ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,391, issued on Nov. 11, was assigned to TERUMO K.K. (Tokyo).
"Medical device" was invented by Kousuke Nishio (Machida, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A medical device for cutting an object in a body lumen. The medical device includes a rotatable drive shaft; a tubular outer sheath configured to accommodate the drive shaft in a rotatable manner; and a rotation structure located on a distal side of the drive shaft, the rotation structure comprising: one or more rings; a cylindrical portion configured to be rotated by the drive shaft, the cylindrical portion having a side surface with a first groove portion; a cutting portion loca...