Method and Apparatus for a Single Handed Squeeze Lancet

• US 20110040316A1
• Filed: 08/17/2010
• Published: 02/17/2011
• Est. Priority Date: 08/17/2009
• Status: Abandoned Application

• Current Assignee: Sanford Research/USD
• Original Assignee: Sanford Research/USD
• Inventors: Harris, William S., Pottala, James V.
• Application Number:
  US12/857,694
• Publication Number:
  US 20110040316A1
• Time in Patent Office: Days
• US Class Current: 606/182
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150442 Blade-like piercing elements, e.g. blades, cutters, knives, for cutting the skin
• CPC Class Codes: A61B 5/150564 Protectors removed by pulling or pushing
• 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 5/150801 Means for facilitating use, e.g. by people with impaired vision; means for indicating when used correctly or incorrectly; means for alarming
• CPC Class Codes: A61B 5/150916 by blocking components, e.g. piston, driving device or fluid passageway
• CPC Class Codes: A61B 5/15111 Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
• 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

Abstract

A single handed squeeze lancet and methods for its use, where the single handed squeeze lancet comprises (a) a lancet, (b) a lancet-holder, (c) an internal housing for receiving and guiding the lancet-holder, (d) an external housing for receiving and guiding the internal housing, (e) a thumb-frame coupled to the external housing, and (f) a thumb-spring coupled to the thumb-frame and coupled to the lancet-holder. The device may further comprise a base-stand coupled to the thumb-frame.

Claims

1. A single handed squeeze lancet apparatus comprising:

a lancet;

a lancet-holder;

an internal housing for receiving and guiding the lancet-holder;

an external housing for receiving and guiding the internal housing;

a thumb-frame coupled to the external housing; and

a thumb-spring coupled to the thumb-frame and coupled to the lancet-holder.

2. The apparatus of claim 1, wherein the lancet-holder comprises a housing, at least two guide pins, and at least two detents.

3. The apparatus of claim 2, wherein the internal housing defines channels for receiving the lancet-holder guide pins.

4. The apparatus of claim 1, wherein the lancet-holder further comprises a pull-tab.

5. The apparatus of claim 1, wherein at least a portion of the lancet holder'"'"'s proximal end extends between either a front and a back wall of the internal housing or between guiding ribs.

6. The apparatus of claim 1, wherein the internal housing includes tongues on opposing sidewalls, wherein each internal-housing tongue includes an interference nub on a free end.

7. The apparatus of claim 6, wherein the interference nubs interface with the external housing such that the internal-housing tongues are biased inward.

8. The apparatus of claim 6, wherein the interference nubs interface with the lancet-holder detents when the internal-housing tongues are biased inward.

9. The apparatus of claim 1, wherein the external housing defines a release-window on each opposing sidewall.

10. The apparatus of claim 1, wherein a proximal end of the internal housing defines an indentation for receiving a user'"'"'s digit.

11. The apparatus of claim 1, wherein the internal housing and external housing each taper from the distal end to the proximal end.

12. The apparatus of claim 1, wherein the internal housing and external housing substantially mate such that the internal housing is prevented from rotating within the external housing and such that the proximal end of the internal housing is capable of protruding from the proximal end of the external housing.

13. The apparatus of claim 1, wherein the thumb-frame is coupled to two spaced-apart tongues, wherein each thumb-frame tongue has a detent at the free end, and wherein the external housing defines openings on opposing sidewalls.

14. The apparatus of claim 1, wherein the thumb-frame is in the form of a base, whereby the single handed squeeze lancet is employed between a digit and a surface.

15. The apparatus of claim 1, further comprising a base-stand.

16. The apparatus of claim 15, wherein the base-stand is removably coupled to one of the thumb-frame or the external housing.

17. The apparatus of claim 15, wherein the base-stand is coupled to the thumb-frame such that the base-stand and thumb-frame together form a base, whereby the single handed squeeze lancet is employed between a digit and a surface.

18. The apparatus of claim 15, wherein the thumb-frame defines a detent for receiving a corresponding thin-walled section of the base-stand.

19. The apparatus of claim 1, wherein the internal housing defines one or more depth-control ribs adjacent to an opening at the proximal end of the internal housing.

20. A method for lancing a digit using the single handed squeeze lancet apparatus of claim 1, the method comprising:

placing a digit adjacent to a proximal end of the internal housing; and

applying force to the proximal end of the internal housing.

21. The method of claim 20 further comprising:

placing a digit from one of the same hand or the other hand adjacent to the thumb-frame; and

applying force to the thumb-frame.

22. The method of claim 20 further comprising:

providing the thumb-frame in the form of a base; and

placing the thumb-frame against a surface.

23. The method of claim 20 further comprising:

providing a base-stand;

removing the base-stand from a coupling to one of the thumb-frame or the external housing;

coupling the base stand to one of the thumb-frame or the external housing to form a base; and

placing the base against a surface.

24. The method of claim 20, further comprising the step of removing a covering from the lancet-holder to expose the lancet.

25. The method of claim 20, wherein the step of applying force causes the internal housing to advance distally within the external housing, the thumb-spring to preload until interference nubs on the free ends of inwardly biased tongues on opposing walls of the internal housing enter release-windows defined by the external housing, the lancet to advance proximally until it lances the digit adjacent to the proximal end of the internal housing, and the internal housing to continue to advance until the interference nubs travel the length of the release-windows.

26. The method of claim 20, wherein the step of applying force causes the internal housing to advance distally within the external housing, the thumb-spring to preload until interference nubs on the free ends of inwardly biased tongues on opposing walls of the internal housing snap-fit into release-windows defined by the external housing, and the lancet to advance proximally until it contacts depth-control ribs to lance the digit adjacent to the proximal end of the internal housing.

27. The method of claim 20, further comprising the step of retaining the lancet inside the internal housing after the digit is lanced.