초록 ▼

An electrodiffusion pump includes a housing having an inlet, drug reservoir, and outlet. A diffusion membrane is disposed between the reservoir and outlet for diffusing the drug outwardly therethrough. Internal and external electrodes are disposed on opposite sides of the membrane. The electrodes ar

An electrodiffusion pump includes a housing having an inlet, drug reservoir, and outlet. A diffusion membrane is disposed between the reservoir and outlet for diffusing the drug outwardly therethrough. Internal and external electrodes are disposed on opposite sides of the membrane. The electrodes are porous, and the external electrode is additionally perforate to expose a portion of the membrane at the outlet. The electrodes are electrically powered for driving drug ions through the membrane under electrophoresis to complement diffusion thereof.

대표청구항 ▼

1. An electrodiffusion pump for dispensing an ionic drug comprising:a housing having an inlet for receiving said drug, a reservoir for storing said drug, and an outlet for discharging said drug; a diffusion membrane disposed in flow communication between said reservoir and outlet for diffusing said

1. An electrodiffusion pump for dispensing an ionic drug comprising:a housing having an inlet for receiving said drug, a reservoir for storing said drug, and an outlet for discharging said drug; a diffusion membrane disposed in flow communication between said reservoir and outlet for diffusing said drug outwardly therethrough; an internal electrode disposed inside said reservoir along an internal side of said membrane; an external electrode disposed outside said reservoir along an external side of said membrane; said internal and external electrodes being porous for channeling said drug therethrough, and said external electrode further being perforate to expose a portion of said membrane at said outlet; and means for electrically powering said electrodes as cathode and anode for additionally driving said ionic drug through said membrane under electrophoresis.