Automatic injection device for multiple dosing
US10556067B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 2015 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Nov 4, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/31508
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical injection device used to deliver multiple doses of medication, including: a medication container having a movable piston; a push rod assembly having a plurality of spaced-apart position settings disposed along the length, the push rod assembly displacing the movable piston to dispense medication from the medication container; a spring to bias the push rod assembly to move toward the distal end of the medical injection device; a releasable restraining member configured to restrain the push rod assembly in a locked state against the biasing of the spring, upon release of the releasable restraining member, the push rod assembly moves toward the distal end of the medical injection device; and an arming mechanism configured to move the push rod assembly toward the proximal end of the medical injection device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.