Patents Assigned to Asahi Intecc Co., Ltd.
  • Balloon catheter
    Patent number: 10589064
    Abstract: A balloon catheter having a distal-end tip which, even if caught in a stenosis, will not break apart from a distal end of an inner shaft of the balloon catheter when the balloon catheter is forcibly rotated or pulled by an operator. The distal-end tip of the balloon catheter is fixed to the distal end of the inner shaft, and a connecting tube covers an outer surface of the distal end of the inner shaft and a proximal end of the distal-end tip. An inwardly protruding portion of the connecting tube is embedded into the distal-end tip. This creates an anchoring effect and increases a welding area between an outer surface of the distal-end tip and an inner surface of the connecting tube, thereby reducing a risk that the distal-end tip will break apart from the distal end of the inner shaft.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: March 17, 2020
    Assignee: ASAHI INTECC CO., LTD.
    Inventors: Yuta Kubo, Michihiro Ikegaya, Yoshiki Kaneko
  • TUBULAR BODY
    Publication number: 20200069918
    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: Application
    Filed: April 3, 2019
    Publication date: March 5, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Hiroyuki NISHIHARA, Aya TAKECHI
  • HEAT SHRINKABLE TUBE
    Publication number: 20200072397
    Abstract: A heat shrinkable tube has a hollow tubular shape and includes an outer peripheral surface, an inner peripheral surface, and a plurality of protruded portions provided on the inner peripheral surface and extending in directions intersecting with each other.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventor: Masaru YAGI
  • PLASMA GUIDE WIRE
    Publication number: 20200069361
    Abstract: Provided is a plasma guide wire including a core shaft, a coil, a tip, a coil-core shaft joining region, and first to third insulating resin tubes. The first insulating resin tube is disposed on the outer periphery of the coil, and extends proximally from the tip to beyond the coil-core shaft joining region. The second insulating resin tube is disposed on the outer periphery of the core shaft, is joined to the proximal end of the first insulating resin tube, and extends from the proximal end of the first insulating resin tube to the proximal side of the core shaft. The second insulating resin tube is harder than the first insulating resin tube. The third insulating resin tube is disposed on at least a portion of a region of the inner periphery of the first insulating resin tube, proximal to a location facing the proximal end of the coil.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventor: Tadahiro KOIKE
  • Connection structure and guide wire having the connection structure
    Patent number: 10576253
    Abstract: A connection structure includes a multi-thread coil formed by winding first metal element wires formed of a first metal and second metal element wires formed of a second metal arranged between a first metal body including the first metal and a second metal body including the second metal. The first metal body is connected to the first metal element wires of the multi-thread coil, and the second metal body is connected to the second metal element wires of the multi-thread coil. The connection structure imparts improved flexibility to the connection between the first and second metal bodies, and an appropriate connection can be provided even when the first and second metal bodies are made of dissimilar metals.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: March 3, 2020
    Assignee: ASAHI INTECC CO., LTD.
    Inventor: Satoshi Yonezawa
  • Junction structure and catheter having the junction structure
    Patent number: 10569048
    Abstract: Provided is a junction structure between a first tubular member and a second tubular member, and a catheter including the junction structure. An interface between the first tubular member and the second tubular member has an uneven shape in the longitudinal direction of the junction structure along a circumferential direction of the first tubular member and the second tubular member. At least one of the first tubular member and the second tubular member includes a protruding portion that protrudes into the other tubular member only between an inner periphery of the other tubular member and an outer periphery of the other tubular member. The joining strength of the junction structure is improved against a pressure in the radial direction.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: February 25, 2020
    Assignee: ASAHI INTECC CO., LTD.
    Inventor: Yusuke Shimizu
  • CATHETER
    Publication number: 20200046386
    Abstract: A catheter according to an embodiment of the present disclosure includes a mesh member, a first hollow shaft, a front end tip, a guiding film, a second hollow shaft, and a core wire. The mesh member has a tubular shape and is radially expandable and contractable. The guiding film is disposed on the mesh member and has a front end located between a base end of the front end tip and a front end of the first hollow shaft. A thickness of the front end of the guiding film is larger than a thickness of a portion where a thickness of the guiding film is the smallest.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Yuta NAKAGAWA, Tomoya SAWATA, Kizuku KUNIYASU, Fumiyoshi OSHIMA, Toshihiko TSUKAMOTO
  • CATHETER
    Publication number: 20200046387
    Abstract: A catheter according to an embodiment of the present disclosure includes a mesh member, a first hollow shaft, a front end tip, a guiding film, and a core wire. The mesh member has a tubular shape and is radially expandable and contractable. The guiding film is formed with a stretchable material and is disposed on the mesh member, the guiding film having a front end located between a base end of the front end tip and a front end of the first hollow shaft. A thickness of a base end of the guiding film is larger than a thickness of the front end of the guiding film.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Kizuku KUNIYASU, Tomoya SAWATA, Fumiyoshi OSHIMA, Yuta NAKAGAWA, Toshihiko TSUKAMOTO
  • CATHETER
    Publication number: 20200046385
    Abstract: A catheter including a mesh member having a tubular shape and being radially expandable and contractable, a first hollow shaft connected to a proximal end of the mesh member, a distal end tip, and a core wire. The first hollow shaft includes a distal end side shaft having a distal end connected to the proximal end of the mesh member and a proximal end side shaft having a distal end connected to a proximal end of the distal end side shaft. An opening is provided at the proximal end of the distal end side shaft in a connection portion between the distal end side shaft and the proximal end side shaft. A sealing member covering an outer periphery of the core wire and allowing the core wire to be slidable thereinside is arranged at the distal end of the proximal end side shaft in the connection portion.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Toshihiko TSUKAMOTO, Kizuku KUNIYASU, Fumiyoshi OSHIMA
  • CATHETER
    Publication number: 20200046937
    Abstract: A catheter according to an embodiment of the present disclosure includes a mesh member, a first hollow shaft, a front end tip, a guiding film, a second hollow shaft, a core wire, and a holding member. The mesh member has a tubular shape and is radially expandable and contractable. The guiding film is disposed on the mesh member and has a front end located between a base end of the front end tip and a front end of the first hollow shaft. The second hollow shaft is connected to the front end tip and disposed so as to protrude in a space inside the mesh member toward a base end side. The holding member has a substantially ring-like shape or a substantially C-like shape in a cross-sectional view, and is provided at the core wire so as to cover the second hollow shaft.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Yuta NAKAGAWA, Toshihiko TSUKAMOTO, Tomoya SAWATA
  • CATHETER
    Publication number: 20200046388
    Abstract: A catheter including a mesh member having a tubular shape and being radially expandable and contractable, a first hollow shaft, and a distal end tip. The mesh member has a first twisted wire including a plurality of wires that is braided with a second twisted wire including a plurality of wires. Part of the plurality of wires of the first twisted wire is joined to part of the plurality of wires of the second twisted wire in joining regions at crossover portions between the first twisted wire and the second twisted wire.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Moritaka OGIDOU, Yuta NAKAGAWA, Fumiyoshi OSHIMA, Keisuke KAWAGUCHI
  • CATHETER AND BALLOON CATHETER
    Publication number: 20200030573
    Abstract: A catheter includes a tubular inner layer, a reinforcing layer disposed at least partially within the inner layer or on an outer circumference of the inner layer, and an outer layer. The reinforcing member is made of wound wires, each adjacent pair of the wires having a gap therebetween. A bonding portion is disposed in the gap of the reinforcing layer and includes an inner layer protruding portion of the inner layer that extends into the outer layer and is engaged with an outer layer protruding portion of the outer layer that extends into the inner layer. This configuration enlarges the area across which the outer layer and the inner layer are bonded to each other within the gap of the reinforcing layer, leading to a strengthened bond between the outer layer and the inner layer.
    Type: Application
    Filed: October 4, 2019
    Publication date: January 30, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Yuusuke SHIMIZU, Hiroshi ITO, Shogo HASE
  • DILATOR
    Publication number: 20200016386
    Abstract: A dilator includes a shaft with a tapered portion having an outer diameter that is smaller at a distal end than at a proximal end; a proximal end portion provided at a proximal end side of the tapered portion; and optionally a distal end portion provided at a distal end side of the tapered portion. Pitches of adjacent portions of the spirally-arranged protruding portion provided on the tapered portion are different (either smaller or larger) than those of adjacent portions of the spirally-arranged protruding portion provided on distal end side of the proximal end portion and/or on the distal end portion.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Yukihiro FUSEYA, Hideaki MAKI, Daiki TAKAHASHI, Akira SAWAI, Marina KITAI
  • DILATOR
    Publication number: 20200016385
    Abstract: Provided is a dilator capable of increasing the diameter of a hole formed on the wall of a digestive tract and the like while ensuring distal-end flexibility and maintaining pushability and torquability even when a shaft is longer and curved. A dilator includes a hollow shaft having an outer diameter that is smaller at a distal end than at a proximal end, and a grip portion connected to the proximal end of the shaft. A spirally-arranged protruding portion protruding outwardly is provided on an outer peripheral surface of the shaft. The spirally-arranged protruding portion has gaps between adjacent portions along a longitudinal axis of the shaft.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Yukihiro FUSEYA, Hideaki MAKI, Daiki TAKAHASHI, Akira SAWAI
  • DILATOR
    Publication number: 20200016387
    Abstract: A dilator includes a hollow shaft having a tapered portion and a body portion having a distal end located at a proximal end of the tapered portion. The tapered portion has an outer diameter that is smaller at a distal end than at a proximal end, and the body portion extends toward a proximal end side in an axis direction of the shaft. A spirally-arranged protruding portion is provided on an outer peripheral surface of the tapered portion, and the spirally-arranged protruding portion has gaps between adjacent portions of the spirally-arranged protruding portion along an axis direction of the shaft. A proximal end of the spirally-arranged protruding portion is located at the proximal end of the tapered portion.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Yukihiro FUSEYA, Hideaki MAKI, Daiki TAKAHASHI, Akira SAWAI, Marina KITAI
  • DILATOR
    Publication number: 20200016384
    Abstract: A dilator includes a hollow shaft having an outer diameter that is smaller at a distal end than at a proximal end, and a connector connected to the proximal end of the shaft. A spirally-arranged protruding portion protruding outwardly is provided on an outer peripheral surface of the shaft. The spirally-arranged protruding portion has gaps between adjacent portions of the spirally-arranged protruding portion along a longitudinal axis of the shaft. The shaft has a first position and a second position along the longitudinal axis, the second position being located distal to the first position. The outer diameter of the shaft is smaller at the second position than at the first position. An inclination angle of the spirally-arranged protruding portion relative to the longitudinal axis is different at the second position than at the first position.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Yukihiro FUSEYA, Hideaki MAKI, Daiki TAKAHASHI, Akira SAWAI, Marina KITAI
  • INDWELLING DEVICE
    Publication number: 20200008824
    Abstract: An indwelling device that includes a hollow tubular body having a first end and a second end, and the first end is made of an elastic member.
    Type: Application
    Filed: July 5, 2019
    Publication date: January 9, 2020
    Applicant: ASAHI INTECC CO., LTD.
    Inventors: Daisuke KIKUCHI, Satoshi NAMIMA, Toshihiko TSUKAMOTO
  • CATHETER
    Publication number: 20190381278
    Abstract: A catheter having a proximal end portion having gaps between axially adjacent portions of an element wire where an inner layer is joined to an outer layer through the gaps; and a distal end portion where the axially adjacent portions of the element wire come into contact with each other, and a cavity is provided between the inner layer and a coil body. The catheter has excellent followability to a guide wire and is capable of efficiently transmitting a pushing force and/or rotational force from an operator to the distal end of the catheter.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 19, 2019
    Applicant: ASAHI INTECC CO., LTD.
    Inventor: Takayuki HORI
  • ROPE-DRIVEN MANIPULATOR
    Publication number: 20190375115
    Abstract: A manipulator includes an operation portion, wherein forceps are opened and closed, when a first forceps pulley of a first forceps piece and a second forceps pulley of a second forceps piece rotate in opposite directions to each other, a direction of the forceps is changed when both pulleys rotate in the same direction, and a direction of the forceps can be changed about a P axis (pitch axis); a first driving portion comprising a left driving pulley and a right driving pulley slidably movable along a Z axis (main axis) direction; and an endless loop-shaped wire rope.
    Type: Application
    Filed: August 26, 2019
    Publication date: December 12, 2019
    Applicant: ASAHI INTECC CO., LTD.
    Inventor: Shinji YAMAGUCHI
  • Catheter
    Patent number: 10493234
    Abstract: A catheter has excellent torque transmissivity and excellent flexibility, thus enabling easy insertion of the catheter into a blocked portion of a blood vessel. Additionally, the catheter easily restores to its original form even when the catheter is curved and deformed a large amount. Thus, a break at a border area between a catheter main body part and a distal end tip is prevented when the catheter is bent and deformed. This improves the operability of the catheter with a combination device such as a guide wire. The catheter includes a hollow coil body formed of at least one helically wound stranded wire. The at least stranded wire includes a plurality of wires wound into a helical structure.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: December 3, 2019
    Assignee: ASAHI INTECC CO., LTD.
    Inventors: Yuya Kanazawa, Keisuke Ushida