BLOOD PRESSURE MEASURING DEVICE AND BLOOD PRESSURE MEASURING METHOD

• US 20160073905A1
• Filed: 08/26/2015
• Published: 03/17/2016
• Est. Priority Date: 09/12/2014
• Status: Abandoned Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Murai, Kiyoaki, Mizukami, Hiromitsu
• Application Number:
  US14/836,353
• Publication Number:
  US 20160073905A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/7278 Artificial waveform generation or derivation, e.g. synthesising signals from measured signals A61B5/327 takes precedence
• CPC Class Codes: A61B 5/7425 Displaying combinations of multiple images regardless of image source, e.g. displaying a reference anatomical image with a live image geometric transforms for image registration G06T3/14; enhancement using image fusion G06T5/50; algorithms for registration of images G06T7/30

Abstract

Measurement data of a blood vessel is generated based on a measurement result of the blood vessel obtained by a blood vessel diameter measurement unit, and a breathing period estimating section estimates a breathing period corresponding to a breathing cycle based on the measurement data. A blood pressure calculating section calculates blood pressure relevant to the blood vessel based on the measurement data. An average calculating section calculates the average of the blood pressure calculated by the blood pressure calculating section in the breathing period estimated by the breathing period estimating section.

Claims

1. A blood pressure measuring device, comprising:

a breathing period determination unit that determines a breathing period corresponding to a breathing cycle based on measurement data of a blood vessel obtained by a measurement unit;

a first calculation unit that calculates blood pressure of the blood vessel based on the measurement data; and

a second calculation unit that calculates blood pressure based on a plurality of values of the blood pressure calculated by the first calculation unit in the breathing period.

2. The blood pressure measuring device according to claim 1,

wherein the second calculation unit calculates an average of the plurality of values of the blood pressure calculated by the first calculation unit.

3. The blood pressure measuring device according to claim 1,

wherein the second calculation unit calculates an average of the plurality of values of the blood pressure calculated by the first calculation unit in a plurality of breathing periods.

4. The blood pressure measuring device according to claim 1,

wherein the second calculation unit calculates an average of diastolic blood pressure or systolic blood pressure of the blood vessel.

5. The blood pressure measuring device according to claim 1,

wherein the measurement data is a blood vessel diameter of the blood vessel, and

the breathing period determination unit determines the breathing cycle from a periodic variation in the blood vessel diameter.

6. The blood pressure measuring device according to claim 1, further comprising:

a display control unit that continuously displays the blood pressure calculated by the second calculation unit by inserting a predetermined switching display whenever the breathing period for calculation of the blood pressure is switched.

7. A blood pressure measuring method, comprising:

determining a breathing period corresponding to a breathing cycle based on measurement data of a blood vessel obtained by a measurement unit;

calculating blood pressure of the blood vessel based on the measurement data; and

calculating blood pressure based on a plurality of values of the blood pressure calculated in the breathing period.

8. The blood pressure measuring method according to claim 7,

wherein the calculation of the blood pressure includes calculating an average of a plurality of values of the blood pressures calculated in the breathing period.

9. The blood pressure measuring method according to claim 7,

wherein the calculation of the blood pressure includes calculating an average of a plurality of values of the blood pressures calculated in a plurality of breathing periods.