Measurement device

• US 9,622,690 B2
• Filed: 10/17/2013
• Issued: 04/18/2017
• Est. Priority Date: 11/04/2008
• Status: Active Grant

• Current Assignee: PHC Holdings Corporation
• Original Assignee: Panasonic Healthcare Holdings Co., Ltd.
• Inventors: Terashima, Noriyoshi, Nadaoka, Masataka
• Primary Examiner(s): MERKLING, SALLY ANNE
• Application Number:
  US14/056,279
• Publication Number:
  US 20140046160A1
• Time in Patent Office: 1,279 Days
• Field of Search: 6048901
• 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
• 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 that has an attached biosensor that includes a reagent selectively responding to a specific analyte in a biological fluid, and is configured so as to be carried by a user, an analyte measurer that measures a concentration of the specific analyte with a biosensor, and a motion measurer that measures a motion level of the housing. A living activity level calculator calculates a living activity level of the user based on the motion level measured by the motion measurer, a recorder records the living activity level calculated by the living activity level calculator, and a controller associates the concentration of the specific analyte measured by the analyte measurer with an event of living activity of the user, estimated based on the living activity level recorded in the recorder, and records them in the recorder.

Claims

1. A measurement device comprising:

a housing that has an attached biosensor that includes a reagent selectively responding to a specific analyte in a biological fluid, and is configured so as to be carried by a user;

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

a motion measurer that measures a motion level of the housing based on vibration applied to the housing, wherein the motion measurer determines an orientation of the housing with respect to a horizontal and, based upon the determined orientation, measures the vibration applied to the housing after a predetermined time period;

a living activity level calculator that calculates a living activity level of the user in terms of intensity of motion by a living activity of the user, based on the motion level of the housing measured by the motion measurer;

a recorder that records the living activity level calculated by the living activity level calculator; and

a controller that is programmed to detect a plurality of living activity levels recorded in the recorder greater than a first threshold, used to identify a moving activity in daily life to identify an interval between two of the moving activities and the length of the interval to identify a non-moving activity, to determine a meal event if the interval is longer than a predetermined time to identify meal time, to determine whether a time of the measurement of the concentration of the specific analyte performed by the analyte measurer is before the meal event or after the meal event, and to record the concentration of the specific analyte measured by the analyte measurer before the meal event and the concentration of the specific analyte measured by the analyte measurer after the meal event in a distinguishable state in the recorder.

2. The measurement device according to claim 1, further comprising a time counter,

wherein the controller uses timing information output from the time counter when determining the meal event.

3. The measurement device according to claim 1, further comprising a transmitter that transmits the concentration of the specific analyte measured by the analyte measurer before the meal event and the concentration of the specific analyte measured by the analyte measurer after the meal event in the distinguishable state, to an external equipment.

4. The measurement device according to claim 1, further comprising a display that displays the concentration of the specific analyte measured by the analyte measurer before the meal event and the concentration of the specific analyte measured by the analyte measurer after the meal event in the distinguishable state.

5. The measurement device according to claim 1, wherein the biosensor is a disposable glucose sensor to adhere a user'"'"'s blood.

6. The measurement device according to claim 1, wherein the biosensor is a continuous glucose monitoring sensor to be inserted under skin of the user.

7. The measurement device according to claim 1, wherein the controller estimates a meal event based upon living activity during a preceding predetermined time period and, based upon whether a predetermined number of living activities of a predetermined level occurred during the predetermined time period.