Jms Co., Ltd.

Noriaki Nakagawa

Junya Fujii

Shogo Kamito

Mitsuru Kaneko

Kunio Yoshinaga

Hirosato Maehama

Tadashi Okiyama

Shigeki Kawarabata

Aki Kitani

Kazuma Sunami

Shigeharu Yoshimura

A blood circuit capable of automatically performing priming for safe treatments. The blood circuit includes: a hemofilter () purifying blood; a blood removal line that has an end connected to an inlet of the hemofilter () and that includes a first blood removal line (), a second blood removal line (), and a third blood removal line (); a blood return line that has an end connected to an outlet of the hemofilter () and that includes the first blood return line () and the second blood return line (); and an anticoagulant (bypass) line () reducing a difference between (a) a pressure of a priming fluid flowing in the blood removal line and (b) a pressure of the priming fluid flowing in the blood return line.

Blood circuit, blood purification control apparatus, and priming method

A state detecting device can efficiently remove air bubbles from a liquid no matter whether the liquid flows forwards or backwards. The state detecting device () is provided in a tube to detect a state of a liquid flowing in the tube. The state detecting device () includes: a liquid hold part () in which the liquid is stored; an inflow part () from which the liquid enters the liquid hold part (); an outflow part () from which the liquid exits from the liquid hold part (); an inlet () that is a rear end portion of the inflow part (); and an outlet () that is a front end portion of the outflow part (). Here, the inlet () and the outlet () are arranged higher than a center of the liquid hold part () in a vertical direction when the state detecting device is provided in the tube.

State detecting device provided in a tube to detect a state of a liquid flowing in the tube

A pressure detector having a pipe inner pressure receiving opening section comprising a fluid passage for transporting fluid and a diaphragm hermetically sealing an opening made in one side face of the fluid passage, and a pressure detecting section coupled with the pipe inner pressure receiving opening section through the diaphragm and detecting physical variation of the diaphragm, characterized in that the diaphragm is provided loosely at the opening, and the pressure detecting section comprises at least a pressure detector, a load transmitting means having one end connected with the diaphragm and the other end touching the pressure detector, and means for loading the pressure detector. Since a fluid being measured is not exposed directly to air, possibility of clogging the circuit with a blood clot can be reduced; and since a stress load on the diaphragm is reduced, irreversible creep deformation of the diaphragm can be prevented; thereby allowing the pressure detector to perform continuous measurement stably with high accuracy for a long time.

Pressure detector and pressure detecting method

In a method of configuring a blood circuit for medical application, one unit component is selected for each of the divided unit sections and the selected unit components are combined to configure a blood circuit component. A blood circuit system database in which data with respect to the unit sections and unit components are stored is used. On the basis of the database, the selected unit component input to the computer. An assembly drawing of the blood circuit obtained by combining the selected unit components, a full length and an amount of filled blood are displayed on a display by using the database. When the displayed assembly drawing etc. is not fit for the desired specification, the selection of the unit component is changed, so as to display again the assembly drawing etc. of the blood circuit.

Method of configuring blood circuit for medical application and configuration apparatus therefore

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Hiroshima, Japan

Noriaki Nakagawa