Balloon catheter and fluid management system thereof

    公开(公告)号:US11484692B2

    公开(公告)日:2022-11-01

    申请号:US17024269

    申请日:2020-09-17

    申请人: CardioFocus, Inc.

    IPC分类号: A61M25/10

    摘要: A method for maintaining a balloon of a balloon catheter at a prescribed pressure of between about 0.2 psi and 1 psi comprises the step of: generating a vacuum within a reservoir defined in a burette that is part of a fluid management system that is configured to controllably inflating and deflating the balloon by circulating balloon fill media along a fluid circuit, wherein generating the vacuum results in formation of a pressure differential along the fluid circuit, thereby allowing the balloon to be maintained at the prescribed pressure between about 0.2 psi and about 1 psi.

    ABLATION SYSTEM WITH AUTOMATED ABLATION ENERGY ELEMENT

    公开(公告)号:US20220296297A1

    公开(公告)日:2022-09-22

    申请号:US17837734

    申请日:2022-06-10

    申请人: CardioFocus, Inc.

    IPC分类号: A61B18/18 A61B18/24 A61B17/32

    摘要: An ablation instrument (e.g., an ablation balloon catheter system) includes an elongate catheter having a housing with a window formed therein. An energy emitter is coupled to the elongate catheter and is configured to deliver ablative energy. A controller is received within the window and is coupled to the energy emitter such that axial movement of the controller within the window is translated to axial movement of the energy emitter and rotation of the controller within the window is translated into rotation of the energy emitter. The instrument includes a motor that is at least partially disposed within the housing of the catheter; a first gear that is operatively connected to and driven by the motor; and a second gear that is coupled to the energy emitter and is driven by the first gear to cause rotation of the energy emitter, while allowing the energy emitter to move axially.

    BALLOON CATHETER AND FLUID MANAGEMENT SYSTEM THEREOF

    公开(公告)号:US20210069479A1

    公开(公告)日:2021-03-11

    申请号:US17024269

    申请日:2020-09-17

    申请人: CardioFocus, Inc.

    IPC分类号: A61M25/10

    摘要: A method for maintaining a balloon of a balloon catheter at a prescribed pressure of between about 0.2 psi and 1 psi comprises the step of: generating a vacuum within a reservoir defined in a burette that is part of a fluid management system that is configured to controllably inflating and deflating the balloon by circulating balloon fill media along a fluid circuit, wherein generating the vacuum results in formation of a pressure differential along the fluid circuit, thereby allowing the balloon to be maintained at the prescribed pressure between about 0.2 psi and about 1 psi.