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    SUBXIPHOID CONNECTIVE LESION ABLATION SYSTEM AND METHOD
    1.
    发明申请
    SUBXIPHOID CONNECTIVE LESION ABLATION SYSTEM AND METHOD 有权

    公开(公告)号：US20210204999A1

    公开(公告)日：2021-07-08

    申请号：US17205775

    申请日：2021-03-18

    Applicant: Medtronic, Inc.

    Inventor： James Skarda ,  Steven F. Bolling ,  Daniel Cheek ,  Brian Ross ,  Mitchell Strain ,  Steve Ramberg ,  Thomas J. Conway ,  Randy M. Thill

    IPC: A61B18/14

    Abstract: Instrument and systems for applying ablative energy to epicardial tissue via a subxiphoid access surgical approach. The instrument has a head assembly sized and shaped for a subxiphoid surgical approach to a patient's heart and defines a contact face. The head assembly includes a paddle body, a first ablation electrode, and a second ablation electrode. The ablation electrodes are coupled to the paddle body in a spaced apart, spatially-fixed fashion. The ablation electrodes are exteriorly exposed at the contact face. A tubular member extends from the head assembly and maintains wiring connected to the ablation electrodes. The instrument is manipulable to locate the contact face on epicardial tissue of a patient's heart via a subxiphoid surgical approach, such as between the left and right pulmonary vein junctions of the posterior left atrium.

    Clot Protection and Detection Algorithm for Activated Clotting Time Testing
    2.
    发明申请
    Clot Protection and Detection Algorithm for Activated Clotting Time Testing 审中-公开

    公开(公告)号：US20160238621A1

    公开(公告)日：2016-08-18

    申请号：US15135327

    申请日：2016-04-21

    Applicant: Medtronic, Inc.

    Inventor： Daniel Cheek ,  Lawrence Erickson ,  Trevor Huang ,  Tessy Kanayinkal ,  Craig Petersen ,  Charlene Yuan

    IPC: G01N33/86

    CPC classification number: G01N33/4905 ,  G01N33/86

    Abstract: Activated clotting time (ACT) tests detect blood clotting time based on the viscosity changes of a test sample, using a ferromagnetic washer lifted to the top of a test chamber and then dropped from the top via gravity; a drop time greater than a preset threshold value indicates clotting of the test sample. Blood samples which have high levels of heparin usually produce very weak clots that may easily be destroyed by the lifting movement of the washer. But if the clot threshold is set low to detect the weak clots, false detections occur during early testing cycles when activators are not fully suspended during the mixing cycle. Improved algorithms for lifting the washer and adjusting over time enable accurate detection of weak clots.

    Subxiphoid connective lesion ablation system and method
    4.
    发明授权
    Subxiphoid connective lesion ablation system and method 有权

    公开(公告)号：US10973566B2

    公开(公告)日：2021-04-13

    申请号：US15787173

    申请日：2017-10-18

    Applicant: Medtronic, Inc.

    Inventor： James Skarda ,  Steven Bolling ,  Daniel Cheek ,  Brian Ross ,  Mitchell Strain ,  Steve Ramberg ,  Thomas J Conway ,  Randy Thill

    IPC: A61B18/14 ,  A61B18/00 ,  A61B18/12

    Abstract: Instrument and systems for applying ablative energy to epicardial tissue via a subxiphoid access surgical approach. The instrument has a head assembly sized and shaped for a subxiphoid surgical approach to a patient's heart and defines a contact face. The head assembly includes a paddle body, a first ablation electrode, and a second ablation electrode. The ablation electrodes are coupled to the paddle body in a spaced apart, spatially-fixed fashion. The ablation electrodes are exteriorly exposed at the contact face. A tubular member extends from the head assembly and maintains wiring connected to the ablation electrodes. The instrument is manipulable to locate the contact face on epicardial tissue of a patient's heart via a subxiphoid surgical approach, such as between the left and right pulmonary vein junctions of the posterior left atrium.

    Clot protection and detection algorithm for activated clotting time testing
    5.
    发明授权
    Clot protection and detection algorithm for activated clotting time testing 有权

    公开(公告)号：US10371694B2

    公开(公告)日：2019-08-06

    申请号：US15135327

    申请日：2016-04-21

    Applicant: Medtronic, Inc.

    Inventor： Daniel Cheek ,  Lawrence Erickson ,  Trevor Huang ,  Tessy Kanayinkal ,  Craig Petersen ,  Charlene Yuan

    IPC: G01N33/49 ,  G01N33/86

    Abstract: Activated clotting time (ACT) tests detect blood clotting time based on the viscosity changes of a test sample, using a ferromagnetic washer lifted to the top of a test chamber and then dropped from the top via gravity; a drop time greater than a preset threshold value indicates clotting of the test sample. Blood samples which have high levels of heparin usually produce very weak clots that may easily be destroyed by the lifting movement of the washer. But if the clot threshold is set low to detect the weak clots, false detections occur during early testing cycles when activators are not fully suspended during the mixing cycle. Improved algorithms for lifting the washer and adjusting over time enable accurate detection of weak clots.

    Multi-zone falling washer blood clot detection
    6.
    发明授权
    Multi-zone falling washer blood clot detection 有权
    多区落下清洗器血块检测

    公开(公告)号：US09429563B2

    公开(公告)日：2016-08-30

    申请号：US13706453

    申请日：2012-12-06

    Applicant: Medtronic, Inc.

    Inventor： Daniel Cheek ,  Lawrence Erickson ,  Trevor Huang ,  Tessy Kanayinkal ,  Craig Petersen ,  Charlene Yuan

    IPC: G01N33/49

    CPC classification number: G01N33/4905 ,  G01N33/86

    Abstract: Activated clotting time (ACT) tests detect blood clotting time based on the viscosity changes of a test sample, using a ferromagnetic washer lifted to the top of a test chamber and then dropped from the top via gravity; a drop time greater than a preset threshold value indicates clotting of the test sample. Blood samples which have high levels of heparin usually produce very weak clots that may easily be destroyed by the lifting movement of the washer. But if the clot threshold is set low to detect the weak clots, false detections occur during early testing cycles when activators are not fully suspended during the mixing cycle. Improved algorithms for lifting the washer and adjusting over time enable accurate detection of weak clots.

    Abstract translation: 活化凝血时间（ACT）测试根据测试样品的粘度变化检测血液凝固时间，使用提升到测试室顶部的铁磁垫圈，然后通过重力从顶部滴落; 大于预设阈值的下降时间表示测试样品的凝血。 具有高水平肝素的血液样品通常产生非常弱的凝块，这可能容易被洗涤器的提升运动所破坏。 但是，如果凝块阈值设置为低以检测弱凝块，则在早期测试周期期间发生错误检测，当激活剂在混合循环期间未完全悬浮时。 用于提升洗衣机和随时间调整的改进的算法可以准确检测弱凝块。

    Clot Protection and Detection Algorithm for Activated Clotting Time Testing
    8.
    发明申请
    Clot Protection and Detection Algorithm for Activated Clotting Time Testing 有权
    用于活化凝血时间测试的凝块保护和检测算法

    公开(公告)号：US20130144538A1

    公开(公告)日：2013-06-06

    申请号：US13706453

    申请日：2012-12-06

    Applicant: MEDTRONIC, INC.

    Inventor： Daniel Cheek ,  Lawrence Erickson ,  Trevor Huang ,  Tessy Kanayinkal ,  Craig Petersen ,  Charlene Yuan

    IPC: G01N33/49

    CPC classification number: G01N33/4905 ,  G01N33/86

    Abstract: Activated clotting time (ACT) tests detect blood clotting time based on the viscosity changes of a test sample, using a ferromagnetic washer lifted to the top of a test chamber and then dropped from the top via gravity; a drop time greater than a preset threshold value indicates clotting of the test sample. Blood samples which have high levels of heparin usually produce very weak clots that may easily be destroyed by the lifting movement of the washer. But if the clot threshold is set low to detect the weak clots, false detections occur during early testing cycles when activators are not fully suspended during the mixing cycle. Improved algorithms for lifting the washer and adjusting over time enable accurate detection of weak clots.

    Abstract translation: 活化凝血时间（ACT）测试根据测试样品的粘度变化检测血液凝固时间，使用提升到测试室顶部的铁磁垫圈，然后通过重力从顶部滴落; 大于预设阈值的下降时间表示测试样品的凝血。 具有高水平肝素的血液样品通常产生非常弱的凝块，这可能容易被洗涤器的提升运动所破坏。 但是，如果凝块阈值设置为低以检测弱凝块，则在早期测试周期期间发生错误检测，当激活剂在混合循环期间未完全悬浮时。 用于提升洗衣机和随时间调整的改进的算法可以准确检测弱凝块。

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