Modified lancet carrier for single-use lancet sensor assembly

• US 20100241030A1
• Filed: 03/17/2009
• Published: 09/23/2010
• 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
• Granted Patent: US 8,758,267 B2
• Time in Patent Office: Days
• 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 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 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 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 closed end.

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 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.

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 open end.

8. The lancet carrier of claim 6 further comprising 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 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.

9. The lancet carrier of claim 6 wherein the trough is semi-circular.

10. The lancet carrier of claim 6 further comprising an aperture formed in the bottom adjacent the closed end that is opposite the specimen lancing end.

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 open end wherein the trough-forming member longitudinally extends a predefined distance along a bottom of the lancet carrier from a carrier open 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 lancet-receiving recess is stationary relative to the trough-forming member.