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    METHODS FOR CONTROLLING TEMPERATURE IN ULTRASONIC DEVICE
    3.
    发明申请
    METHODS FOR CONTROLLING TEMPERATURE IN ULTRASONIC DEVICE 审中-公开

    公开(公告)号：US20190274717A1

    公开(公告)日：2019-09-12

    申请号：US16144335

    申请日：2018-09-27

    申请人： Ethicon LLC

    发明人： Cameron R. Nott ,  Fergus P. Quigley ,  Amrita S. Sawhney ,  Stephen M. Leuck ,  Brian D. Black ,  Eric M. Roberson ,  Kristen G. Denzinger ,  Patrick J. Scoggins ,  Craig N. Faller ,  Madeleine C. Jayme ,  Jacob S. Gee

    IPC分类号： A61B17/32

    摘要： A generator, ultrasonic device, and method for controlling a temperature of an ultrasonic blade are disclosed. A control circuit coupled to a memory determines an actual resonant frequency of an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade by an ultrasonic waveguide. The actual resonant frequency is correlated to an actual temperature of the ultrasonic blade. The control circuit retrieves from the memory a reference resonant frequency of the ultrasonic electromechanical system. The reference resonant frequency is correlated to a reference temperature of the ultrasonic blade. The control circuit then infers the temperature of the ultrasonic blade based on the difference between the actual resonant frequency and the reference resonant frequency. The control circuit controls the temperature of the ultrasonic blade based on the inferred temperature

    CALCIFIED VESSEL IDENTIFICATION
    4.
    发明申请
    CALCIFIED VESSEL IDENTIFICATION 审中-公开

    公开(公告)号：US20190274713A1

    公开(公告)日：2019-09-12

    申请号：US16144460

    申请日：2018-09-27

    申请人： Ethicon LLC

    发明人： Patrick J. Scoggins ,  Madeleine C. Jayme ,  Kristen G. Denzinger ,  Cameron R. Nott ,  Craig N. Faller

    IPC分类号： A61B17/32 ,  A61B18/12 ,  A61B17/3211 ,  A61B18/14 ,  A61B17/00

    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.

    Adaptive advanced tissue treatment pad saver mode
    7.
    发明授权
    Adaptive advanced tissue treatment pad saver mode 有权

    公开(公告)号：US11457944B2

    公开(公告)日：2022-10-04

    申请号：US16144423

    申请日：2018-09-27

    申请人： Ethicon LLC

    发明人： Patrick J. Scoggins

    IPC分类号： A61B17/32 ,  A61B18/12 ,  A61B18/14 ,  A61B17/3211 ,  A61B17/00 ,  A61B17/22 ,  A61B18/00 ,  A61B17/28 ,  A61B34/30 ,  A61B34/10 ,  A61B90/00

    摘要： A method of controlling the temperature of an ultrasonic blade between two temperature set points includes applying a first power level to an ultrasonic transducer to set an ultrasonic blade temperature to a first target temperature T1, monitoring a phase angle φ between voltage Vg(t) and current Ig(t) signals applied to the transducer, inferring the temperature of the blade based on the phase angle φ, determining that a transection process is complete, and applying a second power level to the transducer to set the blade temperature to a second target temperature T2. The transducer may be coupled to the blade via an ultrasonic waveguide. The first target temperature may be optimized for vessel sealing and the second target temperature may be optimized for clamp arm pad life. The control circuit may determine that transection is complete by determining that the ultrasonic blade contacts the clamp arm pad.