Abstract: A catheter includes a proximal shaft having a relatively high rigidity, a distal shaft provided on a front portion of the proximal shaft so as to be in fluid communication with proximal shaft and having a rigidity lower than that of the proximal shaft, a hub mounted to the vicinity of a rear end of the proximal shaft and configured to allow a pressure applying apparatus to be mounted to the hub, and a balloon provided on a front portion of the distal shaft so as to be in fluid communication with the distal shaft and configured to receive pressure applied from the hub. The catheter also includes a guide wire lumen. In this catheter, at least a front portion of the distal shaft is configured as a grooved portion having a groove or grooves.

Abstract: The present invention provides a polymer-metal complex composite, which comprises a block copolymer capable of serving as a constituent member of a polymeric micelle and a metal complex having MRI contrast ability, accumulates in a tumor-specific manner, achieves high image contrast even in a small amount, and has reduced side effects and a long retention time in blood. The polymer-metal complex composite of the present invention comprises a block copolymer (A) represented by general formula (a) and a metal complex (B) having MRI contrast ability, wherein the composite comprises a structure in which a carboxyl anion of poly(carbo) in the copolymer (A) is attached to the metal complex (B) via a metal atom (M).

Abstract: A positioning stage that can prevent an excessive force from being imparted to a positioned wafer, a bump forming apparatus equipped with such a positioning stage, and a bump forming method performed using such a positioning stage are provided. A biasing member that biases a wafer towards a positioning member has a contact surface that substantially faces a wafer-holding surface at an angle. The contact surface is in contact with an outer peripheral area of the wafer so as to bias the wafer slantwise towards the wafer-holding surface. With a resiliently deformable member, the positioning member is brought into contact with the wafer and is held at a predetermined position. When a bias force exceeding a predetermined magnitude is imparted to the positioning member, the resiliently deformable member becomes resiliently deformed so as to allow the positioning member to recede from the predetermined position.

Abstract: A positioning stage that can prevent an excessive force from being imparted to a positioned wafer, a bump forming apparatus equipped with such a positioning stage, and a bump forming method performed using such a positioning stage are provided. A biasing member that biases a wafer towards a positioning member has a contact surface that substantially faces a wafer-holding surface at an angle. The contact surface is in contact with an outer peripheral area of the wafer so as to bias the wafer slantwise towards the wafer-holding surface. With a resiliently deformable member, the positioning member is brought into contact with the wafer and is held at a predetermined position. When a bias force exceeding a predetermined magnitude is imparted to the positioning member, the resiliently deformable member becomes resiliently deformed so as to allow the positioning member to recede from the predetermined position.

Abstract: A catheter includes a proximal shaft having a relatively high rigidity, a distal shaft provided on a front portion of the proximal shaft so as to be in fluid communication with proximal shaft and having a rigidity lower than that of the proximal shaft, a hub mounted to the vicinity of a rear end of the proximal shaft and configured to allow a pressure applying apparatus to be mounted to the hub, and a balloon provided on a front portion of the distal shaft so as to be in fluid communication with the distal shaft and configured to receive pressure applied from the hub. The catheter also includes a guide wire lumen for allowing a guide wire to be inserted through the guide wire lumen. The guide wire lumen has a distal side aperture positioned on the front side from a front end of the balloon and a proximal side aperture positioned on the rear side from a rear end of the balloon. In this catheter, at least a front portion of the distal shaft is configured as a grooved portion having a groove or grooves.

Abstract: In a method and apparatus for obtaining magnetic resonance data from water-containing substance, nuclear spins are excited in the substance in the presence of a homogenous static magnetic field, while an electrical current is flowing in the subject. The electrical current flowing in the subject shortens the spin-spin relaxation time and the spin-lattice relaxation time, and lengthens the apparent diffusion coefficient of the substance.

Abstract: A tubular medical device comprises a tubular body, a lumen, a compression-resisting member inserted in the lumen so that it cannot move in the direction of the axis of the tubular body, with its distal end located at a predetermined distance from the distal end of the tubular body toward the proximal end, a pull wire whose distal end is secured near the distal end of the tubular body at a position deviated from the axis of the tubular body and which is led in the tubular body to the proximal end of the tubular body, and a pulling mechanism for pulling the pull wire toward the proximal end of the tubular body which is attached to the proximal end of the tubular body and has a manipulation dial. The compression-resisting member consists of a main body and a secured portion. The compression-resisting member main body, and has a property of resisting compression in the axial direction of the tubular body. The secured portion retains the main part in place in the lumen.

Abstract: In a method and apparatus for obtaining magnetic resonance data from water-containing substance, nuclear spins are excited in the substance in the presence of a homogenous static magnetic field, while an electrical current is flowing in the subject. The electrical current flowing in the subject shortens the spin-spin relaxation time and the spin-lattice relaxation time, and lengthens the apparent diffusion coefficient of the substance.

Abstract: A tubular medical device comprises a tubular body, a lumen, a compression-resisting member inserted in the lumen so that it cannot move in the direction of the axis of the tubular body, with its distal end located at a predetermined distance from the distal end of the tubular body toward the proximal end, a pull wire whose distal end is secured near the distal end of the tubular body at a position deviated from the axis of the tubular body and which is led in the tubular body to the proximal end of the tubular body, and a pulling mechanism for pulling the pull wire toward the proximal end of the tubular body which is attached to the proximal end of the tubular body and has a manipulation dial. The compression-resisting member consists of a main body and a secured portion. The compression-resisting member main body, and has a property of resisting compression in the axial direction of the tubular body. The secured portion retains the main part in place in the lumen.

Abstract: A tubular medical device comprises a tubular body, a lumen, a compression-resisting member inserted in the lumen so that it cannot move in the direction of the axis of the tubular body, with its distal end located at a predetermined distance from the distal end of the tubular body toward the proximal end, a pull wire whose distal end is secured near the distal end of the tubular body at a position deviated from the axis of the tubular body and which is led in the tubular body to the proximal end of the tubular body, and a pulling mechanism for pulling the pull wire toward the proximal end of the tubular body which is attached to the proximal end of the tubular body and has an manipulating dial. The compression-resisting member consists of a main body and a secured portion. The compression-resisting member main body, and has a property of resisting compression in the axial direction of he tubular body. The secured portion retains the rain part in place in the lumen.