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    • 4. 发明授权
    • Synchronization system between aortic valve and cardiac assist device
    • 主动脉瓣与心脏辅助装置之间的同步系统
    • US07513864B2
    • 2009-04-07
    • US11178969
    • 2005-07-11
    • Allen B. KantrowitzAdrian Kantrowitz
    • Allen B. KantrowitzAdrian Kantrowitz
    • A61M1/12
    • A61M1/122A61M1/106A61M1/1067A61M1/1072A61M1/1086A61M1/12A61M1/127A61M2205/33A61M2205/3303
    • A cardiac assist device synchronization system includes a cardiac assist device and an acoustic or accelerometer sensor that provides a signal input to the cardiac assist device indicative of aortic valve closure. The cardiac assist device is coupled to a mammalian aorta and includes an inflatable chamber and a fluid pump. A fluid conduit is in communication between the chamber and the pump to provide for selective inflation of the chamber. A pump controller triggers the pump in counter-pulsation to a mammalian heart upstream from the aorta. A process for synchronizing a cardiac assist device in counter-pulsation with a left ventricle includes locating an acoustic or accelerometer sensor within a thoracic cavity of a mammal having the assist device coupled to the aorta of the mammal. Through the measurement of an acoustic or acceleration property of an aortic valve of the mammal, and the transmission of aortic valve closure measurement through a controller for the cardiac assist device, counter-pulsatile synchronization for the cardiac assist device is achieved.
    • 心脏辅助装置同步系统包括心脏辅助装置和声学或加速度计传感器,其向心脏辅助装置提供指示主动脉瓣闭合的信号输入。 心脏辅助装置耦合到哺乳动物主动脉并且包括可充气室和流体泵。 流体导管在腔室和泵之间连通以提供腔室的选择性充气。 泵控制器触发泵与主动脉上游的哺乳动物心脏反搏。 将逆向脉动中的心脏辅助装置与左心室同步的过程包括将声学或加速度计传感器定位在哺乳动物的胸腔内,该辅助装置与哺乳动物的主动脉联接。 通过测量哺乳动物的主动脉瓣的声学或加速特性,以及通过用于心脏辅助装置的控制器传播主动脉瓣闭合测量,实现了心脏辅助装置的反脉动同步。
    • 8. 发明授权
    • Percutaneous access device
    • 经皮进入装置
    • US5242415A
    • 1993-09-07
    • US929948
    • 1992-08-14
    • Adrian KantrowitzPaul S. Freed
    • Adrian KantrowitzPaul S. Freed
    • A61M1/00
    • A61M39/0247A61M2039/0261
    • A percutaneous access device includes a body having a horizontal disc-like base flange and a frusto conical projection extending centrally upwardly from one side of the base flange. An elongate flexible tube extends loosely through a bore through the projection and base flange and is sealingly bonded to the body adjacent the bottom of the bore. A coating of a silicone-polycarbonate is applied to the outer surface of the projection and is formed with a multiplicity of microscopic pores to facilitate the bonding of dermal cells to the device upon implantation. The body is of a relatively soft, flexible, biocompatible material so that the device absorbs forces tending to displace the implanted device.
    • 经皮进入装置包括具有水平盘状基部凸缘和从基部凸缘的一侧向中心向上延伸的截头圆锥形凸起的本体。 细长的柔性管通过突出部和基部凸缘松动地延伸通过孔,并且密封地结合到与孔的底部相邻的主体。 将聚硅氧烷聚碳酸酯的涂层施加到突起的外表面,并且形成有多个微孔,以便于在植入时将真皮细胞与装置结合。 身体是相对柔软的,柔性的,生物相容的材料,使得该装置吸收倾向于移植植入装置的力。
    • 9. 发明授权
    • Surgical tool
    • 手术工具
    • US5139508A
    • 1992-08-18
    • US796040
    • 1991-11-20
    • Adrian KantrowitzPaul S. Freed
    • Adrian KantrowitzPaul S. Freed
    • A61B17/32
    • A61B17/32053
    • A surgical tool for forming a circular opening through the skin which is of smaller diameter at the outer skin surface than at the inner surface of the skin employs a trephine having a circular cutting edge. The trephine is inserted into a pocket surgically formed beneath the skin with its cutting surface facing the skin. A rod member is then inserted through the skin and threaded into the trephine. The rod member is attached to a spring biassed plunger within a tool housing which is released from a ready position by withdrawal of a locking pin. Upon release of the plunger, the spring drives the plunger to drive the cutting edge of the trephine outwardly through the skin.
    • 用于形成通过皮肤的圆形开口的手术工具,其外皮表面的直径小于皮肤的内表面,采用具有圆形切割边缘的环钻。 环钻被插入手术形成在皮肤下方的口袋中,其切割表面面向皮肤。 然后将杆构件穿过皮肤并穿入环钻。 杆构件附接到工具壳体内的弹簧偏压柱塞,该工具壳体通过撤销锁定销而从就绪位置释放。 在释放柱塞时,弹簧驱动柱塞以通过皮肤向外驱动环钻的切割边缘。
    • 10. 发明授权
    • Dynamic aortic patch for thoracic or abdominal implantation
    • 用于胸部或腹部植入的动态主动脉瓣
    • US4630597A
    • 1986-12-23
    • US604944
    • 1984-04-30
    • Adrian KantrowitzPaul S. Freed
    • Adrian KantrowitzPaul S. Freed
    • A61B17/12A61M1/10A61M1/12A61F1/24A61M1/03
    • A61M1/1037A61B17/12109A61B17/12136A61M1/122A61M1/106
    • An improved dynamic aortic patch is constructed with an elongate semi-rigid shell member having a concave inner surface and a flexible membrane integrally bonded to the outer surface of the shell to define an inflatable and deflatable chamber between the concave inner surface and the membrane. The pumping capacity of the patch is determined by the concavity of the inner surface of the shell member, thus enabling the construction of a patch which may be implanted in the thoracic cavity (small concavity) or in the abdomen (large concavity). A fabric layer bonded to the membrane over the area overlying the outer surface of the shell has a peripheral suture flange projecting freely clear of the membrane, and a temporary shield adapted to overlie the fabric layer may be employed to assure that sutures placed to attach the patch within an opening in the aorta are not inadvertently passed through the membrane.
    • 改进的动态主动脉贴片由具有凹形内表面的细长半刚性壳构件和与外壳的外表面整体结合的柔性膜构成,以在凹内表面和膜之间限定可充气和可放气的腔室。 贴片的抽吸能力由壳体内表面的凹度确定,从而能够构建可植入胸腔(小凹陷)或腹部(大凹陷)的贴片。 在覆盖壳的外表面的区域上结合到膜上的织物层具有自由地远离膜突出的外围缝合线凸缘,并且可以采用适于覆盖在织物层上的临时护罩,以确保将缝合线 主动脉开口内的斑块不会无意中通过膜。