Seal assemblies for surgical access assemblies

US11166748B2 · kind B2 · utility

Assignee

• Covidien LP · US

Inventors

• Roy J. Pilletere · North Haven, US
• Matthew A. Dinino · Newington, US
• Garrett P. Ebersole · New Haven, US
• Kevin Desjardin · Cheshire, US
• Justin Thomas · New Haven, US
• Jacob C. Baril · Norwalk, US
• Nicolette R. LaPierre · Bull Run Corner, US
• Eric Brown · Madison, US

Key dates

• Filing date: Dec 4, 2019
• Grant date: Nov 9, 2021
• Expiry date: Apr 26, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2217/002
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Access assemblies include an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, a seal assembly disposed adjacent to the guard assembly, and a centering mechanism for maintaining the seal assembly and guard assembly centered within a cavity of the instrument valve. The guard assembly includes a support ring and a plurality of guard sections disposed distally of the support ring. The seal assembly includes a proximal seal member, an intermediate seal assembly, and a distal seal member, the intermediate seal assembly including a plurality of seal sections in a stacked configuration.