Lasersurge, Inc.

Daniel E McGarry

Jude S Sauer

Michael G Oravecz

Roger J Greenwald

John F Hammond

James W Kaufer

Roger G Greenwald

A method and apparatus for projecting an image of a surgical field along an optical path to intersect a display screen which is nonperpendicular to the optical path and adjacent the surgical field. A video projector system and accompanying optics impart at least one of a tilted focal plane or depth of focus to the projected image. The optical path of the projected image is located adjacent the surgical field. A sterilizable display screen is located in the optical path adjacent the surgical field so that a normal to the screen is noncoincident with the optical path and the projected image on the screen is of constant focus across the screen.

Video display system for locating a projected image adjacent a surgical

A surgical apparatus for manipulating body tissue includes a handle member consisting of a frame, a self contained fluid dispenser having a chamber for storing a supply of fluid and a plunger reciprocally moveable within the chamber for dispensing the fluid, and a trigger operatively connected to the plunger and moveable to cause corresponding movement of the plunger. The apparatus also includes a generally elongated member connected to the handle member and an inflatable member supported at the distal end portion of the elongated member in fluid communication with the fluid dispenser. A method for performing a tracheostomy with the apparatus is also disclosed.

Apparatus for expanding body tissue

A method and apparatus for projecting an image of a surgical field along an optical path to intersect a display screen which is nonperpendicular to the optical path and adjacent the surgical field. A video projector projects the image along the optical path through a tilted projection optic or compensator, and mirrors locate the optical path adjacent the surgical field. A sterilizable display screen is located in the optical path adjacent the surgical field so that a normal to the screen is noncoincident with the optical path and the projected image on the screen is of constant focus across the screen.

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North Chili, NY, United States of America

Daniel E McGarry