公开(公告)号：US11559308B2

公开(公告)日：2023-01-24

申请号：US16209458

申请日：2018-12-04

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: A61B17/32 ,  A61B17/115 ,  A61M1/00 ,  A61B34/20 ,  A61B34/32 ,  A61B34/00 ,  A61B90/35 ,  A61B90/00 ,  G16H40/67 ,  G16H10/60 ,  G16H50/20 ,  G16H40/63 ,  G16H70/20 ,  A61B1/00 ,  A61B1/05 ,  A61B1/06 ,  A61B5/00 ,  A61B5/026 ,  A61B6/00 ,  A61B17/068 ,  A61B17/072 ,  A61B17/11 ,  A61B17/128 ,  A61B18/14 ,  B25J9/16 ,  B25J13/00 ,  G06K7/10 ,  G06K19/077 ,  H01Q1/22 ,  H04L9/40 ,  H04L67/10 ,  H04L67/12 ,  H04N5/272 ,  H04N7/18 ,  H05K1/02 ,  H05K1/18 ,  A61B17/00 ,  A61B34/30 ,  A61B90/30 ,  A61B18/00 ,  A61M13/00

Abstract: A method for characterizing a state of an end effector of an ultrasonic device is disclosed. The ultrasonic device including an electromechanical ultrasonic system defined by a predetermined resonant frequency. The electromechanical ultrasonic system further including an ultrasonic transducer coupled to an ultrasonic blade. The method including applying, by an energy source, a power level to the ultrasonic transducer; measuring, by a control circuit coupled to a memory, an impedance value of the ultrasonic transducer; comparing, by the control circuit, the impedance value to a reference impedance value stored in the memory; classifying, by the control circuit, the impedance value based on the comparison; characterizing, by the control circuit, the state of the electromechanical ultrasonic system based on the classification of the impedance value; and adjusting, by the control circuit, the power level applied to the ultrasonic transducer based on the characterization of the state of the end effector.

公开(公告)号：US20230000518A1

公开(公告)日：2023-01-05

申请号：US17834397

申请日：2022-06-07

Applicant: Cilag GmbH International

Inventor： Cameron R. Nott ,  Foster B. Stulen ,  Fergus P. Quigley ,  John E. Brady ,  Gregory A. Trees ,  Amrita S. Sawhney ,  Patrick J. Scoggins ,  Kristen G. Denzinger ,  Craig N. Faller ,  Madeleine C. Jayme ,  Alexander R. Cuti ,  Matthew S. Schneider ,  Chad P. Boudreaux ,  Brian D. Black ,  Maxwell T. Rockman ,  Gregory D. Bishop ,  Eric M. Roberson ,  Stephen M. Leuck ,  James M. Wilson

IPC: A61B17/32 ,  A61B18/12 ,  A61B18/14 ,  A61B17/3211 ,  A61B17/00 ,  A61B17/22

Abstract: Various aspects of a generator, ultrasonic device, and method for estimating and controlling a state of an end effector of an ultrasonic device are disclosed. The ultrasonic device includes an electromechanical ultrasonic system defined by a predetermined resonant frequency, including an ultrasonic transducer coupled to an ultrasonic blade. A control circuit measures a complex impedance of an ultrasonic transducer, wherein the complex impedance as defined as Z g ( t ) = V g ( t ) I g ( t ) ; The control circuit receives a complex impedance measurement data point and compares the complex impedance measurement data point to a data point in a reference complex impedance characteristic pattern. The control circuit then classifies the complex impedance measurement data point based on a result of the comparison analysis and assigns a state or condition of the end effector based on the result of the comparison analysis. The control circuit estimates the state of the end effector of the ultrasonic device and controls the state of the end effector of the ultrasonic device based on the estimated state.

公开(公告)号：US12133660B2

公开(公告)日：2024-11-05

申请号：US17128552

申请日：2020-12-21

Applicant: Cilag GmbH International

Inventor： Cameron R. Nott ,  Fergus P. Quigley ,  Frederick E. Shelton, IV ,  Kevin L. Houser ,  David C. Yates ,  Patrick J. Scoggins ,  Craig N. Faller ,  Madeleine C. Jayme

IPC: A61B17/32 ,  A61B5/06 ,  A61B17/072 ,  A61B17/295 ,  A61B18/12 ,  A61B18/14 ,  A61B34/37 ,  A61B90/00 ,  A61B90/30 ,  A61B17/00 ,  A61B18/00 ,  A61B34/00 ,  A61B34/30

Abstract: An ultrasonic electromechanical system for an ultrasonic surgical instrument may include an ultrasonic blade, a clamp arm disposed opposite the ultrasonic blade, an ultrasonic transducer configured to oscillate the ultrasonic blade in response to a drive signal, and a control circuit coupled to the ultrasonic transducer. The control circuit can be configured to determine a temperature of the ultrasonic blade, increase an amount of power of the drive signal when the temperature of the ultrasonic blade is less than a first predetermined value, and decrease the amount of power of the drive signal when the temperature of the ultrasonic blade is greater than a second predetermined value. The second predetermined value may be greater than the first predetermined value. An ultrasonic generator connectable to the ultrasonic electromechanical system may include the control circuit.

公开(公告)号：US11707293B2

公开(公告)日：2023-07-25

申请号：US16144345

申请日：2018-09-27

Applicant: Cilag GmbH International

Inventor： Kristen G. Denzinger ,  Cameron R. Nott ,  Madeleine C. Jayme ,  Patrick J. Scoggins ,  Craig N. Faller

IPC: A61B17/22 ,  A61B17/32 ,  A61B17/00 ,  A61B18/12 ,  A61B18/14 ,  A61B17/3211 ,  A61B18/00 ,  A61B17/28 ,  A61B34/30 ,  A61B34/10 ,  A61B90/00

CPC classification number: A61B17/320068 ,  A61B17/00234 ,  A61B17/22012 ,  A61B17/3211 ,  A61B17/320092 ,  A61B18/12 ,  A61B18/1206 ,  A61B18/1233 ,  A61B18/14 ,  A61B18/1442 ,  A61B18/1445 ,  A61B17/282 ,  A61B34/30 ,  A61B90/361 ,  A61B2017/0003 ,  A61B2017/00017 ,  A61B2017/00022 ,  A61B2017/00026 ,  A61B2017/00039 ,  A61B2017/00061 ,  A61B2017/00075 ,  A61B2017/0084 ,  A61B2017/00084 ,  A61B2017/00106 ,  A61B2017/00115 ,  A61B2017/00137 ,  A61B2017/00146 ,  A61B2017/00154 ,  A61B2017/00199 ,  A61B2017/00221 ,  A61B2017/00398 ,  A61B2017/00464 ,  A61B2017/00477 ,  A61B2017/00482 ,  A61B2017/22014 ,  A61B2017/2825 ,  A61B2017/32007 ,  A61B2017/320073 ,  A61B2017/320074 ,  A61B2017/320084 ,  A61B2017/320094 ,  A61B2017/320095 ,  A61B2017/320097 ,  A61B2018/0063 ,  A61B2018/00589 ,  A61B2018/00595 ,  A61B2018/00601 ,  A61B2018/00607 ,  A61B2018/00619 ,  A61B2018/00648 ,  A61B2018/00684 ,  A61B2018/00702 ,  A61B2018/00791 ,  A61B2018/00827 ,  A61B2018/00875 ,  A61B2018/00886 ,  A61B2018/00892 ,  A61B2018/00994 ,  A61B2018/126 ,  A61B2018/128 ,  A61B2018/1253 ,  A61B2018/1412 ,  A61B2018/1452 ,  A61B2034/107 ,  A61B2090/065 ,  A61B2090/066 ,  A61B2090/0808 ,  A61B2090/0809 ,  A61B2090/0811 ,  A61B2217/005 ,  A61B2218/002 ,  A61B2218/008

Abstract: A method of ultrasonic sealing includes activating an ultrasonic blade temperature sensing, measuring a first resonant frequency of an ultrasonic electromechanical system that includes a transducer coupled to the blade via a waveguide, making a first comparison between the measured first resonant frequency and a first predetermined resonant frequency, and adjusting a power level applied to the transducer based on the first comparison. The first predetermined frequency may correspond to an optimal tissue coagulation temperature. The method may further include measuring a second resonant frequency of the system, making a second comparison between the measured second frequency and a second predetermined frequency, and adjusting the power level based on the second comparison. The second predetermined frequency may correspond a melting point temperature of a clamp arm pad. An ultrasonic instrument and a generator may implement the method.

公开(公告)号：US11678901B2

公开(公告)日：2023-06-20

申请号：US16144434

申请日：2018-09-27

Applicant: Cilag GmbH International

Inventor： Patrick J. Scoggins ,  Madeleine C. Jayme ,  Kristen G. Denzinger ,  Cameron R. Nott ,  Craig N. Faller

IPC: A61B17/32 ,  A61B18/12 ,  A61B18/14 ,  A61B34/30 ,  A61B18/00 ,  A61B17/00 ,  A61B17/3211 ,  A61B17/22 ,  A61B17/28 ,  A61B34/10 ,  A61B90/00

CPC classification number: A61B17/320068 ,  A61B17/00234 ,  A61B17/22012 ,  A61B17/3211 ,  A61B17/320092 ,  A61B18/12 ,  A61B18/1206 ,  A61B18/1233 ,  A61B18/14 ,  A61B18/1442 ,  A61B18/1445 ,  A61B17/282 ,  A61B34/30 ,  A61B90/361 ,  A61B2017/0003 ,  A61B2017/00017 ,  A61B2017/00022 ,  A61B2017/00026 ,  A61B2017/00039 ,  A61B2017/00061 ,  A61B2017/00075 ,  A61B2017/0084 ,  A61B2017/00084 ,  A61B2017/00106 ,  A61B2017/00115 ,  A61B2017/00137 ,  A61B2017/00146 ,  A61B2017/00154 ,  A61B2017/00199 ,  A61B2017/00221 ,  A61B2017/00398 ,  A61B2017/00464 ,  A61B2017/00477 ,  A61B2017/00482 ,  A61B2017/22014 ,  A61B2017/2825 ,  A61B2017/32007 ,  A61B2017/320073 ,  A61B2017/320074 ,  A61B2017/320084 ,  A61B2017/320094 ,  A61B2017/320095 ,  A61B2017/320097 ,  A61B2018/0063 ,  A61B2018/00589 ,  A61B2018/00595 ,  A61B2018/00601 ,  A61B2018/00607 ,  A61B2018/00619 ,  A61B2018/00648 ,  A61B2018/00684 ,  A61B2018/00702 ,  A61B2018/00791 ,  A61B2018/00827 ,  A61B2018/00875 ,  A61B2018/00886 ,  A61B2018/00892 ,  A61B2018/00994 ,  A61B2018/126 ,  A61B2018/128 ,  A61B2018/1253 ,  A61B2018/1412 ,  A61B2018/1452 ,  A61B2034/107 ,  A61B2090/065 ,  A61B2090/066 ,  A61B2090/0808 ,  A61B2090/0809 ,  A61B2090/0811 ,  A61B2217/005 ,  A61B2218/002 ,  A61B2218/008

Abstract: An ultrasonic device may include an electromechanical ultrasonic system that includes an ultrasonic transducer coupled to an ultrasonic blade. A method of delivering energy to the ultrasonic device may include sensing a vessel type in contact with the blade, determining that the vessel type is either a vein or an artery, and delivering power to the transducer based on the vessel type. Power may be applied to the transducer at a power level P that differs from a nominal power level Pn for a period T that differs from a nominal period Tn based on the vessel. The power level P may be lower than Pn for a period T that is longer than Tn when the vessel is a vein. Alternatively, the power level P my be greater than Pn for a period T that is shorter than Tn when the vessel is an artery.

公开(公告)号：US11612408B2

公开(公告)日：2023-03-28

申请号：US16115232

申请日：2018-08-28

Applicant: Cilag GmbH International

Inventor： David C. Yates ,  Jason L. Harris ,  Frederick E. Shelton, IV ,  Kevin L. Houser ,  John E. Brady ,  Gregory A. Trees ,  Patrick J. Scoggins ,  Madeleine C. Jayme ,  Kristen G. Denzinger ,  Cameron R. Nott ,  Craig N. Faller ,  Amrita S. Sawhney ,  Eric M. Roberson ,  Stephen M. Leuck ,  Brian D. Black

IPC: A61B17/32 ,  A61B34/37 ,  A61B90/30 ,  A61B90/00 ,  A61B17/072 ,  A61B17/295 ,  A61B18/12 ,  A61B18/14 ,  A61B5/06 ,  A61B34/00 ,  A61B34/30 ,  A61B17/00 ,  A61B18/00

Abstract: Various systems and methods for determining the composition of tissue via an ultrasonic surgical instrument are disclosed. A control circuit can be configured to monitor the change in resonant frequency of an ultrasonic electromechanical system of the ultrasonic surgical instrument as the ultrasonic blade oscillates against a tissue and determine the composition of the tissue accordingly. In some aspects, the control circuit can be configured to modify the operation of the ultrasonic electromechanical system or other operational parameters of the ultrasonic surgical instrument according to the detected tissue composition.

公开(公告)号：US20220395318A1

公开(公告)日：2022-12-15

申请号：US17856604

申请日：2022-07-01

Applicant: Cilag GmbH International

Inventor： Cameron R. Nott ,  Gregory A. Trees

IPC: A61B18/14

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.

公开(公告)号：US20220370126A1

公开(公告)日：2022-11-24

申请号：US17835579

申请日：2022-06-08

Applicant: Cilag GmbH International

Inventor： Frederick E. Shelton, IV ,  David C. Yates ,  Cameron R. Nott ,  Tamara S, Widenhouse ,  Jason L. Harris

IPC: A61B18/16 ,  A61B17/29 ,  A61B18/12 ,  A61B34/30 ,  A61B90/30 ,  A61B90/00 ,  A61B17/072 ,  A61B17/32 ,  A61B18/14

Abstract: A return pad of an electrosurgical system is disclosed. The return pad includes a plurality of conductive members and a plurality of sensing devices. The conductive members are configured to receive radio frequency current applied to a patient. The sensing devices are configured to detect at least one of the following: a nerve control signal applied to the patient; and a movement of an anatomical feature of the patient resulting from application of the nerve control signal.

公开(公告)号：US20220323095A1

公开(公告)日：2022-10-13

申请号：US17667657

申请日：2022-02-09

Applicant: Cilag GmbH International

Inventor： Cameron R. Nott ,  Fergus P. Quigley ,  Amrita S. Sawhney ,  Stephen M. Leuck ,  Brian D. Black ,  Eric M. Roberson ,  Kristen G. Denzinger ,  Patrick J. Scoggins ,  Craig N. Faller ,  Madeleine C. Jayme ,  Jacob S. Gee

IPC: A61B17/32 ,  A61B17/00 ,  A61B17/22 ,  A61B17/3211 ,  A61B18/12 ,  A61B18/14

Abstract: A generator, ultrasonic device, and method for controlling a temperature of an ultrasonic blade are disclosed. A control circuit coupled to a memory determines an actual resonant frequency of an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade by an ultrasonic waveguide. The actual resonant frequency is correlated to an actual temperature of the ultrasonic blade. The control circuit retrieves from the memory a reference resonant frequency of the ultrasonic electromechanical system. The reference resonant frequency is correlated to a reference temperature of the ultrasonic blade. The control circuit then infers the temperature of the ultrasonic blade based on the difference between the actual resonant frequency and the reference resonant frequency. The control circuit controls the temperature of the ultrasonic blade based on the inferred temperature

公开(公告)号：US11344326B2

公开(公告)日：2022-05-31

申请号：US16144455

申请日：2018-09-27

Applicant: Cilag GmbH International

Inventor： Craig N. Faller ,  Madeleine C. Jayme ,  Cameron R. Nott

IPC: A61B17/32 ,  A61B18/12 ,  A61B18/14 ,  A61B17/3211 ,  A61B17/00 ,  A61B17/22 ,  A61B18/00 ,  A61B17/28 ,  A61B34/30 ,  A61B34/10 ,  A61B90/00

Abstract: A method of determining instability of an ultrasonic blade includes monitoring a phase angle φ between voltage Vg(t) and current Ig(t) signals applied to an ultrasonic transducer, coupled to an ultrasonic blade via an ultrasonic waveguide, inferring the blade temperature based on the phase angle φ, comparing the inferred temperature to an ultrasonic blade instability trigger point threshold, and adjusting a power level applied to the ultrasonic transducer to modulate the temperature of the blade. The method may also include determining a frequency/temperature relationship of an ultrasonic blade that exhibits a displacement or modal instability and compensating for a thermal induced instability of the ultrasonic blade. The method may be implemented in an ultrasonic surgical instrument or by a control circuit in a power generator for the ultrasonic surgical instrument.