Devices and methods for engaging indexed valve and pressurized canister assembly with collar and for linear actuation by plunger assembly into fluid communication with device for regulating drug delivery
US8757148B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2009 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jan 23, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2270/025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An indexed drug delivery device (70) comprising a valve assembly (13) comprising a housing (26) and a valve, the valve disposed within the housing, one or more keys (34,38) integral to the housing, the keys complementary to corresponding openings on a collar (12), a pressurized canister (28) in fluid communication with the valve assembly, the canister containing an active pharmaceutical ingredient and an inactive carrier gas, a receiving assembly comprising a receptacle adapted to engage at least a portion of the housing, a seat adapted to engage the valve, and, a plunger assembly adapted to linearly actuate the valve assembly and canister along an axis and to engage the valve and seat, the plunger assembly comprising a carriage fixed to the collar, and, a lever having a cam adapted to engage a spring, the spring adapted to linearly actuate the carriage, valve assembly, canister and collar along the axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.