公开(公告)号：US20110313417A1

公开(公告)日：2011-12-22

申请号：US13159446

申请日：2011-06-14

Applicant: Alan De La Rama ,  Cary HATA

Inventor： Alan De La Rama ,  Cary HATA

IPC: A61B18/14

CPC classification number: A61M25/0052 ,  A61B18/1492 ,  A61B2018/00404 ,  A61B2018/00434 ,  A61B2018/00511 ,  A61B2018/00821 ,  A61B2018/00869 ,  A61B2018/00875 ,  A61B2018/1407

Abstract: A catheter apparatus comprises an elongated catheter body having a distal end, a proximal end, and at least one fluid lumen extending longitudinally therein; and a plurality of flexible electrode segments on a distal portion of the catheter body adjacent the distal end, each pair of neighboring flexible electrode segments being spaced from each other longitudinally by a corresponding electrically nonconductive segment. Each flexible electrode segment comprises a sidewall provided with one or more elongated stiffness reductions extending through the sidewall, the one or more elongated stiffness reductions providing flexibility in the sidewall for bending movement relative to a longitudinal axis of the catheter body. The electrically nonconductive segment is substantially smaller in length than each of the corresponding pair of neighboring flexible electrode segments.

Abstract translation: 导管装置包括细长的导管主体，其具有远端，近端和至少一个在其中纵向延伸的流体腔; 以及多个柔性电极段，其在导管本体的远端附近的远侧部分上，每对相邻的柔性电极段通过相应的非导电段彼此间隔开。 每个柔性电极段包括设置有延伸穿过侧壁的一个或多个细长刚度降低的侧壁，所述一个或多个细长刚度减小件在侧壁中提供相对于导管主体的纵向轴线的弯曲运动的柔性。 电非导电段的长度比相应的一对相邻柔性电极段的长度短得多。

公开(公告)号：US20110282424A1

公开(公告)日：2011-11-17

申请号：US13099605

申请日：2011-05-03

Applicant: Alan DE LA RAMA ,  Peter C. CHEN

Inventor： Alan DE LA RAMA ,  Peter C. CHEN

IPC: A61N1/04

CPC classification number: A61N1/0558

Abstract: A lead includes an elongated body and an anchor segment disposed between the distal end of the body and electrodes on a distal portion of the body. The anchor segment has lobes which are separated by slits and movable between a collapsed position and an expanded position. A positioning mechanism is disposed inside the hollow interior of the body and at least partially within the anchor segment. The positioning mechanism has a distal positioning portion attached to the distal end of the body and a proximal positioning portion. A control member is connected with the proximal positioning portion to control the positioning mechanism to pull the distal end toward the proximal end so as to move the lobes from the collapsed position to the expanded position and to push the distal end away from the proximal end so as to move the lobes from the expanded to the collapsed position.

Abstract translation: 引线包括细长主体和设置在主体的远端之间的主体部分和主体的远侧部分上的电极。 锚节段具有由狭缝分开并在折叠位置和展开位置之间移动的凸角。 定位机构设置在身体的中空内部内部，并且至少部分地在锚定段内。 定位机构具有附接到主体的远端的远侧定位部分和近端定位部分。 控制构件与近端定位部分连接以控制定位机构将远端朝向近端拉动，以便将凸起从折叠位置移动到扩张位置，并将远端远离近端推动，从而 以将波瓣从展开位置移动到折叠位置。

公开(公告)号：US20110230797A1

公开(公告)日：2011-09-22

申请号：US13090832

申请日：2011-04-20

Applicant: Peter C. Chen ,  Alan de la Rama ,  Cary K. Hata ,  Vivian Tran

Inventor： Peter C. Chen ,  Alan de la Rama ,  Cary K. Hata ,  Vivian Tran

IPC: A61B18/18 ,  A61B18/14 ,  A61N7/02

CPC classification number: A61B5/4836 ,  A61B5/042 ,  A61B5/0422 ,  A61B5/6853 ,  A61B5/6855 ,  A61B5/6857 ,  A61B17/2202 ,  A61B18/1492 ,  A61B2017/00044 ,  A61B2017/00053 ,  A61B2017/00084 ,  A61B2017/00243 ,  A61B2017/22051 ,  A61N7/022

Abstract: The disclosure relates to a variety of systems and methods for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region. Wherein the system includes a first catheter that has an expandable member, an ablation element, and a lumen configured to allow a second catheter therethrough. The second catheter includes a distal section in a ring shape and a plurality of electrodes coupled around the ring. Optionally a second lumen can be included through the first catheter that allows for contrast media to be delivered to the distal end of the system.

Abstract translation: 本公开涉及用于感测关于心脏的所选环区的电事件并用于治疗所选择的环区中的组织的各种系统和方法。 其中系统包括具有可扩张构件，消融元件和构造成允许第二导管穿过其中的内腔的第一导管。 第二导管包括环形的远侧部分和围绕环耦合的多个电极。 可选地，可以通过第一导管包括允许将造影剂输送到系统的远端的第二腔。

公开(公告)号：US20100152731A1

公开(公告)日：2010-06-17

申请号：US12651074

申请日：2009-12-31

Applicant: Alan de la Rama ,  Cary Hata ,  William Du ,  Yongxing Zhang

Inventor： Alan de la Rama ,  Cary Hata ,  William Du ,  Yongxing Zhang

IPC: A61B18/14 ,  A61M25/00 ,  A61M25/088

CPC classification number: A61M25/007 ,  A61B5/04 ,  A61B18/1492 ,  A61B2018/00011 ,  A61B2018/00101 ,  A61B2018/00577 ,  A61B2018/00821 ,  A61B2018/00839 ,  A61B2018/1465 ,  A61B2218/002 ,  A61M25/0026 ,  A61M25/0074 ,  A61M25/008 ,  A61M25/0082 ,  A61M2025/1047

Abstract: A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.

Abstract translation: 为具有导管主体和连接到导管主体的细长电极的导管提供管腔延伸构件。 细长电极限定延伸穿过其中的电极腔。 内腔延伸构件定位在电极内腔内并且联接到导管主体。 管腔延伸构件包括管状构件，其包括侧壁和延伸穿过侧壁的至少一个开口。

公开(公告)号：US20100041986A1

公开(公告)日：2010-02-18

申请号：US12508000

申请日：2009-07-23

Applicant: Tho Hoang NGUYEN ,  Peter C. CHEN ,  Alan DE LA RAMA ,  Yu LIU

Inventor： Tho Hoang NGUYEN ,  Peter C. CHEN ,  Alan DE LA RAMA ,  Yu LIU

IPC: A61B6/02 ,  A61B18/14

CPC classification number: A61B18/1492 ,  A61B1/015 ,  A61B5/0066 ,  A61B5/0084 ,  A61B5/6852 ,  A61B18/1206 ,  A61B2018/00029 ,  A61B2018/00351 ,  A61B2018/00791 ,  A61B2018/0088 ,  A61B2018/00982 ,  A61B2090/064 ,  A61B2090/065 ,  A61B2218/002

Abstract: An ablation and monitoring system comprises a catheter, an optical coherence tomography (OCT) system, and an ablation generator. The catheter comprises one or more optical fibers to transmit a light beam to a tissue material and collect a reflected light from the tissue material. The OCT system is in optical communication with the catheter via the one or more optical fibers, providing the light beam to the one or more optical fibers and receiving the reflected light from the one or more optical fibers. The ablation generator is in electrical communication with the OCT system and with the catheter. The ablation generator provides radio frequency energy to the catheter for ablating the tissue material, monitors and assesses the ablation based on an information signal received from the OCT system.

Abstract translation: 消融和监测系统包括导管，光学相干断层扫描（OCT）系统和消融发生器。 导管包括一个或多个光纤，以将光束透射到组织材料并收集来自组织材料的反射光。 OCT系统经由一个或多个光纤与导管光学通信，将光束提供给一个或多个光纤并且接收来自一个或多个光纤的反射光。 消融发生器与OCT系统和导管电连通。 消融发生器为导管提供射频能量，用于烧蚀组织材料，根据从OCT系统接收的信息信号监测和评估消融。

公开(公告)号：US5782900A

公开(公告)日：1998-07-21

申请号：US880837

申请日：1997-06-23

Applicant: Alan de la Rama ,  Weng-Kwen Raymond Chia ,  Hosheng Tu

Inventor： Alan de la Rama ,  Weng-Kwen Raymond Chia ,  Hosheng Tu

IPC: A61B18/14 ,  A61N1/05 ,  A61N1/06

CPC classification number: A61N1/06 ,  A61B18/1492 ,  A61N1/056 ,  A61B2017/003 ,  A61B2017/00473 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/00791 ,  A61B2018/00839

Abstract: A catheter system suitable for electrophysiology mapping and radiofrequency ablation of cardiac tissue comprises a catheter shaft having a distal end, a proximal handle, and at least a lumen extending therebetween, wherein a distal section of the shaft is either a fixed curve or deflectable; and safety anchoring means being provided to maintain the integrity of the catheter by holding the tip electrode in place. In one embodiment, the safety means is a tip electrode with safety anchoring pins. In another embodiment, the safety means is a tip electrode with extended flexible stem having open slots on said stem.

Abstract translation: 适用于心脏组织的电生理学测绘和射频消融的导管系统包括导管轴，其具有远端，近端手柄和至少延伸在其间的内腔，其中所述轴的远端部分是固定曲线或可偏转的; 并且提供安全锚固装置以通过将尖端电极保持在适当位置来维持导管的完整性。 在一个实施例中，安全装置是具有安全锚定销的尖端电极。 在另一个实施例中，安全装置是具有延伸的柔性杆的尖端电极，其在所述杆上具有开口槽。