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1.发明授权公开(公告)号：US11613635B2
公开(公告)日：2023-03-28
申请号：US16645810
申请日：2018-09-18
Applicant: SB-KAWASUMI LABORATORIES, INC.
Inventor： Noriaki Shirahama
Abstract: The purpose of the present invention is to provide a resin composition for manufacturing a medical storage container that has improved oxygen permeability and that tends not to have excessively lower transparency. To this end, the present invention pertains to a resin composition for manufacturing a medical storage container, the composition including polyethylene (a) and polymethylpentene (b). The resin composition contains, as polyethylene (a), a first polyethylene (a-1), which is a main component of the polyethylene (a), and a second polyethylene (a-2) having a lower density than the first polyethylene.
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公开(公告)号：US11471310B2
公开(公告)日：2022-10-18
申请号：US16971696
申请日：2019-03-18
Applicant: SB-KAWASUMI LABORATORIES, INC.
Inventor： Toshiyasu Yuba
Abstract: An indwelling device 1 is provided with: a sheath 20 that is capable of housing a stent graft 10; and a long shaft 30 that is configured to be capable of advancing or retreating inside the sheath along the axial direction. The shaft has a fixing tool 34 and a hollow tube 35 that are respectively engaged with a connection part 14 and a blood vessel wall fixing part 15 of the stent graft to restrict movement of an opening end 11a of the stent graft in the radial direction. The indwelling device is configured to be capable of releasing engagement between the connection part and the fixing tool and engagement between the blood vessel wall fixing part and the hollow tube independently of each other by displacing the shaft with respect to the stent graft in the axial direction.
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公开(公告)号：US11382735B2
公开(公告)日：2022-07-12
申请号：US16764408
申请日：2018-11-22
Applicant: SB-KAWASUMI LABORATORIES, INC.
Inventor： Kentaro Hidari , Toshiyasu Yuba
Abstract: The present invention eliminates the need for highly accurate alignment with a branched tubular tissue when implanting a stent graft. A stent graft 30 comprises: a framework section 31; and a tubular graft section 40. A side surface opening 42 that passes through to the lumen of the graft section is provided in one section of a tube wall 41 of the graft section. In the framework section, among the six frame bodies, the frame bodies 34, 35 that are provided facing the side surface opening section have a first frame body structure section Q that is present in the tube wall along the entire circumference, and a second frame body structure section P that is present in the tube wall in a partial region 41A, which excludes the side surface opening section in the circumferential direction of the tube wall.
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公开(公告)号：US20250152174A1
公开(公告)日：2025-05-15
申请号：US18837944
申请日：2023-03-22
Inventor： Kenjiro Yamaguchi , Yasuhiro Fujita
Abstract: The present invention provides an intravascular indwelling medical device having a structure capable of occluding a desired site within a blood vessel in a shorter time. An intravascular indwelling medical device (100) of the present invention is an intravascular indwelling medical device that dwells within a blood vessel (360) to occlude the blood vessel (360). The intravascular indwelling medical device (100) includes a mesh-form main body part (10) and a water-absorbing swelling material (20) that is disposed within the main body part (10) and swells upon absorbing water.
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公开(公告)号：US11844711B2
公开(公告)日：2023-12-19
申请号：US17041480
申请日：2019-03-20
Applicant: SB-KAWASUMI LABORATORIES. INC.
Inventor： Noriaki Shirahama
CPC classification number: A61F2/88 , A61F2/07 , A61F2/915 , A61F2210/0057
Abstract: This covered stent 100, which is released from a sheath 200 and placed in a lumen in a living body, is provided with: a tubular skeleton portion 11 which is stretchable in the axial direction and is expandable in the radial direction substantially perpendicular to the axial direction; and a stretch restriction portion 2 for restricting stretching of the skeleton portion in the axial direction. The stretch restriction portion is formed from a material different from that of the skeleton portion and restricts stretching of the skeleton portion in the axial direction when the skeleton portion is contracted in the radial direction while being stored in the sheath.
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Patent Agency Ranking
公开(公告)号：US11452625B2
公开(公告)日：2022-09-27
申请号：US17041540
申请日：2019-04-22
Applicant: Takao Itoi , SB-KAWASUMI LABORATORIES, INC.
Inventor： Takao Itoi , Noriaki Shirahama
Abstract: Provided is a stent which is not easily displaced from a dwell site in a biological lumen and which has an excellent ability to follow a biological lumen. This stent (bile duct stent 100) is to dwell inside a biological lumen (bile duct B) and is provided with a stent main body section (110) having a cylindrical shape. The stent main body section is configured to be capable of expanding and contracting in the radial direction that is approximately orthogonal to an axial direction, has a relatively large expanding force in one portion (center portion) corresponding to the predetermined position at the indwelling site in the biological lumen, and a relatively small expanding force at other portions (both end portions) which have different positions in the axial direction from that of the one portion.
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公开(公告)号：US20220331088A1
公开(公告)日：2022-10-20
申请号：US17640214
申请日：2020-08-20
Applicant: SB-KAWASUMI LABORATORIES, INC.
Inventor： Noriaki SHIRAHAMA
IPC: A61F2/07
Abstract: A membrane body for a tubular treatment device includes a tubular membrane portion (12). The membrane portion forms a multi-layer structure having a first layer (21) formed of a fiber and a second layer (22) having liquid permeability lower than that of the first layer.
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公开(公告)号：US20250128026A1
公开(公告)日：2025-04-24
申请号：US18717609
申请日：2022-12-14
Inventor： Yasuhiro Fujita , Kenjiro Yamaguchi , Nobuaki Hayashi
Abstract: The present invention provides a medical device having a structure with excellent operability. According to the present invention, there is provided a medical device (100) including: an elongated medical device body (10); a first operation wire (41) and a second operation wire (42), each of which extends along a longitudinal direction of the medical device body (10); and an operation part (70) that is configured to individually and simultaneously pull the first operation wire (41) and the second operation wire (42), in which the first operation wire (41) and the second operation wire (42) are disposed at opposite extreme positions in a transverse section of the medical device body (10). A distal end of the first operation wire (41) is fixed to a distal end part (10a) of the medical device body (10), and a distal end of the second operation wire (42) is fixed to the distal end part (10a) of the medical device body (10) at a position on a proximal end side with respect to the distal end of the first operation wire (41).
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公开(公告)号：US20240148530A1
公开(公告)日：2024-05-09
申请号：US18281343
申请日：2022-03-18
Inventor： Yusuke Tamai , Naoaki Yamamoto , Tomohiro Emi
CPC classification number: A61F2/9661 , A61F2/9517 , A61F2002/9665
Abstract: A placement device 1 is a placement device for placing a stent graft 50 in a biological lumen, the placement device including: a sheath 11 in which the stent graft is accommodated; string-like converting means 14 that causes at least a portion of the stent graft in an axial direction to be maintained in a contracted state in a state in which the stent graft is released from the sheath and is able to convert the portion from the contracted state to an expanded state; and operating means 20 operated to place the stent graft in the biological lumen. The operating means has a first operating portion 20A for releasing the stent graft from the sheath, and a second operating portion 20B for releasing restraint of the portion of the stent graft by the converting means.
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公开(公告)号：US11844681B2
公开(公告)日：2023-12-19
申请号：US17276181
申请日：2019-09-20
Applicant: SB-KAWASUMI LABORATORIES, INC.
Inventor： Noriaki Shirahama , Takashi Yoshimori
CPC classification number: A61F2/07 , A61F2002/065 , A61F2/856 , A61F2/954 , A61F2002/061
Abstract: The stent graft (10) is to be placed in a tubular tissue and is equipped with: a skeleton portion (11); a tubular graft portion (12) having, in part of a tube wall, a side opening (opening 121a of branch portion 121) that communicates with the lumen, the graft portion being provided along the skeleton portion; and a position adjustment portion (13) capable of adjusting the relative position of the side opening in the graft portion when the stent graft is placed in the tubular tissue.
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