公开(公告)号：US20210196351A1

公开(公告)日：2021-07-01

申请号：US16887506

申请日：2020-05-29

Applicant: Ethicon LLC

Inventor： John M. Sarley ,  Chad P. Boudreaux ,  Tyler N. Brehm ,  Wei Guo ,  Ellen E. Burkart ,  Jeffrey D. Messerly ,  Craig N. Faller ,  Robert S. Bishop ,  Michael A. Keenan ,  William A. Olson ,  Richard W. Flaker ,  Frederick E. Shelton, IV

IPC: A61B18/14 ,  A61B18/12

Abstract: An end-effector is disclosed. The end-effector includes a clamp arm and an ultrasonic blade configured to acoustically couple to an ultrasonic transducer and electrically couple to a pole of an electrical generator. The clamp arm includes a clamp jaw, a clamp arm pad, and a cantilever electrode that is free to deflect. The cantilever electrode is configured to electrically couple to an opposite pole of the electrical generator. Also disclosed are configurations where the clamp arm includes a peripheral cantilever electrode and a clamp arm pad extending beyond the electrode, a floating cantilever electrode and a resilient clamp arm pad, an interlocked cantilever electrode plate and a clamp arm pad configured to receive the plate, a laterally deflectable cantilever electrode and a clamp arm pad extending beyond the electrode, and a flexible cantilever electrode and a clamp arm pad extending beyond the electrode.

公开(公告)号：US11051866B2

公开(公告)日：2021-07-06

申请号：US15967759

申请日：2018-05-01

Applicant: ETHICON LLC

Inventor： Frederick L. Estera ,  Michael A. Keenan ,  Craig T. Davis ,  William B. Weisenburgh, II ,  Jason R. Lesko

IPC: A61B17/32 ,  A61B18/00 ,  A61B18/12 ,  A61B18/14 ,  A61B17/00 ,  A61B17/29 ,  A61B90/00

Abstract: A surgical instrument includes an ultrasonic transducer, a shaft extending distally along a shaft axis, a waveguide acoustically coupled with the ultrasonic transducer and extending distally through the shaft, and an end effector at a distal end of the shaft. The end effector includes an ultrasonic blade acoustically coupled with the waveguide. A nodal support element is arranged within a distal portion of the shaft and encircles the waveguide at a distal-most acoustic node of the waveguide. The nodal support element includes a support portion aligned with the distal-most acoustic node, and a sealing portion extending axially from the support portion. The support portion engages an inner surface of the shaft and is configured to support the waveguide in coaxial alignment with the shaft axis. The sealing portion sealingly engages the inner surface of the shaft and is configured to prevent proximal ingress of fluid through the shaft.

公开(公告)号：US20210196334A1

公开(公告)日：2021-07-01

申请号：US16887493

申请日：2020-05-29

Applicant: Ethicon LLC

Inventor： John M. Sarley ,  Chad P. Boudreaux ,  Tyler N. Brehm ,  Ellen E. Burkart ,  Jeffrey D. Messerly ,  Craig N. Faller ,  Robert S. Bishop ,  Michael A. Keenan ,  William A. Olson ,  Richard W. Flaker ,  Frederick E. Shelton, IV ,  Frederick L. Estera ,  Bruce Brunson, JR. ,  Guion Y. Lucas ,  Demetrius N. Harris ,  Stephen M. Leuck ,  Nina Mastroianni ,  John E. Brady ,  Wei Guo ,  Geoffrey S. Strobl ,  Joseph S. Salguero ,  Lauren M. Valente ,  Joseph H. Kemper

IPC: A61B18/00 ,  A61B18/14

Abstract: Disclosed is a surgical instrument with an end-effector adapted and configured to deliver a plurality of energy modalities to tissue at a distal end thereof. The energy modalities may be applied simultaneously, independently, or sequentially. A generator is electrically coupled to the surgical instrument and is configured to supply a plurality of energy modalities to the end-effector. In one aspect, the generator is configured to supply electrosurgical energy (e.g., monopolar or bipolar radio frequency (RF) energy) and ultrasonic energy to the end-effector to allow the end-effector to interact with the tissue. The energy modalities may be supplied to the end-effector by a single generator or multiple generators.

公开(公告)号：US20210196353A1

公开(公告)日：2021-07-01

申请号：US16951259

申请日：2020-11-18

Applicant: Ethicon LLC

Inventor： Jacob S. Gee ,  Michael A. Keenan ,  Joshua D. Raker ,  Jeffrey D. Messerly ,  Frederick E. Shelton, IV ,  Geoffrey S. Strobl ,  Joseph S. Salguero ,  Wei Guo

IPC: A61B18/14

Abstract: An end-effector configured to grasp tissue is disclosed herein. The end-effector includes an ultrasonic blade configured to transfer ultrasonic energy to the tissue and a clamp arm. The clamp arm includes a clamp arm pad including an electrically conductive material and an electrically non-conductive material. The clamp arm pad is configured as an electrode of a radiofrequency energy circuit, wherein the electrode is configured to transfer radiofrequency energy through the tissue to a return electrode of the radiofrequency energy circuit, and wherein the electrically non-conductive material is configured to reduce the possibility of an electrical short between the electrically conductive material and the ultrasonic blade as the clamp arm pad degrades throughout the usable life of the end effector.

公开(公告)号：US20180333183A1

公开(公告)日：2018-11-22

申请号：US15967759

申请日：2018-05-01

Applicant: ETHICON LLC

Inventor： Frederick L. Estera ,  Michael A. Keenan ,  Craig T. Davis ,  William B. Weisenburgh, II ,  Jason R. Lesko

IPC: A61B18/00 ,  A61B18/14

CPC classification number: A61B18/00 ,  A61B17/320068 ,  A61B17/320092 ,  A61B18/1206 ,  A61B18/1445 ,  A61B2017/320075 ,  A61B2017/320094 ,  A61B2017/320095 ,  A61B2018/0063 ,  A61B2018/00988 ,  A61B2018/00994 ,  A61B2018/126 ,  A61B2018/1452 ,  A61B2090/0803

Abstract: A surgical instrument includes an ultrasonic transducer, a shaft extending distally along a shaft axis, a waveguide acoustically coupled with the ultrasonic transducer and extending distally through the shaft, and an end effector at a distal end of the shaft. The end effector includes an ultrasonic blade acoustically coupled with the waveguide. A nodal support element is arranged within a distal portion of the shaft and encircles the waveguide at a distal-most acoustic node of the waveguide. The nodal support element includes a support portion aligned with the distal-most acoustic node, and a sealing portion extending axially from the support portion. The support portion engages an inner surface of the shaft and is configured to support the waveguide in coaxial alignment with the shaft axis. The sealing portion sealingly engages the inner surface of the shaft and is configured to prevent proximal ingress of fluid through the shaft.