公开(公告)号：US20060015093A1

公开(公告)日：2006-01-19

申请号：US11231263

申请日：2005-09-20

申请人： Jay Eum ,  Thach Duong

发明人： Jay Eum ,  Thach Duong

IPC分类号： A61B18/02

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：US20050192565A1

公开(公告)日：2005-09-01

申请号：US11116873

申请日：2005-04-28

申请人： Jay Eum ,  Thach Duong ,  Paul LaPine

发明人： Jay Eum ,  Thach Duong ,  Paul LaPine

IPC分类号： A61B17/00 ,  A61B18/02

CPC分类号： A61B18/02 ,  A61B2017/0046 ,  A61B2018/0262

摘要： The detachable cryosurgical probe includes a disposable probe assembly and a reusable probe assembly. The disposable probe assembly includes a breakaway collar which, when twisted away, activates a finger lock element which provides release of the disposable probe assembly from the reusable probe assembly. Additional features include a safety valve assembly for impeding cryogenic working fluid flow when the disposable probe assembly is detached from the reusable probe assembly and an electrical confirmation assembly for providing electrical confirmation that the disposable probe assembly is connected. Other embodiments include a sliding mechanism that allows for selectively positioning of the vacuum tube relative to the shaft to create an ice ball of the desired size and configuration.

摘要翻译： 可拆卸的冷冻手术探针包括一次性探针组件和可重复使用的探针组件。 一次性探针组件包括分离套环，当被扭转时，该开口套环激活手指锁定元件，其提供一次性探针组件从可重复使用的探针组件的释放。 另外的特征包括一个安全阀组件，用于当一次性探头组件与可重复使用的探头组件分离时阻止低温工作流体流动;以及电气确认组件，用于提供一次性探头组件连接的电气确认。 其它实施例包括允许真空管相对于轴选择性定位以产生所需尺寸和构造的冰球的滑动机构。

公开(公告)号：US20070005050A1

公开(公告)日：2007-01-04

申请号：US11148454

申请日：2005-06-09

申请人： Thach Duong ,  Jay Eum ,  Jenny Liu

发明人： Thach Duong ,  Jay Eum ,  Jenny Liu

IPC分类号： A61B18/18

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：US20060282039A1

公开(公告)日：2006-12-14

申请号：US11417407

申请日：2006-05-04

申请人： Thach Duong ,  Jay Eum ,  Jenny Liu

发明人： Thach Duong ,  Jay Eum ,  Jenny Liu

IPC分类号： A61F7/12

CPC分类号： A61F7/12 ,  A61F2007/126

摘要： The catheter includes a multi-lumen tube having an outflow portion and an accessory portion. The accessory portion is integrally formed within an interior volume of the outflow portion. The accessory portion has a cross-section smaller than the outflow portion. The outflow portion is offset from the accessory portion such that they are integrally joined. The space between these portions defines a fluid return passageway and the space within the accessory portion defines an accessory passageway. A flexible outer sleeve cooperates with the multi-lumen tube to form a fluid inlet passageway. During operation, an inlet flow of warming fluid flows through the fluid inlet passageway formed between the outer sleeve and the multi-lumen tube. The flow continues around a distal end of the outflow portion of the multi-lumen tube, thus becoming an outlet flow of the warming fluid which is directed through the fluid return passageway.

公开(公告)号：US20050021014A1

公开(公告)日：2005-01-27

申请号：US10894789

申请日：2004-07-20

申请人： Jay Eum ,  Thach Duong

发明人： Jay Eum ,  Thach Duong

IPC分类号： A61B17/00 ,  A61B18/00 ,  A61B18/02 ,  A61B18/04 ,  A61B18/08 ,  A61B18/18 ,  A61F7/00 ,  A61F7/12

CPC分类号： A61B18/04 ,  A61B18/02 ,  A61B18/082 ,  A61B18/18 ,  A61B2017/00274 ,  A61B2018/00041 ,  A61B2018/00547 ,  A61B2018/0212 ,  A61B2018/0293 ,  A61B2018/046

摘要： An apparatus and method for warming the urethra of a patient during ablative surgery. In one embodiment, at least one ablative surgical device is inserted into a prostate region of the patient. A warming assembly is inserted through the patient's urethra and into the bladder. The warming assembly is operated to warm an outer surface thereof during operation of the ablative surgical devices. The urethra is warmed by the outer surface of the warming assembly to preserve living tissue thereof. In one embodiment, the portion of the warming assembly inserted through the patient's urethra is an electrical coil heated warming catheter subassembly. In another embodiment the inserted portion is a microwave heated tube warming catheter subassembly. Another embodiment comprises an RF heated warming catheter subassembly. An opening is preferably included to provide access for an endoscope or for fluid drainage.

摘要翻译： 一种用于在烧蚀手术期间使患者的尿道变暖的装置和方法。 在一个实施例中，至少一个烧蚀手术装置插入到患者的前列腺区域中。 加热组件穿过患者的尿道插入膀胱。 在烧蚀手术装置的操作期间，加热组件被操作以加热其外表面。 尿道由加热组件的外表面加热以保持其生物组织。 在一个实施例中，通过患者尿道插入的加热组件的部分是电线圈加热的加温导管子组件。 在另一个实施例中，插入部分是微波加热管加温导管子组件。 另一个实施例包括RF加热的加热导管子组件。 优选地包括开口以提供用于内窥镜或流体排出的通路。

公开(公告)号：US08747396B2

公开(公告)日：2014-06-10

申请号：US12581145

申请日：2009-10-18

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 assembly that includes a gas delivery assembly, including a stem and a fluid conduit subassembly bonded to the stem. The fluid conduit subassembly delivers and returns cooling fluid used for cryogenic cooling. The fluid conduit subassembly, comprises a shaft for providing a heat exchange surface for cryogenic ablation; a housing securely connected to said shaft; and, an insulation element slideably engaged with an inner surface of the shaft and slideably engaged with the stem. The cryosurgical probe assembly includes an adjustable sliding apparatus that includes a slider assembly securely attached to said insulation tube for slideably guiding the insulation tube along said shaft; and, a button assembly operatively connected to the slider assembly for allowing a user to actuate the slider assembly to provide a desired adjustment of the insulation tube relative to the shaft. A handle assembly is positioned about the housing.

摘要翻译： 一种冷冻手术探针组件，其包括气体输送组件，其包括杆和结合到所述杆的流体导管子组件。 流体导管子组件输送并返回用于低温冷却的冷却流体。 流体导管子组件包括用于提供用于低温消融的热交换表面的轴; 牢固地连接到所述轴的壳体; 以及绝缘元件，其与所述轴的内表面可滑动地接合并且可滑动地与所述杆接合。 冷冻手术探针组件包括一个可调节的滑动装置，其包括牢固地附接到所述绝缘管的滑动器组件，用于沿着所述轴可滑动地引导绝缘管; 以及可操作地连接到滑块组件的按钮组件，用于允许使用者致动滑块组件以提供相对于轴的绝缘管的期望调节。 手柄组件围绕壳体定位。

公开(公告)号：US20080147055A1

公开(公告)日：2008-06-19

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： A61B18/18 ,  F16L9/18 ,  B23K15/06 ,  B23Q3/00

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：US07189228B2

公开(公告)日：2007-03-13

申请号：US11116873

申请日：2005-04-28

申请人： Jay J. Eum ,  Thach Duong ,  Paul LaPine

发明人： Jay J. Eum ,  Thach Duong ,  Paul LaPine

IPC分类号： A61B18/02

CPC分类号： A61B18/02 ,  A61B2017/0046 ,  A61B2018/0262

摘要： The detachable cryosurgical probe includes a disposable probe assembly and a reusable probe assembly. The disposable probe assembly includes a breakaway collar which, when twisted away, activates a finger lock element which provides release of the disposable probe assembly from the reusable probe assembly. Additional features include a safety valve assembly for impeding cryogenic working fluid flow when the disposable probe assembly is detached from the reusable probe assembly and an electrical confirmation assembly for providing electrical confirmation that the disposable probe assembly is connected. Other embodiments include a sliding mechanism that allows for selectively positioning of the vacuum tube relative to the shaft to create an ice ball of the desired size and configuration.

摘要翻译： 可拆卸的冷冻手术探针包括一次性探针组件和可重复使用的探针组件。 一次性探针组件包括分离套环，当被扭转时，该开口套环激活手指锁定元件，其提供一次性探针组件从可重复使用的探针组件的释放。 另外的特征包括一个安全阀组件，用于当一次性探头组件与可重复使用的探头组件分离时阻止低温工作流体流动;以及电气确认组件，用于提供一次性探头组件连接的电气确认。 其它实施例包括允许真空管相对于轴选择性定位以产生所需尺寸和构造的冰球的滑动机构。

公开(公告)号：US20050043725A1

公开(公告)日：2005-02-24

申请号：US10954433

申请日：2004-09-30

申请人： Thach Duong ,  James Dinh

发明人： Thach Duong ,  James Dinh

IPC分类号： A61B17/00 ,  A61B18/02 ,  F25B9/02 ,  F28D7/10

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

摘要： The threaded cryostat for a cryosurgical probe system includes an outer tube and a hollow elongated threaded element positioned within the outer tube. The threaded element has integral, external threads that extend from on an outer surface thereof. During operation a working fluid is transported in a first direction between a fluid supply line and a distal end of a cryosurgical probe within a first space defined within the threaded element. Working fluid is transported in a second direction between the distal end of the cryosurgical probe and the fluid supply line within a second space defined between the outer tube and the threaded element.

摘要翻译： 用于冷冻手术探针系统的螺纹低温恒温器包括外管和位于外管内的中空细长螺纹元件。 螺纹元件具有从其外表面延伸的整体的外螺纹。 在操作期间，工作流体在限定在螺纹元件内的第一空间内的流体供应管线和冷冻手术探针的远端之间沿第一方向输送。 在外管和螺纹元件之间限定的第二空间内，工作流体沿第二方向输送在冷冻外科探针的远端和流体供应管线之间。

公开(公告)号：US09381055B2

公开(公告)日：2016-07-05

申请号：US13942387

申请日：2013-07-15

申请人： Thach Duong ,  Min Frank Zeng ,  Peng Liu ,  Chaohua Xin

发明人： Thach Duong ,  Min Frank Zeng ,  Peng Liu ,  Chaohua Xin

IPC分类号： A61B18/02 ,  A61B18/00

CPC分类号： A61B18/02 ,  A61B2017/00323 ,  A61B2018/00101 ,  A61B2018/0022 ,  A61B2018/00285 ,  A61B2018/00577 ,  A61B2018/0212 ,  A61B2018/0287

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.