Perforating needle for flask with septum
US10406070B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2016 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Nov 25, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J1/2096
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A perforating needle intended to be inserted into a flask through a stopper or septum to inject and remove a fluid includes a pointed end for piercing the stopper and a cylindrical body. The central body includes a central channel through which the fluid may enter and leave the flask and a side wall having at least one lateral orifice. The orifice is in fluid communication with the central channel. A lower end of the orifice is, in use, essentially level with an inner face of the stopper. The orifice is extended toward the pointed end by at least one slot, a shape of which is essentially tangential to a flow of the fluid so as to channel the fluid along an axis of the needle. The side wall includes at least two diametrically opposite lateral orifices arranged on either side of a central island.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.