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    • 4. 发明授权
    • Method for inserting a multiple catheter assembly
    • 插入多个导管组件的方法
    • US5624413A
    • 1997-04-29
    • US606152
    • 1996-02-23
    • David F. MarkelAnthony J. Madison
    • David F. MarkelAnthony J. Madison
    • A61M25/01A61M25/00
    • A61M25/0194
    • A method is provided for inserting a multiple catheter assembly into an area of a body to be catheterized through a single incision. Two independent catheters which are independently movable with respect to each other, or unattached to each other, along their entire length are inserted into the single incision. In use, the first catheter withdraws fluid from the area and the second catheter delivers fluid to the area. As part of the insertion method, the longitudinal distance between proximal portions of the two catheters are adjusted to provide a predetermined longitudinal distance between distal portions of the two catheters within the area.
    • 提供了一种用于通过单个切口将多个导管组件插入待导管的身体的区域中的方法。 两个独立的导管可相对于彼此独立地移动,或者彼此不相连,沿其整个长度被插入到单个切口中。 在使用中,第一导管从该区域抽出流体,而第二导管将流体输送到该区域。 作为插入方法的一部分,调整两个导管的近端部分之间的纵向距离,以在该区域内的两个导管的远端部分之间提供预定的纵向距离。
    • 5. 发明授权
    • Catheter having two coaxial lumens
    • 导管有两个同轴流明
    • US5053004A
    • 1991-10-01
    • US571930
    • 1990-08-24
    • David F. MarkelAnthony J. MadisonDavid E. RobertsWilliam R. Harkins
    • David F. MarkelAnthony J. MadisonDavid E. RobertsWilliam R. Harkins
    • A61M5/158A61M25/00
    • A61M5/1582A61M25/0009A61M2025/0031A61M2025/0034A61M2025/0039A61M25/0097A61M25/0102Y10T29/49826
    • A double-lumen catheter is made of two generally coaxial tubes. The tubes are joined, at their distal ends, by a sleeve inserted between the tubes, the sleeve being bonded to both tubes. The inner and outer tubes are connected, respectively, at their proximal ends, to first and second hubs. The hubs are bonded together. The distal ends of the tubes may be formed into a tapered tip, preferably having a rounded edge. The proximal ends of the tubes can be connected to external fluid devices. The invention also includes a method of making the catheter. According to this method, inner and outer tubes are separately formed, and the proximal end of each tube is connected to a hub. Then, the inner tube is threaded into the outer tube, until the distal ends of the tubes are near each other. A sleeve is inserted between the tubes, at the distal end, and the sleeve is then bonded to both tubes. The hubs are also bonded together. Thus, the tubes are firmly joined to each other, but only at their distal and proximal ends. The outer tube has a plurality of holes, located around its circumference, at the distal end, to provide access to the outer lumen. The distal tip provides an exit port for the inner lumen. The catheter can also be provided with a dilator/stylet which is initially inserted within the inner lumen, and which is withdrawn after the catheter has been inserted into a patient.
    • 双腔导管由两个大体上同轴的管制成。 这些管在其远端处通过插入在管之间的套筒连接,套筒连接到两个管。 内管和外管分别在其近端连接到第一和第二毂。 集线器结合在一起。 管的远端可以形成为锥形尖端,优选地具有圆形边缘。 管的近端可以连接到外部流体装置。 本发明还包括制造导管的方法。 根据该方法,分别形成内管和外管,并且每个管的近端连接到毂。 然后,将内管拧入外管,直到管的远端彼此靠近。 在管之间插入套管,在远端处,然后将套筒粘合到两个管上。 轮毂也结合在一起。 因此,管彼此牢固地接合,但仅在其远端和近端处。 外管在远端处具有围绕其圆周设置的多个孔,以提供对外腔的通路。 远端提供用于内腔的出口。 导管还可以设置有最初插入内腔内的扩张器/管心针,并且在导管插入患者体内之后将其取出。
    • 7. 发明授权
    • Multilumen catheter assembly and methods for making and inserting the same
    • 多组织导管组件及其制造和插入方法
    • US06719749B1
    • 2004-04-13
    • US09585149
    • 2000-06-01
    • Timothy SchweikertAnthony J. MadisonDonald A. Schon
    • Timothy SchweikertAnthony J. MadisonDonald A. Schon
    • A61M2700
    • A61M25/0009A61M25/0029A61M25/0068A61M25/007A61M25/008A61M2025/0031A61M2025/0037A61M2025/0081
    • A multilumen catheter assembly and methods for making and inserting the same are provided. The catheter assembly includes a unitary catheter and at least two distal end tubes which extend distally from the unitary catheter. The at least two lumens in the unitary catheter are in fluid communication with passageways through the distal end tubes. The catheter assembly may be made by extruding a unitary catheter tube having internal longitudinally extending lumens, then splitting the tube on its distal end portion to form distal end tubes. The tubes are then ground and polished to form a smooth surface on the exterior of the tubes. The catheter assembly may also be made by forming an outer layer on at least two longitudinally extending catheters while leaving two distally extending portions of the tubes outside the outer layer to form the distal end tubes. The multilumen catheter assembly may be inserted in a patient for acute and chronic catheterization and subcutaneously tunneled and inserted using a single insertion procedure while leaving the distal end tubes within the vessel capable of free movement and sealing the insertion site into an area to be catheterized.
    • 提供了一种多腔导管组件及其制造和插入方法。 导管组件包括整体导管和从整体导管向远端延伸的至少两个远端管。 整体导管中的至少两个腔与通过远端管的通道流体连通。 导管组件可以通过挤出具有内部纵向延伸的内腔的整体导管,然后在其远端部分上分裂管以形成远端管来制造。 然后将管研磨和抛光以在管的外部形成光滑表面。 导管组件也可以通过在至少两个纵向延伸的导管上形成外层,同时将管的两个远端延伸部分留在外层之外以形成远端管。 多腔导管组件可以插入患者中用于急性和慢性导管插入,并且使用单次插入程序皮下穿刺并插入,同时将远端管留在容器内能够自由移动并将插入部位密封到待导管的区域中。
    • 8. 再颁专利
    • Multilumen catheter assembly and methods for making and inserting the same
    • 多组织导管组件及其制造和插入方法
    • USRE40913E1
    • 2009-09-08
    • US10997558
    • 2004-11-24
    • Timothy M. SchweikertAnthony J. MadisonDonald A. Schon
    • Timothy M. SchweikertAnthony J. MadisonDonald A. Schon
    • A61M27/00
    • A61M25/0009A61M25/0029A61M25/0068A61M25/007A61M25/008A61M2025/0031A61M2025/0037A61M2025/0081
    • A multilumen catheter assembly and methods for making and inserting the same are provided. The catheter assembly includes a unitary catheter and at least two distal end tubes which extend distally from the unitary catheter. The at least two lumens in the unitary catheter are in fluid communication with passageways through the distal end tubes. The catheter assembly may be made by extruding a unitary catheter tube having internal longitudinally extending lumens, then splitting the tube on its distal end portion to form distal end tubes. The tubes are then ground and polished to form a smooth surface on the exterior of the tubes. The catheter assembly may also be made by forming an outer layer on at least two longitudinally extending catheters while leaving two distally extending portions of the tubes outside the outer layer to form the distal end tubes. The multilumen catheter assembly may be inserted in a patient for acute and chronic catheterization and subcutaneously tunneled and inserted using a single insertion procedure while leaving the distal end tubes within the vessel capable of free movement and sealing the insertion site into an area to be catheterized.
    • 提供了一种多腔导管组件及其制造和插入方法。 导管组件包括整体导管和从整体导管向远端延伸的至少两个远端管。 整体导管中的至少两个腔与通过远端管的通道流体连通。 导管组件可以通过挤出具有内部纵向延伸的内腔的整体导管,然后在其远端部分上分裂管以形成远端管来制造。 然后将管研磨和抛光以在管的外部形成光滑表面。 导管组件也可以通过在至少两个纵向延伸的导管上形成外层,同时将管的两个远端延伸部分留在外层之外以形成远端管。 多腔导管组件可以插入患者中用于急性和慢性导管插入,并且使用单次插入程序皮下穿刺并插入,同时将远端管留在容器内能够自由移动并将插入部位密封到待导管的区域中。
    • 9. 发明授权
    • Subcutaneous tunnelling device and methods of forming a subcutaneous
tunnel
    • 皮下隧道装置及形成皮下隧道的方法
    • US5944732A
    • 1999-08-31
    • US927392
    • 1997-08-27
    • J. Daniel RaulersonAnthony J. MadisonTimothy M. Schweikert
    • J. Daniel RaulersonAnthony J. MadisonTimothy M. Schweikert
    • A61B17/34A61B17/32
    • A61B17/3415A61B17/3417
    • A subcutaneous tunnelling device, a dilator and a method of forming a subcutaneous tunnel are provided. The device includes a trocar having a front end with a point configured for piercing skin, and a dilator which has a front end removably attached to the rear end of the trocar. The dilator is for dilating a section of a subcutaneous tunnel and includes a dilating section having a maximum diameter sized for dilating an interior surface of a subcutaneous tunnel for seating a catheter stabilizing cuff in the subcutaneous tunnel. The method of forming a subcutaneous tunnel includes the steps of inserting a trocar through a first location on a cutaneous surface and moving the trocar through subcutaneous tissue to form a subcutaneous tunnel. The trocar is at least partially removed and a front end of a dilator is attached to the trocar. A section of the tunnel is dilated by moving the dilator partially through the tunnel until the front end of the dilator reaches a first subcutaneous location in the tunnel. The dilator and trocar are at least partially withdrawn from the dilated tunnel section of the subcutaneous tunnel through the first end of the tunnel.
    • 提供皮下隧道装置,扩张器和形成皮下隧道的方法。 该装置包括一个具有前端的套管针,该前端具有用于刺穿皮肤的点,以及一个扩张器,其具有可拆卸地附接到套管针的后端的前端。 扩张器用于扩张皮下隧道的一部分,并且包括具有最大直径的扩张部分,其尺寸用于扩张皮下隧道的内表面,用于将导管稳定袖带放置在皮下隧道中。 形成皮下隧道的方法包括以下步骤:将套针针穿过皮肤表面上的第一位置,并通过皮下组织移动套管针以形成皮下隧道。 套管针至少部分地被去除,并且扩张器的前端附接到套管针。 通过将扩张器部分地移动通过隧道,扩张器的一部分扩张,直到扩张器的前端到达隧道中的第一皮下位置。 扩张器和套管针至少部分地通过隧道的第一端从皮下隧道的扩张隧道部分撤出。
    • 10. 发明授权
    • Splittable multilumen catheter assembly
    • 可分离多腔导管组件
    • US07018374B2
    • 2006-03-28
    • US10659824
    • 2003-09-11
    • Donald A. SchonAnthony J. MadisonTimothy M. Schweikert
    • Donald A. SchonAnthony J. MadisonTimothy M. Schweikert
    • A61M27/00
    • A61M25/0023A61M25/0009A61M25/0029A61M25/0068A61M25/007A61M25/0071A61M25/008A61M2025/0031A61M2025/0034A61M2025/0037A61M2025/0081A61M2025/0188
    • A multilumen catheter assembly is provided, which includes a unitary portion and at least two distal end tubes extending distally from the unitary portion. The unitary portion includes an exterior having a generally round or oval shape in cross section and includes at least two distal end tubes of generally circular (or other) cross sectional shape extending longitudinally therethrough. The catheter assembly may be made by extruding a unitary tube having internal longitudinally extending lumens (of circular or other shape), then splitting the tube on its distal end portion to form distal end tubes. The tubes are then ground and polished, the finished tubes retaining in combination the generally oval cross sectional shape of the unitary extrusion, or the finished tubes can each be finished to a circular, or other, cross sectional shape; or the finished tubes could include a combination of cross sectional shapes over its longitudinal length.
    • 提供了一种多腔导管组件,其包括整体部分和从整体部分向远侧延伸的至少两个远端管。 整体部分包括具有大致圆形或椭圆形横截面的外部,并且包括至少两个纵向延伸穿过其中的大致圆形(或其他)截面形状的远端管。 导管组件可以通过挤出具有内部纵向延伸的腔(圆形或其他形状)的整体管制成,然后在其远端部分上分裂管以形成远端管。 然后对管进行研磨和抛光,成品管将整体挤压件的大致椭圆形截面形状保持在一起,或者成品管可以完成为圆形或其它横截面形状; 或者成品管可以包括其纵向长度上的横截面形状的组合。