Alan Broadwin, Alexander Kreizman, Chana Puiam, Vaclav O Podany, Leonard M Emery: Method and apparatus for ultrasonic surgical fragmentation and removal of tissue. Cooper LaserSonics, Vorys Sater Seymour and Pease, May 9, 1989: US04827911 (558 worldwide citation)

A method and apparatus for periodically interrupting ultrasonic power applied to a ultrasonically vibrating tip to control its amplitude between high and low or zero amplitudes with a selectible duty cycle and repetition rate provides enhanced fragmentation and improves surgical control. The duty cy ...

Alexander Kreizman, Alan Broadwin: Angulated ultrasonic surgical handpieces and method for their production. Cooper LaserSonics, Vorys Sater Seymour and Pease, January 6, 1987: US04634419 (226 worldwide citation)

An improved ultrasonic surgical handpiece includes an angled connecting body between the transducer and operative tip, with the connecting body being bent at a location between the node and antinode at its respective ends and with a second nodal plane support in the transducer section. The vibrating ...

Robert W Hornlein, Joseph N Logan, Alan Broadwin, Vaclav O Podany: Irrigation/aspiration manifold and fittings for ultrasonic surgical aspiration system. Cooper LaserSonics, Vorys Sater Seymour and Pease, May 31, 1988: US04747820 (220 worldwide citation)

An ultrasonic surgical aspirator having an improved irrigation/aspiration manifold and components to facilitate quick connections of the irrigation and aspiration lines to a handpiece. In combination with a handle assembly having an ultrasonic vibrator for vibrating an ultrasonic tip and a nosecone, ...

John W Berkman, Michael H Curtis, David A Dewey: Radial keratotomy knife and system using same. CooperVision, Vorys Sater Seymour and Pease, June 14, 1988: US04750489 (194 worldwide citation)

A radial keratotomy knife which includes an accurate linear position transducer for digitally displaying the extension of a surgical blade beyond a footplate on the knife. A system is also disclosed for zeroing the blade position relative to the footplate. The system includes a zeroing sleeve having ...

Maurice M Imonti, Charles E Beuchat: Surgical aspirator cannula. The Cooper Companies, Vorys Sater Seymour and Pease, May 15, 1990: US04925450 (148 worldwide citation)

A surgical aspirator cannula including an elongated body member having a longitudinal aspiration conduit, and a valve assembly supported by the body member and operable to close off the aspiration conduit. The valve assembly includes a thumb switch pad and a plunger having a bore laterally therethro ...

Wallace C Snipes, Stephen J Wagner: Erodible matrix for sustained release bioactive composition. Zetachron, Vorys Sater Seymour and Pease, February 21, 1989: US04806337 (148 worldwide citation)

A sustained release composition for releasing a biologically active compound into an aqueous liquid environment comprises said biologically active compound dispersed in a bioerodible matrix, the matrix comprising a mixture of (a.) 5% to 95% by weight of a solid water-dispersible polyether diol havin ...

Richard A Sorich: Operative elliptical probe for ultrasonic surgical instrument and method of its use. CooperVision, Vorys Sater Seymour and Pease, May 7, 1985: US04515583 (140 worldwide citation)

An improved ultrasonic surgical aspirator for use in breaking up and removing tissue from an operative site recessed within a tissue body employs an elongated probe having an oval or elliptical cross section to more closely conform to and fit an incision in the tissue and to expose a wider area of t ...

Hideaki Kurata, Naoki Kobayashi, Takashi Kobayashi, Katsutaka Kimura, Hitoshi Kume, Shunichi Saeki: Nonvolatile semiconductor memory device. Hitachi, Hitachi Device Engineering, Vorys Sater Seymour and Pease, June 5, 2001: US06243290 (135 worldwide citation)

The present invention provides a nonvolatile semiconductor memory device for multilevel data storage that simultaneously carries out programming of multilevel data and subsequent verification at a high programming throughput.

Tamer Akkas, Ted Carlson: Surgical cutting instrument. The Cooper Companies, Vorys Sater Seymour and Pease, March 20, 1990: US04909249 (125 worldwide citation)

A surgical cutting instrument such as for use in intraocular surgery having a handpiece with an elongate probe extending foward from it. The probe has an elongate stationary outer cutter with a port at its tip and an elongate inner cutter with a cutting surface coaxially disposed therein. The interi ...

Thomas S Orselli, John Dunne: Roulette game apparatus and method with additional betting opportunity. Vorys Sater Seymour and Pease, July 30, 1996: US05540442 (115 worldwide citation)

In a modified roulette game offering an additional betting opportunity with a large payoff for a winning bet, a player, having made a conventional roulette bet on a conventional roulette betting layout, may make a second or side bet on a related betting layout exhibiting only the numbers of the conv ...