Patent ID: 7192404
Filing Date: 2007-03-20
Classification: A61B

Abstract:
1. A biopsy device which is compatible for use with a magnetic resonance imaging machine, said device comprising: a. a non-metallic elongated substantially tubular needle having a distal end, a proximal end, a longitudinal axis therebetween, a cutter lumen, a non-metallic liner extending along a portion of the cutter lumen, and a side port communicating with said cutter lumen and spaced from said distal end on said elongated needle for receiving a tissue sample; b. a sharpened closed distal tip for insertion within tissue, said sharpened distal tip attached relative to said distal end of said needle, said distal tip having a proximally opening hollow cavity which is at least partially filled with a capsule comprising a material which will leave an artifact under magnetic resonance imaging, wherein said capsule is spaced distally from said side port of said needle; and c. a hub member engaged with the distal tip, wherein the hub member is configured to cover the proximally opening hollow cavity of the distal tip to contain the capsule within the proximally opening hollow cavity of the distal tip, wherein the proximally opening hollow cavity of the distal tip is substantially closed off relative to the cutter lumen by the hub member.