Abstract: Disclosed are novel compositions for embolizing blood vessels which are particularly suited for treating vascular lesions via catheter delivery.

Abstract: Disclosed are novel compositions for embolizing blood vessels which are particularly suited for treating vascular lesions via catheter delivery.

Abstract: Disclosed are novel compositions for embolizing blood vessels which are particularly suited for treating vascular lesions via catheter delivery.

Abstract: The disk carrier with spindle comprises an outer shell including an upper portion and a lower portion that connect together to form a chamber to enclose disks and constrain a spindle in place in the chamber. The spindle further comprises elongated portions or partial cylinder sections joined by a hinge so that the spindle can be moved into a contracted position to freely pass through a central aperture of a disk or into an expanded position to contact the inner perimeter of the disk and secure the disk.

Abstract: The disk carrier is used to house and secure a plurality of disks and comprises a disk cassette having an open top, an open bottom, and end wall ingresses; a top cover; and a bottom cover. The top cover has flaps to cover the end wall ingresses. To reduce particulation from opening and closing the disk carrier, one embodiment of the disk carrier implements an articulation in the flaps. Another embodiment implements a living hinge on the bottom cover. The disk carrier also has a path to ground for dissipating static and other electrical charge away from the disks.

Abstract: An interface needle is used for connecting a syringe to a catheter to create a blunt interface between two or more liquids being delivered through the catheter. The interface needle is particularly useful for creating a blunt interface between a biocompatible solvent and a liquid embolic composition which is delivered to the body for treatment of various conditions including aneurysms. A system for liquid delivery with a blunt liquid interface includes a catheter or other cannula, an interface needle, and a syringe. The interface needle includes a tube extending from a distal end which delivers liquid to a lumen of the catheter bypassing a reservoir in the catheter hub to create the blunt liquid interface. One embodiment of the interface needle controls an injection pressure of high viscosity liquids.

Abstract: This invention is directed to methods for treating aneurysms wherein the aneurysmal sac is filled with a non-particulate agent or plurality of such agents and/or with a fluid composition which solidifies in situ. Filling of the aneurysmal sac employs sufficient amount of the non-particulate agent or plurality of such agents and/or the fluid composition to inhibit blood flow into the aneurysm sac. In addition, the methods of this invention also provide for non-endogenous isolation of the parent artery proximal and distal to the aneurysmal sac from systemic blood flow of the treated mammal. The combination of these features provides for treatment of the aneurysmal sac while, at the same time, inhibiting aneurysm formation and/or regrowth in the diseased portions of the arterial wall proximal and distal to the treated aneurysm.

Abstract: Disclosed are methods for vascular reconstruction of diseased, non-aneurysmal arteries.

Abstract: Disclosed are novel compositions for embolizing blood vessels which are particularly suited for treating vascular lesions via catheter deliver.

Abstract: A load absorbing apparatus for use in protective equipment in which a resilient bag containing fluid under pressure is disposed in a position subject to loads and a reservoir of elastomeric material which is expandable from an initial position with a minimum volume to a loaded position with an increased volume which is positioned in spaced relation to said position subject to loads. The resilient bag and reservoir are connected in fluid communication so that loads imposed on the bag force fluid from the bag to the reservoir where the energy is dissipated. After the load is removed from the resilient bag, the reservoir returns to its original shape to return the fluid to the resilient bag. The protective equipment incorporating the load absorbing apparatus can be in the form of a helmet with a relatively rigid shell or a body protected pad having a flexible outer cover.

Abstract: An improved disk cassette, particularly advantageous for the containment of data storage disks, having a plurality of adjacently disposed rib members, wherein each rib member has an improved cross-sectional profile such that engagement grooves defined therebetween have a dual angle configuration which maintain each disk in radial contact at four different areas along the chamfered periphery thereof to minimize particulation from forming within the disk cassette. More particularly, the improved disk cassette restricts the mobility of the disks and minimizes the amount of contact area between the disks and the disk cassette so as to collectively reduce the propensity for particulation. The improved disk cassette of the present invention is also streamlined in terms of the amount of material required for manufacture, thereby decreasing the cost of materials, the cycle time for curing, and overall cost of manufacture.

Abstract: The present invention discloses a composition for a valve of an advanced heat engine. The valve comprises grains of aluminum-doped silicon carbide. The grains are of two main types: (1) a matrix of equi-axed grains of alpha and beta SiC for optimum distribution of mechanical properties; and (2) elongated grains of alpha SiC which are distributed within the matrix for reinforcement. The invention also comprises a process for making such valves. The process begins with a powder of aluminum-doped beta-silicon carbide. A binder and a solvent are then added to the powder, and the mixture is agitated while being heated. The mixture is then transferred to an injection mold which is used to form a molded component. The molded component is then sintered and machined into desired dimensions. An annealing step is then performed so that the component exhibits the characteristics of improved strength and toughness.

Abstract: A boring bar assembly for boring large diameter turbine bores in the field, the assembly utilizing a small hydraulic motor which drives a boring bar through an in line double reduction gear drive with a reduction ratio in excess of 100:1 and an output shaft which compensates for as much as 6.degree. angular misalignment between the boring bar and the output shaft of the gear box.

Abstract: An improved energy conversion device of the type comprising: (A) an anodic reaction zone, (i) which contains a molten alkali metal anode-reactant in electrical contact with an external circuit, and (ii) which is disposed interiorly of a tubular cation-permeable barrier to mass liquid transfer; (B) a cathodic reaction zone (i) which is disposed exteriorly of said tubular cation-permeable barrier, and (ii) which contains an electrode which is in electrical contact with both said tubular cation-permeable barrier and said external circuit; (C) a reservoir for said molten alkali metal which is adapted to supply said anode-reactant to said anodic reaction zone; and (D) a tubular ceramic header (i) which connects said reservoir with said anodic reaction zone so as to allow molten alkali metal to flow from said reservoir to said anodic reaction zone, (ii) which is sealed to said tubular cation-permeable barrier, and (iii) which is impervious and nonconductive so as to preclude both ionic and electronic current leakag