Laparoscopic forceps instrument

US11426187B2 · kind B2 · utility

Assignee

• Erbe Elektromedizin GmbH · DE

Inventors

• Achim Brodbeck · Metzingen, DE
• Matthias Voigtlaender · Gomaringen, DE
• Bernhard Nold · Lörrach, DE
• Tim CLOSS · Farchach, DE

Key dates

• Filing date: Jun 7, 2019
• Grant date: Aug 30, 2022
• Expiry date: Jan 18, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/036
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The forceps instrument includes a central pull-push member formed by transmission and actuating elements. The central push-pull member opens and closes the branches, and also acts as a tissue abutment that is variable based on the degree of closure of the branches. The variable tissue abutment may be configured as a slider element and is adjustable proportionally to the opening angle of the branches. When grasped, the vessels are brought proximally. The tissue abutment acts as a spacer between the hinge region and the grasped material. While the branches are being closed, the vessel is held stationary and compressed. During compression, expansion of the vessel occurs axially in distal and proximal directions. Due to the receding of the variable tissue abutment during the closing operation, room is created for the grasped material to escape. Tissue accumulations can thus be restricted and overstressing of the tissue can be counteracted.