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公开(公告)号：US5423755A
公开(公告)日：1995-06-13
申请号：US934981
申请日：1992-08-26
CPC分类号： A61M25/104 , A61B90/39 , A61M2025/1068 , A61M2025/1093 , A61M25/0014
摘要： A balloon dilatation catheter for the dilatation of a prostatic urethra having a reinforcing element extending through the elongated shaft of the catheter to prevent significant elongation or failure of the catheter and a traction member for assisting in the resistance to substantial tensile stresses. The balloon dilatation catheter also includes an expandable means between the balloon and catheter shaft to extend the length of the balloon when it is deflated. The extension of the deflated balloon prevents the balloon from bunching up and interfering with the withdrawal of the balloon through the working channel of the cystoscopic sheath upon the completion of the dilatation. The catheter has a marker for easy visualization so that the balloon can be positioned reliably and a tip construction so that the catheter can be advanced into the bladder safely.
摘要翻译： 用于扩张前列腺尿道的球囊扩张导管，其具有延伸穿过导管的细长轴的加强元件，以防止导管的显着伸长或失效以及用于辅助抵抗实质拉伸应力的牵引构件。 球囊扩张导管还包括球囊和导管轴之间的可扩张装置，以在气囊放气时延伸气囊的长度。 放气气囊的延伸可防止气囊在扩张完成之后发生聚拢并干扰气囊通过膀胱镜套管的工作通道的撤出。 导管具有易于观察的标记，使得气囊可以可靠地定位并且可以使导管能够安全地进入膀胱。
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公开(公告)号：US5807327A
公开(公告)日：1998-09-15
申请号：US569825
申请日：1995-12-08
CPC分类号： A61F2/958 , A61F2002/9583 , A61M2025/1075
摘要： A stent delivery system including a stent delivery catheter, a stent dilatation balloon sealingly affixed to the catheter and adapted for inflation by a pressurized fluid introduced into the catheter, and an expandable stent surrounding the balloon and adapted for implantation into a bodily vessel upon inflation of the balloon. The system also includes structure integral with the balloon and possibly the catheter for resisting movement of the stent relative to the balloon throughout all phases of a stent delivery and implantation operation prior to deflation and withdrawal of the balloon from the stent following implantation of the stent.
摘要翻译： 支架输送系统，包括支架输送导管，密封地固定到导管并适于通过引入导管的加压流体膨胀的支架扩张球囊，以及围绕球囊的可扩张支架，并适于在充气时植入体内血管 气球。 该系统还包括与球囊一体的结构，以及可能的导管，用于在植入支架之前放气和从支架中取出囊之前，在支架递送和植入操作的所有阶段期间抵抗支架相对于球囊的移动。
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3.发明授权
公开(公告)号：US5833657A
公开(公告)日：1998-11-10
申请号：US642365
申请日：1996-05-03
CPC分类号： A61M25/1029 , A61L29/06 , A61L29/085 , A61M2025/1059 , A61M2025/1075 , A61M2025/1084 , A61M25/1038 , B29C49/04 , B29C49/22 , B29L2022/022 , B29L2031/7542
摘要： A balloon element for use in a catheter has a multi-layered single-walled structure and a compliance characteristic exhibiting a first, non-compliant region at low operating pressures and a secondary compliant region at higher operating pressures. The properties of the balloon element permit it to serve for both dilatation of bodily vessels and stent delivery and implantation. A method of manufacturing the balloon element involves extrusion of a tube of material, such as PEEK, which serves as an inner wall layer of the finished balloon element and provides the desired strength and compliance characteristics of the balloon element, and a post-extrusion over the first tube, which provides an outer wall layer in the finished balloon element imparting abrasion resistance and other desirable mechanical properties.
摘要翻译： 用于导管的球囊元件具有多层单壁结构和在较低工作压力下呈现出第一非顺应性区域的柔顺特性，以及在较高工作压力下的次要顺应性区域。 球囊元件的性质允许其用于体液扩张和支架输送和植入。 制造球囊元件的方法包括挤出诸如PEEK的材料管，其用作成品球囊元件的内壁层，并提供球囊元件所需的强度和顺应特性，以及后挤压 第一管，其在成品球囊元件中提供外壁层，赋予耐磨性和其它期望的机械性能。
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公开(公告)号：US06254525B1
公开(公告)日：2001-07-03
申请号：US09432518
申请日：1999-11-02
IPC分类号： A61M110
CPC分类号： A61M1/122 , A61M1/106 , A61M1/1068 , A61M1/1086 , A61M1/12 , A61M2205/33 , A61M2205/3303 , A61N1/3621 , A61N1/3962
摘要： A cardiac assist system includes a sensor that is operative to sense the electrical activity of a patient's heart. The sensed electrical activity is processed to determine the onset of ventricular contraction. A compressive force from a ventricular assist device is applied to the ventricles during at least a portion of the heart's ventricular contraction. The cardiac assist system also includes an electrical stimulating system. Thus, in the event the heart begins to fibrillate, the electrical stimulating system is actuated to apply stimulating pulses to the heart.
摘要翻译： 心脏辅助系统包括可感测患者心脏的电活动的传感器。 处理感测到的电活动以确定心室收缩的发作。 在心脏心室收缩的至少一部分期间，将心室辅助装置的压缩力施加到心室。 心脏辅助系统还包括电刺激系统。 因此，在心脏开始原纤化的情况下，电刺激系统被致动以向心脏施加刺激脉冲。
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5.发明授权Intravascular catheter having an adjustable length infusion section to delivery therapeutic fluid 失效血管内导管具有可输送治疗流体的可调节长度的输注部分
公开(公告)号：US4968306A
公开(公告)日：1990-11-06
申请号：US377243
申请日：1989-07-07
CPC分类号： A61M25/007 , A61B2017/22084 , A61M2025/0175 , A61M25/0075
摘要： An elongated catheter assembly for the intravascular delivery of therapeutic fluids which has an infusion section on the distal end for the discharge of fluids to the exterior of the catheter and an elongated sheath which moves longitudinally to vary the length of the infusion section through which treatment fluid can pass. The sheath preferably is elongated so that the position thereof can be adjusted from the proximal end of the catheter assembly. In this manner, the effective length of the infusion section can be adjusted to the length of the treatment site, such as a thrombus.
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公开(公告)号：US06282445B1
公开(公告)日：2001-08-28
申请号：US09417812
申请日：1999-10-14
IPC分类号： A61N139
CPC分类号： A61N1/0587 , A61M1/106 , A61M1/1068 , A61M1/1086 , A61M1/12 , A61M2205/33 , A61M2205/3303 , A61N1/05 , A61N1/39
摘要： A cardiac support system includes a ventricular assist device adapted to be extended over a portion of a patient's heart to assist the ventricles of the heart to properly contract. One or more stimulating electrodes are mounted on the ventricular assist device in selected locations such that when the ventricular assist device is extended over the heart, the stimulation electrodes are in close proximity to the surface of the heart. The system further includes one or more external pick-up electrodes that receive externally applied energy and conduct that energy to the one or more stimulating electrodes via conductive leads. The external pick-up electrodes may be mounted on the outer surface of the ventricular assist device, or can be located at some other location inside the patient's body. The externally-applied energy will typically be supplied by standard defibrillation paddles located outside of the patient's body. In place of the pick-up electrodes, the stimulating electrodes can be wired directly to, respectively, a source of electrical energy and a ground plate.
摘要翻译： 心脏支持系统包括适于延伸到患者心脏的一部分上以协助心脏心室的心室辅助装置以适当地收缩。 一个或多个刺激电极安装在心室辅助装置的选定位置，使得当心室辅助装置在心脏上延伸时，刺激电极紧邻心脏表面。 该系统还包括一个或多个外部拾取电极，其接收外部施加的能量并且经由导电引线将该能量传导到一个或多个刺激电极。 外部拾取电极可以安装在心室辅助装置的外表面上，或者可以位于患者体内的其他位置。 外部施加的能量通常由位于患者身体外部的标准除颤桨提供。 代替拾取电极，刺激电极可以分别直接连接到电能源和接地板。
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公开(公告)号：US06238334B1
公开(公告)日：2001-05-29
申请号：US09185287
申请日：1998-11-03
申请人： Willaim A. Easterbrook, III , Ludmila Gudis , Mark S. Howansky , Howard R. Levin , Paul Michelman , Robert W. Reinhardt , Craig W. Sherman , Joshua E. Tsitlik , Naum Ziselson
发明人： Willaim A. Easterbrook, III , Ludmila Gudis , Mark S. Howansky , Howard R. Levin , Paul Michelman , Robert W. Reinhardt , Craig W. Sherman , Joshua E. Tsitlik , Naum Ziselson
IPC分类号： A61M110
CPC分类号： A61M1/1068 , A61M1/1001 , A61M1/1008 , A61M1/106 , A61M1/12
摘要： A ventricular cuff is designed to assist a heart to pump blood by applying uniform pressure to a majority portion of an exterior ventricular surface of the heart. A heart engaging structure is preferably provided for releasably engaging the heart to hold the heart in place relative to the cuff. The ventricular cuff includes an outer shell, an inflatable inner bladder and a fastener assembly. The heart engaging structure and ventricular cuff define an upwardly opening chamber sized for receiving a heart. The bladder has an opening for communication with a source of fluid under pressure so that the bladder is cyclically inflated and deflated at a predetermined rate to assist the ventricles of the heart to properly contract.
摘要翻译： 心室套被设计成通过对心脏的外心室表面的大部分施加均匀的压力来帮助心脏泵血。 心脏接合结构优选地被提供用于可释放地接合心脏以将心脏相对于袖带保持在适当位置。 心室套包括外壳，可充气内囊和紧固件组件。 心脏接合结构和心室袖口限定了用于接收心脏的向上开口腔。 膀胱具有用于与压力下的流体源通信的开口，使得膀胱以预定的速率循环地膨胀和放气，以帮助心脏的心室适当收缩。
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