Measuring device for a lancet-integrated sensor

• US 8,235,914 B2
• Filed: 11/07/2008
• Issued: 08/07/2012
• Est. Priority Date: 01/19/2001
• Status: Expired due to Term

• Current Assignee: PHC Holdings Corporation
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Kojima, Shinichi, Tokuno, Yoshinobu
• Primary Examiner(s): Hoekstra, Jeffrey G
• Application Number:
  US12/267,161
• Publication Number:
  US 20090069719A1
• Time in Patent Office: 1,369 Days
• Field of Search: 600/583, 600/576, 600/347, 600/365, 606/167, 606/181, 606/182, 606/185, 604/6.15, 604/6.16, 604/117, 604/136
• US Class Current: 600/583
• CPC Class Codes: A61B 2562/0295 Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150259 Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
• CPC Class Codes: A61B 5/150412 Pointed piercing elements, e.g. needles, lancets for piercing the skin blade-like piercing elements A61B5/150442
• CPC Class Codes: A61B 5/150519 Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
• CPC Class Codes: A61B 5/150564 Protectors removed by pulling or pushing
• CPC Class Codes: A61B 5/150717 manually removed
• CPC Class Codes: A61B 5/150725 removal procedure linked to further actions, e.g. cocking of the piercing device, which indicate that the piercing device is used or tempered
• CPC Class Codes: A61B 5/15113 Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
• 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 5/1513 comprising linear sliding guides comprising tooth-shaped elements A61B5/15132
• 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

Abstract

A sensor and a lancet are integrated with each other. A thin strip-shaped sensor and a lancet are integrated so that the lancet moves in parallel, along a longitudinal direction of the sensor. A measuring device to which an integrated lancet and sensor is attached is provided with a function of driving the attached lancet.

Claims

1. A measuring device for performing measurement of characteristics of a bodily fluid using a lancet-integrated sensor that is detachably attached to said measuring device and that is formed by integrating a lancet for lancing skin to collect the bodily fluid and a sensor for analyzing the collected bodily fluid, the lancet-integrated sensor having a protection cover which includes a grip part, said measuring device including:

a terminal member arranged to electrically connect with a body of the sensor; and

a lancet driving mechanism that engages a portion of the lancet, said lancet driving mechanism including an elastic member and a latch;

wherein said elastic member is provided and arranged to be compressed to store driving power by attaching the lancet-integrated sensor to said measuring device to connect the body of the sensor with said terminal member and to engage the portion of the lancet with said lancet driving mechanism,

wherein said latch releasably holds said elastic member in a compressed state, and said latch is arranged such that a lancing operation is performed by release of said latch to drive the lancet, and

wherein said lancet driving mechanism is structured such that said elastic member is compressed during attachment of the lancet-integrated sensor to said measuring device by pushing the grip part of the protection cover toward the measuring device.

2. The measuring device of claim 1, wherein one end of the lancet-integrated sensor projects from said measuring device when attachment of the lancet-integrated sensor to said measuring device is completed.

3. The measuring device of claim 2, wherein said lancet driving mechanism is structured and arranged such that a needle tip of the lancet projects from the body of the sensor only during a lancing operation to lance the skin, and at all other times is housed in the sensor.

4. The measuring device of claim 3, wherein said lancet driving mechanism is structured and arranged to drive the lancet with an end of the lancet that is opposite to a needle tip of the lancet engaged with said lancet driving mechanism.

5. The measuring device of claim 4, wherein said elastic member comprises a spring arranged to apply a force to the lancet in a longitudinal direction of the sensor and said latch is released to release the driving power of said spring by a press button.

6. The measuring device of claim 2, wherein said lancet driving mechanism is structured and arranged to drive the lancet with an end of the lancet that is opposite to a needle tip of the lancet engaged with said lancet driving mechanism.

7. The measuring device of claim 6, wherein said elastic member comprises a spring arranged to apply a force to the lancet in a longitudinal direction of the sensor and said latch is released to release the driving power of said spring by a press button.

8. The measuring device of claim 1, wherein said lancet driving mechanism is structured and arranged such that a needle tip of the lancet projects from the body of the sensor only during a lancing operation to lance the skin, and at all other times is housed in the sensor.

9. The measuring device of claim 8, wherein said terminal member (a) comprises a connection terminal positioned to maintain an electrical connection with an electrode terminal on an end of the body of the sensor and (b) is connected to an internal electric circuit to measure the characteristics of the collected bodily fluid.

10. The measuring device of claim 9, wherein said lancet driving mechanism is structured and arranged to drive the lancet with an end of the lancet that is opposite to a needle tip of the lancet engaged with said lancet driving mechanism.

11. The measuring device of claim 8, wherein said lancet driving mechanism is structured and arranged to drive the lancet with an end of the lancet that is opposite to a needle tip of the lancet engaged with said lancet driving mechanism.

12. The measuring device of claim 11, wherein said elastic member comprises a spring arranged to apply a force to the lancet in a longitudinal direction of the sensor and said latch is released to release the driving power of said spring by a press button.

13. The measuring device of claim 1, wherein said elastic member comprises a spring arranged to apply a force to the lancet in a longitudinal direction of the sensor and said latch is released to release the driving power of said spring by a press button.

14. The measuring device of claim 1, wherein the body of the sensor has a shape of a long and narrow strip and a detachable protection cover fitted to a needle tip of the lancet, the cover being attached during attachment of the lancet-integrated sensor to said measuring device and removed during the lancing operation, and said lancet driving mechanism supports an end of the lancet that is opposite to the needle tip of the lancet.

15. The measuring device of claim 1, wherein a holder is provided to cover a periphery of the lancet to hold the body of the sensor and the lancet so that when the body of the sensor and the lancet are attached to said measuring device, both the body of the sensor and the lancet are held by said holder with an end of the lancet opposite to a needle tip of the lancet being held by said lancet driving mechanism.

16. The measuring device of claim 1, further comprising an operating button operable to eject a used lancet-integrated sensor from said measuring device without an operator touching the lancet-integrating sensor.

17. The measuring device of claim 1, further comprising a display on a body of said measuring device that displays an amount of projection of a needle tip of the lancet from a front end of the sensor.

18. A measuring device for performing measurement of characteristics of a bodily fluid using a lancet-integrated sensor that is detachably attached to said measuring device and that is formed by integrating a lancet for lancing skin to collect the bodily fluid and a sensor for analyzing the collected bodily fluid, the lancet-integrated sensor having a protection cover which includes a grip part, said measuring device comprising:

a case having an insertion slot for inserting the lancet-integrated sensor into said case;

a terminal member arranged in said case to electrically connect with a body of the sensor; and

a lancet driving mechanism for engaging a portion of the lancet, said lancet driving mechanism including a connector receiver arranged in said case, an elastic member attached to said connector receiver, and a latch for holding said connector receiver;

wherein said elastic member is provided and arranged to be compressed to store driving power by inserting the lancet-integrated sensor through said insertion slot and attaching the lancet-integrated sensor to said measuring device such that the body of the sensor is connected with said terminal member and the portion of the lancet is engaged with said lancet driving mechanism,

wherein said latch releasably holds said connector receiver to maintain said elastic member in a compressed state, and said latch is arranged such that a lancing operation is performed by release of said latch to drive the lancet, and

wherein said lancet driving mechanism is structured such that said elastic member is compressed during attachment of the lancet-integrated sensor to said measuring device by pushing the grip part of the protection cover toward said lancet driving mechanism such that the lancet pushes against the connector receiver.

19. A measuring device for performing measurement of characteristics of a bodily fluid, said measuring device comprising:

a lancet-integrated sensor that is formed by integrating a lancet for lancing skin to collect the bodily fluid and a sensor for analyzing the collected bodily fluid, said lancet-integrated sensor having a protection cover which includes a grip part,

a case having an insertion slot for inserting said lancet-integrated sensor into said case;

a terminal member arranged in said case to electrically connect with a body of said sensor; and

a lancet driving mechanism for engaging a portion of said lancet, said lancet driving mechanism including a connector receiver arranged in said case, an elastic member attached to said connector receiver, and a latch for holding said connector receiver;

wherein said elastic member is provided and arranged to be compressed to store driving power by inserting said lancet-integrated sensor through said insertion slot and attaching said lancet-integrated sensor to said measuring device such that said body of said sensor is connected with said terminal member and said portion of said lancet is engaged with said lancet driving mechanism,

wherein said latch releasably holds said connector receiver to maintain said elastic member in a compressed state, and said latch is arranged such that a lancing operation is performed by release of said latch to drive said lancet, and

wherein said lancet driving mechanism is structured such that said elastic member is compressed during attachment of said lancet-integrated sensor to said measuring device by pushing said grip part of said protection cover toward said lancet driving mechanism such that said lancet pushes against said connector receiver.