Lancing device
A lancing device having a domed structure that can be depressed by application of a force by a user's finger so as to expose the tip of a needle. The domed structure is configured to move from a non-depressed state to a depressed state in a manner that allows for the piercing the users finger. The domed structure may then recoil to its original, non-depressed position upon the user ceasing to apply the force.
1. A lancet device comprising:
a base having first external threads, a first opening and a second opening;
a lancet comprising a needle having a tip and having a position relative to the base, the lancet received in the base through the first opening and attached to the base via second threads at the first opening allowing the lancet to be adjustably positioned within the base, the tip of the needle protruding through the second opening; and
a flexible member having an aperture, the flexible member positioned over the second opening;
wherein the flexible member is arranged relative to the needle so that when a sufficient force is applied to the flexible member, the flexible member transitions from a first configuration to a second configuration, and wherein the tip of the needle protrudes from the aperture of the flexible member while the flexible member is in the second configuration.
2. The lancet device of claim 1 , wherein the position of the needle relative to the base does not change during the transition of the flexible member from the first configuration to the second configuration.
3. The lancet device of claim 1 , wherein the transition from the first configuration to the second configuration comprises deforming the flexible member.
4. The lancet device of claim 1 , wherein when the force ceases to be applied, the flexible member automatically returns to the first configuration.
5. The lancet device of claim 1 , wherein the flexible member comprises a middle portion and an outer portion, the outer portion is attached to the base, and the force is applied to the middle portion of the flexible member.
6. The lancet device of claim 1 , wherein a user's finger applies the force to the flexible member, and wherein the protrusion of the tip through the aperture of the flexible member pierces the user's finger so as to draw blood.
7. The lancet device of claim 1 , further comprising:
a main body; and
an endcap having an endcap opening and extending from the main body;
wherein the base is attached to and received within the endcap via the first external threads so that the flexible member is exposed through the endcap opening.
8. The lancet device of claim 7 , wherein the first external threads allow the base and the lancet to be adjustably positioned together within the endcap.
9. The lancet device of claim 7 , wherein the main body comprises an upper portion and a lower portion mated to the upper portion.
10. The lancet device of claim 7 , wherein the endcap comprises endcap shoulders mounted to the main body.
11. The lancet device of claim 10 , wherein the endcap shoulders include a tab and a surface depression to assist with removal of the endcap from the main body.
12. The lancet device of claim 1 , wherein the flexible member comprises a domed surface, and the transition from the first configuration to the second configuration includes deforming the domed surface.
13. The lancet device of claim 1 , wherein the flexible member comprises a circular domed surface, and the transition from the first configuration to the second configuration includes deforming the circular domed surface.
14. The lancet device of claim 1 , wherein the flexible member comprises a convex structure.
15. The lancet device of claim 1 , wherein the flexible member is arranged to form a cavity in which the needle resides.
16. The lancet device of claim 1 , wherein the base has an outer top surface and an inner top surface, the outer top surface offset from the inner top surface.
17. The lancet device of claim 16 , wherein the flexible member is attached to the outer top surface.
18. The lancet device of claim 1 , wherein the first opening is larger than the second opening, and the second opening is sized to receive only the needle there through.
19. A lancet device comprising:
a hollow base having a first opening at one end and a second opening at a second opposite end;
a lancet comprising a needle having a tip, the lancet received in the base through the first opening and attached to the base via threads at the first opening allowing the lancet to be adjustably positioned within the base, the tip of the needle protruding through the second opening; and
a flexible member having an aperture positioned over the second opening, wherein the flexible member is configured to transition from a first configuration to a second configuration, and the tip of the needle protrudes through the aperture while the flexible member is in the second configuration.
20. The lancet device of claim 19 further comprising an endcap having an endcap opening, wherein the hollow base comprises external threads and is received within and attached to the endcap via the external threads, wherein the flexible member is exposed through the endcap opening.