公开(公告)号：US20170095268A1

公开(公告)日：2017-04-06

申请号：US15378548

申请日：2016-12-14

Applicant: Covidien LP

Inventor： Lucas Schneider ,  Benjamin Fruland

IPC: A61B17/3207

CPC classification number: A61B17/320758 ,  A61B17/32002 ,  A61B17/3207 ,  A61B17/320783 ,  A61B2017/00685 ,  A61B2017/320024 ,  A61B2017/320766 ,  A61B2017/320775

Abstract: A rotatable cutter for a tissue-removing catheter includes a central hub, flutes spaced apart from one another around the circumference of the central hub, and arcuate cutting members. Each cutting member includes an arcuate cutting edge extending along an arc length of the cutting member for cutting tissue as the cutter is rotated. A raised element of each cutting member has a leading cutting edge at a leading end of the distal cutting member for cutting tissue as the cutter is rotated. A clearance portion of each cutting member is recessed, relative to the longitudinal axis of the cutter, from the raised element and extends from the raised element to a trailing end of the cutting member to provide clearance for the leading cutting edge of an adjacent and opposing distal cutting member.

公开(公告)号：US20140128893A1

公开(公告)日：2014-05-08

申请号：US13671695

申请日：2012-11-08

Applicant: COVIDIEN LP

Inventor： Ethan A. Guggenheimer ,  Lucas Schneider ,  Thomas McPeak ,  Benjamin Fruland

IPC: A61B17/3207

CPC classification number: A61B17/320758 ,  A61B17/320783 ,  A61B2017/320004 ,  A61B2017/320775 ,  A61B2017/320791

Abstract: A tissue-removing catheter includes a cutting element. A radially innermost portion of the leading radial wall of a raised element of the cutting element may be spaced a radial distance from the longitudinal axis that is less than 66% of the radius of the annular cutting edge. The cutting element may be extendable through the window during operation such that as the cutting element is being rotated about its longitudinal axis, less than an entire radial portion of the leading radial wall passes through the window. A plurality of abrading members may be formed on at least the central portion of the inner surface of the cutting element to abrade hardened tissue as the cutting element is rotating about its longitudinal axis. A radially outermost portion of the leading radial edge of the raised element may be spaced apart radially from an inner surface of the cutting element.

Abstract translation: 组织去除导管包括切割元件。 切割元件的凸起元件的前部径向壁的径向最内部分可以与小于轴向切削刃半径的66％的纵向轴线间隔开。 在操作期间，切割元件可以通过窗口延伸，使得当切割元件围绕其纵向轴线旋转时，小于前导向壁的整个径向部分通过窗口。 可以在切割元件的内表面的至少中心部分上形成多个研磨部件，以在切割元件围绕其纵向轴线旋转时磨蚀硬化的组织。 凸起元件的前向径向边缘的径向最外部分可以与切割元件的内表面径向间隔开。

公开(公告)号：US10368902B2

公开(公告)日：2019-08-06

申请号：US15425095

申请日：2017-02-06

Applicant: Covidien LP

Inventor： Jason Kessler ,  Benjamin Fruland ,  Bryan Ladd ,  Cassandra Nigh

IPC: A61B17/3207 ,  A61B17/00

Abstract: A tissue-removing catheter includes a sensor configured to detect a parameter of the catheter during the cutting operation of the catheter when a tissue-removing element is in a tissue-removing position. A locking control circuit is in electrical communication with the sensor and a locking device. During an operational control function, the locking control circuit receives a signal from the sensor based at least in part on the parameter of the catheter detected during the cutting operation of the catheter. The locking control circuit determines whether the received signal is indicative of a tissue-removing element engaging a non-tissue obstruction. The locking control circuit configures the locking device in its locked configuration to inhibit movement of the tissue-removing element from its tissue-removing position to its neutral position if the received signal is indicative of the tissue-removing element engaging a non-tissue obstruction.

公开(公告)号：US09549718B2

公开(公告)日：2017-01-24

申请号：US14101920

申请日：2013-12-10

Applicant: Covidien LP

Inventor： Lucas Schneider ,  Benjamin Fruland ,  Bryan Ladd

IPC: A61B17/3207 ,  A61B17/00

CPC classification number: A61B17/3207 ,  A61B17/00234 ,  A61B17/320758 ,  A61B17/320783 ,  A61B2017/00292 ,  A61B2017/00318 ,  A61B2017/320741 ,  A61B2017/320775 ,  A61B2017/320791

Abstract: A catheter for removing tissue from a body lumen includes a rotatable cutter. The cutter includes an annular cutting tip at the distal end portion of the cutter for removing tissue from the body lumen. An axial cavity is defined by an interior surface of the cutter and extends proximally from the annular cutting tip toward the proximal end portion of the cutter. An eccentric opening extends from the central cavity through the cutter to allow tissue removed from the body lumen by the annular cutting tip to pass proximally through the eccentric opening toward an interior passage of the catheter body. The offset opening is offset from the longitudinal axis of the cutter.

Abstract translation: 用于从体腔去除组织的导管包括可旋转切割器。 切割器包括在切割器的远端部分处的环形切割尖端，用于从体腔移除组织。 轴向空腔由切割器的内表面限定，并从环形切割尖端向切割器的近端部分向近端延伸。 偏心开口从中心腔延伸穿过切割器，以允许通过环形切割尖端从体腔移除的组织向近端穿过偏心开口朝向导管主体的内部通道。 偏移开口偏离切割器的纵向轴线。

公开(公告)号：US20170014146A1

公开(公告)日：2017-01-19

申请号：US15208081

申请日：2016-07-12

Applicant: Covidien LP

Inventor： Ethan Guggenheimer ,  Benjamin Fruland ,  Victoria Schuman ,  Virgil Koski

IPC: A61B17/32

CPC classification number: A61B17/320783 ,  A61B17/320758 ,  A61B2017/00526 ,  A61B2017/320791

Abstract: A tissue-removing catheter includes a tissue-removing element operably connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. The tissue-removing element is, in some embodiments, an integrally formed one-piece body. The tissue-removing element has a tissue-removing head that includes a plurality of shearing members spaced apart around the axis of rotation. Channels separate the plurality of shearing members and extend through the radially outer surface of the tissue-removing head. In some embodiments, the shearing members include respective wedge portions that hook and cleave tissue as the tissue-removing element rotates.

Abstract translation: 组织去除导管包括可操作地连接到驱动轴的组织移除元件，用于围绕切割方向的旋转轴线旋转组织去除元件。 在一些实施例中，组织去除元件是整体形成的一体式主体。 组织去除元件具有包括围绕旋转轴线间隔开的多个剪切构件的纸巾去除头。 通道分离多个剪切构件并延伸穿过组织去除头的径向外表面。 在一些实施例中，剪切构件包括当组织移除元件旋转时钩和切割组织的各自的楔形部分。

公开(公告)号：US20140171987A1

公开(公告)日：2014-06-19

申请号：US14102029

申请日：2013-12-10

Applicant: Covidien LP

Inventor： Lucas Schneider ,  Benjamin Fruland

IPC: A61B17/3207

CPC classification number: A61B17/320758 ,  A61B17/32002 ,  A61B17/3207 ,  A61B17/320783 ,  A61B2017/00685 ,  A61B2017/320024 ,  A61B2017/320766 ,  A61B2017/320775

Abstract: A rotatable cutter for a tissue-removing catheter includes a central hub, flutes spaced apart from one another around the circumference of the central hub, and arcuate cutting members. Each cutting member includes an arcuate cutting edge extending along an arc length of the cutting member for cutting tissue as the cutter is rotated. A raised element of each cutting member has a leading cutting edge at a leading end of the distal cutting member for cutting tissue as the cutter is rotated. A clearance portion of each cutting member is recessed, relative to the longitudinal axis of the cutter, from the raised element and extends from the raised element to a trailing end of the cutting member to provide clearance for the leading cutting edge of an adjacent and opposing distal cutting member.

Abstract translation: 用于组织去除导管的可旋转切割器包括中心毂，围绕中心毂的圆周彼此间隔开的凹槽和弓形切割构件。 每个切割构件包括沿着切割构件的圆弧长度延伸的弓形切割刃，用于在切割器旋转时切割组织。 每个切割构件的凸起元件具有在远端切割构件的前端处的前切割刃，用于在切割器旋转时切割组织。 每个切割构件的间隙部分相对于切割器的纵向轴线从凸起元件凹陷并且从凸起元件延伸到切割构件的后端，以为相邻和相对的切割构件的前切割刃提供间隙 远端切割件。

公开(公告)号：US10932811B2

公开(公告)日：2021-03-02

申请号：US15816744

申请日：2017-11-17

Applicant: Covidien LP

Inventor： Ethan A. Guggenheimer ,  Lucas Schneider ,  Thomas McPeak ,  Benjamin Fruland

IPC: A61B17/3207 ,  A61B17/32

Abstract: A tissue-removing catheter includes a cutting element. A radially innermost portion of the leading radial wall of a raised element of the cutting element may be spaced a radial distance from the longitudinal axis that is less than 66% of the radius of the annular cutting edge. The cutting element may be extendable through the window during operation such that as the cutting element is being rotated about its longitudinal axis, less than an entire radial portion of the leading radial wall passes through the window. A plurality of abrading members may be formed on at least the central portion of the inner surface of the cutting element to abrade hardened tissue as the cutting element is rotating about its longitudinal axis. A radially outermost portion of the leading radial edge of the raised element may be spaced apart radially from an inner surface of the cutting element.

公开(公告)号：US10603068B2

公开(公告)日：2020-03-31

申请号：US15378379

申请日：2016-12-14

Applicant: Covidien LP

Inventor： Lucas Schneider ,  Benjamin Fruland ,  Bryan Ladd

IPC: A61B17/3207 ,  A61B17/00

Abstract: A catheter for removing tissue from a body lumen include's a rotatable cutter. The cutter includes an annular cutting tip at the distal end portion of the cutter for removing tissue from the body lumen. An axial cavity is defined by an interior surface of the cutter and extends proximally from the annular cutting tip toward the proximal end portion of the cutter. An eccentric opening extends from the central cavity through the cutter to allow tissue removed from the body lumen by the annular cutting tip to pass proximally through the eccentric opening toward an interior passage of the catheter body. The offset opening is offset from the longitudinal axis of the cutter.

公开(公告)号：US20170196589A1

公开(公告)日：2017-07-13

申请号：US15469756

申请日：2017-03-27

Applicant: Covidien LP

Inventor： Benjamin Fruland ,  John Pedersen ,  Scott Petersen ,  Robert Van Pelt ,  Thomas McPeak

IPC: A61B17/3207

Abstract: A deployment mechanism of a tissue-removing catheter includes a socket member received in a catheter body that is capable of moving longitudinally therein, and a ball member extending distally from the distal end portion of the cutting element and operatively connected to the socket member. The ball member is constrained axially relative to the socket member and is capable of pivoting relative to the socket member for allowing pivoting of the cutting element relative to the socket when the cutting element is moved from a retracted position to a cutting position.

公开(公告)号：US20170086873A1

公开(公告)日：2017-03-30

申请号：US15378379

申请日：2016-12-14

Applicant: Covidien LP

Inventor： Lucas Schneider ,  Benjamin Fruland ,  Bryan Ladd

IPC: A61B17/3207 ,  A61B17/00

CPC classification number: A61B17/3207 ,  A61B17/00234 ,  A61B17/320758 ,  A61B17/320783 ,  A61B2017/00292 ,  A61B2017/00318 ,  A61B2017/320741 ,  A61B2017/320775 ,  A61B2017/320791

Abstract: A catheter for removing tissue from a body lumen include's a rotatable cutter. The cutter includes an annular cutting tip at the distal end portion of the cutter for removing tissue from the body lumen. An axial cavity is defined by an interior surface of the cutter and extends proximally from the annular cutting tip toward the proximal end portion of the cutter. An eccentric opening extends from the central cavity through the cutter to allow tissue removed from the body lumen by the annular cutting tip to pass proximally through the eccentric opening toward an interior passage of the catheter body. The offset opening is offset from the longitudinal axis of the cutter.