Eleftherios B Sideris: Buttoned device for the transvenous occlusion of intracardiac defects. Wendell Coffee, April 17, 1990: US04917089 (505 worldwide citation)

A transcatheter occluding intracardiac defect device comprises a folding poly-urethane foam with Teflon coated wire skeleton, introducible into a long vascular sheath and automatically unfolded upon delivery in the distal to the defect cardiac chamber. A two mm string loop is attached to the center ...

Armas C Markkula Jr, Wendell B Sander, Shabtai Evan, Stephen B Smith, William B Twitty: Network and intelligent cell for providing sensing, bidirectional communications and control. Echelon Systems, Blakely Sokoloff Taylor Zafman, April 17, 1990: US04918690 (352 worldwide citation)

A network for sensing, communcating and controlling including a plurality of cells. Each cell is identified by a permanent, unique identification number. Groups of cells are programmed to perform group functions and are assigned group identification numbers. Communication is performed via a medium u ...

John A Edmond: Blue light emitting diode formed in silicon carbide. Cree Research, Bell Seltzer Park & Gibson, April 17, 1990: US04918497 (346 worldwide citation)

The present invention comprises a light emitting diode formed in silicon carbide and that emits visible light having a wavelength of between about 475-480 nanometers, or between about 455-460 nanometers, or between about 424-428 nanometers. The diode comprises a substrate of alpha silicon carbide ha ...

Gary H Miller, Jeffrey L Kraus, Linda T Guthrie: Guidewire assembly with steerable adjustable tip. Advanced Cardiovascular Systems, Fulwider Patton Lee & Utecht, April 17, 1990: US04917102 (343 worldwide citation)

A guidewire assembly particularly suitable for valvuloplasty procedures have an outer tubular member a first shapable core member fixed within the outer member and a second stiffer core member which is axially movable within the out tubular member. The first core member preferably has a double curva ...

Otto Frey, Rudolf Koch: Intervertebral prosthesis. Sulzer Brothers, Kenyon & Kenyon, April 17, 1990: US04917704 (341 worldwide citation)

The intervertebral prosthesis provides a replacement for a damaged disk. The prosthesis is formed as a solid body of kidney-shape and is provided with a metal mesh covering for the ingrowth of tissue. Raised parts are formed on the opposite surfaces of the kidney-shaped body impart lateral stability ...

Hans Guenter Haindl: Valve for permanent venous cannulae or for catheter insertion means. B Braun Melsungen, Spensley Horn Jubas & Lubitz, April 17, 1990: US04917668 (335 worldwide citation)

A housing having a channel is provided with a slotted, elastomeric valve body dividing the channel. The slotted valve body is biased in the closed position by a metal spring. If the valve body's material loses resiliency, the spring guarantees that the valve takes its closed position, even if the va ...

Jon H Bechtel, Harlan J Byker: Automatic rearview mirror system for automotive vehicles. Gentex Corporation, Malcolm R McKinnon, April 17, 1990: US04917477 (327 worldwide citation)

An improved automatic rearview mirror system which is particularly adapted for use with automotive vehicles and which may be utilized as a fully integrated inside/outside rearview mirror system or as an inside or an outside rearview mirror system. The system includes a variable reflectance member th ...

Andrew P Proudian deceased, Michael J Eberle, Adam D Savakus, Horst F Kiepen, Douglas N Stephens, David H Rammler: Apparatus and method for imaging small cavities. Endosonics Corporation, Leydig Voit & Mayer, April 17, 1990: US04917097 (319 worldwide citation)

An in vivo imaging device is provided for producing real-time images of small, moving or stationary cavities and surrounding tissue structure. The imaging device includes a probe assembly of very small dimensions and preferably sufficiently small to fit within cavities having a diameter on the order ...

David J Walsh, William M Lougheed, Fred Gentili, Mahmood Fazl: Anastomosis devices, kits and method. Walsh Manufacturing, Bachman & LaPointe, April 17, 1990: US04917087 (237 worldwide citation)

Devices, kits and methods for non-suture end-to-end and end-to-side anastomosis of tubular tissue members employ tubular connection members having clip retaining elements comprising annular groove or flanges in the connection members; and spring clips which comprise a ring-shaped body with separable ...

Lawrence R Stark, Frederick Turner: Modular wafer transport and processing system. Varian Associates, Stanley Z Cole, Gerald M Fisher, Peter J Sgarbossa, April 17, 1990: US04917556 (236 worldwide citation)

A modular wafer processing machine is provided which is based on interconnected handling units having wafer handling arms. Each unit can pass a wafer to another unit in the same vacuum environment to a processing module.