University of Pittsburgh

Virginia Commonwealth University

Phase2 Microtechnologies, Inc.

Sung Kwon Cho

Youngjae Chun

Bryan W Tillman

J Christopher Flaherty

William Richard Wagner

R Maxwell Flaherty

William Walker Clark

Alexander Star

Young Jae Chun

Yanfei Chen

Woon-Hong Yeo

David W Wagner

Sean Ihn Young Hwang

Sang Ho Ye

Hou-Yu Chen

Seungil Kim

Fang-Wei Liu

Yuejun Zhao

Timothy J Syciarz

Brian T Jankowitz

Yongkuk Lee

Connor Howe

A sensor system for detecting at least one analyte in an environment includes a dehumidifier system including at least one of a condenser unit and a desiccant unit and a sensor responsive to the analyte in fluid connection with the dehumidifier system.

Sensors with dehumidifiers

A zwitterionic polysiloxane polymer (e.g., a polyurethane elastomer) composition having poly(dialkylsiloxane) blocks and a zwitterionic moiety is prepared by the copolymerization of a poly(dialkylsiloxane) diol, a diisocyanate, a tertiary amine alkyl diol, and a poly(dialkylsiloxane) diamine to form a poly(urethane urea) copolymer. A substituted saturated heterocylic compound is reacted with the tertiary amine of the poly(urethane urea) copolymer to introduce a zwitterionic group into the poly(urethane urea) copolymer backbone. A polysiloxane polymer having a zwitterionic moiety is prepared by reacting a diallyl tertiary amine compound and a substituted saturated heterocylic compound to form a diallyl zwitterionic macromer and cross-linking a vinyl terminated poly(dialkylsiloxane) and the diallyl zwitterionic macromer with a curing agent to introduce a zwitterionic group into the poly(dialkylsiloxane) polymer.

Zwitterionic polysiloxane for biomedical devices

A system includes a delivery system a tube having a first open end and a second closed end, wherein the inner wall of the tube exhibits or includes surface roughness, a first liquid volume including a first liquid within the tube, and a first gas volume within the tube adjacent the first open end and separating the first liquid volume from a surrounding environment. The system further include a drive system, remote from the delivery system, which is configured to transmit a signal to controllably oscillate the first gas volume and one or more other gas volumes within the tube.

On-demand dose controllable drug releasing devices and methods

The present disclosure concerns embodiments of an implantable perfusion device that can be implanted in an injured blood vessel to control bleeding without occluding the vessel. In one specific implementation, the perfusion device can be implanted percutaneously into a patient's descending aorta to control bleeding at the site of a ruptured portion of the aorta (known as torso hemorrhage) while still allowing for the antegrade flow of blood from a location upstream of the ruptured portion of the aorta to a location downstream of the ruptured portion of the aorta. The perfusion device can be left inside the patient as the patient is transported to a medical facility where the injury can be repaired. Following repair of the vessel, the perfusion device can be withdrawn from the patient.

Perfusion device for treating an injured blood vessel

A diaphragm-based sensor includes a deflectable diaphragm, a base layer opposite the diaphragm, and a corrugated wall extending between the diaphragm and the base layer. The diaphragm is suspended over a cavity enclosed by the diaphragm, the base layer and the corrugated wall. The diaphragm includes a first electrode and the base layer includes a second electrode such that a capacitance between the first and second electrodes changes when the diaphragm is deflected relative to the cavity.

Diaphragm-based sensor with a corrugated sidewall

The invention relates to endovascular medical implant devices, systems and methods that including a sensing device and a flow diverter device, which are effective to monitor intra-/post-operative hemodynamic properties in the location of a cerebral aneurysm and, hemodynamic alterations following placement of the system for treating ischemic diseases in carotid, coronary and peripheral arteries. The sensing device includes wireless, non-thrombogenic, highly stretchable, ultra-low profile flow sensors.

Ultra-low profile wireless flow sensors to monitor hemodynamic alterations in the vascular system

A system for obtaining a pH measurement includes a disposable probe and a reader. The disposable probe comprises multiple indicating electrodes and at least one reference electrode. The reader is configured to operably engage with the disposable probe and provide pH information of a sample.

Measurement device with sensor array

Growing community of inventors

Pittsburgh, PA, United States of America

Sung Kwon Cho