Abstract: A method and system is described for ensuring a state of an active implantable medical device based on the presence and persistence of a magnetic field. The output of a magnetic field sensor is monitored. The active implantable medical device is maintained in a first state, for so long as the presence of a magnetic field is detected by the magnetic field sensor, until a first interval is surpassed. If the first interval is surpassed, then a determination is made as to whether a second interval has been surpassed. If it is determined that the second interval has not been surpassed, then the active implantable medical device is transitioned into a second state. If it is determined that the second interval has been surpassed, then it is ensured that the active implantable medical device is in a predetermined one of the first and second states.

Abstract: A method and system is described for ensuring a state of an active implantable medical device based on the presence and persistence of a magnetic field. The output of a magnetic field sensor is monitored. The active implantable medical device is maintained in a first state, for so long as the presence of a magnetic field is detected by the magnetic field sensor, until a first interval is surpassed. If the first interval is surpassed, then a determination is made as to whether a second interval has been surpassed. If it is determined that the second interval has not been surpassed, then the active implantable medical device is transitioned into a second state. If it is determined that the second interval has been surpassed, then it is ensured that the active implantable medical device is in a predetermined one of the first and second states.

Abstract: In accordance with an embodiment, a system and method is provided for providing communications between first and second implantable medical devices (IMDs). The system comprises a first implantable medical device (IMD) configured to transmit a first event message during or preceding a first cardiac cycle, and a second IMD configured to receive the first event message, wherein receipt of the first event message configures the second IMD to generate pacing pulses for only a predetermined number (“n”) of consecutive cardiac cycles, wherein n is an integer equal to or greater than 2.

Abstract: A method and system is described for ensuring a state of an active implantable medical device based on the presence and persistence of a magnetic field. The output of a magnetic field sensor is monitored. The active implantable medical device is maintained in a first state, for so long as the presence of a magnetic field is detected by the magnetic field sensor, until a first interval is surpassed. If the first interval is surpassed, then a determination is made as to whether a second interval has been surpassed. If it is determined that the second interval has not been surpassed, then the active implantable medical device is transitioned into a second state. If it is determined that the second interval has been surpassed, then it is ensured that the active implantable medical device is in a predetermined one of the first and second states.

Abstract: A system and method for automatically adjusting the value of a parameter defined to manage and control the resources recruited by an implantable medical device to supply power or the device to deliver an instance of an electrical stimulation therapy to a patient. In embodiments, the parameter corresponds to a number of capacitors the discharge of which supplies the power to deliver a stimulation therapy at a programmed amplitude. Whenever the circumstances prevent the programmed amplitude from being delivered, the system and method automatically adjust the resource-controlling parameter to use the minimum power to achieve the desired (programmed) amplitude or as close as possible to that programmed amplitude. Some embodiments additionally include using another parameter (a equivalent amplitude parameter) to balance the charge delivered through multiple pathways in parallel sourced from a single reservoir of power.

Abstract: A method and system is described for ensuring a state of an active implantable medical device based on the presence and persistence of a magnetic field. The output of a magnetic field sensor is monitored. The active implantable medical device is maintained in a first state, for so long as the presence of a magnetic field is detected by the magnetic field sensor, until a first interval is surpassed. If the first interval is surpassed, then a determination is made as to whether a second interval has been surpassed. If it is determined that the second interval has not been surpassed, then the active implantable medical device is transitioned into a second state. If it is determined that the second interval has been surpassed, then it is ensured that the active implantable medical device is in a predetermined one of the first and second states.

Abstract: A method and system is described for ensuring a state of an active implantable medical device based on the presence and persistence of a magnetic field. The output of a magnetic field sensor is monitored. The active implantable medical device is maintained in a first state, for so long as the presence of a magnetic field is detected by the magnetic field sensor, until a first interval is surpassed. If the first interval is surpassed, then a determination is made as to whether a second interval has been surpassed. If it is determined that the second interval has not been surpassed, then the active implantable medical device is transitioned into a second state. If it is determined that the second interval has been surpassed, then it is ensured that the active implantable medical device is in a predetermined one of the first and second states.

Abstract: In accordance with an embodiment, a system and method is provided for providing communications between first and second implantable medical devices (IMDs). The system comprises a first implantable medical device (IMD) configured to transmit a first event message during or preceding a first cardiac cycle, and a second IMD configured to receive the first event message, wherein receipt of the first event message configures the second IMD to generate pacing pulses for only a predetermined number (“n”) of consecutive cardiac cycles, wherein n is an integer equal to or greater than 2.

Abstract: A system and method for automatically adjusting the value of a parameter defined to manage and control the resources recruited by an implantable medical device to supply power or the device to deliver an instance of an electrical stimulation therapy to a patient. In embodiments, the parameter corresponds to a number of capacitors the discharge of which supplies the power to deliver a stimulation therapy at a programmed amplitude. Whenever the circumstances prevent the programmed amplitude from being delivered, the system and method automatically adjust the resource-controlling parameter to use the minimum power to achieve the desired (programmed) amplitude or as close as possible to that programmed amplitude. Some embodiments additionally include using another parameter (a equivalent amplitude parameter) to balance the charge delivered through multiple pathways in parallel sourced from a single reservoir of power.

Abstract: A system and method for automatically adjusting the value of a parameter defined to manage and control the resources recruited by an implantable medical device to supply power or the device to deliver an instance of an electrical stimulation therapy to a patient. In embodiments, the parameter corresponds to a number of capacitors the discharge of which supplies the power to deliver a stimulation therapy at a programmed amplitude. Whenever the circumstances prevent the programmed amplitude from being delivered, the system and method automatically adjust the resource-controlling parameter to use the minimum power to achieve the desired (programmed) amplitude or as close as possible to that programmed amplitude. Some embodiments additionally include using another parameter (a equivalent amplitude parameter) to balance the charge delivered through multiple pathways in parallel sourced from a single reservoir of power.

Abstract: Systems, methods and devices are disclosed for directing and focusing signals to the brain for neuromodulation and for directing and focusing signals or other energy from the brain for measurement, heat transfer and imaging. An aperture in the skull and/or a channel device implantable in the skull can be used to facilitate direction and focusing. Treatment and diagnosis of multiple neurological conditions may be facilitated with the disclosed systems, methods and devices.

Abstract: A system and method for automatically adjusting the value of a parameter defined to manage and control the resources recruited by an implantable medical device to supply power or the device to deliver an instance of an electrical stimulation therapy to a patient. In embodiments, the parameter corresponds to a number of capacitors the discharge of which supplies the power to deliver a stimulation therapy at a programmed amplitude. Whenever the circumstances prevent the programmed amplitude from being delivered, the system and method automatically adjust the resource-controlling parameter to use the minimum power to achieve the desired (programmed) amplitude or as close as possible to that programmed amplitude. Some embodiments additionally include using another parameter (a equivalent amplitude parameter) to balance the charge delivered through multiple pathways in parallel sourced from a single reservoir of power.

Abstract: A method and system is described for ensuring a state of an active implantable medical device based on the presence and persistence of a magnetic field. The output of a magnetic field sensor is monitored. The active implantable medical device is maintained in a first state, for so long as the presence of a magnetic field is detected by the magnetic field sensor, until a first interval is surpassed. If the first interval is surpassed, then a determination is made as to whether a second interval has been surpassed. If it is determined that the second interval has not been surpassed, then the active implantable medical device is transitioned into a second state. If it is determined that the second interval has been surpassed, then it is ensured that the active implantable medical device is in a predetermined one of the first and second states.

Abstract: A system and method for detecting and predicting neurological events with an implantable device uses a relatively low-power central processing unit in connection with signal processing circuitry to identify features (including half waves) and calculate window-based characteristics (including line lengths and areas under the curve of the waveform) in an electrographic signal received from a patient's brain. The features and window-based characteristics are combinable in various ways according to the invention to detect and predict neurological events in real time, enabling responsive action by the implantable device.

Abstract: A system and method for detecting and predicting neurological events with an implantable device uses a relatively low-power central processing unit in connection with signal processing circuitry to identify features (including half waves) and calculate window-based characteristics (including line lengths and areas under the curve of the waveform) in an electrographic signal received from a patient's brain. The features and window-based characteristics are combinable in various ways according to the invention to detect and predict neurological events in real time, enabling responsive action by the implantable device.