Edward Glassman, William A Hanson, Peter Kazanides, Brent D Mittelstadt, Bela L Musits, Howard A Paul, Russell H Taylor: Image-directed robotic system for precise robotic surgery including redundant consistency checking. International Business Machines Corporation, Regents of the University of California, Perman & Green, March 29, 1994: US05299288 (525 worldwide citation)

A robotic surgical system includes a multiple degree of freedom manipulator arm having a surgical tool. The arm is coupled to a controller for controllably positioning the surgical tool within a three dimensional coordinate system. The system further includes a safety monitoring processor for determ ...

Shigeru Komatsuzaki, Toshinobu Hirayama, Tetsuo Toyokawa: Wound dressing having a porous structure. Nippon Zeon, Armstrong Westerman Hattori McLeland & Naughton, March 29, 1994: US05298015 (513 worldwide citation)

A dressing for a wound having a porous structure of continuous pores throughout the dressing made of minute filaments arranged in three dimensions and filmy links (viewed at a magnification of about 35 to 350) connecting the filaments. The porous structure has pores defined by the filmy interconnect ...

Larry C Wortham: Vehicle locating and communicating method and apparatus using cellular telephone network. By Word Technologies, Baker & Botts L, March 29, 1994: US05299132 (394 worldwide citation)

A method and apparatus for locating and communicating with vehicles is provided, including at least one mobile cellular unit connected to at least one microprocessor and installed within a vehicle. The microprocessor interrogates the mobile cellular unit to obtain location information from an overhe ...

Jack Shaio: Telephone call handling system. Unifi Communications Corporation, Fish & Richardson, March 29, 1994: US05299260 (371 worldwide citation)

A system for automatically handling incoming telephone calls. The system receives an incoming call and telephony information about the incoming call, and, using a call discrimination subsystem and based on the telephony information, assigns control of the call to one of a plurality of possible appli ...

Annamarie B Prewett, Roger C Stikeleather, Simon Bogdansky, Robert K O Leary: Shaped, swollen demineralized bone and its use in bone repair. Osteotech, Dilworth & Barrese, March 29, 1994: US05298254 (311 worldwide citation)

A shaped piece of swollen demineralized bone which can also be plasticized is provided for use in surgical bone repair.

Graydon E Beatty, Jonathan Kagan, Jeffrey R Budd: Endocardial mapping system. Endocardial Therapeutics, Merchant Gould Smith Edell, March 29, 1994: US05297549 (303 worldwide citation)

An array of electrode sites are placed in a heart chamber. The shape of the chamber and the location of the electrodes is determined via impedance plethysmography. Electrical measurements taken from the electrode array and referenced to a surface contacting electrode is used to generate a three-dime ...

Harold J Vinegar, Eric P DeRouffignac, Carlos A Glandt, Thomas Mikus, Mark A Beckemeier: Oil recovery process. Shell Oil Company, Del S Christensen, March 29, 1994: US05297626 (288 worldwide citation)

A process to recover oil is provided wherein an oil containing subterranean formation is heated by conductive heat transfer from heat injectors operating at temperatures above 900.degree. C. The high temperature levels of this process result in high recoveries of initial oil in place, and recovery o ...

Frank Kramer: Surgical staple with modified "B" shaped configuration. Ethicon, Paul A Coletti, March 29, 1994: US05297714 (284 worldwide citation)

A surgical staple is used in joining the skin or fascia of a patient, and is especially desired to be used with mesh placed over a cut organ, such as the kidney. The staple is adapted to be formed about a central anvil and former. The configuration of the staple is such that at initial contact the p ...

Peter J Wilk: Method for use in intra-abdominal surgery. R Neil Sudol, Henry D Coleman, March 29, 1994: US05297536 (274 worldwide citation)

A method for use in intra-abdominal surgery comprises the steps of inserting a tubular member into a natural body cavity of a patient through a natural body opening, manipulating the tubular member from outside the patient so that a distal end of the tubular member engages a wall of the natural body ...

Jonas A Pologe: Arterial blood monitoring probe. Ohmeda, Roger M Rathbun, Larry R Cassett, James M Graziano, March 29, 1994: US05297548 (264 worldwide citation)

This arterial blood monitoring system takes advantage of the basic statistical property that arterial blood contains a plurality of dominant absorbers, whose measured light absorption spectra appear as a constant over a short interval of time. By measuring the transmitted light as it varies with art ...