University of Pittsburgh

Michael A Rothfuss

Ervin Sejdic

Michael L Gimbel

Marlin H Mickle

Peter J Hawrylak

Murat Akcakaya

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.

Touch probe passively powered wireless stent antenna for implanted sensor powering and interrogation

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, V, from the scattered signal, extract a plurality of features from V, 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.

System for automatic and early detection flap failure

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.

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Pittsburgh, PA, United States of America

Michael A Rothfuss