Patents by Inventor Abhi V. Chavan
Abhi V. Chavan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8983617Abstract: A neurostimulation system senses a signal indicative of a patient's physical state such as posture and/or activity level. In various embodiments, a stored value for each of stimulation parameters controlling delivery of neurostimulation is selected according to the patient's physical state. In various embodiments, values of the stimulation parameters are approximately optimized for each of a number of different physical states, and are stored for later selection.Type: GrantFiled: April 8, 2013Date of Patent: March 17, 2015Assignee: Cardiac Pacemakers, Inc.Inventors: Abhi V. Chavan, Keith R. Maile, David J. Ternes, Juan Gabriel Hincapie Ordonez, Stephen Ruble, Jason J. Hamann
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Patent number: 8688213Abstract: An apparatus comprises a cardiac signal sensing circuit configured to sense an electrical cardiac signal from at least one of an atrium or ventricle of a heart of a subject, a therapy circuit configured to provide electrical pacing therapy and electrical autonomic neural modulation therapy to the subject, and a control circuit. The control circuit is configured to initiate delivery of the autonomic modulation neural therapy, and the control circuit includes a signal detection circuit configured to detect delivery of the autonomic neural modulation therapy in the sensed cardiac signal. The control circuit is configured to change, in response to detecting the delivery, a sensitivity of the cardiac signal sensing circuit during delivery of the autonomic neural modulation therapy.Type: GrantFiled: October 25, 2012Date of Patent: April 1, 2014Assignee: Cardiac Pacemakers, Inc.Inventors: David J. Ternes, Douglas J. Brandner, Ramprasad Vijayagopal, Nicholas J. Stessman, William J. Linder, Keith R. Maile, Abhi V. Chavan
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Patent number: 8660648Abstract: 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.Type: GrantFiled: November 15, 2012Date of Patent: February 25, 2014Assignee: Cardiac Pacemakers, Inc.Inventors: Abhi V. Chavan, Anthony V. Caparso, Avram Scheiner
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Patent number: 8634921Abstract: 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.Type: GrantFiled: February 22, 2012Date of Patent: January 21, 2014Assignee: Cardiac Pacemakers, Inc.Inventors: Abhi V. Chavan, Anthony V. Caparso, Avram Scheiner
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Patent number: 8626295Abstract: A piezoelectric element within an external ultrasonic transducer assembly can be used for wireless communication of data between an implantable device and the external ultrasonic transducer assembly such as using ultrasonic energy coupled to a flexible portion of a housing of the transducer assembly. The flexible portion can be configured to contact skin of a body containing the implantable device. The transducer assembly can be configured to respectively transmit or receive ultrasonic energy using at least partially overlapping respective ranges of resonant frequencies.Type: GrantFiled: March 2, 2011Date of Patent: January 7, 2014Assignee: Cardiac Pacemakers, Inc.Inventors: Eyal Doron, Bin Mi, Abhi V. Chavan, Keith R. Maile
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Publication number: 20130226264Abstract: A neurostimulation system senses a signal indicative of a patient's physical state such as posture and/or activity level. In various embodiments, a stored value for each of stimulation parameters controlling delivery of neurostimulation is selected according to the patient's physical state. In various embodiments, values of the stimulation parameters are approximately optimized for each of a number of different physical states, and are stored for later selection.Type: ApplicationFiled: April 8, 2013Publication date: August 29, 2013Applicant: Cardiac Pacemakers, Inc.Inventors: Abhi V. Chavan, Keith R. Maile, David J. Ternes, Juan Gabriel Hincapie Ordonez, Stephen Ruble, Jason J. Hamann
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Publication number: 20130138170Abstract: An apparatus comprises a cardiac signal sensing circuit configured to sense an electrical cardiac signal from at least one of an atrium or ventricle of a heart of a subject, a therapy circuit configured to provide electrical pacing therapy and electrical autonomic neural modulation therapy to the subject, and a control circuit. The control circuit is configured to initiate delivery of the autonomic modulation neural therapy, and the control circuit includes a signal detection circuit configured to detect delivery of the autonomic neural modulation therapy in the sensed cardiac signal. The control circuit is configured to change, in response to detecting the delivery, a sensitivity of the cardiac signal sensing circuit during delivery of the autonomic neural modulation therapy.Type: ApplicationFiled: October 25, 2012Publication date: May 30, 2013Inventors: David J. Ternes, Douglas J. Brandner, Ramprasad Vijayagopal, Nicholas J. Stessman, William J. Linder, Keith R. Maile, Abhi V. Chavan
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Patent number: 8433419Abstract: A neurostimulation system senses a signal indicative of a patient's physical state such as posture and/or activity level. In various embodiments, a stored value for each of stimulation parameters controlling delivery of neurostimulation is selected according to the patient's physical state. In various embodiments, values of the stimulation parameters are approximately optimized for each of a number of different physical states, and are stored for later selection.Type: GrantFiled: October 13, 2011Date of Patent: April 30, 2013Assignee: Cardiac Pacemakers, Inc.Inventors: Abhi V. Chavan, Keith R. Maile, David J. Ternes, Juan Gabriel Hincapie Ordonez, Stephen Ruble, Jason J. Hamann
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Patent number: 8433404Abstract: An apparatus includes a cardioversion or defibrillation therapy energy source coupled to a bridge circuit. The bridge circuit includes a first switch for connection to a first implantable electrode, a second switch for connection to a second implantable electrode, a third switch coupled for connection to the first implantable electrode, and a fourth switch coupled for connection to the second implantable electrode. The first and second switches are formed on a shared first IC, the third and fourth switches are formed on a shared second IC, and the second IC is stacked substantially superjacent to the first IC such that a cathode of the first switch is coupled to an anode of the third switch and a cathode of the second switch is coupled to an anode of the fourth switch.Type: GrantFiled: April 19, 2010Date of Patent: April 30, 2013Assignee: Cardiac Pacemakers, Inc.Inventors: Abhi V. Chavan, Keith R. Maile, Andrew Bartczak
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Patent number: 8430868Abstract: Embodiments of the invention are related to tools for coupling leads to header assemblies for implantable medical devices, amongst other things. A wrench is configured so that if an axial force exceeding a first threshold is applied to a handle housing, then the housing handle will rotate with respect to a shaft. Other embodiments are also included herein.Type: GrantFiled: February 17, 2010Date of Patent: April 30, 2013Assignee: Cardiac Pacemakers, Inc.Inventors: John M. Edgell, Lawrence D. Swanson, John E. Hanson, Abhi V. Chavan
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Publication number: 20130073000Abstract: 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.Type: ApplicationFiled: November 15, 2012Publication date: March 21, 2013Inventors: Abhi V. Chavan, Anthony V. Caparso, Avram Scheiner
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Patent number: 8401659Abstract: An implantable medical device for use in a patient management system is described, including a sensor capable of measuring a body characteristic and generating a data signal describing the measurement, and a processor configured to analyze the data signal and identify one or more significant events that warrant attention for the well-being of a patient. The implantable medical device further includes a first non-rechargeable battery configured to power at least the sensor and the processor. In addition, a first communications unit is configured to be powered by the first non-rechargeable battery and includes a wireless transmitter capable of establishing a first communications link with a host computer using an external local receiver, when said first wireless transmitter is within a short-range telemetry communication range of said local receiver, to deliver notification of the significant events to the host computer.Type: GrantFiled: January 15, 2009Date of Patent: March 19, 2013Assignee: Cardiac Pacemakers, Inc.Inventors: Jeffrey Allen Von Arx, Abhi V. Chavan
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Patent number: 8315702Abstract: 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.Type: GrantFiled: February 22, 2012Date of Patent: November 20, 2012Assignee: Cardiac Pacemakers, Inc.Inventors: Abhi V. Chavan, Anthony V. Caparso, Avram Scheiner
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Publication number: 20120095530Abstract: A neurostimulation system senses a signal indicative of a patient's physical state such as posture and/or activity level. In various embodiments, a stored value for each of stimulation parameters controlling delivery of neurostimulation is selected according to the patient's physical state. In various embodiments, values of the stimulation parameters are approximately optimized for each of a number of different physical states, and are stored for later selection.Type: ApplicationFiled: October 13, 2011Publication date: April 19, 2012Inventors: Abhi V. Chavan, Keith R. Maile, David J. Ternes, Juan Gabriel Hincapie Ordonez, Stephen Ruble, Jason J. Hamann
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Patent number: 8126561Abstract: 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.Type: GrantFiled: November 5, 2009Date of Patent: February 28, 2012Assignee: Cardiac Pacemakers, Inc.Inventors: Abhi V. Chavan, Anthony V. Caparso, Avram Scheiner
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Patent number: 8060214Abstract: An embodiment of a system for gathering physiologic data related to a human body includes a sensor device implanted in the human body, an inductive coil communicably coupled to the implanted sensor device; and a manager device in communication with the implanted sensor device via the inductive coil. The coil may be wrapped around the sensor device or attached to the sensor device fixation. An embodiment of a method for gathering physiologic data related to a physiologic parameter in a human body includes communicably coupling an inductive coil to communication circuitry of an implantable medical device (IMD), deploying the inductive coil and the IMD into a vessel of the human body, and inducing current in the inductive coil via the communication circuitry, the current representative of data associated with the IMD.Type: GrantFiled: January 5, 2006Date of Patent: November 15, 2011Assignee: Cardiac Pacemakers, Inc.Inventors: Dennis E. Larson, Cheng Zhang, Keith R. Maile, Abhi V. Chavan
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Publication number: 20110218594Abstract: A piezoelectric element within an external ultrasonic transducer assembly can be used for wireless communication of data between an implantable device and the external ultrasonic transducer assembly such as using ultrasonic energy coupled to a flexible portion of a housing of the transducer assembly. The flexible portion can be configured to contact skin of a body containing the implantable device. The transducer assembly can be configured to respectively transmit or receive ultrasonic energy using at least partially overlapping respective ranges of resonant frequencies.Type: ApplicationFiled: March 2, 2011Publication date: September 8, 2011Inventors: Eyal Doron, Bin Mi, Abhi V. Chavan, Keith R. Maile
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Publication number: 20110187360Abstract: A method and device can include a Hall effect sensor, which can be formed as a portion of an integrated circuit of an implantable device and which can produce a non-linear current path such as to permit detecting a magnetic field parallel with the orientation of the Hall effect sensor of the implantable device.Type: ApplicationFiled: February 2, 2011Publication date: August 4, 2011Inventors: Keith R. Maile, Scot C. Boon, Abhi V. Chavan
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Publication number: 20100298897Abstract: An apparatus includes a cardioversion or defibrillation therapy energy source coupled to a bridge circuit. The bridge circuit includes a first switch for connection to a first implantable electrode, a second switch for connection to a second implantable electrode, a third switch coupled for connection to the first implantable electrode, and a fourth switch coupled for connection to the second implantable electrode. The first and second switches are formed on a shared first IC, the third and fourth switches are formed on a shared second IC, and the second IC is stacked substantially superjacent to the first IC such that a cathode of the first switch is coupled to an anode of the third switch and a cathode of the second switch is coupled to an anode of the fourth switch.Type: ApplicationFiled: April 19, 2010Publication date: November 25, 2010Inventors: Abhi V. Chavan, Keith R. Maile, Andrew Bartczak
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Publication number: 20100274230Abstract: Embodiments of the invention are related to tools for coupling leads to header assemblies for implantable medical devices, amongst other things. A wrench is configured so that if an axial force exceeding a first threshold is applied to a handle housing, then the housing handle will rotate with respect to a shaft. Other embodiments are also included herein.Type: ApplicationFiled: February 17, 2010Publication date: October 28, 2010Applicant: CARDIAC PACEMAKERS, INC.Inventors: John M. Edgell, Lawrence D. Swanson, John E. Hansen, Abhi V. Chavan