Patents by Inventor Ashvani K. Madan

Ashvani K. Madan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190239918
    Abstract: A surgical instrument comprises a body assembly and an end effector. The body assembly includes a control module, an orientation sensor communicatively coupled to the control module, and an energy component. The energy component is operable to activate the end effector at a plurality of energy settings. A storage device is communicatively coupled to the control module and includes a plurality of gesture profiles and corresponding energy settings. The control module is configured to set the energy setting of the energy component to a corresponding energy setting in response to a correlation between the output of the orientation sensor and a gesture profile. In some versions, the control module modifies the energy setting based upon output from a force sensor that measures the force on the end effector. The control module may also decrease the energy setting in response to an anomalous acceleration or deceleration detected by an accelerometer.
    Type: Application
    Filed: February 4, 2019
    Publication date: August 8, 2019
    Inventors: Daniel W. Price, Sora Rhee, Cory G. Kimball, Timothy G. Dietz, Ashvani K. Madan, Donna L. Korvick, Jeffrey D. Messerly, William E. Clem, Jacqueline C. Aronhalt, William D. Dannaher, John B. Schulte, Danius P. Silkaitis, Stephen J. Balek, Michael R. Lamping
  • Patent number: 10368894
    Abstract: An ultrasonic instrument includes a body and a shaft assembly extending distally from the body. The shaft assembly includes an acoustic waveguide. The instrument further includes an end effector including an ultrasonic blade. The ultrasonic blade is in acoustic communication with the acoustic waveguide. The instrument further includes a sensor configured to sense at least one characteristic of the shaft assembly and/or the end effector. The end effector is configured to be activated at varying power levels based on the at least one characteristic sensed by the sensor.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: August 6, 2019
    Assignee: Ethicon LLC
    Inventors: Ashvani K. Madan, David C. Groene, Benjamin M. Boyd, Craig N. Faller, Jacob S. Gee, Paul F. Riestenberg
  • Patent number: 10368957
    Abstract: A surgical instrument includes a shaft assembly, an ultrasonic blade, and a cleaning device. The shaft assembly includes a first tube and an acoustic waveguide. The first tube has a first inner diameter and a distal end. The waveguide has a first outer diameter. The waveguide extends within the first tube. The first outer diameter of the acoustic waveguide and the first inner diameter of the first tube together define a gap. The ultrasonic blade extends distally from the distal end of the first tube. The acoustic waveguide is configured to communicate ultrasonic energy to the ultrasonic blade. The cleaning device is configured to actuate within the gap to thereby clean at least a portion of the shaft assembly and/or at least a portion of the ultrasonic blade.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: August 6, 2019
    Assignee: Ethicon LLC
    Inventors: Kristen G. Denzinger, Ashvani K. Madan, Cory G. Kimball, Robert A. Kemerling, John A. Hibner, Rafael J. Ruiz Ortiz, Catherine A. Corbett, Michael R. Lamping, Thomas B. Remm
  • Publication number: 20190216490
    Abstract: 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.
    Type: Application
    Filed: January 16, 2019
    Publication date: July 18, 2019
    Inventors: Cory G. Kimball, David A. Witt, William E. Clem, Nathan D. Grubbs, Daniel J. Prenger, Ashvani K. Madan
  • Patent number: 10327798
    Abstract: A surgical instrument comprises a body assembly and an end effector. The body assembly includes a control module, an orientation sensor communicatively coupled to the control module, and an energy component. The energy component is operable to activate the end effector at a plurality of energy settings. A storage device is communicatively coupled to the control module and includes a plurality of gesture profiles and corresponding energy settings. The control module is configured to set the energy setting of the energy component to a corresponding energy setting in response to a correlation between the output of the orientation sensor and a gesture profile. In some versions, the control module modifies the energy setting based upon output from a force sensor that measures the force on the end effector. The control module may also decrease the energy setting in response to an anomalous acceleration or deceleration detected by an accelerometer.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: June 25, 2019
    Assignee: Ethicon LLC
    Inventors: Daniel W. Price, Sora Rhee, Cory G. Kimball, Timothy G. Dietz, Ashvani K. Madan, Donna L. Korvick, Jeffrey D. Messerly, William E. Clem, Jacqueline C. Aronhalt, William D. Dannaher, John B. Schulte, Danius P. Silkaitis, Stephen J. Balek, Michael R. Lamping
  • Publication number: 20190133635
    Abstract: A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, an acoustic waveguide, an articulation section, an end effector, and an articulation drive assembly. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The acoustic waveguide is coupled with the transducer. The articulation section includes a collar that is located distal to a nodal portion of the waveguide and is operable to deflect the end effector away from the longitudinal axis. The end effector comprises an ultrasonic blade in acoustic communication with the ultrasonic transducer. The articulation drive assembly is operable to drive articulation of the articulation section. The articulation drive assembly comprises at least one translating articulation driver coupled with the collar. The ultrasonic blade is operable to deliver ultrasonic vibrations to tissue even when the articulation section is in an articulated state.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 9, 2019
    Inventors: Foster B. Stulen, David A. Monroe, William B. Weisenburgh, II, Richard C. Smith, Ashvani K. Madan, Craig T. Davis, Barry C. Worrell, Benjamin D. Dickerson, Chad P. Boudreaux, Geoffrey S. Strobl, Thomas C. Gallmeyer, Amy L. Benchek, Tylor C. Muhlenkamp, Sean P. Conlon, John A. Hibner
  • Patent number: 10258361
    Abstract: An ultrasonic instrument for use during a surgical procedure includes a body, a shaft assembly, an ultrasonic blade, and an actuation assembly. The body is configured to receive an ultrasonic transducer for selectively generating a first or a second predetermined oscillation. The shaft assembly projects from the body and includes an acoustic waveguide connected to the ultrasonic blade. The actuation assembly includes an activator ring and an activation mechanism. The activator ring is selectively movable along the body such that the activator ring is accessible to be gripped by an operator around an entirety of an outer circumferential surface of the activator ring. The activation mechanism is connected to the activator ring such that the activation mechanism selectively moves along the body in conjunction with the activator ring. At least a portion of the activation mechanism is configured to selectively direct the ultrasonic transducer to oscillate the ultrasonic blade.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: April 16, 2019
    Assignee: Ethicon LLC
    Inventors: Benjamin D. Dickerson, Cory G. Kimball, Tylor C. Muhlenkamp, Kristen G. Denzinger, Chester O. Baxter, III, Ashvani K. Madan
  • Patent number: 10226271
    Abstract: 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.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: March 12, 2019
    Assignee: Ethicon LLC
    Inventors: Cory G. Kimball, David A. Witt, William E. Clem, Nathan D. Grubbs, Daniel J. Prenger, Ashvani K. Madan
  • Patent number: 10172636
    Abstract: A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, an acoustic waveguide, an articulation section, an end effector, and an articulation drive assembly. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The acoustic waveguide is coupled with the transducer. The articulation section includes a collar that is located distal to a nodal portion of the waveguide and is operable to deflect the end effector away from the longitudinal axis. The end effector comprises an ultrasonic blade in acoustic communication with the ultrasonic transducer. The articulation drive assembly is operable to drive articulation of the articulation section. The articulation drive assembly comprises at least one translating articulation driver coupled with the collar. The ultrasonic blade is operable to deliver ultrasonic vibrations to tissue even when the articulation section is in an articulated state.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: January 8, 2019
    Assignee: Ethicon LLC
    Inventors: Foster B. Stulen, David A. Monroe, William B. Weisenburgh, II, Richard C. Smith, Ashvani K. Madan, Craig T. Davis, Barry C. Worrell, Benjamin D. Dickerson, Chad P. Boudreaux, Thomas C. Gallmeyer, Amy L. Benchek, Tylor C. Muhlenkamp, Sean P. Conlon, John A. Hibner
  • Publication number: 20180333190
    Abstract: An ultrasonic surgical instrument and method of sealing a tissue includes generating a desired burst pressure in the tissue, sealing the tissue, verifying that the tissue is sealed with further application of at least one of the ultrasonic energy and the RF energy. The ultrasonic surgical instrument further includes an end effector having an ultrasonic blade, an RF electrode, and a controller. The controller operatively connects to the ultrasonic blade and the RF electrode and is configured to direct application of ultrasonic and RF energies according to an initial phase, a power phase, and a termination phase for respectively generating a desired burst pressure in the tissue, sealing the tissue, and verifying the sealing of the tissue while inhibiting transection of the tissue.
    Type: Application
    Filed: May 1, 2018
    Publication date: November 22, 2018
    Inventors: Amy M. Krumm, Ashvani K. Madan
  • Patent number: 10080813
    Abstract: An apparatus for aseptic insertion includes a container, a first cover, and a second cover. The container includes a first compartment, a second compartment, and a detachable wall disposed between the first compartment and the second compartment. The first cover is sized and configured to attach to the first compartment and the second cover is sized and configured to attach to the container. The detachable wall may defined by a top portion, a portion of a first distal wall of the first compartment, and a portion of a second proximal wall of the second compartment. The detachable wall may be removably attached to the first cover by the top portion of the detachable wall.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: September 25, 2018
    Assignee: Ethicon LLC
    Inventors: Kevin D. Felder, Michael J. Stokes, Christopher B. Anderson, Frederick E. Shelton, IV, David C. Yates, John W. Willis, Ashvani K. Madan, Donna L. Korvick
  • Publication number: 20180242910
    Abstract: A surgical apparatus comprises an instrument body, an end effector, and a control module. The end effector is in communication with the handle assembly. The end effector is operable for use in a surgical procedure. The control module is in communication with the end effector. The end effector with the control module is able to deliver surgical energy as well as nerve excitation energy to a surgical site. A surgeon may detect stimulation of nervous tissue by visually observing the tissue twitch, and may adjust surgical technique accordingly. A sensor may be used to detect excitation of nervous tissue based on excitation caused by the nerve excitation energy.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 30, 2018
    Inventors: Amy L. Marcotte, Timothy G. Dietz, Donna L. Korvick, Ashvani K. Madan, William D. Dannaher
  • Publication number: 20180125522
    Abstract: 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.
    Type: Application
    Filed: November 2, 2017
    Publication date: May 10, 2018
    Inventors: 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
  • Patent number: 9848900
    Abstract: 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.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: December 26, 2017
    Assignee: Ethicon LLC
    Inventors: David A. Witt, Timothy G. Dietz, Stephen J. Balek, Benjamin M. Boyd, David C. Groene, Benjamin V. Vins, William C. Horton, II, Ashvani K. Madan
  • Publication number: 20170360468
    Abstract: Apparatus and method to permit selective cutting and coagulation required in fine and delicate surgical procedures. The apparatus includes two body members having proximal ends and distal ends with jaw members located adjacent the body member's distal ends. The body members are joined at a pivot located adjacent to the first and second jaw members joining the first and second body members where the body members' rotation about the pivot defines a plane of rotation. The scissors are adapted for selective application of energy to at least one jaw member by a switch located in the plane of rotation.
    Type: Application
    Filed: August 30, 2017
    Publication date: December 21, 2017
    Inventors: Stephen E. Eichmann, Karen K. Isaacs, Kenneth S. Kramer, Michael R. Lamping, Ashvani K. Madan, Matthew C. Miller, Aaron C. Voegele, Eitan T. Wiener, Joseph E. Young
  • Publication number: 20170340339
    Abstract: A bone cutting surgical instrument includes features to mitigate heat generation during use. Excessive heat can be detrimental to bone health as well as to the instrument itself. In one example a liquid dispensing feature provides a flow of cooling liquid to an ultrasonic blade via a lumen in a waveguide of the instrument. In another example, the blade has a serrated edge with a plurality of teeth arranged in a pattern to provide dimension and space during cutting actions. In another example, the blade has an oversize distal portion that creates an oversize slot when cutting to avoid excessive contact between the cut bone and proximal portions of the blade. In another example the blade includes an irrigation slot and also a micro slot in a distal end of the blade that connects with the irrigation slot.
    Type: Application
    Filed: May 25, 2016
    Publication date: November 30, 2017
    Inventors: Ashvani K. Madan, David A. Witt, John A. Weed, III, Stephen J. Balek, Joseph Isosaki, Peter K. Shires, William D. Dannaher
  • Publication number: 20170340345
    Abstract: An apparatus includes a body assembly, an acoustic waveguide, an ultrasonic blade, a liquid dispensing feature, and a control module. The liquid dispensing feature is positioned distally relative to the body assembly. The liquid dispensing feature is positioned adjacent to the ultrasonic blade. The liquid dispensing feature is configured to deliver a flow of cooling liquid to the ultrasonic blade. The control module is operable to regulate fluid flow through the liquid dispensing feature.
    Type: Application
    Filed: May 25, 2016
    Publication date: November 30, 2017
    Inventors: David C. Yates, Benjamin M. Boyd, Benjamin D. Dickerson, Brian D. Black, Craig N. Faller, Kristen G. Denzinger, Paul F. Riestenberg, David M. Locke, Jacob S. Gee, Joseph Dennis, Ashvani K. Madan
  • Publication number: 20170333073
    Abstract: Systems, devices, and methods are operable to track usage of a surgical instrument and modify the performance of the surgical instrument based on the prior usage of the surgical instrument. Some surgical instruments are designed to have a limited service life beginning at their first use, or a limit to their overall usage in order to ensure safe use of the sensitive instruments. However, a lack of ability to track usage characteristics when the instrument is separated from an external power supply allows for user abuse and avoidance of such safety mechanisms. Adding a battery or capacitor to the instrument may allow for an ability to track usage when the instrument is separated from an external power supply. Implementing special user prompts, device use ratios, and device use half-life upon powering down of an instrument may additionally be used to prevent circumvention of safety features.
    Type: Application
    Filed: April 19, 2017
    Publication date: November 23, 2017
    Inventors: Craig N. Faller, Benjamin D. Dickerson, Jeffrey L. Aldridge, Jeffrey A. Bullock, Richard W. Timm, Ryan M. Asher, Timothy S. Holland, Craig T. Davis, Christina M. Hough, Cory G. Kimball, Ashvani K. Madan, David C. Yates, Shan Wan, Jacob S. Gee, Joseph E. Hollo, Chad P. Boudreaux, John B. Schulte, Tylor C. Muhlenkamp, Brian D. Black
  • Patent number: 9763674
    Abstract: A system includes an ultrasonic instrument and a bone insertion element. The instrument includes an ultrasonic transducer and an ultrasonic blade. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The ultrasonic blade is in acoustic communication with the ultrasonic transducer such that the ultrasonic transducer drives the ultrasonic blade to vibrate ultrasonically to form an opening within bone. The bone insertion element is configured to be inserted within the opening formed by the ultrasonic blade.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: September 19, 2017
    Assignee: Ethicon LLC
    Inventors: Joseph Peterson, Matthew L. Parsons, Cory G. Kimball, Foster B. Stulen, Ashvani K. Madan, Roman Lomeli
  • Publication number: 20170245913
    Abstract: A surgical instrument includes a first power source and a second power source. The first power source is configured to deliver power to a surgical instrument at a first rate of discharge. The second power source is configured to deliver power to the first power source at a second rate of discharge. The first power source and the second power source are positioned within the surgical instrument. The first power source and the second power source are further configured to communicate with a control module. The control module may rely on power from the first power source to drive an end effector of the surgical instrument. The end effector may comprise a harmonic/ultrasonic blade, RF electrosurgical electrodes, powered cutting/stapling features, and/or various other types of components.
    Type: Application
    Filed: March 16, 2017
    Publication date: August 31, 2017
    Inventors: Kevin L. Houser, David C. Yates, John W. Willis, Aron O. Zingman, Donna L. Korvick, Ashvani K. Madan