LANCING DEVICE WITH MOVING PIVOT DEPTH ADJUST

• US 20130274777A1
• Filed: 04/10/2013
• Published: 10/17/2013
• Est. Priority Date: 04/11/2012
• Status: Active Grant

• Current Assignee: Facet Technologies LLC
• Original Assignee: Facet Technologies LLC
• Inventors: TRISSEL, John A.
• Granted Patent: US 10,085,681 B2
• Time in Patent Office: Days
• US Class Current: 606/172
• 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 5/150198 Depth adjustment mechanism at the proximal end of the carrier of the piercing element
• 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 5/15113 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 5/15126 Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
• 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

Abstract

A depth-control mechanism for selectively-adjusting a lancing stroke depth of a lancet carrier. The depth-control mechanism includes a positioning tab that is configured to be repositioned along an axis that is orthogonal to the lancing stroke axis of the lancet carrier. The depth-adjustment mechanism also includes a tether that is pivotally coupled between the positioning tab and the lancet carrier. The positioning tab is configured to manipulate a pivot axis of the tether to adjust the lancing stroke length of the lancet carrier.

Claims

1. A depth-control mechanism for selectively-adjusting a lancing stroke depth of a lancet carrier, the depth-control mechanism comprising:

a positioning tab configured to be repositioned along an axis orthogonal to the lancing stroke axis of the lancet carrier, and

a tether pivotally coupled between the positioning tab and the lancet carrier, the positioning tab is configured to manipulate an adjustable pivot axis of the tether to adjust the lancing stroke length of the lancet carrier.

2. The depth-control mechanism of claim 1, wherein the positioning tab is configured to be slidably repositioned along an axis that is perpendicular to the lancing stroke axis of the lancet carrier.

3. The depth-control mechanism of claim 1, wherein the tether comprises a pivot link comprising an elongated channel with an elongated axis extending between a minimum depth end and a maximum depth end.

4. The depth-control mechanism of claim 3, wherein the positioning tab is slidably secured in the pivot link elongated channel to move between the minimum depth end and the maximum depth end.

5. The depth-control mechanism of claim 3, wherein the elongated channel elongated axis is configured to pivot to at least a two distinct axial angles with respect to the lancing stroke axis.

6. The depth-control mechanism of claim 5, wherein the positioning tab comprises a pivot post, the pivot link elongated channel configured to pivot to the at least two distinct axial angles about the pivot post.

7. The depth-control mechanism of claim 3, wherein the tether comprises an arm with a distal end secured to the lancet carrier and a proximal end pivotally secured to the pivot link.

8. The depth-control mechanism of claim 7, wherein the pivot link comprises a pivot aperture at the maximum depth end, and the arm comprises a pivot insert at the proximal end, the pivot insert pivotally inserted through the pivot link aperture.

9. The depth-control mechanism of claim 8, wherein the pivot link is configured to pivot around the arm pivot insert when the positioning tab is slidably repositioned with respect to the lancing stroke axis of the lancet carrier.

10. A depth-control mechanism for a lancing device comprising a drive-mechanism and a lancet carrier translationally secured along a lancing stroke axis within a housing comprising an engagement post and a proximal elongated aperture, the depth-control mechanism comprising,

a repositioning post slidably secured along the housing proximal elongated aperture, the repositioning post being distance-adjustable relative to the engagement post;

and

a link coupling the repositioning post and the lancet carrier, the link comprising an elongate slot therein to slidably receive the repositioning post therein;

wherein the distance between the engagement post and the repositioning post is adjustable to control the penetration depth of the lancet carrier lancing stroke.

11. The depth-control mechanism of claim 10, wherein the link elongate slot comprises a longitudinal axis extending between a minimum-depth end and a maximum-depth end, the elongate slot longitudinal axis configured to pivot to at least two distinct angles with respect to the lancing stroke axis.

12. The depth-control mechanism of claim 11, wherein the link comprises a pivot linkage comprising a pivot end and a free end, the pivot end comprising a pivot aperture and the pivot linkage comprising the link elongated slot extending between the pivot aperture and the free end.

13. The depth-control mechanism of claim 12, wherein the link comprises a pivot post pivotally inserted through the pivot linkage aperture.

14. The depth-control mechanism of claim 12, wherein the pivot linkage is configured pivotally engage the housing engagement post to define the lancing stroke depth.

15. The depth-control mechanism of claim 10, wherein the distance between the repositioning post and the engagement post is inversely related to the lancing stroke depth.

16. A lancing device for carrying a lancet along a lancing stroke defining an axial direction, the lancing device comprising:

a housing;

a lancet carrier translationally mounted within the housing;

a positioning slider translationally mounted with respect to the housing for movement in a transverse direction generally orthogonal to the lancing stroke axial direction; and

a pivotal linkage coupled between the positioning slider and the lancet carrier, whereby adjustment of the positioning slider varies the length of the lancing stroke.

17. The lancing device of claim 16, wherein the pivotal linkage comprises a receiver to receive the lancet carrier.

18. The lancing device of claim 16, wherein the positioning slider comprises a repositioning post that slidably secures the pivotal linkage.

19. The lancing device of claim 18, wherein the pivotal linkage comprises a link comprising an elongated channel extending between a minimum-depth end and a maximum-depth end, the positioning slider pivot post slidably inserts within the elongated channel.

20. The lancing device of claim 18, wherein the pivotal linkage comprises:

a link with a pivot aperture; and

a coupling comprising a pivot post pivotally inserted through the link pivot aperture.