Needle with gated stylet
US8882714B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jan 25, 2010 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Jan 25, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/3295
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In accordance with preferred embodiments, a needle with gated stylet is provided that is useful for controlled fluid transfer with a patient's body. Preferably, the needle with gated stylet includes a hollow core needle providing a needle tip and at least two fluid transfer apertures with the stylet removably disposed within the needle. In an alternate embodiment, a needle providing a hollow core, an insertion tip, and a fluid transfer aperture adjacent the insertion tip and communicating with the hollow core, and a stylet disposed within the hollow core, cooperating with the fluid transfer aperture to preclude fluid flow through the fluid transfer aperture when the stylet is in a first position adjacent the insertion tip and promote fluid flow through the transfer aperture when the stylet is in a second position adjacent the insertion tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.