The University of Texas System

Keck Graduate Institute

Luis A Ochoa

Ryan B Wicker

Francisco Medina

Christopher Elkins

Brenda K Mann

Karina Arcaute

Francisco Morales Acuna

Alvaro N Gurovich

An ultrasound transducer probe holder device comprising a support piece; a base connected to the support piece; a cylindrical orifice within the support piece; a housing extending from the orifice and defining a cavity; a sleeve for insertion within the orifice; and an adjustment screw fitted in the housing for contact with the sleeve. The device supports and maintains the position of an ultrasound transducer probe to provide for a hands-free application of the device during different modalities of exercise required to instigate hyperemic conditions while providing x, y, z, positional adjustments of the probe relative to the patient.

Ultrasound transducer holder for vascular assessments during hyperemic blood flow

A preferred embodiment of the present invention provides a method and system for building cost-efficient biocompatible hydrogel constructs using stereolithography. Hydrogel constructs may be used in, for example, multi-lumen nerve regeneration conduits and other tissue engineering scaffolds with embedded channel architecture that facilitate tissue regeneration through possible incorporation of precisely located bioactive agents, cells, and other desired inert and/or active chemical agents and devices. Another preferred embodiment of the present invention provides a method of fabricating a hydrogel construct comprising: solidifying a first solution into a first construct layer with a first energy dosage using stereolithography, the first solution comprising: a first polymer; and a first photoinitiator, wherein the first polymer and first photoinitiator are of a first concentration.

Hydrogel constructs using stereolithography

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El Paso, TX, United States of America

Luis A Ochoa