Retractable phlebotomy needle
US5613500A · kind A · utility
27Cited by
12References
8Claims
0Family size
Inventor
Key dates
| Filing date | Feb 21, 1995 |
| Grant date | Mar 25, 1997 |
| Priority date | — |
| Expiry date | Feb 21, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multi-sample blood collection needle device is provided with safety features that minimize the possibility of an accidental needle-stick. The device includes a rigid shroud that secures a stationary rear hollow needle,and a forward needle telescopically mounted upon the rear needle. A coil spring causes the forward needle to retract rearwardly upon the stationary rear needle, thereby disposing the point of the forward needle safely within the shroud.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.