Eric J Roberson

US Patent:

20230027481, Jan 26, 2023

Filed:

Oct 5, 2022

Appl. No.:

17/960289

Inventors:

- Zug, CH
Craig T. Davis - Cincinnati OH, US
Jeffrey W. Bullock - Cincinnati OH, US
Mark E. Tebbe - Lebanon OH, US
Shan Wan - Plymouth MN, US
Jeffrey L. Aldridge - Lebanon OH, US
Ryan M. Asher - Cincinnati OH, US
Kristen G. Denzinger - Cincinnati OH, US
Monica L. Z. Rivard - Cincinnati OH, US
Kevin A. Bash - Cincinnati OH, US
Eric M. Roberson - Lebanon OH, US

International Classification:

A61B 18/14
A61B 18/12

Abstract:

An end effector of an electrosurgical device may include a discharge port, an aspiration port, two electrodes, and a diverter formed from a porous material. The diverter includes a matrix having voids to receive fluid from the discharge port. A releasable diverter assembly may include an assembly body configured to receive a pair of electrodes and a diverter composed of a porous material. A shaft assembly of an electrosurgical device may include two electrodes and two fluid cannulae. Each cannula may be disposed proximate to a surface of each of the electrodes. An end effector of an electrosurgical device may include a fluid discharge port, two electrodes, and a diverter disposed therebetween. A proximal edge of the diverter may form a secant line with respect to the end of the discharge port so that fluid emitted by the discharge port is disposed on a surface of the diverter.

US Patent:

20200375651, Dec 3, 2020

Filed:

Aug 19, 2020

Appl. No.:

16/997136

Inventors:

- Guaynabo PR, US
David C. Yates - Morrow OH, US
Chad P. Boudreaux - Cincinnati OH, US
Eric M. Roberson - Lebanon OH, US
Kevin L. Houser - Springboro OH, US
Geoffrey S. Strobl - Williamsburg OH, US

International Classification:

A61B 18/14

Abstract:

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.

US Patent:

20200170665, Jun 4, 2020

Filed:

Nov 26, 2019

Appl. No.:

16/696336

Inventors:

- Guaynabo PR, US
Brian D. Black - Loveland OH, US
Chad P. Boudreaux - Cincinnati OH, US
Nathan Cummings - Worcester MA, US
William D. Dannaher - Cincinnati OH, US
Craig T. Davis - Cincinnati OH, US
Glenn W. Ellison - Maineville OH, US
Frederick L. Estera - Cincinnati OH, US
Jacob S. Gee - Cincinnati OH, US
Geni Giannotti - Allendale NJ, US
Timothy S. Holland - Madison WI, US
Kevin L. Houser - Springboro OH, US
Gregory W. Johnson - Milford OH, US
Amy M. Krumm - Cincinnati OH, US
Jason R. Lesko - Cincinnati OH, US
Stephen M. Leuck - Milford OH, US
Ion V. Nicolaescu - Carpentersville IL, US
Candice Otrembiak - Loveland OH, US
Amelia A. Pierce - Cincinnati OH, US
Eric Roberson - Cincinnati OH, US
Shan Wan - Mason OH, US

International Classification:

A61B 17/32

Abstract:

An ultrasonic instrument includes a housing, an ultrasonic transducer support by the housing, and an integrated usage indicator. The housing is configured to removably connect to a shaft assembly. The ultrasonic transducer is configured to be acoustically connected to a waveguide and operated a predetermined number of use cycles. The integrated usage indicator is operatively connected to the housing and includes a used state indicator. The used state indicator is configured to indicate to a clinician in a used state when the ultrasonic transducer has been operated at least the predetermined number of use cycles for limiting usage of the ultrasonic transducer to the predetermined number of use cycles.

US Patent:

20200138472, May 7, 2020

Filed:

Oct 25, 2019

Appl. No.:

16/664276

Inventors:

- Guaynabo PR, US
Jeffrey A. Bullock - Cincinnati OH, US
Eric Roberson - Cincinnati OH, US
Jeffrey L. Aldridge - Lebanon OH, US
Stephen M. Leuck - Milford OH, US

International Classification:

A61B 17/32
A61B 90/98
A61B 90/90
A61B 90/00
A61B 18/14

Abstract:

An apparatus includes a body, a shaft assembly, an end effector portion, a data storage component, a reader, and a use control. The shaft assembly extends distally from the body and includes a support portion. The end effector portion is configured to selectively couple with the support portion of the shaft assembly. The data storage component is associated with the end effector portion and contains data uniquely associated with the end effector portion. The reader is adapted to read the data from the data storage component. The use control is adapted to enable operation of the end effector portion if the data meets at least one usage parameter.

US Patent:

20190274705, Sep 12, 2019

Filed:

Sep 27, 2018

Appl. No.:

16/144351

Inventors:

- Guaynabo PR, US
Stephen M. Leuck - Milford OH, US
Brian D. Black - Loveland OH, US
Eric M. Roberson - Lebanon OH, US

International Classification:

A61B 17/32
A61B 17/3211
A61B 18/14
A61B 18/12
A61B 17/00

Abstract:

A method of controlling the temperature of an ultrasonic blade includes applying a power level to an ultrasonic transducer to achieve a desired temperature at an ultrasonic blade coupled to the transducer via an ultrasonic waveguide, inferring a temperature of the blade based on a voltage V(t) signal and a current I(t) signal applied to the transducer, comparing the inferred temperature of the blade to a predetermined temperature; and adjusting the power level to the transducer based on the comparison. In some aspects, the method includes measuring a phase angle φ between the voltage V(t) and the current I(t) and inferring the temperature of the blade from the phase angle φ. In some aspects, the method includes measuring an impedance Z(t) equal to a ratio of the voltage V(t) to the current I(t) and inferring the temperature of the blade from the impedance Z(t).

US Patent:

20190274706, Sep 12, 2019

Filed:

Sep 27, 2018

Appl. No.:

16/144383

Inventors:

- Guaynabo PR, US
Foster B. Stulen - Mason OH, US
Fergus P. Quigley - Mason OH, US
John E. Brady - Cincinnati OH, US
Gregory A. Trees - Loveland OH, US
Amrita S. Sawhney - Cincinnati OH, US
Patrick J. Scoggins - Loveland OH, US
Kristen G. Denzinger - Cincinnati OH, US
Craig N. Faller - Batavia OH, US
Madeleine C. Jayme - Cincinnati OH, US
Alexander R. Cuti - Pittsburgh PA, US
Matthew S. Schneider - Blue Ash OH, US
Chad P. Boudreaux - Cincinnati OH, US
Brian D. Black - Loveland OH, US
Maxwell T. Rockman - Cincinnati OH, US
Gregory D. Bishop - Hamilton OH, US
Eric M. Roberson - Lebanon OH, US
Stephen M. Leuck - Milford OH, US
James M. Wilson - Cincinnati OH, US

International Classification:

A61B 17/32
A61B 17/3211
A61B 18/14
A61B 18/12
A61B 17/00

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 disclsoed. 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 asThe 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.

US Patent:

20190274707, Sep 12, 2019

Filed:

Sep 27, 2018

Appl. No.:

16/144397

Inventors:

- Guaynabo PR, US
Eric M. Roberson - Lebanon OH, US
Stephen M. Leuck - Milford OH, US
Brian D. Black - Loveland OH, US

International Classification:

A61B 17/32
A61B 17/3211
A61B 18/14
A61B 18/12
A61B 17/00

Abstract:

An ultrasonic device may include an electromechanical ultrasonic system having a resonant frequency, the system including a transducer coupled to an ultrasonic blade. A method of driving the blade may include determining a tissue type contacting the blade, setting current delivered to the transducer to achieve a desired blade temperature, and setting a desired period during which the desired temperature is applied to the tissue. The tissue type may be determined by measuring an impedance of the transducer, comparing an impedance measurement data point to a reference data point, and classifying the impedance measurement data point based on a result of the comparison. Alternatively, the tissue type may be determined by applying a drive signal to the transducer, sweeping the frequency of the drive signal from below to above a resonance of the ultrasonic system, measuring and recording impedance/admittance variables, and comparing the measured variables to reference variables

US Patent:

20190274717, Sep 12, 2019

Filed:

Sep 27, 2018

Appl. No.:

16/144335

Inventors:

- Guaynabo PR, US
Fergus P. Quigley - Mason OH, US
Amrita S. Sawhney - Cincinnati OH, US
Stephen M. Leuck - Milford OH, US
Brian D. Black - Loveland OH, US
Eric M. Roberson - Lebanon OH, US
Kristen G. Denzinger - Cincinnati OH, US
Patrick J. Scoggins - Loveland OH, US
Craig N. Faller - Batavia OH, US
Madeleine C. Jayme - Cincinnati OH, US
Jacob S. Gee - Cincinnati OH, US

International Classification:

A61B 17/32

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