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    Area ratios of patterned coatings on RF electrodes to reduce sticking
    22.
    发明授权
    Area ratios of patterned coatings on RF electrodes to reduce sticking 有权

    公开(公告)号：US11497546B2

    公开(公告)日：2022-11-15

    申请号：US15476665

    申请日：2017-03-31

    Applicant: Cilag GmbH International

    Inventor： Cameron R. Nott ,  Gregory A. Trees

    IPC: A61B18/14 ,  A61B18/00 ,  A61B18/12 ,  A61B17/00

    Abstract: An electrosurgical system includes an RF current generator, a handle body, and an end effector. The end effector may include a first and a second energy delivery surface. At least a portion of either first or second energy delivery surfaces, or both, may include one or more patterned coatings of an electrically non-conducting non-stick material. The material may be deposited on a surface of, within a depression in, or on features extending from the energy surfaces, or through an overmolding process. The patterned coating may be formed from a coating of the material from which portions have been removed. An energy delivery surface has a first area, and the patterned coating has a second area. A ratio of the second area to the first area may be less than or equal to about 0.9, less than or equal to about 0.7, or less than or equal to about 0.5.

    RADIO FREQUENCY ENERGY DEVICE FOR DELIVERING COMBINED ELECTRICAL SIGNALS
    23.
    发明申请
    RADIO FREQUENCY ENERGY DEVICE FOR DELIVERING COMBINED ELECTRICAL SIGNALS 有权

    公开(公告)号：US20220323150A1

    公开(公告)日：2022-10-13

    申请号：US17730666

    申请日：2022-04-27

    Applicant: Cilag GmbH International

    Inventor： David C. Yates ,  Cameron R. Nott ,  Kevin L. Houser ,  Frederick E. Shelton, IV ,  Jason L. Harris ,  Verne E. Kreger, JR.

    IPC: A61B18/16 ,  A61B18/12 ,  A61B17/32 ,  A61B18/14

    Abstract: An electrosurgical device may include a controller including an electrical generator, a surgical probe having a distal active electrode in electrical communication with an electrical source terminal of the electrical generator, and a return pad in electrical communication with an electrical return terminal of the electrical generator. The electrical generator may be configured to source an electrical current from the electrical source terminal, in which the electrical current combines characteristics of a therapeutic electrical signal and characteristics of an excitable tissue stimulating signal. The device may be configured to determine a distance from the electrode to an excitable tissue, based at least in part on an output signal generated by a sensing device in the pad. The device may also be configured to alter one or more characteristics of the therapeutic signal when the distance from the electrode to the tissue is less than a predetermined value.

    COMBINATION ULTRASONIC AND ELECTROSURGICAL INSTRUMENT WITH ADJUSTABLE ENERGY MODALITIES AND METHOD FOR LIMITING BLADE TEMPERATURE
    24.
    发明申请
    COMBINATION ULTRASONIC AND ELECTROSURGICAL INSTRUMENT WITH ADJUSTABLE ENERGY MODALITIES AND METHOD FOR LIMITING BLADE TEMPERATURE 有权

    公开(公告)号：US20220202465A1

    公开(公告)日：2022-06-30

    申请号：US17572003

    申请日：2022-01-10

    Applicant: Cilag GmbH International

    Inventor： Cameron R. Nott ,  Amrita S. Sawhney

    IPC: A61B18/00 ,  A61B18/14 ,  A61B17/32 ,  A61B18/12

    Abstract: An ultrasonic surgical instrument and method of limiting an ultrasonic blade temperature includes adjusting at least one power parameter of the ultrasonic energy in response to reaching a predetermined frequency parameter change threshold in the ultrasonic blade limiting the temperature of the ultrasonic blade to an upper temperature limit. The ultrasonic surgical instrument further includes an end effector having an ultrasonic blade, a jaw, and a controller. The jaw is movably positioned relative to the ultrasonic blade and configured to move between an open position and a closed position. The controller operatively connects to the ultrasonic blade and is configured to measure an ultrasonic frequency of the ultrasonic blade. The controller has a memory including a plurality of predetermined data correlations that correlate changes in measured ultrasonic frequency of the ultrasonic blade to a blade temperature of the ultrasonic blade.

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