Pre-slit injection site and tapered cannula
US6605076B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1996 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/197
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pre-slit injection site includes a housing with a flow path therethrough. A first end of the housing carries a pre-slit septum. One form of a blunt cannula, usable with the injection site, carries a locking member. When the pre-slit injection site slidably receives the blunt cannula, the locking member latches to the injection site and creates a mechanically coupled unit. Another form of the cannula includes a tube having a tapered distal end region and having elongate discharge slots for reducing contact surface area and for directing the flow laterally out of the cannula. The cannula may also include a rounded lead post, an annular barb, and axially oriented grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.