate and a heart rate variability and a blood pressure diastolic is estimated from data from a micro dynamic light scattering sensor and the photoplethysmogram sensor.

9. The multi-vital sign device of claim 4 further comprising:

wherein a blood pressure systolic is estimated from data from a micro dynamic light scattering sensor.

10. The multi-vital sign device of claim 4 further comprising a storage device that is operably coupled to the biological vital sign generator and that is configured to store the plurality of vital signs to the multi-vital sign device.

11. The multi-vital sign device of claim 4 wherein a wireless communication subsystem is operably coupled to the second microprocessor and the wireless communication subsystem is configured to transmit a representation of the biological vital sign via a short distance wireless communication path to an IoT hub that is a beacon that is operable for proximity and location based workflows and provides context for users, services and facilities, supports virtual channels and provides HDX casting that redirects video output from the multi-vital sign device, and provides intelligent redirection, adaptive compression and data duplication.

12. The multi-vital sign device of claim 11 wherein the multi-vital sign device is verified by a second device as known by the second device and as allowed by the second device to transfer information to the second device.

13. The multi-vital sign device of claim 11 wherein a connection is established and the plurality of vital signs are pushed from the multi-vital sign device through the wireless communication subsystem, thereafter an external device controls flow of the plurality of vital signs between the multi-vital sign device and the external device, wherein the connection further comprises an encrypted communication channel.

14. The multi-vital sign device of claim 11, wherein a digital infrared sensor further comprises an analog-to-digital sensor.

15. The multi-vital sign device of claim 11, wherein the wireless communication subsystem further comprises a component that is configured to transmit a representation of date and time, operator identification, patient identification, manufacturer and model number of the multi-vital sign device.