Lancing device with side activated charge and eject mechanisms

• US 10,456,069 B2
• Filed: 04/10/2013
• Issued: 10/29/2019
• Est. Priority Date: 04/12/2012
• Status: Active Grant

• Current Assignee: Facet Technologies LLC
• Original Assignee: Facet Technologies LLC
• Inventors: Trissel, John A.
• Primary Examiner(s): Aleman, Sarah W
• Assistant Examiner(s): Highland, Rachel S
• Application Number:
  US13/860,270
• Publication Number:
  US 20130274780A1
• Time in Patent Office: 2,393 Days
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• 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 5/150503 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 5/150816 by tactile feedback, e.g. vibration
• 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 5/15115 Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
• 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 5/1519 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 lancing device having a housing with a proximal end, a distal end and a longitudinal axis. The lancing device also has a lancet carrier translationally supported with respect to the housing. The lancet carrier has a proximal end and a distal end. The lancing device additionally has a charging mechanism and/or an ejection mechanism adapted to pivot into the lancing device for engaging portions of the lancet carrier to perform the same.

Claims

1. A lancing device comprising:

a housing comprising a longitudinal axis extending between a proximal end and a distal end;

a lancet carrier translationally mounted for axial movement within the housing;

a drive mechanism secured to the lancet carrier to drive the lancet carrier through a lancing stroke; and

a charging mechanism comprising;

an actuator pivotally mounted to the housing; and

an elongated arm within the housing comprising a free end and a pivot end pivotally mounted to the housing,

wherein the charging mechanism can be engaged with respect to the drive mechanism to charge the drive mechanism during pivotal movement;

wherein the actuator is configured to engage the elongated arm upon actuation;

wherein the elongated arm pivots about the pivot end in response to actuation of the actuator to retract the lancet carrier and charge the drive mechanism; and

a linkage pivotally connected to and driven by the elongated arm toward the housing distal end, the linkage being configured to engage a lancet carried within the lancet carrier and eject the lancet from the lancet carrier.

2. The lancing device of claim 1, wherein the elongated arm free end is engagable with respect to the drive mechanism to force the drive mechanism toward the housing proximal end.

3. The lancing device of claim 1, wherein the charging mechanism actuator further comprises a flange extending into the housing, the elongated arm being movably secured to the flange.

4. The lancing device of claim 3, wherein the flange comprises a slot aperture to pivotally secure the elongated arm.

5. The lancing device of claim 4, wherein the elongated arm comprises a pin extending vertically from a location between the pivot end and the free end.

6. The lancing device of claim 5, wherein the flange slot aperture pivotally receives the elongated arm pin.

7. The lancing device of claim 1, wherein the charging mechanism further comprises a biasing spring configured to bias the actuator in an unactuated position.

8. A lancing device for carrying a lancet through a lancing stroke, the lancing device comprising:

a housing comprising a longitudinal axis extending between a proximal end and a distal end;

a lancet carrier translationally mounted for axial movement within the housing; and

an ejection mechanism comprising;

an actuator pivotally mounted to the housing,

an elongate arm mounted to the actuator and extending within the housing, and

a linkage pivotally connected to and driven by the elongate arm toward the housing distal end, the linkage being configured to engage the lancet carried within the lancet carrier and eject the lancet from the lancet carrier.

9. The lancing device of claim 8, wherein the linkage is pivotally mounted to the elongate arm.

10. The lancing device of claim 9, wherein the elongate arm is fixedly mounted to the actuator and comprises a free end extending into the housing.

11. The lancing device of claim 10, wherein the linkage is pivotally mounted to the elongate arm free end.

12. The lancing device of claim 8, wherein the linkage comprises a finger that is translationally inserted into the lancet carrier to engage the lancet carried in the lancet carrier.

13. A lancing device for carrying a lancet through a lancing stroke, the lancing device comprising:

a housing comprising a longitudinal axis extending between a proximal end and a distal end;

a lancet carrier translationally mounted for axial movement within the housing;

a drive mechanism configured to drive the lancet carrier through the lancing stroke;

a charging mechanism comprising a charging actuator pivotally mounted to the housing, the charging mechanism engaged with respect to the drive mechanism to charge the drive mechanism during pivotal movement; and

an ejection mechanism comprising;

an ejection actuator mounted to the housing,

an elongate arm mounted to the ejection actuator and extending within the housing, and

a linkage pivotally connected to and driven by the elongate arm toward the housing distal end, the linkage being configured to engage the lancet carried within the lancet carrier.

14. The lancing device of claim 13, wherein the charging mechanism further comprises a biasing spring configured to bias the charging actuator in an unactuated position.

15. A lancing device for carrying a lancet through a lancing stroke, the lancing device comprising:

a housing comprising a longitudinal axis extending between a proximal end and a distal end;

a lancet carrier translationally mounted for axial movement within the housing; and

an ejection mechanism comprising;

an actuator translationally mounted to the housing, and

a linkage pivotally connected to and driven by the actuator, the linkage being configured to engage the lancet carried within the lancet carrier and eject the lancet from the lancet carrier.

16. The lancing device of claim 15, wherein the linkage comprises a finger that is translationally inserted into the lancet carrier to engage the lancet carried in the lancet carrier.

17. The lancing device of claim 15, wherein the linkage comprises an angled arm with a distal end that is engaged with respect to the lancet carried in the lancet carrier.