Browse Technologies

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Optical Spectroscopic Detection of Cell and Tissue Death

A method for differentiating malignant in vivo liver tissues from normal in vivo liver tissues of a living subject includes the steps of: (a) illuminating a first area and a second area of in vivo liver tissues of the living subject with a first excitation light, (b) measuring an intensity of fluorescent light emitted from each of the first area and the second area of in vivo liver tissues in response to the first excitation light as a function of wavelength so as to obtain a first and a second fluorescent spectra, respectively, (c) illuminating the first area and the second area of in vivo liver tissues with a second excitation light, (d) measuring an intensity of diffilse light reflected by each of the first area and the second area of in vivo liver tissues in response to the second excitation light as a function of wavelength so as to obtain a first and a second diffused reflectance spectra, respectively, and (e) identifying one of the first area and the second area of in vivo liver tissues as malignant liver tissues and the other one of the first area and the second area of in vivo liver tissues as nomial liver tissues, by comparing the first fluorescence spectrum and the second florescence spectrum, and comparing the first diffused reflection spectrum and the second diffused reflection spectrum.


Licensing Contact

Ashok Choudhury

615.322.2503

Aliquot Delivery System

Vanderbilt researchers have developed a novel device for accurately delivering a small aliquot of liquid pharmaceutical agent to a treatment site. This system enables more precise dosage and eliminates expensive waste found in conventional methods.


Licensing Contact

Ashok Choudhury

615.322.2503
Medical Devices

Combined Raman Spectroscopy- Optical Coherence Tomography (RS-OCT)

Vanderbilt researchers have developed an optical system for the differentiation of normal and cancerous skin lesions. The system combines the diagnostic prowess of two separate techniques to provide non-invasive, real-time, in-situ evaluation of lesions.


Licensing Contact

Ashok Choudhury

615.322.2503

Solid-State Erbium Laser Surgical Cutting Probe

The present system developed by Vanderbilt researchers provides a combination of a base laser pump connected to a laser surgical probe via a connection assembly. The surgical probe has a disposable tip wherein the Er:YAG lasing occurs. This system is useful in laser surgeries involving high precision and appropriate power levels. In particular, intraocular surgeries could benefit from the use of such a system.


Licensing Contact

Taylor Jordan

615.936.7505
Medical Devices

Trimodal Handheld Probe Based on Raman Spectroscopy and Confocal Imaging for Cancer Detection

This technology relates to a device and method for non-invasive evaluation of a target of interest of a living subject, and in particular to devices and methods that integrate confocal imaging with confocal Raman spectroscopy, for non-invasive evaluation of the biochemical compositions and morphological details of normal and cancerous skin lesions of a living subject.


Licensing Contact

Ashok Choudhury

615.322.2503

System and Method for Measuring of Lung Vascular Injury by Ultrasonic Velocity and Blood Impedance

The present invention is a method for assessing capillary permeability to determine vascular lung injury without requiring the injection of radioactive material or requiring the sampling of blood. The method includes measuring impedance and ultrasonic velocity of blood flow through a lung. A hypertonic bolus is injected into the blood flow, and measurements of the blood flow are taken to determine the ultrasonic velocity and the electrical impedance of the blood. These measurements are used to calculate the capillary transport quantity, which is the product of the reflection coefficient for movement of fluid across the capillary barrier and the filtration coefficient. The measured value of the capillary transport quantity can then be compared to a conventional capillary transport quantity for healthy lungs, and one can determine injury by a significant decrease in the measured capillary transport quantity as compared to the standard measurements. Furthermore, a comparison of the osmotic transient graphs of the plotted indicator curves can serve to acknowledge lung vascular injury. Lung injury can be determined from the measured data when the point of osmotic equilibrium (where the indicator curve crosses the baseline) is significantly delayed as compared to the point of osmotic equilibrium plotted for a healthy lung.


Licensing Contact

Masood Machingal

615.343.3548

System for Determining the Orientation of a Bone Implanted Post

A method for determining an orientation of a base to which a fiducial marker is detachably mounted. The method includes the steps of determining the axis of symmetry for the fiducial marker and choosing the determined axis of symmetry of the fiducial marker as the axis of symmetry of the base.


Licensing Contact

Taylor Jordan

615.936.7505
Medical Devices

Optical Stimulation of the Auditory Nerve

A cochlear implant placed in a cochlea of a living subject for stimulating the auditory system of the living subject, where the auditory system comprises auditory neurons. In one embodiment, the cochlear implant includes a plurality of light sources, {L.sub.i}, placeable distal to the cochlea, each light source, L.sub.1, being operable independently and adapted for generating an optical energy, E.sub.i, wherein i=1, . . . , N, and N is the number of the light sources, and delivering means placeable in the cochlea and optically coupled to the plurality of light sources, {L.sub.i}, such that in operation, the optical energies {E.sub.i} generated by the plurality of light sources {L.sub.i} are delivered to target sites, {G.sub.i}, of auditory neurons, respectively, wherein the target sites G.sub.1 and G.sub.N of auditory neurons are substantially proximate to the apical end and the basal end of the cochlea, respectively.


Licensing Contact

Ashok Choudhury

615.322.2503
Medical Devices

System for Determining the Orientation of a Bone-Implanted Anchor

A method for simplifying the process of designing a platform for minimally invasive surgery. The platform is designed to attach to a set of bone-implanted anchors attached to the patient. This method makes the fitting of the platform to the anchors simpler and easier.


Licensing Contact

Taylor Jordan

615.936.7505
Medical Devices