ALEXANDRIA, Va., June 25 -- United States Patent no. 12,336,910, issued on June 24, was assigned to David Phillip Kirwan (Wirlinga, Australia).

"Hip prosthesis" was invented by David Phillip Kirwan (Wirlinga, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A short-stem femoral implant suitable for use in hip arthroplasty configured to self-stabilise against sliding across the endo-cortex when implanted in a subject's femur. The femoral implant includes a distal end configured to engage in abutment with the lateral endo-cortex of the subject's femur at two distal locations such that when implanted, the femoral implant has a reduced tendency for sliding across the endo-cortex."

The patent was filed o...