Patent application number | Description | Published |
20130253615 | AUTOMATIC SELECTION OF LEAD CONFIGURATION FOR A NEURAL STIMULATION LEAD - A neurostimulation system includes a neural stimulation lead having a proximal portion and a distal portion and including a plurality of electrodes along the distal portion. The plurality of electrodes are configured for positioning proximate a portion of the autonomic nervous system. A neural stimulation circuit, coupled to the plurality of electrodes, delivers neural stimulation pulses to the plurality of electrodes. A processor and controller is configured to control the neural stimulation circuit to deliver first neural stimulation pulses to each of a plurality of electrode configurations. Each electrode configuration includes one or more of the plurality of electrodes. The processor and controller is further configured to receive information related to motor fiber activity that is induced in response to delivery of the first neural stimulation pulses to each of the plurality of electrode configurations and to identify the electrode configurations that induce the motor fiber activity. | 09-26-2013 |
20140031886 | VENTRICULAR PACING TO AUGMENT ATRIAL NATRIURETIC HORMONE PRODUCTION - Intermittent delivery of ventricular pacing pulses synchronized to occur during an atrial diastole time period can be used to provide atrial stretch therapy and augment the production and release of atrial natriuretic hormone. | 01-30-2014 |
20140052209 | PHYSIOLOGICAL VIBRATION DETECTION IN AN IMPLANTED MEDICAL DEVICE - An embodiment of an implantable system configured to be implanted in a patient includes an accelerometer, a neural stimulator, and a controller. The neural stimulator is configured to deliver neural stimulation to a neural target. The controller is configured to use the accelerometer to detect laryngeal vibration or coughing, and is configured to deliver a programmed neural stimulation therapy using the neural stimulator and using detected laryngeal vibration or detected coughing as an input to the programmed neural stimulation therapy. | 02-20-2014 |
20140058471 | MEASURING AUTONOMIC TONE USING ATRIOVENTRICULAR DELAY - An autonomic status indicator representative of a sympathetic/parasympathetic balance of a subject can use atrioventricular (AV) delays measured during recovery from (or in response to) elevated atrial pacing while the subject is at rest. | 02-27-2014 |
20140094875 | REMOTE SENSING IN AN IMPLANTABLE MEDICAL DEVICE - An embodiment uses an accelerometer to sense heart sounds, and determines heart rate information using the sensed heart sounds. An embodiment uses an accelerometer to sense respiratory activity. An embodiment delivers a programmed neural stimulation therapy with a programmed duty cycle, where the programmed duty cycle includes a stimulation ON portion followed by a stimulation OFF portion. An electrode electrically connected to the implanted neural stimulation device is used to remotely detect cardiac activity. The remotely detected cardiac activity is used to detect heart rate information during the stimulation ON portion and to detect heart rate information during the stimulation OFF portion. The detected heart rate information and/or the detected respiration information are used to control a neural stimulation therapy performed by the neural stimulator device and/or are used to provide diagnostic information for the patient's condition. | 04-03-2014 |
20140128953 | SYSTEMS AND METHODS FOR DELIVERING VAGAL NERVE STIMULATION - According to various method embodiments, a person is indicated for a therapy to treat a cardiovascular disease, and the therapy is delivered to the person to treat the cardiovascular disease. Delivering the therapy includes delivering a vagal stimulation therapy (VST) to a vagus nerve of the person at a therapeutically-effective intensity for the cardiovascular disease that is below an upper boundary at which upper boundary the VST would lower an intrinsic heart rate during the VST. | 05-08-2014 |
20140257445 | PACING LEADS WITH A STRUCTURED COATING - An implantable medical device includes a lead body having a distal end and a proximal end, a lumen and at least one lead wire extending through the lumen. The lead wire has an outer surface and a polymeric coating on at least a portion of the outer surface of the lead wire. The coating includes a first structure having a first end proximate the outer surface of the lead wire and a second end opposite the first end. The second end is movable relative to the first end and relative to the lead wire. | 09-11-2014 |
20140343637 | CONTROL OF NEURAL MODULATION THERAPY USING CERVICAL IMPEDANCE - An implantable apparatus can comprise an electrical test energy delivery circuit configured to provide an electrical test signal to a cervical location in a patient body. A detector circuit can use the electrical test signal to detect cervical impedance and generate a cervical impedance signal representing fluctuations in the detected cervical impedance. The implantable apparatus can comprise a therapy delivery circuit, such as configured to provide electrical neural modulation therapy using a neural modulation timing parameter, and a processor circuit that can be coupled to the electrical test energy delivery circuit, the detector circuit, and the therapy delivery circuit. The processor circuit can be configured to determine a pulsatile signal or pulse pressure signal, such as using the cervical impedance signal, identify a characteristic of the pulsatile signal or pulse pressure signal, and control a neural modulation therapy using the timing parameter and the identified pulse pressure signal characteristic. | 11-20-2014 |
20150157863 | METHOD AND APPARATUS FOR THERAPY ADJUSTMENT IN RESPONSE TO INDUCED CARDIAC CONDUCTION CHANGES - An implantable system delivers a plurality of electrical stimulation therapies to a patient and controls the delivery such that a physiologic change induced by at least one of the therapies is detected and used to adjust one or more of the therapies. In various embodiments, the implantable system delivers a cardiac rhythm management (CRM) therapy such as a pacing therapy and a neural stimulation (NS) therapy such as an autonomic modulation therapy (AMT). In various embodiments, the physiologic change includes a change in a cardiac conduction interval that may be detected within a detection window following delivery of the pacing or NS therapy. | 06-11-2015 |
20150157867 | DOSED DELIVERY OF AUTONOMIC MODULATION THERAPY - An example of a method embodiment may include receiving a user programmable neural stimulation (NS) dose for an intermittent neural stimulation (INS) therapy, and delivering the INS therapy with the user programmable NS dose to an autonomic neural target of a patient. Delivering the INS therapy may include delivering NS bursts, and delivering the NS bursts may include delivering a number of NS pulses per cardiac cycle during a portion of the cardiac cycles and not delivering NS pulses during a remaining portion of the cardiac cycles. The method may further include sensing cardiac events within the cardiac cycles, and controlling delivery of the user programmable NS dose of INS therapy using the sensed cardiac events to time delivery of the number of NS pulses per cardiac cycle to provide the user programmable NS dose. The user programmable NS dose may determine the number of NS pulses per cardiac cycle. | 06-11-2015 |
20150157868 | INTUITED DELIVERY OF AUTONOMIC MODULATION THERAPY - An example of a method embodiment may deliver intermittent neural stimulation (INS) therapy to an autonomic neural target of a patient. The INS therapy includes neural stimulation (NS) ON times alternating with NS OFF times, and includes at least one NS burst of NS pulses during each of the NS ON times. For a given NS OFF time and subsequent NS ON time, delivering INS therapy may include monitoring a plurality of cardiac cycles during the NS OFF time, using the monitored plurality of cardiac cycles to predict cardiac event timing during the subsequent NS ON time, and controlling delivery of the INS therapy using the predicted cardiac event timing to time NS burst delivery of at least one NS burst for the subsequent NS ON time based on the predicted cardiac event timing. | 06-11-2015 |
20150202433 | METHOD AND APPARATUS FOR DIRECTED PROPAGATION OF NEURAL STIMULATION - A neural stimulation system delivers neural stimulation to a target nerve with control of direction of propagation of evoked neural signals in one or more fiber types of the target nerve using electrode configuration, thereby providing effective therapy while minimizing unintended effects. In various embodiments, mechanical parameters of a multi-polar electrode are determined to provide directed propagation of the neural stimulation by effecting neural conduction block in or near the stimulation site. In various embodiments, the electrode includes a cathode for evoking action potentials and a plurality of anodes for blocking the propagation of the evoked action potentials in specified direction(s) and fiber type(s) while minimizing the formation of virtual cathodes. | 07-23-2015 |
20150202441 | DEPLETION BLOCK TO BLOCK NERVE COMMUNICATION - An example of a system may include a depletion block neural stimulator and a depletion block controller. The depletion block neural stimulator may be configured to deliver a depletion block stimulation to a nerve. The depletion block stimulation may include a series of pulses at a pulse frequency within a range between about 100 Hz to about 1000 Hz. The depletion block controller may be configured to communicate with the depletion block neural stimulator and control the depletion block stimulation. The depletion block controller may be configured to receive a start depletion block signal and respond to the received start depletion block signal by initiating the delivery of the depletion block stimulation to the nerve, and the depletion block controller may be configured to receive a stop depletion block signal and respond to the received stop depletion block signal by terminating the delivery of the depletion block stimulation to the nerve. | 07-23-2015 |
20150202446 | SELECTIVE NERVE STIMULATION USING PRESYNAPTIC TERMINAL DEPLETION BLOCK - An example of a system may include a stimulator and at least one controller. The stimulator may be configured to deliver nerve stimulation to capture a first set of axons in a nerve and to deliver depletion block stimulation to capture a second set of axons in the nerve, where the second set is a subset of the first. The depletion block stimulation may include a series of pulses at a depletion pulse frequency within a range between about 100 Hz to about 1 kHz, and the nerve stimulation may include a series of pulses at a stimulation pulse frequency within a range of about 0.25 Hz to about 50 Hz. At least a portion of the nerve stimulation and at least a portion of the depletion block stimulation may be delivered to be effective in providing a nerve block while delivering nerve stimulation. | 07-23-2015 |
20150282738 | DISCRIMINATION OF APNEA TYPE BY MEDICAL DEVICE - Disclosed herein, among other things, are methods and apparatus related to identification of apnea type. One aspect of the present subject matter provides a method for real-time apnea discrimination. The method includes sensing an impedance-based tidal volume signal to monitor a respiratory cycle of a patient, and detecting a reduction in tidal swing using the sensed impendence to detect an apnea event. When the apnea event is detected, a shape of the sensed signal is compared to a stored signal shape to determine whether the apnea event is primarily an obstructive sleep apnea (OSA) event or primarily a central sleep apnea (CSA) event, in various embodiments. | 10-08-2015 |
20150283380 | SYSTEMS AND METHODS FOR DELIVERING VAGAL NERVE STIMULATION - According to various method embodiments, a person is indicated for a therapy to treat a cardiovascular disease, and the therapy is delivered to the person to treat the cardiovascular disease. Delivering the therapy includes delivering a vagal stimulation therapy (VST) to a vagus nerve of the person at a therapeutically-effective intensity for the cardiovascular disease that is below an upper boundary at which upper boundary the VST would lower an intrinsic heart rate during the VST. | 10-08-2015 |
20150283383 | METHODS AND APPARATUS FOR APNEA THERAPY STIMULATION - Disclosed herein, among other things, are methods and apparatus related to apnea therapy. One aspect of the present subject matter provides a method for apnea directed therapy. The method includes receiving a signal indicative of a real-time determination of type of an apnea event for a patient during the apnea event, and using the signal to select appropriate therapy to be applied to the patient during the apnea event to treat the apnea event, and to withhold inappropriate therapy. The therapy is applied in a closed loop system, in various embodiments. In various embodiments, the signal includes a determination of whether the apnea event is primarily an obstructive sleep apnea (OSA) event or primarily a central sleep apnea (CSA) event. | 10-08-2015 |
20150290462 | AUTOMATIC SELECTION OF LEAD CONFIGURATION FOR A NEURAL STIMULATION LEAD - A neurostimulation system includes a neural stimulation lead having a proximal portion and a distal portion and including a plurality of electrodes along the distal portion. The plurality of electrodes are configured for positioning proximate a portion of the autonomic nervous system. A neural stimulation circuit, coupled to the plurality of electrodes, delivers neural stimulation pulses to the plurality of electrodes. A processor and controller is configured to control the neural stimulation circuit to deliver first neural stimulation pulses to each of a plurality of electrode configurations. Each electrode configuration includes one or more of the plurality of electrodes. The processor and controller is further configured to receive information related to motor fiber activity that is induced in response to delivery of the first neural stimulation pulses to each of the plurality of electrode configurations and to identify the electrode configurations that induce the motor fiber activity. | 10-15-2015 |