公开(公告)号：US06484358B1

公开(公告)日：2002-11-26

申请号：US09672325

申请日：2000-09-28

申请人： Thach Duong ,  Conrad Boehnlein

发明人： Thach Duong ,  Conrad Boehnlein

IPC分类号： F16L502

CPC分类号： F16L41/088 ,  F16L5/02 ,  F24H9/1836 ,  F24H9/2035 ,  Y10T16/05 ,  Y10T16/063

摘要： A sealing mechanism for establishing a seal between a barrier material and a conduit that extends there through. The mechanism includes a specially configured opening formed in the barrier material and a grommet component that is inserted into the opening and locked in place by a slight rotation thereof.

摘要翻译： 用于在阻挡材料和在其之间延伸的导管之间建立密封的密封机构。 该机构包括形成在阻挡材料中的特殊构造的开口以及插入开口中并通过其轻微旋转而被锁定就位的索环部件。

公开(公告)号：US08671700B2

公开(公告)日：2014-03-18

申请号：US12690866

申请日：2010-01-20

申请人： Thach Duong ,  Jay J. Eum

发明人： Thach Duong ,  Jay J. Eum

IPC分类号： F04B53/12 ,  F04B15/08

CPC分类号： F04B37/08 ,  F04B15/08 ,  F04B53/1012

摘要： The cryogenic fluid generator includes at least one pump assembly having an actuator mounted to a container assembly. A pump assembly housing includes a longitudinal positioning opening and a pressurization cavity at a distal end terminating with a pump assembly outlet. An internal check valve assembly includes a shaft positioned within an opening of the pump assembly housing that extends into the pressurization cavity. The shaft is attached to the actuator and includes a longitudinal guidance slot; a fluid passageway; and, an internal sealing surface. A positioning bar assembly is positioned within the guidance slot. A connecting rod is securely connected at a first end to the positioning bar assembly, the connecting rod being positioned within the fluid passageway and terminating with a flow inhibiting element. A seal is positioned between the pump assembly housing and the check valve to provide a closure for the pressurization cavity.

摘要翻译： 低温流体发生器包括至少一个具有安装到容器组件的致动器的泵组件。 泵组件壳体包括纵向定位开口和在终端具有泵组件出口的远端处的加压腔。 内部止回阀组件包括位于泵组件壳体的开口内延伸进入加压腔的轴。 轴连接到致动器并且包括纵向引导槽; 流体通道; 和内密封面。 定位杆组件定位在引导槽内。 连杆在第一端处牢固地连接到定位杆组件，连杆位于流体通道内并且终止于流动抑制元件。 密封件定位在泵组件壳体和止回阀之间，以为加压腔提供封闭件。

公开(公告)号：US20120271292A1

公开(公告)日：2012-10-25

申请号：US13539749

申请日：2012-07-02

申请人： Thach Duong ,  Jay J. Eum

发明人： Thach Duong ,  Jay J. Eum

IPC分类号： A61B18/02

CPC分类号： A61B18/02 ,  A61B2017/00274 ,  A61B2017/0046 ,  A61B2018/00547 ,  A61B2018/0262 ,  A61B2090/3925

摘要： A cryosurgical probe that includes a shaft for providing a heat exchange surface for cryogenic ablation, a housing, an insulation element slideably engaged with the shaft, and an adjustable sliding apparatus. The adjustable sliding apparatus includes a slider assembly attached to the insulation element for slideably guiding the insulation element within the shaft, and an actuation assembly operatively connected to the slider assembly for allowing a user to slide the slider assembly to provide a desired adjustment of the insulation element relative to the shaft.

摘要翻译： 一种冷冻手术探针，其包括用于提供用于低温消融的热交换表面的轴，壳体，可滑动地与所述轴接合的绝缘元件以及可调滑动装置。 可调滑动装置包括附接到绝缘元件的滑块组件，用于可滑动地将绝缘元件引导到轴内;以及致动组件，其可操作地连接到滑块组件，用于允许使用者滑动滑块组件以提供期望的绝缘调节 元件相对于轴。

公开(公告)号：US07909227B2

公开(公告)日：2011-03-22

申请号：US11613054

申请日：2006-12-19

申请人： Thach Duong ,  Jenny C. Liu ,  Jay J. Eum

发明人： Thach Duong ,  Jenny C. Liu ,  Jay J. Eum

IPC分类号： B23K37/04

CPC分类号： A61B18/02 ,  A61B2018/0262 ,  F16L9/18 ,  F16L59/065 ,  F16L59/14

摘要： A vacuum insulation tube assembly which is utilized as a component in a cryosurgical probe. The vacuum insulation tube assembly includes an inner tube; and, an outer tube concentrically positioned about the inner tube. The outer tube is securely soldered at end portions of the inner tube and forms a vacuum space between the inner tube and the outer tube. The vacuum tube assemblies may be conveniently mass produced using a special fixture.

摘要翻译： 一种真空绝热管组件，用作冷冻手术探头中的组件。 真空绝热管组件包括内管; 以及围绕内管同心定位的外管。 外管在内管的端部牢固地焊接，并在内管和外管之间形成真空空间。 真空管组件可以使用特殊的夹具方便地批量生产。

公开(公告)号：US07621889B2

公开(公告)日：2009-11-24

申请号：US11148454

申请日：2005-06-09

申请人： Thach Duong ,  Jay J. Eum ,  Jenny C. Liu

发明人： Thach Duong ,  Jay J. Eum ,  Jenny C. Liu

IPC分类号： A61F7/12

CPC分类号： A61F7/12 ,  A61F7/123 ,  A61F2007/126

摘要： An inlet flow of heat exchange fluid flows from an inflow housing inlet section, and through an inflow housing main section. It then flows through an inlet fluid passageway formed between an inner balloon and a discharge tube. The flow continues around a distal end of the inner balloon, thus becoming an outlet flow of the heat exchange fluid which is directed through an outlet fluid passageway formed between the inner balloon and an outer balloon, then through an outflow housing main section and finally discharged through an outflow housing outlet section. The inner balloon is in a position offset from the central axis of the catheter. The offset relationship enhances the fluid dynamic properties of the catheter. It provides an increased turbulence, which, in turn, maximizes the heat exchange efficiency.

摘要翻译： 热交换流体的入口流从流入壳体入口部分流过流入壳体主体部分。 然后流过形成在内气囊和放电管之间的入口流体通道。 流动继续围绕内球囊的远端，从而变成热交换流体的出口流动，该热交换流体被引导通过形成在内球囊和外球囊之间的出口流体通道，然后通过流出壳体主区段并最终排出 通过流出的外壳出口部分。 内囊处于从导管的中心轴线偏移的位置。 偏移关系增强了导管的流体动力学特性。 它提供了增加的湍流，从而使热交换效率最大化。

公开(公告)号：US20070049912A1

公开(公告)日：2007-03-01

申请号：US11529615

申请日：2006-09-28

申请人： Sanford Damasco ,  Thach Duong

发明人： Sanford Damasco ,  Thach Duong

IPC分类号： A61B18/02

CPC分类号： F25B9/02 ,  A61B18/02 ,  A61B2017/0046 ,  A61B2018/00041 ,  A61B2018/0262 ,  A61B2018/0293 ,  F28D7/106 ,  F28F2255/18

摘要： A cryosurgical probe system includes a fluid supply line connectable at an inlet section to a source of cryogenic fluid; a fluid connector assembly securely connected to an outlet section of the fluid supply line for receiving fluid from the outlet section of the fluid supply line; and, a detachable cryosurgical probe detachably connectable to the fluid connector assembly. The cryosurgical probe system includes the capability of providing return fluid flow.

公开(公告)号：US06972014B2

公开(公告)日：2005-12-06

申请号：US10336322

申请日：2003-01-04

申请人： Jay J. Eum ,  Thach Duong

发明人： Jay J. Eum ,  Thach Duong

IPC分类号： A61B18/00 ,  A61B18/02 ,  A61B18/04 ,  A61B18/18

CPC分类号： A61B18/02 ,  A61B2018/00041 ,  A61B2018/046

摘要： Various embodiments of open system heat exchange catheters and methods of use are disclosed. The various catheters can be used with various ablative surgical devices. One specific exemplary use is in conjunction with cryosurgical probes involving ablation of the prostate, in which the integrity of the urethra is desired to be maintained. Other uses involve various heating ablative devices. In one embodiment an injection tube assembly is used to provide heat exchange fluid through the urethra to the bladder where it is then expelled via a suprapubic suction tube. In other embodiments a coaxial tube assembly is utilized which defines a passageway for either expelling the bladder fluid or for providing access to an endoscope. In other embodiments a double lumen assembly is utilized that defines a passageway for expelling bladder fluid.

摘要翻译： 公开了开放系统热交换导管和使用方法的各种实施例。 各种导管可以与各种烧蚀手术装置一起使用。 一个具体的示例性用途是结合涉及前列腺消融的冷冻手术探针，其中期望保持尿道的完整性。 其他用途涉及各种加热烧蚀装置。 在一个实施例中，注射管组件用于将热交换流体通过尿道提供给膀胱，然后通过耻骨上吸管将其排出。 在其它实施例中，使用同轴管组件，其限定用于排出膀胱流体或用于提供对内窥镜的通路的通道。 在其他实施例中，利用限定用于排出膀胱流体的通道的双腔组件。

公开(公告)号：US06446582B1

公开(公告)日：2002-09-10

申请号：US09696107

申请日：2000-10-24

申请人： Thach Duong ,  Conrad Boehnlein ,  Robert W. Lewis

发明人： Thach Duong ,  Conrad Boehnlein ,  Robert W. Lewis

IPC分类号： F22B504

CPC分类号： F23K5/007 ,  F23K2900/05001

摘要： An apparatus and method for extending a gas feedline through a vapor barrier enclosure simplifies and reduces the costs associated with manufacture and installation while establishing a seal between the vapor barrier and the feedline.

摘要翻译： 一种用于通过蒸气阻隔罩延伸气体供给线的装置和方法简化并降低与制造和安装相关的成本，同时在蒸气阻挡层和馈线之间建立密封。

公开(公告)号：US09072500B2

公开(公告)日：2015-07-07

申请号：US13800402

申请日：2013-03-13

申请人： Thach Duong ,  Min Frank Zeng

发明人： Thach Duong ,  Min Frank Zeng

IPC分类号： A61B18/18 ,  A61B18/02 ,  A61B18/00

CPC分类号： A61B18/02 ,  A61B2018/0022 ,  A61B2018/0212 ,  A61B2018/0268

摘要： A cryoablation system has a gas source which provides a working nitrogen gas at room temperature and at a constant set pressure, a liquid generator which is coupled to the gas source to receive the working gas, and which then generates a working cryogen fluid, and a catheter coupled to the liquid generator for receiving the working cryogen, the catheter having a distal section having a freezing element which delivers the working cryogen to a treatment location, the catheter also having a balloon positioned adjacent the distal section.

摘要翻译： 冷冻消融系统具有在室温和恒定的设定压力下提供工作氮气的气体源，液体发生器，其耦合到气体源以接收工作气体，然后产生工作中的制冷剂流体， 导管联接到液体发生器以接收工作制冷剂，导管具有远端部分，该远端部分具有将工作制冷剂输送到处理位置的冷冻元件，该导管还具有邻近远端部分定位的球囊。

公开(公告)号：US08029502B2

公开(公告)日：2011-10-04

申请号：US11430323

申请日：2006-05-09

申请人： Thach Duong

发明人： Thach Duong

IPC分类号： A61B18/02

CPC分类号： A61B18/02 ,  A61B2018/0262 ,  A61B2018/0293

摘要： The cryosurgical probe assembly with multiple deployable cryoprobes includes a) a housing assembly; b) a plurality of elongated structural support elements, each securely connected at a first end to the housing assembly; c) a tip member securely connected to second ends of the plurality of elongated structural support elements, the tip member including a plurality of cryoprobe openings; and, d) a plurality of cryoprobes each having a shaft thereon, each shaft being deployable through a respective cryoprobe opening during operation to a deployed position used for ablating tissue. In an alternate embodiment, a cylindrical housing is utilized rather than elongated structural support elements.

摘要翻译： 具有多个可展开冷冻探针的冷冻手术探针组件包括：a）壳体组件; b）多个细长结构支撑元件，每个细长结构支撑元件在第一端处牢固地连接到壳体组件; c）尖端构件，其牢固地连接到所述多个细长结构支撑元件的第二端，所述尖端构件包括多个冷冻探针开口; 以及d）多个各自具有轴的冷冻探针，每个轴可在操作期间通过相应的冷冻探针开口展开到用于烧蚀组织的展开位置。 在替代实施例中，使用圆柱形壳体而不是细长的结构支撑元件。