Electrotransport device having reusable controller power saver
First Claim
1. In an electrotransport system for delivering a therapeutic agent through a body surface of a patient, the system including an assembly having a pair of electrodes, at least one of the electrodes containing the therapeutic agent to be delivered, and a controller, including a bipolar electrical power source and a current control circuit in electrical contact with both poles of the power source through a closed circuit path other than through the patient body surface, for providing electric current to the electrodes, and a coupler for coupling and uncoupling the controller and the assembly, the improvement comprising:
- a switch connected to the coupler, for electrically connecting the power source to the control circuit upon coupling the controller and the assembly and for electrically disconnecting the power source from the circuit upon uncoupling the controller and the assembly.
1 Assignment
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Accused Products
Abstract
An electrotransport system (50) includes a reusable controller (52) having a power source (60) and a separable disposable drug-containing unit (70). The controller (52) contains a switch (62) which disconnects the power source (60) from current drain when the controller (52) is uncoupled from the drug unit (70). A coupling means (74,66,105,72,64,104) physically and electrically connects together the controller (52) and the drug unit (70) such that the controller (52) provides electrical current to the drug unit (70) for electrotransport delivery of the drug to a body surface (eg, the skin) of a patient.
125 Citations
20 Claims
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1. In an electrotransport system for delivering a therapeutic agent through a body surface of a patient, the system including an assembly having a pair of electrodes, at least one of the electrodes containing the therapeutic agent to be delivered, and a controller, including a bipolar electrical power source and a current control circuit in electrical contact with both poles of the power source through a closed circuit path other than through the patient body surface, for providing electric current to the electrodes, and a coupler for coupling and uncoupling the controller and the assembly, the improvement comprising:
a switch connected to the coupler, for electrically connecting the power source to the control circuit upon coupling the controller and the assembly and for electrically disconnecting the power source from the circuit upon uncoupling the controller and the assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating an electrotransport system for delivering a therapeutic agent through a body surface of a patient, the system including an assembly having a pair of electrodes, at least one of the electrodes containing the therapeutic agent to be delivered, and a controller, including a bipolar electrical power source and a current control circuit in electrical contact with both poles of the power source through a closed circuit path other than through the body surface, for providing electric current to the electrodes, a coupler for coupling and uncoupling the controller and the electrode assembly, and a switch operatively connected to the coupler, comprising:
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coupling the controller and the assembly, the coupling causing the switch to electrically connect the power source to the control circuit; and subsequently uncoupling the controller and the assembly, the uncoupling causing the switch to electrically disconnect the power source from the control circuit. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification