# US 12,109,049 B2 · Blood pressure measurement method and apparatus

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- Number: US 12,109,049 B2
- Document ID: US12109049B2
- Status: Granted
- Kind: B2
- Application number: 17/214,849
- Filed: 2021-03-27
- Published: 2021-07-15
- Granted: 2024-10-08
- Earliest claimed: 2018-07-10
- Assignees: Kayden FU
- Applicants: Kayden Beibei Fu
- Inventors: Kayden Beibei Fu; Liming Fu
- Web page: https://patentgrep.com/patent/US12109049B2

## CPC

- A61B 5/02141: {Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits (A61B5/02233, A61B5/0235 take precedence)}
- A61B 5/7203: {for noise prevention, reduction or removal}
- A61B 5/0022: {Monitoring a patient using a global network, e.g. telephone networks, internet}
- A61B 5/0205: Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
- A61B 5/022: by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B 5/02208: {using the Korotkoff method}
- 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 5/741: {using synthesised speech}
- A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)}
- A61B 5/743: {Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots}
- 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}
- G06F 16/2379: {Updates performed during online database operations; commit processing}
- G16H 50/30: for calculating health indices; for individual health risk assessment
- A61B 5/02405: {Determining heart rate variability}
- A61B 2560/0223: of calibration, e.g. protocols for calibrating sensors
- A61B 2560/0238: Means for recording calibration data
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA

## Abstract

A method to determine a real-time blood pressure reference value according to the blood pressure fluctuation factor can determine a blood pressure state by the ratio of the blood pressure measurement value to the blood pressure reference value, and to display the blood pressure reference value, the blood pressure measurement value and the description information of the blood pressure state by the output device. The system, applying the method, includes a mobile terminal and a medical health monitoring system. The application program of the method is downloaded and installed through network connection and APP store or I/O device, so as to describe the user's blood pressure status based on the real-time blood pressure reference value, and report the blood pressure status information and medical advice to the user via network connection.

## Claims

### Claim 1

A mobile terminal comprising:
a processor; and
memory storing instructions for execution by the processor to implement:
receiving a blood pressure measurement value (BP) and a heart rate measurement value (HR);
obtaining blood pressure fluctuation factor parameter information based on age, gender, measurement date, and measurement time of a user;
searching a blood pressure fluctuation value database according to the obtained blood pressure fluctuation factor parameter information, and obtaining blood pressure fluctuation values including an age-related blood pressure fluctuation value (ΔBPage), a measurement-time-related blood pressure fluctuation value (ΔBPhour), and a measurement-date-related blood pressure fluctuation value (ΔBPdate);
determining a real-time blood pressure reference value (BPref) from an ideal blood pressure (BPideal) and the blood pressure fluctuation values from BPref=BPideal+ΔBPage+ΔBPdate+ΔBPhour;
obtaining a blood pressure status according to a blood pressure ratio (BPratio)=BP/BPref; and
displaying and storing the BPref, the BP, and the BPratio.

### Claim 2 (depends on 1)

The mobile terminal according to claim 1, wherein:
outlier blood pressure measurements are eliminated based on a heart rate fluctuation ratio HRratio=HR/HRaverage≥110%, wherein HRaverage is an average value of the HR.

### Claim 3 (depends on 1)

A medical health monitoring system comprising the mobile terminal according to claim 1, further comprising a processing circuit; a storage device for storing instructions and databases; a data transmission system; and a server; wherein:
the processing circuit is configured to execute instructions to perform operations, including receiving user data information and requesting a connection through the server; and
the storage device includes a non-transitory storage medium.

### Claim 4 (depends on 3)

The medical health monitoring system according to claim 3, wherein:
the blood pressure status is displayed based on comparing the BP with a blood pressure threshold.