Modified lancet carrier for single-use lancet sensor assembly

• US 8,758,267 B2
• Filed: 03/17/2009
• Issued: 06/24/2014
• Est. Priority Date: 03/17/2009
• Status: Active Grant

• Current Assignee: Nova Biomedical Corporation (Nova Chemicals)
• Original Assignee: Nova Biomedical Corporation (Nova Chemicals)
• Inventors: Fowler, James, Daggett, Robert
• Primary Examiner(s): DOUGHERTY, SEAN PATRICK
• Application Number:
  US12/405,688
• Publication Number:
  US 20100241030A1
• Time in Patent Office: 1,925 Days
• Field of Search: 600/573, 600/583, 606/181, 606/182
• 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 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150213 Venting means
• 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 5/150358 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 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• 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 5/150557 Protectors removed by bending
• 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 5/150732 Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube,
• CPC Class Codes: A61B 5/150778 having complementary physical shapes for indexing or registration purposes
• CPC Class Codes: A61B 5/150916 by blocking components, e.g. piston, driving device or fluid passageway
• 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 5/15142 Devices intended for single use, i.e. disposable
• CPC Class Codes: A61B 5/15144 comprising driving means, e.g. a spring, for retracting the piercing unit into the housing
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood

Abstract

A lancet carrier for an integrated lancet sensor assembly incorporating a lance cover includes an elongated body with a bottom, an open top, a body open end and a body closed end, a lancet-receiving recess with a recess bottom surface, the recess extending between the open end and the closed end, and a trough-forming member forming a trough with a trough open end in communication with the body open end, the trough-forming member longitudinally extending a predefined distance along the bottom from the body open end, the trough replacing a portion of the recess bottom surface at the body open end.

Claims

1. A lancet carrier for an integrated lancet sensor cartridge incorporating a lance cover, the lancet carrier comprising:

an elongated body with a bottom, an open top, a body open end and a body closed end;

a lancet-receiving recess with a recess bottom surface, the recess extending between the body open end and the body closed end; and

a trough-forming member forming a trough with a trough wall, a trough open end in communication with the body open end and a trough closed end transverse to the trough wall, the trough closed end directly connected to the bottom of the elongated body, the trough-forming member longitudinally extending continuously a predefined distance along the bottom from the body open end and terminating in a transverse wall at the trough closed end and below the bottom, the trough replacing a portion of the recess bottom surface at the body open end wherein the lancet-receiving recess is stationary relative to the trough-forming member.

2. The lancet carrier of claim 1 wherein the trough is semi-circular.

3. The lancet carrier of claim 1 further comprising a plurality of transverse ridges and valleys formed in an outside surface of a side of the lancet carrier adjacent the body open end.

4. The lancet carrier of claim 1 further comprising an external bottom rib connected to the trough-forming member and extending longitudinally along a major portion of an outside bottom surface of the lancet carrier, and a carrier retaining notch formed laterally in the external bottom rib and having a carrier locking surface transverse to the longitudinal axis of the external bottom rib.

5. The lancet carrier of claim 1 further comprising an aperture formed in the bottom adjacent the body closed end and configured to expose one or more electrical connector pads of a sensor strip disposed on or combined with the lancet carrier.

6. A lancet carrier for an integrated lancet sensor cartridge, the lancet carrier comprising:

an elongated body with a bottom, an open top, a body open end and a body closed end;

a lancet-receiving recess with a recess bottom surface, the recess extending between the body open end and the body closed end; and

an external bottom rib directly connected to and centered on the bottom of elongated body and extending longitudinally along and parallel to a major portion of an outside bottom surface of the lancet carrier, and a carrier retaining notch formed laterally in the external bottom rib and having a carrier locking surface transverse to the longitudinal axis of the external bottom rib, the carrier locking surface engageable with a cartridge lock of a meter to prevent longitudinal movement of the lancet carrier when a lancet of the integrated lancet sensor cartridge is operated.

7. The lancet carrier of claim 6 further comprising a plurality of transverse ridges and valleys formed in an outside surface of a side of the lancet carrier adjacent the body open end.

8. The lancet carrier of claim 6 further comprising a trough-forming member forming a trough with a trough wall, a trough open end in communication with the body open end and a trough closed end transverse to the trough wall wherein the trough closed end directly connects to the bottom of the elongated body, the trough-forming member longitudinally extending a predefined distance along the bottom from the body open end and terminating in a transverse wall at the trough closed end below the bottom, the trough replacing a portion of the recess bottom surface at the body open end wherein the lancet-receiving recess is stationary relative to the trough-forming member.

9. The lancet carrier of claim 8 wherein the trough is semi-circular.

10. The lancet carrier of claim 6 further comprising an aperture formed in the bottom adjacent the body closed end that is opposite the body open end and configured to expose one or more electrical connector pads of a sensor strip disposed on or combined with the lancet carrier.

11. A method of reducing damage to a sensor in an integrated lancet sensor cartridge having a lancet carrier with an elongated recess containing a lancet, the method comprising:

forming a lancet carrier having a trough-forming member with a trough wall, a trough open end and a trough closed end transverse to the trough wall, the trough closed end directly connected to a bottom of the lancet carrier, wherein the trough-forming member longitudinally extends continuously a predefined distance along a bottom of the lancet carrier from a carrier open end and terminating in a transverse wall at the trough closed end and below the bottom wherein a trough formed by the trough-forming member replaces a portion of a bottom surface of the recess adjacent the open end and wherein the elongated recess is stationary relative to the trough-forming member.