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    Cardiac output support apparatus
    2.
    发明授权
    Cardiac output support apparatus 有权

    公开(公告)号：US11980751B2

    公开(公告)日：2024-05-14

    申请号：US17271968

    申请日：2019-08-30

    申请人： CYBERDYNE INC. ,  UNIVERSITY OF TSUKUBA

    发明人： Yoshiyuki Sankai

    IPC分类号： A61M60/00 ,  A61M60/191 ,  A61M60/289 ,  A61M60/468

    CPC分类号： A61M60/191 ,  A61M60/289 ,  A61M60/468 ,  A61M2205/04

    摘要： A first drive unit, in a state where a top end of a tubular joint is interposed into a chest of a target person and is located at a lower heart part, pushes a diaphragm out from the top end of the tubular joint while pressing a gas into the diaphragm, and simultaneously causes the diaphragm to start flexing to cover and wrap the lower heart part, and then stops pressing the gas into the diaphragm at a time point where compression balloons are positioned at atriums and ventricles of a heart, respectively; and second drive units support a pumping function of the heart by alternately repeating an ejecting operation to fill each of the compression balloons with a fluid and cause each compression balloon to expand and an absorbing operation to cause each compression balloon to discharge the fluid and contract.

    MECHANICAL CARDIAC RESYNCHRONIZATION THERAPY DEVICE
    3.
    发明公开
    MECHANICAL CARDIAC RESYNCHRONIZATION THERAPY DEVICE 审中-公开

    公开(公告)号：US20230355955A1

    公开(公告)日：2023-11-09

    申请号：US18203018

    申请日：2023-05-29

    申请人： NeoCardial Technologies, LLC

    发明人： William J. Rissmann ,  Allan R. Robinson ,  Theodore J. Lillehei

    IPC分类号： A61M60/191 ,  A61M60/468 ,  A61M60/515 ,  A61M60/289

    CPC分类号： A61M60/191 ,  A61M60/468 ,  A61M60/515 ,  A61M60/289

    摘要： The embodiments relate to cardiac assist devices that comprise a jacket that wraps the exterior of the heart, where the jacket comprises a left chamber and a right chamber overlaying the left and right ventricles of the heart, respectively, where the chambers are expanded pneumatically to exert pressure on the heart and thereby mechanically assist its pumping. The timing of expansion of the left and right bladders is controlled by an electrical controller to match the desired or natural timing of contraction of the left and right ventricles, where both the left and right chambers may not expand simultaneously but are timed to optimize assistance of the heart. The embodiments provide jackets that apply pneumatic pressure to the right and left ventricles separately in timing to provide mechanical cardiac resynchronization therapy, as distinct from the conventional electrical stimulation cardiac resynchronization therapy.

    Dynamic Drive System for Cardiac Systolic and Diastolic Assist
    5.
    发明公开
    Dynamic Drive System for Cardiac Systolic and Diastolic Assist 审中-公开

    公开(公告)号：US20240198079A1

    公开(公告)日：2024-06-20

    申请号：US18586464

    申请日：2024-02-24

    申请人： Lifebridge Technologies, LLC

    发明人： Mark P. Anstadt

    IPC分类号： A61M60/191 ,  A61M39/22

    CPC分类号： A61M60/191 ,  A61M39/22 ,  A61M2205/10 ,  A61M2205/3331

    摘要： A system and method for assisting a heart in pumping blood, wherein the heart has external force requirements that need to be externally applied to the heart using a cardiac assist device that is powered by a drive fluid. The cardiac assist device is powered by a drive fluid having a pressure/flow profile that is customized to the needs of the heart. The pressure/flow profile is generated by a displacement pump. If the pressure/flow profile requires pressures that cannot be made by the displacement pump, then the pressure/flow profile can be altered by venting pressure and/or adding pressurized fluid into the system. In this manner, a precise pressure/flow profile can be produced that meets the exact needs of a heart being acted upon by a cardiac assist device.

    Heart assisting device
    7.
    发明授权
    Heart assisting device 有权

    公开(公告)号：US11660430B2

    公开(公告)日：2023-05-30

    申请号：US16888891

    申请日：2020-06-01

    申请人： Peter Forsell

    发明人： Peter Forsell

    IPC分类号： A61M27/00 ,  A61M60/191 ,  A61M60/289 ,  A61M60/468 ,  A61N1/39 ,  A61N1/362 ,  A61M1/04

    CPC分类号： A61M27/002 ,  A61M60/191 ,  A61M60/289 ,  A61M1/04 ,  A61M60/468 ,  A61M2027/004 ,  A61M2205/332 ,  A61M2210/122 ,  A61N1/3627 ,  A61N1/3962

    摘要： The present invention relates to surgical or laparoscopic method of creating and maintaining an opening in the thoracic diaphragm of a patient. In said method, an incision in the thoracic diaphragm is created, thereby creating an opening in the thoracic diaphragm. Further a diaphragm passing part is placed in said opening created in the thoracic diaphragm, passing from the abdomen, through the thoracic diaphragm at the pericardial contacting section, into the pericardium; When placing the diaphragm passing part a force transferring part of the diaphragm passing part is placed in contact with the thoracic diaphragm, the force transferring part being adapted to, by motion of the force transferring part, transfer force between the abdominal side of the thoracic diaphragm and the thoracic side of the thoracic diaphragm or the pericardium while sliding against the thoracic diaphragm.

    System and Method for Providing Improved Cardiac Pump Function Through Synchronization with the Natural Mechanical Contractions of the Heart
    8.
    发明申请
    System and Method for Providing Improved Cardiac Pump Function Through Synchronization with the Natural Mechanical Contractions of the Heart 有权

    公开(公告)号：US20220280771A1

    公开(公告)日：2022-09-08

    申请号：US17825343

    申请日：2022-05-26

    申请人： Lifebridge Technologies, LLC

    发明人： Mark P. Anstadt

    IPC分类号： A61M60/569 ,  A61M60/191 ,  A61M60/289

    摘要： A control system for a cardiac support device and the method of supporting the functionality and synchronized contraction of a heart. An optimal strain profile is calculated for a healthy heart. The cardiac support device is attached to the heart and a true ventricular strain profile is measured. The cardiac support device applies external forces to the heart, therein altering said ventricular strain profile of said heart to be closer to the optimal strain profile. The cardiac support device is dynamically controlled to synchronize with the beating rhythm of the heart. The external forces have an applied strain profile. The applied strain profile has a peak strain, a time to peak strain, and a cycle time. These variables can be adjusted either individually or in combinations to fine tune the cardiac support device and cause the altered strain profile of the heart to be closer to the optimal strain profile.