Terumo Kabushiki Kaisha

Karl Storz-gmbh & Co. Kg

Ryohei Katsuki

Yuuki Hara

Tsuyoshi Hasegawa

Tomoaki Hashimoto

Makoto Jinno

Hiroaki Sano

Shigeru Omori

Tomoki Utsugida

Deanna Hirzel

Pari Shimoyama

Masao Hitotsuyanagi

Jack Marlotte

Rie Nakamura

An extracorporeal blood circulation system monitors blood level in a reservoir which temporarily stores the blood. A memory storage unit stores blood pressure measurements from a pressure sensor monitoring a blood pressure within a tube unit conveying blood from the reservoir relative to atmosphere. A processing unit that detects a height of a top surface of the blood stored in the reservoir based on changes in the blood pressure measurements and a conservation of mechanical energy of a blood flow inside the tube unit. A notification is generated if an abnormality is detected in the height of the blood in the reservoir.

Extracorporeal circulation management device with blood level detection in a reservoir without a sensor

An extracorporeal circulation apparatus has a blood reservoir temporarily storing blood and a presence information acquisition unit to detect presence or absence of blood at respective wall locations in a two-dimensional array. A control unit determines the position of a blood surface on the basis of consecutive elements in the array having detected blood along at least one of a first direction parallel to the blood surface and a second direction perpendicular to the blood surface.

Extracorporeal circulation apparatus

An extracorporeal circulation management device pumps blood in synchronization with heartbeats of a patient based on measurements of blood flow. Maximum and minimum blood flow measurement samples are compared with upper and lower threshold values to identify candidate timing for a systolic phase and diastolic phase of the heartbeat. During pulsatile pumping of the blood using the candidate timing, differences in the pulsatile flow measurements are determined. Based on the size of the difference, a final correction may be made to identification of the systolic and diastolic phases, and the corrected phase information is used to start and stop the motor unit.

Extracorporeal circulation management device with heartbeat synchronizaton

An extracorporeal blood circulation system reduces the risk of generation of air bubbles entering the circulation circuit associated with placement of a pressure sensor that detects a patient's blood pressure at a blood removal line. Instead of directly measuring pressure at the blood removal line where suction exists, an intermediate part pressure sensor detects pressure between a centrifugal pump and an oxygenator. A controller identifies a discharge pressure specific to the centrifugal pump based on a rotation speed of the pump and a blood flow rate. The discharge pressure and the intermediate pressure values are combined to estimate the pressure at the blood removal line.

Pressure sensing extracorporeal circulation device

A medical manipulator system has an operating unit including a grip handle and a composite input unit, a working unit detachably mounted on the operating unit and including an end effector, and a controller for controlling the operating unit. The controller judges starting and ending of a surgical case and increments the usage count of the working unit based on a manner in which the working unit is mounted and dismounted, and the times at which the working unit is mounted and dismounted, and disables the working unit if the usage count of the working unit exceeds a preset count.

Medical manipulator system

A medical manipulator includes an actuator block having a motor, a coupler detachably mounted on the actuator block and having a rotor connected to a rotatable shaft of the motor, a distal-end working unit mounted on a distal end of a joint shaft, which extends from the coupler and is operatively connected to the rotor by a wire, an encoder for detecting an angular displacement of the motor, and a controller for reading a signal from the encoder and comparing the read signal with an operation command value for energizing the motor through a feedback loop. The controller outputs a signal having a level greater than the resolution of the encoder and a lower operation limit of the motor within a range in which the distal-end working unit remains still, and monitors the angular displacement of the motor for thereby determining whether the feedback loop is malfunctioning or not.

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Kanagawa, Japan

Ryohei Katsuki