CALCIFIED VESSEL IDENTIFICATION
    5.
    发明公开

    公开(公告)号:EP3536259A1

    公开(公告)日:2019-09-11

    申请号:EP19161237.3

    申请日:2019-03-07

    申请人: Ethicon LLC

    IPC分类号: A61B17/32

    摘要: An ultrasonic device may include an ultrasonic system including a transducer coupled to an ultrasonic blade, A method of delivering energy to the device may include sensing a vessel contacting the blade, identifying that the vessel is calcified, and generating a warning. In some aspects, the method further includes disabling one or more activation functions of the blade. In another aspect, the method further includes generating a message to apply compression to the vessel for a predetermined period, disabling activation functions of the blade during compression, and enabling activation functions after the expiration of the compression period. In yet another aspect, the method includes applying a compressive clamp force to the calcified vessel by driving a clamp arm toward the blade, disabling activation functions of the blade during compression, and enabling the activation functions after adjusting the compressive force. An ultrasonic surgical instrument may effect the method.

    ULTRASONIC SEALING ALGORITHM WITH TEMPERATURE CONTROL

    公开(公告)号:EP3536254A1

    公开(公告)日:2019-09-11

    申请号:EP19161222.5

    申请日:2019-03-07

    申请人: Ethicon LLC

    IPC分类号: A61B17/32

    摘要: A method of ultrasonic sealing includes activating an ultrasonic blade temperature sensing, measuring a first resonant frequency of an ultrasonic electromechanical system that includes a transducer coupled to the blade via a waveguide, making a first comparison between the measured first resonant frequency and a first predetermined resonant frequency, and adjusting a power level applied to the transducer based on the first comparison. The first predetermined frequency may correspond to an optimal tissue coagulation temperature. The method may further include measuring a second resonant frequency of the system, making a second comparison between the measured second frequency and a second predetermined frequency, and adjusting the power level based on the second comparison. The second predetermined frequency may correspond a melting point temperature of a clamp arm pad. An ultrasonic instrument and a generator may implement the method.