公开(公告)号：US20090192485A1

公开(公告)日：2009-07-30

申请号：US12021204

申请日：2008-01-28

Applicant: Richard R. Heuser

Inventor： Richard R. Heuser

IPC: A61B17/22 ,  A61M25/10

CPC classification number: A61B17/221 ,  A61B17/3439 ,  A61B2017/00336 ,  A61B2017/00876 ,  A61B2017/2215

Abstract: An apparatus and method for removing an object from a tubular vessel are disclosed. The apparatus includes an expandable catheter and a plurality of wires configured to snare an object within a tubular vessel. A distal end of the expandable catheter may be manipulable between a first configuration wherein an opening thereon has a first diameter, and a second configuration wherein the opening has a second diameter which is larger than the first diameter. The apparatus may further include an inner catheter within its lumen, the inner catheter being extendable from the expandable catheter's lumen. The apparatus may additionally or alternatively include an outer catheter having a lumen from which the expandable catheter may be expanded.

Abstract translation: 公开了一种用于从管状容器中去除物体的装置和方法。 该装置包括可扩张导管和多个线，其配置成围绕管状容器内的物体。 可扩张导管的远端可以在其上具有第一直径的开口的第一构型和第二构型之间可操作，其中开口具有大于第一直径的第二直径。 该装置还可以包括在其内腔内的内导管，内导管可从可扩张导管的内腔延伸。 该装置可以另外地或替代地包括具有内腔的外导管，可扩张导管从该内腔可以被扩张。

公开(公告)号：US07166088B2

公开(公告)日：2007-01-23

申请号：US10352326

申请日：2003-01-27

Applicant: Richard R. Heuser

Inventor： Richard R. Heuser

IPC: A61M5/178

CPC classification number: A61M29/00 ,  A61B17/3415 ,  A61B17/3462 ,  A61B17/3498 ,  A61B2017/3441 ,  A61M25/0662 ,  A61M39/0613 ,  A61M2025/0004 ,  A61M2025/0681 ,  A61M2025/0687 ,  A61M2039/0633

Abstract: A catheter introducer system is provided with a catheter sheath having a valve providing for a friction fit around a catheter. The friction fit is selectively adjustable to vary between a first configuration for longitudinal movement of the catheter through the valve and a second configuration for holding the catheter longitudinally in place. The valve may includes a chuck to grip the catheter radially. The chuck may include an annular base and an opposed annular clamp, and a washer disposed between the base and the clamp. At least one of the base and the clamp may include a beveled surface that forces the washer radially inwardly as the base and the clamp are drawn together. The system also includes one or more dilators layered within the sheath. The layered dilators and sheaths are typically softer and more hydrophilic proceeding from the innermost dilator out to the sheath. The dilator may be reinforced by a wire embedded in the body of the dilator. The distal tip of the sheath may be stiffened by a ring affixed adjacent the distal end. The sheath may include in the innermost dilator a trocar formed of a flexible, hollow outer wire and an inner stiff needle, which can extend beyond the wire for piercing and be withdrawn to relax the wire for advancement of the dilator.

Abstract translation: 导管导引器系统设置有导管鞘，其具有提供围绕导管的摩擦配合的阀。 摩擦配合可选择性地可调节，以在导管通过阀的纵向移动的第一构型和用于将导管纵向保持在适当位置的第二构型之间变化。 阀可以包括卡盘以径向地夹持导管。 卡盘可以包括环形基座和相对的环形夹具，以及设置在基座和夹具之间的垫圈。 基座和夹具中的至少一个可以包括斜面，当基部和夹具被拉在一起时迫使垫圈径向向内。 该系统还包括在鞘内分层的一个或多个扩张器。 层状扩张器和护套通常比最内侧的扩张器向护套更软和更亲水。 扩张器可以通过嵌入在扩张器的体内的线来加强。 护套的远端可以通过邻近远端固定的环来加固。 护套可以在最内侧的扩张器中包括由柔性的中空的外部线和内部刚性针形成的套针针，该针可以延伸超过线以刺穿并被撤回以松弛线来推进扩张器。

公开(公告)号：US06858038B2

公开(公告)日：2005-02-22

申请号：US10177816

申请日：2002-06-21

Applicant: Richard R. Heuser

Inventor： Richard R. Heuser

IPC: A61F2/06

CPC classification number: A61F2/07 ,  A61F2/90 ,  A61F2/954 ,  A61F2/958 ,  A61F2002/061 ,  A61F2002/067 ,  A61F2002/072 ,  A61F2230/0054

Abstract: A stent system is provided for percutaneous insertion in an artery of a main stent which includes at least one peripheral aperture defined through the stent wall. The stent system also includes a peripheral stent configured to be inserted into the peripheral aperture of the main stent. The peripheral stent extends, when inserted in the peripheral aperture, generally perpendicular to the longitudinal axis of the main stent. The stent system may further include a guidewire, insertable through the peripheral aperture, for maneuvering the main stent into place in the artery. The guidewire may be tapered toward its distal end. The stent system may also include a dilation device for dilating the peripheral stent within the peripheral aperture. The stent system may further include a tube inserted through the peripheral aperture of the main stent.

Abstract translation: 提供支架系统用于经皮插入主支架的动脉中，其包括通过支架壁限定的至少一个外围孔。 支架系统还包括构造成插入主支架的外围孔中的外围支架。 当外周支架插入周边孔中时，该支架基​​本垂直于主支架的纵向轴线延伸。 支架系统还可以包括可插入通过周边孔的导丝，用于将主支架操纵到动脉中的适当位置。 导丝可以朝向其远端渐缩。 支架系统还可以包括用于在外围孔内扩张外围支架的扩张装置。 支架系统还可以包括插入通过主支架的外围孔的管。

公开(公告)号：US06464665B1

公开(公告)日：2002-10-15

申请号：US09609992

申请日：2000-07-05

Applicant: Richard R. Heuser

Inventor： Richard R. Heuser

IPC: A61M2900

CPC classification number: A61B17/12136 ,  A61B17/11 ,  A61B17/12045 ,  A61B17/12109 ,  A61B17/12172 ,  A61B2017/00252 ,  A61B2017/00557 ,  A61B2017/1139 ,  A61B2017/1205 ,  A61B2017/12127 ,  A61F2/91

Abstract: A catheter apparatus is provided including an arterial catheter and a venous catheter wherein the distal ends of the catheter are insertable in an artery and a adjacent vein, respectively to a position adjacent a site for creating a fistula. The venous catheter includes a radially expandable structure adjacent the distal end which can be selectively extended outwardly to expand a portion of the wall of the vein adjacent the venous fistula site towards contact with the wall of the artery adjacent the arterial fistula site. The radially expandable structure of the venous catheter may include one or more balloons which can be inflated or a wire basket, or the vein can be expanded by injecting a fluid through an injection port into an isolated portion of the vein. The apparatus further includes a tool for creating an opening through the wall of the artery adjacent the arterial fistula site and an opening through the outwardly extending portion of the wall of the vein adjacent the venous fistula site to extend outwardly the portion of the wall of the vein towards contact with the wall of the artery. The tool may include a needle coupled to the arterial catheter adjacent the distal end of the arterial catheter, the needle being selectively switchable between a first, inactive configuration wherein the needle can be guided through the artery without causing trauma to the artery wall and a second, active configuration wherein the needle is operative to create the opening in the artery wall. The fistula between the openings may be completed with the aid of a stent, and the proximal portion of the vein blocked with an embolization device.

Abstract translation: 提供了一种导管装置，其包括动脉导管和静脉导管，其中导管的远端分别可插入到动脉和相邻静脉中，以邻近于用于产生瘘的部位。 静脉导管包括邻近远端的可径向扩张的结构，其可以向外选择性地向外延伸，以将邻近静脉瘘位置的静脉壁的一部分扩张以与动脉瘘位点相邻的动脉壁接触。 静脉导管的可径向扩张的结构可以包括一个或多个可膨胀的球囊或线篮，或者通过将注射口注入流体进入静脉的隔离部分来扩张静脉。 该装置还包括用于通过邻近动脉瘘位置的动脉壁形成开口的工具，以及与静脉瘘位置相邻的静脉壁的向外延伸部分的开口，以向外延伸出部分壁 静脉与动脉壁接触。 该工具可以包括与动脉导管相邻的针头，该针头与动脉导管的远端相邻，该针可在第一非活动构型之间选择性切换，其中针可以被引导通过动脉而不会对动脉壁造成伤害， ，其中针可操作地在动脉壁中产生开口的主动构型。 开口之间的瘘可借助于支架完成，并且静脉的近端部分用栓塞装置阻塞。