Multiple material dispensing
US7083590B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2000 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Jun 18, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/1475
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device suitable for use as an intra vaginal device or as a bolus where, after initiation, a member (usually a plunger) moves with a known movement characteristic and is involved in the stagger release of multiple materials. That moving member is used to time the discharge of one or more material from its reservoir in the device (there being separate powering of the timed discharge) or is used to both time and indirectly power the discharge of one or more material from its reservoir, such discharges preferably being in a staggered manner. Optionally the moving member as a plunger may itself also directly discharge a material from a reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.