# US 9,775,517 B2 · Hand-held medical-data capture-device having optical detection of vital signs from multiple filters and interoperation with electronic medical record systems

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- Number: US 9,775,517 B2
- Document ID: US9775517B2
- Status: Granted
- Kind: B2
- Application number: 14/585,171
- Filed: 2014-12-29
- Published: 2016-04-28
- Granted: 2017-10-03
- Earliest claimed: 2014-10-25
- Assignees: Arc Devices, Ltd
- Applicants: Irwin Gross; Michael G. Smith; Mark Khachaturian; Martin Crawley; Steven Gerst; John Barrett; Michael Cronin; Derek Turnbull; Jason Bodnick
- Inventors: Irwin Gross; Michael G. Smith; Mark Khachaturian; Martin Crawley; Steven Gerst; John Barrett; Michael Cronin; Derek Turnbull; Jason Bodnick
- Web page: https://patentgrep.com/patent/US9775517B2

## CPC

- A61B 5/0008: {Temperature signals}
- A61B 5/0013: {Medical image data (A61B1/00011, A61B6/56, A61B8/56 take precedence)}
- A61B 5/0022: {Monitoring a patient using a global network, e.g. telephone networks, internet}
- A61B 5/0059: {using light, e.g. diagnosis by transillumination, diascopy, fluorescence (photoacoustic A61B5/0093; optical measurement of heart rate A61B5/02416; optical measurement of blood flow A61B5/0261; optical measurement of analytes A61B5/1455)}
- A61B 5/0075: {by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy (A61B5/0071 takes precedence)}
- A61B 5/0077: {Devices for viewing the surface of the body, e.g. camera, magnifying lens}
- A61B 5/01: Measuring temperature of body parts {; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue} (clinical contact thermometers G01K13/20)
- A61B 5/015: {By temperature mapping of body part}
- A61B 5/02055: {Simultaneously evaluating both cardiovascular condition and temperature}
- A61B 5/021: Measuring pressure in heart or blood vessels
- A61B 5/02433: {for infrared radiation}
- A61B 5/0261: {using optical means, e.g. infrared light}
- A61B 5/03: Measuring fluid pressure within the body other than blood pressure, e.g. cerebral pressure {; Measuring pressure in body tissues or organs (determining bladder or urethral pressure A61B5/205)}
- A61B 5/08: Measuring devices for evaluating the respiratory organs
- A61B 5/318: Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B 5/441: {Skin evaluation, e.g. for skin disorder diagnosis}
- A61B 5/6887: {mounted on external non-worn devices, e.g. non-medical devices}
- A61B 5/6898: {Portable consumer electronic devices, e.g. music players, telephones, tablet computers}
- A61B 5/7225: {Details of analogue processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation (input circuits for detecting, measuring, or recording bioelectric or biomagnetic signals A61B5/30; specific diagnostic methods using bioelectric or biomagnetic signals A61B5/316)}
- A61B 5/725: {using specific filters therefor, e.g. Kalman or adaptive filters (specific diagnostics methods using using bioelectric or biomagnetic signals A61B5/316)}
- A61B 5/7264: {Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems}
- A61B 5/7271: {Specific aspects of physiological measurement analysis (specific diagnostics methods using bioelectric or biomagnetic signals A61B5/316)}
- A61B 5/7275: {Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor}
- A61B 5/7278: {Artificial waveform generation or derivation, e.g. synthesizing signals from measured signals}
- A61B 5/7425: {Displaying combinations of multiple images regardless of image source, e.g. displaying a reference anatomical image with a live image}
- A61B 5/746: {Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms}
- A61B 5/7475: {User input or interface means, e.g. keyboard, pointing device, joystick}
- G01J 5/0025: {Living bodies (ear thermometers G01J5/0011; detecting, measuring or recording for diagnostic purposes A61B5/00)}
- G01J 5/025: {Interfacing a pyrometer to an external device or network; User interface}
- G01J 5/10: using electric radiation detectors
- G01K 13/223: {Infrared clinical thermometers, e.g. tympanic}
- G06F 18/23: Clustering techniques
- G06T 3/40: Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T 7/0012: {Biomedical image inspection}
- G06T 7/174: involving the use of two or more images
- G06T 7/269: using gradient-based methods
- G06T 7/90: Determination of colour characteristics
- G08B 5/36: using visible light sources
- G08B 21/182: {Level alarms, e.g. alarms responsive to variables exceeding a threshold}
- G08C 17/02: using a radio link
- G16H 10/60: for patient-specific data, e.g. for electronic patient records
- G16H 40/60: for the operation of medical equipment or devices
- G16H 40/63: for local operation
- G16H 40/67: for remote operation
- H04B 7/26: at least one of which is mobile
- H04L 12/4633: {Interconnection of networks using encapsulation techniques, e.g. tunneling}
- H04L 67/04: specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
- H04L 67/10: in which an application is distributed across nodes in the network (software deployment G06F8/60; multiprogramming arrangements G06F9/46)
- H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L 67/51: Discovery or management thereof, e.g. service location protocol [SLP] or web services
- H04L 67/53: using third party service providers
- H04L 67/535: {Tracking the activity of the user (network monitoring arrangements H04L43/00; recording of computer activity G06F11/34)}
- H04N 23/23: from thermal infrared radiation
- H04W 12/08: Access security
- H04W 48/08: Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00)
- H04W 48/16: Discovering, processing access restriction or access information
- H04W 76/10: Connection setup
- H04W 76/11: Allocation or use of connection identifiers
- H04W 76/12: Setup of transport tunnels
- H04W 80/04: Network layer protocols, e.g. mobile IP [Internet Protocol]
- A61B 5/024: Measuring pulse rate or heart rate
- A61B 5/0245: by using sensing means generating electric signals, {i.e. ECG signals}
- A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)}
- A61B 2560/0214: of power generation or supply
- A61B 2560/0475: Special features of memory means, e.g. removable memory cards
- A61B 2562/166: the sensor is mounted on a specially adapted printed circuit board
- A61B 2576/00: Medical imaging apparatus involving image processing or analysis (A61B1/00009, A61B6/52 and A61B8/52 take precedence)
- G01J 2005/0077: {Imaging}
- G02B 13/14: for use with infrared or ultraviolet radiation ({G02B13/008, } G02B13/16 take precedence)
- G06T 2207/10048: Infrared image
- G06T 2207/20024: Filtering details
- G06T 2207/20132: Image cropping
- G06T 2207/30004: Biomedical image processing
- G06T 2207/30088: Skin; Dermal
- G06T 2207/30104: Vascular flow; Blood flow; Perfusion
- G06T 2210/22: Cropping
- G06T 2210/41: Medical
- H04N 25/76: Addressed sensors, e.g. MOS or CMOS sensors
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N)
- G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08C: TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS (fluid pressure transmitting systems F15B; mechanical means for transferring the output of a sensing member into a different variable G01D5/00; mechanical control systems G05G)
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

In one implementation, an apparatus estimates body core temperature from an infrared measurement of an external source point using a cubic relationship between the body core temperature and the measurement of an external source point is described, estimates temperature from a digital infrared sensor and determines vital signs from a solid-state image transducer, or determines vital signs from a solid-state image transducer and estimates body core temperature from an infrared measurement of an external source point using a cubic relationship between the body core temperature and the measurement of an external source point; after which the estimated and/or determined information is transmitted to an external database.

## Claims

### Claim 1

A non-touch thermometer to measure a temperature, the non-touch thermometer comprising:
a microprocessor;
a battery operably coupled to the microprocessor;
a single button operably coupled to the microprocessor;
a camera operably coupled to the microprocessor and operable to capture at least two images to a memory;
wherein the microprocessor includes a pixel-examination-module that is operable to examine pixel values of the at least two images in the memory, a temporal-variation module that is operable to determine temporal variation of the pixel values between the at least two images, wherein the temporal-variation module includes a skin-pixel-identifier that identifies pixel values that are representative of the skin in at least two images, a spatial bandpass filter that is operably coupled to the skin-pixel-identifier and that processes output of the skin-pixel-identifier, a temporal bandpass filter that is operably to a regional facial clusterial module and that is applied to output of the spatial bandpass filter and a temporal-variation identifier that is operable coupled to the temporal bandpass filter and that identifies temporal variation of the output of the temporal bandpass filter, the microprocessor further comprising a signal processing module that is operable to amplify the temporal variation resulting in amplified temporal variation, and a vital-sign generator that is operably coupled to the signal processing module that generates at least one human vital sign from the temporal variation;
a wireless communication subsystem that is operably coupled to the microprocessor and that is operable to transmit a representation of the at least one human vital sign.

### Claim 2 (depends on 1)

The non-touch thermometer of claim 1, wherein the signal processing module is further configured to amplify variations of the pixel values between the at least two images.

### Claim 3 (depends on 1)

The non-touch thermometer of claim 1, wherein the signal processing is temporal processing.

### Claim 4 (depends on 3)

The non-touch thermometer of claim 3, wherein the temporal processing is a bandpass filter.

### Claim 5 (depends on 4)

The non-touch thermometer of claim 4, wherein the bandpass filter is configured to analyze frequencies over time.

### Claim 6 (depends on 1)

The non-touch thermometer of claim 1, wherein applying signal processing includes spatial processing.

### Claim 7 (depends on 1)

The non-touch thermometer of claim 1 wherein the wireless communication subsystem transmits to a static IP address in order to reduce IP discovery burden on the non-touch thermometer.

### Claim 8 (depends on 1)

The non-touch thermometer of claim 1 wherein the wireless communication subsystem transmits through an IP tunnel.

### Claim 9 (depends on 1)

The non-touch thermometer of claim 1 wherein a connection is established and data is pushed from the non-touch thermometer through the wireless communication subsystem, thereafter an external device controls flow of the data between the non-touch thermometer and the external device, wherein the connection further comprises: an authenticated communication channel.

### Claim 10 (depends on 1)

The non-touch thermometer of claim 1, the wireless communication subsystem is configured to operate on a specific segment of a network.

### Claim 11 (depends on 1)

The non-touch thermometer of claim 1, wherein the wireless communication subsystem further comprises:
a component that is operable to transmit a representation of date and time, operator ID, patient identification and manufacturer, model number and firmware revision of the non-touch thermometer.

### Claim 12 (depends on 1)

The non-touch thermometer of claim 1 further comprising
an infrared sensor operably coupled to the microprocessor,
wherein the microprocessor is operable to receive from the infrared sensor a signal that is representative of an infrared signal detected by the infrared sensor and the microprocessor is operable to determine a temperature from the signal that is representative of the infrared signal.

### Claim 13 (depends on 12)

The non-touch thermometer of claim 12 further comprising
wherein the temperature further comprises a body core temperature and wherein determining the body core temperature is based on a cubic relationship representing three thermal ranges between a numerical representation of electromagnetic energy of an external source point and the body core temperature, wherein the cubic relationship includes a coefficient representative of different relationships between the external source point and the body core temperature in the three thermal ranges.

### Claim 14 (depends on 12)

The non-touch thermometer of claim 12 wherein the infrared sensor further comprises:
a digital infrared sensor operably coupled to the microprocessor, the digital infrared sensor having only digital readout ports, the digital infrared sensor having no analog sensor readout ports.