公开(公告)号：US5944602A

公开(公告)日：1999-08-31

申请号：US925919

申请日：1997-09-09

Applicant: David A. Grundy

Inventor： David A. Grundy

IPC: F24F3/16 ,  H01L21/677

CPC classification number: F24F3/161 ,  H01L21/67017 ,  H01L21/67724 ,  Y10T16/53613

Abstract: A portable cleanroom cabinet (20) having a portable cabinet device (22), configured for mobile transport, which provides a cavity (23) formed for receipt of at least one electronic component (21) therein. The cabinet device (22) defines at least one air flow passage (32) having a first opening (33) in flow communication with an upstream end (29) of the cavity (23), and a second opening (35) in flow communication with an opposite downstream end (36) of the cavity (23). Collectively, these passages and cavities define a recirculating airflow pathway such that substantially all the air flowing through the cavity (23) from the upstream end (29) to the downstream end (36) thereof recirculates back through the air flow passage (32) to the upstream end (29). A blower assembly (30) is provided communicably coupled to the recirculating airflow pathway to drive the recirculating air flow, and a filter element (31) positioned in the recirculating airflow path such that the recirculating air flows through the filter element (31) prior to entering the cavity (23). The flow of recirculating air through the cavity (23) from the upstream end (29) to the downstream end (36) is substantially evenly distributed across a transverse cross-sectional dimension thereof.

Abstract translation: 一种便携式洁净室（20），其具有便携式机柜装置（22），其构造成用于移动式运输，其提供形成用于在其中容纳至少一个电子部件（21）的空腔（23）。 所述柜装置（22）限定至少一个具有与所述空腔（23）的上游端（29）流动连通的第一开口（33）的空气流动通道（32）和与所述空腔（23）的流动连通的第二开口（35） 具有腔（23）的相对的下游端（36）。 总的来说，这些通道和空腔限定了循环气流路径，使得从上游端（29）到下游端（36）的流过空腔（23）的基本上所有的空气通过空气流动通道（32）再循环回到 上游端（29）。 鼓风机组件（30）可通信地联接到再循环气流通道以驱动再循环空气流;以及过滤元件（31），其定位在再循环气流路径中，使得再循环空气流过过滤元件（31） 进入空腔（23）。 通过空腔（23）从上游端（29）到下游端（36）的再循环空气的流动基本上均匀分布在其横截面尺寸上。

公开(公告)号：US5405346A

公开(公告)日：1995-04-11

申请号：US163178

申请日：1993-12-03

Applicant: David A. Grundy ,  Glen G. Warner ,  R. Hardwin Mead

Inventor： David A. Grundy ,  Glen G. Warner ,  R. Hardwin Mead

IPC: A61B17/00 ,  A61B18/12 ,  A61B18/14 ,  A61B18/18 ,  A61B17/39

CPC classification number: A61B18/18 ,  A61B18/1206 ,  A61B18/1492 ,  A61B18/1815 ,  A61B2017/00084 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/00702 ,  A61B2018/00785 ,  A61B2018/00839 ,  A61B2018/00875 ,  A61B2018/1253 ,  A61B2018/126 ,  A61B2018/1495 ,  A61B2018/1846 ,  A61B2090/064

Abstract: An ablation catheter is disclosed that include a mechanism for altering the impedance of the antenna during use in a controlled manner to tune the catheter. The impedance tuning may be accomplished in a variety of manners including altering the electromechanical configuration of the antenna and moving a material relative to the antenna or vice versa in order to vary the effective impedance during use. In a preferred embodiment, the ablation catheter transmits energy in the microwave frequencies and uses a coaxial transmission line as its waveguide. The antenna is preferably helical in nature and is carried by the distal end of the transmission line.

Abstract translation: 公开了一种消融导管，其包括用于以受控方式改变导管的使用期间改变天线的阻抗的机构。 阻抗调谐可以以各种方式实现，包括改变天线的机电结构并相对于天线移动材料，反之亦然，以便在使用期间改变有效阻抗。 在优选实施例中，消融导管传播微波频率的能量并使用同轴传输线作为其波导。 天线优选地是螺旋形的，并且由传输线的远端承载。

公开(公告)号：US5603697A

公开(公告)日：1997-02-18

申请号：US388373

申请日：1995-02-14

Applicant: David A. Grundy ,  Brian M. Packard ,  Glen G. Warner

Inventor： David A. Grundy ,  Brian M. Packard ,  Glen G. Warner

IPC: A61B18/18 ,  A61M25/01 ,  A61M37/00

CPC classification number: A61M25/0144 ,  A61B18/18 ,  A61B18/1815 ,  A61M25/0136 ,  A61M25/0147 ,  A61B2018/1861 ,  A61M2025/015

Abstract: A medical catheter steering construction is described that is particularly well suited for steering ablation catheters that utilize coaxial transmission lines. An elongated coaxial transmission line is received within a lumen in the flexible tubular member. An antenna is coupled to the center conductor of the coaxial transmission line. A shield termination is secured to the shield portion of the coaxial transmission line. A steering wire that extends through the tubular member to permit a user to steer the catheter during insertion is attached to the shield termination. With this arrangement, when the catheter is inserted into the vessel of a patient, the tip of the catheter may be steered by pulling on the steering wire. In one embodiment of the invention, a distal portion of the tubular member has a stiffness that is significantly less than the stiffness of the majority of the tubular member to facilitate bending during steering. Suitable methods for making such catheters are also described.

Abstract translation: 描述了特别适用于利用同轴传输线的转向消融导管的医疗导管转向结构。 细长的同轴传输线被容纳在柔性管状构件的内腔内。 天线耦合到同轴传输线的中心导体。 屏蔽终端固定到同轴传输线的屏蔽部分。 延伸穿过管状构件以允许使用者在插入期间引导导管的操纵线被附接到屏蔽端接件。 利用这种布置，当导管插入到患者的血管中时，可以通过拉动导向线来导引导管的尖端。 在本发明的一个实施例中，管状构件的远侧部分的刚度明显小于管状构件的大部分刚度，以便于在转向期间弯曲。 还描述了制造这种导管的合适方法。

公开(公告)号：US5364392A

公开(公告)日：1994-11-15

申请号：US62637

申请日：1993-05-14

Applicant: Glen G. Warner ,  David A. Grundy

Inventor： Glen G. Warner ,  David A. Grundy

IPC: A61B18/12 ,  A61B18/14 ,  A61B18/18 ,  A61B17/39

CPC classification number: A61B18/18 ,  A61B18/1206 ,  A61B18/1492 ,  A61B18/1815 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/00702 ,  A61B2018/00785 ,  A61B2018/00839 ,  A61B2018/00875 ,  A61B2018/1253 ,  A61B2018/126 ,  A61B2018/1495 ,  A61B2018/1846 ,  A61B2018/1861 ,  A61B2090/064

Abstract: A tuner system for a microwave power supply used in an ablation catheter system is disclosed. The tuner system includes a tuner arranged to facilitate matching the impedance of a power generator side portion of the catheter system with the impedance of a catheter side portion of the catheter system. A reflected power monitor is also provided for monitoring the amount of power that is reflected from the catheter during use. In a preferred aspect of the invention, the tuner is used in a power supply that includes a microwave power source and is used in conjunction with a catheter having a coaxial transmission line and a helical antenna. In a method aspect of the invention, a method for medical treatment using a microwave ablation catheter system is disclosed.

Abstract translation: 公开了一种用于消融导管系统中的微波电源的调谐器系统。 调谐器系统包括调谐器，其被布置成便于使导管系统的发电机侧部分的阻抗与导管系统的导管侧部分的阻抗匹配。 还提供反射功率监视器，用于监视在使用期间从导管反射的功率的量。 在本发明的优选方面，调谐器用于包括微波功率源的电源中，并且与具有同轴传输线和螺旋天线的导管结合使用。 在本发明的方法方面，公开了一种使用微波消融导管系统的医疗处理方法。