PHRENIC NERVE STIMULATOR, AND SYSTEM AND METHOD FOR MONITORING PHRENIC NERVE STIMULATION

    公开(公告)号:US20200077938A1

    公开(公告)日:2020-03-12

    申请号:US16685152

    申请日:2019-11-15

    Abstract: A phrenic nerve pacing monitor assembly for a cryogenic balloon catheter system used during a cryoablation procedure, which monitors movement of a diaphragm of a patient, includes a pacing detector and a safety system. The pacing detector directly monitors movement of the diaphragm of the patient to detect when phrenic nerve pacing is occurring. Additionally, the pacing detector generates monitor output based on the movement of the diaphragm of the patient. The safety system receives the monitor output and based at least in part on the monitor output selectively provides an alert when movement of the diaphragm of the patient is atypical. The safety system is configured to provide the alert only while at least one of (i) phrenic nerve pacing is occurring, and (ii) cryoablation is occurring.

    High density mapping catheter for cryoballoon ablation

    公开(公告)号:US12295647B2

    公开(公告)日:2025-05-13

    申请号:US17087177

    申请日:2020-11-02

    Abstract: A mapping catheter comprises a flexible shaft having a proximal end and an opposite distal end, and an expandable mapping element attached to the distal end of the shaft. The expandable mapping element is configured to self-expand from a collapsed configuration to an expanded configuration. The expanded configuration is defined by a proximal portion extending from the distal end of the shaft and forming a proximally-facing concave recess, an intermediate portion extending distally from the proximal portion and defining a maximum diameter of the mapping element when in the expanded configuration, and a distal portion having a conical shape with a distal portion diameter that decreases in a direction distally of the intermediate portion. The mapping element further includes a plurality of electrodes located in one or both of the intermediate portion or the distal portion.

    HIGH DENSITY MAPPING CATHETER FOR CRYOBALOON ABLATION

    公开(公告)号:US20210128232A1

    公开(公告)日:2021-05-06

    申请号:US17087177

    申请日:2020-11-02

    Abstract: A mapping catheter comprises a flexible shaft having a proximal end and an opposite distal end, and an expandable mapping element attached to the distal end of the shaft. The expandable mapping element is configured to self-expand from a collapsed configuration to an expanded configuration. The expanded configuration is defined by a proximal portion extending from the distal end of the shaft and forming a proximally-facing concave recess, an intermediate portion extending distally from the proximal portion and defining a maximum diameter of the mapping element when in the expanded configuration, and a distal portion having a conical shape with a distal portion diameter that decreases in a direction distally of the intermediate portion. The mapping element further includes a plurality of electrodes located in one or both of the intermediate portion or the distal portion.

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