Syringe for medical interventions and kit for reconstituting extemporaneous substances
US7896849B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2005 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Sep 7, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J1/2075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A syringe (12) having: a syringe body (18) in which a passage (28) for the circulation of fluid is defined, the circulatory passage (28) being extended by a main element (20) for fluidic connection to a complementary volume (13); and a movable piston (36) inside the syringe body (18), defining, with the syringe body (18), a chamber for the containment of fluid, opening out through the circulatory passage (28). The syringe body (18) defines a closed space in which the piston (36) is movably mounted. The piston (36) also defines in the closed space an auxiliary return chamber. The syringe body (18) defines a return passage (48) opening out into the auxiliary return chamber (46). The return passage (48) is extended by an auxiliary element (50) for connection to the complementary volume (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.