BURR HOLE MOUNTED STEREOTACTIC BIOPSY DEVICE

摘要

A device for performing a biopsy on a brain is disclosed. The device includes a mount adapted for attachment to a burr hole on the skull of a patient. The mount has a body with a threaded surface and a cup-shaped surface forming a socket. The surface at the bottom of the socket defines a surgical aperture. A first arm extends away from the body, and has one fiducial marker. A second arm extends away from the body and has two spaced-apart fiducial markers. An instrument guide has a tubular body with a ball joint at one end with and an instrument insertion opening at an opposite end, configured to receive an instrument therethrough. The ball joint inserts into the socket, allowing the instrument guide to be positioned to a desired angle. A locking cup is attached to the body to secure the instrument in a fixed position.

主权项

1. A stereotactic biopsy device for performing a biopsy on a brain, comprising:
a mount adapted for attachment to a burr hole on a skull of a subject of a biopsy, said mount having a body with a threaded surface and a cup-shaped surface forming a socket, a surface at a bottom of the socket defining a surgical aperture therethrough; a first arm extending away from the mount having at least one fiducial marker attached thereto; a second arm extending away from the mount having two space-apart fiducial markers attached thereto; an instrument guide having a tubular body with a ball joint at one end with and an instrument insertion opening at an opposite end in fluid connection, the tubular body configured and arranged to receive an instrument therethrough, guiding the instrument through the surgical aperture, the ball joint configured and arranged to insert into the socket on the body, the instrument guide positionable within the socket via the ball joint at a desired angle of approach; and a locking cup having a threaded end adapted to secure to the threaded surface of the body; whereby tightening the locking cup secures the ball joint of the instrument in a fixed position for the biopsy.