Needle shield converting to a needleless needle
US6685677B2 · kind B2 · utility
9Cited by
14References
18Claims
0Family size
Inventor
Key dates
| Filing date | Aug 7, 2001 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Aug 7, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/32
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle assembly withdraws medicine from a vial having a rubber septum and injects the medicine into a port in a patient while not endangering the caregiver with an accidental stick with a contaminated used needle. The needle assembly includes a sharp hollow needle for penetrating a septum of a vial and a blunt cannula for injecting into an injection port. The needle can be of any type including intramuscular. The blunt cannula concentrically surrounding the sharp hollow needle, forms a liquid-tight seal with the sharp hollow needle, and extends relative to the sharp hollow needle in a locked position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.