Systems for coupling adjuncts to an end effector

    公开(公告)号:US10765426B2

    公开(公告)日:2020-09-08

    申请号:US15436328

    申请日:2017-02-17

    Applicant: Ethicon LLC

    Abstract: An adjunct loading system is provided that can include at least one adjunct material configured to be transferred from an adjunct loading member to first and second jaws of an end effector. The loading system can also include a supporting member configured to releasably retain the adjunct material. The loading system can further include an adhesive depot having an adhesive configured to transition from a non-flowable state to a flowable state upon application of heat when the adjunct material is released from the adjunct loading member and transferred to the jaw to retain the adjunct material on the jaw. The adjunct material is released from the adjunct loading member when load is applied thereto. The adhesive depot can be in the form of an adhesive feature formed on a polymer attachment layer or in the form of reservoirs in the supporting member.

    TECHNIQUES FOR CIRCUIT TOPOLOGIES FOR COMBINED GENERATOR

    公开(公告)号:US20200261141A1

    公开(公告)日:2020-08-20

    申请号:US16795886

    申请日:2020-02-20

    Applicant: Ethicon LLC

    Abstract: Provided is a method for managing radio frequency (RF) and ultrasonic signals output by a generator that includes a surgical instrument comprising an RF energy output and an ultrasonic energy output and a circuit configured to receive a combined RF and ultrasonic signal from the generator. The method includes receiving a combined radio frequency (RF) and ultrasonic signal from a generator, generating a RF filtered signal by filtering RF frequency content from the combined signal; filtering ultrasonic frequency content from the combined signal; generating an ultrasonic filtered signal; providing the RF filtered signal to the RF energy output; and providing the ultrasonic filtered signal to the ultrasonic energy output.

    Modular powered electrical connection for surgical instrument with features to prevent electrical discharge

    公开(公告)号:US10667812B2

    公开(公告)日:2020-06-02

    申请号:US15634497

    申请日:2017-06-27

    Applicant: ETHICON LLC

    Abstract: An apparatus includes a body assembly, a modular shaft assembly, and a coupling detection assembly. The body assembly includes a control circuit, a battery pack operable to power the control circuit, and a first electrical contact assembly. The modular shaft assembly includes a second electrical contact assembly that is configured to operatively engage the first electrical contact assembly when the modular shaft assembly selectively couples with the body assembly. A detection trigger member is configured to activate a detection activation member such that the detection activation member communicates a first detection signal to the control circuit when the modular shaft assembly selectively couples with the body assembly. The control circuit is configured to verify operative engagement between the first electrical contact and the second electrical contact in response to the control circuit receiving the first detection signal.

    SIGNAL AND POWER COMMUNICATION SYSTEM POSITIONED ON A ROTATABLE SHAFT

    公开(公告)号:US20200093484A1

    公开(公告)日:2020-03-26

    申请号:US16587485

    申请日:2019-09-30

    Applicant: Ethicon LLC

    Abstract: A surgical instrument assembly can comprise a handle including an electric motor, a shaft assembly including a drive member, and a magnet configured to generate a magnetic field. The surgical instrument assembly further comprises, one, a rotatable output shaft operably coupled with the electric motor and the drive member and, two, a wire coil wound around the output shaft which is positioned in the magnetic field. The wire coil is rotated within the magnetic field when the output shaft is rotated about a longitudinal axis which induces a current in the wire coil. The surgical instrument assembly further comprises a strain gauge mounted to the output shaft configured to detect strain created within the output shaft and, in addition, a circuit mounted to the output shaft, wherein the circuit and/or the strain gauge is powered by the current induced in the wire coil.

    MOTORIZED SURGICAL CUTTING AND FASTENING INSTRUMENT

    公开(公告)号:US20200038020A1

    公开(公告)日:2020-02-06

    申请号:US16540670

    申请日:2019-08-14

    Applicant: Ethicon LLC

    Abstract: A surgical cutting and fastening instrument comprises an end effector, a shaft connected to the end effector, and a handle connected to the shaft. The handle comprises an electric, DC motor connected to a drive train for powering the drive train and a plurality of series-connected DC power source connected to the motor for supplying electrical power to the motor. The handle also comprises a power source selection switch for connecting, when in a first state, all of the DC power sources to the motor, and, when in a second state, a subset of the DC power sources to the motor. Also disclosed are means for actuating a RF electrode in the end effector and means for indicating actuation of the RF electrode.

    Surgical instrument including a control system

    公开(公告)号:US10542974B2

    公开(公告)日:2020-01-28

    申请号:US15692367

    申请日:2017-08-31

    Applicant: Ethicon LLC

    Abstract: A surgical instrument comprising an end effector, a firing member, an elongate shaft, and a handle is disclosed. The end effector comprises an anvil, a channel, and a staple cartridge. The firing member comprises a first camming member configured to engage the anvil during a staple firing stroke, a second camming member configured to engage the channel during the staple firing stroke, and a cutting member. The handle comprises a motor configured to output a rotary motion, a power source, a control system configured to control the speed of the rotary motion, a rotary drive member, and a control system. The firing member is operably responsive to the rotation of the rotary drive member. Torque is output from the motor to the rotary drive member. The control system is configured to limit the output from the motor to the rotary drive member.

    Powered surgical instrument including speed display

    公开(公告)号:US10531887B2

    公开(公告)日:2020-01-14

    申请号:US15459538

    申请日:2017-03-15

    Applicant: Ethicon LLC

    Abstract: A surgical instrument comprising an end effector configured to grasp tissue. The end effector comprises at least one sensor configured to measure a parameter corresponding to a thickness of the grasped tissue. The surgical instrument further includes a firing member movable during a firing stroke to cause a motion at the end effector and a motor configured to drive the firing member. A feedback indicator or display is configured to display the speed of the firing member according to one of a plurality of zones of speed, such as the relative speed of the firing member.

    SURGICAL INSTRUMENT WITH SELECTIVELY DISENGAGEABLE DRIVE SYSTEMS

    公开(公告)号:US20200008809A1

    公开(公告)日:2020-01-09

    申请号:US16537835

    申请日:2019-08-12

    Applicant: Ethicon LLC

    Abstract: A surgical instrument including a surgical end effector and a threaded rotary input shaft. An actuator member is in operable engagement with the surgical end effector and is in selective threaded engagement with the threaded rotary input shaft such that when the actuator member is in an engaged configuration, rotation of said threaded rotary input shaft causes the actuator member to move axially to impart an actuation motion to the surgical end effector and when the actuator member is in a disengaged configuration, rotation of the threaded rotary input shaft will not be imparted to the actuator member. A switch may be employed for selectively moving the actuator between the engaged and disengaged configurations. A locking system may be employed for preventing axial movement of the actuator member when the actuator member is in the disengaged configuration.

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