RF Ablation Needle Tracked With Magnetic Position Sensing
Description of Invention:
The invention is a method for using a newly developed position-sensing device to determine the three-dimensional position of a needle for precision placement in interventional procedures. The method can be applied to accurate placement of a radiofrequency ablation probe for percutaneous treatment of neoplasms in the liver, kidney, or other solid organs, nodules or lymph nodes. The method incorporates a magnetic field based position-sensing device that can track coils of only 0.9 mm diameter by 8 mm in length. These coils can be embedded in needles and other instruments to directly track the tip of these instruments. Based on a pre-operative CT scan, the position of these instruments relative to the anatomy can be displayed on a graphical user interface along with targeting assistance for the physician.
Potential Area of Application:
Cancer imaging, biopsy, and surgery
Inventors:
Bradford J. Wood (CC)
Filip Banovac
Kevin Cleary
Patent Status:
DHHS Reference No. E-348-01/0 filed 01 Mar 2002
For Additional Information Please Contact: Michael Shmilovich J.D.
NIH Office of Technology Transfer
6011 Executive Blvd, Suite 325
Rockville, MD 20852-3804
Phone: (301) 435-5019
Email: shmilovm@mail.nih.gov
Fax: (301) 402-0220
