Injection device
US9956342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2013 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Sep 1, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/2418
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The injection device includes a static structure including a first gear member. The injection device also includes a dynamic structure including a medicine container, a mechanism for pushing liquid medicine out of the medicine container for its injection to a patient, and a second gear member engaged with the first gear member. The injection device additionally includes a drive member for driving one of the first and second gear members so as to cause the dynamic structure to move relative to the static structure along a predetermined direction due to the engagement between the first and second gear members. The injection device further includes a clutch mechanism for maintaining engagement between the first and second gear members in normal condition of the injection device, and for allowing disengagement of the first and second gear members upon a shock received by the injection device along the predetermined direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.