DETECTION AND MAPPING OF PHRENIC NERVE BY PACING

    公开(公告)号:EP3888550A1

    公开(公告)日:2021-10-06

    申请号:EP21165834.9

    申请日:2021-03-30

    摘要: An apparatus includes an interface and a processor. The interface is configured to receive one or more magnetic-positioning signals from one or more position sensors coupled to one or more body-surface patches attached to a body of a patient, the magnetic-positioning signals indicative of respective positions of the position sensors. The processor is configured to (i) detect an inadvertent stimulation of a phrenic nerve of the patient, which occurs due to cardiac pacing applied by an intracardiac electrode in a heart of the patient, (ii) estimate, based on the magnetic-positioning signals, a motion of one or more of the body-surface patches occurring during the detected stimulation of the phrenic nerve, (iii) estimate, based on the estimated motion of the body-surface patches, a distance between the pacing electrode and the phrenic nerve, and (iv) send an output derived from the estimated distance to the output device.

    HANDLING ECTOPIC BEATS IN ELECTRO-ANATOMICAL MAPPING OF THE HEART

    公开(公告)号:EP3845128A1

    公开(公告)日:2021-07-07

    申请号:EP20216419.0

    申请日:2020-12-22

    发明人: GOVARI, Assaf

    IPC分类号: A61B5/364 A61B5/00

    摘要: Medical apparatus includes a probe configured for insertion into a chamber of a heart of a patient and including one or more intracardiac electrodes. Interface circuitry acquires intracardiac electrogram signals from the intracardiac electrodes and electrocardiogram (ECG) signals from body-surface electrodes that are fixed to a body surface of the patient. A processor detects, in each of the heartbeats in the sequence, a P wave in the acquired ECG signals and identifies one or more of the heartbeats in the sequence as ectopic beats responsively to a morphology of the detected P wave in the heartbeats. The processor extracts electrophysiological parameters from the intracardiac electrogram signals acquired during the sequence of the heartbeats and generates a map of the extracted electrophysiological parameters while excluding from the map the intracardiac electrogram signals that were received during the ectopic beats.

    DETERMINING RELEASE OF IMPLANT FROM SHEATH BASED ON MEASURING IMPEDANCE

    公开(公告)号:EP3834718A1

    公开(公告)日:2021-06-16

    申请号:EP20212550.6

    申请日:2020-12-08

    发明人: GOVARI, Assaf

    摘要: An apparatus includes an electrical conductor, a patch electrode and readout circuitry. The electrical conductor is configured to be connected to an implant fitted at a distal end of a shaft for insertion via a sheath into a liquid-filled lumen of an organ of a patient, the patch electrode that is configured to be attached to skin of the patient. The readout circuitry is configured to be connected to the electrical conductor and to the patch electrode, to measure, via the electrical conductor, an electrical impedance between the implant and the patch electrode, and to detect the implant exiting the sheath into the lumen by detecting a drop in the electrical impedance that is larger than a predefined threshold.

    BALLOON CATHETER WITH FORCE SENSOR
    55.
    发明公开

    公开(公告)号:EP3791816A3

    公开(公告)日:2021-06-16

    申请号:EP20195644.8

    申请日:2020-09-11

    摘要: In one embodiment, a system includes a balloon catheter configured to be inserted into a body-part of a living subject, the balloon catheter comprising an insertion tube having a distal tip, a force sensor connected to the distal tip, and an inflatable balloon including a proximal portion connected to the force sensor so that the force sensor is disposed between the distal tip of the insertion tube and the inflatable balloon, and multiple electrodes disposed around an outer surface of the balloon, and configured, when the balloon is inflated, to contact tissue at respective locations in the body-part, wherein the force sensor is configured to output at least one force signal indicative of a magnitude and a direction of a force applied by the balloon on the tissue when the balloon is inflated.

    BUBBLE DETECTOR ON PROXIMAL END OF CATHETER WITH FAIL-SAFE MECHANISM

    公开(公告)号:EP3771475A1

    公开(公告)日:2021-02-03

    申请号:EP20188421.0

    申请日:2020-07-29

    IPC分类号: A61M3/02 A61B18/14

    摘要: A system includes a probe, a processor, and a bubble detector. The probe is configured for insertion into a lumen of a patient and is coupled to an irrigation pump. The processor is configured to control delivery of irrigation fluid to the probe by turning on and controlling the irrigation pump. The bubble detector is coupled to a proximal portion of the probe. In response to the irrigation pump being turned on, the bubble detector is configured to automatically start detection of gas bubbles in the irrigated fluid, and transmit fail-safe signals indicating fail-safe bubble detection is operational. The processor is further configured to monitor the fail-safe signals and, in absence of fail-safe signals, to automatically disable delivery of the irrigation fluid.

    MYOCARDIAL TISSUE ABLATION WITH NARROW TEMPERATURE VARIATION

    公开(公告)号:EP3769710A1

    公开(公告)日:2021-01-27

    申请号:EP20187664.6

    申请日:2020-07-24

    摘要: A system including a medical probe having a tube with a distal end for insertion into a cardiac chamber, an electrode at the distal end that conveys energy to myocardial tissue, a temperature sensor at the distal end that outputs a signal indicating a temperature of the tissue, a channel contained within the tube that delivers fluid to the distal end, and a fluid port at the distal end and coupled to the channel. The system also includes a generator that applies a specified level of the energy to the electrode, a pump that forces the fluid into the channel at a controllable rate, and a processor that controls the rate responsively to the signal so that a difference between a specified temperature, which is no greater than 55° C, and the indicated temperature is no greater than ±2.5° C while the generator applies a constant level of the energy.

    MOVING A GUIDEWIRE IN A BRAIN LUMEN
    58.
    发明公开

    公开(公告)号:EP3766535A1

    公开(公告)日:2021-01-20

    申请号:EP20183379.5

    申请日:2020-07-01

    IPC分类号: A61M25/09 A61M25/01 A61M25/10

    摘要: A medical probe (28) includes a guidewire (33), a guidewire advancement mechanism (GAM, 55), and a middle inflatable balloon (39). The guidewire (33) is configured for insertion into a lumen of an organ of a patient. The GAM is disposed at a distal end of the guidewire (33), with the GAM including: (i) a proximal inflatable balloon (35), (ii) a distal inflatable balloon (37), and (iii) a middle inflatable balloon (39) that is coupled between the proximal (35) and distal balloons (37). The proximal, distal and middle balloons (35, 37, 39) are configured to move the guidewire (33) in the lumen by inflating and deflating in a predefined sequence.

    MEDICAL INSTRUMENT IDENTIFICATION
    60.
    发明公开

    公开(公告)号:EP3718493A1

    公开(公告)日:2020-10-07

    申请号:EP20167892.7

    申请日:2020-04-03

    IPC分类号: A61B17/24 A61B90/98

    摘要: In one embodiment, a medical instrument tracking system includes a medical instrument including a handle and different interchangeable heads for insertion into the handle having a handle position-tracking transducer disposed thereon, different respective ones of the interchangeable heads having differently positioned respective head position-tracking transducers disposed thereon so as when the different respective ones of the heads are inserted into the handle, the different respective head position-tracking transducers define different respective positions relative to the handle position-tracking transducer, and processing circuitry to receive signals generated by the handle position-tracking transducer and the respective head position-tracking transducer of a respective one of the heads inserted into the handle, compute a relative position between the handle position-tracking transducer and the head position-tracking transducer of the inserted interchangeable head, and identify which interchangeable head is inserted into the handle responsively to the computed relative position.