Drug delivery articles utilizing electrical energy
Patent 4922901 Issued on May 8, 1990. Estimated Expiration Date: 
September 8, 2008. 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.
September 8, 2008. 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.Patent ReferencesInventorsAssigneeApplicationNo. 241641 filed on 09/08/1988US Classes:128/203.26, Means for heating treating agent, respiratory gas, or mixture thereof128/202.27, Means for quickly connecting or disconnecting apparatus components128/203.12, Means for mixing treating agent with respiratory gas128/203.27, Electric128/204.13, Treating agent evaporated from extended surface absorbent (e.g., sponge, fibrous wick, screen, etc.)128/204.17, Means for heating respiratory gas or respiration device131/273, Smoking simulator131/329TOBACCO USERS' APPLIANCEExaminersPrimary: Burr, Edgar S.Assistant: Asher, Kimberly L. Foreign Patent References
International ClassesA61M 016/00A61M 015/06 A24K 047/00 200.24 204.17 202.27 AbstractDrug delivery articles employ an electrical resistance heating element and an electrical power source to provide a dose of a drug in aerosol form. The articles advantageously comprise a disposable portion and a reusable controller. The disposable portion, normally includes a drug and an air permeable resistance heating element having a surface area greater than 1 m2 /g, which usually carries an aerosol forming material. The reusable controller normally includes a puff-actuated current actuation means, a time-based current regulating means to control the temperature of the heating element, and a battery power supply.Other References
Field of SearchSmoking device simulatorMeans for mixing treating agent with respiratory gas Means for supplying anesthetic under patient's control Particulate treating agent carried by breathed gas Electrically heated means producing water vapor Means for heating treating agent, respiratory gas, or mixture thereof Electric Treating agent evaporated from extended surface absorbent (e.g., sponge, fibrous wick, screen, etc.) LIQUID MEDICAMENT ATOMIZER OR SPRAYER Pre-pressurized container holding medicament | |
