Multi-dose inhaler for medicaments in powder form

Patent 5033463 Issued on July 23, 1991. Estimated Expiration Date:

October 22, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3027897

3906950

Medicament dispensing process for inhalation therapy
Patent #: 3971377
Issued on: 07/27/1976
Inventor: Damani

Inhalation device
Patent #: 4105027
Issued on: 08/08/1978
Inventor: Lundquist

Device for dispensing medicaments
Patent #: 4116195
Issued on: 09/26/1978
Inventor: James

Dosage inhalator
Patent #: 4524769
Issued on: 06/25/1985
Inventor: Wetterlin

Suction resistant inhalator
Patent #: 4739754
Issued on: 04/26/1988
Inventor: Shaner

Insufflator for the administration of drugs in the form of a powder pre-dosed into opercola Patent #: 4884565
Issued on: 12/05/1989
Inventor: Cocozza

Inventor

Cocozza, Salvatore

Assignee

Miat S.p.A.

Application

No. 601417 filed on 10/22/1990

US Classes:

128/203.21, Means broken or pierced to supply treating agent128/203.15, Particulate treating agent carried by breathed gas128/203.23Pocket-type draw tube having discharge aperture for air/treating agent mixture at end thereof

Examiners

Primary: Burr, Edgar S.
Assistant: Raciti, Eric P.

Attorney, Agent or Firm

Ladas & parry

Foreign Patent References

2926659 DE 01/13/1981

International Class

A61M 015/00

Foreign Application Priority Data

1989-10-27 IT

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.