초록 ▼

An iontophoretic device in which the polarity of the electrodes is reversible. There is a current source and a pair of electrodes. A polarity control between the current source and the electrodes determines the direction of current flow through and between the electrodes. A timer circuit communicate

An iontophoretic device in which the polarity of the electrodes is reversible. There is a current source and a pair of electrodes. A polarity control between the current source and the electrodes determines the direction of current flow through and between the electrodes. A timer circuit communicates with the current source and the polarity switching circuit to automatically ramp down the current, switch polarity and then ramp up the current after the polarity has been switched, thereby permitting the iontophoretic process to take place under both electrodes with one application.

대표청구항 ▼

An iontophoretic device comprising: a source of electrical current; first electrode means for containing a charged ionic substance for delivery to said body; second electrode means for containing said charged ionic substance for delivery to said body; timing means coupled to said source of electrica

An iontophoretic device comprising: a source of electrical current; first electrode means for containing a charged ionic substance for delivery to said body; second electrode means for containing said charged ionic substance for delivery to said body; timing means coupled to said source of electrical current for timing a first period and a second period; and polarity switching means coupled to said timing means, said source of electrical current and said first and second electrode means for applying said electrical current across said first and second electrode means in a first direction to effect delivery of said ionic substance contained in one of said first and second electrode means during said first period and for applying said electrical current across said first and second electrode means in a second direction to effect delivery of said ionic substance contained in the other of said first and second electrode means during said second period.