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公开(公告)号：US06638233B2
公开(公告)日：2003-10-28
申请号：US09377884
申请日：1999-08-19
申请人： Tim Corvi , Stephen Boyd , Brett Follmer , John G. Stine , David W. Snow , Darren G. Doud
发明人： Tim Corvi , Stephen Boyd , Brett Follmer , John G. Stine , David W. Snow , Darren G. Doud
IPC分类号： A61B1000
CPC分类号： A61B10/0275 , A61B10/04
摘要： Catheters, kits, and methods are provided for removing material from a body lumen. The catheters and methods may be used in a variety of body lumens, including but not limited to coronary and other arteries. In general, the catheter has a cutting element that cuts material while the material is engaged by a material capture device on the catheter body. Preferably, the material capture device tensions the material during cutting, which reduces the amount of cutting force required. The material capture device typically follows a path that draws material into the catheter body. Preferably, but not necessarily, the material capture device may be arranged on the catheter body to advance along a path outwardly from the catheter body into the material and then inwardly towards the catheter body to tension the material. The cutting element on the catheter body moves between a first position and a second position to cut the material while in tension.
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公开(公告)号：US08784333B2
公开(公告)日：2014-07-22
申请号：US12357037
申请日：2009-01-21
申请人： Tim Corvi , Stephen Boyd , Brett Follmer , John G. Stine , David W. Snow , Darren G. Doud
发明人： Tim Corvi , Stephen Boyd , Brett Follmer , John G. Stine , David W. Snow , Darren G. Doud
CPC分类号： A61B10/0275 , A61B10/04
摘要： Catheters, kits, and methods are provided for removing material from a body lumen. The catheters and methods may be used in a variety of body lumens, including but not limited to coronary and other arteries. In general, the catheter has a cutting element that cuts material while the material is engaged by a material capture device on the catheter body. Preferably, the material capture device tensions the material during cutting, which reduces the amount of cutting force required. The material capture device typically follows a path that draws material into the catheter body. Preferably, but not necessarily, the material capture device may be arranged on the catheter body to advance along a path outwardly from the catheter body into the material and then inwardly towards the catheter body to tension the material. The cutting element on the catheter body moves between a first position and a second position to cut the material while in tension.
摘要翻译： 提供导管，套件和方法用于从体腔去除材料。 导管和方法可以用于各种体腔，包括但不限于冠状动脉和其他动脉。 通常，导管具有切割材料，该切割元件在材料通过导管主体上的材料捕获装置接合时切割材料。 优选地，材料捕获装置在切割期间张紧材料，这减少了所需的切割力的量。 材料捕获装置通常遵循将材料拉入导管主体的路径。 优选但不是必需的，材料捕获装置可以布置在导管主体上，以沿着从导管主体向外的路径前进到材料中，然后向内朝向导管主体拉伸材料。 导管主体上的切割元件在第一位置和第二位置之间移动，以在张力下切割材料。
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公开(公告)号：US20090187203A1
公开(公告)日：2009-07-23
申请号：US12357037
申请日：2009-01-21
申请人： Tim Corvi , Stephen Boyd , Brett Follmer , John G. Stine , David W. Snow , Darren G. Doud
发明人： Tim Corvi , Stephen Boyd , Brett Follmer , John G. Stine , David W. Snow , Darren G. Doud
IPC分类号： A61B17/22
CPC分类号： A61B10/0275 , A61B10/04
摘要： Catheters, kits, and methods are provided for removing material from a body lumen. The catheters and methods may be used in a variety of body lumens, including but not limited to coronary and other arteries. In general, the catheter has a cutting element that cuts material while the material is engaged by a material capture device on the catheter body. Preferably, the material capture device tensions the material during cutting, which reduces the amount of cutting force required. The material capture device typically follows a path that draws material into the catheter body. Preferably, but not necessarily, the material capture device may be arranged on the catheter body to advance along a path outwardly from the catheter body into the material and then inwardly towards the catheter body to tension the material. The cutting element on the catheter body moves between a first position and a second position to cut the material while in tension.
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公开(公告)号：US6027514A
公开(公告)日：2000-02-22
申请号：US982231
申请日：1997-12-17
IPC分类号： A61B17/22
CPC分类号： A61B17/320783 , A61B2017/22052
摘要： An atherectomy catheter includes a catheter body having a blade assembly at its distal end. The blade assembly includes first blade and a second blade, where each blade has an opposed cutting edge. At least one of the cutting edges will have a penetrating point formed thereon. Preferably, both edges will have at least one aligned cutting point, more preferably at least two or more aligned cutting points. When the blades are actuated to shear tissue therebetween, the cutting points act to penetrate and capture the material to be sheared.
摘要翻译： 粥样斑块切除术导管包括在其远端具有刀片组件的导管主体。 叶片组件包括第一叶片和第二叶片，其中每个叶片具有相对的切割边缘。 至少一个切削刃将具有形成在其上的穿透点。 优选地，两个边缘将具有至少一个对准的切割点，更优选地至少两个或更多个对准的切割点。 当叶片被致动以在其间剪切组织时，切割点用于穿透并捕获待剪切的材料。
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公开(公告)号：US5352197A
公开(公告)日：1994-10-04
申请号：US31388
申请日：1993-03-12
申请人： Dan J. Hammersmark , John Lennox-Gentle , Kenneth P. Grace , Boyce D. Richardson , John G. Stine , Kevin D. Taylor , Matthew S. Solar
发明人： Dan J. Hammersmark , John Lennox-Gentle , Kenneth P. Grace , Boyce D. Richardson , John G. Stine , Kevin D. Taylor , Matthew S. Solar
CPC分类号： A61M25/01 , A61M25/0133 , A61M25/0136 , A61B2090/031 , A61M2025/0183
摘要： The present invention is a turn limiter for a catheter with a twistable tip. The catheter having a flexible wall for use in complex twisting anatomy contains a torque wire or a torquable guide wire lumen. The torque wire or torquable guide wire lumen extends through the length of the catheter and is attached to the catheter at or near the distal end thereof. The proximal end of the torque wire protrudes from the proximal end of the catheter and is attached to a turn limiter. Rotation of the turn limiter imparts a torque to the torque wire or torquable guide wire lumen. The turn limiter allows limited rotation of the proximal end of the torque wire or torquable guide wire lumen without axial dislocation. The turn limiter may have a feature for indicating the amount of torque applied to the torque element. The turn limiter may also have a friction device for resisting rotational forces urging a rotatable handle in the turn limiter to return to an original position when the handle is rotated and released by an operator.
摘要翻译： 本发明是一种具有可扭转尖端的导管的转动限制器。 具有用于复合扭转解剖结构的柔性壁的导管包含扭矩线或可扭转的导丝管腔。 扭矩线或扭转导丝腔延伸穿过导管的长度并且在其远端处或其远端处附接到导管。 扭矩线的近端从导管的近端突出并附接到转动限制器。 转动限制器的旋转赋予转矩线或扭力导丝管腔的转矩。 转动限制器允许扭矩线或扭转导丝管腔的近端受限地旋转而没有轴向错位。 转动限制器可以具有用于指示施加到扭矩元件的扭矩的量的特征。 转动限制器还可以具有用于抵抗旋转力的摩擦装置，当手柄被操作者旋转和释放时，推动旋转限制器中的可旋转手柄返回到原始位置。
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