Auto-injector apparatus
US8690836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2009 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Jul 3, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8287
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An auto-injector apparatus includes a flexible container containing a liquid medicant, a needle communicated with a container, a housing with a container being received in the housing, a pump disposed in the housing and positioned to engage the flexible container and expel the medicant from the container through the needle upon relative movement between the pump and the container, and a main drive spring operably associated with the needle to extend the needle from a first needle position wherein the needle is completely received in the housing to a second needle position wherein the needle protrudes from the housing. The pump may be a roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.