Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1990-10-22
1991-07-23
Burr, Edgar S.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
12820323, A61M 1500
Patent
active
050334638
ABSTRACT:
A multi-dose inhaler (1; 2) for medicaments in powder form comprises a container unit (24; 124) for the medicament in powder form, a withdrawal and dose preparation unit (22, 26; 122, 126) for the medicament, and a unit (16, 50; 152, 176) for mixing the dose of medicament with an air stream. The withdrawal and dose preparation unit comprises: a cup-type conveyor device (22; 122) provided with at least one cup (20; 120) for withdrawing from the container unit a certain quantity of powder and conveying it into a dispensing position, the cup (20; 120) having two coaxial identical holes (56; 156); and a plunger-type dispensing device (36; 106) disposed above the mixing unit, the plunger (36; 106) being insertable as an exact fit into and withdrawable from the holes (56; 156) in the cup (20; 120) when the latter is in the dispensing position, to cause a dose of medicament in powder form to fall into the mixing unit.
REFERENCES:
patent: 3027897 (1962-04-01), Carofiglio
patent: 3906950 (1975-09-01), Cocozza
patent: 3971377 (1976-07-01), Damani
patent: 4105027 (1978-08-01), Lundquist
patent: 4116195 (1978-09-01), James
patent: 4524769 (1985-06-01), Wetterlin
patent: 4739754 (1988-04-01), Shaner
patent: 4884565 (1989-12-01), Cocozza
Burr Edgar S.
Miat S.p.A.
Raciti E. P.
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