Needle for multiple vacuum blood sample devices
US4844089A · kind A · utility
20Cited by
7References
6Claims
0Family size
Inventor
Key dates
| Filing date | Jan 14, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Jan 14, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/342
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved needle for multiple vacuum blood sample devices, consisting in two opposed, coplanar needles connected by an oblique member and protected by a rigid sheath such that the relevant test tube holder is not coaxial to the needle to be introduced in the vein; the second needle is angled with respect to the geometrical axis of the test tube so that the outflowing blood strikes only against only the side wall of the test tube, and with the minimum angle of incidence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.