Pen-type injector
US8603044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2013 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Jun 4, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/582
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A housing for a dispensing apparatus. The housing comprising a main housing and a dose dial sleeve. The dose dial sleeve comprising a helical groove configured to engage a threading provided by the housing. A dose knob is disposed near a proximal end of the dose dial sleeve and a piston rod is provided within the housing. The piston rod is non-rotatable during a dose setting step. A driver comprises an internal threading near a distal portion of the driver and is adapted to engage an external thread of the piston rod. A tubular clutch is located adjacent a distal end of the dose knob and operatively coupled to the dose knob. The dose dial sleeve may extend circumferentially around at least a portion of the tubular clutch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.