Abstract: A system for delivering an educational program to a participant at a remote site and for monitoring participation therein. The system includes a server computer, a client computer and prompting means to monitor participation by the participant. The server computer has educational program software and interacts with the client computer in order to make an educational presentation to the participant. If the participant does not adequately respond, the prompting means terminate the educational program.

Abstract: A real-time computer-based viewing system comprising a database of software objects, wherein at least one of said software objects corresponds to a physical structure which is to be viewed by said system; a sensor for acquiring real-time data about said physical structure when said physical structure is located within that sensor's data acquisition field, wherein said sensor is capable of being moved about relative to said physical structure; an additional software object incorporating real-time data acquired by said sensor; registration means for positioning said additional software object in registration with said software objects stored in said database, the registration being a function of the position of the sensor vis-à-vis the physical structure; and processing means for generating an image from said software objects contained in said database, based upon a specified point of view.

Abstract: Method and apparatus for reconstructing a ligament. A graft ligament support block comprises a body, a graft hole, and a transverse fixation pin hole extending through the body. An installation tool is provided for inserting the support block into a bone tunnel and forming a transverse tunnel aligned with the pin hole. In use, a graft ligament is looped through the graft hole, and the support block is mounted to the tool. The tool is used to advance the support block into the bone tunnel, with two free ends of the graft ligament extending out the bone tunnel. A transverse tunnel is formed aligned with the pin hole. The support block is secured in place by pinning the support block within the tunnel by advancing a fixation pin along the transverse tunnel and into the pin hole in the support block.

Abstract: Apparatus is disclosed for precision alignment and assembly of opto-electronic components relative to one another, the apparatus comprising a selected optical component having a periphery forming at least one flat surface; a holding block having at least one attachment region corresponding to the at least one flat surface of the selected optical component; a positioning mechanism having a first portion and a second portion, the first portion configured to position the selected optical component relative to another opto-electronic component, and the second portion configured to position the holding block relative to the selected optical component and in contact with a platform in attachment with the another opto-electronic component; and an attachment component disposed between the selected optical component and the holding block, and the attachment component disposed between the holding block and the platform so as to fix the selected optical component in position relative to the another opto-electronic compo

Abstract: A method for fixing a portion of a piece of tissue in a bone tunnel comprising the steps of placing the portion of a piece of tissue in the bone tunnel, advancing spaced-apart first and second metal wires though the bone, transversely of the bone tunnel, so as to intersect the bone tunnel and extend into the portion of a piece of tissue, removing one of the wires and replacing the one removed wire with a first rod, and removing the other of the wires and replacing the other removed wire with a second rod, whereby to retain the portion of a piece of tissue in the bone tunnel with the rods.

Abstract: An optical isolator is disclosed for transmitting light in a first direction and blocking light in a second direction along an optical pathway. The optical isolator includes an input polarizer having a pass axis at first angle, an output polarizer having a pass axis at second angle, a Faraday rotator material between the polarizers having a Verdet constant and an axis of maximum length therethrough, generation means for generating a magnetic field around and inside the rotator material, and at least one reflector configured to define an optical length through the rotator material which is longer than the axis therethrough. The optical pathway length through the rotator material, the magnetic field strength, and the Verdet constant are selected so as to rotate light through the Faraday rotator material from the first angle to the second angle.

Abstract: An assembly and method for forming a frozen confection portion of a frozen confection type food product, the assembly comprising a mold assembly provided with a mold cavity of a selected configuration ad formed by a flexible inert casing, a pump for moving confection into the mold cavity and casing to fill the mold cavity and casing, sealing means for sealing the ends of the casing to provide a link of confection, a cutter device for separating the link from adjoining links, freezing devices for receiving and further freezing the link, and apparatus for opening the casing of the link and permitting the frozen confection to exit out of the casing in the selected configuration.

Abstract: This invention provides a flat dispersion frequency discriminator (FDFD) capable of having a substantially flat dispersion with either a positive or negative dispersion along the spectrum region of the discriminator. This way, a FDFD may not cause substantial distortion of the intensity patter of its output to minimize the occurrence distortion due to overshooting or undershooting of the intensity pattern depending on the relative spectral alignment of the laser output relative to the filter transmission.

Abstract: A method for reducing mitral regurgitation includes deploying deforming matter into a selected one of (i) a mitral valve annulus adjacent a posterior leaflet, and (ii) tissue adjacent the mitral valve annulus and proximate the posterior leaflet, to cause conformational change in the mitral valve annulus to increase mitral valve leaflet coaptation.

Abstract: A system of rotate-to-advance medical devices including catheters, dilators, occluders, stents, suprapubic catheters and camera introducers configured with external screw threads and depending substantially on rotation for means of advancement and emplacement in mammalian genitourinary and gastrointestinal passages and organs.

Abstract: A pressure sensor is disclosed for measuring fluid pressure comprising a pressure sensing structure comprising a mass target suspended on a spring mechanism, wherein the mass target and the spring mechanism together exhibit high Q mechanical resonance, wherein the mass target has an area which is presented in a plane perpendicular to the direction of the mechanical oscillation of the structure, and further wherein the mass target and the spring mechanism are in the form of a membrane, and transducer means for measuring the fluid pressure by characterizing the effects that the fluid molecules produce on the motion of the structure.

Abstract: The present invention is an educational and recreational apparatus having a geometrical structure game device comprising a framework of tubes and connector wires characterized by a plurality of nodes on which game pieces can be embedded. Each node comprises a cluster of portions of two or more pairs of connector wires, with the nodes of a game device being identical or differing from one another in the number of pairs of connector wires that form the nodes. The game device can take the form of a two-dimensional or three-dimensional, single-plane or multi-plane, latticed or non-latticed geometrical structure. The game is played with two sets of game pieces, one set for each of two players. The game pieces have slots therein for accommodating the connector wire portions that make up a node, with each set including game pieces that vary according to the variety of nodes in a game device.

Abstract: A crosspin for supporting a graft ligament in a first bone tunnel formed in a bone. The crosspin is positioned in a second bone tunnel extending transverse to, and intersecting, the first bone tunnel. The crosspin is adapted to be drawn through the second bone tunnel by a flexible member attached to a distal portion of the cross pin. The crosspin includes a connector for releasably connecting the distal portion of the crosspin to an intermediate portion, such that the distal portion is separable from said intermediate portion.

Abstract: A clip of fasteners for use in attaching a structural panel to a metal substrate comprises a plastic strip with openings characterized by inwardly-extending ribs for gripping and supporting fasteners that comprise a forward self-drilling portion, a rearward self-tapping thread portion and cutting blade means formed integral with the self-drilling portion. Each fastener has a head with a top surface adapted for driving engagement by a driver tool for rotatively driving the fastener, and a tapered surface having a plurality of circumferentially spaced cutting edges that function to cut away the ribs supporting the fastener as the fastener is rotatively driven through the structural panel to secure the panel to the substrate and create a countersink in the structural panel.

Abstract: A method and apparatus that produces highly ordered, nanosized particle arrays on various substrates. These regular arrays may be used as masks to deposit and grow other nanoscale materials.

Abstract: A garment for a personal cooling or warming system, the garment comprising a carrier formed in the shape of the garment, and a bladder comprising at least two channel segments, wherein the channel segments have a substantially flat configuration so as to improve thermal efficiency.