Tokyo Institute of Technology

Tokyo Medical and Dental University

Reinheart Gmbh

Setsuo Takatani

Tadahiko Shinshi

Wataru Hijikata

Hideo Hoshi

Akira Shimokohbe

Junichi Asama

Chikara Hara

Thomas Schmitz-Rode

Yoshimasa Yokoyama

Ulrich Steinseifer

A magnetically-levitated centrifugal pump comprises a pump head section and a pump section, where the pump section comprises a stator, a torque transmission disc, a motor, a displacement sensor, and a pump housing.

Disposable magnetically-levitated centrifugal pump

A cardiac function variation evaluation apparatus includes: a continuous flow type auxiliary artificial heartconnected to a ventricle (A); a pressure sensorfor detecting ventricle (A) internal pressure; and means (a personal computer) for evaluating contractile variation of the ventricle, to which the auxiliary artificial heartis connected, based on internal area APMp of a closed-loop of a relationship between the ventricle internal pressure detected by the pressure sensorand a consumption power of the auxiliary artificial heart. Thus, the contractile variation of the ventricle, to which an auxiliary artificial heart is connected, can be continuously evaluated not by use of an ultrasonic echo apparatus or a conductance catheter but by use of a non-invasive method.

Cardiac function change evaluating device

A disposable centrifugal blood pump with magnetic coupling provides a centrifugal blood pump with magnetic coupling which is simple in structure of disposable parts with low cost. Therefore, a housing as the disposable part includes a rotor having pole faces extending on the outer-peripheral surface and projecting inward from the inner-peripheral surface and an impeller attached to the rotor, and a stator as a reusable part includes three or more electromagnets for electromagnetic coupling for forming a magnetic coupling between the stator and the rotor, a torque transmission disk formed by sandwiching a ring-shaped permanent magnet between two upper and lower ring members and having pole faces corresponding to the pole faces projecting from the inner-peripheral surface of the rotor formed to project for generating a magnetic coupling between stator and rotor, a motor for rotating the torque transmission disk, and a displacement gauge for measuring displacement of the rotor.

Disposable centrifugal blood pump with magnetic coupling

A disposable centrifugal blood pump with magnetic coupling provides a centrifugal blood pump with magnetic coupling which is simple in structure of disposalable parts with low cost. Therefore, a housing as the disposable part includes a rotor having pole faces extending on the outer-peripheral surface and projecting inward from the inner-peripheral surface and an impeller attached to the rotor, and a stator as a reusable part includes three or more electromagnets for electromagnetic coupling for forming a magnetic coupling between the stator and the rotor, a torque transmission disk formed by sandwiching a ring-shaped permanent magnet between two upper and lower ring members and having pole faces corresponding to the pole faces projecting from the inner-peripheral surface of the rotor formed to project for generating a magnetic coupling between stator and rotor, a motor for rotating the torque transmission disk, and a displacement gauge for measuring displacement of the rotor.

Growing community of inventors

Tokyo, Japan

Setsuo Takatani