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Garo Khanarian
Garo Khanarian, Donald Raskin, Alan Buckley, Gordon W Calundann, Anthony J East: Copolymeric nonlinear optical media. Hoechst Celanese, Depaoli & O Brien, September 18, 1990: US04957655 (15 worldwide citation)

In a preferred embodiment this invention provides a second order nonlinear optical film medium which consists of a thermoplastic copolymer which has a crystallographic molecular alignment, and a net dipolar molecular orientation normal to the film plane. The crystallographic molecular alignment is f ...


2
Richard B Caspari, Arthur F Trott, F Barry Bays: Suturing instrument. Concept, Epstein Edell & Retzer, September 18, 1990: US04957498 (417 worldwide citation)

A suturing instrument for use in arthroscopic surgery includes a hollow needle for penetrating tissue to be sutured within the body while the tissue is clamped between relatively movable jaws, and a suture feed mechanism for feeding suture material through the hollow needle such that the jaws can be ...


3
Viktor A Lipatov, Igor A Guskov, Nikolai N Kanshin: Surgical suturing instrument. Fleit Jacobson Cohn Price Holman & Stern, September 18, 1990: US04957499 (304 worldwide citation)

A surgical suturing instrument for establishing circular compression anastomoses in the organs of the digestive tract comprises a rod (2) accommodated in a hollow body (1) coaxially therewith and having a stationary fixed connecting ring (13), a hollow cylindrical knife (3) made fast of a hollow tub ...


4
Michel A Lahille, Alain J Dibie: Anti-embolic filter. Biomat R L, Laubscher Presta & Laubscher, September 18, 1990: US04957501 (272 worldwide citation)

The filter is particularly for implantation in the interior vena cava by sliding through a small sized catheter of type 7F, so as to arrest the migration of all thrombi of dangerous size. The filter comprises a flexible wire having been subjected to a primitive predeformation into first and second s ...


5
Patrick Kluger: Device for setting the spinal column. Collard Roe & Galgano, September 18, 1990: US04957495 (232 worldwide citation)

A device for adjusting a vertebral column with damaged vertebrae comprises an adjustable arm on a guiding axis and a stationary arm attached to the guiding axis, each arm having a hollow receiving body adjustable in two planes for a lengthening rod, which can be connected with a tire-fond. Each arm ...


6
Stig S Lundback: Heart assist jacket and method of using it. Astra Tech, White & Case, September 18, 1990: US04957477 (214 worldwide citation)

A heart assist device for insertion into the thoracic cavity of a patient comprises a double-walled jacket (10) adapted to enclose at least the ventricular portion of the heart (H), at least the inner wall (11) of the jacket being pliable to be able to engage the outer surface of the heart and move ...


7
William M Chardack: Implantable blood pump. Hodgson Russ Andrews Woods & Goodyear, September 18, 1990: US04957504 (212 worldwide citation)

An implantable blood pump (10) for providing either continuous or pulsatile blood flow to the heart. The pump includes a stator (16) having a cylindrical opening (14), an annular array (36 or 38) of electromagnets (40, 42) carried by the stator concentric with the cylindrical opening and lying in a ...


8
David Cerny, Gary J Mills, Peter J Westkaemper: Continuous sonication method for preparing protein encapsulated microbubbles. Molecular Biosystems, Tilton Fallon Lungmus & Chestnut, September 18, 1990: US04957656 (189 worldwide citation)

An ultrasonic imaging agent is produced by a continuous sonication processing of an aqueous solution of heat-denaturable biocompatible protein. The solution is carefully preheated to a temperature of incipient protein denaturation without forming insolubilized protein. A gaseous fluid, preferably ai ...


9
Anatole J Sipin: Gas delivery means. Hedman Gibson Costigan & Hoare, September 18, 1990: US04957107 (185 worldwide citation)

The present invention provides a system that provides a gas delivery system which is capable of cyclically delivering a selectable volume of gas at a predetermined rate for a predetermined interval. This system is useful as a miniature respirator or as a wearable driver for a pneumatic total artific ...


10
Lisa A Cantu, Marion W Osborne, Edward F McBride: Well treatment process. Conoco, Richard W Collins, September 18, 1990: US04957165 (184 worldwide citation)

Hydroxyacetic acid condensation product is used as a fluid loss material in a well completion or workover process in which a fluid comprising a hydrolyzable aqueous gel is used. The hydroxyacetic acid condensation product degrades at formation conditions to provide hydroxyacetic acid which breaks th ...



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