Terumo Kabushiki Kaisha

Ntn Corporation

Teikoku Seiyaku Co., Ltd.

Terumo Kabushiki Kaisha Shibuya-ku

Mitsutoshi Yaegashi

Takayoshi Ozaki

Takehisa Mori

Takehiko Asada

Kenichi Suzuki

Kazuhiro Hirota

Akihiro Hasui

Masamichi Yanai

Hiroyuki Kubo

Yoshiyuki Habu

A liquid medicine filling device includes a container mounting unit, a liquid delivery flow conduit, a ventilation flow conduit, a syringe, a connection flow conduit, a first flow path switching unit, and a second flow path switching unit. The first flow path switching unit may switch between a flow path for filling through which the syringe communicates with a liquid medicine container via the ventilation flow conduit and a flow path for air removal through which the syringe communicates with the connection flow conduit via the ventilation flow conduit. The second flow path switching unit may switch between a flow path for filling through which the liquid medicine container communicates with the liquid medicine storage unit via the liquid delivery flow conduit and a flow path for air removal through which the liquid medicine storage unit communicates with the connection flow conduit via the liquid delivery flow conduit.

Liquid medicine filling device and liquid medicine filling method

An iontophoresis patch is equipped with a donor gel and a reference gel which are disposed to contact an external conductor, for example, the skin of a patient and thereby output current from a current-carrying device to the external conductor. The iontophoresis patch includes: a donor portion having the donor gel containing a medical agent to be penetrated into the external conductor; a reference portion having a reference gel, mounted with the current-carrying device on the surface on the side opposite to the reference gel, and disposed on the external conductor apart from the donor portion; and an electrode film for supplying current from the current-carrying device to the donor gel and the reference gel.

Iontophoresis patch

A blood pump apparatus comprises a housing, a centrifugal pump section including an impeller and rotating inside the housing to feed a fluid by a centrifugal force, an impeller rotational torque generation section for attracting thereto said impeller and rotating said impeller; and a plurality of grooves for hydrodynamic bearing provided on an inner surface of said housing at a side of said impeller rotational torque generation section, each of the grooves for hydrodynamic bearing having a first side and a second side both extending from a periphery of said portion in which a groove for hydrodynamic bearing is formed toward a central side thereof and opposed to each other, a third side connecting one end of said first side and one end of said second side to each other, and a fourth side connecting said other end of said first side and said other end of said second side to each other; said first side and said second side are formed as a circular arc respectively in such a way that centers of said circular arcs are different from each other.

Blood pump apparatus

A ventricular assist system includes a controller supplying a DC voltage or an AC voltage, and electromagnets adapted to be adhered to an infarct portion of a heart at the time of embedding a pump. After embedding the system, cells enclosed in capsules are released into the surroundings of the infarct portion by use of a catheter. The capsules are magnetic so that they can be concentrated onto the infarct portion by magnetic fields of the electromagnets, and are broken in the vicinity of the infarct portion, whereby cells effective for regeneration of cardiac muscles can be conveyed to the infarct portion in a noninvasive manner after the embedding of the ventricular assist system.

Cardiac assist system with cell transplantation aspects

A sensorless magnetic bearing type blood pump apparatus includes a blood pump and a control mechanism. The blood pump has electromagnets for rotating a rotating body in a non-contact condition, and a hydrodynamic bearing section for rotating the rotating body in a non-contact condition when operation of the electromagnets is stopped. The apparatus is devoid of any sensors for determining the position of the rotating body. The control mechanism includes a pulse width modulation type electromagnet driving unit, a carrier component measuring unit for measuring carrier components of voltage and current in the driving unit, a modulation factor calculating unit which calculates a modulation factor using the carrier wave data, and a bearing mode changing-over mechanism for effecting change-over from the magnetic bearing mode to the hydrodynamic bearing mode when the calculated modulation factor is outside a predetermined range and for returning to the magnetic bearing mode after the change-over.

Sensorless magnetic bearing type blood pump apparatus

A blood pump system for an artificial heart including: a control unit for controlling a blood pump, the control unit including a first alarm generating part for generating a first alarm signal according to the state of the blood pump, and a speaker for outputting an audible sound upon receiving the first alarm signal when the blood pump is in an abnormal state; a supervisory section configured to supervise the state of the control unit; a determining section configured to determine whether the control unit is in an abnormal state or not, based on output signal from the supervisory section; and a second alarm generating part for generating a second alarm signal according to the state of the control unit, based on the result of determination by the determining section.

Blood pump system for artificial heart and apparatus supervisory system

A centrifugal blood pump apparatus has a centrifugal pump section including an impeller having a first magnetic material therein and rotating inside the housing to feed a fluid by a centrifugal force generated during a rotation thereof; an impeller rotational torque generation section having a rotor having a magnet for attracting the first magnetic material of the impeller thereto, and a motor for rotating the rotor; and a dynamic pressure groove formed at a portion, of an inner surface of the housing, located at a rotor-disposed side thereof. The centrifugal blood pump apparatus further includes an electromagnet for attracting the impeller in a direction opposite to a direction in which the magnet of the rotor attracts the impeller and helping the impeller levitate.

Centrifugal blood pump apparatus

A centrifugal fluid pump assembly includes a body section and a control mechanism 6. The body section includes a housing, an impeller rotatable within the housing, and a motor for rotating the impeller. The pump assembly includes a motor current flow rate-related data storage section for storing, for a plurality of different predetermined viscosities, predetermined viscosity-related flow rate data formed from a plurality of motor current flow rate relation data at a plurality of different impeller rotational speeds at predetermined fluid viscosity, a fluid measurement data inputting section, an impeller rotational speed measurement function, a motor current measurement function, and a flow rate calculating sectionfor using a fluid viscosity value, an impeller rotational speed value, a measured motor current and data stored in the motor current flow rate-related data storage section to calculate a fluid flow rate.

Centrifugal fluid pump assembly with flow rate calculating section

A centrifugal fluid pump apparatus includes a control mechanism; and a bodyincluding a pump section having an impeller rotating inside a housing; a rotor having an impeller attraction magnet; a motor for rotating the rotor; an impeller attraction electromagnet for attracting the impeller thereto; an impeller-position detection sensor; and a groove for hydrodynamic bearing provided on an inner surface of the housing. The control mechanism has a position sensor output monitoring function or an electromagnet current monitoring function, a motor current monitoring function; and an emergency impeller rotation function. The impeller rotation function operates when the sensors or the electromagnet has a failure by using the position sensor output monitoring function or the electromagnet current monitoring function to rotate the impeller by utilizing the groove for hydrodynamic bearing.

Centrifugal fluid pump apparatus

An ultrasonic diagnostic device comprising an ADC,that converts signals to digital format, a time axis extension unit,that is capable of writing and reading the digital data, a data compression unit,that compresses the read data, a memory unit,that stores the compressed data, a data expanding unit that expands the compressed data stored in the memory unit, and a DAC,that converts the expanded data from a digital format to an analog format, wherein optimum images can be displayed for diagnosis by means of filtering, logarithmically converting, and detecting before inputting the data into the digital scan converter

Ultrasonic diagnostic device

It is an object of the present invention to provide a cardiovascular information measurement system capable of performing an accurate blood pressure measurement and calculating an accurate cardiovascular index in consideration of the pulsation of a blood vessel wall. To achieve this object, the cardiovascular information measurement system includes ultrasonic transducer groups (,) for simultaneously detecting sectional shapes (,) of two arterial portions, a cross-sectional area calculation unit (,) for calculating cross-sectional areas of the two arterial portions on the basis of the detected sectional shapes, a flow velocity calculation unit (,) for calculating an average blood flow velocity in an artery on the basis of the cross-sectional areas calculated by the cross-sectional area calculation unit (,), a pulse wave velocity calculation unit (,) for calculating a pulse wave propagation velocity between the two arterial portions in accordance with time changes in the detected sectional shapes of the two arterial portions, a relative blood pressure calculation unit (,) for calculating a relative blood pressure value to a reference blood pressure value obtained in a specific time phase, on the basis of the calculated blood flow velocity and the calculated pulse wave propagation velocity, and an absolute blood pressure calculation unit (,) for calculating an absolute blood pressure value on the basis of the relative blood pressure value and the reference blood pressure value obtained in the specific time phase and measured in advance.

Cardiovascular information measurement system

Disclosed is a celiac diagnostic apparatus in which the characteristics of a filter for filtering a wave reflected by a tissue inside an object are made steep, and an ultrasonic wave capable of making a high-accuracy diagnosis for the object is used. C1, C2, and C3 are constituted using variable capacitance diodes. Three LC filters, i.e., an LC filter constituted by L1 and C1, an LC filter constituted by L2 and C2, and an LC filter constituted by L3 and C3 are serially connected to constitute the filter, whose cutoff characteristics is still practical even when the cutoff frequency exceeds 20 MHz.

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Ashigarakami-gun, Japan

Mitsutoshi Yaegashi