Patent application number | Description | Published |
20090048646 | ON-DEMAND RETRANSMISSION OF DATA WITH AN IMPLANTABLE MEDICAL DEVICE - This document discloses, among other things, a telemetry system for requesting and receiving redundant data. A synchronization frame transmitted by an external device includes an echo code. The implantable device responds to the synchronization frame by sending real time data and echo data selected as a function of the echo code. | 02-19-2009 |
20090216298 | AUTOMATIC POWER CONTROL FOR A RADIO FREQUENCY TRANSCEIVER OF AN IMPLANTABLE DEVICE - Power supplied to a particular telemetry system of an implantable device having multiple telemetry systems is managed by a state machine. Power to a transceiver of a device is terminated if the particular telemetry system remains dormant or inactive for a programmable period of time and power to the transceiver is turned on if a particular signal is received by the implantable device. | 08-27-2009 |
20100049279 | ADAPTIVE SOFTWARE CONFIGURATION FOR A MEDICAL DEVICE - This document describes, among other things, a method of operating a medical device comprising updating a regulatory approval status stored in at least one of the medical device or a second device operable to communicate with the medical device, and enabling or disabling the at least one function in the medical device based on the regulatory approval status. The regulatory approval status corresponds to at least one function performable by the medical device. | 02-25-2010 |
20100114226 | SYSTEM TO PROVIDE MYOCARDIAL AND NEURAL STIMULATION - Various aspects provide an implantable device. In various embodiments, the device comprises at least one port, where each port is adapted to connect a lead with an electrode to the device. The device further includes a stimulation platform, including a sensing circuit connected to the at least one port to sense an intrinsic cardiac signal and a stimulation circuit connected to the at least one port via a stimulation channel to deliver a stimulation signal through the stimulation channel to the electrode. The stimulation circuit is adapted to deliver stimulation signals through the stimulation channel for both neural stimulation therapy and CRM therapy. The sensing and stimulation circuits are adapted to perform CRM functions. The device further includes a controller connected to the sensing circuit and the stimulation circuit to control the neural stimulation therapy and the CRM therapy. Other aspects and embodiments are provided herein. | 05-06-2010 |
20100145407 | METHOD AND SYSTEM FOR DISPLAY OF CARDIAC EVENT INTERVALS IN A RESYNCHRONIZATION PACEMAKER - A cardiac rhythm management system that includes a pacemaker configured for biventricular pacing and an external programmer with an associated display for displaying electrogram data and markers representing ventricular events. Associated with each marker are intraventricular intervals designed to relate information to a user in a manner suited for ventricular resynchronization pacing. | 06-10-2010 |
20130041269 | METHOD AND APPARATUS FOR DETERMINATION OF PHYSIOLOGICAL PARAMETERS USING CERVICAL IMPEDANCE - Implanted electrodes can be used to deliver electrical stimulation signals to areas near blood vessels, nerves, or other internal body locations. In an example, an electrode can be implanted in a cervical location and can be used to measure dimensional changes in an artery using impedance plethysmography. Measured artery dimensional changes can be used to determine one or more physiological parameters associated with a patient's health status, such as pulse transit time, relative pulse pressure, or aterial compliance, among others. These parameters can be used to monitor a patient health status or to modulate a patient's therapy, among other uses. In some examples, an electrode configured to deliver an electrostimulation signal to nerve tissue can be used to provide non-neurostimulating electrical stimulation plethysmography signals near a blood vessel. | 02-14-2013 |
20130073008 | POWER SUPPLY MANAGEMENT FOR IMPLANTABLE NEUROSTIMULATION DEVICES - An apparatus comprises a therapy circuit that provides a neural stimulation current, an impedance measurement circuit that measures a value of impedance at the output of the therapy circuit, a supply voltage generating circuit that provides an adjustable supply voltage value to the therapy circuit including a first supply voltage value when in a first mode, and a control circuit communicatively coupled to the therapy circuit, the impedance measuring circuit, and the supply voltage generating circuit. The control circuit, upon receiving an indication to exit the first mode, initiates an impedance measurement by the impedance measurement circuit, determines the second supply voltage value using the impedance measurement, and initiates a change from the first supply voltage value to the second supply voltage value. The second supply voltage value is sufficient to operate the therapy circuit and to provide a specified load current value to the measured impedance. | 03-21-2013 |
20140058467 | IMPLANTABLE MEDICAL DEVICE WITH CONTROL OF NEURAL STIMULATION BASED ON BATTERY STATUS - An implantable medical device is powered by a battery to deliver one or more therapies including at least one non-life-sustaining therapy such as neural stimulation for enhancing quality of life of a patient. When the battery approaches its end of life, the implantable medical device reduces power consumption of the neural stimulation (e.g., intensity of the neural stimulation) for extending the remaining battery life while maintaining a certain amount of therapeutic benefits for the patient. In one embodiment, the intensity of the neural stimulation is reduced in a tiered manner. In one embodiment in which the implantable medical device also delivers at least one life-sustaining cardiac stimulation therapy, the neural stimulation is disabled or adjusted to reduce its power consumption (e.g., intensity) while the intensity of the cardiac stimulation therapy is maintained when the battery is near its end of life. | 02-27-2014 |
20140236261 | METHOD AND SYSTEM FOR INDICATING NEUROSTIMULATION DELIVERY - A method and system for providing an indication of delivery of a neural stimulation therapy is disclosed. In an example, a method may include identifying current timing of an intermittent neural stimulation (INS) programmed in an implantable medical device (IMD) where the programmed INS includes alternating stimulation ON and stimulation OFF times and a timing for delivering stimulation bursts of a plurality of stimulation pulses during the stimulation burst ON times. An indication of the current timing of the INS may be provided using an INS indicator of an external device. | 08-21-2014 |