| US 7,510,564 B2 | ||
| Lancing device | ||
| Chad Harold Mace, Hudson, N.H. (US) | ||
| Assigned to Abbott Diabetes Care Inc., Alameda, Calif. (US) | ||
| Filed on Jun. 27, 2003, as Appl. No. 10/607,957. | ||
| Prior Publication US 2004/0267300 A1, Dec. 30, 2004 | ||
| Int. Cl. A61B 17/32 (2006.01) | ||
| U.S. Cl. 606—181 | 39 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,
(i) a closed inner ring,
(ii) a closed middle ring concentrically configured around said inner ring,
(iii) a closed 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,
wherein each of said first and second spring arms is independently transformable between an energized state and a de-energized
state.
|