Auto injector with cartridge retention system
US10835677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2016 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Oct 11, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/2485
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An auto injector (4) for administering injection of a medicament from a cartridge (700) containing the medicament, the auto injector comprising: a cartridge receiver (300) with a cartridge receiver compartment (302) configured to receive a cartridge assembly (600) with at least one cartridge retention member (808) when inserted through a cartridge receiver opening (302) along a longitudinal axis; and an ejector (200) configured to support the cartridge assembly (600) by being suspended to move along the longitudinal direction and being spring-loaded in the direction opposite of the receiving direction. The cartridge receiver compartment (302) has a first section (310), at a first distance from the cartridge receiver opening (301), with inwardly extending first guide members (312) that extends over first guide member angles (314) and are spaced apart to form a passage (316) at passage angles (318) between the inward first guide members (312); wherein the inward first guide members (312) form a first bore (320) accepting the cartridge assembly (600) when inserted through the cartridge receiver opening (301). The cartridge receiver compartment (302) has a second section (330) with an …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.