×

Imaging of interventional devices during medical procedures

  • US 5,577,502 A
  • Filed: 04/03/1995
  • Issued: 11/26/1996
  • Est. Priority Date: 04/03/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for providing an image of a subject with a correctly registered image of an invasive device employing the steps of:

  • (a) obtaining a plurality of reference images each corresponding to a different point of a periodic motion cycle of said subject;

    (b) storing each image and its corresponding periodic motion cycle point;

    (c) measuring said device location;

    (d) performing a measurement of the periodic motion point at essentially the same time as the device location measurement;

    (e) selecting a reference image corresponding to the measured periodic motion point;

    (f) superimposing an image of the device at the measured device location on the selected reference image; and

    (g) repeating steps "c"-"f" to produce a correctly registered real-time motion picture of the device and subject images.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×