Lancing device

• US 8,556,827 B2
• Filed: 02/29/2008
• Issued: 10/15/2013
• Est. Priority Date: 06/27/2003
• Status: Active Grant

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Laboratories Incorporated
• Inventors: Mace, Chad Harold
• Primary Examiner(s): Hindenburg, Max
• Assistant Examiner(s): DANEGA, RENEE A
• Application Number:
  US12/040,418
• Publication Number:
  US 20090054812A1
• Time in Patent Office: 2,055 Days
• Field of Search: 600/583, 606/181
• US Class Current: 600/583
• 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 5/15019 Depth adjustment mechanism using movable stops located inside the piercing device housing and limiting the travel of the drive mechanism mechanisms using distal end caps A61B5/150183, mechanisms at the piercing element carrier proximal end A61B5/150198
• CPC Class Codes: A61B 5/150305 Packages specially adapted for piercing devices or blood sampling devices kits for diabetes A61M5/003; packaging in general B65D
• 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 5/150847 Communication to or from blood sampling device transmitting measured data A61B5/0002
• 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 device is adapted for use in firing a lancet into the skin of a patient to acquire a blood sample and, subsequent thereto, calculating and displaying the concentration of glucose in the acquired sample. In one embodiment, the device comprises a lancet and a torsion spring coupled to the lancet through a lancet holder. The torsion spring includes inner, middle and outer rings which are concentrically configured, a plurality of activation spring arms which connect the middle and outer rings and a plurality of return spring arms which connect the inner and middle rings. In use, the plurality of activation and return spring arms can be independently transformed between energized and de-energized states using a single, button-shaped mechanism. Rotation of the mechanism is used to energize the activation and return spring arms. With the return spring arms maintained in their energized state, depression of the mechanism transforms the activation spring arms from their energized state to their de-energized state which drives the lancet from a retracted position to an extended position. Once the activation spring arms reach their de-energized state, the return spring arms transform from their energized state to their de-energized state which pulls the lancet back from its extended position to its retracted position.

Claims

1. A device comprising:

a housing comprising a base shaped to define an interior cavity, the interior cavity comprising a first compartment comprising a first opening in a bottom end of said base and in communication with said interior cavity, and a second compartment comprising a second opening in a top end of said base and comprising a slot which is in communication with said interior cavity,

the first compartment comprising a first set of components adapted to lance the skin of a subject through the first opening, said first set of components being at least partially disposed within the interior cavity of said base,

the second compartment comprising a second set of components adapted to receive a test strip and analyze the concentration of an analyte in an acquired blood sample through the second opening, and

a cover mounted to said base,

wherein the first opening and the second opening are disposed at different locations on the housing.

2. The device of claim 1 wherein said second set of components are at least partially disposed within the interior cavity for said base.

3. The device of claim 1 wherein said base includes a front surface, a back surface, a top end and a bottom end.

4. The device of claim 3 wherein said base is shaped to include a door which is adapted to pivot relative to the remainder of said front surface to provide access to said first set of components.

5. The device of claim 1 wherein said cover is shaped to include a holder which is adapted to releasably retain a lancet.

6. The device of claim 1 wherein said cover is shaped to include a clip which is adapted to releasably retain a test strip.

7. The device of claim 1 wherein said first set of components comprises, (a) a spring, and (b) a lancet having a sharpened tip, said lancet being coupled to said spring, said lancet being adapted for movement between a retracted position in which the sharpened tip of said lancet is positioned within the interior cavity of said housing and an extended position in which the sharpened tip of said lancet is positioned outside of the interior cavity of said housing.

8. The device of claim 7 wherein said second set of components is adapted for use with a test strip which includes an enzyme, said test strip being adapted to receive a portion of the blood sample, said test strip generating an electrical signal in response to the reaction between the portion of the blood sample and the enzyme.

9. The device of claim 8 wherein said second set of components comprises, (a) a data communication device for receiving the electrical signal generated from the test strip, (b) a processing circuit in electrical connection with said data communication device for calculating the concentration of an analyte in the blood sample based upon the electrical signal, and (c) a display for indicating the calculated concentration of the analyte in the blood sample.

10. The device of claim 9 wherein said data communication device is in the form of a test port.

11. The device of claim 1, wherein the cover is pivotally mounted to said base about a hinge.

12. The device of claim 1, wherein the second set of components comprises a test strip.

13. The device of claim 1, wherein the cover encloses the first opening when the cover is disposed in closed position.