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31. 发明授权

US09877781B2 Electrode catheter device with indifferent electrode for direct current tissue therapies 有权
公开(公告)号：US09877781B2
公开(公告)日：2018-01-30
申请号：US13885776
申请日：2011-11-18
申请人： Martin M. Grasse , Richard E. Stehr , Israel A. Byrd , Lynn E. Gilmour , D. Curtis Deno , Troy T. Tegg , James V. Kauphusman , Saurav Paul , Jeffrey A. Schweitzer
发明人： Martin M. Grasse , Richard E. Stehr , Israel A. Byrd , Lynn E. Gilmour , D. Curtis Deno , Troy T. Tegg , James V. Kauphusman , Saurav Paul , Jeffrey A. Schweitzer
IPC分类号： A61N1/00 , A61B5/04 , A61B18/16 , A61B5/042 , A61B18/14 , A61B18/00 , A61M25/01 , A61M25/06
CPC分类号： A61B18/16 , A61B5/042 , A61B18/1492 , A61B2018/00357 , A61B2018/00613 , A61B2018/00791 , A61B2018/1435 , A61B2018/162 , A61M25/0147 , A61M2025/0681
摘要： An electrode catheter device with indifferent electrode for direct current tissue therapies is disclosed. An example of the catheter device has a flexible tubing with at least one ablation electrode. The catheter device also may also be used with a sheath for introducing the flexible tubing inside a patient's body. An indifferent electrode on the sheath can provide a ground for a direct current (DC) pulse to deliver electrical energy and create an electrical field adjacent a tissue. Various other embodiments are also disclosed.

32. 发明授权

US08998826B2 Contact sensor and sheath exit sensor 有权
公开(公告)号：US08998826B2
公开(公告)日：2015-04-07
申请号：US13608553
申请日：2012-09-10
申请人： John A. Hauck , Jeffrey A. Schweitzer , Kenneth H. Drew
发明人： John A. Hauck , Jeffrey A. Schweitzer , Kenneth H. Drew
IPC分类号： A61B5/103 , A61B5/053 , A61B5/06 , A61B5/00 , A61B18/14 , A61B19/00 , A61B18/00
CPC分类号： A61B5/063 , A61B5/0538 , A61B5/6852 , A61B5/6885 , A61B5/7228 , A61B18/1492 , A61B34/20 , A61B2018/00755 , A61B2018/00839 , A61B2018/00875 , A61B2018/1467 , A61B2018/1472 , A61B2034/105 , A61B2034/2051 , A61B2090/065 , A61B2560/0475 , A61B2562/0214
摘要： A system and method is provided that allows for determining the local impedance of one or more electrodes of an electrode catheter. Such local impedance may be utilized to identify the relative position of an electrode catheter to a sheath of a guiding introducer. In another arrangement, local impedance of a catheter electrode can be utilized to calibrate a catheter electrode to provide improved contact sensing.

33. 发明授权

US08849393B2 Correction of shift and drift in impedance-based medical device navigation using measured impedances at external patch electrodes 有权
标题翻译：使用测量的外部贴片电极的阻抗校正基于阻抗的医疗设备导航中的位移和漂移
公开(公告)号：US08849393B2
公开(公告)日：2014-09-30
申请号：US13690737
申请日：2012-11-30
申请人： John A. Hauck , Jeffrey A. Schweitzer , Lev A. Koyrakh
发明人： John A. Hauck , Jeffrey A. Schweitzer , Lev A. Koyrakh
IPC分类号： A61B5/00
CPC分类号： A61B5/063 , A61B5/053 , A61B5/6801 , A61B5/742
摘要： A system and method are provided for determining characteristics of a device electrode disposed on a medical device within a body. A plurality of measurement electrodes are coupled to an external surface of the body and establish transmission paths for current through the body. An electronic control unit (ECU) is configured to cause transmission of current between a pair of active electrodes selected from the measurement electrodes and thereby generate a voltage on the device electrode. The ECU receives impedance signals from a plurality of passive electrodes among the measurement electrodes other than the active electrodes. The ECU establishes a virtual reference electrode at a reference position within the body responsive to the impedance signals and computes a position of the device responsive to the voltage on the device electrode and the reference position of the reference electrode. The ECU may also compute impedances at the device and measurement electrodes.
摘要翻译：提供了一种用于确定设置在身体内的医疗装置上的装置电极的特性的系统和方法。多个测量电极耦合到身体的外表面并建立用于通过身体的电流的传输路径。电子控制单元（ECU）被配置为在从测量电极中选择的一对有源电极之间引起电流的传输，从而在器件电极上产生电压。 ECU从除了有源电极之外的测量电极中的多个无源电极接收阻抗信号。 ECU根据阻抗信号在主体内的参考位置建立虚拟参考电极，并根据器件电极上的电压和参考电极的参考位置计算器件的位置。 ECU还可以计算设备和测量电极处的阻抗。

34. 发明申请

US20140128722A1 Noise tolerant localization systems and methods 有权
标题翻译：耐噪声定位系统和方法
公开(公告)号：US20140128722A1
公开(公告)日：2014-05-08
申请号：US14123698
申请日：2012-04-18
申请人： Jeffrey A. Schweitzer , D. Curtis Deno , Timothy G. Curran , Larry J. Hull
发明人： Jeffrey A. Schweitzer , D. Curtis Deno , Timothy G. Curran , Larry J. Hull
IPC分类号： A61B5/06 , A61B5/042 , G01R33/567 , A61B5/00
CPC分类号： A61B5/062 , A61B5/0402 , A61B5/042 , A61B5/055 , A61B5/063 , A61B5/7203 , A61B5/7217 , A61B5/7264 , A61B18/1492 , A61B34/20 , A61B2090/374 , G01R33/5673
摘要： A system and method for tracking catheter electrode locations with the body of a patient during an MRI scan sequence includes mitigation logic configured to identify one or more impedance measurements that were taken during potentially noise-inducing conditions (i.e., magnet gradients, RF pulses), and were thus subject to corruption by noise. The mitigation logic is configured to replace the potentially corrupt impedance measurements with previously-obtained impedance measurements taken from an immediately preceding acquisition cycle (e.g., from a previous time-slice).
摘要翻译：用于在MRI扫描序列期间跟踪患者身体的导管电极位置的系统和方法包括被配置为识别在潜在的引起噪声的条件（即磁梯度，RF脉冲）期间所采取的一个或多个阻抗测量的缓解逻辑，因此受到噪音的腐败。缓解逻辑被配置为用先前获得的阻抗测量值取代潜在的损坏的阻抗测量值，该阻抗测量值取自紧接在前的采集周期（例如，从先前的时间片）。

35. 发明申请

US20130172712A1 ELECTRICALLY TRANSPARENT INTRODUCER SHEATH 有权
标题翻译：电动透明导板
公开(公告)号：US20130172712A1
公开(公告)日：2013-07-04
申请号：US13339547
申请日：2011-12-29
申请人： Lev A. Koyrakh , Daniel J. Potter , Jeffrey A. Schweitzer , D. Curtis Deno , Anthony D. Hill , Dale E. Just
发明人： Lev A. Koyrakh , Daniel J. Potter , Jeffrey A. Schweitzer , D. Curtis Deno , Anthony D. Hill , Dale E. Just
IPC分类号： A61B5/04
CPC分类号： A61B5/04 , A61B5/02444 , A61B5/0538 , A61B5/14503 , A61B2560/06 , A61M25/005 , A61M25/0662
摘要： An introducer sheath for a medical device is provided. The sheath includes a deformable, elongate body disposed about a longitudinal axis. The body has proximal and distal ends and defines a lumen extending between the proximal and distal ends and configured to allow passage of the medical device therethrough. The body is configured to allow an electric current to pass radially between a space outside of the body and the lumen such that the position of the medical device within a patient can be monitored and electrogram readings from body tissues can be measured while the device is in the sheath. In some embodiments of the invention, the body may include a one or more apertures extending from the radially outer surface of the body to the lumen or a portion of the body may be made from a conductive and/or fluid permeable material.
摘要翻译：提供了一种用于医疗装置的引导器护套。护套包括围绕纵向轴线设置的可变形的细长体。主体具有近端和远端并且限定在近端和远端之间延伸的构造成允许医疗装置通过的内腔。身体构造成允许电流在身体外部的空间和内腔之间径向通过，使得可以监测患者体内的医疗装置的位置，并且可以在装置处于状态时测量来自身体组织的电描记图读数护套。在本发明的一些实施例中，主体可以包括从主体的径向外表面延伸到内腔的一个或多个孔，或者主体的一部分可以由导电和/或流体可渗透材料制成。

36. 发明申请

US20130138404A1 METHOD AND SYSTEM FOR GENERATING AND/OR REPAIRING A SURFACE MODEL OF A GEOMETRIC STRUCTURE 有权
标题翻译：用于产生和/或修复几何结构的表面模型的方法和系统
公开(公告)号：US20130138404A1
公开(公告)日：2013-05-30
申请号：US13306376
申请日：2011-11-29
申请人： Carlos Carbonera , Eric J. Voth , Jeffrey A. Schweitzer
发明人： Carlos Carbonera , Eric J. Voth , Jeffrey A. Schweitzer
IPC分类号： G06G7/60 , G06F17/10
CPC分类号： A61B5/1076 , A61B5/0044 , A61B5/0053 , A61B5/0422 , G06T17/205 , G06T2210/41 , G06T2210/56
摘要： A method and system for generating and/or repairing surface models is provided. The method comprises acquiring data points corresponding to surface locations of a structure. The method further comprises generating a surface model of the structure based on the data points. The method further comprises adding additional data points to the point cloud formed by the acquired data points, and updating the model by constructing a surface model based on the added data points. The system comprises a processing apparatus configured to acquire data points corresponding to respective surface locations of a structure. The processing apparatus is further configured to generate a surface model of the structure based on the data points. The processing apparatus is further configured to add additional data points to the point cloud formed by the acquired data points, and update the surface model by constructing a surface model based on the added data points.
摘要翻译：提供了用于产生和/或修复表面模型的方法和系统。该方法包括获取对应于结构的表面位置的数据点。所述方法还包括基于所述数据点生成所述结构的表面模型。该方法还包括向由所获取的数据点形成的点云添加附加数据点，并且通过基于添加的数据点构建表面模型来更新模型。该系统包括被配置为获取对应于结构的各个表面位置的数据点的处理装置。处理装置还被配置为基于数据点生成结构的表面模型。处理装置还被配置为将附加数据点添加到由所获取的数据点形成的点云，并且通过基于添加的数据点构建表面模型来更新表面模型。

37. 发明申请

US20120123326A1 CATHETER SYSTEMS WITH DISTAL END FUNCTION, SUCH AS DISTAL DEFLECTION, USING REMOTE ACTUATION OR LOW INPUT FORCE 审中-公开
标题翻译：具有远端功能的导管系统，如远程偏移，使用远程启动或低输入强度
公开(公告)号：US20120123326A1
公开(公告)日：2012-05-17
申请号：US13091552
申请日：2011-04-21
申请人： Steven C. Christian , Jeffrey A. Schweitzer
发明人： Steven C. Christian , Jeffrey A. Schweitzer
IPC分类号： A61M25/092 , A61B18/18
CPC分类号： A61M25/0158 , A61B18/1492 , A61B2017/00323 , A61B2018/00011 , A61B2018/00577 , A61B2218/002 , A61N7/022
摘要： Systems capable of providing force and displacement outputs sufficient to actuate remote mechanisms to enhance catheter capabilities include both low-force and remote actuation arrangements. The remote actuation and low-force actuation systems may be used for catheter distal end deflection, sensor deployment, feedback controlled movement, fluid delivery rate and directional control applications as well as catheter retention mechanism deployment. Remote actuation mechanism may employ phase change based, magnetic based or hydraulic based. Low-force remote actuation structures include a coaxially-extending pull wire, a reaction member, and a remote mechanism responsive to the pull force.
摘要翻译：能够提供足以驱动远程机构以增强导管能力的力和位移输出的系统包括低力和远程致动装置。远程致动和低力致动系统可用于导管远端偏转，传感器部署，反馈控制运动，流体输送速率和方向控制应用以及导管保持机构部署。远程致动机构可以采用基于相变的，基于磁性的或基于液压的。低力远程致动结构包括同轴延伸的拉线，反作用构件和响应于拉力的远程机构。

38. 发明申请

US20120035460A1 MOVABLE MAGNET FOR MAGNETICALLY GUIDED CATHETER 有权
标题翻译：用于磁导管的可变磁铁
公开(公告)号：US20120035460A1
公开(公告)日：2012-02-09
申请号：US12851407
申请日：2010-08-05
申请人： Todd R. Stangenes , Saurav Paul , James V. Kauphusman , Troy T. Tegg , Jeffrey A. Schweitzer
发明人： Todd R. Stangenes , Saurav Paul , James V. Kauphusman , Troy T. Tegg , Jeffrey A. Schweitzer
IPC分类号： A61M25/092 , A61B5/055 , A61B6/12
CPC分类号： A61M25/0127 , A61B5/0422 , A61B5/055 , A61B5/062 , A61B5/6857 , A61B6/12 , A61B6/487 , A61B18/1492 , A61B34/32 , A61B34/73 , A61B2018/00375 , A61B2018/00577 , A61B2018/00791 , A61B2034/301 , A61B2034/303 , A61B2034/731 , A61B2034/732 , A61B2562/0271 , A61M25/0158
摘要： A catheter is disclosed having a flexible tubing with a proximal end and a distal end. The catheter comprising at least one movable magnet provided within the distal end of the flexible tubing. A control mechanism is operable to selectively activate the at least one movable magnet from the proximal end of the flexible tubing. The at least one movable magnet is responsive to an external magnetic field to position and guide the distal end of the flexible tubing within a body of a patient.
摘要翻译：公开了一种具有近端和远端的柔性管的导管。导管包括设置在柔性管的远端内的至少一个可动磁体。控制机构可操作以从柔性管的近端选择性地启动至少一个可动磁体。所述至少一个可移动磁体响应外部磁场来定位和引导患者体内的柔性管的远端。

39. 依法登记的发明

USH1114H Fiber-optic oxygen saturation/hematocrit sensor 失效
公开(公告)号：USH1114H
公开(公告)日：1992-12-01
申请号：US516604
申请日：1990-04-30
申请人： Jeffrey A. Schweitzer , George P. Seifert
发明人： Jeffrey A. Schweitzer , George P. Seifert
IPC分类号： A61B5/00
CPC分类号： A61B5/1459
摘要： A two fiber reflectance oximeter and hematocrit detector and a method of use are disclosed. The tips of the optical fibers employed are beveled at an angle optimized to minimize internal reflections, allowing the use of the fibers to simultaneously perform transmitting and receiving functions.

40. 发明授权

US5047208A Blood gas monitoring sensors 失效
标题翻译：血气监测传感器
公开(公告)号：US5047208A
公开(公告)日：1991-09-10
申请号：US314615
申请日：1989-02-23
申请人： Jeffrey A. Schweitzer , Keith J. Proctor
发明人： Jeffrey A. Schweitzer , Keith J. Proctor
IPC分类号： A61B5/00 , G01N21/77 , G01N21/80 , G01N33/84
CPC分类号： A61B5/145 , A61B5/14539 , G01N21/7703 , G01N33/84 , G01N21/80 , Y10T436/204998
摘要： Colorimetric, fiber optic sensors for measuring pH, PCO.sub.2 and/or other chemical parameters of the blood. The sensors are fabricated using a single optical fiber, which is provided with a chamber at its distal end containing a pH sensitive dye. Located distal to the chamber is a white reflective surface located within 0.04" from the end of the optical fiber, which enhances the performance of the sensor.
摘要翻译：用于测量血液pH，PCO2和/或其他化学参数的比色光纤传感器。传感器使用单个光纤制造，该光纤在其远端设置有包含pH敏感染料的腔室。位于腔室的远侧是位于光纤末端0.04“内的白色反射表面，这增强了传感器的性能。

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