Surgical system with user adaptable techniques employing multiple energy modalities based on tissue parameters

US11051873B2 · kind B2 · utility

Assignee

• Cilag GmbH International · CH

Inventors

• Eitan T. Wiener · Cincinnati, US
• Benjamin J. Danziger · Kenmore, US
• David C. Yates · Morrow, US
• Kevin L. Houser · Springboro, US
• Ryan M. Asher · Cincinnati, US
• Frederick E. Shelton, IV · Hillsboro, US
• Jeffrey D. Messerly · Cincinnati, US
• Geoffrey S. Strobl · Williamsburg, US
• Kristen G. Denzinger · Cincinnati, US

Key dates

• Filing date: Jun 9, 2016
• Grant date: Jul 6, 2021
• Expiry date: Apr 9, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2018/1452
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Various forms are directed to systems and methods for dissection and coagulation of tissue. A method for detecting a short circuit in a surgical system configured to apply radio frequency energy and ultrasonic energy to a target surgical site that includes delivering radio frequency (RF) energy to an electrode of a surgical instrument, transitioning from delivering the RF energy to delivering ultrasonic energy to an ultrasonic blade of the surgical instrument, delivering an exploratory ultrasonic pulse to the ultrasonic blade, measuring an ultrasonic property of tissue engaged by the surgical instrument, wherein the ultrasonic property is associated with the exploratory ultrasonic pulse, determining whether the measured ultrasonic property is consistent with a behavior of low impedance tissue, and delivering ultrasonic energy to the ultrasonic blade to cut the tissue upon determining that the measured ultrasonic property is consistent with ultrasonic energy being applied to low impedance tissue.