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公开(公告)号：US20240041515A1
公开(公告)日：2024-02-08
申请号：US18381404
申请日：2023-10-18
发明人： David A. Witt , Frederick E. Shelton, IV , David C. Yates , Chad P. Boudreaux , Eric M. Roberson , Kevin L. Houser , Geoffrey S. Strobl
IPC分类号： A61B18/14
CPC分类号： A61B18/148 , A61B18/14 , A61B2018/00035
摘要： An end effector of an electrosurgical device may include a discharge port in communication with a first fluid path, an aspiration port in communication with a second fluid path, a first and second electrode, and a diverter in mechanical communication with the two electrodes. The diverter may receive, on its surface, a fluid emitted by the discharge port, and maintain a contact of the fluid with the first and second electrodes. The diverter may be further configured to prevent an aspiration, by the aspiration port, of the fluid on its surface. An electrosurgical device may include a source port in communication with a first fluid path, an evacuation port in communication with a second fluid path, a first and second electrode, and a housing. The device may include a shaft extending distally from the housing and the end effector as described above.
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公开(公告)号：US11826069B2
公开(公告)日：2023-11-28
申请号：US17167486
申请日：2021-02-04
发明人： David A. Witt , Timothy G. Dietz , Stephen J. Balek , Benjamin M. Boyd , David C. Groene , Benjamin V. Vins , William C. Horton, III , Ashvani K. Madan
IPC分类号： A61B17/32
CPC分类号： A61B17/320068 , A61B2017/320069 , A61B2017/320071 , A61B2017/320077 , A61B2017/320089 , A61B2017/320098
摘要： An ultrasonic instrument comprises an ultrasonic transducer, an acoustic waveguide, and an ultrasonic blade. The blade includes a pair of obliquely extending edges. The obliquely extending edges diverge away from the longitudinal axis of the waveguide and away from each other along respective paths extending distally in relation to the waveguide. A distal portion of the blade is wider than a proximal portion of the blade along a plane. The blade further includes a curved distal edge and several laterally presented surfaces. The laterally presented surfaces may provide combinations of concave and convex curvatures. The laterally presented surfaces may be angled and/or curved along one or more orthogonal planes associated with the longitudinal axis of the waveguide.
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公开(公告)号：US11529164B2
公开(公告)日：2022-12-20
申请号：US16273214
申请日：2019-02-12
发明人： Foster B. Stulen , John B. Schulte , Jeffrey L. Aldridge , Jeffery T. Kirk , Randal T. Byrum , Douglas J. Turner , John M. Sarley , David A. Witt , William A. Olson , Kyle P. Moore
摘要： A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The end effector comprises an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade includes a recess region having a plurality of recesses. The recess region is tapered such that the cross-sectional area of the recess region decreases along the length of the recess region. The ultrasonic blade is also curved such that a central longitudinal axis of the ultrasonic blade extends along a curved path. A reference circuit is used to account for voltage drops of unknown values during operation of the surgical apparatus.
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公开(公告)号：US20240293143A1
公开(公告)日：2024-09-05
申请号：US18662040
申请日：2024-05-13
CPC分类号： A61B17/320068 , A61B90/03 , A61B2017/00402 , A61B2017/0046 , A61B2017/00477 , A61B2017/320069 , A61B2017/320071 , A61B2017/320089 , A61B2017/320098 , A61B50/00 , A61B2090/031 , A61B2090/0801
摘要： A surgical apparatus comprises a transducer assembly and a shaft assembly. The transducer assembly is operable to convert electrical power into ultrasonic vibrations. The shaft assembly comprises an ultrasonic waveguide, a sheath, a shroud, and a torque transfer assembly. The waveguide is configured to couple with the transducer assembly. The waveguide is disposed within the sheath. The sheath extends through the shroud. The torque transfer assembly is contained within the shroud. The torque transfer assembly is configured to transfer a predetermined range of torque from the shroud to the waveguide to thereby couple the waveguide with the transducer assembly. The torque transfer assembly is further configured to prevent transfer of torque from the shroud to the waveguide beyond an upper limit of the predetermined range.
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公开(公告)号：US12004768B2
公开(公告)日：2024-06-11
申请号：US17673219
申请日：2022-02-16
CPC分类号： A61B17/320068 , A61B90/03 , A61B2017/00402 , A61B2017/0046 , A61B2017/00477 , A61B2017/320069 , A61B2017/320071 , A61B2017/320089 , A61B2017/320098 , A61B50/00 , A61B2090/031 , A61B2090/0801
摘要： A surgical apparatus comprises a transducer assembly and a shaft assembly. The transducer assembly is operable to convert electrical power into ultrasonic vibrations. The shaft assembly comprises an ultrasonic waveguide, a sheath, a shroud, and a torque transfer assembly. The waveguide is configured to couple with the transducer assembly. The waveguide is disposed within the sheath. The sheath extends through the shroud. The torque transfer assembly is contained within the shroud. The torque transfer assembly is configured to transfer a predetermined range of torque from the shroud to the waveguide to thereby couple the waveguide with the transducer assembly. The torque transfer assembly is further configured to prevent transfer of torque from the shroud to the waveguide beyond an upper limit of the predetermined range.
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公开(公告)号：US20210338309A1
公开(公告)日：2021-11-04
申请号：US17320941
申请日：2021-05-14
发明人： David A. Witt , David C. Yates , Frederick E. Shelton, IV , Cory G. Kimball , Barry C. Worrell , Monica L. Z. Rivard
摘要： Aspects of the present disclosure include control systems of an electrosurgical system for managing the flow of fluid, such as saline, and rates of aspiration or suction, in response to various states of conditions at a surgical site. The control system(s) may monitor and adjust to impedance at the surgical site, temperature of the surgical tissue, and/or RF current of electrodes, and may account for certain undesirable conditions, such as the electrodes sticking. The control systems may include various automatic sensing scenarios, while also allowing for several manual conditions.
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公开(公告)号：US11744607B2
公开(公告)日：2023-09-05
申请号：US17128523
申请日：2020-12-21
CPC分类号： A61B17/320092 , A61N7/02 , A61B2017/0042 , A61B2017/00389 , A61B2017/00455 , A61B2017/00477 , A61B2017/00526 , A61B2017/2926 , A61B2017/2931 , A61B2017/2947 , A61B2017/320093 , A61B2017/320094 , A61B2018/0063 , A61B2018/00589 , A61B2018/00619 , A61B2090/0808 , A61B2090/0811 , A61B2090/0813 , A61N2007/0056
摘要： An apparatus includes a shaft assembly and an end effector. The shaft assembly includes a first coupling member and a second coupling member. The first coupling member and the second coupling member are configured to flex toward each other from a first position to a second position. The first coupling member and the second coupling member define a pivot axis in the first position. The end effector includes an ultrasonic blade and a clamp arm. The clamp arm is configured to couple or decouple with the shaft assembly when the first coupling member and the second coupling member are in the second position. The clamp arm is configured to pivot toward and away the ultrasonic blade about the pivot axis when the first coupling member and the second coupling member are in the first position.
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公开(公告)号：US20230404612A1
公开(公告)日：2023-12-21
申请号：US18461612
申请日：2023-09-06
发明人： Jeffrey D. Messerly , David A. Witt , Foster B. Stulen , Christopher A. Papa , Vincent P. Battaglia, JR.
IPC分类号： A61B17/32
CPC分类号： A61B17/320092 , A61B2017/320094 , A61B2017/320095 , A61B2017/320097 , A61B2017/320093
摘要： An apparatus for operating on tissue comprises a shaft, an acoustic waveguide, and an end effector. The acoustic waveguide extends along the shaft and is configured to transmit ultrasonic vibration. The end effector comprises an ultrasonic blade and a clamp arm. The ultrasonic blade is in acoustic communication with the acoustic waveguide. The clamp arm is pivotable toward the ultrasonic blade. The end effector defines a first longitudinal region and a second longitudinal region. The end effector is configured to clamp tissue between the clamp arm and the ultrasonic blade in the first longitudinal region. The end effector is configured to sever tissue with the ultrasonic blade in the second longitudinal region.
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公开(公告)号：US11839422B2
公开(公告)日：2023-12-12
申请号：US16997136
申请日：2020-08-19
发明人： David A. Witt , Frederick E. Shelton, IV , David C. Yates , Chad P. Boudreaux , Eric M. Roberson , Kevin L. Houser , Geoffrey S. Strobl
CPC分类号： A61B18/148 , A61B18/14 , A61B2018/0016 , A61B2018/00035 , A61B2018/00083 , A61B2018/00101 , A61B2018/00196 , A61B2018/00589 , A61B2018/00595 , A61B2018/00922 , A61B2218/002 , A61B2218/007 , A61M2025/0073
摘要： An end effector of an electrosurgical device may include a discharge port in communication with a first fluid path, an aspiration port in communication with a second fluid path, a first and second electrode, and a diverter in mechanical communication with the two electrodes. The diverter may receive, on its surface, a fluid emitted by the discharge port, and maintain a contact of the fluid with the first and second electrodes. The diverter may be further configured to prevent an aspiration, by the aspiration port, of the fluid on its surface. An electrosurgical device may include a source port in communication with a first fluid path, an evacuation port in communication with a second fluid path, a first and second electrode, and a housing. The device may include a shaft extending distally from the housing and the end effector as described above.
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公开(公告)号：US11786268B2
公开(公告)日：2023-10-17
申请号：US16941000
申请日：2020-07-28
发明人： Jeffrey D. Messerly , David A. Witt , Foster B. Stulen , Christopher A. Papa , Vincent P. Battaglia, Jr.
IPC分类号： A61B17/32
CPC分类号： A61B17/320092 , A61B2017/320093 , A61B2017/320094 , A61B2017/320095 , A61B2017/320097
摘要： An apparatus for operating on tissue comprises a shaft, an acoustic waveguide, and an end effector. The acoustic waveguide extends along the shaft and is configured to transmit ultrasonic vibration. The end effector comprises an ultrasonic blade and a clamp arm. The ultrasonic blade is in acoustic communication with the acoustic waveguide. The clamp arm is pivotable toward the ultrasonic blade. The end effector defines a first longitudinal region and a second longitudinal region. The end effector is configured to clamp tissue between the clamp arm and the ultrasonic blade in the first longitudinal region. The end effector is configured to sever tissue with the ultrasonic blade in the second longitudinal region.
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