ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,484,887, issued on Dec. 2.
"Medical instrument for taking tissue samples in the body" was invented by Jacques Philibert Janssens (Hasselt, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "Medical instrument for taking a tissue sample in the body, the instrument includes an inner tube and an outer tube mounted axially slideable over the inner tube. The inner tube possesses a distal end with a cutting spiral and a proximal end to turn the spiral in the tissue to be sampled. The outer tube possesses a distal end with a cutting edge to cut loose the tissue in the spiral by sliding the outer tube over the spiral. Both tubes over at least an overlapping ...