Insert defining a measuring chamber of an inhaler device
US5724960A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 3, 1997 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Jan 3, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/073
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An inhaler device for inhaling substance in powder form, the device comprising a body (9), a compressed air pump (1) including a pump body (2) and a pump chamber (4), an expulsion duct (6) connected via a flap valve (5) to the pump chamber (4) and opening out into an outlet endpiece (7) through which the substance is dispensed, a substance reservoir (11) connected to said expulsion duct (6), and a substance measuring chamber (13) disposed fixedly in said expulsion duct (6), the device being characterized in that said measuring chamber (13) comprises an insert (14) having a top portion (16) projecting into said expulsion duct (6) in sealed manner through an opening provided for that purpose in said duct (6), said top portion (16) of said insert (14) being of a shape that is suitable for retaining a predetermined quantity of substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.