Abstract: According to a method for producing a stent which is formed into a tubular body and includes at least one marker formed from a marker housing and a marker insert including: using an indenter having a partially spherical shaped distal end, the distal end coming into contact with the marker insert when the marker insert is pressed with the indenter and is pressure fitted to an opening provided on the marker housing to fix it thereon, a sufficient load can be applied to a radiopaque marker insert when the marker insert is attached to the stent, and further a stent having a radiopaque marker whose marker housing has little damage can be produced.

Abstract: A method for producing an in-vivo indwelling member includes a step of winding a metal wire (1) to form a primary coil (2-4), a step of giving the primary coil (2-4) a shape to form a secondary coil (10-19), and a step of inserting the secondary coil (10-19) into an inner hollow section (43) of a shaping mold (40). The secondary coil (10-19) includes different patterns such as a helical shape (20, 22-25, 29, 61, 63-65), a linear shape (21, 26, 28), and a circular arc shape (27, 50-53, 60, 62). When the secondary coil (10-19) is pushed into the inner hollow section (43), the secondary coil (10-19) makes contact with the inner wall surface of the inner hollow section (43), and a portion between different patterns is randomly curved. Accordingly, the in-vivo indwelling member has a three-dimensional structure that corresponds to the shape of the inner hollow section (43). The in-vivo indwelling member is less likely to deviate from the inside of an aneurysm when released into the aneurysm.

Abstract: According to a method for producing a stent which is formed into a tubular body and includes at least one marker formed from a marker housing and a marker insert including: using an indenter having a spherical shaped distal end, the distal end coming into contact with the marker insert when the marker insert is pressed with the indenter and is pressure fitted to an opening provided on the marker housing to fix it thereon, a sufficient load can be applied to a radiopaque marker insert when the marker insert is attached to the stent, and further a stent having a radiopaque marker whose marker housing has little damage can be produced.

Abstract: A method for producing an in-vivo indwelling member includes a step of winding a metal wire (1) to form a primary coil (2-4), a step of giving the primary coil (2-4) a shape to form a secondary coil (10-19), and a step of inserting the secondary coil (10-19) into an inner hollow section (43) of a shaping mold (40). The secondary coil (10-19) includes different patterns such as a helical shape (20, 22-25, 29, 61, 63-65), a linear shape (21, 26, 28), and a circular arc shape (27, 50-53, 60, 62). When the secondary coil (10-19) is pushed into the inner hollow section (43), the secondary coil (10-19) makes contact with the inner wall surface of the inner hollow section (43), and a portion between different patterns is randomly curved. Accordingly, the in-vivo indwelling member has a three-dimensional structure that corresponds to the shape of the inner hollow section (43). The in-vivo indwelling member is less likely to deviate from the inside of an aneurysm when released into the aneurysm.

Abstract: A stent delivery system comprises a delivery catheter with a balloon and a stent. The stent delivery system is characterized in that when a force to move the stent in the axial direction of the catheter is applied to the stent, a holding mechanism is formed in a part of the balloon to prevent the stent from falling down. According to this invention, the stent delivery system that is capable of preventing the stent from falling down and has excellent track ability can be provided without requiring complicated manufacturing processes.

Abstract: A catheter having a proximal shaft and a distal shaft each having a proximal end section and a distal end section. The distal end of the proximal shaft and the proximal end of the distal shaft are connected to each other, a catheter holding hub is connected to the proximal end of the proximal shaft, and a part of at least the distal shaft is constructed from an inner shaft and an outer shaft coaxially surrounding the inner shaft. The inner shaft is extended out from the outer shaft to the distal side. The lumen of the inner shaft forms a guidewire lumen. The catheter has a means for restricting relative movement of the outer shaft and the inner shaft occurring when pressing force exceeding a predetermined level is applied to the catheter.

Abstract: In a laser surgical equipment consisting of a laser oscillator oscillating a laser output, an optical waveguide connected to the laser oscillator and transmitting the laser output and a hand piece connected to the optical waveguide and radiating the laser output to a diseased part to be radiated, the improvement comprising a detector for detecting the laser output from the hand piece, a comparator for comparing the output of the detector with a predetermined value and a controller for controlling the laser oscillator by the output of the comparator and for setting the laser output of the hand piece to the predetermined value.

Abstract: In a laser surgical apparatus having a laser oscillator operable to oscillate to produce a laser beam, and an optical path connected to the laser oscillator for transmission of the laser beam, a hand piece at the fore end of the optical path is equipped with a vibrator element comprised of a piezoelectric transducer, and the vibrator element applies a vibration to the hand piece.