Polypectomy snare devices

US11779367B2 · kind B2 · utility

Assignee

• Boston Scientific Scimed, Inc. · US

Inventors

• Paul Smith · Smithfield, US
• Samuel Raybin · Marlborough, US
• Kevin James McElwee · Franklin, US
• Brian Gaffney · Rutland, US
• Naroun Soun · Lawrence, US
• Ismail Guler · Maple Grove, US
• Brian Hanson · Little Canada, US
• Elias Khoury · Champlin, US
• Steven R. Larsen · Lino Lakes, US
• Daniel H. VanCamp · Elk River, US
• Wade Strelow · Maple Grove, US
• Ryan V. Wales · Northborough, US
• Robert B. DeVries · Marlborough, US
• Peter Shank · Boylston, US

Key dates

• Filing date: Feb 27, 2020
• Grant date: Oct 10, 2023
• Expiry date: Apr 24, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2018/141
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Polypectomy devices and methods for making and using polypectomy devices are disclosed. An example polypectomy device may include an elongate sheath having a proximal end region and a distal end region. A shaft may be slidably disposed within the sheath. A handle may be coupled to the proximal end region of the sheath. The handle may be designed to axially shift the shaft relative to the sheath. A snare may be coupled to the shaft. The snare may include a first region, a traction region, and a distal tip region. The first region may have a non-circular cross-sectional shape. The traction region may include a plurality of traction members. At a position between two adjacent traction members the snare may have a reduced cross-sectional area relative to the first region. The distal tip region may have a circular cross-sectional shape.