US Patent Issued on April 15 for "Method of drilling holes in bones and harvesting bone fragments for bone grafting" (Montana, Massachusetts Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,453, issued on April 15.

"Method of drilling holes in bones and harvesting bone fragments for bone grafting" was invented by Jacob Pourati (Brookline, Mass.) and Daniel M Schaner (Billings, Mont.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of drilling holes in bone and harvesting bone fragments for bone grafting utilizes a specially designed drill bit having a point angle of 115deg to 120deg; a lip relief angle approximately 10deg to 14deg, two or three flutes defining a helix angle from 13deg to 17deg at a distal end, and a helix angle of 31deg to 35deg in the proximal direction. The drill bit is rotated at less than 75 rpms, preferably ...