公开(公告)号：EP0835634B1

公开(公告)日：2000-06-14

申请号：EP96307430.7

申请日：1996-10-11

Applicant: EP TECHNOLOGIES, INC.

Inventor： Swanson, David K. ,  Panescu, Dorin ,  Whayne, James G.

IPC: A61B5/042 ,  A61B8/12

CPC classification number: A61B5/6858 ,  A61B5/0422 ,  A61B5/7217 ,  A61B8/12 ,  A61B8/4461 ,  A61B18/1492 ,  A61B18/1815 ,  A61B2017/003 ,  A61B2018/0016 ,  A61B2018/00214 ,  A61B2018/0075 ,  A61B2018/00755 ,  A61B2018/00839 ,  A61B2018/00875 ,  A61B2090/3782 ,  A61B2562/0209 ,  A61B2562/043 ,  A61N1/06

公开(公告)号：EP0991431A2

公开(公告)日：2000-04-12

申请号：EP98929043.2

申请日：1998-06-12

Applicant: EP Technologies, Inc.

Inventor： SWANSON, David, K. ,  YANG, Yi ,  WHAYNE, James, G. ,  KOBLISH, Josef, V.

IPC: A61L2/00

CPC classification number: A61B18/1492 ,  A61B5/0422 ,  A61B5/6858 ,  A61B18/1402 ,  A61B18/1815 ,  A61B2017/00084 ,  A61B2017/00088 ,  A61B2017/00292 ,  A61B2017/003 ,  A61B2017/22061 ,  A61B2018/00065 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00095 ,  A61B2018/00107 ,  A61B2018/00113 ,  A61B2018/00136 ,  A61B2018/00148 ,  A61B2018/0016 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00267 ,  A61B2018/00446 ,  A61B2018/00517 ,  A61B2018/00547 ,  A61B2018/00559 ,  A61B2018/00577 ,  A61B2018/00755 ,  A61B2018/00791 ,  A61B2018/00797 ,  A61B2018/00821 ,  A61B2018/00839 ,  A61B2018/00875 ,  A61B2018/00898 ,  A61B2018/124 ,  A61B2018/1253 ,  A61B2018/126 ,  A61B2018/1435 ,  A61B2018/1472 ,  A61B2018/1861 ,  A61B2090/3614 ,  A61B2218/002 ,  A61L29/085 ,  A61L29/145 ,  A61L31/10 ,  A61L31/145 ,  A61M25/0045 ,  A61N1/056 ,  A61N1/06 ,  A61N1/40 ,  G01K1/026 ,  G01K3/14 ,  C08L1/02 ,  C08L1/22

Abstract: A catheter including a distal end assembly having an external surface coating. Where the distal end assembly includes electrodes or other electrical components, the coating is preferably electrically conductive. Such an electrically conductive coating is formed from a material comprising regenerated cellulose, although other materials such as a hydrogel or a plastic having an electrically conductive component are utilizable. Where the distal end assembly includes optical or ultrasonic components, the regenerated cellulose coating is suitable. The robustness of the surface coating permits the manufacture and utilization of electrode configurations that are formed on a non-conductive base member by processes such as pad printing, vapor deposition, ion beam assisted deposition, electroplating and other printed circuit manufacturing processes. Additionally, because the surface coating produces a smooth outer surface to the distal end assembly, lead wires and temperature sensing devices can be bonded to the exterior surface of electrodes and then coated to produce a smooth outer surface; thus providing a simple, inexpensive manufacturing method for the attachment of such components to the electrodes.

公开(公告)号：EP0955917A1

公开(公告)日：1999-11-17

申请号：EP96939661.0

申请日：1996-11-08

Applicant: EP Technologies, Inc.

Inventor： FLEISCHMAN, Sidney, D. ,  THOMPSON, Russell, B. ,  PANESCU, Dorin ,  SWANSON, David, K.

IPC: A61B5 ,  A61B18 ,  A61N1 ,  G01K1 ,  G01K3 ,  A61B17

CPC classification number: A61B18/1492 ,  A61B5/0422 ,  A61B5/6858 ,  A61B2017/00088 ,  A61B2017/00092 ,  A61B2017/0088 ,  A61B2018/00083 ,  A61B2018/00107 ,  A61B2018/00148 ,  A61B2018/0016 ,  A61B2018/00791 ,  A61B2018/1435 ,  A61N1/056 ,  A61N1/06 ,  A61N1/40 ,  G01K1/026 ,  G01K3/14

Abstract: This invention is devices and methods for ablating body tissue which use wire (44) wound about a support body (12) in adjacent windings to form one or more elongated electrodes. A connection couples the wire to a source of ablation energy for transmission by the elongated electrode to ablate tissue. The adjacent windings are spaced apart to impart enhanced flexibility to the elongated electrode during use.

Abstract translation: 本发明是用于消融身体组织的装置和方法，所述身体组织使用围绕相邻绕组中的支撑体（12）缠绕的线（44）以形成一个或多个细长电极。 连接将导线连接到消融能量源以供细长电极传输以消融组织。 相邻的绕组间隔开以在使用期间赋予细长电极增强的柔性。

公开(公告)号：EP0566724B1

公开(公告)日：1999-05-19

申请号：EP92924299.8

申请日：1992-11-05

Applicant: EP TECHNOLOGIES, INC.

Inventor： EDWARDS, Stuart, D. ,  THOMPSON, Russell, B.

IPC: A61M37/00 ,  A61M25/01

CPC classification number: A61M25/0138 ,  A61M25/0136 ,  A61M25/0144 ,  A61M25/0147 ,  A61M2025/0161 ,  A61N1/0565 ,  A61N1/06

Abstract: A catheter (10) has an electrode tip assembly (16) that is bendable at the selection of the user in two different directions. The electrode tip assembly (16) assumes a different predetermined curve configuration when bent in the two directions.

公开(公告)号：EP0836507A1

公开(公告)日：1998-04-22

申请号：EP96921401.0

申请日：1996-06-07

Applicant: EP TECHNOLOGIES, INC.

Inventor： WHAYNE, James, G. ,  FLEISCHMAN, Sidney, D. ,  SWANSON, David, K. ,  BOURNE, Thomas, M. ,  OWENS, Patrick, M.

IPC: A61B18 ,  A61B17 ,  A61M29

CPC classification number: A61B17/0218 ,  A61B17/00234 ,  A61B17/0469 ,  A61B17/064 ,  A61B17/12013 ,  A61B2017/00243 ,  A61B2017/00349 ,  A61B2017/0443 ,  A61B2017/0464 ,  A61B2017/048 ,  A61B2017/0649 ,  A61B2017/3488

Abstract: Devices and procedures are shown for non-surgically repositioning an atrial appendage (17) using a grasping catheter (40), and for affixing the appendage in the new position, thereby minimizing thrombus formation, especially for patients with atrial fibrillation.

公开(公告)号：EP0801541A1

公开(公告)日：1997-10-22

申请号：EP96942004.0

申请日：1996-11-12

Applicant: EP TECHNOLOGIES, INC.

Inventor： KORDIS, Thomas, F. ,  PANESCU, Dorin ,  WHAYNE, James, G.

IPC: A61B5 ,  A61B18 ,  A61N1

CPC classification number: A61B5/6852 ,  A61B5/0422 ,  A61B5/6858 ,  A61B18/14 ,  A61B18/1492 ,  A61B18/18 ,  A61B2018/00214 ,  A61B2018/00267 ,  A61B2018/00351 ,  A61B2018/00839 ,  A61B2018/1407 ,  A61B2018/1435 ,  A61B2018/1465 ,  A61B2562/0209 ,  A61B2562/043 ,  A61N1/056

Abstract: An electrode support structure comprises a distal hub (48) and a proximal base (12) aligned along a major axis with the distal hub (48). An array of generally flexible spline elements (180) extends between the hub (48) and the base (12). The spline elements (180) each have an elongated axis that, at the base (12), extends generally parallel to the major axis and, at the hub (48), extends at an angle measured relative to the major axis of between 45 degrees and 110 degrees. The spline elements (180) collectively define a distal surface (66) lying within an envelope that approximates the curvature of endocardial tissue and within which envelope the distal hub (48) lies. According to this aspect of the invention, the distal surface (66), when contacting endocardial tissue, increases in surface area in response to force applied generally along the major axis to mediate tissue pressure.

公开(公告)号：EP0792172A1

公开(公告)日：1997-09-03

申请号：EP95937505.0

申请日：1995-10-17

Applicant: EP TECHNOLOGIES, INC.

Inventor： THOMPSON, Russell, B. ,  McGEE, David

IPC: A61M25

CPC classification number: A61M25/00 ,  A61M2025/0008 ,  A61M2205/6063

Abstract: This invention is a catheter assembly (10) which has a distal end adapted for insertion into a living body, and a proximal end adapted to remain external to said body, or a cable for use in such an assembly that includes a cylindrical surface on which is inscribed a plurality of markings (16). Each of the markings indicates one of the specific locations within the living body at which the distal end may be placed during insertion. The markings are positioned at spaced intervals around the circumference of the cylindrical surface. A sleeve (18) is rotatably and/or axially movable around the cylindrical surface, the sleeve being provided with at least one window (20) adapted to be moved into alignment with a selected one of the markings.

Abstract translation: 本发明是一种导管组件（10），其具有适于插入活体中的远端和适于保持在所述本体外部的近端或用于这种组件的电缆，所述电缆包括圆柱形表面，其上 刻有多个标记（16）。 每个标记表示在插入过程中可以放置远端的生命体内的特定位置之一。 标记围绕圆柱形表面的圆周以间隔的间隔定位。 套筒（18）可围绕圆柱形表面旋转和/或轴向移动，该套筒设有至少一个窗口（20），该窗口适于与所选标记之一对齐。

公开(公告)号：EP0741541A1

公开(公告)日：1996-11-13

申请号：EP95910887.0

申请日：1995-01-27

Applicant: EP TECHNOLOGIES, INC.

Inventor： PANESCU, Dorin ,  SWANSON, David K.

IPC: A61B5 ,  A61N1 ,  A61B18

CPC classification number: A61N1/056 ,  A61B5/0422 ,  A61B5/044 ,  A61B5/053 ,  A61B5/0538 ,  A61B5/6855 ,  A61B5/6858 ,  A61B18/00 ,  A61B2562/0209 ,  A61B2562/043 ,  A61N1/36185 ,  A61N1/3686

Abstract: This invention is systems and methods to examine heart tissue morphology using three or more spaced electrodes (38), at least two of which are located within the heart in contact with endocardial tissue. The systems and methods transmit electrical current through a region of heart tissue lying between selected pairs of electrodes (224), at least one of the electrodes in each pair being located within the heart. The systems and methods derive the electrical characteristic of tissue between the electrode pairs (206) based, at least in part, upon sensing tissue impedances.

公开(公告)号：EP0566731A1

公开(公告)日：1993-10-27

申请号：EP92925097.0

申请日：1992-11-05

Applicant: EP TECHNOLOGIES, INC.

Inventor： EDWARDS, Stuart, D. ,  STERN, Roger, A.

IPC: A61B18 ,  A61B17

CPC classification number: A61B18/1206 ,  A61B18/12 ,  A61B18/1492 ,  A61B2017/00101 ,  A61B2017/00292 ,  A61B2018/0066 ,  A61B2018/00702 ,  A61B2018/00755 ,  A61B2018/00767 ,  A61B2018/00779 ,  A61B2018/00791 ,  A61B2018/00797 ,  A61B2018/00815 ,  A61B2018/00827 ,  A61B2018/00869 ,  A61B2018/00875 ,  A61B2018/00892 ,  A61B2018/1253 ,  A61B2018/1467

Abstract: Des systèmes d'ablation de tissus régulent la puissance haute fréquence alimentant une électrode à ablation (16), en se basant sur des mesures (72) de la puissance réelle sensible à la phase, et sans être affectés par des décalages de phase entre le courant et la tension haute fréquence. Les systèmes détectent également ces différences de phase (70), si elles se développent, et intègrent ce facteur (30) dans leurs décisions de commande.

公开(公告)号：EP0792172B1

公开(公告)日：2001-02-28

申请号：EP95937505.6

申请日：1995-10-17

Applicant: EP TECHNOLOGIES, INC.

Inventor： THOMPSON, Russell, B. ,  McGEE, David

IPC: A61M5/00

CPC classification number: A61M25/00 ,  A61M2025/0008 ,  A61M2205/6063

Abstract: This invention is a catheter assembly (10) which has a distal end adapted for insertion into a living body, and a proximal end adapted to remain external to said body, or a cable for use in such an assembly that includes a cylindrical surface on which is inscribed a plurality of markings (16). Each of the markings indicates one of the specific locations within the living body at which the distal end may be placed during insertion. The markings are positioned at spaced intervals around the circumference of the cylindrical surface. A sleeve (18) is rotatably and/or axially movable around the cylindrical surface, the sleeve being provided with at least one window (20) adapted to be moved into alignment with a selected one of the markings.