Syringe/plunger coupling
US8353879B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2007 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Jul 13, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/01
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical fluid injector, replaceable syringe, and coupling mechanism to engage the syringe plunger to the plunger drive ram of the injector are provided wherein coupling involves a cam cleat-like mechanism, thereby allowing for cooperative movement between the plunger drive ram and syringe plunger. The coupling mechanism of the plunger drive ram is provided with first and second movable members, each having toothed, arcuate surfaces, while the coupling mechanism of the syringe plunger is provided with a knurled cavity. Disengagement of the coupling mechanism is facilitated by translational movement of a face plate located on the forward end of the injector housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.