Sustainx, Inc.

Dartmouth College

Dax Kepshire

Troy O McBride

Benjamin R Bollinger

Michael V Schaefer

Alexander Bell

Adam Rauwerdink

Jon Bessette

Keith Douglas Paulsen

Brian William Pogue

David W Roberts

Frederic Leblond

Alex Hartov

Scott Christian Davis

Arne LaVen

Arne La Ven

A tomographic fluorescent imaging device for imaging fluorophores in biological tissues has a scanned laser for scanning the tissue and a camera for receiving light from the biological tissue at an angle to the beam at a second wavelength ten or more nanometers greater in wavelength than the wavelength of the laser. Use of both intrinsic and extrinsic fluorophores is described. Images are obtained at each of several positions of the beam. An image processing system receives the series of images, models a path of the beam through the tissue, and determines depth of fluorophore in tissue from intersections of the modeled path of the beam and the path of the received light. The laser is of 600 nm or longer wavelength, to provide penetration of tissue. The imaging device is used during surgery to visualize lesions of various types to ensure complete removal of malignant tumors. An alternative embodiment uses differences in intensity of fluorescent radiation from tissue as observed at different wavelengths to determine depth of fluorophore in tissue. An embodiment operates at multiple wavelengths to construct tomographic images of chromophores, such as hemoglobin, and is capable of dynamic imaging.

Method and apparatus for depth-resolved fluorescence, chromophore, and oximetry imaging for lesion identification during surgery

In various embodiments, foam is compressed to store energy and/or expanded to recover energy.

Systems and methods for efficient two-phase heat transfer in compressed-air energy storage systems

In various embodiments, energy-storage systems are based upon an open-air arrangement in which pressurized gas is expanded in small batches from a high pressure of, e.g., several hundred atmospheres to atmospheric pressure. The systems may be sized and operated at a rate that allows for near isothermal expansion and compression of the gas.

Systems and methods for energy storage and recovery using gas expansion and compression

In various embodiments, a pneumatic cylinder assembly is coupled to a mechanism that converts motion of a piston into electricity, and vice versa, during expansion or compression of a gas in the pneumatic cylinder assembly.

Systems and methods for compressed-gas energy storage using coupled cylinder assemblies

Growing community of inventors

Amesbury, MA, United States of America

Dax Kepshire