Available Technologies

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Medical Devices

41 available technologies

Point of Care Device for Confirmation of Intravenous (IV) Catheter Placement and Measurement of Peripheral Venous Pressures

Vanderbilt researchers have designed a low-cost, point-of-care device that non-invasively monitors peripheral venous pressure (PVP) to ensure proper placement of peripheral intravenous (PIV) catheters in patients. Use of this device will ensure proper administration of intravenous fluids and intravenous drugs. The device will also prevent the administration of fluid and potent pharmacologic agents into the subcutaneous tissue or fascia, commonly known as "IV infiltration."

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.

Split-Tube Flexure Joint with Greater Range of Motion

Vanderbilt University researchers have developed an improved flexure based revolute joint which has better properties than a conventional flexure joint. Its split tube design enables a greater range of motion and withstands more load than conventional flexures while eliminating stick-slip and backlash behaviors.

Direct Laser and Ultraviolet Lithography of Porous Silicon Photonic Crystal Devices

We have developed a technique to process photolithographically porous silicon heterostructures and photonic crystal architectures, using laser and ultraviolet light exposure and a subsequent alcoholic bath treatment. This technique would be the first method to process directly the optical properties of porous silicon multilayers, heterostructures, and photonic crystal architectures.

Catheter Having Temperature Controlled Anchor and Related Methods

Heart valve disease is the 3rd most prevalent source of cardiovascular disease, leading to approximately 20,000 deaths per year in the U.S. alone. Moreover, there are an estimated 41,000 mitral valve procedures performed in the U.S. each year. The only effective, long-term treatment for mitral valve disease is open-chest valve replacement surgery, which is highly undesirable for elderly patients. Thus, there is a pressing need to develop novel percutaneous strategies for treatment that will reduce the number of open-chest surgeries. David Merryman and colleagues have developed a new, combined catheter that uses cryo temperatures to adhere to moving mitral valve leaflets and radiofrequency ablation to alter the compliance of the leaflet tissue to prevent prolapse and regurgitation.

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.

Adjustable Universal Platform for Surgical Navigation, Approach, and Implantation

A surgical platform usable for performing a surgical procedure. In one embodiment, the surgical platform comprises a base portion configured to receive at least one probe; a plurality of adjustable legs configured to support the base portion, each adjustable legs having a first end portion and an opposite, second end potion defining a length therebetween; and at least one movable portion configured to adjust the length of at least one adjustable leg.

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.

Helical Peristaltic Nanopump for BioMEMS Devices

A metering rotary nanopump for driving BioMEMS and microfluidic systems.

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.

Microcatheter with Hemodynamic Guide Structure

A catheter device for therapeutic and diagnostic use within a human vascular system in difficult to access locations such as bifurcating cerebral arteries. The distal end of the catheter body comprises a flexible material so that the catheter tip can deflect laterally towards the vessel wall in response to the hemodynamic lift. An intermediate section of the catheter body between the hub and the tip provides a semi-rigid control connection whereby pushing, pulling, and rotation of the hub produces a corresponding movement of the catheter tip.

Wrap Spring Clamp

A clamp with helical coils or springs to receive and secure cylindrical rods; e.g., for external fixators. The clamp includes quick connection and tightening around the rod . These clamps have multiple uses including use as a device for securing a bone, scaffolding, and other applications where gripping 360 degrees around the rod offers significant advantage.

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.

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