Needle devices for medical use
US5611809A · kind A · utility
238Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1995 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Nov 6, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/15144
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A skin pricker has a barrel (1) housing a lancet (3) which is urged rearwardly by a spring (4 ). A plunger (2) can move the lancet (3) against the spring (4) to project the lancet's needle tip or tips (18) from the forward end of the barrel (1). The plunger (2) presses on the rear of the lancet (3) through a firing pin (16) integrally formed with the plunger and connected to it by a thin web (17). Increased pressure after needle tip projection shears the web and the lancet (3) is free to be returned by the spring (4), withdrawing the needle tip or tips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.