公开(公告)号：US20050061533A1

公开(公告)日：2005-03-24

申请号：US10961962

申请日：2004-10-08

Applicant: Paul Lovoi ,  Peter Smith ,  Alex Lim

Inventor： Paul Lovoi ,  Peter Smith ,  Alex Lim

IPC: A61N5/10 ,  H01J9/04 ,  H01J9/24 ,  H01J35/06 ,  H01J35/32 ,  H01B1/00 ,  H01J35/00 ,  H01J35/22 ,  H02G1/00

CPC classification number: A61N5/1001 ,  A61N5/1002 ,  H01J9/04 ,  H01J9/24 ,  H01J35/06 ,  H01J35/32 ,  H01J2235/02 ,  H01J2235/164

Abstract: In a miniature x-ray tube, which may be on the order of approximately 1 mm in diameter or even less, a high voltage cable is provided in various embodiments for conducting current to the cathode of the x-ray tube and for conducting high voltage to the cathode and anode of the tube. In various embodiments of the cable, two conductors occupy a center region of the cable, packed as closely together as possible, in various shapes that are compact and present as smooth as possible an external shape for maximizing dielectric properties against the exterior high voltage ground, surrounding and generally concentric with the inner conductors. The inner conductors, which carry high voltage in opposition to the outer ground, can be in opposed D shapes, coaxial, two flattened conductors side by side, or simply a pair of cylindrical wires positioned as closely as possible. The space between the inner conductors and the outer ground can be occupied by a glass insulator, polymer, successive layers of polymers and adhesive, air, gas, vacuum or other dielectrics. A partially conductive region can surround the inner conductors.

Abstract translation: 在可以在大约1mm直径甚至更小的数量级的微型x射线管中，在各种实施例中提供高压电缆，用于将电流传导到x射线管的阴极和用于传导高电压 到管的阴极和阳极。 在电缆的各种实施例中，两个导体占据电缆的中心区域，尽可能紧密地包装在各种形状中，其紧凑并呈现尽可能平滑的外部形状，用于使外部高压地面的介电特性最大化， 围绕并且与内部导体大致同心。 承载与外部地面相对的高电压的内部导体可以彼此相对的D形状，同轴的，两个扁平的导体，或简单的一对圆柱形的电线尽可能靠近。 内部导体和外部地面之间的空间可以由玻璃绝缘体，聚合物，连续的聚合物层和粘合剂，空气，气体，真空或其它电介质占据。 部分导电区域可以围绕内部导体。

公开(公告)号：US20050015084A1

公开(公告)日：2005-01-20

申请号：US10909668

申请日：2004-08-02

Applicant: Richard Hill ,  Alex Lim ,  Tim Huynh ,  Eric Chan

Inventor： Richard Hill ,  Alex Lim ,  Tim Huynh ,  Eric Chan

IPC: A61B18/12 ,  A61B18/14

CPC classification number: A61B18/1492 ,  A61B2018/0016 ,  A61B2018/00214 ,  A61B2018/00839 ,  A61B2018/00898 ,  A61B2018/1435 ,  A61B2018/1467

Abstract: An electrophysiology (EP) device suitable for ablating tissue within a patient's body lumen. The EP device of the invention generally comprises an elongated shaft having a distal shaft section with a helical shape and at least one electrode on an exterior portion thereof. One aspect of the invention comprises a method of performing a medical procedure, such as treating a patient for atrial arrhythmia, by forming a lesion using an EP device embodying features of the invention.

公开(公告)号：US07918778B2

公开(公告)日：2011-04-05

申请号：US12074468

申请日：2008-03-03

Applicant: Alex Lim ,  Paul A. Lovoi ,  Heike Hausen ,  Daren L. Stewart

Inventor： Alex Lim ,  Paul A. Lovoi ,  Heike Hausen ,  Daren L. Stewart

IPC: A61N5/00

CPC classification number: A61N5/1016 ,  A61N5/1048 ,  A61N2005/1005

Abstract: A vaginal brachytherapy applicator is versatile to different anatomies and more comfortable to the patient than prior applicators. An inflatable balloon on a shaft may be inelastic or elastic. In one embodiment the shaft is rotatable relative to the balloon for enabling a ring or band of dose delivery, for versatility in radiation placement. Alternatively, the source can be rotated and pulled back within a stationary shaft. An adjustment is provided for reducing the length of balloon that inflates, to accommodate different anatomies and positions. Although isotope radiation sources can be used in the applicator, an electronic source is preferred, and the system and method include procedures for using the applicator with an electronic source.

Abstract translation: 阴道近距离放射治疗仪对于不同的解剖结构是多功能的，对于患者而言比以前的给药者更舒适。 轴上的可膨胀气球可能是无弹性的或弹性的。 在一个实施例中，轴可相对于球囊旋转，以实现用于辐射放置的多功能性的剂量递送环或带。 或者，源可以在固定轴内旋转和拉回。 提供了一种减小气囊膨胀长度的调整，以适应不同的解剖结构和位置。 虽然同位素辐射源可以用于施用器中，但是电子源是优选的，并且该系统和方法包括使用具有电子源的施加器的程序。

公开(公告)号：US07783006B2

公开(公告)日：2010-08-24

申请号：US10962247

申请日：2004-10-08

Applicant: Daren L. Stewart ,  Paul A. Lovoi ,  Thomas W. Rusch ,  Alex Lim ,  Darius Francescatti

Inventor： Daren L. Stewart ,  Paul A. Lovoi ,  Thomas W. Rusch ,  Alex Lim ,  Darius Francescatti

IPC: G21K5/00

CPC classification number: A61N5/1015 ,  A61B90/39 ,  A61B2017/22051 ,  A61B2090/3933 ,  A61N2005/1003 ,  A61N2005/1061

Abstract: Methods and apparatus are described for irradiating living tissue via a cavity or lumen, using an inflatable balloon applicator. In a preferred embodiment the applicator balloon has a balloon skin with x-ray contrast material in relatively low concentration, so that an outline of the balloon will appear sharply when imaged externally. In another preferred embodiment the balloon catheter has a drain for withdrawing liquids from the cavity, which may include channels or texture on the exterior of the balloon. Methods are described for using a switchable miniature x-ray tube, variable as to voltage and current, to achieve accuracy in an isodose profile.

Abstract translation: 描述了用于通过空腔或内腔照射活组织的方法和装置，使用可充气球囊施放器。 在优选实施例中，施放器气球具有具有相对较低浓度的x射线造影材料的气球皮肤，使得当从外部成像时气球的轮廓将显现出明显。 在另一个优选实施例中，球囊导管具有用于从空腔抽出液体的排水口，其可以包括气囊外部上的通道或纹理。 描述了使用可变形的微型X射线管的方法，其可变电压和电流，以获得等剂量曲线的精度。

公开(公告)号：US07338430B2

公开(公告)日：2008-03-04

申请号：US11323346

申请日：2005-12-30

Applicant: Alex Lim ,  Paul A. Lovoi ,  Heike Hausen ,  Daren L. Stewart

Inventor： Alex Lim ,  Paul A. Lovoi ,  Heike Hausen ,  Daren L. Stewart

IPC: A61M36/00

CPC classification number: A61N5/1016 ,  A61N5/1048 ,  A61N2005/1005

Abstract: A vaginal brachytherapy applicator is versatile to different anatomies and more comfortable to the patient than prior applicators. An inflatable balloon on a shaft may be inelastic or elastic. In one embodiment the shaft is rotatable relative to the balloon for enabling a ring or band of dose delivery, for versatility in radiation placement. Alternatively, the source can be rotated and pulled back within a stationary shaft. An adjustment is provided for reducing the length of balloon that inflates, to accommodate different anatomies and positions. Although isotope radiation sources can be used in the applicator, an electronic source is preferred, and the system and method include procedures for using the applicator with an electronic source.

公开(公告)号：US20060173235A1

公开(公告)日：2006-08-03

申请号：US11323346

申请日：2005-12-30

Applicant: Alex Lim ,  Paul Lovoi ,  Heike Hausen ,  Daren Stewart

Inventor： Alex Lim ,  Paul Lovoi ,  Heike Hausen ,  Daren Stewart

IPC: A61N5/00

CPC classification number: A61N5/1016 ,  A61N5/1048 ,  A61N2005/1005

Abstract: A vaginal brachytherapy applicator is versatile to different anatomies and more comfortable to the patient than prior applicators. An inflatable balloon on a shaft may be inelastic or elastic. In one embodiment the shaft is rotatable relative to the balloon for enabling a ring or band of dose delivery, for versatility in radiation placement. Alternatively, the source can be rotated and pulled back within a stationary shaft. An adjustment is provided for reducing the length of balloon that inflates, to accommodate different anatomies and positions. Although isotope radiation sources can be used in the applicator, an electronic source is preferred, and the system and method include procedures for using the applicator with an electronic source.

Abstract translation: 阴道近距离放射治疗仪对于不同的解剖结构是多功能的，对于患者而言比以前的给药者更舒适。 轴上的可膨胀气球可能是无弹性的或弹性的。 在一个实施例中，轴可相对于球囊旋转，以实现用于辐射放置的多功能性的剂量递送环或带。 或者，源可以在固定轴内旋转和拉回。 提供了一种减小气囊膨胀长度的调整，以适应不同的解剖结构和位置。 虽然同位素辐射源可以用于施用器中，但是电子源是优选的，并且该系统和方法包括使用具有电子源的施加器的程序。