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1. 发明申请

US20050055045A1 Composite medical devices 审中-公开
标题翻译：复合医疗器械
公开(公告)号：US20050055045A1
公开(公告)日：2005-03-10
申请号：US10659490
申请日：2003-09-10
申请人： Robert DeVries , Kristian DiMatteo , Steven Walak
发明人： Robert DeVries , Kristian DiMatteo , Steven Walak
IPC分类号： A61F2/00 , A61F2/01 , A61F2/90 , A61M29/00
CPC分类号： A61F2/01 , A61F2/90 , A61F2002/016 , A61F2220/0008 , A61F2230/005 , A61F2230/0067 , A61F2230/0069 , A61F2250/0018
摘要： Composite medical devices for placement within a body vessel are disclosed. A composite medical device may include an intravascular filter, stent, stent graft, or other implantable device having a relatively stiff outer member, and an elastic inner member. In some embodiments, the composite medical device may comprise an intravascular filter having a plurality of elongated legs formed from a composite material. In other embodiments, the composite medical device may comprise a composite stent or stent graft formed of composite threads. Selective portions of the outer member can be removed to expose the elastic inner member, thereby forming a flexibility region on the device.
摘要翻译：公开了用于放置在身体容器内的复合医疗装置。复合医疗装置可以包括血管内过滤器，支架，支架移植物或具有相对刚性的外部构件的其它可植入装置和弹性内部构件。在一些实施例中，复合医疗装置可以包括具有由复合材料形成的多个细长腿的血管内过滤器。在其他实施例中，复合医疗装置可以包括由复合线形成的复合支架或支架移植物。可以去除外部构件的选择部分以暴露弹性内部构件，从而在装置上形成柔性区域。

2. 发明申请

US20050131452A1 Recoilable thrombosis filtering device and method 审中-公开
标题翻译：可回收血栓形成过滤装置及方法
公开(公告)号：US20050131452A1
公开(公告)日：2005-06-16
申请号：US11043835
申请日：2005-01-26
申请人： Steven Walak , Bernedette Proskoczilo , Kristian DiMatteo , Robert DeVries
发明人： Steven Walak , Bernedette Proskoczilo , Kristian DiMatteo , Robert DeVries
IPC分类号： A61B17/00 , A61F2/00 , A61F2/01 , A61L33/00 , A61M1/02 , A61M29/00
CPC分类号： A61F2/01 , A61F2002/016 , A61F2002/018 , A61F2210/0028 , A61F2210/0038 , A61F2230/005 , A61F2230/0067 , A61F2230/008
摘要： A thrombosis filter which can be securely affixed at a selected location in the vascular system of a patient and removed when no longer required. A first embodiment of the thrombosis filter includes a plurality of struts having a first grouping and a second grouping. The first grouping of struts and the second grouping of struts radiate in opposite directions. The free ends of the struts include anchoring elements which anchor into the walls of a blood vessel. At least one grouping of struts is comprised of a shape memory material. When these struts are at body temperature, their free ends engage the wall of the blood vessel. When the temperature of the shape memory alloy struts is selectively varied from body temperature, the struts retract into the body portion of the thrombosis filter. A second embodiment of the thrombosis filter includes a generally cylindrical anchoring portion, and a generally conical filtering portion, the filtering portion includes a plurality of elongated strands interwoven to create a pattern of cells. These strands extend beyond the filtering portion to comprise the anchoring portion. These strands are made of a shape memory material. At body temperature, the thrombus filter takes on an expanded shape. At a temperature other than body temperature, the thrombus filter assumes a contracted shape. When the thrombus filter assumes a contracted shape, the anchoring portion retracts away from the walls of the blood vessel. A method is also disclosed for removing the thrombus filter from a blood vessel. The method comprises changing the temperature of the thrombus filter so that it assumes a retracted shape then pulling the thrombus filter inside the lumen of a retrieval catheter.
摘要翻译：一种血栓形成过滤器，其可以牢固地固定在患者的血管系统中的选定位置，并且在不再需要时被去除。血栓形成过滤器的第一实施例包括具有第一分组和第二分组的多个支柱。第一组支柱和第二组支柱沿相反方向辐射。支柱的自由端包括固定在血管壁上的锚定元件。至少一组支柱由形状记忆材料构成。当这些支柱处于体温时，其自由端接合血管的壁。当形状记忆合金支柱的温度从体温选择性地变化时，支柱缩回到血栓形成过滤器的主体部分。血栓形成过滤器的第二实施例包括大致圆柱形的锚固部分和大致锥形的过滤部分，过滤部分包括交织以形成细胞图案的多个细长股线。这些股线延伸超过过滤部分以包括锚固部分。这些股线由形状记忆材料制成。在体温下，血栓过滤器呈现膨胀形状。在体温以外的温度下，血栓过滤器呈现收缩形状。当血栓过滤器呈现收缩形状时，锚定部分从血管的壁缩回。还公开了从血管中去除血栓滤过器的方法。该方法包括改变血栓过滤器的温度，使其呈现缩回形状，然后将血栓过滤器拉回到取出导管的内腔内。

3. 发明申请

US20070200656A1 TWO WAY COMPOSITE NITINOL ACTUATOR 审中-公开
标题翻译：两路复合NITINOL执行器
公开(公告)号：US20070200656A1
公开(公告)日：2007-08-30
申请号：US11742966
申请日：2007-05-01
申请人： Steven Walak
发明人： Steven Walak
IPC分类号： H01H37/52
CPC分类号： B32B15/018 , B32B15/01 , B32B15/015
摘要： A two-way actuated shape memory composite material is provided. The composite material includes a shape memory alloy and an elastic metal. The composite material takes a first shape at a lower temperature and a second shape at a higher temperature. At the higher temperature, the shape memory alloy has a “remembered” shape, causing the composite material to take the second shape. The elastic material provides the composite material with elastic properties which cause the composite material to return to the first shape when cooled to the lower temperature.
摘要翻译：提供双向致动形状记忆复合材料。复合材料包括形状记忆合金和弹性金属。复合材料在较低温度下采用第一种形状，在较高温度下采用第二种形状。在较高的温度下，形状记忆合金具有“记忆”的形状，导致复合材料呈第二形状。弹性材料为复合材料提供弹性，当冷却至较低温度时，使复合材料回复到第一种形状。

4. 发明申请

US20060149364A1 Low profile vascular graft 审中-公开
标题翻译：薄型血管移植
公开(公告)号：US20060149364A1
公开(公告)日：2006-07-06
申请号：US11026642
申请日：2004-12-31
申请人： Steven Walak , John Sherry
发明人： Steven Walak , John Sherry
IPC分类号： A61F2/06
CPC分类号： A61F2/07 , A61F2/88 , A61F2/89 , A61F2002/065 , A61F2002/075 , A61F2230/0054 , A61F2250/0003
摘要： The low profile vascular graft of the present invention includes a tube structure having outer and inner surfaces, and a support structure having a chamber structure secured to the outer or inner surface. The support structure includes a core structure contained within the chamber structure. The core structure is transformable from a conformance condition to a reinforcement condition. When the core structure is in the conformance condition, it provides insubstantial resistance to deformation of the tube structure. When the core structure is in the reinforcement condition, it provides substantial resistance to deformation of the tube structure.
摘要翻译：本发明的低剖面血管移植物包括具有外表面和内表面的管结构，以及具有固定到外表面或内表面的腔室结构的支撑结构。支撑结构包括包含在室结构内的芯结构。核心结构可以从一致性条件转变为加固条件。当芯体结构处于一致性状态时，它提供了对管结构变形的非实质性阻力。当芯结构处于加固条件时，其对管结构的变形提供了显着的阻力。

5. 发明申请

US20050165301A1 Medical devices visible by magnetic resonance imaging 有权
标题翻译：磁共振成像可见的医疗器械
公开(公告)号：US20050165301A1
公开(公告)日：2005-07-28
申请号：US10763690
申请日：2004-01-23
申请人： Scott Smith , Steven Walak , Lixiao Wang , Jan Weber , Sheng-Ping Zhong
发明人： Scott Smith , Steven Walak , Lixiao Wang , Jan Weber , Sheng-Ping Zhong
IPC分类号： A61B19/00 , A61M25/00 , A61M25/01 , G01R33/28 , A61B5/05
CPC分类号： G01R33/285 , A61B2090/3954 , A61M25/0043 , A61M25/0127 , G01R33/286
摘要： Medical devices that are visible by magnetic resonance imaging (MRI), and optionally, other imaging techniques, are described. In some embodiments, a medical device adapted for insertion into the body includes an elongated shaft and an electrically conductive path extending spirally about a portion of the shaft. The conductive path is capable of being connected to a current source. The medical device can further include one or more contrast agents (such as MRI contrast agents, radiopaque materials, and/or ultrasound visible materials), which can be arranged in a predetermined manner.
摘要翻译：描述了通过磁共振成像（MRI）可视的医疗装置，以及可选的其他成像技术。在一些实施例中，适于插入到本体中的医疗装置包括细长轴和围绕轴的一部分螺旋地延伸的导电路径。导电路径能够连接到电流源。医疗装置还可以包括一种或多种可以以预定方式布置的造影剂（例如MRI造影剂，不透射线材料和/或超声可见材料）。

6. 发明申请

US20050099261A1 Two way composite nitinol actuation 审中-公开
标题翻译：双向复合镍钛诺致动
公开(公告)号：US20050099261A1
公开(公告)日：2005-05-12
申请号：US10701456
申请日：2003-11-06
申请人： Steven Walak
发明人： Steven Walak
IPC分类号： B32B15/01 , H01H37/46
CPC分类号： B32B15/018 , B32B15/01 , B32B15/015
摘要： A two-way actuated shape memory composite material is provided. The composite material includes a shape memory alloy and an elastic metal. The composite material takes a first shape at a lower temperature and a second shape at a higher temperature. At the higher temperature, the shape memory alloy has a “remembered” shape, causing the composite material to take the second shape. The elastic material provides the composite material with elastic properties which cause the composite material to return to the first shape when cooled to the lower temperature.
摘要翻译：提供双向致动形状记忆复合材料。复合材料包括形状记忆合金和弹性金属。复合材料在较低温度下采用第一种形状，在较高温度下采用第二种形状。在较高的温度下，形状记忆合金具有“记忆”的形状，导致复合材料呈第二形状。弹性材料为复合材料提供弹性，当冷却至较低温度时，使复合材料回复到第一种形状。

7. 发明申请

US20090182303A1 Targeted Therapeutic Agent Release for Weight Loss Therapy 审中-公开
标题翻译：用于减肥治疗的靶向治疗剂释放
公开(公告)号：US20090182303A1
公开(公告)日：2009-07-16
申请号：US12337726
申请日：2008-12-18
申请人： Steven Walak , Michael Madden , Paul Smith
发明人： Steven Walak , Michael Madden , Paul Smith
IPC分类号： A61K9/22 , A61K38/00 , A61M25/10 , A61K9/00
CPC分类号： A61M31/002 , A61F5/0013
摘要： A method for treating obesity comprises anchoring at a first target site within a body a first therapeutic agent delivery device including a first therapeutic agent reservoir coupled to a first outlet which, when the first device is anchored at the first target site, is positioned adjacent to a first target treatment location within a GI tract of a patient and releasing a first therapeutic agent from the first reservoir via the first outlet.
摘要翻译：治疗肥胖症的方法包括在体内的第一靶部位处锚定第一治疗剂递送装置，所述第一治疗剂递送装置包括联接到第一出口的第一治疗剂储存器，当第一装置锚定在第一靶部位时，在患者胃肠道内的第一目标治疗位置，并且经由第一出口从第一储存器释放第一治疗剂。

8. 发明申请

US20090131855A1 APPARATUS AND METHODS FOR DRUG RELEASE IN TISSUE ABLATION PROCEDURES 有权
标题翻译：组织吸收程序中药物释放的装置和方法
公开(公告)号：US20090131855A1
公开(公告)日：2009-05-21
申请号：US12271714
申请日：2008-11-14
申请人： Kimbolt Young , Steven Walak , Paul DiCarlo
发明人： Kimbolt Young , Steven Walak , Paul DiCarlo
IPC分类号： A61M37/00 , A61B18/18
CPC分类号： A61B18/1477 , A61B18/148 , A61B2018/00154 , A61B2018/143 , A61B2018/1432 , A61B2018/1475 , A61B2018/1495 , A61B2218/002
摘要： Tissue ablation probes and methods for treating tissue are provided. The tissue ablation probe comprises an elongated probe shaft, at least one electrode carried by the distal end of the probe shaft, and a pharmaceutical agent carried by the probe shaft. The pharmaceutical agent may be disposed on the electrode(s), the probe shaft, or a releasable portion associated with the electrode or the probe shaft. A method for treating tissue comprises introducing a tissue ablation probe to a tissue site, operating the tissue ablation probe to ablate tissue at the tissue site, and releasing a pharmaceutical agent from the tissue ablation probe at the tissue site.
摘要翻译：提供组织消融探针和治疗组织的方法。组织消融探针包括细长的探针轴，由探针轴的远端承载的至少一个电极和由探针轴承载的药剂。药剂可以设置在与电极或探针轴相关联的电极，探针轴或可释放部分上。一种用于治疗组织的方法包括将组织消融探针引入组织部位，操作组织消融探针以烧蚀组织部位处的组织，以及在组织部位从组织消融探针释放药剂。

9. 发明申请

US20080312644A1 CRYOGENIC BALLOON ABLATION INSTRUMENTS AND SYSTEMS 审中-公开
标题翻译：低温气泡吸收仪器和系统
公开(公告)号：US20080312644A1
公开(公告)日：2008-12-18
申请号：US11763372
申请日：2007-06-14
申请人： Michael Fourkas , Steven Walak , Kurt Geitz , Kristine Tatsutani
发明人： Michael Fourkas , Steven Walak , Kurt Geitz , Kristine Tatsutani
IPC分类号： A61B18/02
CPC分类号： A61B18/02 , A61B90/39 , A61B2017/00084 , A61B2017/22051 , A61B2018/0022 , A61B2018/0212 , A61B2090/3937
摘要： Cryogenic tissue ablation instruments for treating body tissue include an elongate flexible body with a proximal supply port for coupling with a pressurized coolant (e.g., liquid N2O), a supply lumen in fluid communication with the proximal supply port, and an expandable cryogenic balloon carried on a distal portion of the elongate body, the balloon having a wall defining an interior of the balloon. A dispersion member coupled to or otherwise formed out of a distal end portion of the elongate body has an interior lumen in fluid communication with or otherwise comprising a portion of the supply lumen, the dispersion member having one or more coolant dispersion apertures in fluid communication with the balloon interior and sized and located with respect to the balloon wall such that a pressurized flowable coolant in the supply lumen will enter the balloon interior through the one or more apertures in the form of a liquid spray that contacts and provides (through rapid evaporation) substantially uniform cooling of an interior wall surface of a treatment region of the balloon.
摘要翻译：用于治疗身体组织的低温组织消融装置包括细长的柔性体，其具有用于与加压的冷却剂（例如，液体N2O）结合的近侧供应口，与近侧供应口流体连通的供应管腔和承载在其上的可膨胀低温球囊细长体的远端部分，气囊具有限定球囊内部的壁。与细长体的远端部分连接或以其它方式形成的分散体具有与供应内腔流体连通或以其他方式包含供应内腔的一部分的内腔，该分散体具有一个或多个冷却剂分散孔，其与气囊内部并且相对于球囊壁定尺寸和定位，使得供应内腔中的加压可流动的冷却剂将通过接触并提供（通过快速蒸发）的液体喷雾形式的一个或多个孔进入气囊内部，对气囊的治疗区域的内壁表面进行大致均匀的冷却。

10. 发明授权

US07399311B2 Medical devices 有权
标题翻译：医疗设备
公开(公告)号：US07399311B2
公开(公告)日：2008-07-15
申请号：US10212508
申请日：2002-08-05
申请人： William Bertolino , Andrew J. Campbell , Steven Walak
发明人： William Bertolino , Andrew J. Campbell , Steven Walak
IPC分类号： A61F2/06
CPC分类号： A61F2/95 , A61F2/958 , A61F2/97 , A61F2002/9583
摘要： A medical device system includes a catheter, an expandable prosthesis over the catheter, and a holding material between the catheter and the prosthesis. The holding material initially holds the prosthesis over the catheter.
摘要翻译：医疗装置系统包括导管，导管上方的可扩张假体以及导管和假体之间的保持材料。保持材料最初将假体固定在导管上。

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