Abstract: An AE signal is acquired from an AE sensor disposed on a fixed part of the rotating machine, and the presence or absence of rubbing in the rotating machine is determined, based on the AE signal. As a result, if the rubbing is determined to be present, a rubbing suppression operating condition imposed on control of the rotating machine is decided to suppress the rubbing.

Abstract: A catheter system includes: a catheter assembly that includes: an inner needle having a needle tip at a distal end thereof, a hollow needle hub fixed to a proximal end section of the inner needle, a catheter shaft into which the inner needle is inserted, and a catheter hub having the inner needle inserted thereinto, wherein the catheter hub is fixed to a proximal end section of the catheter shaft; and a catheter gripper that is attachable to and detachable from the catheter assembly, wherein the catheter gripper includes: a gripping member, and an attaching/detaching mechanism configured to attach and detach a proximal end section of the needle hub to and from a first end section of the gripping member.

Abstract: A catheter assembly includes: an inner needle configured to puncture a living body; a catheter configured to allow the inner needle to be inserted therethrough; a catheter hub located at a proximal end of the catheter; a valve body located in an internal space of the catheter hub; an opening member located on a proximal side of the valve body, the opening member comprising: a cylindrical barrel portion, a neck portion extending from a distal end of the barrel portion, wherein a diameter of the neck portion is smaller than a diameter of the cylindrical barrel portion, and a foot portion extending to a proximal side of the barrel portion, wherein the opening member is configured to move in a distal direction to open the valve body; and a movement inhibiting mechanism that resists movement of the opening member in the distal direction via a contact portion.

Abstract: A catheter assembly includes: an inner needle having a blade surface at a distal end; a catheter through which the inner needle is inserted; a catheter hub through which the inner needle is inserted and that is fixed to a proximal end of the catheter; a valve that comprises a pair of inclined portions that are inclined so as to become closer to each other in a distal direction, an end surface located at distal ends of the pair of inclined portions, and a slit formed along a longitudinal direction of the end surface, wherein the valve is located in an internal space of the catheter hub; and an opening member that is located in the internal space, is formed in a tubular shape, has a space inside, is located proximal of the valve in an initial state, and is configured to move in a distal direction to open the valve.