Medical injector with slidable sleeve activation
US9901681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2009 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Sep 3, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/2451
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In one aspect, a medical injector is provided herein which includes a body; a displaceable plunger disposed in the body; a spring disposed to advance the plunger; a releasable retainer for retaining the plunger in a first state against force of the spring; and, a sleeve disposed on the body, the sleeve being slidable relative to the body. Sliding movement of the sleeve over a predetermined extent relative to the body results in the releasable retainer releasing the plunger thereby allowing the spring to advance the plunger. Advantageously, the subject invention provides a medical injector having an automated plunger drive which is triggered upon sliding movement of the sleeve, thereby minimizing premature or failed activations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.