Lancing device with decoupled lancet
US7288102B2 · kind B2 · utility
134Cited by
42References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2004 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Oct 29, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/1519
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lancing device having a low-mass, high-velocity lancet decoupled from a drive mechanism when piercing a user's skin. The drive mechanism includes a spring-driven piston that impacts the lancet on firing to propel the lancet from a retracted position towards an extended position. After impact, but before the lancet reaches the extended position, a stop limits the travel of the piston to separate the piston from the lancet. Precise guidance of the lancet minimizes lateral movement of the lancet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.