The Measuregraph Company

Ninetronix, Inc.

Tadmor Shalon

Robert C Drews

Danny D Meyer

Eliezer Pasternak

Walter A Thater

Steve Somogye, Jr

Donald M Jacobsen

An ophthalmic aspirator and cystotome having a hand-held, motorized instrument which is operated by a battery-run control system. The instrument includes a disposable coaxial aspirator-irrigator tip and a wormdrive mechanism for bidirectional, variable speed operation and also includes a disposable scalpel tip with infusion/irrigation orifice for communication with an intraveneous solution bag. The scalpel tip is coupled through a clutch mechanism to the motor, which may be adjusted by the control system to make single or repeated cuts in either of two rotary directions. The aspirator's most frequently needed controls are mounted on the handpiece to provide an easily operable instrument of great precision for use in eye surgery. The instrument features an electronic control circuit housed in part within a desk top or suspendable unit and in part within the handpiece. The circuit may be switched between the aspirator mode and the cystotome mode and provides control signals to a motor carried within the handpiece. In the aspirator mode the circuit generates aspirate and backflush signals at the touch of a control switch mounted on the handpiece. Flow rates are continuously variable by means of a potentiometer control in the butt of the handpiece. In the cystotome mode the control switch commands either single cutting strokes or repeated cutting strokes in either of two rotary directions, the direction being selected by the potentiometer control.

Ophthalmic aspirator/irrigator and cystotome

Combined fabric measuring and cost computing device

Apparatus and method for measuring unit or remnant lengths of material, calculating the price and developing related sales information adapts to use in a system wherein the measuring and related data entry operations are performed at a plurality of terminals connected to a central computer. Each terminal employs a measuring roller and associated optical-electronic measuring and data processing circuitry. The measuring roller moves bi-directionally to increment or decrement the measure and is adapted for being repositioned to a precise home position at the commencement of each measuring operation. Electronic 'noise' encountered with prior art optical-electronic length measuring and price computation apparatus has been substantially eliminated and operation improved by use of visual and audio cues for the operator.

Computer adapted apparatus and method for pricing lengths of material

Growing community of inventors

St. Louis, MO, United States of America

Tadmor Shalon