Measurement Device

• US 10,070,822 B2
• Filed: 11/15/2017
• Issued: 09/11/2018
• Est. Priority Date: 11/04/2008
• Status: Active Grant

• Current Assignee: PHC Holdings Corporation
• Original Assignee: PHC Holdings Corporation
• Inventors: Terashima, Noriyoshi, Nadaoka, Masataka
• Primary Examiner(s): Merkling, Sally Anne
• Application Number:
  US15/813,467
• Publication Number:
  US 20180070883A1
• Time in Patent Office: 300 Days
• CPC Class Codes: A61B 2560/0406 specially shaped apparatus housings
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 2562/0295 Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157 disposable multilayered or laminated electrodes G01N27/307; details of handling chemical test elements G01N33/4875
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/1116 Determining posture transitions
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/14865 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
• CPC Class Codes: A61B 5/416 the spleen
• CPC Class Codes: A61B 5/4806 Sleep evaluation A61B5/4821 takes precedence; devices for inducing sleep A61M21/02
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61B 5/4866 Evaluating metabolism A61B5/083 takes precedence
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A61B 5/721 using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured
• CPC Class Codes: A61B 5/74 Details of notification to user or communication with user or patient indicating measured values G01D7/00; user input means input or output arrangements for computers G06F3/00
• CPC Class Codes: A61M 2005/1726 the body parameters being measured at, or proximate to, the infusion site
• CPC Class Codes: A61M 2205/3368 Temperature
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 2230/201 : Glucose concentration
• CPC Class Codes: A61M 2230/50 : Temperature
• CPC Class Codes: A61M 2230/63 : Motion, e.g. physical activity
• CPC Class Codes: A61M 5/142 : Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/14244 : adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/1723 : using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G01N 27/3273 : Devices therefor, e.g. test element readers, circuitry details not specific to biochemical electrodes G01N33/4875

Abstract

A measurement device includes a housing to which a biosensor having a reagent is attachable and which is carriable by a user, the reagent selectively responding to a specific analyte in a biological fluid. An analyte measurer measures a concentration of the specific analyte, using the biosensor, a motion measurer measures vibration applied to the housing, as a motion amount, and a living activity calculator calculates a living activity amount based on the measured motion amount. A recorder records the living activity amount output by the living activity calculator and a controller causes the recorder to record the specific analyte concentration measured by the analyte measurer and an event of the living activity, the concentration and the event being associated with each other, the event of the living activity being estimated based on the living activity amount recorded in the recorder.

Claims

1. A measurement device comprising:

a housing to which a biosensor having a reagent is attachable and which is configured to be carried by a user, the reagent selectively responding to a specific analyte in a biological fluid;

an analyte measurer that measures a concentration of the specific analyte, using the biosensor;

a motion measurer that measures vibration applied to the housing, as a motion amount;

a living activity amount calculator that calculates a living activity amount based on the motion amount output by the motion measurer;

a recorder that records the living activity amount output by the living activity amount calculator; and

a controller programmed to cause the recorder to record therein the concentration of the specific analyte measured by the analyte measurer and an event of the living activity of the user, with the concentration and the event being associated with each other, the event of the living activity of the user being estimated based on the living activity amount recorded in the recorder.

2. The measurement device according to claim 1, wherein the event of the living activity relates to a meal or sleeping.

3. The measurement device according to claim 2, wherein the controller causes the recorder to record therein a measurement result of the concentration of the specific analyte in association with a pre-meal or post-meal state.

4. The measurement device according to claim 2, wherein the controller causes the recorder to record therein a measurement result of the concentration of the specific analyte in association with a before-sleep, asleep or after-sleep state.

5. The measurement device according to claim 2, wherein the controller causes the recorder to record therein a measurement result of the concentration of the specific analyte in association with rolling over during sleeping.

6. The measurement device according to claim 1, further comprising a time counter, wherein the controller uses time information output by the time counter, when estimating the event of the living activity.

7. The measurement device according to claim 1, further comprising a transmitter that transmits, to an external device, at least one of the motion amount of the housing, the living activity amount of the user, the event associated with the living activity and/or the measurement result of the concentration of the specific analyte recorded in the recorder.

8. The measurement device according to claim 1, further comprising a display that displays a measurement result of the concentration of the specific analyte, the event and the living activity amount recorded in the recorder.

9. The measurement device according to claim 1, wherein the biosensor is a disposable glucose sensor used for spotting blood of the user.

10. The measurement device according to claim 1, wherein the biosensor is a continuous glucose monitoring sensor which is subcutaneously inserted into the user.