MRI biopsy apparatus incorporating a sleeve and multi-function obturator

US7693567B2 · kind B2 · utility

Assignee

• Ethicon Endo-Surgery, Inc. · US

Inventors

• Mark Tsonton · Loveland, US
• Timothy G. Dietz · Wayne, US
• John A. Hibner · Maineville, US
• Jessica M. Pyzoha · Cincinnati, US
• Michael J. Andreyko · Cincinnati, US
• Keshava Datta · Chino Hills, US
• Michael A. Murray · Bellevue, US

Key dates

• Filing date: Apr 12, 2005
• Grant date: Apr 6, 2010
• Expiry date: Apr 30, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/3987
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A localization mechanism, or fixture, is used in conjunction with a breast coil for breast compression and for guiding a core biopsy instrument during prone biopsy procedures in both open and closed Magnetic Resonance Imaging (MRI) machines. The localization fixture includes a three-dimensional Cartesian positionable guide for supporting and orienting an MRI-compatible biopsy instrument, and in particular a sleeve, to a biopsy site of suspicious tissues or lesions. A depth stop enhances accurate insertion, and prevents over-insertion or inadvertent retraction of the sleeve. The sleeve receives a probe of the MRI-compatible biopsy instrument and may contain various features to enhance its imagability, to enhance vacuum and pressure assist therethrough, and marker deployment etc.