Lancet device
US5540709A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1994 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Nov 16, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/15117
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lancet device includes a body within which is slidably located a trigger and fixedly located a base. The base contains, in an armed position, the lance with its needle and a spring affixed to the lance. The trigger includes a mechanism to release the lance during use. In a preferred embodiment, the lancet device of the present invention is self-activated by the finger (or other body part) to be pierced. Depression of the trigger with the finger releases the lance and the spring so that the needle protrudes through an orifice in the end of the trigger and pierces the tissue. Because the spring is held in a pre-armed position, release of the spring is consistent, and reproducibility of incision is well controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.