Abstract: A human body simulation device includes an aorta model that simulates an aorta, and a biological model that simulates a part of a human body and has a partial blood vessel model simulating a part of blood vessels. The aorta model includes a biological model connecting portion that attachably/detachably connects the biological model in a state where an inner cavity of the aorta model and an inner cavity of the partial blood vessel model are in communication with each other, and a fluid feeding portion connecting portion that connects a fluid feeding portion for feeding a fluid into the inner cavities.

Abstract: A medical instrument includes a hollow coil body including a winding wire that is spirally wound around a longitudinal axis of the coil body, and a cover member covering the winding wire of the coil body. The cover member includes an outer cover portion covering an outer peripheral surface of the coil body, and an inner cover portion covering an inner peripheral surface of the coil body and coupled to the outer cover portion. The inner cover portion includes a protrusion that protrudes radially inward from the coil body beyond a common tangent line of the winding wire in a longitudinal axis direction of the coil body. The protrusion is formed in a substantially annular shape around the coil body, and is disposed intermittently along the longitudinal axis direction of the coil body.

Abstract: A catheter includes a shaft part having a first shaft and a second shaft. The first shaft is a cylindrical member having a guide wire lumen into which a guide wire is inserted. The second shaft is a cylindrical member having an imaging lumen into which an imaging device for acquiring an image of an interior of a living body lumen is inserted, and is disposed alongside the first shaft. In a first region from a first position at a distal end portion of the shaft part to a second position further on a proximal end side than the first position, the second shaft is not joined to the first shaft. In a second region that is continuous with the first region and that is further on the proximal end side than the first region, the second shaft is joined to the first shaft.

Abstract: A balloon catheter includes an inner layer tube, an outer layer, a balloon, and an adhesive layer. The outer layer covers an outer peripheral surface of the inner layer tube. The balloon covers an outer peripheral surface of the outer layer. An inner space of the balloon and an inner cavity of the inner layer tube are in communication with each other. The adhesive layer is placed between the inner layer tube and the outer layer.

Abstract: A guide wire includes a core wire having a first magnetized region magnetized on the distal end side of the core wire, and a maximum value of the outer diameter of the first magnetized region is larger than an outer diameter of the distal end portion in an area located to the proximal end side of the first magnetized region.

Abstract: A guide wire includes a first core shaft, a second core shaft, a first tubular member, and a second tubular member. The first tubular member is disposed to cover (i) a contact portion where the first core shaft and the second core shaft are arranged opposite to each other so that their central axes coincide, and (ii) a part of each of the first core shaft and the second core shaft, the part being adjacent to the contact portion. The second tubular member, having a tubular shape, covers at least the first tubular member and is fixed to both the first core shaft and the second core shaft.

Abstract: A magnetization device that magnetizes a linear member, includes: a magnetization yoke that has a first end portion and a second end portion located on an opposite side of the first end portion, and is bent such that the first end portion and the second end portion are separated from and opposed to each other, and a magnetization coil that is wound around the magnetization yoke, and generates a magnetic field between the first end portion and the second end portion by application of a voltage.

Abstract: A plasma guide wire includes a guide wire main body, a first tube that is made of an insulating resin and covers a distal end side of the guide wire main body, a second tube that is made of an insulating resin and covers a proximal end side of the guide wire main body, and a third tube that is made of an insulating resin, covers an intermediate portion of the guide wire main body located between the distal end side and the proximal end side, has a distal end portion joined to a proximal end portion of the first tube, and has a proximal end portion joined to a distal end portion of the second tube. Any one or more of the first tube, the second tube, and the third tube forms a gas layer filled with gas, in conjunction with the guide wire main body.

Abstract: A heart model includes a deformable body forming a simulated ventricle therein that expand and contract, and a restraint body outside of the simulated ventricle and having a spiral outer shape, the restraint body regulating deformation of the deformable to generate a twist in the deformable body when the simulated ventricle expands.

Abstract: An elongated medical instrument includes a base instrument and a swollen gel film coating the base instrument. The swollen gel film includes a polymer including a repeating unit with a betaine structure and a repeating unit with a carboxyl group (excluding the repeating unit with the betaine structure). A method of providing an elongated medical instrument includes applying a coating agent to a base instrument, the coating agent including a polymer having a repeating unit with an ester-bonded betaine structure, an organic solvent, and water, and forming a swollen gel film by heating coating and hydrolyzing an ester bond in the polymer.

Abstract: A torque coil (two-layer coil structure) of the disclosed embodiments includes an inner coil formed by spirally winding metal wire, and an outer coil arranged to be in close contact with the outer periphery of the inner coil and formed by spirally winding metal wire. A winding direction of the inner coil and a winding direction of the outer coil are opposite from each other, and when the torque coil is twisted in the circumferential direction in which the diameter of the inner coil is increased, a change amount of the diameter of the outer coil is larger than a change amount of the diameter of the inner coil. The two-layer coil structure has high twisting rigidity, thus suppressing the occurrence of kinks due to rotational resistance.

Abstract: The guide wire includes a core shaft, a coil including a strand that is spirally wound around and covers an outer periphery of the core shaft, and a distal end joint part that joins a distal end of the core shaft and a distal end of the coil. The distal end joint part includes a dispersion portion in which a radiopaque first material is dispersed.

Abstract: A packaging body includes first and second sheet members superimposed on each other, and a sticking region formed on an outer periphery of the first and second sheet members. The sticking region has an opening portion in at least one part of the sticking region. The opening portion has an angled, convex shape and includes (i) a non-sticking portion in which the first and second sheet members are not stuck together and (ii) a plurality of first sticking portions that sandwich the non-sticking portion and in which the first and second sheet members are stuck together.

Abstract: A guide wire includes a core shaft and a coil body including a wire wound around the core shaft. The wire includes a long axis and a short axis in a transverse section. The coil body includes an inclined portion where an angle formed by the long axis of the wire and an axial line of the coil body is acute.

Abstract: A medical apparatus includes circuitry configured to acquire ultrasonic information, inside a living body, which is obtained from an ultrasonic probe that includes an ultrasonic sensor and applies ultrasonic waves into the living body, generate an ultrasonic echo image representing a longitudinal section of a blood vessel from the ultrasonic information, generate a guide image including a guideline extending along a center line of the blood vessel appearing in the ultrasonic echo image from the ultrasonic information, generate a composite image in which the ultrasonic echo image and the guide image are superimposed.

Abstract: An optical pressure sensor and a manufacturing method of an optical pressure sensor. The optical pressure sensor includes first and second members, and an optical transmission medium. The first member has a lateral wall portion extending from a first plate-shaped portion of the first member, and joined to a second plate-shaped portion of the second member. An airtight space is defined by the plate-shaped portions and the lateral wall portion. The optical transmission medium is attached to one of the plate-shaped portions on a side opposite to the airtight space side. A first reflective film is formed on the first plate-shaped portion facing the airtight space. The second plate-shaped portion on the first member side includes a first region facing the airtight space, and a second region facing the distal end surface of the lateral wall portion. A second reflective film is formed on the entire first region.

Abstract: A wire rope includes a strand that is formed by winding a plurality of metal wires. The strand includes a core wire and side wires. Each of the side wires is arranged on an outer periphery of the core wire. In a transverse section of the strand, each of the side wires includes end portions positioned at opposite ends in a circumferential direction of the core wire. Each of the end portions includes a contact portion in contact with an end portion of an adjacent side wire, and a non-contact portion not in contact with the adjacent side wire. A Vickers hardness of the contact portion is higher by 1% or more than a Vickers hardness of the non-contact portion. A surface roughness Ra of an outer peripheral surface of each of the side wires is 0.10 ?m or less.

Abstract: A catheter includes a shaft having a first lumen inside thereof, an expansion/contraction portion that is disposed on a distal end portion of the shaft and is expandable and contractible in a radial direction, and an actuation portion that expands and contracts the expansion/contraction portion. The expansion/contraction portion has a fixed portion fixed to the shaft, a sliding portion capable of sliding in a longitudinal direction of the shaft on an outer peripheral face of the shaft, and a suspension portion extending in the longitudinal direction of the shaft that connects the fixed portion with the sliding portion. When the sliding portion is slid toward the fixed portion by the actuation portion, the suspension portion expands in a radial direction of the shaft.

Abstract: A guide wire includes a core shaft and a cylindrical body that surrounds an outer periphery of a distal end side portion of the core shaft. The cylindrical body includes a first cylindrical portion and a second cylindrical portion located on a proximal end side of the cylindrical body with respect to the first cylindrical portion. A maximum dimension of an outer shape of a transverse section of the second cylindrical portion is larger than a maximum dimension of an outer shape of a transverse section of the first cylindrical portion, and a minimum dimension of the outer shape of the transverse section of the second cylindrical portion is smaller than a minimum dimension of the outer shape of the transverse section of the first cylindrical portion.

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.