公开(公告)号：US20020111548A1

公开(公告)日：2002-08-15

申请号：US09993826

申请日：2001-11-05

Applicant: EP Technologies, Inc.

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

IPC: A61B005/00

CPC classification number: A61B8/12 ,  A61B5/0066 ,  A61B5/0084 ,  A61B5/042 ,  A61B5/4836 ,  A61B5/6852 ,  A61B5/6859 ,  A61B5/7285 ,  A61B6/541 ,  A61B8/445 ,  A61B8/54 ,  A61B8/543

Abstract: A catheter tube carries an imaging element for visualizing tissue. The catheter tube also carries a support structure, which extends beyond the imaging element for contacting surrounding tissue away from the imaging element. The support element stabilizes the imaging element, while the imaging element visualizes tissue in the interior body region. The support structure also carries a diagnostic or therapeutic component to contact surrounding tissue.

Abstract translation: 导管管携带用于使组织可视化的成像元件。 导管还具有延伸超过成像元件的支撑结构，用于使周围组织远离成像元件。 支撑元件稳定成像元件，而成像元件可视化内部身体区域中的组织。 支撑结构还携带用于接触周围组织的诊断或治疗部件。

公开(公告)号：EP0975386A1

公开(公告)日：2000-02-02

申请号：EP97944275.3

申请日：1997-01-17

Applicant: EP Technologies, Inc.

Inventor： SWANSON, David, K. ,  PANESCU, Dorin ,  WHAYNE, James, G. ,  OWENS, Patrick, M. ,  FLEISCHMAN, Sidney, D. ,  THOMPSON, Russell, B. ,  JACKSON, Jerome

IPC: A61N1/05 ,  A61B17/39

CPC classification number: A61B18/1492 ,  A61B2018/00065 ,  A61B2018/00083 ,  A61B2018/00095 ,  A61B2018/00113 ,  A61B2018/00148 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00267 ,  A61B2018/00761 ,  A61B2018/00839 ,  A61B2018/00886 ,  A61B2018/1253 ,  A61B2018/1467 ,  A61B2018/1472 ,  A61B2218/002

Abstract: A method is provided for detaching a single-crystal film (32) from an epilayer/substrate crystal structure (30) or bulk crystal structure (10B). The method includes the steps of implanting ions (38) into the crystal structure to form a damage layer (36) within the crystal structure at an implantation depth below a top surface of the crystal structure, and chemically etching the damage layer to effect detachment of the single crystal film from the crystal structure. The method of the present invention is especially useful for detaching single-crystal metal oxide films from metal oxide crystal structures.

公开(公告)号：EP0957794A1

公开(公告)日：1999-11-24

申请号：EP97952429.0

申请日：1997-12-11

Applicant: EP Technologies, Inc.

Inventor： WHAYNE, James, G.

IPC: A61B18 ,  A61F2 ,  A61M25

CPC classification number: A61B18/1492 ,  A61B2018/00011 ,  A61B2018/00065 ,  A61B2018/00797 ,  A61B2018/00815 ,  A61B2018/00821 ,  A61B2018/1407 ,  A61B2018/1425 ,  A61B2218/002 ,  A61M25/0144 ,  A61M25/0147 ,  A61M2025/0163

Abstract: A catheter assembly comprises a first branch (44) having a first axis, a second branch (32) extending in a non-parallel relationship with respect to the first axis and at least one electrode (28) carried by the second branch body (32). In use, the first branch body (44) can be located within a pulmonary vein within the left atrium, while the electrode (28) carried by the second branch body (32) is located in contact with endocardial tissue outside the pulmonary vein. Ablation energy can be transmitted from the electrode (28) to contacted endocardial tissue while the first branch (44) body is located within the pulmonary vein.

公开(公告)号：EP0835634A1

公开(公告)日：1998-04-15

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

Abstract: Systems and related methods guide a movable electrode (36) within an array of multiple electrodes (24) located within the body. The systems and methods employ the movable electrode (36) or at least one of the multiple electrodes (24) on the array to generate and then sense electrical or sonic energy in a predetermined fashion to generate an output that locates the movable electrode (36) within the array.

Abstract translation: 系统和相关方法引导阵列内的可动电极（36），位于所述主体内的多个电极（24）的。 该系统和方法采用的阵列上的可动电极（36）或多个电极中的至少一个（24），以产生并随后以预定的方式感测的电或声能在输出处产生并定位在可动电极（36） 在阵列内。

公开(公告)号：EP0823842A2

公开(公告)日：1998-02-18

申请号：EP96914564.0

申请日：1996-04-30

Applicant: EP TECHNOLOGIES, INC.

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

IPC: G01K7 ,  A61B5 ,  A61B18 ,  A61N1 ,  G01K13 ,  A61B17

CPC classification number: A61N1/06 ,  A61B18/1206 ,  A61B18/1492 ,  A61B2017/00084 ,  A61B2017/00243 ,  A61B2018/00023 ,  A61B2018/00029 ,  A61B2018/00083 ,  A61B2018/00095 ,  A61B2018/0069 ,  A61B2018/00761 ,  A61B2018/00791 ,  A61B2018/00815 ,  A61B2018/00886 ,  A61B2018/126 ,  A61B2018/1425 ,  A61B2018/1435 ,  A61B2018/1861 ,  A61M2230/50 ,  A61N1/403

Abstract: Systems and associated methods for ablating body tissue employ an electrode (16) for contacting tissue to form a tissue electrode interface. The electrode is adapted to be connected to a source of ablation energy (12) to conduct ablation energy for transmission by the electrode into tissue at the tissue electrode interface. The systems and methods also include an element to cool the electrode (50, 56). The systems and methods hold a tissue temperature sensing element in a carrier in thermal conductive contact with tissue beneath the tissue electrode interface. The systems and methods include a controller that is coupled to the tissue temperature sensing element to control either the supply of ablation energy (98), or the rate at which the electrode is cooled (92, 95), or both, based at least in part upon temperature senses by the temperature sensing element.

公开(公告)号：EP0689397A1

公开(公告)日：1996-01-03

申请号：EP94911602.0

申请日：1994-03-15

Applicant: EP TECHNOLOGIES, INC.

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

IPC: A61B5 ,  A61B18

CPC classification number: A61B5/6858 ,  A61B5/0422 ,  A61B18/1492 ,  A61B2018/00267 ,  A61B2018/1407 ,  A61B2018/1435 ,  A61B2562/0209 ,  A61B2562/043

Abstract: An electrode support structure has spline elements (22) radiating from a center hub (90) in a circumferentially spaced relationship. The spline elements (22) include terminal ends spaced from the hub which are joined to a base member (62) to form a three-dimensional structure for supporting electrodes (38). The center hub (90) lies essentially within the envelope of the spline elements (22) to present a surface free of projections that can poke into and cause tissue trauma during use.

公开(公告)号：EP0566726A1

公开(公告)日：1993-10-27

申请号：EP92924321.0

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 ,  A61B2017/00101 ,  A61B2018/00672 ,  A61B2018/00678 ,  A61B2018/00702 ,  A61B2018/00779 ,  A61B2018/00827 ,  A61B2018/00869 ,  A61B2018/00875 ,  A61B2018/00892

Abstract: Des systèmes (10) servant à effectuer l'ablation de tissus mesurent le courant et la tension alimentant l'ensemble électrode associé (16), et génèrent des signaux représentant le courant et la tension mesurés. Ces systèmes (10) divisent le signal de tension mesurée par le signal de courant mesuré afin d'obtenir un signal d'impédance de tissu mesurée. Ces systèmes (10) effectuent également des fonctions de commande basées sur le signal d'impedance mesurée.

公开(公告)号：EP0513224A4

公开(公告)日：1993-09-15

申请号：EP91904670

申请日：1991-01-31

Applicant: EP TECHNOLOGIES, INC.

Inventor： LUNDQUIST, INGEMAR ,  THOMPSON, RUSSELL, BLAKE

IPC: A61B1/00 ,  A61M25/01 ,  A61M37/00

CPC classification number: A61M25/0144 ,  A61B2018/00916 ,  A61B2018/00952 ,  A61M25/0136 ,  A61M25/0147 ,  A61M2025/0161

Abstract: A steering mechanism (315) including a steering shaft (320) coupled to a controller (410) which includes a handle (540) and apparatus for manipulating the distal end (340) of the steering shaft. The steering shaft includes a flexible coiled spring (170) having a lead spring (350) fixed in position with respect to a distal end thereof in the distal end of the steering shaft. One or more steering wires (360, 370) is affixed at the distal ends thereof to the lead spring. The steering wires extend through the steering shaft to the controller, and the steering apparatus of the controller is used to place tension on one or both of the steering wires. The attachment of the distal ends of the steering wires to the lead spring may be opposite one another or may be offset for providing greater maneuverability. Tension may be placed on the steering wires by wedges (650, 660) mounted transversely to the controller housing, or by rotation of a shaft (450) mounted transversely to the controller housing, the steering wires being attached to the shaft such that rotation in one direction tenses one steering wire, and rotation in the other direction tenses the other steering wire. Two independently rotatable shafts (1560, 1590) may be used to separately control the two steering wires. The steering shaft is adapted for insertion into a lumen (45) of a catheter (40) for use in guiding the distal end of the catheter to a treatment site within a patient. The steering mechanism may also be used in conjunction with tools or apparatus which must reach into difficult locations, such as engines or other machines.

公开(公告)号：EP0426736A4

公开(公告)日：1991-11-21

申请号：EP89908759

申请日：1989-07-27

Applicant: EP TECHNOLOGIES, INC.

Inventor： FRANZ, MICHAEL VA MEDICAL CENTER ,  LUNDQUIST, INGEMAR

IPC: A61B5/0402 ,  A61B5/042 ,  A61B5/0452 ,  A61B5/04

CPC classification number: A61B5/6855 ,  A61B5/042 ,  A61B5/0452 ,  A61B2562/0209 ,  A61B2562/046

Abstract: The apparatus comprises a probe (60) having a tip portion (64), a first electrode (72) mounted on a terminal free end of the tip portion and a second electrode (74) spaced along the tip portion from the first electrode for supplying a reference potential. The probe is constructed so as to hold the first electrode in contact with tissue of an in vivo beating heart with a positive pressure without causing macroscopic damage to the heart tissue while orienting the probe such that the second electrode is spaced from the heart tissue. A stylet (66) is retractably mounted within the probe, for allowing a physician to maneuver the probe through a vein or the like. In an alternative embodiment, a combination catheter (200) is disclosed, including pacing electrodes (215, 225) for pacing the heart while measuring the potentials thereof.

公开(公告)号：EP0426736A1

公开(公告)日：1991-05-15

申请号：EP89908759.0

申请日：1989-07-27

Applicant: EP TECHNOLOGIES, INC.

Inventor： FRANZ, Michael ,  LUNDQUIST, Ingemar

IPC: A61B5

CPC classification number: A61B5/6855 ,  A61B5/042 ,  A61B5/0452 ,  A61B2562/0209 ,  A61B2562/046

Abstract: Un appareil comprend une sonde (60) avec une pointe (64), une première électrode (72) montée sur une extrémité terminale libre de la pointe et une deuxième électrode (74) située également sur la pointe, à une certaine distance de la première électrode, afin de fournir un potentiel de référence. La sonde maintient la première électrode en contact avec le tissu d'un coeur vivant en train de battre, sous une pression positive, sans causer des dommages macroscopiques aux tissus du coeur, tout en étant orientée de sorte que la deuxième électrode soit écartée du tissu du coeur. Un stylet (66) monté de manière escamotable à l'intérieur de la sonde permet à un médecin de guider la sonde à travers une veine ou similaire. Dans un autre mode de réalisation, un cathéter composite (200) comprend des électrodes stimulatrices (215, 225) qui stimulent le coeur en même temps qu'elles mesurent ses potentiels.