Syringe
US7588556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2005 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Nov 1, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/5033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Syringe having a plunger, a barrel and a restrictor mechanism between the shaft of the plunger and the barrel and including a first part engaged with the barrel for limiting movement of the first part with respect to the barrel in a first direction, and a second part. The restrictor mechanism and/or plunger shaft carries a formation for limiting movement of the restrictor mechanism with respect to the plunger in the first direction. The restrictor mechanism as a further member which restricts movement of the restrictor mechanism with respect to the barrel or plunger shaft in a second direction. A latch member prevents he further member from restricting movement of the restrictor mechanism with respect to the barrel or plunger shaft in the second direction until a predetermined point in an operation cycle of the syringe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.