Surgical instrument for performing controlled myotomies

US8425509B2 · kind B2 · utility

Assignee

• Ethicon Endo-Surgery, Inc. · US

Inventors

• Antonio Longo · Palermo, IT
• Michele D'Arcangelo · Roma, IT
• Alessandro Pastorelli · Roma, IT
• Federico Bilotti · Madeira, US
• Brian J. Thompson · Aliso Viejo, US

Key dates

• Filing date: Jun 22, 2007
• Grant date: Apr 23, 2013
• Expiry date: Aug 9, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/062
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical instrument (1) for performing controlled myotomies, particularly for performing internal anal sphincterotomies, comprises a proximal handle portion (2), an elongate insertion shaft (3) connected with the handle portion (2) and extending distally therefrom, a distal incision tip (4) arranged at a distal end of the insertion shaft (3) and adapted to incise tissue distally to the insertion shaft (3), a lateral incision member (5) arranged at the insertion shaft (3) and adapted to incise tissue laterally to the insertion shaft (3), wherein the lateral incision member (4) is movable from a rest position, in which it is retracted towards or inside the insertion shaft (3) and an operational position in which it protrudes laterally from the insertion shaft (3).