Abstract: A hemostasis valve assembly includes a housing, a hemostasis valve, a through-member, an operating member, and a actuator. The through-member can be positioned along a first direction in a first position that places the hemostasis valve in a closed state, and a second position that presses the hemostasis valve and places the hemostasis valve in an open state. The operating member can slide along a second direction not parallel to the first direction. The actuator can be positioned in a third position that positions the through-member in the first position, and a fourth position that presses the through-member and positions the through-member in the second position. Each time the operating member slides along the second direction, the actuator is switched to the third position or the fourth position.

Abstract: This guide wire includes a core shaft. A main body part of the core shaft, which is a portion 350 mm or more and 750 mm or less from a distal end of the core shaft, is made of a nickel-titanium alloy. An outer diameter of the main body part is 0.58 mm or more and 0.73 mm or less.

Abstract: A guide wire includes a core shaft including a distal end portion that is curved in a predetermined direction, a coil body covering the outer periphery of the core shaft, and a distal tip joining a distal end portion of the core shaft and a distal end portion of the coil body. The distal tip has a convex shape oriented toward a distal end side. In a cross section of the core shaft cut along a plane including the central axis, the distal tip includes a curve inner portion located on an inside of the curve of the distal end portion relative to the central axis of the core shaft and a curve outer portion located on an outside of the curve of the distal end portion relative to the central axis. A cross-sectional area of the curve inner portion is smaller than that of the curve outer portion.

Abstract: A measurement apparatus that includes a static magnetic field application part that applies a static magnetic field in a first direction to a measurement subject, a deflection magnetic field application part that applies a deflection magnetic field in a second direction different, to a portion of the measurement subject via a coil, a plurality of magnetic field detection elements respectively detect a magnitude of a magnetic field on the basis of an electromagnetic wave generated and propagated in a portion of the measurement subject due to an application of the deflection magnetic field, a calculation part that calculates an impedance distribution of at least a portion of a region where the electromagnetic wave is propagated inside the measurement subject, and an image information output part that generates and outputs an image showing information about inside the measurement subject.

Abstract: Embodiments disclosed herein relate to an aspiration catheter comprising a catheter body that can have a first end and a second end and an aspiration lumen extending through the catheter body. The aspiration lumen can have an aspiration opening located in a distal portion of the aspiration catheter. The catheter can have an assistive jet element extending through a wall of the aspiration lumen. The assistive jet element can have an assistive jet channel. The assistive jet element can be adaptable to draw blood through the assistive jet element from a location outside of the catheter body adjacent to the assistive jet element and into the aspiration lumen when suction is applied to the aspiration lumen and can be configured to break apart a thrombus or obstruction in the aspiration lumen.

Abstract: A hemostasis valve assembly includes a housing, hemostasis valve, through-member, actuator, and pin. The through-member is slidable along a first direction between a first position that closes a hemostasis valve, and a second position that opens the valve. The actuator can displace the through-member distally along the first direction by sliding along a second direction transverse to the first direction. A motion restricting groove on the through-member includes a closed position portion in which the pin is disposed when the through-member is in the first position; a first top portion in which the pin is disposed when the through-member reaches a position distal of the second position; an open holding portion in which the pin is disposed when the through-member is in the second position; and a second top portion in which the pin is disposed when the through-member reaches a position distal of the second position.

Abstract: A human body simulation device includes an organ model simulating an outer shape of an organ and having a liquid accommodating part, a gas-liquid separation tank having an internal space separately accommodating gas and liquid, and a gas supply/suction device supplying gas to the gas-liquid separation tank and sucking gas accommodated in the gas-liquid separation tank. The gas/liquid separation tank and the liquid accommodating part are in fluid communication for flowing liquid accommodated in the gas/liquid separation tank. When gas is supplied to the gas-liquid separation tank, the organ model expands by supplying an amount of liquid corresponding to the gas amount from the gas-liquid separation tank to the liquid accommodating part. When gas is sucked from the gas-liquid separation tank, the organ model contracts by sucking an amount of liquid corresponding to the gas amount from the liquid accommodating part to the gas-liquid separation tank.

Abstract: A lesion retrieval device includes a shaft having an elongated outer shape, a spirally-arranged protruding portion spirally protruding from an outer peripheral surface of the shaft, and an outer cylindrical tube having a hollow cylindrical shape and accommodating, inside thereof, part of a proximal end side of the shaft provided with the spirally-arranged protruding portion. The spirally-arranged protruding portion includes a wire rod that is spirally wound around the outer peripheral surface of the shaft, and a surface of the wire rod in a transverse cross section has irregularities.

Abstract: A vascular lesion model includes a tubular vascular model, and a lesion model arranged in a lumen of the vascular model. The lesion model includes a plurality of lesions arranged along a longitudinal direction of the vascular model, the plurality of lesions include a first lesion formed of a first polymeric material and a second lesion formed of a second polymeric material. At least a first end portion of the lesion model in the longitudinal direction is fixed to an inner peripheral surface of the vascular model to restrict movement of the lesion model along the longitudinal direction.

Abstract: An ultrasonic diagnostic system includes an ultrasonic diagnostic device having a probe, a moving device configured to move the probe, and a control device. When ultrasonic diagnosis is performed on a subject, the control device controls the moving device such that the probe is pressed against a body surface of the subject, and in a case where a specific pattern is designated as a movement pattern of the probe, controls the moving device such that the pressing of the probe on the body surface is canceled or alleviated, then controls the moving device such that the probe is moved with the specific pattern, and when the movement with the specific pattern is ended, performs a specific control for controlling the moving device such that the probe is pressed against the body surface.

Abstract: A coating film on an elongated medical device is composed of a polymeric material that has been crosslinked by a structure given by any of formulas (1) to (3).

Abstract: A guidewire comprises a core shaft, a coil body covering a distal end portion of the core shaft, and a coating agent covering an outer periphery of the coil body, wherein the coil body includes a distal coil body disposed on a distal side of the coil body, and a proximal coil body disposed on a proximal side of the distal coil body, a surface roughness of the proximal coil body is higher than a surface roughness of the distal coil body.

Abstract: A guide wire includes a core shaft including a distal end portion that is curved in a predetermined direction, a coil body covering the outer periphery of the core shaft, and a distal tip joining a distal end portion of the core shaft and a distal end portion of the coil body. The distal tip has a convex shape oriented toward a distal end side. In a cross section of the core shaft cut along a plane including the central axis, the distal tip includes a curve inner portion located on an inside of the curve of the distal end portion relative to the central axis of the core shaft and a curve outer portion located on an outside of the curve of the distal end portion relative to the central axis. A cross-sectional area of the curve inner portion is smaller than that of the curve outer portion.

Abstract: Resin-coated wire is capable of moving forward inside a drug solution-containing lumen of a catheter containing a drug solution, and thereby pushing out the drug solution from a distal end of the catheter. The resin-coated wire includes a wire, and a coating made of resin coating the wire. The coating has a distal end coating and a proximal end coating. The distal end coating is formed of a first resin material and coats a first part, which is a distal end portion of the wire. The proximal end coating is formed of a second resin material and coats a second part adjacent to a proximal end side of the first part of the wire. The first resin material has a higher affinity for water than the second resin material.

Abstract: A first operation mechanism 3 includes a first driving source 30 which generates a driving force based on a drive command and a first driving mechanism 32 which inclines a left-side traveling pedal 1c by the driving force from the first driving source 30. The first driving mechanism 32 has a first abutting portion 32a which abuts a pedal surface of the left-side traveling pedal 1c and a first driving unit 32b which inclines the left-side traveling pedal 1c by inclining the first abutting portion. The first driving unit 32b is arranged in a position shifted to a lateral side from a space in which the first abutting portion 32a moves.

Abstract: A medical ultrasonic sensor array includes a plurality of ultrasonic sensors having a plurality of first electrode plates, a plurality of piezoelectric elements, and a second electrode plate. Each of the ultrasonic sensors has a first electrode plate and a piezoelectric element sandwiched between the second electrode plate and the first electrode plate. Each first electrode plate of each ultrasonic sensor is separated from each other first electrode plate of each other ultrasonic sensor. The second electrode plate is a single body electrode plate shared by the plurality of the ultrasonic sensors. The second electrode plate includes a plurality of cavities, each cavity being formed in a surface of the second electrode plate at which the piezoelectric elements connect to the second electrode plate at a position between connection regions connecting a respective pair of the piezoelectric elements to the second electrode plate.

Abstract: A guide wire includes a core shaft, a coil body curved from the proximal end side to the distal end side of the guide wire, and a fixing portion fixing the core shaft to the coil body. The core shaft includes a first contact part in contact with an inner surface of the coil body on an opposite side to the curving direction, and a second contact part in contact with the inner surface of the coil body in the curving direction, at a position closer to the distal end than the first contact part. The fixing portion includes a first fixing portion fixing the core shaft to the coil body at a position closer to the proximal end than the first contact part, and a second fixing portion fixing the core shaft to the coil body at a position closer to the distal end than the second contact part.

Abstract: A catheter includes a hollow catheter shaft, and a distal tip connected to a distal end portion of the catheter shaft. A recess is formed in the distal end portion of the catheter shaft, and a proximal end portion of the distal tip is inserted into the recess. According to this catheter, joint strength of the distal tip and the catheter shaft can be enhanced.

Abstract: A guide wire including a core shaft that has a distal end portion and a proximal end portion. The distal end portion includes a first region having a flat shape in cross section, and a second region having a circular shape in cross section and having flexural rigidity higher than that of the first region. The first region and the second region are provided in the distal end portion in the stated order from a most distal end side, and at least two or more sets of the first region and the second region are provided at the distal end portion. Flat directions of the respective first regions are all identical.

Abstract: A catheter includes a shaft having a lumen inside the shaft, and a reinforcing body that is inserted in the shaft and extended along the lumen. The reinforcing body includes a first portion (main body part), and a second portion (distal end portion) that is positioned on the more distal end side than the first portion while being at a distal end portion of the shaft and has larger direct or indirect joining force relative to the shaft than the first portion. Such a catheter is able to increase the breaking strength.