External Calibration and Recalibration for a Blood Pressure Monitor

• US 20160045119A1
• Filed: 08/18/2014
• Published: 02/18/2016
• Est. Priority Date: 08/18/2014
• Status: Abandoned Application

• Current Assignee: Empirical Technologies Corporation
• Original Assignee: Empirical Technologies Corporation
• Inventors: Baruch, Martin, David, Gerdt
• Application Number:
  US14/462,484
• Publication Number:
  US 20160045119A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/02108 from analysis of pulse wave characteristics
• CPC Class Codes: A61B 5/022 by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/7221 Determining signal validity, reliability or quality A61B5/7207 and A61B5/7217 take precedence

Abstract

A method and system for the external calibration and recalibration of a blood pressure monitor comprising a continuous pulse waveform detector, a pulse decomposition analyzer for analyzing high resolution pulse wave forms, and an absolute blood pressure monitor. Upon startup, the pulse waveform detector is initialized by the pulse decomposition analyzer based upon a reading from the absolute blood pressure monitor. Upon detection of a physiological event from the pulse decomposition analyzer, the absolute blood pressure monitor is directed to take a reading which is then used to recalibrate the pulse waveform detector.

Claims

1. A method of calibrating and recalibrating a hydrostatic cuff diagnostic device for detecting a pulse waveform comprising, sensing a physiological parameters sensed changes the calibration of the hydrostatic cuff diagnostic device,

activating an external absolute blood pressure system and determining a recalibrate factor,

communicating said recalibration factor to said diagnostic device,

recalibrating said diagnostic device using said recalibration factor,

wherein said recalibration factor is based on measured changes in physiological parameters.

2. The method of claim 1, wherein said hydrostatic cuff diagnostic device is a finger cuff.

3. The method of claim 1, wherein said communicating of said recalibration factor is by means of a wireless signal.

4. The method of claim 1, further comprising said communication of said recalibration factor is by a radio enabled automatic external blood pressure measurement system and wherein a resulting absolute blood pressure is communicated to said hydrostatic cuff diagnostic device via radio.

5. A blood pressure monitor comprising:

a control device having a pulse decomposition analyzer, recalibration parameters, a control communication means; and

a pulse waveform detector capable of being worn by an animate being and further being capable of continually detecting said animate being'"'"'s pulse waveform, and having detector communication means for continually communicating said pulse wave form and means for receiving calibration instructions;

an absolute blood pressure monitor for detecting the absolute blood pressure of said animate being and monitor communication means capable of communicating said absolute blood pressure to said control device and for receiving instructions to initiate said detection of said absolute blood pressure of said animate being;

wherein said control communication means is capable of communicating with said detector communication means and said monitor communication means, and wherein said control device continually analyzes said pulse waveform with said pulse decomposition analyzer and compares said analysis against said recalibration parameters and initiates a calibration process;

wherein said calibration process comprises;

sending an absolute blood pressure request to said absolute blood pressure monitor to measure the absolute blood pressure;

communicating the absolute blood pressure to said control device;

generating calibration instructions based upon said absolute blood pressure; and

communicating calibration instructions to said pulse waveform detector, and

wherein said control device also initiates said calibration process upon startup of said blood pressure monitor.

6. The system of claim 5 wherein said pulse waveform detector is a finger cuff.

7. The system of claim 5 wherein

said control device is implemented on a general purpose computer;

said pulse decomposition analyzer is a software component on said general purpose computer.

8. The system of claim 7 wherein at least one of said detector communication means and said monitor communication means comprises Bluetooth technology.

9. The system of claim 7 wherein at least one of said detector communication means and said monitor communication means comprises a cable using USB technology.