Lancing device
First Claim
1. A lancing device comprising:
- (a) a lancet, said lancet having a sharpened tip, and (b) a torsion spring coupled to said lancet, said torsion spring comprising first and second concentric rings which are connected by a spring arm.
2 Assignments
0 Petitions
Accused Products
Abstract
A lancing device is adapted for use in firing a lancet into the skin of a patient to acquire a blood sample and, subsequent thereto, calculating and displaying the concentration of glucose in the acquired sample. In one embodiment, the device comprises a lancet and a torsion spring coupled to the lancet through a lancet holder. The torsion spring includes inner, middle and outer rings which are concentrically configured, a plurality of activation spring arms which connect the middle and outer rings and a plurality of return spring arms which connect the inner and middle rings. In use, the plurality of activation and return spring arms can be independently transformed between energized and de-energized states using a single, button-shaped mechanism. Rotation of the mechanism is used to energize the activation and return spring arms. With the return spring arms maintained in their energized state, depression of the mechanism transforms the activation spring arms from their energized state to their de-energized state which drives the lancet from a retracted position to an extended position. Once the activation spring arms reach their de-energized state, the return spring arms transform from their energized state to their de-energized state which pulls the lancet back from its extended position to its retracted position.
-
Citations
37 Claims
-
1. A lancing device comprising:
-
(a) a lancet, said lancet having a sharpened tip, and (b) a torsion spring coupled to said lancet, said torsion spring comprising first and second concentric rings which are connected by a spring arm. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A lancing device comprising:
-
(a) a lancet, said lancet having a sharpened tip, and (b) a torsion spring coupled to said lancet said torsion spring comprising, (i) an inner ring, (ii) a middle ring concentrically configured around said inner ring, (iii) an outer ring concentrically configured around said middle ring, (iv) a first spring arm connecting said middle ring to said outer ring, and (v) a second spring arm connecting said inner ring to said middle ring. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A lancing device comprising:
-
(a) a lancet, said lancet having a sharpened tip, (b) a torsion spring coupled to said lancet, said torsion spring comprising a spring arm which is transformable between an energized state and a de-energized state, and (c) a mechanism coupled to said torsion spring, (d) wherein transformation of the spring arm of said torsion spring from its de-energized state to its energized state is effected through the manual activation of said mechanism. - View Dependent Claims (22, 23, 24, 25)
-
-
26. A device comprising:
-
(a) a base shaped to define an interior cavity, (b) a first set of components adapted to acquire a blood sample, said first set of components being at least partially disposed within the interior cavity of said base, (c) a second set of components adapted to analyze the concentration of an analyte in the acquired blood sample, and (d) a cover pivotally mounted to said base about a hinge. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
Specification