ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,140, issued on Jan. 13, was assigned to KONINKLIJKE PHILIPS N.V. (Eindhoven, Netherlands).
"Atherectomy devices including positive and negative rake angle cutting blades" was invented by Douglas Rowe (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An atherectomy device includes a catheter that is coupled to a handle. The catheter includes an outer sheath and a drive shaft carried within and rotatable relative to the outer sheath. A cutter assembly is coupled to and extends distally relative to the outer sheath. The cutter assembly includes a housing coupled to and extending distally from the outer sheath. A proximal cutting element ...