Patents by Inventor Michael A. Rothfuss
Michael A. Rothfuss 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: 20240041422Abstract: A system for monitoring free flap patency includes transmit and receive transducers structured to be coupled to a blood vessel, and a plurality of circuitry modules structured to insonify a blood flow volume within the blood vessel and receive a scattered signal from the receive transducer, extract a baseband Doppler blood flow signal, VBASEBAND, from the scattered signal, extract a plurality of features from VBASEBAND, and classify the plurality of features and generate a binary signal based on the classification of the plurality of features, wherein the binary signal will have a first state responsive to the classification of the plurality of features indicating that a flow rate within the blood vessel is less than a predetermined level and a second state responsive to the classification of the plurality of features indicating the flow rate within the blood vessel is greater than or equal to the predetermined level.Type: ApplicationFiled: October 11, 2023Publication date: February 8, 2024Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: MICHAEL A. ROTHFUSS, ERVIN SEJDIC, MICHAEL L. GIMBEL, MURAT AKCAKAYA
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Patent number: 11877885Abstract: A system for monitoring free flap patency includes transmit and receive transducers structured to be coupled to a blood vessel, and a plurality of circuitry modules structured to insonify a blood flow volume within the blood vessel and receive a scattered signal from the receive transducer, extract a baseband Doppler blood flow signal, VBASEBAND, from the scattered signal, extract a plurality of features from VBASEBAND, and classify the plurality of features and generate a binary signal based on the classification of the plurality of features, wherein the binary signal will have a first state responsive to the classification of the plurality of features indicating that a flow rate within the blood vessel is less than a predetermined level and a second state responsive to the classification of the plurality of features indicating the flow rate within the blood vessel is greater than or equal to the predetermined level.Type: GrantFiled: July 20, 2018Date of Patent: January 23, 2024Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Michael A. Rothfuss, Ervin Sejdic, Michael L. Gimbel, Murat Akcakaya
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TOUCH PROBE PASSIVELY POWERED WIRELESS STENT ANTENNA FOR IMPLANTED SENSOR POWERING AND INTERROGATION
Publication number: 20220151493Abstract: A system and method for wirelessly and passively powering and/or interrogating an implanted stent using a touch probe assembly through a near-field electrical connection not over an air interface. The stent apparatus includes at least one stent member functioning as an antenna and an electronics module coupled to the at least one stent member. Also, a wirelessly and passively powered power meter for use with implanted stents. The power meter includes an electronics module coupled to a stent member, wherein the electronics module includes a programmable oscillator structured to generate an oscillating signal that is proportional to an amount of AC power received by the implantable stent apparatus power meter through the stent member.Type: ApplicationFiled: February 3, 2022Publication date: May 19, 2022Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: MICHAEL A. ROTHFUSS, ERVIN SEJDIC, MICHAEL L. GIMBEL -
Touch probe passively powered wireless stent antenna for implanted sensor powering and interrogation
Patent number: 11272840Abstract: A system and method for wirelessly and passively powering and/or interrogating an implanted stent using a touch probe assembly through a near-field electrical connection not over an air interface. The stent apparatus includes at least one stent member functioning as an antenna and an electronics module coupled to the at least one stent member. Also, a wirelessly and passively powered power meter for use with implanted stents. The power meter includes an electronics module coupled to a stent member, wherein the electronics module includes a programmable oscillator structured to generate an oscillating signal that is proportional to an amount of AC power received by the implantable stent apparatus power meter through the stent member.Type: GrantFiled: May 5, 2017Date of Patent: March 15, 2022Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Michael A. Rothfuss, Ervin Sejdic, Michael L. Gimbel -
Publication number: 20200222026Abstract: A system for monitoring free flap patency includes transmit and receive transducers structured to be coupled to a blood vessel, and a plurality of circuitry modules structured to insonify a blood flow volume within the blood vessel and receive a scattered signal from the receive transducer, extract a baseband Doppler blood flow signal, VBASEBAND, from the scattered signal, extract a plurality of features from VBASEBAND, and classify the plurality of features and generate a binary signal based on the classification of the plurality of features, wherein the binary signal will have a first state responsive to the classification of the plurality of features indicating that a flow rate within the blood vessel is less than a predetermined level and a second state responsive to the classification of the plurality of features indicating the flow rate within the blood vessel is greater than or equal to the predetermined level.Type: ApplicationFiled: July 20, 2018Publication date: July 16, 2020Applicant: University of Pittsburgh-Of the Commonwealth System of Higher EducationInventors: Michael A. Rothfuss, Ervin Sejdic, Michael L. Gimbel, Murat Akcakaya
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TOUCH PROBE PASSIVELY POWERED WIRELESS STENT ANTENNA FOR IMPLANTED SENSOR POWERING AND INTERROGATION
Publication number: 20190125189Abstract: A system and method for wirelessly and passively powering and/or interrogating an implanted stent using a touch probe assembly through a near-field electrical connection not over an air interface. The stent apparatus includes at least one stent member functioning as an antenna and an electronics module coupled to the at least one stent member. Also, a wirelessly and passively powered power meter for use with implanted stents. The power meter includes an electronics module coupled to a stent member, wherein the electronics module includes a programmable oscillator structured to generate an oscillating signal that is proportional to an amount of AC power received by the implantable stent apparatus power meter through the stent member.Type: ApplicationFiled: May 5, 2017Publication date: May 2, 2019Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Michael A. Rothfuss, Ervin Sejdic, Michael L. Gimbel -
Patent number: 8514056Abstract: A system for estimating the current position of an asset within a location that includes a transponder associated with the asset, a plurality of wireless interface devices provided within the location, and a central computer system in electronic communication with the wireless interface devices. The central computer system is adapted to: (i) identify a particular one or more of the wireless interface devices that have received a wireless signal from the transponder, and (ii) determine an estimate of the current position based on the identified particular one or more of the wireless interface devices.Type: GrantFiled: September 21, 2009Date of Patent: August 20, 2013Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Marlin H. Mickle, Peter J. Hawrylak, Michael A. Rothfuss
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Publication number: 20130116575Abstract: A Doppler blood flow monitoring system comprises a sensor cuff capable of being secured around an exterior surface of a patient's vessel, at least one transducer attached to the sensor cuff for generating signals into the vessel and for receiving said signals, and a transmitter in communication with the at least one transducer and capable of wirelessly transmitting an RF signal external to the patient's body. The system also comprises a receiver capable of receiving the RF signal from the transmitter and being capable of generating an audible sound or signal commensurate with detected flow. The system can take advantage of pulse wave or continuous wave Doppler technology.Type: ApplicationFiled: November 5, 2012Publication date: May 9, 2013Inventors: Marlin MICKLE, Michael A. ROTHFUSS, Michael L. GIMBEL
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Publication number: 20100073188Abstract: A system for estimating the current position of an asset within a location that includes a transponder associated with the asset, a plurality of wireless interface devices provided within the location, and a central computer system in electronic communication with the wireless interface devices. The central computer system is adapted to: (i) identify a particular one or more of the wireless interface devices that have received a wireless signal from the transponder, and (ii) determine an estimate of the current position based on the identified particular one or more of the wireless interface devices.Type: ApplicationFiled: September 21, 2009Publication date: March 25, 2010Applicant: University of Pittsburgh- Of the Commonwealth System of Higher EducationInventors: Marlin H. Mickle, Peter J. Hawrylak, Michael A. Rothfuss