Electronic sphygmomanometer and blood pressure measurement control method

• US 8,900,157 B2
• Filed: 08/14/2009
• Issued: 12/02/2014
• Est. Priority Date: 09/02/2008
• Status: Active Grant

• Current Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Original Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Inventors: Yamashita, Shingo, Shimose, Yoko
• Primary Examiner(s): Mallari, Patricia
• Assistant Examiner(s): Ramachandran, Vasuda
• Application Number:
  US13/060,417
• Publication Number:
  US 20110160598A1
• Time in Patent Office: 1,936 Days
• Field of Search: 600485-499
• US Class Current: 600/493
• CPC Class Codes: 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
• CPC Class Codes: A61B 5/02225 using the oscillometric method
• CPC Class Codes: A61B 5/0225 the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds

Abstract

A blood pressure measurement control method for controlling the measurement of a blood pressure according to an oscillometric method has the steps of determining whether to employ a depressurization measurement method or a pressurization measurement method to measure the blood pressure according to a person to be measured, performing a measurement process of the blood pressure in a depressurization process when determined to measure the blood pressure with the depressurization measurement method, performing a measurement process of the blood pressure in a pressurization process when determined to measure the blood pressure with the pressurization measurement method, and outputting the measured blood pressure value.

Claims

1. An electronic sphygmomanometer for measuring a blood pressure according to an oscillometric method, the electronic sphygmomanometer comprising:

a cuff to be wrapped around a predetermined measurement site;

an adjustment unit for adjusting a pressure in the cuff by pressurization and depressurization;

a pressure detection unit for detecting a cuff pressure representing the pressure in the cuff; and

a control unit for performing a control for measuring the blood pressure;

wherein the control unit includes;

a determination unit for selecting a depressurization measurement method or a pressurization measurement method to measure the blood pressure according to a person to be measured,

a first measurement processing unit for measuring blood pressure using a depressurization process when the determination unit selects the depressurization measurement method, and

a second measurement processing unit for measuring blood pressure using a pressurization process when the determination unit selects the pressurization measurement method,

wherein during the pressurization process, the blood pressure is determined prior to any cuff depressurization,

wherein the electronic sphygmomanometer further comprises an input accepting unit for accepting input information from a user,

wherein the input information indicates whether an arm of the person to be measured is thick,

wherein the determination unit selects the depressurization or pressurization measurement method based on the input information,

wherein the input accepting unit accepts information on whether or not an arm of the person to be measured is thick as the input information, and

wherein the determination unit selects the pressurization measurement method if the input information indicates that the arm of the person to be measured is thick.

2. The electronic sphygmomanometer according to claim 1, further comprising:

a display unit for displaying the measurement result of the blood pressure,

wherein the display unit further displays information for specifying the method selected for the measurement of the depressurization measurement method and the pressurization measurement method.

3. The electronic sphygmomanometer according to claim 1, wherein the first measurement processing unit transitions the performing of the measurement process to a depressurization control at slow speed when the systolic blood pressure is estimated in the pressurization process at a speed faster than the depressurization process from previous measurements.

4. The electronic sphygmomanometer according to claim 1, wherein the second measurement processing unit rapidly depressurizes when the systolic blood pressure is detected in the pressurization process at slow speed.

5. A method for measuring a blood pressure according to an oscillometric method using an electronic sphygmomanometer, comprising:

a wrapping step of wrapping a cuff of the electronic sphygmomanometer around a predetermined measurement site;

an adjustment step of adjusting via the electronic sphygmomanometer a pressure in the cuff by pressurization and depressurization;

a detecting step of detecting via the electronic sphygmomanometer a cuff pressure representing the pressure in the cuff; and

a control step of performing a control for measuring the blood pressure via the electronic sphygmomanometer;

wherein the control step comprises;

a determination step of selecting a depressurization measurement method or a pressurization measurement method to measure the blood pressure according to a person to be measured,

a first measurement step of performing a measurement process of the blood pressure in a depressurization process when selected by the determination step to measure the blood pressure with the depressurization measurement method, and

a second measurement step of performing a measurement process of the blood pressure in a pressurization process when selected by the determination step to measure the blood pressure with the pressurization measurement method,

wherein during the pressurization process, the blood pressure is determined prior to any cuff depressurization,

wherein the method further comprises an input accepting step for accepting input information from a user via the electronic sphygmomanometer,

wherein the determination step includes selecting the measurement method based on the input information, and

wherein the determination step includes selecting the pressurization measurement method if the arm of the person to be measured is thick.