Olympus Corporation

Toyo Ink Manufacturing Company

Nec Corporation

Michio Takayama

Takamitsu Sakamoto

Ken Fujisaki

Toru Kurihashi

Masayoshi Matsumoto

Masami Kuwahara

Takeshi Hirose

Manabu Ishikawa

Hideto Yoshimine

Chie Onuma

Sohei Ueda

Ken Yokoyama

Ryo Miyasaka

A surgical procedure of preparing bone holes to dispose an implanted tendon to a femur when performing reconstruction of a ligament in a knee joint, includes: forming a first bone hole in the femur; and applying ultrasonic vibration from a treatment portion of an ultrasonic treatment instrument to the femur, thereby cutting and expanding the first bone hole from the inside of the knee joint to the first bone hole of the femur along a predetermined depth, and forming a second bone hole having a polygonal shape, an approximately polygonal shape, an elliptical shape or an approximately elliptical shape to receive the implanted tendon.

Surgical procedure of knee joint

An ultrasound device includes: an ultrasound generator; an ultrasound probe; and a distal end treatment portion capable of forming a bone hole when pressed against a bone. The distal end treatment portion includes a base portion, and a distal end portion. The distal end portion includes projections and a valley portion between adjacent projections. Each projection is formed of at least one excision surface that is inclined from a base of the projection to a distal top of the projection. The excision surface is capable of finely crushing the bone. The valley portion includes a valley peak at a distal-most meeting point of adjacent projections such that a surface of the valley extending distally from a point at which the valley meets an outer surface of the base portion to the valley peak is inclined.

Ultrasound device

A surgical procedure of preparing bone holes to fix an implanted tendon to a femur when performing reconstruction of a ligament in a knee joint, includes: bringing a treatment portion of an ultrasonic treatment instrument into contact with the femur in the knee joint, and applying ultrasonic vibration from the treatment portion to the femur, thereby cutting and forming a first bone hole from the inside of the knee joint to the femur in a predetermined depth.

A process of accelerating electrons with a voltage applied thereto in a vacuum, guiding the accelerated electrons into a normal-pressure atmosphere, and irradiating the electron beam (EB) onto an object. The electron beam irradiation process uses a vacuum tube-type electron beam irradiation apparatus, and with the acceleration voltage for generating an electron beam set at a value smaller than 100 kV, the electron beam is irradiated onto the object.

Electron beam irradiation process and an object irradiated with an electron beam

Electron beam irradiating method and object to be irradiated with electron beam

A system for transferring digital signals between at least two printed circuit boards (packages) provided within a digital signal processing apparatus and each mounting a plurality of electronic parts such as microprocessors between a CPU package and a peripheral control package. The CPU package has a microprocessor (CPU), a transmitting sequential address generator 1, a receiving sequential address generator circuit 1, a transmitting dual port RAM 1 and a receiving dual port RAM 1. The peripheral control package has a digital processing circuit, a transmitting sequential address generator 2, a receiving sequential address generator 2, a transmitting dual port RAM 2 and a receiving dual port RAM. When a control information is to be sent from the CPU to the digital processing circuit, the CPU is required to only write the control information in the transmitting dual port RAM. The control information is read out from the transmitting dual port RAM according to sequential addresses produced by the transmitting sequential address generator independently from the CPU and outputted to the receiving dual port RAM of the peripheral control package. The control information thus outputted is written in the receiving dual port RAM 2 according to addresses produced by the receiving sequential address generator 2. The digital processing circuit reads the control information from the receiving dual port RAM 2 and processes it in a manner predetermined. This is the same for a case where information is transferred from the digital processing circuit to the CPU.

System of transferring data in a multi-CPU arrangement using address

Growing community of inventors

Tokyo, Japan

Michio Takayama