Liquid sample measurement device with removable lancet or biosensor

• US 10,016,155 B2
• Filed: 12/26/2012
• Issued: 07/10/2018
• Est. Priority Date: 12/26/2011
• Status: Active Grant

• Current Assignee: PHC Holdings Corporation
• Original Assignee: PHC Holdings Corporation
• Inventors: Terashima, Noriyoshi, Nagao, AKio, Nadaoka, Masataka, Oda, Yoshimasa
• Primary Examiner(s): Kremer, Matthew
• Application Number:
  US14/362,602
• Publication Number:
  US 20140364767A1
• Time in Patent Office: 2,022 Days
• Field of Search: None
• CPC Class Codes: A61B 2560/0266 for monitoring or limiting apparatus function
• 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 2562/08 Sensors provided with means for identification, e.g. barcodes or memory chips
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• 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 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150175 Adjustment of penetration depth
• CPC Class Codes: A61B 5/150358 Strips for collecting blood, e.g. absorbent optical reagent test strips G01N21/8483; chemical reagent test strips G01N33/4875, G01N33/52
• CPC Class Codes: A61B 5/150427 Specific tip design, e.g. for improved penetration characteristics
• CPC Class Codes: A61B 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/150793 Electrical or magnetic identification means
• CPC Class Codes: A61B 5/15087 short range, e.g. between console and disposable using implanted devices A61B5/150877
• CPC Class Codes: A61B 5/15111 Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit
• CPC Class Codes: A61B 5/15194 fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood
• CPC Class Codes: A61B 5/6898 Portable consumer electronic devices, e.g. music players, telephones, tablet computers

Abstract

This liquid sample measurement device is provided with: a lancet mounting part to and from which a lancet device having a skin contact section for puncturing skin can be attached and detached; a sensor mounting part to which a biosensor, which is spotted with blood that comes out from the punctured skin, can be attached; and a measurement part that uses the biosensor attached to the sensor mounting part to measure the amounts of substances in the blood. The liquid sample measurement device includes a feature that makes it necessary to replace a lancet device that has been attached to the lance mounting part and has punctured skin, each time a lancet device is used to puncture skin.

Claims

1. A liquid sample measurement device to which a lancet device may be removably attached, the lancet device having a skin contacting face configured to come into contact with a skin during puncturing of the skin, the liquid sample measurement device to which a biosensor may be removably attached, the biosensor having a blood sample deposited on it created by the puncturing of the skin, the liquid sample measurement device comprising:

a lancet wearing cavity configured to allow removable attachment of the lancet device;

a sensor port to which the biosensor is removably attached;

a measuring sensor configured to measure an amount of a substance in the blood sample and produce a first measurement by applying a voltage or a current to electrodes of the biosensor; and

a display configured to display the first measurement of the measuring sensor;

a lancet detector configured to detect whether or not the lancet device is attached to the liquid sample measurement device and transmit a result of the detection; and

a controller configured to control the measuring sensor, the controller also being connected to a detection sensor; and

a memory configured to record the first measurement of the measuring sensor, wherein

after the measuring sensor produces the first measurement, the controller is further configured to prevent the memory from recording the first measurement until both removal of the lancet device from the liquid sample measurement device is detected by the lancet detector and removal of the biosensor from the liquid sample measurement device is detected by the detection sensor.

2. The liquid sample measurement device according to claim 1, wherein

after the measuring sensor produces the first measurement, the controller is further configured to prevent the measuring sensor from producing a second measurement until both replacement of the lancet device in the liquid sample measurement device is detected by the lancet detector and replacement of the biosensor in the liquid sample measurement device is detected by the detection sensor.

3. The liquid sample measurement device according to claim 1, further comprising:

a user interface configured to accept user input of information identifying a measurer, a person to be measured, and the biosensor;

the controller further configured to associate the information identifying the measurer, the person to be measured, and the biosensor with the first measurement.

4. The liquid sample measurement device according to claim 1, further comprising:

an ejecting lever arranged to eject the lancet device from the lancet wearing cavity.

5. The liquid sample measurement device according to claim 1, further comprising:

a driver unit being disposed in the liquid sample measurement device, wherein

the driver unit is configured to drive the lancet device and wherein the lancet device is a disposable lancet needle cartridge.

6. The liquid sample measurement device of claim 1, wherein

the lancet device and the biosensor are coupled together.

7. The liquid sample measurement device according to claim 1, wherein the measuring sensor is configured to measure a second amount of a second substance in the blood sample and produce a second measurement by applying a second voltage or a second current to the electrodes of the biosensor.