BIOLOGICAL INFORMATION MEASUREMENT DEVICE

• US 20150282748A1
• Filed: 06/17/2015
• Published: 10/08/2015
• Est. Priority Date: 12/20/2012
• Status: Active Grant

• Current Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Original Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Inventors: HAMAGUCHI, Takehiro, KARO, Hiromichi, ISHIDA, Junichi
• Granted Patent: US 10,022,075 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2560/0266 for monitoring or limiting apparatus function
• CPC Class Codes: A61B 2560/0443 Modular apparatus
• CPC Class Codes: A61B 5/02433 for infrared radiation
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/7445 Display arrangements, e.g. multiple display units

Abstract

A biological information measurement device according to the present invention detects a signal expressing biological information from a fingertip using an internal sensor (S1). A first perfusion index and first biological information aside from the first perfusion index are obtained from the signal detected by the internal sensor (S2, S3). It is determined whether or not the first perfusion index is greater than or equal to a first threshold (S4). When the first perfusion index is greater than or equal to the first threshold, the first biological information is permitted to be displayed in a display unit (S5). However, when the first perfusion index is less than the first threshold, a notification is made indicating that an external sensor that is lighter than a main body, is an entity separate from the main body, and is communicably connected to the main body is to be used (S6).

Claims

1. A biological information measurement device having a main body that is to be attached to a measurement area, the device comprising, in the main body:

a first sensor that detects a signal expressing biological information from the measurement area;

a display unit capable of displaying biological information;

a first perfusion index obtainment unit that obtains a first perfusion index expressing a ratio between a pulsation component and a non-pulsation component of arterial blood in the measurement area based on the signal detected by the first sensor;

a first biological information obtainment unit that obtains first biological information of the measurement area, aside from the first perfusion index, by processing the signal detected by the first sensor;

a first determining unit that determines whether or not the first perfusion index is greater than or equal to a first threshold; and

a control unit that carries out control for permitting the first biological information to be displayed in the display unit when the first determining unit has determined that the first perfusion index is greater than or equal to the first threshold and making a notification that a second sensor that is lighter than the main body, is an entity separate from the main body, and is communicably connected to the main body is to be used when the first determining unit has determined that the first perfusion index is less than the first threshold.

2. The biological information measurement device according to claim 1,

wherein the control unit prohibits the first biological information from being displayed in the display unit when the first determining unit has determined that the first perfusion index is less than the first threshold.

3. The biological information measurement device according to claim 1,

wherein the control unit displays an indication that the first perfusion index is low in the display unit when the first determining unit has determined that the first perfusion index is less than the first threshold.

4. The biological information measurement device according to claim 1, further comprising:

a connection detecting unit that detects whether or not the second sensor has been connected to the main body; and

a second biological information obtainment unit that obtains second biological information of the measurement area by processing the signal detected by the second sensor from the measurement area when the second sensor has been connected to the main body,

wherein when the second biological information has been obtained by the second biological information obtainment unit, the control unit permits the second biological information to be displayed in the display unit.

5. The biological information measurement device according to claim 1, further comprising:

a connection detecting unit that detects whether or not the second sensor has been connected to the main body;

a second perfusion index obtainment unit that obtains a second perfusion index expressing a ratio between a pulsation component and a non-pulsation component of arterial blood in the measurement area based on the signal detected by the second sensor from the measurement area when the second sensor has been connected to the main body;

a second biological information obtainment unit that obtains second biological information of the measurement area, aside from the second perfusion index, by processing the signal detected by the second sensor; and

a second determining unit that determines whether or not the second perfusion index is greater than or equal to a second threshold,

wherein the control unit carries out control for permitting the second biological information to be displayed in the display unit when the second determining unit has determined that the second perfusion index is greater than or equal to the second threshold and making a notification that an accurate measurement cannot be taken when the second determining unit has determined that the second perfusion index is less than the second threshold.

6. The biological information measurement device according to claim 5,

wherein the control unit prohibits the second biological information from being displayed in the display unit when the second determining unit has determined that the second perfusion index is less than the second threshold.

7. The biological information measurement device according to claim 5,

wherein the control unit displays an indication that the second perfusion index is low in the display unit when the second determining unit has determined that the second perfusion index is less than the second threshold.

8. The biological information measurement device according to claim 1,

wherein a part including the first sensor is provided so as to be removable from the main body;

and

the control unit carries out control for making a notification that the part including the first sensor is to be removed from the main body and used instead of a notification indicating that the second sensor is to be used when the first determining unit has determined that the first perfusion index is less than the first threshold.

9. The biological information measurement device according to claim 1,

wherein the notification is a display of a message or a graphic in the display unit and/or a buzzer sound or audio.