LANCET DEVICE WITH DEPTH ADJUSTMENT AND LANCET REMOVAL SYSTEM AND METHOD

• US 20100274273A1
• Filed: 06/18/2008
• Published: 10/28/2010
• Est. Priority Date: 06/19/2007
• Status: Active Grant

• Current Assignee: Stat Medical Devices Incorporated
• Original Assignee: Stat Medical Devices Incorporated
• Inventors: Schraga, Steven, Schwartz, Brian
• Granted Patent: US 9,179,867 B2
• Time in Patent Office: Days
• US Class Current: 606/172
• CPC Class Codes: A61B 5/1405 Devices for taking blood samples devices for taking samples of other body liquids A61B10/0045
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• CPC Class Codes: A61B 5/1444 Safety means, e.g. for locking cannula removing or disposing of used needles or syringes A61M5/3205
• 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 5/150824 by visual feedback
• 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 5/15186 Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit
• CPC Class Codes: A61B 5/15192 comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
• 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

Lancet device includes a housing, a removable front cap mounted to the housing, a lancet holding member, and a trigger. A system is utilized for placing the lancet device in a trigger-set or armed position. A depth adjustment system includes a member that is at least partially rotatably mounted and that has an axis of rotation arranged substantially perpendicular to a center axis of the lancet holding member. An ejection system is utilized for at least one of preventing axial movement of the lancet holding member and removing or ejecting a lancet from the lancet holding member.

Claims

1. A lancet device comprising:

a housing;

a removable front cap mounted to the housing;

a lancet holding member;

a trigger;

a system for placing the lancet device in a trigger-set or armed position;

a depth adjustment system comprising a member that is at least partially rotatably mounted and that has an axis of rotation arranged substantially perpendicular to a center axis of the lancet holding member; and

an ejection system for at least one of;

preventing axial movement of the lancet holding member; and

removing or ejecting a lancet from the lancet holding member.

2. The lancet device of claim 1, wherein the ejection system comprises a manually activated slide button.

3. The lancet device of claim 1, wherein the ejection system each of prevents axial movement of the lancet holding member and removes or ejects the lancet from the lancet holding member.

4. The lancet device of claim 1, wherein the member that is at least partially rotatably mounted comprises a thumbwheel having plural cam or stop surfaces.

5. The lancet device of claim 1, wherein the member that is at least partially rotatably mounted comprises a thumbwheel having indicia.

6. The lancet device of claim 1, wherein the member that is at least partially rotatably mounted comprises a thumbwheel having indicia which is visible through an opening located in the housing.

7. The lancet device of claim 1, wherein the member that is at least partially rotatably mounted comprises a thumbwheel having portions which can be gripped by a user from outside of the housing.

8. The lancet device of claim 1, wherein the member that is at least partially rotatably mounted comprises a thumbwheel having oppositely arranged portions which project outside of the housing.

9. The lancet device of claim 1, further comprising a first spring for causing movement of the lancet holding member towards a puncturing position and a second for causing a back cap to move towards an initial position from a retracted position.

10. The lancet device of claim 1, further comprising a first spring for causing movement of the lancet holding member towards a puncturing position, a second for causing a back cap to move towards an initial position from a retracted position, and a third spring for causing a slide member of the ejection system to move towards an initial position from an extended position.

11. A method of puncturing a surface of skin using the lancet device of claim 1, the method comprising:

arranging the lancet device adjacent against a user'"'"'s skin; and

triggering the lancet device so that a lancet is caused to penetrate the user'"'"'s skin.

12. A lancet device comprising:

a housing;

a removable front cap mounted to the housing;

a lancet holding member having a front end adapted to receive therein a removable lancet;

a trigger;

a system for placing the lancet device in a trigger-set or armed position;

a depth adjustment system comprising a member having plural cam surfaces; and

an ejection system for at least one of;

preventing axial movement of the lancet holding member;

removing or ejecting a lancet from the lancet holding member; and

removing or ejecting the front cap.

13. The lancet device of claim 12, wherein the ejection system comprises a manually activated slide button.

14. The lancet device of claim 12, wherein the ejection system each of prevents axial movement of the lancet holding member, removes or ejects the lancet from the lancet holding member, and removes or ejects the front cap.

15. The lancet device of claim 12, wherein the member is at least partially rotatably mounted and comprises a thumbwheel.

16. The lancet device of claim 15, wherein the thumbwheel comprises indicia.

17. The lancet device of claim 16, wherein the indicia is visible through an opening located in the housing.

18. The lancet device of claim 15, wherein the thumbwheel one of has portions which can be gripped by a user from outside of the housing, and oppositely arranged portions which project outside of the housing.

19. The lancet device of claim 12, further comprising a first spring for causing movement of the lancet holding member towards a puncturing position and a second for causing a back cap to move towards an initial position from a retracted position.

20. The lancet device of claim 12, further comprising a first spring for causing movement of the lancet holding member towards a puncturing position, a second for causing a back cap to move towards an initial position from a retracted position, and a third spring for causing a slide member of the ejection system to move towards an initial position from an extended position.

21. A method of puncturing a surface of skin using the lancet device of claim 12, the method comprising:

arranging the lancet device adjacent against a user'"'"'s skin; and

triggering the lancet device so that a lancet is caused to penetrate the user'"'"'s skin.

22. A lancet device comprising:

a housing having an ergonomic shape;

a removable front cap mounted to the housing;

a movably mounted lancet holding member having a front end adapted to receive therein a removable lancet;

a trigger arranged on a side wall of the hosing;

a system for placing the lancet device in a trigger-set or armed position;

a depth adjustment system comprising a member having plural cam surfaces;

a locking member configured to prevent axial movement of the lancet holding member; and

an ejection system configured to remove or eject a lancet from the lancet holding member.