Patents Assigned to Asahi Intecc Co., Ltd.
  • Tubular body
    Patent number: 10912929
    Abstract: A tubular body that includes a plurality of first wires distributed in an annular portion of the tubular body, and a plurality of deformed second wires alternately disposed between each of the plurality of first wires, the plurality of first wires and the plurality of deformed second wires being in an alternately twisted arrangement in a longitudinal direction of the tubular body, where each of the plurality of first wires has a substantially circular shape in a cross section view, and each of the plurality of deformed second wires has a non-circular shape in the cross section view, has an arcuate side portion that receive a part of a side surface of an adjacent wire of the plurality of first wires, and has an annular sector shape protruding in a radial direction in the cross section view of the tubular body.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: February 9, 2021
    Assignee: ASAHI INTECC CO., LTD.
    Inventors: Hiroyuki Nishihara, Aya Takechi
  • Catheter
    Patent number: 10888687
    Abstract: A catheter that prevents excessive concentration of stress while providing sufficient flexibility to a distal end portion of the catheter, even when the catheter is inserted and curved in patient's a blood vessel. Thus, breakage of the catheter at a radiopaque marker is prevented/reduced. The catheter includes a catheter tube and the radiopaque marker, which is disposed in the catheter tube. The radiopaque marker is fixed in the catheter so that a gap is provided between the radiopaque marker and the catheter tube in a radial direction of the catheter tube.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: January 12, 2021
    Assignee: ASAHI INTECC CO., LTD.
    Inventors: Satoru Matsumoto, Takayuki Hori
  • Balloon catheter
    Patent number: 10888341
    Abstract: A balloon catheter prevents detachment of a balloon from an inner shaft without using a conventional sleeve or heat-shrinkable tube. The balloon catheter includes a balloon, an inner shaft, and a tip having a proximal end portion that covers an outer periphery of a distal end of the balloon. The distal end of the balloon is sandwiched between the inner shaft and the proximal end portion of the tip, thereby joining the distal end of the balloon to the inner shaft and the tip.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: January 12, 2021
    Assignee: ASAHI INTECC CO., LTD.
    Inventors: Takeharu Katsurada, Yuta Kubo, Moritaka Ogido
  • DILATOR
    Publication number: 20210001098
    Abstract: A dilator includes a shaft in a hollow shape whose distal end has a smaller outer diameter than the proximal end, and a connector on the proximal end of the shaft. A spirally-arranged protruding portion on an outer peripheral face of the shaft has gaps between neighboring sections along an axis of the shaft. The shaft has a first location and a second location located closer to the distal end than the first location and having an outer diameter smaller than at the first location. The spirally-arranged protruding portion has, with respect to the axis, an angle of inclination that is larger at the second location than at the first location.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 7, 2021
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Yukihiro FUSEYA, Hideaki MAKI, Daiki TAKAHASHI, Akira SAWAI, Marina TSUZUKU
  • GUIDE WIRE
    Publication number: 20210000421
    Abstract: Provided is a guide wire including a detection portion, a housing, and a distal end side-covering. The detection portion includes a detection element configured to detect information about a vessel from inside of the vessel, and includes an extension portion extending from the detection element toward a proximal end side of the guide wire. The extension portion is configured to transmit the detected information. The housing includes a first accommodating portion housing the detection element, and includes a second accommodating portion housing the extension portion. The distal end side-covering covers the second accommodating portion. A distal end portion of the distal end side-covering is connected to a proximal end portion of the first accommodating portion.
    Type: Application
    Filed: September 17, 2020
    Publication date: January 7, 2021
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Akira SAWAI, Shuji SUGITA
  • DILATOR
    Publication number: 20210001097
    Abstract: The shaft of a dilator has a tapered part whose outer diameter at a distal end is smaller than at a proximal end, and either a distal end part and a proximal end part, or a proximal end part without a distal end part. If only the proximal end part is provided, the pitch of neighboring sections of a spirally-arranged protruding portion on the tapered part is larger than that on the proximal end part. If both the proximal end part and the distal end part are provided, the pitch of neighboring sections of the spirally-arranged protruding portion on the tapered part is larger than those on the distal end part or the proximal end part.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 7, 2021
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Yukihiro FUSEYA, Hideaki MAKI, Daiki TAKAHASHI, Akira SAWAI, Marina TSUZUKU
  • Medical device
    Patent number: 10863997
    Abstract: A medical device includes a mesh member capable of radially expanding and contracting, and a cylindrical member located at one end of the mesh member. The mesh member is woven from a first wire and a second wire. The cylindrical member includes a wrapping portion and a lining portion that are fixed to each other at fixation portions positioned within spaces defined by the first wire and the second wire. Neither the wrapping portion nor the lining portion is fixed to either of the first wire or the second wire. Upon expansion or radial contraction of the mesh member, movement of the first wire or the second wire is not interfered with by the cylindrical member. This reduces the concentration of stress at the end of the mesh member and thus the likelihood that either the first wire or the second wire will break.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: December 15, 2020
    Assignee: ASAHI INTECC CO., LTD.
    Inventor: Yukiko Enami
  • CATHETER
    Publication number: 20200353210
    Abstract: A catheter includes a hollow shaft, a multi-thread coil body covering the hollow shaft, and a cover member covering the multi-thread coil body. The multi-thread coil body includes a ring-shaped or substantially hollow cylindrical joint part in which distal ends of a plurality of element wires are joined in a circumferential direction, a coil main body located at a proximal side of the joint part in an axial direction, in which an outer shape of a cross section of each of the plurality of element wires is circular, and a transition part located between the joint part and the coil main body, in which a width of at least one of the plurality of element wires widens toward a distal end of the element wire.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventor: Takayuki HORI
  • CATHETER
    Publication number: 20200353217
    Abstract: A catheter includes a catheter main body having an inner layer, a braid wound around an outer periphery of the inner layer, and an outer layer covering the inner layer and the braid. The braid includes a plurality of first wires wound in one direction and a plurality of second wires wound in a direction crossing the one direction, and a first distal end joint part joining a distal end of a first one of the first wires and a distal end of a first one of the second wires and a second distal end joint part joining a distal end of a second one of the first wires and a distal end of a second one of the second wires are arranged at different positions in the longitudinal direction of the catheter main body.
    Type: Application
    Filed: July 30, 2020
    Publication date: November 12, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Naoya KAWASHIMA, Shuichi KUWADA
  • CATHETER
    Publication number: 20200353216
    Abstract: A catheter includes a hollow shaft having a tip part decreasing in diameter in a direction of a distal end, and a coil body covering the hollow shaft. The tip part has a small diameter portion, a large diameter portion, and a tapered portion gradually increasing in diameter from the small diameter portion toward the large diameter portion. The coil body has a substantially cylindrical joint part at which an end portion of the coil body in the direction of the distal end is joined in the circumferential direction. The joint part is located over the tapered portion and/or the small diameter portion, and in a state in which the hollow shaft extends substantially linearly, the distance between an inner peripheral surface of the joint part and outer peripheral surfaces of the tapered portion and/or the small diameter portion increases in the direction of the distal end.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventor: Takayuki HORI
  • BALLOON CATHETER
    Publication number: 20200330735
    Abstract: A balloon catheter is provided with a balloon; an outer shaft that is coupled to a proximal end of the balloon with a first coupling part; an inner shaft that is inserted into the outer shaft and that is coupled to a distal end of the balloon with a second coupling part; and a proximal end-side marker disposed on the inner shaft. The ends of the proximal end-side marker are disposed astride at least one of a distal end coupling position and a proximal end coupling position of the first coupling part.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 22, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Akihiro MIKI, Yutaka ERIKAWA
  • MEDICAL TUBE
    Publication number: 20200330734
    Abstract: A medical tube includes an inner tube shaft which has a proximal end portion and a distal end portion formed at a distal end side of the proximal end portion. The distal end portion has an outer diameter that is smaller than an outer diameter of the proximal end portion, and has on a surface thereof a slit extending in a first direction with respect to a longitudinal direction of the medical tube. The medical tube also includes an outer tube shaft that covers an outer periphery of the distal end portion of the inner tube shaft and has on a surface thereof a slit extending in a second direction crossing the first direction.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Shuji SUGITA, Akira SAWAI
  • SHAFT FOR IN VIVO RECOVERY MECHANISM
    Publication number: 20200315641
    Abstract: A shaft assembly for an in vivo recovery mechanism is provided with a shaft, and a side wire sparsely wound onto the outer circumference of the shaft and having protruding and recessed parts on the outer circumferential surface thereof. Therefore, when rotating the shaft assembly as part of an in vivo recovery mechanism, a substance in the body is caught between the sparsely wound side wire on the shaft and held by the protruding and recessed parts formed on the side wire, whereby performance for recovering and transporting the substance in the body can be improved.
    Type: Application
    Filed: June 19, 2020
    Publication date: October 8, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Hiroyuki NISHIHARA, Atsuhiro HANAOKA
  • Guidewire
    Patent number: 10792474
    Abstract: A guidewire includes a core shaft, a coil body disposed around an outer periphery of the core shaft, and a resin layer. The resin layer includes a proximal end part disposed around an outer periphery of the coil body; a distal end part located between the core shaft and the coil body distal to the proximal end part and having an outer diameter that is smaller than an outer diameter of the proximal end part; and a tapered part located between the proximal end part and the distal end part and having an outer diameter that decreases in the distal direction. The distal end part of the coil body is not covered with the resin layer. The guidewire has improved rotation performance (operativity) while maintaining insertability, and a risk that a distal end the resin layer will detach from the guidewire is reduced.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: October 6, 2020
    Assignee: ASAHI INTECC CO., LTD.
    Inventors: Keisuke Ushida, Toshiyuki Yoshida
  • GUIDEWIRE
    Publication number: 20200289795
    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.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 17, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventor: Keisuke USHIDA
  • GUIDEWIRE
    Publication number: 20200282185
    Abstract: A guidewire includes, for example, a core shaft, a coil body having a distal end that is joined to the core shaft at a position spaced proximally from a distal end of the core shaft, and a coating agent covering an outer periphery of the core shaft and the coil body. The core shaft includes a bulge portion joined at a position spaced distally from the distal end of the coil body, and the coating agent covers the core shaft and the coil body from a distal side of the bulge portion to a proximal side of a proximal end of the coil body except for an interior of the coil body.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventor: Kenta TSUGE
  • CATHETER
    Publication number: 20200276413
    Abstract: A catheter comprises a catheter body and a distal tip joined to a distal end of the catheter body and made of a resin including tungsten powder, wherein the distal tip includes a distal region and a proximal region disposed in a proximal side of the distal region, and a hardness of the distal region is higher than a hardness of the proximal region.
    Type: Application
    Filed: May 19, 2020
    Publication date: September 3, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Takeharu KATSURADA, Moritaka OGIDO
  • GUIDE WIRE
    Publication number: 20200238055
    Abstract: A guide wire includes a core shaft having a distal end portion stepwisely decreasing in diameter, an inner coil body covering at least a part of an outer periphery of the distal end portion, an outer coil body covering an outer periphery of the inner coil body, and a distal end fixing portion that fixes distal ends of the core shaft. The distal end portion includes a small diameter portion, a large diameter portion inside the inner coil body and the outer coil body further in the proximal end direction than the small diameter portion and having a larger diameter than that of the small diameter portion, and a tapered portion that increases in diameter from the small diameter portion toward the large diameter portion. A radiopaque marker is on an outer peripheral surface of the tapered portion. A gap is between the radiopaque marker and the inner coil body.
    Type: Application
    Filed: April 13, 2020
    Publication date: July 30, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Kenta TSUGE, Tomoki ICHIKAWA
  • CATHETER AND BALLOON CATHETER
    Publication number: 20200238049
    Abstract: A catheter includes a tubular inner layer, a reinforcement body disposed around the outer periphery of the inner layer, a protective layer covering the outer periphery of an end of the reinforcement body, and an outer layer covering at least the outer periphery of the protective layer. The protective layer covers the outer periphery of at least one end of reinforcement body, and the end of the reinforcement body covered with the protective layer is buried deeper in a side of the inner layer relative to a portion of the reinforcement body not covered with protective layer. The reinforcement body is prevented from lifting away from the inner layer when the catheter is bent even without increasing the outer diameter of the reinforcement body.
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Yuta KUBO, Takeharu KATSURADA, Moritaka OGIDO
  • GUIDE WIRE
    Publication number: 20200237355
    Abstract: A guide wire of the present disclosure includes a core shaft having a distal end portion reducing in diameter, a coil body wound to cover the distal end portion, and a distal end fixing portion fixing the core shaft and the coil body to each other. The distal end portion includes a small diameter portion, a large diameter portion, and a tapered portion between the small diameter portion and the large diameter portion. The core shaft and the coil body are fixed at a portion excluding the tapered portion. A first bending rigidity FR1 of the large diameter portion, a second bending rigidity FR2 of the small diameter portion, and a length L of the tapered portion satisfy the following expressions (1) and (2). In the following expressions (1) and (2), the unit of L is mm (millimeter).
    Type: Application
    Filed: April 13, 2020
    Publication date: July 30, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Kenta TSUGE, Ayuko MIYATA