Abstract: Disclosed herein is a blood pressure measuring device including: a pressure measuring tool 110; a fastening member 120 configured to fasten the pressure measuring tool 110 in rest position onto a skin region covering an anastomotic region of a shunt blood vessel 201; and a control circuit 130 configured to receive an input signal from the pressure measuring tool 110 and to process the input signal to calculate a pressure inside the anastomotic region of the shunt blood vessel 201.

Abstract: Disclosed herein is a blood pressure measuring device including: a pressure measuring tool 110; a fastening member 120 configured to fasten the pressure measuring tool 110 in rest position onto a skin region covering an anastomotic region of a shunt blood vessel 201; and a control circuit 130 configured to receive an input signal from the pressure measuring tool 110 and to process the input signal to calculate a pressure inside the anastomotic region of the shunt blood vessel 201.

Abstract: A hydraulic circuit system for a hydraulic excavator, which has a hydraulic circuit for an attachment, includes: a directional control valve 16 that supplies a hydraulic fluid to an attachment connected to the hydraulic circuit for an attachment; a first over-load relief valve unit 38 that is provided in one of lines of the hydraulic circuit for an attachment; a second over-load relief valve unit 39 that is provided in the other of the lines of the hydraulic circuit for an attachment; a first proportional solenoid valve 40 that controls set relief pressure of the first over-load relief valve unit 38; and a second proportional solenoid valve 41 that controls set relief pressure of the second over-load relief valve unit 39. The attachment having various characteristics and capacity, such as a hydraulic breaker or a crusher, can be applied to the hydraulic circuit for an attachment in a simple configuration.

Abstract: A hydraulic circuit system for a hydraulic excavator, which has a hydraulic circuit for an attachment, includes: a directional control valve 16 that supplies a hydraulic fluid to an attachment connected to the hydraulic circuit for an attachment; a first over-load relief valve unit 38 that is provided in one of lines of the hydraulic circuit for an attachment; a second over-load relief valve unit 39 that is provided in the other of the lines of the hydraulic circuit for an attachment; a first proportional solenoid valve 40 that controls set relief pressure of the first over-load relief valve unit 38; and a second proportional solenoid valve 41 that controls set relief pressure of the second over-load relief valve unit 39. The attachment having various characteristics and capacity, such as a hydraulic breaker or a crusher, can be applied to the hydraulic circuit for an attachment in a simple configuration.

Abstract: It is intended to provide a continuous blood purification system which shows extremely small errors in the dialysate flow rate and the replacement fluid flow rate and requires no pump calibration. The continuous blood purification system according to the present invention comprises a blood purifier (1), a blood circuit (2), a dialysate-supply line (4), a replacement fluid-supply line (5) and a water-removal line (6), wherein the dialysate-supply line (4), the replacement fluid-supply line (5) and the water-removal line (6) are provided with syringe pumps (43), (53) and (62), respectively. With respect to the dialysate-supply line (4), the dialysate which is drawn in at once to the syringe pump (43) can be continuously supplied in small portion to the blood purifier (1). With respect to the replacement fluid-supply line (5), the replacement fluid which is drawn in at once to the syringe pump (53) can be continuously supplied in small portion to the venous side or arterial side of the blood circuit.

Abstract: A blood purification apparatus in which the pressure in a circuit is measured by directly measuring the strain of an air trap by a strain sensor without providing a pressure measuring section in the circuit.

Abstract: A coupler joint (10) which includes a hollow cylindrical portion (11) opened at its opposite ends and a flange (12) disposed along the circumference of the cylindrical portion (11) near the longitudinal center to be interposed between a dialyzer connector (21) and a coupler (30) so as to be in liquid tight engagement; one side of the flange (12) of the coupler joint 10 being in liquid-tight abutment with an opening (22) of the connector (21) of the dialyzer (20), and the other side of the flange (12) being in liquid-tight abutment with the a seal surface 31 of the coupler (30). Accordingly, a dialysis solution does not collect in a concave groove (32) which accommodates an O-ring (40) of the coupler (30), and proliferation of bacteria can be prevented.

Abstract: A blood purification apparatus in which the pressure in a circuit is measured by directly measuring the strain of an air trap by a strain sensor without providing a pressure measuring section in the circuit.

Abstract: A coupler joint 10 which includes a hollow cylindrical portion 11 opened at its opposite ends and a flange 12 disposed along the circumference of the cylindrical portion 11 near the longitudinal center to be interposed between a dialyzer connector 21 and a coupler 30 so as to be in liquid tight engagement; one side of the flange 12 of the coupler joint 10 being in liquid-tight abutment with an opening 22 of the connector 21 of the dialyzer 20, and the other side of the flange 12 being in liquid-tight abutment with the a seal surface 31 of the coupler 30. Accordingly, a dialysis solution does not collect in a concave groove 32 which accommodates an O-ring 40 of the coupler 30, and proliferation of bacteria can be prevented.