Lancing unit and lancing apparatus

• US 8,043,231 B2
• Filed: 11/24/2008
• Issued: 10/25/2011
• Est. Priority Date: 07/02/2002
• Status: Active Grant

• Current Assignee: ARKRAY, Inc
• Original Assignee: ARKRAY, Inc
• Inventors: Matsumoto, Daisuke, Sakata, Tetsuya
• Primary Examiner(s): Hindenburg; Max
• Assistant Examiner(s): Szmal; Brian
• Application Number:
  US12/276,793
• Publication Number:
  US 20090124931A1
• Time in Patent Office: 1,065 Days
• Field of Search: 600/583, 600/584, 606181-183
• US Class Current: 600/583
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150099 by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
• 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 5/150412 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 5/150549 Protectors removed by rotational movement, e.g. torsion or screwing
• CPC Class Codes: A61B 5/150557 Protectors removed by bending
• CPC Class Codes: A61B 5/150564 Protectors removed by pulling or pushing
• CPC Class Codes: A61B 5/150618 Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
• 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 5/1519 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 lancing unit (U1) includes a lancing member (2), an auxiliary part (3) which is separate from the lancing member (2), and a supporter (1) detachably supporting these. Preferably, the lancing unit (U1) further includes a cap (29) which covers a needle (21) of the lancing member (2) and which is detachable from the lancing member (2), and the lancing member (2) is supported by the supporter (1) via the cap (29).

Claims

1. A lancing apparatus comprising:

a moving mechanism for holding a lancing member and advancing the lancing member in a first direction; and

a sensor holder for arranging and holding a sensor at a position spaced from a path of the advancing movement of the lancing member in a second direction crossing the first direction;

wherein the sensor holder is movable in the second direction together with the sensor held by the sensor holder;

wherein the moving mechanism detachably holds the lancing member; and

wherein a cap for covering a needle of the lancing member is attached to the lancing member, the sensor holder being capable of moving the sensor toward the advancing movement path of the lancing member when the cap is separated from the lancing member with the lancing member held by the moving mechanism.

2. A lancing apparatus comprising:

a moving mechanism for holding a lancing member and advancing the lancing member in a first direction; and

a sensor holder for arranging and holding a sensor at a position spaced from a path of the advancing movement of the lancing member in a second direction crossing the first direction;

wherein the sensor holder is movable in the second direction together with the sensor held by the sensor holder; and

wherein, when the lancing member advances, the lancing member engages the sensor holder so that the advancing movement of the lancing member is controlled.

3. A lancing apparatus comprising:

a moving mechanism for holding a lancing member and advancing the lancing member in a first direction;

a sensor holder for arranging and holding a sensor at a position spaced from a path of the advancing movement of the lancing member in a second direction crossing the first direction; and

a measurement probe;

wherein the sensor holder is movable in the second direction together with the sensor held by the sensor holder;

wherein the sensor includes an electrode for analyzing a sample obtained by lancing; and

wherein the measurement probe is brought into contact with the electrode as a result of movement of the sensor toward the advancing movement path of the lancing member.

4. The lancing apparatus according to claim 3, further comprising a control circuit for executing analysis of the sample.

5. A lancing apparatus comprising:

a housing;

a moving mechanism for holding a lancing member in the housing and moving the lancing member along an axis of the housing;

a sensor holder inserted into the housing for holding a sensor, the sensor holder including an insertion wall;

a holding attachment internally mounted to the housing, the holding attachment having an insertion space defined by an inner side wall extending along the axis of the housing, the insertion wall of the sensor holder being inserted into the insertion space of the holding attachment; and

pressing means for pressing the insertion wall of the sensor holder against the inner side wall of the holding attachment to hold the insertion wall of the sensor holder between the pressing means and the side wall of the holding attachment while allowing the sensor holder to move along the axis of the housing under application of a force.

6. The lancing apparatus according to claim 5, wherein the pressing means comprises a resilient member for pressing the insertion wall of the sensor holder against the inner side wall of the holding attachment.

7. The lancing apparatus according to claim 5, wherein the sensor holder includes a main body having a sensor mounting surface for mounting the sensor, the sensor holder further including a projecting wall projecting from the main body to serve as the insertion wall.

8. The lancing apparatus according to claim 5, wherein the sensor holder is formed with a through-hole for inserting a measurement probe into contact with the sensor.

9. The lancing apparatus according to claim 8, wherein the holding attachment is formed with an additional through-hole aligned with the through-hole of the sensor for inserting the probe into contact with the sensor.