Frost protected injection device
US9616175B2 · kind B2 · utility
1Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2010 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Sep 4, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6081
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to an injection device (100, 200, 300) which is capable of resisting proximal movements of a piston rod (107, 207, 307) relative to a housing (102, 202, 302), when the piston rod (107, 207, 307) is subjected to proximally directed forces below a threshold magnitude, and of allowing reversible proximal movements of the piston rod (107, 207, 307) relative to the housing (102, 202, 302), when the piston rod (107, 207, 307) is subjected to proximally directed forces of or above the threshold magnitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.