Gary K Michelson: X-ray marker. Lewis Anten, January 15, 1991: US04985019 (530 worldwide citation)

An adhesively applied marker for use in determining the location of where a spinal marker needle is to be placed is disclosed. The markers have a radiopaque grid pattern and other indicia on the surface of the marker so that when adhesively applied to the patient, they will clearly show the location ...

James D Stice: Flexible guide having two-way shape memory alloy. Flexmedics Corporation, James R Haller, Gregory P Kaihoi, Mary P Bauman, January 15, 1991: US04984581 (494 worldwide citation)

A medical guide wire for insertion into body channels for accessing specific inner body areas without major surgery. The guide wire comprises an elongated, flexible guide having a core of a shape memory alloy, the guide utilizing the two-way memory properties of the shape memory alloy to impart tip- ...

Andreas Melzer, Markus Naruhn, Karl Kipfmuller, H D Reidenbach, Gerd Buess: Bipolar coagulation instrument. Richard Wolf, Panitch Schwarze Jacobs & Nadel, January 15, 1991: US04985030 (365 worldwide citation)

The bipolar coagulating instrument has an outer barrel whose distal end is provided with two halves of a first jaw member, said halves being angled relative to the longitudinal axis and being spaced apart from one another. An inner barrel is similarly provided with a second jaw member, which also ha ...

Frank Yuen: Surgical retractor device. Collard Roe & Galgano, January 15, 1991: US04984564 (332 worldwide citation)

The present invention relates to a surgical retractor which comprises an inflatable sleeve that may be deflated, when not in use, so as to assume a precoiled position; and which may be inflated by air pressure, when in use, so as to define an uncoiled generally circular aperture.

Harold J Vinegar, George L Stegemeier: Vacuum method for removing soil contamination utilizing surface electrical heating. Shell Oil Company, January 15, 1991: US04984594 (306 worldwide citation)

An in-situ method is disclosed for removing contaminants from surface and near-surface soil by imposing a vacuum on the soil beneath a impermeable flexible sheet and then heating the soil with an electric surface heater that is positioned on the soil surface under the sheet. The heater is permeable ...

Wilmo C Orejola: Ventricular venting loop. Linval B Castle, January 15, 1991: US04985014 (254 worldwide citation)

A catheter and fluid pumping apparatus and the method for bypassing portions of the heart to temporarily reduce the work load on the heart muscle. A double tube catheter is introduced into the femoral vein or artery and is advanced into the ventricle where blood is drawn and mechanically pumped back ...

Donald J Drake, William G Hawkins: Buttable subunits for pagewidth "Roofshooter" printheads. Xerox Corporation, Oliff & Berridge, January 15, 1991: US04985710 (241 worldwide citation)

A "roofshooter" pagewidth printhead for use in a thermal ink jet printing device is fabricated by forming a plurality of subunits, each being produced by bonding a heater substrate having an architecture including an array of heater elements and an etched ink feed slot to a secondary substrate havin ...

William P Mortimer Jr: Polytetrafluoroethylene film. W L Gore & Associates, Gary A Samuels, January 15, 1991: US04985296 (205 worldwide citation)

A filled PTFE film is prepared by compressing an expanded, porous PTFE film that contains filler material. The films have high strength with substantially few pinholes.

David M Pfeiffer, David T Stoner, John P Norsworthy, Dwight D Dipert, Jay A Thompson, James A Fontaine, Michael K Corry: High speed image processing system using separate data processor and address generator. Visual Information Technologies, Baker & Botts, January 15, 1991: US04985848 (200 worldwide citation)

An image processor having an image algorithm processor (66) operating under control of a writable control store (94), and a number of parallel image processors (72) operating under control of instruction words from a writable control store (100). An image memory controller (68) receives memory addre ...

Richard J Penneck, James M O Brien, Stephen J Duckworth, Nicholas J G Smith: Wire and cable. Raychem, Edith A Rice, Herbert G Burkard, January 15, 1991: US04985313 (198 worldwide citation)

An article of manufacture, for example a conductor for an electrical wire or cable, is provided with a refractory coating preferably formed from a refractory metal or semi-metal oxide or nitride and preferably deposited on the surface of the article by a vacuum deposition process such as a sputter i ...