Apparatus for injecting a pharmaceutical with automatic syringe retraction following injection
US9044553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2010 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Aug 13, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3247
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pharmaceutical delivery apparatus with an automatic syringe retraction following a manually controlled injection. The apparatus includes a housing (28), a syringe carriage (90), a medication-filled syringe (70) held within the carriage, the syringe needle tip being disposed within the housing in a first position and projecting from the housing beyond the housing proximal end for insertion into an injection site in a second position, a manually shiftable plunger (130), means on the carriage and the housing and the plunger for causing the carriage to advance from the first position to the second position and for injecting medicine from the syringe when the plunger is manually plunged proximally toward the housing, and means on the carriage and the plunger for causing the carriage to retract from the second position to a position at which the needle tip is disposed within the housing when the plunger shifts distally.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.