Cilag International Gmbh

Ethicon, Gmbh

Madeleine C Jayme

Kristen G Denzinger

Craig N Faller

Cameron R Nott

Patrick Jarvis Scoggins

Brian D Black

Stephen M Leuck

Amrita Singh Sawhney

Fergus P Quigley

Eric M Roberson

Frederick E Shelton, IV

Gregory A Trees

John E Brady

David C Yates

Ryan M Asher

Foster B Stulen

Gregory D Bishop

Alexander R Cuti

Matthew S Schneider

Maxwell T Rockman

Chad Paul Boudreaux

Jacob Spencer Gee

Joshua Henderson

Kevin L Houser

Brendan J Oberkircher

Rafael J Ruiz Ortiz

John A Weed, Iii

Stephen D Geresy

James M Wilson

Jason L Harris

William Bruce Weisenburgh, Ii

William B Weisenburgh

Wells D Haberstich

Tamara S Widenhouse

Amrita S Sawhney

Eitan T Wiener

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 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.

Methods for estimating and controlling state of ultrasonic end effector

Various aspects of a generator, ultrasonic device, and method for estimating 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 is defined as Z(t)=V(t)/I(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.

Estimating state of ultrasonic end effector and control system therefor

Disclosed is a method of assembling a backplane connector subassembly for a module of a modular energy system. The backplane connector subassembly physically and electrically connects at least two modules stacked on top of one another. The method includes providing a back panel defining an inner surface, attaching a first support member to the inner surface of the back panel, attaching a second support member to the inner surface of the back panel, attaching the upstream connector to the back panel by sliding a first mating hole defined in the upstream connector onto the first support member, and attaching the downstream connector to the back panel by a sliding a second mating hole defined in the downstream connector onto the second support member. The first support member is configured to support an upstream connector. The second support member is configured to support a downstream connector.

Modular energy system

Disclosed is a modular energy system that comprises a first module, comprising a first panel, and a first connector attached to the first panel. A portion of the first connector extends past a first edge of the first panel. The modular energy system further comprises a second module, comprising a second panel, and a second connector attached to the second panel. The second connector is aligned with a second edge of the second panel, and the second connector defines a cavity. The second module is coupled to the first module, wherein the portion of the first connector that extends past the first edge of the first panel is positioned within the cavity defined by the second connector.

Backplane connector attachment mechanism for modular energy system

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.

Controlling a temperature of an ultrasonic electromechanical blade according to frequency

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.

Methods for controlling temperature in ultrasonic device

Various aspects of a generator, ultrasonic device, and method for estimating 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 is defined as 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.

Method for mechanical packaging for modular energy system

A port module removably coupleable to an energy module of a module energy system is disclosed. The port module includes a light pipe and a receptacle defined by the light pipe. The receptacle is configured to receive a plug of an electrosurgical instrument therein. A seal is defined between the light pipe and the receptacle.

Bezel with light blocking features for modular energy system

An ultrasonic device may include an ultrasonic system including a transducer coupled to an ultrasonic blade, A method of delivering energy to the device may include sensing a vessel contacting the blade, identifying that the vessel is calcified, and generating a warning. In some aspects, the method further includes disabling one or more activation functions of the blade. In another aspect, the method further includes generating a message to apply compression to the vessel for a predetermined period, disabling activation functions of the blade during compression, and enabling activation functions after the expiration of the compression period. In yet another aspect, the method includes applying a compressive clamp force to the calcified vessel by driving a clamp arm toward the blade, disabling activation functions of the blade during compression, and enabling the activation functions after adjusting the compressive force. An ultrasonic surgical instrument may effect the method.

Calcified vessel identification

A method of controlling the application of energy to a radio frequency (RF) instrument based on a surgical technique may include activating the instrument for a first period T1, during which time a portion of an end effector contacts a tissue, plotting at least two electrical parameters associated with the tissue to classify an amount of the end effector in contact with the tissue, applying a classification algorithm to classify the amount of the end effector in contact with the tissue, and applying an amount of energy to the end effector based on the amount of the end effector in contact with the tissue. The parameters may include a minimum impedance of the tissue and an amount of time that the impedance slope is &#x2dc;0. The end effector may contact the tissue with a tip end or with an entire surface.

Fine dissection mode for tissue classification

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.

Ultrasonic sealing algorithm with temperature control

A first module configured to engage with a second module in a stacked configuration to define a modular energy system is provided. The second module comprises a second bridge connector portion that comprises a second outer housing and a second electrical connection element. The first module comprises a first bridge connector portion comprising a first outer housing and a first electrical connection element. The first outer housing is configured to engage the second outer housing during assembly of the modular energy system prior to the first electrical connection element engaging the second electrical connection element.

Backplane connector design to connect stacked energy modules

A first module configured to engage with a second module in a stacked configuration to define a modular energy system is provided. The first module comprises a first bridge connector portion and a second conductive portion. The first bridge connector portion is configured to engage with a second bridge connector portion of the second module as the first module and the second module are engaged. The first conductive portion is configured to engage with a second conductive portion of the second module as the first module and the second module are engaged, prior to engagement between the first bridge connector portion and the second bridge connector portion.

Growing community of inventors

Cincinnati, OH, United States of America

Madeleine C Jayme