Twist unlock and downward push disengage needle unlocker system
US5857569A · kind A · utility
Inventors
Key dates
| Filing date | Mar 5, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Mar 5, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/3205
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention preferably comprises a method and several apparatus embodiments for needle unlocking and disengagement by a single straight-through insertion of the needle to the needle hub, twist unlocking and push through and pull back disengagement. In addition, it is preferable to adapt the relatively small "footprint" of the needle unlocking and disengagement device for placement at the end of a splash and aerosol protective cylinder whereby the external cylindrical body surface of the syringe or vacuum tube adapter lies relatively close to the inside wall of the protective cylinder upon insertion of the syringe or vacuum tube adapter for needle unlocking and disengagement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.