| Patent application number | Description | Published |
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| 20080243196 | UNIDIRECTIONAL NEURAL STIMULATION SYSTEMS, DEVICES AND METHODS - An embodiment relates to a method for delivering a unidirectional afferent nerve stimulation treatment. A test neural stimulation is delivered, and a physiologic response to the test neural stimulation is monitored. At least one neural stimulation parameter for the test neural stimulation is adjusted if the test neural stimulation does not elicit a desired physiologic response. If the test neural stimulation does elicit the desired physiologic response, at least one treatment parameter for a unidirectional afferent nerve stimulation is determined using the at least one neural stimulation parameter for the test neural stimulation that provided the desired physiologic response. The unidirectional afferent nerve stimulation is delivered using the at least one treatment parameter. | 10-02-2008 |
| 20080281372 | NEURAL STIMULATION SYSTEM ANALYZER - Various embodiments relate to a device to analyze an implantable neural stimulation system that includes an implantable neural stimulation lead for an implantable neural stimulator to be implanted into a patient. Various device embodiments comprise an external housing, a pacing circuit in the housing, and a sensing circuit in the housing. The pacing circuit is adapted to deliver a test neural stimulation signal. At least one test lead cable is adapted to electrically connect the pacing circuit and the implantable neural stimulation lead to enable the test neural stimulation signal to be delivered to a neural target through the test lead cable and the implantable neural stimulation lead. At least one physiological sensor is adapted to sense a physiological response to stimulation of the neural target. At least one sensor cable is adapted to electrically connect the sensing circuit and the at least one physiological sensor. | 11-13-2008 |
| 20090275956 | TECHNIQUES FOR PLACING MEDICAL LEADS FOR ELECTRICAL STIMULATION OF NERVE TISSUE - This disclosure is directed to extra, intra, and transvascular medical lead placement techniques for arranging medical leads and electrical stimulation and/or sensing electrodes proximate nerve tissue within a patient. | 11-05-2009 |
| 20090275996 | TECHNIQUES FOR PLACING MEDICAL LEADS FOR ELECTRICAL STIMULATION OF NERVE TISSUE - This disclosure is directed to extra, intra, and transvascular medical lead placement techniques for arranging medical leads and electrical stimulation and/or sensing electrodes proximate nerve tissue within a patient. | 11-05-2009 |
| 20090276022 | TECHNIQUES FOR PLACING MEDICAL LEADS FOR ELECTRICAL STIMULATION OF NERVE TISSUE - This disclosure is directed to extra, intra, and transvascular medical lead placement techniques for arranging medical leads and electrical stimulation and/or sensing electrodes proximate nerve tissue within a patient. | 11-05-2009 |
| 20090276023 | TECHNIQUES FOR PLACING MEDICAL LEADS FOR ELECTRICAL STIMULATION OF NERVE TISSUE - This disclosure is directed to extra, intra, and transvascular medical lead placement techniques for arranging medical leads and electrical stimulation and/or sensing electrodes proximate nerve tissue within a patient. | 11-05-2009 |
| 20090276025 | TECHNIQUES FOR PLACING MEDICAL LEADS FOR ELECTRICAL STIMULATION OF NERVE TISSUE - This disclosure is directed to extra, intra, and transvascular medical lead placement techniques for arranging medical leads and electrical stimulation and/or sensing electrodes proximate nerve tissue within a patient. | 11-05-2009 |
| 20090299159 | SYSTEM AND METHOD FOR MONITORING AUTONOMIC BALANCE AND PHYSICAL ACTIVITY - An implantable device monitors the balance between sympathetic tone and parasympathetic tone as a function of an activity level. Cardio-neurological healthy users exhibit a generally sympathetic tone in conjunction with heavy activity level and a generally parasympathetic tone in conjunction with periods of low activity level. Deviations from expected results are associated with a health problem. Measured conditions are stored and available for subsequent reporting to a remote programmer. Therapy delivered by an implantable device is determined as a function of the relationship between autonomic balance and activity level. | 12-03-2009 |
| 20100016927 | TRANSVASCULAR RESHAPING LEAD SYSTEM - A system for selective activation of a nerve trunk using a transvascular reshaping lead is provided. One aspect of this disclosure relates to a system for spreading nerve bundles in a nerve trunk. The system includes a lead adapted to be chronically implanted in a blood vessel proximate a nerve trunk, and having an expandable portion adapted to be expanded to reshape the blood vessel to an elongated shape and to reshape the nerve trunk into an elongated shape to spread nerve bundles of the nerve trunk. The system also includes a plurality of electrodes and an implantable device coupled to the lead, where an electrical signal is delivered from the implanted medical device to one of the plurality of electrodes to transvascularly deliver neural stimulation from the electrode to at least one of the nerve bundles of the nerve trunk. Other aspects and embodiments are provided herein. | 01-21-2010 |
| 20100049275 | IMPLANTABLE AND RECHARGEABLE NEURAL STIMULATOR - One aspect of the present subject matter relates to an implantable medical device. An embodiment of the device comprises a rechargeable power supply adapted to be recharged through an ultrasound signal, a neural stimulator connected to the rechargeable power supply, and a controller connected to the rechargeable power supply. The neural stimulator is adapted to generate a neural stimulation signal for delivery to a neural stimulation target through an electrode. The controller is further connected to the neural stimulator to control the neural stimulator according to a neural stimulation protocol. Other aspects are provided herein. | 02-25-2010 |
| 20100056929 | Syncope Logbook and Method of Using Same - Methods and systems are directed to acquiring and organizing information associated with at least one syncope event. A syncope event may be a suspected syncope event, a verified syncope event or a syncope event that is suspected and verified. Automated processes are used to collect information associated with at least one syncope event and organize the information as a syncope log entry. At least one of acquiring the information and organizing the information is performed at least in part implantably. | 03-04-2010 |
| 20100076511 | BAROREFLEX STIMULATION SYSTEM TO REDUCE HYPERTENSION - Various aspects of the present subject matter provide an implantable medical device. In various embodiments, the device comprises a pulse generator, a lead, a sensor, and a controller. The pulse generator generates a baroreflex stimulation signal as part of a baroreflex therapy. The lead is adapted to be electrically connected to the pulse generator and to be intravascularly fed into a heart. The lead includes an electrode to be positioned in or proximate to the heart to deliver the baroreflex signal to a baroreceptor region in or proximate to the heart. The sensor senses a physiological parameter regarding an efficacy of the baroreflex therapy and provides a signal indicative of the efficacy. The controller is connected to the pulse generator to control the baroreflex stimulation signal and to the sensor to receive the signal indicative of the efficacy of the baroreflex therapy. Other aspects are provided herein. | 03-25-2010 |
| 20100114217 | THERAPY SYSTEM INCLUDING CARDIAC RHYTHM THERAPY AND NEUROSTIMULATION CAPABILITIES - An implantable medical system that includes a cardiac therapy module and a neurostimulation therapy module may identify when neurostimulation electrodes have migrated toward a patient's heart. In some examples, the system may determine whether the neurostimulation electrodes have migrated toward the patient's heart based on a physiological response to an electrical signal delivered to the patient via the neurostimulation electrodes. In addition, in some examples, the system may determine whether the neurostimulation electrodes have migrated toward the patient's heart based on an electrical cardiac signal sensed via the neurostimulation electrodes. | 05-06-2010 |
| 20100114221 | THERAPY SYSTEM INCLUDING CARDIAC RHYTHM THERAPY AND NEUROSTIMULATION CAPABILITIES - An implantable medical system that includes a cardiac therapy module and a neurostimulation therapy module may identify when neurostimulation electrodes have migrated toward a patient's heart. In some examples, the system may determine whether the neurostimulation electrodes have migrated toward the patient's heart based on a physiological response to an electrical signal delivered to the patient via the neurostimulation electrodes. In addition, in some examples, the system may determine whether the neurostimulation electrodes have migrated toward the patient's heart based on an electrical cardiac signal sensed via the neurostimulation electrodes. | 05-06-2010 |
| 20100114244 | ELECTRICAL RENAL AUTONOMIC BLOCKADE - Electrical stimulation may be configured to decrease renal sympathetic activity by creating at least a partial functional conduction block in the efferent and/or afferent sympathetic nerve fibers that innervate the kidneys. An electrical stimulator may deliver a stimulation signal to a renal nerve of a patient. The stimulation signal may be a biphasic signal with a frequency of approximately 100 hertz to 20 kilohertz. In some examples, a sensor may sense a physiological parameter of the patient, and the stimulation generator may activate, deactivate, or adjust the stimulation signal based on the physiological parameter. The physiological parameter may be indicative of sympathetic activity within the patient. | 05-06-2010 |
| 20100137931 | Implantable Cardiac Device With Dyspnea Measurement - Cardiac monitoring and/or stimulation methods and systems employing dyspnea measurement. An implantable cardiac device may sense transthoracic impedance and determine a patient activity level. An index indicative of pulmonary function is implantably computed to detect an episode of dyspnea based on a change, trend, and/or value exceeding a threshold at a determined patient activity level. Trending one or more pulmonary function index values may be done to determine a patient's pulmonary function index profile, which may be used to adapt a cardiac therapy. A physician may be automatically alerted in response to a pulmonary function index value and/or a trend of the patient's pulmonary index being beyond a threshold. Computed pulmonary function index values and their associated patient's activity levels may be stored periodically in a memory and/or transmitted to a patient-external device. | 06-03-2010 |
| 20100191311 | HIGH FREQUENCY STIMULATION TO BLOCK LARYNGEAL STIMULATION DURING VAGAL NERVE STIMULATION - An implantable medical device and associated method deliver a therapy to an autonomic nerve. The therapy delivery includes delivering therapeutic low frequency (LF) electrical stimulation pulses to the autonomic nerve and delivering a high frequency electrical signal to the autonomic nerve during the LF frequency stimulation pulse delivery. The high frequency stimulation signal blocks activation of autonomic nerve fibers innervating a non-targeted tissue during the therapeutic LF stimulation pulse delivery. | 07-29-2010 |
| 20100317940 | Absolute calibrated tissue oxygen saturation and total hemoglobin volume fraction - A medical device for monitoring a patient condition includes a sensor capable of being advanced transvascularly to be positioned along a volume of tissue, the sensor including a first combination of a light source and a light detector to emit light into a volume of tissue and to detect light scattered by the volume of tissue and to generate a first output signal corresponding to an intensity of the detected light. A control module is coupled to the light source to control the light source to emit light at least four spaced-apart light wavelengths, and a monitoring module is coupled to the light detector to receive the output signal and compute a measure of tissue oxygenation using the light detector output signal. | 12-16-2010 |
| 20100317941 | ABSOLUTE CALIBRATED TISSUE OXYGEN SATURATION AND TOTAL HEMOGLOBIN VOLUME FRACTION - A medical device for monitoring a patient condition includes a first combination of a light source and a light detector to emit light into a volume of tissue, detect light scattered by the volume of tissue, and provide a first output signal corresponding to an intensity of the detected light. A control module is coupled to the light source to control the light source to emit light at least four spaced-apart light wavelengths, and a monitoring module is coupled to the light detector to receive the output signal, compute a measure of tissue oxygenation in response to the light detector output signal, and detect tissue hypoxia using the measure of tissue oxygenation. | 12-16-2010 |
| 20110022109 | WIRELESS ECG IN IMPLANTABLE DEVICES - An implantable medical device such as an implantable pacemaker or implantable cardioverter/defibrillator includes a programmable sensing circuit providing for sensing of a signal approximating a surface electrocardiogram (ECG) through implanted electrodes. With various electrode configurations, signals approximating various standard surface ECG signals are acquired without the need for attaching electrodes with cables onto the skin. The various electrode configurations include, but are not limited to, various combinations of intracardiac pacing electrodes, portions of the implantable medical device contacting tissue, and electrodes incorporated onto the surface of the implantable medical device. | 01-27-2011 |
| 20110098776 | CARDIAC RHYTHM MANAGEMENT SYSTEM AND METHOD - A system and method for cardiac rhythm management, which includes an electrode system having at least one electrode and control circuitry coupled to the electrode system from which a first cardiac signal is sensed. The control circuitry includes a pulse circuit to produce electrical pulses at a first value to be delivered to the electrode system in a first cardiac region. At least one cardiac signal is sensed from a second cardiac region, where the cardiac signal includes indications of cardiac depolarizations from the second cardiac region which occurs in direct reaction to the electrical pulses delivered to the first cardiac region. The first value of the electrical pulses are then modified by a pulse adjustment circuit when a cardiac depolarization which occurs in direct reaction to the electrical pulse delivered to the first cardiac region is detected from the second cardiac region. | 04-28-2011 |
| 20110105933 | APPARATUS AND METHOD FOR OUTPUTTING HEART SOUNDS - An apparatus for outputting heart sounds includes an implantable system and an external system. The implantable system includes a sensor for generating sensed signals representing detected heart sounds, an interface circuit and a control circuit for receiving the sensed signals, generating data representing the heart sounds therefrom, and transmitting the data to the external system via the interface circuit. The external system includes an interface circuit for communicating with the implantable system, and a control circuit for receiving the data representing the heart sounds and for generating control signals that cause an output device to generate outputs representing the sounds. The implantable system may also include a sensor(s) for detecting cardiac electrical signals. In this case, outputs representing the cardiac electrical signals are also output. | 05-05-2011 |
