Other

Aloka Co., Ltd.

The University of Tokyo

Mizuho Ika Kogyo Kabushiki Kaisha

Sunmedix Co., Ltd.

Hitachi Aloka Medical, Ltd.

Isao Ohnishi

Kozo Nakamura

Ryoichi Sakai

Akimitsu Harada

Toshiro Uehara

Mitsuo Sato

Masahiko Bessho

Satoru Oohashi

Tsuneo Aoki

Tatsuko Sato, Legal Representative

Ryojiro Asano

Jyuntaro Matsuyama

An external skeletal fixation device includes first and second pin clamp units fixedly holding rodlike members inserted, respectively, into a first part and a second part of a bone on the opposite sides, respectively, of a virtual hinge point corresponding to a center of rotational angulation, a center on opposite sides of a fracture site of the bone or a part of the osteotomy site for deformity correction are turned, or a center about which a joint turns. A connecting mechanism connecting the first and second pin clamp units has first and second arms pivotally connected to the first and second pin clamp units, respectively. The respective axes of rotary joints respectively connecting the first pin clamp unit and the first arm, the second pin clamp unit and the second arm, and the first arm and the second arms extend toward the virtual hinge point.

External skeletal fixation device

An ultrasonic diagnostic apparatus according to the present invention comprises a plurality of transducer units which are two-dimensionally arranged to transmit/receive an ultrasonic wave to/from hard tissue; a transceiver unit which receives an echo signal for each transducer unit from the plurality of transducer units; a surface point specifying unit which specifies a surface point corresponding to a surface of the hard tissue for each echo signal; and a form data generator unit which generates form data of hard tissue surface on the basis of a plurality of surface points obtained two-dimensionally from the echo signals of the plurality of transducer units.

Ultrasonic diagnostic apparatus

An echo tracking processor unit detects a bone surface section based on an echo signal and tracks a position of the bone surface section. An interpolation line generator unit generates an interpolation line connecting tracking points which represent the tracked bone surface section. A translational displacement corrector unit removes a translational displacement component between an interpolation line corresponding to a time phase of a no-load state stored in a memory and an interpolation line corresponding to a time phase in a loaded state output from the interpolation line generator unit. A strain calculator unit calculates an amount of strain of bone for each time phase and outputs to a characteristic curve generator unit. The characteristic curve generator unit generates a characteristic curve related to the strain of bone based on a load value output from a load measurement device and the amount of strain of bone output from the strain calculator unit.

Growing community of inventors

Bunkyo-ku, Japan

Isao Ohnishi