Safety circuitry for high frequency cutting and coagulating devices

US4184492A · kind A · utility

Assignee

• Karl Storz Endoscopy-America, Inc. · US

Inventors

• Hans Heinrich Meinke · Gauting, DE
• Gerhard Flachenecker · Ottobrunn, DE
• Karl Fastenmeier · Munich, DE
• Friedrich Landstorfer · Munich, DE
• Heinz Lidenmeier · Planegg, DE

Key dates

• Filing date: May 30, 1978
• Grant date: Jan 22, 1980
• Expiry date: May 30, 1998

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S128/908
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In a surgical system for high frequency electrical cutting and cauterizing circuitry to prevent stray currents from harming the surgeon or the patient. This circuitry provides a preferred path for undesirable currents, and to indicate to a surgeon when the undesirable currents are too intense.