Surgical access device including alternating cutout fluid flow pathway for anchor inflation and deflation

US11432846B2 · kind B2 · utility

Assignee

• Covidien LP · US

Inventors

• Christopher A. Tokarz · Torrington, US
• Kevin Desjardin · Cheshire, US
• Douglas M. Pattison · Town of East Hartford, US
• Jason Mickus · Avon, US
• Oksana Buyda · San Diego, US
• Astley C. Lobo · West Haven, US
• Amanda M. Adinolfi · Wallingford, US

Key dates

• Filing date: May 5, 2020
• Grant date: Sep 6, 2022
• Expiry date: Nov 21, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/3492
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical access assembly includes a cannula including an elongated shaft having a proximal end portion including an anchor inflation port and a distal end portion including an expandable anchor. The elongated shaft includes an inner tube and an outer tube disposed over the inner tube. The inner tube includes a channel extending longitudinally therethrough and first and second openings defined in an outer surface thereof that are in communication with the channel. The channel, the first openings, and the second openings form an inflation lumen with an inner surface of the outer tube. The inflation lumen is in communication with the anchor inflation port and the expandable anchor.