Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1990-02-14
1992-05-19
Burr, Edgar S.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
12820315, A61M 1500
Patent
active
051138557
ABSTRACT:
A powdered medication inhaler is provided which comprises a body having a hollow chamber of substantial height. Powdered medication is transferred from a hopper by a dosing blade having an amperture therein to a transfer station opening into a chamber. In most embodiments of the invention the transfer station is adjacent the upper portion of the chamber, but in one embodiment it is adjacent the lower portion thereof. When the transfer station is adjacent the upper portion of the chamber it includes a pallet or cup on which powdered medication is dropped or blown from the dosing blade. Gas then carries the medication from the cup or pallet into the chamber for inhalation by a patient. In the embodiment in which the transfer station is adjacent the bottom of the chamber compressed gas blows the powder up into the chamber.
REFERENCES:
patent: 2570774 (1951-10-01), Davis
patent: 2579280 (1951-12-01), Trumbour et al.
patent: 2581182 (1952-01-01), Fields
patent: 2587215 (1952-02-01), Priestly
patent: 4274403 (1981-06-01), Struve
patent: 4534343 (1985-08-01), Nowacki et al.
Burr Edgar S.
Lewis Aaron J.
Wolters Robert M.
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