Patents by Inventor Dean Andersen

Dean Andersen 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).

  • Patent number: 10783223
    Abstract: An implantable medical device and method are provided for comprising a sensing circuit that is configured to sense and output physiologic data indicative of a physiologic characteristic of a patient and at least one processor. A memory is coupled to the at least one processor. The memory stores program instructions and processed data. The program instructions are executable by the at least one processor to execute general operational functions within the IMD. A hybrid signal processing (HSP) circuit is coupled to the at least one processor and the sensing circuit. The HSP circuit is adapted to filter the physiologic data. The HSP circuit comprises a plurality of first order filters, a plurality of higher order filters, and a switch matrix that is configured to interconnect a combination of the first and higher order filters to form a hybrid digital filter having a select composite frequency response that utilizes no more than a select power demand.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: September 22, 2020
    Assignee: PACESETTER, INC.
    Inventor: Dean Andersen
  • Publication number: 20200196867
    Abstract: Embodiments described herein relate to an implantable device that include an inductor coil, a storage capacitor, active circuitry, and a sensor, but doesn't include an electrochemical cell, and methods for use therewith. During first periods of time, the storage capacitor accumulates and stores energy received via the inductor coil from a non-implanted device. During second periods of time, interleaved with the first periods of time, and during which energy is not received from the non-implanted device, the active circuitry of the implantable device is powered by the energy stored on the storage capacitor and is used to perform at least one of a plurality of predetermined operations of the implantable device, including, e.g., obtaining a sensor measurement from the sensor of the implantable device, transmitting a communication signal including a sensor measurement to the non-implanted device, and/or receiving a communication signal from the non-implanted device.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 25, 2020
    Applicant: Pacesetter, Inc.
    Inventors: Dean Andersen, William Douglas Barrett, Jin-Woo Park, Philip M. Fitzsimons, Ion Opris, Eiji Shirai
  • Publication number: 20200129770
    Abstract: Certain embodiments of the present technology relate to temperature sensors for using in an implantable medical device, and methods for use therewith. Such a method can include alternating between producing a first base-to-emitter voltage drop (VBE1) and a second base-to-emitter voltage drop (VBE2), and alternating between using a capacitor to store the VBE1, which is complimentary to absolute temperature (CTAT), and using the same capacitor to store a ?VBE=VBE2?VBE1, which is proportion to absolute temperature (PTAT). The method also includes using a sigma-delta modulator that includes the capacitor to produce a signal having a duty cycle (dc) indicative of the ?VBE stored using the capacitor, and producing a temperature measurement based on the signal having the duty cycle (dc) indicative of the ?VBE.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 30, 2020
    Applicant: Pacesetter, Inc.
    Inventors: Ion Opris, Dean Andersen
  • Publication number: 20200129082
    Abstract: Devices and methods for dynamically controlling sensitivity associated with detecting R-waves while maintaining the fixed detection threshold are described herein. One such method includes sensing an analog signal indicative of cardiac electrical activity, converting the analog signal indicative of cardiac electrical activity to a digital signal indicative of cardiac electrical activity, and detecting R-waves by comparing the digital signal indicative of cardiac electrical activity to a fixed detection threshold to thereby detect threshold crossings that corresponds to R-waves. The method further includes selectively adjusting a gain applied to the digital signal indicative of cardiac electrical activity to thereby selectively adjust a sensitivity associated with the detecting R-waves, while maintaining the fixed detection threshold.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 30, 2020
    Applicant: Pacesetter, Inc.
    Inventor: Dean Andersen
  • Patent number: 10543370
    Abstract: Circuits, devices and methods are provided to manage modifications to protected registers within an implantable medical device (IMD). The circuit comprises a bus controller that includes an address register, an unlock register and a protected register (PR) enable unit. The PR enable unit sets a protect enable signal to an access state based on content loaded into the unlock register. A peripheral block includes a protected register that retains content for operating the IMD. The peripheral block includes a register access input to receive the protected enable signal. A PR write control unit is provided to enable an attempted write of the content from a data interface to the protected register when the protected enable signal has an access state.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: January 28, 2020
    Assignee: PACESETTER, INC.
    Inventors: David Doudna, Dean Andersen, Thomas Ng
  • Publication number: 20190307347
    Abstract: The present disclosure provides systems and methods for processing biological data signals. An implantable medical device includes a sensing component that acquires a raw biological data signal. A filtering component communicatively coupled to the sensing component filters the raw biological data signal to generate a filtered biological data signal by ignoring signal values that fall within an amplitude window defined between an upper threshold and a lower threshold. A processing and storage component communicatively coupled to the filtering component stores the filtered biological data signal.
    Type: Application
    Filed: April 6, 2018
    Publication date: October 10, 2019
    Inventor: Dean ANDERSEN
  • Publication number: 20190196734
    Abstract: Circuits, devices and methods are provided to manage modifications to protected registers within an implantable medical device (IMD). The circuit comprises a bus controller that includes an address register, an unlock register and a protected register (PR) enable unit. The PR enable unit sets a protect enable signal to an access state based on content loaded into the unlock register. A peripheral block includes a protected register that retains content for operating the IMD. The peripheral block includes a register access input to receive the protected enable signal. A PR write control unit is provided to enable an attempted write of the content from a data interface to the protected register when the protected enable signal has an access state.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 27, 2019
    Inventors: David Doudna, Dean Andersen, Thomas Ng
  • Publication number: 20190114393
    Abstract: An implantable medical device and method are provided for comprising a sensing circuit that is configured to sense and output physiologic data indicative of a physiologic characteristic of a patient and at least one processor. A memory is coupled to the at least one processor. The memory stores program instructions and processed data. The program instructions are executable by the at least one processor to execute general operational functions within the IMD. A hybrid signal processing (HSP) circuit is coupled to the at least one processor and the sensing circuit. The HSP circuit is adapted to filter the physiologic data. The HSP circuit comprises a plurality of first order filters, a plurality of higher order filters, and a switch matrix that is configured to interconnect a combination of the first and higher order filters to form a hybrid digital filter having a select composite frequency response that utilizes no more than a select power demand.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 18, 2019
    Inventor: Dean Andersen
  • Publication number: 20190076663
    Abstract: The methods and systems herein generally relate to generating stimulation waveforms for a therapy of a neurostimulation (NS) device in a patient. The methods and systems receive a target stimulation waveform from a user interface, calculate a timing resolution of the target stimulation waveform, determine target amplitude resolutions of the target stimulation waveform, identify whether a mathematical relationship exists between the target amplitude resolutions, and automatically designate one of a first, second, or third generator circuits based on at least one of the timing resolution, the amplitude, or the mathematical relationship. The systems and methods further transmit the target stimulation waveform and an activation instruction for the designated one of the first, second, or third generator circuits along the communication link to a NS device. The NS device includes the first, second, and third generator circuits configured to generate different first, second, and third types of stimulation waveforms.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 14, 2019
    Inventors: Dean Andersen, Gavin Rade
  • Patent number: 10193217
    Abstract: A flexible antenna is associated with an active implantable medical device to facilitate communication between the implantable medical device and an external component in the outside world via, for example, long range or far field telemetry. The flexibility of the antenna allows it to conform to the shape of the location at which it is situated, such as on the cranial bone of a patient for an antenna associated with a cranially implanted medical device. The conformability of the antenna helps to maintain the antenna in the desired shape and to maintain it in the desired location relative to implantable medical device and the patient and improves patient comfort.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: January 29, 2019
    Assignee: NeuroPace, Inc.
    Inventors: Dean Andersen, Stephen T. Archer, John Dunagan Pearson
  • Publication number: 20180277938
    Abstract: A flexible antenna is associated with an active implantable medical device to facilitate communication between the implantable medical device and an external component in the outside world via, for example, long range or far field telemetry. The flexibility of the antenna allows it to conform to the shape of the location at which it is situated, such as on the cranial bone of a patient for an antenna associated with a cranially implanted medical device. The conformability of the antenna helps to maintain the antenna in the desired shape and to maintain it in the desired location relative to implantable medical device and the patient and improves patient comfort.
    Type: Application
    Filed: May 31, 2018
    Publication date: September 27, 2018
    Inventors: Dean ANDERSEN, Stephen T. ARCHER, John Dunagan PEARSON
  • Patent number: 10014571
    Abstract: A flexible antenna is associated with an active implantable medical device to facilitate communication between the implantable medical device and an external component in the outside world via, for example, long range or far field telemetry. The flexibility of the antenna allows it to conform to the shape of the location at which it is situated, such as on the cranial bone of a patient for an antenna associated with a cranially implanted medical device. The conformability of the antenna helps to maintain the antenna in the desired shape and to maintain it in the desired location relative to implantable medical device and the patient and improves patient comfort.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: July 3, 2018
    Assignee: NeuroPace, Inc.
    Inventors: Dean Andersen, Stephen T. Archer, John Dunagan Pearson
  • Publication number: 20180040944
    Abstract: A flexible antenna is associated with an active implantable medical device to facilitate communication between the implantable medical device and an external component in the outside world via, for example, long range or far field telemetry. The flexibility of the antenna allows it to conform to the shape of the location at which it is situated, such as on the cranial bone of a patient for an antenna associated with a cranially implanted medical device. The conformability of the antenna helps to maintain the antenna in the desired shape and to maintain it in the desired location relative to implantable medical device and the patient and improves patient comfort.
    Type: Application
    Filed: October 19, 2017
    Publication date: February 8, 2018
    Inventors: Dean ANDERSEN, Stephen T. ARCHER, John Dunagan PEARSON
  • Patent number: 9837704
    Abstract: A flexible antenna is associated with an active implantable medical device to facilitate communication between the implantable medical device and an external component in the outside world via, for example, long range or far field telemetry. The flexibility of the antenna allows it to conform to the shape of the location at which it is situated, such as on the cranial bone of a patient for an antenna associated with a cranially implanted medical device. The conformability of the antenna helps to maintain the antenna in the desired shape and to maintain it in the desired location relative to implantable medical device and the patient and improves patient comfort.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: December 5, 2017
    Assignee: NeuroPace, Inc.
    Inventors: Dean Andersen, Stephen T Archer, John Dunagan Pearson
  • Publication number: 20160303572
    Abstract: A system and method for liberating different materials in recyclable material streams is provided. A material stream is introduced into an adjustable dwell time shredder. The dwell time of the shredder is adjustable by rotating the shredder from a first position to a second position, thereby changing the migration rate of objects within the shredder. The liberation of materials is not dependent on the ability of the shredder to reduce materials to a certain granule size in order to pass through a grate or screen. The dwell time of the shredder may be adjusted during operation of the shredder.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Inventors: Randall R. Brace, Dean Andersen
  • Publication number: 20140266933
    Abstract: A flexible antenna is associated with an active implantable medical device to facilitate communication between the implantable medical device and an external component in the outside world via, for example, long range or far field telemetry. The flexibility of the antenna allows it to conform to the shape of the location at which it is situated, such as on the cranial bone of a patient for an antenna associated with a cranially implanted medical device. The conformability of the antenna helps to maintain the antenna in the desired shape and to maintain it in the desired location relative to implantable medical device and the patient and improves patient comfort.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicant: NeuroPace, Inc.
    Inventors: Dean ANDERSEN, Stephen T. ARCHER, John Dunagan PEARSON
  • Patent number: 8386049
    Abstract: A communication wake-up scheme for an implantable medical device may involve repeatedly activating a receiver to determine whether an external device is attempting to establish communication with the implantable device. To reduce the amount of power consumed by the implantable device in conjunction with the wake-up scheme, the scheme may involve conducting preliminary RF signal detections as a precursor to conducting a full scan. In this way, power may be conserved since the more power intensive full scans may be performed less frequently. This preliminary detection of RF signals also may be adapted to reduce the number of full scans performed by the implantable device that do not result in communication with the external device. In some embodiments the adaptation involves adjusting one or more thresholds that are used in conjunction with the preliminary detection of RF signals.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: February 26, 2013
    Assignee: Pacesetter, Inc.
    Inventors: Benjamin T. Persson, Dorin Panescu, Dean Andersen
  • Patent number: 8275463
    Abstract: Exemplary techniques for recording a context for sensed biological data are described. One technique senses biological data from a patient and records supporting data with the sensed biological data.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: September 25, 2012
    Assignee: Pacesetter, Inc.
    Inventor: Dean Andersen
  • Publication number: 20110202113
    Abstract: A communication wake-up scheme for an implantable medical device may involve repeatedly activating a receiver to determine whether an external device is attempting to establish communication with the implantable device. To reduce the amount of power consumed by the implantable device in conjunction with the wake-up scheme, the scheme may involve conducting preliminary RF signal detections as a precursor to conducting a full scan. In this way, power may be conserved since the more power intensive full scans may be performed less frequently. This preliminary detection of RF signals also may be adapted to reduce the number of full scans performed by the implantable device that do not result in communication with the external device. In some embodiments the adaptation involves adjusting one or more thresholds that are used in conjunction with the preliminary detection of RF signals.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 18, 2011
    Inventors: Benjamin T. Persson, Dorin Panescu, Dean Andersen
  • Patent number: 7957813
    Abstract: A communication wake-up scheme for an implantable medical device may involve repeatedly activating a receiver to determine whether an external device is attempting to establish communication with the implantable device. To reduce the amount of power consumed by the implantable device in conjunction with the wake-up scheme, the scheme may involve conducting preliminary radio frequency signal detections as a precursor to conducting a full scan. In this way, power may be conserved since the more power intensive full scans may be performed less frequently. This preliminary detection of radio frequency signals also may be adapted to reduce the number of full scans performed by the implantable device that do not result in communication with the external device. In some embodiments the adaptation involves adjusting one or more thresholds that are used in conjunction with the preliminary detection of radio frequency signals.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: June 7, 2011
    Assignee: Pacesetter, Inc.
    Inventors: Benjamin T. Persson, Dorin Panescu, Dean Andersen