1
David T Green, Ernie Aranyi: Articulated surgical fastener applying apparatus. United States Surgical Corporation, Kenyon & Kenyon, March 1, 1988: US04728020 (805 worldwide citation)

Surgical fastener applying apparatus having an articulated shaft assembly intermediate a proximal actuator assembly and a distal fastener applying assembly. The rotational axis of the articulation is transverse to the proximal-distal axis of the shaft assembly. The apparatus is fully operational at ...


2
Tsuzawa Masami, Tominaga Muneharu, Uchiyama Yoshinori, Waki Osamu, Kato Hiroshi, Morikawa Tadahiro: Signal light unit having heat dissipating function. John G Semmes, March 1, 1988: US04729076 (406 worldwide citation)

A heat sink, made of a highly heat-conductive material is placed on the back of a circuit board upon the front of which many LEDs are arrayed as the signal light source. The heat sink, generally formed as an aggregate of a number of fins, need not necessarily be fitted in one piece with the back fac ...


3
Helmut Masch: Intravascular catheter. Phillips Moore Lempio & Finley, March 1, 1988: US04728319 (337 worldwide citation)

An intravascular catheter includes a flexible guide wire mounted for relative rotational and reciprocal movements within a reciprocal and flexible first tube. A rotary and flexible second tube is mounted on the first tube to define an annular passage therebetween and has a rotary inner cutting head ...


4
William J Bowers, Phillip D Hardwick: Electrosurgical generator with high-frequency pulse width modulated feedback power control. C R Bard, John R Ley, March 1, 1988: US04727874 (316 worldwide citation)

A pulse width modulation technique regulates the output power of each cycle of a radio frequency surgical signal of an electrosurgical generator. The delivered power of the surgical signal is determined by multiplying the sensed current and the sensed voltage of the surgical signal. An error signal ...


5
Michael J Kallok: Method and apparatus for low energy endocardial defibrillation. Medtronic, Joseph F Breimayer, Robert C Beck, John L Rooney, March 1, 1988: US04727877 (306 worldwide citation)

Ventricular fibrillation and other tachyarrhythmias are controlled by delivery of two sequential impulses to two pairs of electrodes placed partially within or adjacent to the heart. One electrode pair is provided by an endocardial lead which includes a distal electrode adapted to reside in the apex ...


6
Kazi Mobin Uddin: Embolus trap. Buell Ziesenheim Beck & Alstadt, March 1, 1988: US04727873 (297 worldwide citation)

The device comprises a plurality of elongated filamentary loops extending outwardly from a central column in one or more tiers, the filaments having hooks backed by offset barriers at their free ends. The column is preferably hollow. The device is inserted into a passageway such as a vein with the l ...


7
Douglas R Mongeon, Frederick J Palensky: Orthopedic drive assembly. Minnesota Mining and Manufacturing Company, Donald M Sell, James A Smith, William L Huebsch, March 1, 1988: US04728876 (294 worldwide citation)

A cordless rechargeable replaceable battery assembly powered drive assembly for driving orthopedic surgical instruments in which the battery has silver and zinc oxide electrodes in sodium hydroxide electrolyte to provide low voltage high current power. The switch is encased in the battery assembly, ...


8
Harold J Vinegar, William P Rothwell: NMR imaging of materials. Shell Oil Company, March 1, 1988: US04728892 (284 worldwide citation)

NMR imaging methods are provided for determining the spatial petrophysical properties of materials. These methods employ the generation of separate M.sub.o, T.sub.1 and T.sub.2 images from which various petrophysical characteristics may be obtained, such as free fluid index, porosity, pore sizes and ...


9
Howard C Hughes, Jacob T Kissinger: Cuffed tubular organic prostheses. Research Corporation, Scully Scott Murphy & Presser, March 1, 1988: US04728328 (280 worldwide citation)

A cuffed tubular vascular prosthesis and process for manufacturing the prosthesis are disclosed. A flexible tubular body is formed by coating a glass rod with a polymer solution and air-curing the coating to form a smooth outer surface. The tubular body is removed from the glass rod and turned insid ...


10
John E Maloney, Charles N Katz: Direction finding localization system. Ventana Sciences, Bacon & Thomas, March 1, 1988: US04728959 (224 worldwide citation)

The present invention combines the relative insensitivity of the phase angle differences of a radio signal to the signal distortions inherent in an urban environment with digital signal processing techniques to produce an accurate and economical way to locate a mobile transmitter station such as a m ...