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    • 1. 发明授权
    • Extruded guide catheter shaft with bump extrusion soft distal segment
    • 挤出引导导管轴与凸出挤压软远端段
    • US6106510A
    • 2000-08-22
    • US86074
    • 1998-05-28
    • Peter A. LunnNasser RafieeDavid J. LentzPeter G. Strickler
    • Peter A. LunnNasser RafieeDavid J. LentzPeter G. Strickler
    • A61M25/00A61M25/09A61B6/00
    • A61M25/0012A61M25/005A61M25/0054A61M2025/0081
    • A medical catheter including a continuous liner defining a guidewire lumen. The liner has a constant inner diameter and a constant outer diameter. A continuous layer is braided over the liner and encapsulated between the liner and a bump layer. The bump layer has a proximal segment, and a bump section. The bump section has a transition zone at the proximal end of the bump section. The proximal segment has a distal end affixed to the proximal end of the bump section. The proximal segment of the bump layer has an outer diameter which is less than the outer diameter of the bump section of the bump layer. The transition zone has an outer diameter which smoothly transitions from the outer diameter of the distal end of the proximal segment of the bump layer to the larger outer diameter at the distal end of the transition zone. The bump layer is encapsulated between the outer jacket layer and the braided layer. The outer jacket layer has a constant outer diameter and an inner diameter conforming to the variable outer diameter of the bump layer. The bump layer is made of a material with a greater flexural modulus than that of the outer jacket layer, such that the flexibility of the catheter is greater at the distal end of the catheter than at the proximal end of the catheter.
    • 一种医疗导管,其包括限定导丝管腔的连续衬里。 内衬具有恒定的内径和恒定的外径。 连续层被编织在衬垫上并且封装在衬垫和凸起层之间。 凸起层具有近端段和凸起部分。 突起部分在凸起部分的近端处具有过渡区域。 近端段具有固定到凸起部分的近端的远端。 凸块层的近端段的外径小于凸块层的凸块部分的外径。 过渡区具有从突起层的近端段的远端的外径平滑地过渡到过渡区的远端处的较大外径的外径。 凸起层被封装在外护套层和编织层之间。 外护套层具有恒定的外径和与凸起层的可变外径一致的内径。 凸起层由具有比外护套层的挠曲模量更大的挠曲模量的材料制成,使得导管的柔性在导管的远端比在导管的近端处更大。
    • 3. 发明授权
    • Thinwall guide catheter
    • 薄壁导管
    • US5964971A
    • 1999-10-12
    • US939081
    • 1997-09-26
    • Peter A. Lunn
    • Peter A. Lunn
    • A61M25/00A61M25/16B32B31/26
    • A61M25/0012A61M25/005A61M2025/0047A61M25/0053
    • An apparatus and method of making a thinwall guide catheter useful in delivery of therapeutic devices through a body vessel. The method comprises braiding a flat wire over the surface of a cylindrical core, placing a heat bondable polymer tube over the braid, surrounding the polymer tube with a heat shrink sleeve, heating the assembly to a temperature and for a time period sufficient to expand the core into braid interstices and bond the polymer tube to substantially only the outer surface of the braid and finally removing the heat shrink sleeve and core. The resulting guide catheter has approximately half the wall thickness of prior guide catheters and has excellent column stiffness and kink resistance.
    • 一种制造薄壁引导导管的装置和方法,其可用于通过身体血管输送治疗装置。 该方法包括在圆柱形芯的表面上编织扁线,将可热粘合的聚合物管放置在编织物上方,用热收缩套围绕聚合物管,将组件加热到足以扩大 芯部形成编织间隙,并将聚合物管基本上仅粘合到编织物的外表面上,最后移除热收缩套筒和芯体。 所得到的导向导管具有大约一半的先前引导导管的壁厚,并且具有优异的柱刚度和扭结阻力。
    • 4. 发明授权
    • Expandable percutaneous introducer sheath
    • 可扩展的经皮导管鞘
    • US5997508A
    • 1999-12-07
    • US623094
    • 1996-03-28
    • Peter A. LunnSteven B. Conner
    • Peter A. LunnSteven B. Conner
    • A61M25/06A61M5/178
    • A61M25/0662A61M2025/0024
    • An expandable percutaneous introducer sheath is disclosed which can be selectively enlarged to accommodate a range of sizes of interventional devices. The introducer sheath can retain an enlarged size without requiring an additional support member. The introducer sheath comprises an outer tube which contains expandable gaps along the length of the outer tube, expandable leaflets which are connected to the outer tube, an inner tubular member which is insertable into the outer tube, and a detent means to retain the enlarged size of the outer tube. The outer tube has a cross-sectional profile which is both kink resistant and minimizes the size of the puncture wound in the vasculature by providing a helix in the outer tube. An inner tubular member is inserted into the lumen of the outer tube and, because of the interference fit of the lumen outer tube to the outer diameter of the inner tubular member, the lumen of the outer tube enlarges at the expandable gaps.
    • 公开了一种可扩张的经皮导管鞘,其可以选择性地扩大以适应一系列介入装置的尺寸。 引导器护套可以保持放大的尺寸,而不需要额外的支撑构件。 引导器护套包括外管,外管包含沿着外管长度的可扩张间隙,连接到外管的可膨胀小叶片,可插入外管的内管状构件和保持放大尺寸的制动装置 的外管。 外管具有横截面轮廓,该截面轮廓具有抗扭结性,并且通过在外管中提供螺旋使在脉管系统中伤口穿刺的尺寸最小化。 内管状构件被插入到外管的内腔中,并且由于管腔外管与内管构件的外径的过盈配合,外管的内腔在可扩张间隙处扩大。
    • 7. 发明授权
    • Catheter exchange device
    • 导管交换装置
    • US5388590A
    • 1995-02-14
    • US98185
    • 1993-07-28
    • John B. HorriganPeter A. LunnDavid S. Brin
    • John B. HorriganPeter A. LunnDavid S. Brin
    • A61M25/01A61B5/00
    • A61M25/0169
    • The invention includes an exchange system, a guidewire anchoring means and a method of use for catheters exchangeable over a guidewire (55). The guidewire anchoring means restricts movement between the guidewire (55) and the anchoring means. The anchoring means comprises a shaft (35) with a longitudinal lumen (80) therethrough, the lumen (80) being in fluid communication with a balloon (25 or 30) disposed on the distal end of the shaft (35). A tubular split housing (5 or 10) surrounds the distal end of the shaft (35) and adheres to the balloon (25 or 30), the balloon (25 or 30) being sized to expand to a larger size than the inside diameter of the split housing (5 or 10). The inside diameter of the split housing (5 or 10) is sized to slidably receive a catheter, while the outside diameter of the split housing (5 or 10) is sized to slidably fit within a guide catheter (50 ).
    • 本发明包括交换系统,导丝锚固装置和用于可在导丝(55)上交换的导管的方法。 导丝锚固装置限制导丝(55)和锚定装置之间的移动。 锚定装置包括具有穿过其中的纵向腔(80)的轴(35),所述腔(80)与设置在轴(35)的远端上的球囊(25或30)流体连通。 管状分离式外壳(5或10)围绕轴(35)的远端并且粘附到球囊(25或30)上,球囊(25或30)的尺寸设定成比内径 分离式外壳(5或10)。 分割式外壳(5或10)的内径的尺寸设计成可滑动地容纳导管,而分离式外壳(5或10)的外径的尺寸可滑动地配合在导向导管(50)内。