Johns Hopkins University

USA As Represented by Secretary of the Navy

Joseph L Abita

Bliss G Carkhuff

Jack G Bebee

Robert W Massof

Wolfger Schneider

Jacek L Mostwin

Leonard R Proctor

Ronald L Stanford

Daniel A Ossing

John Sadowsky

Roddy Frankel

The present invention provides automated control of aural irrigation by utilizing a process controller in connection with an irrigation supply unit and irrigation delivery unit. Sensors situated in the irrigation supply unit and irrigation delivery unit provide data feedback to the process controller enabling essentially instantaneous and precise control of operational parameters. In addition, data customized to individual patients as well as historical data for use in analysis is stored in and processed by the control processor to increase the accuracy and utility of the aural irrigation system. Further, patient response data (e.g., from an ENG sensor) is also input to the process controller, thereby enabling extremely fast and accurate test analysis with minimal effort by the device operator.

Vestibular irrigator test system (VITS)

A device for passively measuring intraocular pressure of a patient including an in vivo sensor and an instrument external to the patient for remotely energizing the sensor, thereby permitting the instrument to determine the intraocular pressure. The device directly and continuously measures the intraocular pressure of a patient. The in vivo sensor in the intraocular pressure monitor includes a capacitive pressure sensor and an inductive component. An instrument, external to the patient, measures the pressure, provides readout of the pressure values and determines the intraocular pressure.

Method for monitoring intraocular pressure using a passive intraocular pressure sensor and patient worn monitoring recorder

A telemetric in vivo bladder urine monitor system is disclosed. The invention includes a small, buoyant recorder that floats in the bladder of an animal and telemetrically relays data to an external receiver. The invention may be used in measuring urinary tract pressure in diagnosing and treating urinary tract infections, anomalous bladder contraction, etc. The invention may also be used as a monitoring system for bed wetting syndrome, artificial bladders and sphincters.

Telemetric in vivo bladder urine monitor system

An intravenous feed anchor system (IVFAS) that allows for unconstrained movement of a patient and IV configuration. The IVFAS includes an IV line clamp device for clamping a section of an IV line, an attach device for receiving and securing the IV line clamp device, and a securing device for securing an adjustable tie down to a patient. The IV attach device receives the IV line clamp device in a free floating condition. This prevents excessive motion and forces, caused by reasonable, unexpected or unusual conditions, from removing, or interrupting IV treatment. The IVFAS also keeps the section of the IV line between the anchor and insertion points in close proximity to the patient. This eliminates large IV line loops which have a tendency to snag or get pulled from environmental animate and inanimate objects. The IVFAS is quickly and easily attached and detached.

Intravenous anchor system (IVFAS)

The device assists those who are visually handicapped and, in particular, warns blind or visually impaired travellers that they have entered a potentially dangerous area proximal to the edge of boarding platforms of the type typically found in public railway transit systems. An InfraRed Integrated Information System consists of an array of infrared transmitters and a portable detector/warning device to be held by the blind traveller. The transmitters create a beam of infrared light which bathes the section of the platform proximal to the platform edge. As the traveller moves into the region of the platform covered by the emission, the sensors in the warning device are activated and by audio, tactile or other stimuli alert the traveller of entry into the danger zone.

Passive alarm system for blind and visually impaired individuals

A device which assists those who are visually impaired or handicapped and, in particular, a system for warning blind or visually impaired travelers that they have entered a potentially dangerous area proximal to an edge of boarding platforms of the type typically found in railway and other types of transit systems. An Infrared Integrated Indicating System (IRIIS) includes an array of optical emitters and a portable detector/warning device to be held by a visually handicapped traveler. The emitters create a beam of light which bathes a section of the platform proximal to the platform edge. As the visually handicapped traveler moves into a region of the platform covered by the beam of light, a first indicator, such as sensors in the warning device, is activated and by audio, tactile or other stimuli, alert the visually handicapped traveler of entry into a hazard zone. A second indicator provides additional confirmation to the visually handicapped traveler that doors are open as he or she prepares to board.

Alarm system for blind and visually impaired individuals

A non-magnetic alloy of a volume Vcu of copper and a volume Vmn of manganese. Vmn/Vcu is made equal to -Xcu/Xmn where Xcu is the susceptibility of the copper and Xmn is the susceptibility of the manganese. Vmn/Vcu is experimentally predicted to be 1.04 percent by volume.

Non-magnetic alloy

A method for making a non-magnetic alloy structure. Alloy samples are for by taking three volumes V1 of host matrix material having a first susceptibility X1 and adding to each of them one of three volumes V2, V3 and V4 of a magnetically compensating material having a second opposite susceptibility X2. The volume V3 is chosen so that (V1)(X1) =(V3)(X2). The volumes V2 and V4 are chosen so that V3/V1-V2/V1 is equal to 0.299 percent and V4/V1-V3/V1 is equal to 0.531 percent. The magnetizations of the alloy samples are determined and ploted as a function of their volume percentages. A volume percentage V5/V1 is determined from the plot, such that the volume percentage, V5/V1, has zero magnetization. This volume percentage V5/V1 is used to make nonmagnetic alloy structures having this volume percentage V5/V1.

Method for making a non-magnetic alloy

The system is a fixture used to nondestructively support electrical circuits for testing. It is particularly useful for physically and electrically mounting circuits which are edge accessed. Support, positioning and contact elements are used in conjunction with a base plate grid and adjustably cooperate through a system of T slots and T shaped projections.

Adaptable multiport test fixture system

The invention provides a method for making a relief mask used for pattern neration in planar thin film overlays, which relief mask is structurally formed to produce intimate contact between a photoresist surface and a masking pattern during exposure of the photoresist surface. The present method comprises the steps of:

Method for making a mask having a sloped relief

A method for preparing the surface of a glass substrate so that resist maial may be directly applied to the surface and adhere thereto. The invention is particularly useful in the fabrication of relief masks used for pattern generation in planar thin film overlays, which masks are used to provide intimate contact between a photoresist surface and a masking pattern during exposure of the photoresist surface. The present method comprises cleaning of the glass substrate, boiling the substrate in trichloroethylene, and heating the substrate to between 160.degree. and 200.degree.C. Resist material may then be applied directly to the glass substrate.

Growing community of inventors

Boyds, MD, United States of America

Joseph L Abita