BLADE ESCAPE PREVENTION FEATURE FOR SURGICAL INSTRUMENT AND METHOD FOR PREVENTING SAME

    公开(公告)号:US20200305964A1

    公开(公告)日:2020-10-01

    申请号:US16833023

    申请日:2020-03-27

    Applicant: Covidien LP

    Abstract: A jaw member for a surgical instrument includes an outer housing having a sealing plate operably coupled thereon including an upper knife channel defined therethrough and extending therealong. A pair of opposing jaw flanges is configured to operably couple to a corresponding pair of jaw flanges of an opposing jaw member. An insulative insert is disposed within the outer housing and includes opposing sidewalls and a connector portion which define an engagement channel and a lower knife channel in vertical registration with the upper knife channel, the upper and lower knife channels configured to receive a knife of a knife assembly, the engagement channel configured to receive a tube of the knife assembly. A top plate is engaged between the jaw flanges, a portion of the top plate is configured to extend across the engagement channel and retain the tube within the engagement channel during translation of the knife assembly.

    Methods of manufacturing jaw members of an end-effector assembly for a surgical instrument

    公开(公告)号:US10231777B2

    公开(公告)日:2019-03-19

    申请号:US14793978

    申请日:2015-07-08

    Applicant: COVIDIEN LP

    Abstract: A method of manufacturing a jaw member of an end-effector assembly includes forming one or more stress-relief cavities within a sealing plate. Each one of the one or more stress-relief cavities defines a pad portion of an electrically-conductive surface of the sealing plate. The method also includes forming a stop member on each pad portion of the electrically-conductive surface of the sealing plate, performing an overmolding operation wherein the one or more stress-relief cavities is configured to prevent force applied to a bottom surface of the sealing plate during the overmolding operation from stressing each pad portion to avoid compromising adhesion between the stop member and the electrically-conductive surface of the sealing plate.

    Electrosurgical system for use with non-stick coated electrodes

    公开(公告)号:US12167884B2

    公开(公告)日:2024-12-17

    申请号:US17554139

    申请日:2021-12-17

    Applicant: Covidien LP

    Abstract: An electrosurgical system includes an electrosurgical instrument having an electrode with a polymeric dielectric coating; and an electrosurgical generator, which includes a power converter configured to generate RF energy; a sensor coupled to the power converter and configured to sense a parameter of the RF energy; and a controller coupled to the sensor and the power converter. The controller is configured to control the power converter to output an RF waveform to achieve conductor breakthrough through the polymeric dielectric coating. The controller is further configured to determine whether the conductor breakthrough occurred based on the parameter; and execute a treatment algorithm based on a determination of the conductor breakthrough.

    Electrosurgical system for use with non-stick coated electrodes

    公开(公告)号:US11207124B2

    公开(公告)日:2021-12-28

    申请号:US16504481

    申请日:2019-07-08

    Applicant: COVIDIEN LP

    Abstract: An electrosurgical system includes an electrosurgical instrument having an electrode with a polymeric dielectric coating; and an electrosurgical generator, which includes a power converter configured to generate RF energy; a sensor coupled to the power converter and configured to sense a parameter of the RF energy; and a controller coupled to the sensor and the power converter. The controller is configured to control the power converter to output an RF waveform to achieve conductor breakthrough through the polymeric dielectric coating. The controller is further configured to determine whether the conductor breakthrough occurred based on the parameter; and execute a treatment algorithm based on a determination of the conductor breakthrough.

    Surgical instrument
    6.
    发明授权

    公开(公告)号:US10405874B2

    公开(公告)日:2019-09-10

    申请号:US14268140

    申请日:2014-05-02

    Applicant: COVIDIEN LP

    Abstract: A surgical instrument is provided. The surgical instrument includes a housing. A movable handle is coupled to the housing and is configured to approximate a pair of jaw members toward and away from one another. A latch mechanism operably couples to the movable handle and includes one or more mechanical interfaces configured to selectively engage a corresponding mechanical interface disposed within the housing to lock and unlock the jaw members in an approximated configuration. When the movable handle is in a jammed position, the mechanical interface(s) of the latch mechanism is/are configured to deform and separate from the corresponding mechanical interface disposed within the housing when the movable handle is moved from the jammed position.

    JAW TIP SUPPORT FOR TAPERED JAW MEMBER
    9.
    发明公开

    公开(公告)号:US20230157745A1

    公开(公告)日:2023-05-25

    申请号:US17958692

    申请日:2022-10-03

    Applicant: Covidien LP

    CPC classification number: A61B18/1445 A61B2018/00101

    Abstract: A jaw member of an electrosurgical instrument includes a U-shaped structural frame defining a cavity therein and extending therealong configured to receive at least a portion of an insulative spacer therein such that the insulative spacer extends distally therefrom. The insulative spacer includes a tapered fin at a distal end thereof. A tissue treating plate is disposed on the face of the insulative spacer, the tissue treating plate is adapted to connect to a source of energy to treat tissue therewith. The tapered fin is configured to extend to and support a distal end of the tissue treating plate.

    TWO-PART SEAL PLATE FOR VESSEL SEALER AND METHOD OF MANUFACTURING SAME

    公开(公告)号:US20210322088A1

    公开(公告)日:2021-10-21

    申请号:US16850045

    申请日:2020-04-16

    Applicant: Covidien LP

    Abstract: An end effector assembly includes a pair of opposing jaw members, one or both of the jaw members having a support base and an electrical jaw lead adapted to operably connect to an electrosurgical generator. A sealing plate is operably coupled to the support base and includes: an upper plate having an outer peripheral edge that extends therefrom and that defines a cavity configured to receive a lower plate; and a series of grooves defined within the upper plate and projecting therethrough to expose the lower plate. One or both of the upper plate or the lower plate is operably coupled to the electrical lead.

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