MRI biopsy apparatus incorporating an imageable penetrating portion

US9638770B2 · kind B2 · utility

Assignee

• Devicor Medical Products, Inc. · US

Inventors

• Timothy G. Dietz · Wayne, US
• Keshava Datta · Chino Hills, US
• John A. Hibner · Maineville, US
• Michael A. Murray · Bellevue, US
• Robert Hughes · Cincinnati, US
• Mark Tsonton · Loveland, US

Key dates

• Filing date: Dec 30, 2005
• Grant date: May 2, 2017
• Expiry date: Nov 11, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/3983
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An obturator as part of a biopsy system enhances use with Magnetic Resonance Imaging (MRI) by indicating location of a side aperture in an encompassing cannula. The cannula (e.g., detached probe, sleeve sized to receive a core biopsy probe) includes a side aperture for taking a tissue sample. When the obturator is inserted in lieu of the biopsy device into the cannula, a notch formed in a shaft of the obturator corresponds to the side aperture. A dugout trough into the notch may further accept aqueous material to further accentuate the side aperture. In addition, a series of dimensionally varied apertures (e.g., wells, slats) that communicate through a lateral surface of the shaft and that are proximal to the side aperture receive an aqueous material to accentuate visibility in an MRI image, even in a skewed MRI slice through the cannula/obturator.