Patents by Inventor Thomas M. Bocek
Thomas M. Bocek 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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Publication number: 20210123994Abstract: Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.Type: ApplicationFiled: January 7, 2021Publication date: April 29, 2021Inventors: Karl Gauglitz, Thomas M Bocek, Mark Rutzer, Lorin W Matthews, William E. Reagor, Blair Erbstoeszer
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Patent number: 10921396Abstract: Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.Type: GrantFiled: July 27, 2017Date of Patent: February 16, 2021Assignee: Cardiac Pacemakers, Inc.Inventors: Karl Gauglitz, Thomas M. Bocek, Mark Rutzer, Lorin W. Matthews, William E. Reagor, Blair Erbstoeszer
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Publication number: 20170322266Abstract: Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.Type: ApplicationFiled: July 27, 2017Publication date: November 9, 2017Inventors: Karl Gauglitz, Thomas M. Bocek, Mark Rutzer, Lorin W. Matthews, William E. Reagor, Blair Erbstoeszer
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Patent number: 9766307Abstract: Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.Type: GrantFiled: March 11, 2014Date of Patent: September 19, 2017Assignee: Cardiac Pacemakers, Inc.Inventors: Karl Gauglitz, Thomas M. Bocek, Mark Rutzer, Lorin W. Matthews, William E. Reagor, Blair Erbstoeszer
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Patent number: 8958877Abstract: An ambulatory or implantable device, such as a pacer, defibrillator, or other cardiac rhythm management device, can tolerate magnetic resonance imaging (MRI) or other noise without turning on an integrated circuit diode by selectively providing a bias voltage that can overcome an expected induced voltage resulting from the MRI or other noise.Type: GrantFiled: June 10, 2014Date of Patent: February 17, 2015Assignee: Cardiac Pacemakers, Inc.Inventors: Nicholas J. Stessman, Michael J. Lyden, Thomas M. Bocek, William J. Linder, Joseph M. Bocek
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Publication number: 20140296699Abstract: An ambulatory or implantable device, such as a pacer, defibrillator, or other cardiac rhythm management device, can tolerate magnetic resonance imaging (MRI) or other noise without turning on an integrated circuit diode by selectively providing a bias voltage that can overcome an expected induced voltage resulting from the MRI or other noise.Type: ApplicationFiled: June 10, 2014Publication date: October 2, 2014Inventors: Nicholas J. Stessman, Michael J. Lyden, Thomas M. Bocek, William J. Linder, Joseph M. Bocek
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Publication number: 20140194729Abstract: Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.Type: ApplicationFiled: March 11, 2014Publication date: July 10, 2014Applicant: Cardiac Pacemakers, Inc.Inventors: Karl Gauglitz, Thomas M. Bocek, Mark Rutzer, Lorin W. Matthews, William E. Reagor, Blair Erbstoeszer
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Patent number: 8755886Abstract: An ambulatory or implantable device, such as a pacer, defibrillator, or other cardiac rhythm management device, can tolerate magnetic resonance imaging (MRI) or other noise without turning on an integrated circuit diode by selectively providing a bias voltage that can overcome an expected induced voltage resulting from the MRI or other noise.Type: GrantFiled: December 22, 2010Date of Patent: June 17, 2014Assignee: Cardiac Pacemakers, Inc.Inventors: Nicholas J. Stessman, Michael J. Lyden, Thomas M. Bocek, William J. Linder, Joseph M. Bocek
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Patent number: 8710826Abstract: Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.Type: GrantFiled: October 27, 2011Date of Patent: April 29, 2014Assignee: Cardiac Pacemakers, Inc.Inventors: Karl Gauglitz, Thomas M. Bocek, Mark Rutzer, Lorin W. Matthews, William E. Reagor, Blair Erbstoeszer
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Patent number: 8676335Abstract: An apparatus comprises a transceiver configured to communicate wirelessly with an IMD and a processor communicatively coupled to the transceiver. The processor is configured to detect an error in a data unit received from the IMD, transmit a series of synchronization signals during an uninterrupted communication sequence, and receive, for each synchronization signal, a new data unit and the number of requested duplicate data units from the IMD. Each synchronization signal includes an echo code, wherein the echo code corresponds to a request for a number of duplicate data units to be sent in response to detecting the error in the data unit received during said uninterrupted communication sequence. The number of duplicate data units corresponds to a value of the echo code, and a duplicate data unit corresponds to a data unit previously transmitted by the IMD during said uninterrupted communication sequence.Type: GrantFiled: October 24, 2008Date of Patent: March 18, 2014Assignee: Cardiac Pacemakers, Inc.Inventors: Mehdi Katoozi, Kenneth F. Cowan, Thomas M. Bocek, Mark Rutzer, Scott Vanderlinde, Prashant Rawat
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Publication number: 20120046707Abstract: Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.Type: ApplicationFiled: October 27, 2011Publication date: February 23, 2012Inventors: Karl Gauglitz, Thomas M. Bocek, Mark Rutzer, Lorin W. Matthews, William E. Reagor, Blair Erbstoeszer
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Patent number: 8049489Abstract: Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.Type: GrantFiled: July 26, 2006Date of Patent: November 1, 2011Assignee: Cardiac Pacemakers, Inc.Inventors: Karl Gauglitz, Thomas M. Bocek, Mark Rutzer, Lorin W. Matthews, William E. Reagor, Blair Erbstoeszer
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Publication number: 20110160803Abstract: An ambulatory or implantable device, such as a pacer, defibrillator, or other cardiac rhythm management device, can tolerate magnetic resonance imaging (MRI) or other noise without turning on an integrated circuit diode by selectively providing a bias voltage that can overcome an expected induced voltage resulting from the MRI or other noise.Type: ApplicationFiled: December 22, 2010Publication date: June 30, 2011Inventors: Nicholas J. Stessman, Michael J. Lyden, Thomas M. Bocek, William J. Linder, Joseph M. Bocek
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Publication number: 20080071168Abstract: Systems and methods for sensing external magnetic fields in implantable medical devices are provided. One aspect of this disclosure relates to an apparatus for sensing magnetic fields. An apparatus embodiment includes a sensing circuit with at least one inductor having a magnetic core that saturates in the presence of a magnetic field having a prescribed flux density. The apparatus embodiment also includes an impedance measuring circuit connected to the sensing circuit. The impedance measuring circuit is adapted to measure impedance of the sensing circuit and to provide a signal when the impedance changes by a prescribed amount. According to an embodiment, the sensing circuit includes a resistor-inductor-capacitor (RLC) circuit. The impedance measuring circuit includes a transthoracic impedance measurement module (TIMM), according to an embodiment. Other aspects and embodiments are provided herein.Type: ApplicationFiled: July 26, 2006Publication date: March 20, 2008Inventors: Karl Gauglitz, Thomas M. Bocek, Mark Rutzer, Lorin W. Matthews, William E. Reagor, Blair Erbstoeszer