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    • 2. 发明授权
    • Balloon catheter
    • 气球导管
    • US09168080B2
    • 2015-10-27
    • US13360092
    • 2012-01-27
    • Dan WittenbergerClaudia LueckgeRéal Ste-Marie
    • Dan WittenbergerClaudia LueckgeRéal Ste-Marie
    • A61B18/02A61B18/14A61B18/00
    • A61B18/02A61B18/1492A61B2018/0016A61B2018/0022A61B2018/0212A61B2018/0262
    • A medical device including a catheter body defining a proximal portion and a distal portion. An expandable element is included defining a proximal end and a distal end, the proximal end being coupled to the distal portion of the catheter body. A tip element coupled to the distal end of the expandable element is included, the tip element including a shaft slideably receivable within a portion of the catheter body. A tensioning element coupled to the shaft and disposed within the expandable element is included, the tensioning element being engageable with the distal end of the catheter body and biasing the expandable element toward a pre-determined longitudinal position. An electrode array defining a substantially closed loop affixed to and extending from the tip element is also included.
    • 一种医疗装置,包括限定近端部分和远端部分的导管主体。 包括可扩张元件,其限定近端和远端,近端联接到导管主体的远端部分。 包括联接到可扩张元件的远端的尖端元件,末端元件包括可滑动地容纳在导管主体的一部分内的轴。 包括联接到轴并且设置在可扩张元件内的张紧元件,张紧元件可与导管主体的远端接合并且朝向预定的纵向位置偏压可扩张元件。 还包括限定固定到尖端元件并从尖端元件延伸的基本上闭合回路的电极阵列。
    • 3. 发明授权
    • Partially compliant balloon device
    • 部分兼容球囊装置
    • US09089314B2
    • 2015-07-28
    • US12694938
    • 2010-01-27
    • Dan Wittenberger
    • Dan Wittenberger
    • A61B18/02A61B18/00
    • A61B18/02A61B2018/0022A61B2018/00255A61B2018/00375A61B2018/0212
    • A medical device is provided, having an elongate body defining a distal portion and a proximal portion; a first expandable member disposed on the distal portion of the elongate body and defining a cooling chamber therein, the first expandable member having a first rigidity; a second expandable member disposed around the first expandable member to define an interstitial region therebetween, where the second expandable member has a second rigidity less than the first rigidity; a gel disposed within the interstitial region; a coolant flow path in fluid communication with the cooling chamber; and a cryogenic coolant source in fluid communication with the coolant flow path.
    • 提供了一种医疗装置,其具有限定远侧部分和近端部分的细长主体; 第一可膨胀构件,其设置在细长主体的远端部分上并且在其中限定冷却室,第一可膨胀构件具有第一刚性; 第二可膨胀构件,其围绕所述第一可膨胀构件设置以在其间限定间隙区域,其中所述第二可膨胀构件具有小于所述第一刚性的第二刚性; 布置在间隙区内的凝胶; 与冷却室流体连通的冷却剂流动路径; 以及与冷却剂流动路径流体连通的低温冷却剂源。
    • 4. 发明授权
    • Shape modification system for a cooling chamber of a medical device
    • 用于医疗器械冷却室的形状修改系统
    • US09039712B2
    • 2015-05-26
    • US11476408
    • 2006-06-28
    • Marwan AbboudDan Wittenberger
    • Marwan AbboudDan Wittenberger
    • A61F11/00A61M25/10
    • A61M25/10181A61B2018/0212A61M2025/1068
    • The present invention provides a medical device having an catheter body defining proximal and distal portions, and a guidewire lumen at least partially disposed within and movable within the catheter body. The medical device may include an expandable element defining a proximal end and a distal end, wherein the proximal end is coupled to the distal portion of the catheter body and the distal end is coupled to the guidewire lumen. In addition, an actuator element may be coupled to the guidewire lumen for longitudinal movement thereof, and a tensioning element may further be coupled to the guidewire lumen to bias the guidewire lumen and/or the expandable element towards a particular geometric configuration.
    • 本发明提供一种医疗装置,其具有限定近端部分和远端部分的导管主体,以及至少部分地设置在导管主体内并在导管主体内可移动的导丝管腔。 医疗装置可以包括限定近端和远端的可扩张元件,其中近端联接到导管主体的远端部分,并且远端联接到导丝管腔。 此外,致动器元件可以联接到导丝管腔以用于其纵向运动,并且张紧元件可以进一步联接到导丝管腔,以将导丝管腔和/或可扩张元件朝向特定的几何构型偏置。
    • 10. 发明授权
    • Catheter with cryogenic and electrical heating ablation
    • 导管用低温和电加热消融
    • US07896870B2
    • 2011-03-01
    • US11768259
    • 2007-09-10
    • Steven G. ArlessFredric L. MilderMarwan AbboudDan WittenbergerSean Carroll
    • Steven G. ArlessFredric L. MilderMarwan AbboudDan WittenbergerSean Carroll
    • A61B18/02A61B18/12A61B18/18
    • A61B18/02A61B18/1492A61B18/18A61B2017/00243A61B2018/0212A61B2018/0268
    • A catheter includes a cryoablation tip with an ablation assembly for heating tissue. The cryoablation tip may be implemented with a cooling chamber and have an RF electrode at its distal end. The electrode may be operated to warm cryogenically-cooled tissue, or the coolant may be controlled in combination with an RF treatment regimen to enhance the lesion size, speed or placement of multi-lesion or single lesion cycles. In one embodiment a microwave energy source operates to extend beyond the thermal conduction depth, or penetrate the ice ball and be absorbed in tissue beyond an ice boundary, thus extending a dimension of treatment. Also, the cooling and application of RF energy can be controlled to position the ablation region away from the surface contacted by the electrode thereby leaving surface tissue unharmed while ablating at depth or to provide an ablation band of greater uniformity with increasing depth.
    • 导管包括具有用于加热组织的消融组件的冷冻消融尖端。 冷冻消融尖端可以用冷却室实现,并且在其远端具有RF电极。 可以操作电极以温热低温冷却的组织,或者可以与RF治疗方案结合控制冷却剂,以增强病变大小,速度或多损伤或单个病变周期的放置。 在一个实施例中,微波能量源的作用是延伸超过热传导深度,或者穿透冰球并被吸收在超过冰界的组织中,从而延伸处理的尺寸。 此外,可以控制RF能量的冷却和施加,以使消融区域远离与电极接触的表面,从而在深度消融时使表面组织不受伤害,或者提供具有更高均匀度的消融带,并且随着深度增加。