Other

Nakashima Propeller Co., Ltd.

Nakashima Medical Co., Ltd.

Kaneyama Ryutaku

Kouichi Kuramoto

Mamoru Mitsuishi

Shinichi Warisawa

Ryutaku Kaneyama

Keitarou Yamamoto

Daisuke Maruyama

Takayuki Inoue

A surgical instrument including a pre-cut trial mounted on a pre-cut line which is cut shallower than a genuine-cut line. The pre-cut trial is modeled after the genuine implant which is mounted on resected surfaces formed by performing genuine-cutting and comprised of an end resected surface, posterior and anterior resected surfaces, and posterior and anterior chamfer-resected surfaces on the distal end of a femur, and the pre-cut trial is mounted on the pre-cut line, thus observing the extended and flexed positions of the femur and the state of flexion thereof so as to make judgment if the genuine implant is appropriate.

Artificial knee joint and surgical instrument used in artificial knee joint replacement surgery

A curved surface machining method that performs finishing of the surface of a workpiece into a curved surface. The method includes the steps of: setting a workpiece in a rotating or stationary state in a water tank filled with an abrasive-containing solution into which an abrasive with a grain size of less than 1 &#x3bc;m has been admixed; and spraying a high-speed fluid in the abrasive-containing solution while a position, direction, and angle thereof is controlled relative to the workpiece, thus grinding and finishing the surface of the workpiece to an intended surface roughness and profile accuracy.

Curved surface machining method and an apparatus thereof

Growing community of inventors

Okayama, Japan

Kouichi Kuramoto