Syringe with integrated cannula
US9295788B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 4, 2011 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Dec 5, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3201
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A syringe assembly includes a tubular barrel having an open proximal end, a distal end, and an internal a fluid retaining chamber. A plunger is slidingly received in the chamber and is configured to draw fluid into and expel fluid from the chamber. A hollow projection extends from the distal end of the barrel and a cannula extends from the hollow projection. The cannula may have a spiked tip, a transverse orifice, and longitudinally disposed bi-lateral fluid flow channels. The cannula is adapted to penetrate the seal of a medical access point, such as a medicine vial, IV port, or catheter port. A receiving collar including one or more male threads surrounds the hollow projection and the cannula and is adapted to releasably engage a needle hub. The needle hub has an internal cavity configured to matingly receive and cover the cannula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.