Slipper clutch for surgical tool bailout

US12102402B2 · kind B2 · utility

Assignee

• Cilag GmbH International · CH

Inventors

• Raffaele J. DeFinis · Loveland, US
• Benjamin Lawrence Bertram · Crestview, US
• Christopher A. Denzinger · Cincinnati, US
• Heather E. Knox · Cincinnati, US
• Mark D. Overmyer · Cincinnati, US
• Neil Markwardt · Redwood City, US

Key dates

• Filing date: Feb 11, 2021
• Grant date: Oct 1, 2024
• Expiry date: Dec 1, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T70/70
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A robotic surgical tool includes a handle having a drive input and a spline, a bailout ring arranged at the handle, and a slipper clutch mechanism received within the bailout ring. The slipper clutch mechanism including a slip carrier rotationally fixed to the bailout ring and defining a vertical slot that slidably receives a pin, a first ring arranged within the slip carrier and defining a first interface, a second ring arranged within the slip carrier atop the first ring and defining a second interface, and a pinion gear operatively coupled to the spline and arranged to intermesh with radial gear teeth defined on the second ring. Manual rotation of the bailout ring rotates the slip carrier and the pin and thereby rotates the first and second ring in succession to rotate the spline and manually bail out a function of the robotic surgical tool.