Patents by Inventor Harry D. Rowland
Harry D. Rowland 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: 20220211282Abstract: Disclosed is a hemodynamic monitoring system, and method and associated harness device. The method and system are configured to allow a user that has received a permanent sensing implant within their vasculature to place a reader device in a hands free manner in communication with the implant through the chest of the user to measure at least one hemodynamic parameter such as pulmonary artery pressure. The reader device may be worn by the patient with a harness device to be configured to wirelessly communicate with said implant when the patient is in a specific patient state, such as resting, exercising, recovering, seated, or supine. The reader may be configured to take measurements from the implant when the patient is in the specific patient state, in order to acquire data from said implant related to said parameter and to upload said data to an external device.Type: ApplicationFiled: January 6, 2022Publication date: July 7, 2022Inventors: Harry D. Rowland, Michael L. Nagy, Angad Singh, Balamurugan Sundaram, Omid Forouzan, Thomas Wilschke, Stuart Allan Karten, Eric William Olson, Christian Gunnar Denhart, Cezanne-Simon Van Rensselaer Farris-Gilbert
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Publication number: 20190142285Abstract: An implant delivery system includes an implant, such as a wireless sensor, a first sheath, and a second sheath. The sheaths extend from a proximal end of the implant delivery system, and at least said first sheath extends to a distal end of said implant delivery system. The first sheath is positioned at least partially within said second sheath. The implant is connected to an exterior surface of the first sheath and positioned near an end of the second sheath. The first sheath and said second sheath are movable with respect to one another to deploy said implant to a desired location.Type: ApplicationFiled: January 9, 2019Publication date: May 16, 2019Inventors: Harry D. Rowland, Michael Nagy, Kevin MacDonald, Alyssa Kurt, Andy Black, Andy Leopold
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Patent number: 10003862Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits a narrowband, fixed frequency excitation pulse to cause the wireless sensor to generate a ring signal. The ring signal corresponds to the value of the physical parameter being sensed. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The low power, simple circuitry required to generate the excitation pulse allows the reader to be a small, battery operated unit. Alternative methods of frequency determination are also disclosed.Type: GrantFiled: April 11, 2013Date of Patent: June 19, 2018Assignee: ENDOTRONIX, INC.Inventors: Harry D. Rowland, Roger Dwight Watkins, Balamurugan Sundaram, Brian Paul, In Soo Ahn, Michael Nagy
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Patent number: 9894425Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The reader uses an ambient reading or other information to select a subset of the possible ring signal frequencies, and tunes or adjusts its circuits and algorithms to focus on that subset.Type: GrantFiled: November 7, 2016Date of Patent: February 13, 2018Assignee: ENDOTRONIX, INC.Inventors: Michael Nagy, Harry D. Rowland, Balamurugan Sundaram
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Patent number: 9867552Abstract: A wireless circuit includes a housing, such as a hermetic housing, and at least one antenna coil wound about a coil axis within the housing. The coil axis may be substantially parallel to at least one wall of the housing, wherein the wall parallel to the coil axis is substantially thinner than other walls of the housing.Type: GrantFiled: June 29, 2012Date of Patent: January 16, 2018Assignee: ENDOTRONIX, INC.Inventors: Harry D. Rowland, Michael Nagy
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Publication number: 20170055048Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The reader uses an ambient reading or other information to select a subset of the possible ring signal frequencies, and tunes or adjusts its circuits and algorithms to focus on that subset.Type: ApplicationFiled: November 7, 2016Publication date: February 23, 2017Inventors: Michael Nagy, Harry D. Rowland, Balamurugan Sundaram
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Patent number: 9489831Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The reader uses an ambient reading or other information to select a subset of the possible ring signal frequencies, and tunes or adjusts its circuits and algorithms to focus on that subset.Type: GrantFiled: September 30, 2013Date of Patent: November 8, 2016Assignee: Endotronix, Inc.Inventors: Michael Nagy, Harry D. Rowland, Roger Dwight Watkins, Balamurugan Sundaram
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Patent number: 8894582Abstract: A cardiac pressure monitoring device includes a fixation member defining a central opening to facilitate slidably positioning the fixation device about a pacemaker lead wire. At least one sensor is coupled to the fixation member. The at least one sensor is configured to sense a physical, chemical, and/or physiological parameter within a cardiac chamber.Type: GrantFiled: January 25, 2008Date of Patent: November 25, 2014Assignee: Endotronix, Inc.Inventors: Anthony I. Nunez, Harry D. Rowland
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Publication number: 20140155710Abstract: A wireless circuit includes a housing, such as a hermetic housing, and at least one antenna coil wound about a coil axis within the housing. The coil axis may be substantially parallel to at least one wall of the housing, wherein the wall parallel to the coil axis is substantially thinner than other walls of the housing.Type: ApplicationFiled: June 29, 2012Publication date: June 5, 2014Inventors: Harry D. Rowland, Michael Nagy
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Publication number: 20140028467Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The reader uses an ambient reading or other information to select a subset of the possible ring signal frequencies, and tunes or adjusts its circuits and algorithms to focus on that subset.Type: ApplicationFiled: September 30, 2013Publication date: January 30, 2014Applicant: Endotronix, Inc.Inventors: Michael Nagy, Harry D. Rowland, Roger Dwight Watkins, Balamurugan Sundaram
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Patent number: 8570186Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The reader uses an ambient reading or other information to select a subset of the possible ring signal frequencies, and tunes or adjusts its circuits and algorithms to focus on that subset.Type: GrantFiled: April 25, 2012Date of Patent: October 29, 2013Assignee: Endotronix, Inc.Inventors: Michael Nagy, Harry D. Rowland, Roger Dwight Watkins, Balamurugan Sundaram
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Patent number: 8493187Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits a narrowband, fixed frequency excitation pulse to cause the wireless sensor to generate a ring signal. The ring signal corresponds to the value of the physical parameter being sensed. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The low power, simple circuitry required to generate the excitation pulse allows the reader to be a small, battery operated unit. Alternative methods of frequency determination are also disclosed.Type: GrantFiled: March 19, 2010Date of Patent: July 23, 2013Assignee: Endotronix, Inc.Inventors: Harry D. Rowland, Roger Dwight Walking, Balamurugan Sundaram, Bryan Paul, In Soo Ahn, Michael Nagy
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Patent number: 8432265Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined.Type: GrantFiled: March 19, 2012Date of Patent: April 30, 2013Assignee: Endotronix, Inc.Inventors: Harry D. Rowland, Roger Dwight Watkins, Balamurugan Sundaram
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Publication number: 20120319862Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The reader uses an ambient reading or other information to select a subset of the possible ring signal frequencies, and tunes or adjusts its circuits and algorithms to focus on that subset.Type: ApplicationFiled: April 25, 2012Publication date: December 20, 2012Inventors: Michael Nagy, Harry D. Rowland, Roger Dwight Watkins, Balamurugan Sundaram
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Publication number: 20120286934Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined.Type: ApplicationFiled: March 19, 2012Publication date: November 15, 2012Inventors: Harry D. Rowland, Roger Dwight Watkins, Balamurugan Sundaram
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Patent number: 8154389Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined.Type: GrantFiled: April 7, 2009Date of Patent: April 10, 2012Assignee: Endotronix, Inc.Inventors: Harry D. Rowland, Roger Dwight Watkins, Balamurugan Sundaram
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Publication number: 20100308974Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits a narrowband, fixed frequency excitation pulse to cause the wireless sensor to generate a ring signal. The ring signal corresponds to the value of the physical parameter being sensed. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The low power, simple circuitry required to generate the excitation pulse allows the reader to be a small, battery operated unit. Alternative methods of frequency determination are also disclosed.Type: ApplicationFiled: March 19, 2010Publication date: December 9, 2010Inventors: Harry D. Rowland, Roger Dwight Walking, Balamurugan Sundaram, Bryan Paul, In Soo Ahn, Michael Nagy
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Patent number: 7677107Abstract: A method for fabricating a wireless pressure sensor includes providing a first substrate. A portion of the first substrate is controllably displaced to form a cavity. A conducting material is patterned on the first substrate to form a first capacitor plate and a first inductor. A second substrate is provided. A conducting material is patterned on the second substrate to form a second capacitor plate. The second substrate is attached to the first substrate to seal the cavity such that at least a portion of the second substrate is movable with respect to the first substrate within the cavity in response to a change in an external condition. A hermetically sealed capacitive pressure sensor may reside in the cavity between the first substrate and second substrate.Type: GrantFiled: July 2, 2008Date of Patent: March 16, 2010Assignee: Endotronix, Inc.Inventors: Anthony I. Nunez, Harry D. Rowland
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Publication number: 20090189741Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined.Type: ApplicationFiled: April 7, 2009Publication date: July 30, 2009Inventors: Harry D. Rowland, Roger Dwight Watkins, Balamurugan Sundaram
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Publication number: 20090177225Abstract: A vascular closure device including a first retainer positioned on an internal surface of a vessel wall defining a passage through a vessel. A second retainer is coupled to the first retainer and positioned on an outer surface of the vessel wall to seal an opening defined through the vessel wall. A sensor is coupled to the first retainer and configured to sense a physical, chemical, and/or physiological parameter within the passage.Type: ApplicationFiled: January 25, 2008Publication date: July 9, 2009Inventors: Anthony Nunez, Harry D. Rowland