Auto-injector
US9474859B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2011 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Nov 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18984
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention refers to a shuttering mechanism for controlling translation of a longitudinally moveable component within an elongate housing, the shuttering mechanism comprising at least one set of castellations on the housing and at least one resilient arm associated with the longitudinally moveable component, the resilient arm having a dog resiliently biased towards the castellations so as to engage between or behind the castellations and block the translation, wherein a respective shutter arm is arranged alongside the set of castellations, the shutter arm having a number of consecutive ramped protrusions spaced from each other, wherein the castellations and the ramped protrusions have the same pitch, wherein a profiled surface is formed by the castellations and the ramped protrusions, wherein the shutter arm is moveable in longitudinal direction with respect to the set of castellations, wherein the shutter arm has at least one locking position with its ramped protrusions essentially in phase with the castellations thus allowing the dog of the resilient arm to catch between or behind the castellations and wherein the shutter arm has at least one unlocking position with its ramped…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.