Multi-Vital Sign Detector in an Electronic Medical Records System

• US 20180235478A1
• Filed: 02/18/2017
• Published: 08/23/2018
• Est. Priority Date: 02/18/2017
• Status: Abandoned Application

• Current Assignee: ARC Devices, Ltd.
• Original Assignee: VVV IP Holdings Limited
• Inventors: Khachaturian, Mark, Smith, Michael, Gross, Irwin, Cherapy, Christine
• Application Number:
  US15/436,807
• Publication Number:
  US 20180235478A1
• Time in Patent Office: Days
• CPC Class Codes: A61B 2562/166 the sensor is mounted on a specially adapted printed circuit board
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• 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 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/022 by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
• 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 5/02422 within occluders
• CPC Class Codes: A61B 5/02427 Details of sensor
• CPC Class Codes: A61B 5/0261 using optical means, e.g. infrared light
• 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 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/7278 Artificial waveform generation or derivation, e.g. synthesising signals from measured signals A61B5/327 takes precedence
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: G01N 2015/0222 from dynamic light scattering, e.g. photon correlation spectroscopy

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. An apparatus comprising:

a photoplethysmogram sensor;

a micro dynamic light scattering sensor;

a pneumatic engine;

a cuff bladder that is operably coupled to the pneumatic engine and that expands and contracts in response to air pressure from the pneumatic engine;

a first circuit board including;

a first microprocessor;

the first microprocessor operably coupled to the pneumatic engine, 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 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.

2. The apparatus 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 apparatus of claim 1 further comprising a digital infrared sensor having no analog sensor readout ports.

4. The apparatus of claim 1 further comprising:

a 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.

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

6. The apparatus of claim 4, wherein the temporal-variation-amplifier further comprises a regional facial clusterial module.

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

8. The apparatus of claim 1 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 apparatus of claim 4 further comprising:

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

10. The apparatus 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.

11. The apparatus 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.

12. The apparatus of claim 11 wherein the apparatus is verified by a second apparatus as known by the second apparatus and as allowed by the second apparatus to transfer information to the second apparatus.

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

14. The apparatus of claim 11, wherein a digital infrared sensor further comprises an analog-to-digital sensor.

15. The apparatus 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 apparatus.

2024. The apparatus of claim 14 wherein the digital infrared sensor further comprises a Faraday cage surrounding a single thermopile sensor, a central processing unit and a control block.

16-2023. -2023. (canceled)

2025. An apparatus comprising:

a photoplethysmogram sensor;

a micro dynamic light scattering sensor;

a pneumatic engine;

a cuff bladder that is operably coupled to the pneumatic engine and that expands and contracts in response to air pressure from the pneumatic engine;

a first circuit board including;

a first microprocessor;

the first microprocessor operably coupled to the pneumatic engine, 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 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, 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.

2026. The apparatus of claim 2025 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 plurality of vital signs via a short distance wireless communication path.

2027. The apparatus of claim 2026 wherein a connection is established and the plurality of vital signs are pushed from the apparatus through the wireless communication subsystem, thereafter an external device controls flow of the plurality of vital signs between the apparatus and the external device, wherein the connection further comprises an authenticated communication channel.

2028. The apparatus of claim 2026, 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 apparatus.