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公开(公告)号：US20020065475A1
公开(公告)日：2002-05-30
申请号：US09995789
申请日：2001-11-29
发明人： Taiichiroh Meguro , Masashi Momota , Tomihisa Kato
IPC分类号： A61M025/00
CPC分类号： A61M25/09 , A61M29/02 , A61M2025/09091 , A61M2025/09125 , A61M2025/09183
摘要： In a medical guide wire 1, a rear half of a leading bulge portion (ellipsoidal helical spring) 5 forms a truncated cone shaped front catheter engagement portion 8. An inner wall of a balloon catheter 2 forms a spiral groove 9. The spiral groove 9 fits into the front catheter engagement portion 8 to provisionally connect the balloon catheter 2 to the front catheter engagement portion 8. The medical guide wire 1 and the balloon catheter 2 are inserted into the blood vessel with one single step procedure when the medical guide wire 1 is introduced into the blood vessel to place the balloon portion 10 at the stricture blood vessel area (P) to cure the stricture blood vessel area (P).
摘要翻译： 在医疗用导丝1中，前方的隆起部（椭圆形螺旋弹簧）5的后半部形成截锥形的前导管接合部8.气球导管2的内壁形成螺旋槽9.螺旋槽9 配合到前导管接合部8中，以将气囊导管2临时连接到前导管接合部8.医疗用导丝1和气囊导管2在医疗用导丝1 被引入血管中以将球囊部分10放置在狭窄的血管区域（P）处以固化狭窄的血管区域（P）。
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公开(公告)号：US5910364A
公开(公告)日：1999-06-08
申请号：US744316
申请日：1996-11-07
申请人： Naohiko Miyata , Masashi Momota , Minoru Saruta
发明人： Naohiko Miyata , Masashi Momota , Minoru Saruta
CPC分类号： A61M25/09 , B29C47/025 , A61M2025/09075 , A61M2025/09108 , A61M2025/09191 , B29C47/0014 , B29C57/00 , B29C63/38 , Y10T428/2933 , Y10T428/2936 , Y10T428/294 , Y10T428/2976
摘要： A core wire of a guide wire has a plurality of twisted thin threads, a distal end of the core wire being diametrically reduced to be a thinnest tip, which has twisted ends united together. A resin layer is coated on the outer surface of the core wire. The thinnest tip of the leading end of the core wire is squelched into a flat-shaped configuration so as to form a flat portion. The flat portion is shaped into a multiple-stepped structure in which the thickness of the flat portion is progressively reduced by three steps or more in approaching the distal end of the core wire.
摘要翻译： 引导线的芯线具有多个扭转的细线，芯线的远端径向减少为最薄的尖端，其扭绞端连接在一起。 树脂层涂覆在芯线的外表面上。 芯线的前端的最薄的尖端被压扁成扁平状，从而形成平坦部分。 平坦部分成形为多个阶梯结构，其中平坦部分的厚度在接近芯线的远端时逐渐减小三个台阶以上。
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公开(公告)号：US20240002987A1
公开(公告)日：2024-01-04
申请号：US18367077
申请日：2023-09-12
发明人： Nagisa KAMAKURA , Kazufumi SATO
CPC分类号： C22C38/38 , C22C38/22 , C22C38/001 , C22C38/02
摘要： A wire material for medical use made of stainless steel has a resilience rate of 96% or more after bending the wire material so that the ends of the wire material approach each other to strain the wire by a strain amount of 2%. Strain amount (%)=(R/(L−R))×100. R is a wire diameter of the wire material, and L is a distance between the ends when the wire material is bent so that the ends approach each other. The resilience rate (%)=(1−θ/180)×100. θ is an angle of intersection between two tangent lines extending from the ends of the wire material after bending.
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公开(公告)号：US20240001074A1
公开(公告)日：2024-01-04
申请号：US18369554
申请日：2023-09-18
发明人： Kosei IHARA
IPC分类号： A61M25/00
CPC分类号： A61M25/0023 , A61M25/0045
摘要： A medical tube includes a tubular core layer and an outer layer arranged at an outer periphery of the core layer and having an outer peripheral surface substantially parallel to an axial direction of the medical tube. The core layer has a tubular inner core layer composed of a fluorine-based resin, and an outer core layer composed of a resin having a Young's modulus higher than that of the fluorine-based resin and arranged at an outer periphery of the inner core layer. The core layer has a specific configuration in which crest portions protruding toward a radially outer side of the medical tube and valley portions protruding toward a radially inner side of the medical tube are arranged repeatedly in the axial direction of the medical tube.
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公开(公告)号：US20230410688A1
公开(公告)日：2023-12-21
申请号：US18229302
申请日：2023-08-02
IPC分类号： G09B23/30
CPC分类号： G09B23/30
摘要： A vascular lesion model including a blood vessel portion and a lesion portion divided into a plurality of lesion regions having different hardness. The lesion portion including at least one type of lesion region among a first lesion region contacting a part of an inner periphery of the blood vessel portion in a cross section perpendicular to a longitudinal direction and having a shape extending from the part of the inner periphery toward a center of the lesion portion, a second lesion region having a solid shape separated from an outer periphery of the lesion portion, a third lesion region separated from both ends of the lesion portion in the longitudinal direction and occluding the blood vessel portion, and a plurality of fourth lesion regions separated from the inner periphery of the blood vessel portion in a cross section perpendicular to the longitudinal direction, and arranged separately from one another.
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公开(公告)号：US20230381470A1
公开(公告)日：2023-11-30
申请号：US18227617
申请日：2023-07-28
发明人： Syouta ENDOU
IPC分类号： A61M25/10
CPC分类号： A61M25/1018 , A61M25/1025
摘要： A balloon catheter includes a hollow shaft having a lumen through which an expansion liquid flows, and an expandable and contractible balloon arranged so as to cover at least a part of an outer periphery of the hollow shaft. The hollow shaft has an opening that communicates between the lumen and an inside of the balloon, and an outer peripheral surface of the hollow shaft has a groove extending across the opening and along the outer peripheral surface.
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公开(公告)号：US20230381452A1
公开(公告)日：2023-11-30
申请号：US18225745
申请日：2023-07-25
发明人： Makoto NISHIGISHI
IPC分类号： A61M25/00
CPC分类号： A61M25/005 , A61M25/0032
摘要： A catheter having a shaft including a wire lumen, a sensor lumen that is arranged side by side with the wire lumen, a projection part that includes the wire lumen, projects to the more distal side than the distal end of the sensor lumen, and has a distal end opening in communication with the wire lumen at the distal end of the projection part, and a first notch that is formed on the more proximal end side than the projection part, and is in communication with the wire lumen. The first notch is formed on a side surface of the shaft, the side surface being positioned on the opposite side of the sensor lumen, and the shaft includes, in a section with the first notch, a bottom portion facing the first notch and a pair of side walls extending to the opposite side of the sensor lumen.
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公开(公告)号：US20230321410A1
公开(公告)日：2023-10-12
申请号：US18210093
申请日：2023-06-15
发明人： Naoki NOGUCHI , Hiroaki TAKAHASHI , Naoki KAKUMU
CPC分类号： A61M25/09 , A61M25/0045 , A61L29/085
摘要： An elongated medical device includes a first layer having a hollow cylindrical shape and containing a fluororesin having an adhesive functional group (adhesive resin) and a first colorant, and a second layer arranged in contact with an outer peripheral surface of the first layer and having a predetermined colored region formed of a second colorant having a color different from a color of the first colorant. The predetermined colored region is formed on a part of the outer peripheral surface of the first layer.
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公开(公告)号：US20230293859A1
公开(公告)日：2023-09-21
申请号：US18201185
申请日：2023-05-24
发明人： Fumitaka SATOH
IPC分类号： A61M25/09
CPC分类号： A61M25/09 , A61M2025/09191 , A61M2025/09175
摘要： A guide wire includes a core shaft and a twisted wire coil body having a plurality of wires twisted together and arranged along an outer periphery of the core shaft. The twisted wire coil body includes a distal end portion including a distal end and a feature portion, and a proximal end portion, and has a smaller outer diameter in the feature portion than at the proximal end portion. Among the plurality of wires, an outermost wire having a longest distance to a center point of the core shaft in a transverse cross section of the twisted wire coil body in the feature portion, has a smaller cross-sectional area than a wire having a longest distance to the center point in a transverse cross section of the twisted wire coil body at the proximal end portion. An inner diameter of the twisted wire coil body is constant.
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公开(公告)号：US20230255595A1
公开(公告)日：2023-08-17
申请号：US18136346
申请日：2023-04-19
发明人： Makoto NISHIUCHI , Fumiyoshi OSHIMA , Yuta KUBO
CPC分类号： A61B8/466 , A61B8/4227 , A61B8/4477 , A61B8/483 , A61B8/0841 , A61B8/5207
摘要： An image display device includes circuitry configured to acquire, from a human body, three-dimensional image information on an inside of the human body including a biological tube using a plurality of ultrasonic sensors, specify a position, in the biological tube, where a width of a longitudinal cross-section of the biological tube is maximum using transverse cross-section information on the biological tube included in the three-dimensional image information, generate an image representing the longitudinal cross-section of the biological tube at the position specified, and output the image generated to a display.
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