公开(公告)号：US06695813B1

公开(公告)日：2004-02-24

申请号：US09476159

申请日：1999-12-30

申请人： William J. Boyle ,  David H. Burkett ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  Arkady Kokish ,  Kent C. B. Stalker ,  Chicheng Wang ,  John D. Whitfield

发明人： William J. Boyle ,  David H. Burkett ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  Arkady Kokish ,  Kent C. B. Stalker ,  Chicheng Wang ,  John D. Whitfield

IPC分类号： A61M2900

CPC分类号： A61F2/013 ,  A61F2002/011 ,  A61F2002/015 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/005 ,  A61F2230/0067 ,  A61F2230/008

摘要： An embolic protection device includes a filtering assembly having a self-expanding strut assembly and a filter element. The filtering assembly can be attached to a guidewire and deployed within the patient's vasculature into an area of treatment. A restraining sheath maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Interventional devices can be delivered over the guidewire and any embolic debris created and released into the blood stream will enter the filtering assembly. The filtering assembly can be rotatably mounted on the guide wire and may include a dampening element which helps to prevent some shock force that may be transmitted along the guide to the deployed filtering assembly.

摘要翻译： 栓塞保护装置包括具有自扩张支柱组件和过滤元件的过滤组件。 过滤组件可以附接到导丝并且部署在患者的脉管系统内进入治疗区域。 限制护套将过滤组件保持在其折叠位置，直到其准备好被医生部署为止。 介入装置可以通过导线传送，并且产生并释放到血流中的任何栓塞碎片将进入过滤组件。 过滤组件可以可旋转地安装在导丝上，并且可以包括阻尼元件，该阻尼元件有助于防止可能沿着引导件传递到部署的过滤组件的一些冲击力。

公开(公告)号：US08845583B2

公开(公告)日：2014-09-30

申请号：US11651667

申请日：2007-01-10

申请人： William J. Boyle ,  David H. Burkett ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  Arkady Kokish ,  Kent C. B. Stalker ,  Chicheng Wang ,  John D. Whitfield

发明人： William J. Boyle ,  David H. Burkett ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  Arkady Kokish ,  Kent C. B. Stalker ,  Chicheng Wang ,  John D. Whitfield

IPC分类号： A61M29/00 ,  A61F2/01

CPC分类号： A61F2/013 ,  A61F2002/011 ,  A61F2002/015 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/005 ,  A61F2230/0067 ,  A61F2230/008

摘要： An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guidewire and is deployed within the patient's vasculature as the guidewire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guidewire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.

摘要翻译： 一种用于血管中的栓塞保护装置，当在狭窄或闭塞区域进行介入手术以捕获可能在手术期间产生和释放到血流中的任何栓塞物质。 该装置包括具有自扩张支柱组件和附接到其上的过滤元件的过滤组件。 在一个实施例中，过滤组件附接到导丝的远端，并且当导线被操纵进入治疗区域时，其部署在患者的脉管系统内。 以同轴布置放置在过滤组件上方的限制护套将过滤组件保持在其收缩位置，直到其准备好由医师部署。 此后，护套可缩回以露出过滤组件，然后过滤组件将在患者的脉管系统内自我扩张。 介入装置可以在导丝上传送，并且在介入手术期间产生的并释放到血流中的任何栓塞碎片将进入过滤组件并被捕获在其中。 其他实施例包括附接到外部管状构件和内部轴构件的过滤构件，其向组件的远端施加轴向力，以根据需要来扩展或收缩支柱。

公开(公告)号：US06702834B1

公开(公告)日：2004-03-09

申请号：US09727102

申请日：2000-11-28

申请人： John F. Boylan ,  William J. Boyle ,  Andy E. Denison ,  Debashis Dutta ,  Benjamin C. Huter ,  Scott J. Huter ,  Paul F. Muller ,  Samir Patel ,  Christopher J. Tarapata ,  Chicheng Wang ,  Francisco Sanchez ,  Kent C. B. Stalker

发明人： John F. Boylan ,  William J. Boyle ,  Andy E. Denison ,  Debashis Dutta ,  Benjamin C. Huter ,  Scott J. Huter ,  Paul F. Muller ,  Samir Patel ,  Christopher J. Tarapata ,  Chicheng Wang ,  Francisco Sanchez ,  Kent C. B. Stalker

IPC分类号： A61M2900

CPC分类号： A61F2/013 ,  A61F2002/015 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/005 ,  A61F2230/0067 ,  A61F2230/008

摘要： An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guide wire and is deployed within the patient's vasculature as the guide wire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guide wire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.

摘要翻译： 一种用于血管中的栓塞保护装置，当在狭窄或闭塞区域进行介入手术以捕获可能在手术期间产生和释放到血流中的任何栓塞物质。 该装置包括具有自扩张支柱组件和附接到其上的过滤元件的过滤组件。 在一个实施例中，过滤组件附接到导丝的远端，并且当导丝被操纵进入治疗区域时，其被布置在患者的脉管系统内。 以同轴布置放置在过滤组件上方的限制护套将过滤组件保持在其收缩位置，直到其准备好由医师部署。 此后，护套可缩回以露出过滤组件，然后过滤组件将在患者的脉管系统内自我扩张。 介入装置可以在导丝上传送，并且在介入手术期间产生的并释放到血流中的任何栓塞碎片将进入过滤组件并被捕获在其中。 其他实施例包括附接到外部管状构件和内部轴构件的过滤构件，其向组件的远端施加轴向力，以根据需要来扩展或收缩支柱。

公开(公告)号：US07217255B2

公开(公告)日：2007-05-15

申请号：US10386071

申请日：2003-03-10

申请人： William J. Boyle ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  Richard S. Stack ,  Kent C. B. Stalker ,  Christopher Tarapata ,  John D. Whitfield

发明人： William J. Boyle ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  Richard S. Stack ,  Kent C. B. Stalker ,  Christopher Tarapata ,  John D. Whitfield

IPC分类号： A61M29/00

CPC分类号： A61F2/013 ,  A61F2002/011 ,  A61F2002/015 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/0067 ,  A61F2230/008

摘要： An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guide wire and is deployed within the patient's vasculature as the guide wire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guide wire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.

摘要翻译： 一种用于血管中的栓塞保护装置，当在狭窄或闭塞区域进行介入手术以捕获可能在手术期间产生和释放到血流中的任何栓塞物质。 该装置包括具有自扩张支柱组件和附接到其上的过滤元件的过滤组件。 在一个实施例中，过滤组件附接到导丝的远端，并且当导丝被操纵进入治疗区域时，其被布置在患者的脉管系统内。 以同轴布置放置在过滤组件上方的限制护套将过滤组件保持在其收缩位置，直到其准备好由医师部署。 此后，护套可缩回以露出过滤组件，然后过滤组件将在患者的脉管系统内自我扩张。 介入装置可以在导丝上传送，并且在介入手术期间产生的并释放到血流中的任何栓塞碎片将进入过滤组件并被捕获在其中。 其他实施例包括附接到外部管状构件和内部轴构件的过滤构件，其向组件的远端施加轴向力，以根据需要来扩展或收缩支柱。

公开(公告)号：US06540722B1

公开(公告)日：2003-04-01

申请号：US09490319

申请日：2000-01-24

申请人： William J. Boyle ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  Richard S. Stack ,  Kent C. B. Stalker ,  Christopher Tarapata ,  John D. Whitfield

发明人： William J. Boyle ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  Richard S. Stack ,  Kent C. B. Stalker ,  Christopher Tarapata ,  John D. Whitfield

IPC分类号： A61M2900

CPC分类号： A61F2/013 ,  A61F2002/011 ,  A61F2002/015 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/0067 ,  A61F2230/008

摘要： An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guide wire and is deployed within the patient's vasculature as the guide wire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guide wire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.

摘要翻译： 一种用于血管中的栓塞保护装置，当在狭窄或闭塞区域进行介入手术以捕获可能在手术期间产生和释放到血流中的任何栓塞物质。 该装置包括具有自扩张支柱组件和附接到其上的过滤元件的过滤组件。 在一个实施例中，过滤组件附接到导丝的远端，并且当导丝被操纵进入治疗区域时，其被布置在患者的脉管系统内。 以同轴布置放置在过滤组件上方的限制护套将过滤组件保持在其收缩位置，直到其准备好由医师部署。 此后，护套可缩回以露出过滤组件，然后过滤组件将在患者的脉管系统内自我扩张。 介入装置可以在导丝上传送，并且在介入手术期间产生的并释放到血流中的任何栓塞碎片将进入过滤组件并被捕获在其中。 其他实施例包括附接到外部管状构件和内部轴构件的过滤构件，其向组件的远端施加轴向力，以根据需要来扩展或收缩支柱。

公开(公告)号：US07678128B2

公开(公告)日：2010-03-16

申请号：US09897295

申请日：2001-06-29

申请人： William J. Boyle ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  John E. Papp ,  Charles R. Peterson ,  Kent C. B. Stalker

发明人： William J. Boyle ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  John E. Papp ,  Charles R. Peterson ,  Kent C. B. Stalker

IPC分类号： A61M29/00

CPC分类号： A61F2/013 ,  A61F2/95 ,  A61F2002/011 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/008

摘要： A deployment control system provides controlled deployment of an embolic protection device which may include a guide wire, an expandable filter attached to the guide wire near its distal end, and a restraining sheath that maintains the expanded filter in a collapsed position. The deployment control system includes a torque control device which allows the physician to torque the guide wire into the patient's anatomy and a mechanism for preventing the guide wire from buckling as the restraining sheath is being retracted to deploy the expandable filter. A recovery control system for recovering the embolic protection device includes an inner catheter which extends within a lumen of an outer recovery sheath in a coaxial arrangement. A distal portion of the inner catheter extends beyond another recovery sheath during advancement of the recovery system into the vasculature. The recovery sheath can be advanced over the inner catheter to collapse the expandable filter. The proximal ends of the inner catheter and recovery sheath include handle portions having snap mechanisms which hold the components together as the recovery system is being advanced into the patient's vasculature.

摘要翻译： 部署控制系统提供栓塞保护装置的可控部署，该栓塞保护装置可以包括引导线，在其远端附近附接到导丝的可扩张过滤器，以及将扩张过滤器保持在折叠位置的限制护套。 部署控制系统包括扭矩控制装置，该扭矩控制装置允许医师将导丝扭转到患者的解剖结构中，以及用于防止导线在收缩护套以展开可膨胀过滤器时弯曲的机构。 用于回收栓塞保护装置的恢复控制系统包括在同轴布置中在外部恢复护套的内腔内延伸的内导管。 在将回收系统推进脉管系统期间，内导管的远端部分延伸超过另一恢复护套。 恢复护套可以在内导管上推进以使可膨胀过滤器折叠。 内导管和恢复护套的近端包括手柄部分，其具有卡扣机构，当回收系统进入患者的脉管系统时，该部件将部件保持在一起。

公开(公告)号：US08672991B2

公开(公告)日：2014-03-18

申请号：US12724140

申请日：2010-03-15

申请人： William J. Boyle ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  John E. Papp ,  Charles R. Peterson ,  Kent C. B. Stalker

发明人： William J. Boyle ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  John E. Papp ,  Charles R. Peterson ,  Kent C. B. Stalker

IPC分类号： A61F2/06

CPC分类号： A61F2/013 ,  A61F2/95 ,  A61F2002/011 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/008

摘要： A deployment control system provides controlled deployment of an embolic protection device which may include a guide wire, an expandable filter attached to the guide wire near its distal end, and a restraining sheath that maintains the expanded filter in a collapsed position. The deployment control system includes a torque control device which allows the physician to torque the guide wire into the patient's anatomy and a mechanism for preventing the guide wire from buckling as the restraining sheath is being retracted to deploy the expandable filter. A recovery control system for recovering the embolic protection device includes an inner catheter which extends within a lumen of an outer recovery sheath in a coaxial arrangement. A distal portion of the inner catheter extends beyond another recovery sheath during advancement of the recovery system into the vasculature. The recovery sheath can be advanced over the inner catheter to collapse the expandable filter. The proximal ends of the inner catheter and recovery sheath include handle portions having snap mechanisms which hold the components together as the recovery system is being advanced into the patient's vasculature.

摘要翻译： 部署控制系统提供栓塞保护装置的可控部署，该栓塞保护装置可以包括引导线，在其远端附近附接到导丝的可扩张过滤器，以及将扩张过滤器保持在折叠位置的限制护套。 部署控制系统包括扭矩控制装置，该扭矩控制装置允许医师将导丝扭转到患者的解剖结构中，以及用于防止导线在收缩护套以展开可膨胀过滤器时弯曲的机构。 用于回收栓塞保护装置的恢复控制系统包括在同轴布置中在外部恢复护套的内腔内延伸的内导管。 在将回收系统推进脉管系统期间，内导管的远端部分延伸超过另一恢复护套。 恢复护套可以在内导管上推进以使可膨胀过滤器折叠。 内导管和恢复护套的近端包括手柄部分，其具有卡扣机构，当回收系统进入患者的脉管系统时，该部件将部件保持在一起。

公开(公告)号：US07252675B2

公开(公告)日：2007-08-07

申请号：US10260710

申请日：2002-09-30

申请人： Andy E. Denison ,  William J. Harrison ,  Benjamin C. Huter ,  Scott J. Huter ,  John E. Papp ,  Steven T. Saville ,  Kent C. B. Stalker

发明人： Andy E. Denison ,  William J. Harrison ,  Benjamin C. Huter ,  Scott J. Huter ,  John E. Papp ,  Steven T. Saville ,  Kent C. B. Stalker

IPC分类号： A61M29/00

CPC分类号： A61F2/013 ,  A61F2002/015 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/008

摘要： An expandable frame for an embolic filtering device used to capture embolic debris in a body vessel includes a first half frame having a first control arm connected to a second control arm by a partial loop and a second half frame having a first control arm connected to a second control arm by a partial loop. The partial loops cooperatively form a composite loop for attachment of a filtering element which will expand in the body vessel to capture embolic debris entrained in the fluid of the vessel. The lengths and positioning of the first and second control arms of each half frame can be varied to create an expandable frame which conforms to the size and shape of the body vessel in which the filtering device is deployed. Additionally, the radius of the partial loops, along with the length of the arc of the partial loops, can be varied on each of the frames to create a composite filtering assembly that can easily adapt to the size and shape of the body vessel. Additionally, the control arms of the half frames can be disposed either proximally or distally of the composite loop to create a distinct filtering structure.

摘要翻译： 用于捕获身体血管中的栓塞碎片的栓塞过滤装置的可膨胀框架包括：第一半框架，具有通过部分回路连接到第二控制臂的第一控制臂，以及具有连接到第二控制臂的第二控制臂的第二半框架 第二控制臂通过部分回路。 部分回路协同地形成用于附接过滤元件的复合回路，该过滤元件将在体内容器中膨胀以捕获携带在血管流体中的栓塞碎片。 可以改变每个半框架的第一和第二控制臂的长度和定位，以便产生符合过滤装置展开的身体容器的尺寸和形状的可扩张框架。 此外，部分回路的半径以及部分回路的圆弧的长度可以在每个框架上变化以产生可以容易地适应身体血管的尺寸和形状的复合过滤组件。 此外，半框架的控制臂可以在复合环路的近侧或远端设置，以产生不同的过滤结构。

公开(公告)号：US07976560B2

公开(公告)日：2011-07-12

申请号：US11654426

申请日：2007-01-17

申请人： Andy E. Denison ,  William J. Harrison ,  Benjamin C. Huter ,  Scott J. Huter ,  John E. Papp ,  Steven T. Saville ,  Kent C. B. Stalker

发明人： Andy E. Denison ,  William J. Harrison ,  Benjamin C. Huter ,  Scott J. Huter ,  John E. Papp ,  Steven T. Saville ,  Kent C. B. Stalker

IPC分类号： A61M29/00

CPC分类号： A61F2/013 ,  A61F2002/015 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/008

摘要： An expandable frame for an embolic filtering device used to capture embolic debris in a body vessel includes a first half frame having a first control arm connected to a second control arm by a partial loop and a second half frame having a first control arm connected to a second control arm by a partial loop. The partial loops cooperatively form a composite loop for attachment of a filtering element which will expand in the body vessel to capture embolic debris entrained in the fluid of the vessel. The lengths and positioning of the first and second control arms of each half frame can be varied to create an expandable frame which conforms to the size and shape of the body vessel in which the filtering device is deployed. Additionally, the radius of the partial loops, along with the length of the arc of the partial loops, can be varied on each of the frames to create a composite filtering assembly that can easily adapt to the size and shape of the body vessel. Additionally, the control arms of the half frames can be disposed either proximally or distally of the composite loop to create a distinct filtering structure.

摘要翻译： 用于捕获身体血管中的栓塞碎片的栓塞过滤装置的可膨胀框架包括：第一半框架，具有通过部分回路连接到第二控制臂的第一控制臂，以及具有连接到第二控制臂的第二控制臂的第二半框架 第二控制臂通过部分回路。 部分回路协同地形成用于附接过滤元件的复合回路，该过滤元件将在体内容器中膨胀以捕获携带在血管流体中的栓塞碎片。 可以改变每个半框架的第一和第二控制臂的长度和定位，以便产生符合过滤装置展开的身体容器的尺寸和形状的可扩张框架。 此外，部分回路的半径以及部分回路的圆弧的长度可以在每个框架上变化以产生可以容易地适应身体血管的尺寸和形状的复合过滤组件。 此外，半框架的控制臂可以在复合环路的近侧或远端设置，以产生不同的过滤结构。

公开(公告)号：US20100174355A1

公开(公告)日：2010-07-08

申请号：US12724140

申请日：2010-03-15

申请人： William J. Boyle ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  John E. Papp ,  Charles R. Peterson ,  Kent C.B. Stalker

发明人： William J. Boyle ,  Andy E. Denison ,  Benjamin C. Huter ,  Scott J. Huter ,  John E. Papp ,  Charles R. Peterson ,  Kent C.B. Stalker

IPC分类号： A61F2/84

CPC分类号： A61F2/013 ,  A61F2/95 ,  A61F2002/011 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/008

摘要： A deployment control system provides controlled deployment of an embolic protection device which may include a guide wire, an expandable filter attached to the guide wire near its distal end, and a restraining sheath that maintains the expanded filter in a collapsed position. The deployment control system includes a torque control device which allows the physician to torque the guide wire into the patient's anatomy and a mechanism for preventing the guide wire from buckling as the restraining sheath is being retracted to deploy the expandable filter. A recovery control system for recovering the embolic protection device includes an inner catheter which extends within a lumen of an outer recovery sheath in a coaxial arrangement. A distal portion of the inner catheter extends beyond another recovery sheath during advancement of the recovery system into the vasculature. The recovery sheath can be advanced over the inner catheter to collapse the expandable filter. The proximal ends of the inner catheter and recovery sheath include handle portions having snap mechanisms which hold the components together as the recovery system is being advanced into the patient's vasculature.

摘要翻译： 部署控制系统提供栓塞保护装置的可控部署，该栓塞保护装置可以包括引导线，在其远端附近附接到导丝的可扩张过滤器，以及将扩张过滤器保持在折叠位置的限制护套。 部署控制系统包括扭矩控制装置，该扭矩控制装置允许医师将导丝扭转到患者的解剖结构中，以及用于防止导线在收缩护套以展开可膨胀过滤器时弯曲的机构。 用于回收栓塞保护装置的恢复控制系统包括在同轴布置中在外部恢复护套的内腔内延伸的内导管。 在将回收系统推进脉管系统期间，内导管的远端部分延伸超过另一恢复护套。 恢复护套可以在内导管上推进以使可膨胀过滤器折叠。 内导管和恢复护套的近端包括手柄部分，其具有卡扣机构，当回收系统进入患者的脉管系统时，该部件将部件保持在一起。