Blood Pressure Monitor Calibration Device And Method For Calibrating A Blood Pressure Monitor

• US 20080077021A1
• Filed: 09/27/2006
• Published: 03/27/2008
• Est. Priority Date: 09/27/2006
• Status: Abandoned Application

• Current Assignee: FKA Distributing Company
• Original Assignee: FKA Distributing Company
• Inventors: Ching-Hsi, Hung, Ferber, Roman S.
• Application Number:
  US11/535,689
• Publication Number:
  US 20080077021A1
• Time in Patent Office: Days
• US Class Current: 600/485
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 5/022 by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers

Abstract

According to one embodiment of the present invention, a method for calibrating a blood pressure monitor is disclosed. The method includes generating a first training pressure point signal corresponding to a first pressure value; transmitting the first training pressure point signal to a pressure sensor of a blood pressure monitor (BPM); receiving a first sensed pressure value sensed by the pressure sensor; generating a second training pressure point signal corresponding to a second pressure value; transmitting the second training pressure point signal to the pressure sensor of the BPM; receiving a second sensed pressure value sensed by the pressure sensor; receiving BMP calibration data; and generating new calibration data based on the first pressure value, the second pressure value, the first sensed pressure value, the second sensed pressure value and the BMP calibration data.

Claims

1. A method for calibrating a blood pressure monitor, the method comprising:

generating a first training pressure point signal corresponding to a first pressure value;

transmitting the first training pressure point signal to a pressure sensor of a blood pressure monitor (BPM);

receiving a first sensed pressure value sensed by the pressure sensor;

generating a second training pressure point signal corresponding to a second pressure value;

transmitting the second training pressure point signal to the pressure sensor of the BPM;

receiving a second sensed pressure value sensed by the pressure sensor;

receiving BMP calibration data; and

generating new calibration data based on the first pressure value, the second pressure value, the first sensed pressure value, the second sensed pressure value and the BMP calibration data.

2. The method of claim 1, wherein the first pressure value is a relatively low pressure value in the range of 200 to 250 mm Hg and the second pressure value is a relatively high pressure value in the range of 300 to 350 mm Hg.

3. The method of claim 1, further comprising transmitting the new calibration data to the BMP for recalibrating the BMP.

4. The method of claim 1, wherein the transmitting steps are carried out wirelessly.

5. The method of claim 1, further comprising receiving a number of uses value since the last BMP recalibration, and if the value equals a recalibration value, then executing the steps of claim 1.

6. The method of claim 5, wherein the recalibration value is in the range of 2,000 to 15,000 uses.

7. A calibration device for a blood pressure monitor comprising:

a central processing unit (CPU) for executing machine instructions;

a memory for storing machine instructions that are to be executed by the CPU;

a communication interface for electrically communicating with a blood pressure monitor, wherein the machine instructions when executed by the CPU implementing the following functions;

receiving a first training pressure point signal corresponding to a first pressure value;

transmitting the first training pressure point signal to a pressure sensor of a blood pressure monitor (BPM);

receiving a first sensed pressure value sensed by the pressure sensor;

generating a second training pressure point signal corresponding to a second pressure value;

transmitting the second training pressure point signal to the pressure sensor of the BPM;

receiving a second sensed pressure value sensed by the pressure sensor;

receiving BMP calibration data; and

generating new calibration data based on the first pressure value, the second pressure value, the first sensed pressure value, the second sensed pressure value and the BMP calibration data.

8. The calibration device of claim 7, wherein the first pressure value is a relatively low pressure value in the range of 200 to 250 mm Hg and the second pressure value is a relatively high pressure value in the range of 300 to 350 mm Hg.

9. The calibration device of claim 7, wherein the machine instructions when executed by the CPU further implement the following functions:

wirelessly transmitting the first and second training pressure point signals via the communication interface to the BPM.

10. The calibration device of claim 7, further comprising an air pressure circuit for generating the first and second training pressure point signals.

11. The calibration device of claim 10, wherein the air pressure circuit includes a serial port for connecting the air pressure circuit to a pressure sensor of a blood pressure monitor.

12. The calibration device of claim 11, wherein the air pressure circuit includes a processor for executing machine instructions to implement the following functions:

transmitting the first and second training pressure point signals to the pressure sensor of the blood pressure monitor through the serial port.

13. The calibration device of claim 7, wherein the machine instructions when executed by the CPU further implement the following function:

receiving a number of uses value since the last BMP recalibration, and if the value equals a recalibration value, then executing the steps of claim 7.

14. The calibration device of claim 13, wherein the recalibration value is in the range of 2,000 to 15,000 uses.

15. A calibration device for a blood pressure monitor comprising:

a central processing unit (CPU) for executing machine instructions;

a memory for storing machine instructions that are to be executed by the CPU;

a communication interface for electrically communicating with a blood pressure monitor; and

a pressure sensor for sensing a pressure value corresponding to a pressure point signal, wherein the machine instructions when executed by the CPU implementing the following functions;

receiving a pressure point signal (PS) corresponding to a pressure value (PV);

transmitting the PS to the pressure sensor and the communication interface;

receiving a sensed pressure value (SP_B) from the blood pressure monitor through the communication interface;

receiving a sensed pressure value (SP_C) from the pressure sensor;

comparing the difference between SP_B and SP_C with a tolerable range to obtain a calibration status of either “

yes”

if the difference is outside of the tolerable range and “

no”

if the difference is within the tolerable range; and

transmitting the calibration status to determine whether to initiate a calibration sequence.

16. The calibration device of claim 15, wherein the machine instructions when executed by the CPU further implement the following functions:

wirelessly transmitting PS via the communication interface to the blood pressure monitor.

17. The calibration device of claim 15, wherein the tolerable range is 0 to 20 mm Hg.

18. The calibration device of claim 15, wherein the tolerable range is 0 to 10 mm Hg.

19. The calibration device of claim 15, further comprising an air pressure circuit for generating PS.

20. The calibration device of claim 19, wherein the machine instructions when executed by the air pressure circuit further implement the following functions:

generating a new PS corresponding to a different pressure value than the old PS.