Lancet device with first-drop removal

Patent metadata

Field	Value
Publication number	US-10682085-B2
Application number	US-201715657362-A
Country	US
Kind code	B2
Filing date	Jul 24, 2017
Priority date	Jul 18, 2014
Publication date	Jun 16, 2020
Grant date	Jun 16, 2020

Abstract

A medical puncturing device having a wicking element disposed on a portion of the medical puncturing device is disclosed. The wicking element allows a user to remove a first drop of blood upon puncturing the skin using the medical puncturing device. In this manner, a subsequent drop of blood can be used to test their blood to determine their blood glucose level for proper insulin dosing.

First claim

What is claimed is:

1. A lancet device comprising:
a housing comprising a forward end and a rearward end;
a lancet structure comprising a drive spring, a retraction spring separate from the drive spring, and a puncturing element, the lancet structure at least partially disposed within the housing and adapted for movement between a pre-actuated position wherein the puncturing element is retained within the housing and a puncturing position wherein at least a portion of the puncturing element extends through the forward end of the housing; and
a wicking element disposed on an exterior portion of the rearward end of the housing,
wherein the exterior portion of the rearward end of the housing defines a cavity and the wicking element is substantially disposed within the cavity,
wherein the drive spring is configured to drive the lancet structure from the pre-actuated position to the puncturing position, and
wherein the retraction spring is configured to move the lancet structure from the puncturing position in a return direction toward an interior of the housing.

2. The lancet device of claim 1 , further comprising a cap covering the cavity.

3. The lancet device of claim 1 , further comprising a door that closes the cavity.

4. The lancet device of claim 3 , wherein the door is connected to the rearward end of the housing by a hinged portion.

5. The lancet device of claim 3 , wherein the door is transitionable between a closed position and an open position.

6. The lancet device of claim 3 , wherein the door is made of a wicking material.

7. A lancet device comprising:
a housing comprising a forward end, a rearward end, and a side portion;
a lancet structure comprising a drive spring, a retraction spring separate from the drive spring, and a puncturing element, the lancet structure at least partially disposed within the housing and adapted for movement between a pre-actuated position wherein the puncturing element is retained within the housing and a puncturing position wherein at least a portion of the puncturing element extends through the forward end of the housing; and
a wicking element disposed on a portion of the side portion of the housing,
wherein the drive spring is configured to drive the lancet structure from the pre-actuated position to the puncturing position, and
wherein the retraction spring is configured to move the lancet structure from the puncturing position in a return direction toward an interior of the housing.

8. The lancet device of claim 7 , wherein a portion of the side portion of the housing defines a side cavity and the wicking element is disposed within the side cavity.

9. The lancet device of claim 8 , further comprising a door that closes the side cavity.

10. The lancet device of claim 9 , wherein the door is connected to the side portion of the housing by a hinged portion.

11. The lancet device of claim 9 , wherein the door is transitionable between a closed position and an open position.

12. The lancet device of claim 9 , wherein the door is made of a wicking material.

13. The lancet device of claim 7 , wherein the housing includes a second side portion.

14. The lancet device of claim 13 , further comprising a second wicking element disposed on a portion of the second side portion of the housing.

15. The lancet device of claim 14 , wherein a portion of the second side portion of the housing defines a second side cavity and the second wicking element is disposed within the second side cavity.

16. The lancet device of claim 15 , further comprising a second door that closes the second side cavity.

17. The lancet device of claim 16 , wherein the second door is connected to the second side portion of the housing by a second hinged portion.

18. The lancet device of claim 16 , wherein the second door is transitionable between a closed position and an open position.

19. The lancet device of claim 16 , wherein the second door is made of a wicking material.

Assignees

• Becton Dickinson Co

Inventors

• Gelfand Craig A
• Fletcher Gary D

Classifications

• A61B5/150061

  Means for enhancing collection · CPC title

• A61B5/15144

  comprising driving means, e.g. a spring, for retracting the piercing unit into the housing · CPC title

• A61B5/150022

  for capillary blood or interstitial fluid · CPC title

• A61B5/150503

  Single-ended needles (hollow piercing element tip design A61B5/150396) · CPC title

• A61B5/15045

  comprising means for capillary action · CPC title