Core biopsy device

US8088081B2 · kind B2 · utility

Assignee

• Inrad, Inc. · US

Inventors

• Steven E. Field · Grand Rapids, US
• Brian R. Mulder · Rockford, US
• Michael Eric Johnson · Diemelstraße, US
• Todd Ireland · Coopersville, US
• Steve Haeske · Allendale, US
• Mark Vander Veen · Hudsonville, US

Key dates

• Filing date: May 11, 2005
• Grant date: Jan 3, 2012
• Expiry date: Mar 24, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/32004
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A core biopsy device comprises an outer cutting cannula in telescoping register with an inner spoon cannula. The outer cutting cannula is provided at a distal end with an arcuate excising blade that is biased radially inwardly to extend beyond the longitudinal axis of the cannula. The inner spoon cannula terminates at a distal end in an arcuate wall to form a biopsy sample spoon for supporting a biopsy sample thereon. The outer cutting cannula can be rotated relative to the inner spoon cannula so that the excising blade can excise the biopsy sample from the surrounding tissue. After removal of the core biopsy device from the tissue, the outer cutting cannula can be retracted away from the inner spoon cannula to reveal the biopsy sample and enable the sample to be removed from the biopsy device in a relatively undisturbed condition.