Patient activated administration of drug bolus from implantable drug delivery system
First Claim
17. A method for activating an implantable drug delivery system, the method comprising:
- initiating a timer to time a lockout interval upon issuing a first dosage of a drug an implantable drug delivery system;
receiving an input signal indicating a user request for a second dosage of the drug from the implantable drug delivery system;
communicating an activation signal from an external activation device to the implantable drug delivery system in response to the input signal when the input signal is received after expiration of the lockout interval; and
rejecting the user request for the second dosage of the drug when the input signal is received prior to expiration of the lockout interval.
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Accused Products
Abstract
Systems and methods are described for reducing the risk of overdosage from a patient activated implantable drug delivery system. In one embodiment, an implantable drug delivery system is configured to deliver a drug. An external activation unit is operable by a user to request activation of the implantable drug delivery system. The activation unit includes a controller to reject a request to activate the implantable drug delivery system prior to expiration of a lockout interval. The controller issues an activation signal to the implantable drug delivery system in response to a request received after expiration of the lockout interval. The controller restarts the lockout interval upon activating the drug delivery system.
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Citations
53 Claims
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17. A method for activating an implantable drug delivery system, the method comprising:
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initiating a timer to time a lockout interval upon issuing a first dosage of a drug an implantable drug delivery system;
receiving an input signal indicating a user request for a second dosage of the drug from the implantable drug delivery system;
communicating an activation signal from an external activation device to the implantable drug delivery system in response to the input signal when the input signal is received after expiration of the lockout interval; and
rejecting the user request for the second dosage of the drug when the input signal is received prior to expiration of the lockout interval.
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22. A computer-readable medium comprising instructions for causing a programmable processor to:
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maintain a timer to time a lockout interval; and
reject a user request to activate an implantable drug delivery system prior to expiration of the lockout interval. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. An apparatus comprising:
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an input/output (I/O) device;
controller coupled to the I/O device to receive a user request to activate an implantable drug delivery system; and
a timer managed by the controller to time a lockout interval, wherein the controller outputs an activation signal to activate the implantable drug delivery system when the user request is received after expiration of the lockout interval. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 31, 32, 33, 34, 35, 36, 37, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49)
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36-1. The apparatus of claim 30, wherein the timer comprises a software timer.
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38. A system comprising:
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an implantable drug delivery system; and
an activation unit operable by a user to request activation of the implantable drug delivery system.
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46. A system comprising:
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means for initiating a timer to time a lockout interval upon issuance of a first dosage of a drug via an implantable drug delivery system;
means for receiving an input signal indicating a user request for a second dosage of the drug from the implantable drug delivery system;
means for communicating an activation signal from an external activation device to the implantable drug delivery system in response to the input signal when the input signal is received after expiration of the lockout interval; and
means for rejecting the user request for the second dosage of the drug when the input signal is received prior to expiration of the lockout interval.
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50. A method for activating an implantable drug delivery system, the method comprising:
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receiving a user request to activate an implantable drug delivery system;
communicating an activation signal from an external activation device to the implantable drug delivery system in response to the user request; and
activating the implantable drug delivery system in response to the activation signal. - View Dependent Claims (51, 52, 53)
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Specification