Patents by Inventor Shan Wan

Shan Wan 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).

  • Patent number: 11864786
    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: Grant
    Filed: February 26, 2020
    Date of Patent: January 9, 2024
    Assignee: Cilag GmbH International
    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
  • Publication number: 20230372743
    Abstract: In one general aspect, various embodiments are directed to a surgical instrument that can supply mechanical energy and electrical energy to an end effector of the surgical instrument. The surgical instrument may be operated in a first operating mode in which a transducer of the surgical instrument produces mechanical energy, or vibrations, that are transmitted to the end effector and a second operating mode in which electrical energy, or current, can flow through the end effector to perform electrosurgery. In another general aspect, the surgical instrument may comprise a clamp, or jaw, which can be moved into a closed position to hold tissue against a waveguide, or blade, of the end effector. In the second operating mode of the surgical instrument, current can flow from a power source, through the waveguide, and return to the power source through a path comprising the jaw.
    Type: Application
    Filed: May 24, 2023
    Publication date: November 23, 2023
    Inventors: Eitan T. Wiener, Shan Wan, Daniel W. Price, David K. Norvell, James R. Giordano
  • Patent number: 11786238
    Abstract: The present invention discloses a surgical stapler instrument. The surgical stapler instrument comprises a handle assembly having a proximal end and a distal end. A bottom jaw is detachably coupled to the distal end of the handle assembly. The bottom jaw having a staple cartridge surface, configured to eject one or more staples. Further, a top jaw is detachably coupled to the bottom jaw toward the distal end of the handle assembly. The top jaw comprises a staple pocket disposed over an anvil surface of the top jaw and configured to bend the ejected one or more staples and deliver into targeted tissues. An effective friction coefficient (?e) of the staple pocket of the top jaw is lower than the staple cartridge surface of the bottom jaw to achieve optimized stapling.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: October 17, 2023
    Assignee: GENESIS MEDTECH (USA) INC.
    Inventor: Shan Wan
  • Patent number: 11737750
    Abstract: A surgical instrument includes a body, a shaft assembly, and an end effector. The shaft assembly extends distally from the body. The end effector is located at a distal end portion of the shaft assembly. The end effector includes an active feature configured to operate on tissue. The body includes a drive feature operable to drive the active feature of the end effector. The body is removably coupled with the shaft assembly in a connected state and separated from the shaft assembly in a disconnected state. The body includes a drive feature configured to drive operation of the active feature of the effector. The drive feature includes at least one of an ultrasonic drive feature or a mechanical drive feature. A proximal end portion of the shaft assembly is configured to be removed from the body to separate the at least one activation feature from the drive feature.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: August 29, 2023
    Assignee: Cilag GmbH International
    Inventors: Jeffrey L. Aldridge, Eitan T. Wiener, Robert A. Kemerling, James R. Giordano, Vincent P. Battaglia, Jr., Daniel W. Price, Sean P. Conlon, Gregory W. Johnson, Jeffrey D. Messerly, Shan Wan, Kevin L. Houser, Foster B. Stulen, Jacob S. Gee, Jeffrey A. Bullock, John A. Hibner, William B. Weisenburgh, II
  • Patent number: 11717706
    Abstract: In one general aspect, various embodiments are directed to a surgical instrument that can supply mechanical energy and electrical energy to an end effector of the surgical instrument. The surgical instrument may be operated in a first operating mode in which a transducer of the surgical instrument produces mechanical energy, or vibrations, that are transmitted to the end effector and a second operating mode in which electrical energy, or current, can flow through the end effector to perform electrosurgery. In another general aspect, the surgical instrument may comprise a clamp, or jaw, which can be moved into a closed position to hold tissue against a waveguide, or blade, of the end effector. In the second operating mode of the surgical instrument, current can flow from a power source, through the waveguide, and return to the power source through a path comprising the jaw.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: August 8, 2023
    Assignee: Cilag GmbH International
    Inventors: Eitan T. Wiener, Shan Wan, Daniel W. Price, David K. Norvell, James R. Giordano
  • Publication number: 20230200810
    Abstract: The present invention discloses a surgical stapler instrument. The surgical stapler instrument comprises a handle assembly having a proximal end and a distal end. A bottom jaw is detachably coupled to the distal end of the handle assembly. The bottom jaw having a staple cartridge surface, configured to eject one or more staples. Further, a top jaw is detachably coupled to the bottom jaw toward the distal end of the handle assembly. The top jaw comprises a staple pocket disposed over an anvil surface of the top jaw and configured to bend the ejected one or more staples and deliver into targeted tissues. An effective friction coefficient (?e) of the staple pocket of the top jaw is lower than the staple cartridge surface of the bottom jaw to achieve optimized stapling.
    Type: Application
    Filed: December 21, 2022
    Publication date: June 29, 2023
    Inventor: Shan Wan
  • Publication number: 20230181263
    Abstract: A robotic system is integrated with the laparoscope effectively creating a 3D scanner which can be used during laparoscopic surgery. This enables advanced surgical navigation and visualization to aid with the surgical process. It also acts as a core data set to be used by the Digital Health Platform. This acts as the starting point for Virtual Reality reconstruction of the surgical procedure for both real time surgical guidance and advanced AI/ML development. Furthermore, diagnostic capabilities could also be integrated into the system to enable real time diagnostic data to be generated for use during the procedure. Coupling the diagnostic capabilities with the vision system of the laparoscope and the ground truth reference coordinate system of the robot enables quick Augmented Reality visualization through the Digital Health Platform.
    Type: Application
    Filed: December 12, 2022
    Publication date: June 15, 2023
    Inventors: Brendan Reimer, Bin Zhao, Shan Wan
  • Publication number: 20230172684
    Abstract: This disclosure describes a video-based surgery analytics and quality/skills assessment system. The system takes surgery video as input and generates rich analytics on the surgery. Multiple features may be extracted from the video that describe operation quality and surgeon skills, such as time spent on each step of the surgery, medical device movement trajectory characteristics, and adverse events occurrence such as excessive bleeding. Description of the surgery, related to its difficulty such as patient characteristics, may be also utilized to reflect surgery difficulty. Considering the various extracted features and the surgery description provided by surgeon, a machine learning based model may be trained to assess surgery quality and surgeon skills, by weighing and combining those factors. The system may solve 2 challenges in objective and reliable assessment: differing level of surgery difficulty caused by patient uniqueness and balancing multiple factors that affect quality and skills assessment.
    Type: Application
    Filed: December 5, 2022
    Publication date: June 8, 2023
    Inventors: Bin Zhao, Ning Li, Shan Wan
  • Publication number: 20230144829
    Abstract: The present invention discloses a surgical integrated assistance system comprising an integrated surgical device having a housing with one or more ports integrated at one side of the housing. The one or more ports are configured for coupling the integrated surgical device with one or more energy instruments. Further, a display control unit is coupled to a display unit and configured to control operating mechanism of each of the one or more energy instruments. Thereafter, an artificial intelligence and machine learning (AI/ML) enabled module integrated within the housing, to automatically optimize multiple parameters of the one or more energy instruments.
    Type: Application
    Filed: November 10, 2022
    Publication date: May 11, 2023
    Inventors: Shan Wan, Ning Li, Yangyang Chang, Bin Zhao
  • Publication number: 20230141081
    Abstract: A console is disclosed. The console includes: an image receiving module configured to receive image data from a first device connected to the console; an image processing module in communication with the image receiving module, the image processing module configured to process the received image data to determine tissue characteristic data; a mode determination module in communication with the image processing module, the mode determination module configured to determine, based on the tissue characteristic data, an operation mode of a second device connected to the console; and a control module in communication with the mode determination module, the control module configured to control an operation of the second device based on the determined operation mode.
    Type: Application
    Filed: November 8, 2022
    Publication date: May 11, 2023
    Inventors: Bin Zhao, Ning Li, Shan Wan
  • Publication number: 20230147826
    Abstract: This disclosure describes an interactive augmented reality system for improving surgeon's view and context awareness during laparoscopic and video assisted surgeries. Instead of purely relying on computer vision algorithms for image registration between pre-operation (or intra-operation) images/models and later intra-operation scope images, the system can implement an interactive mechanism where surgeons may provide supervised information in initial calibration phase of the augmented reality function, thus achieving high accuracy in image registration. Besides the initialization phase before operation starts, interaction between surgeon and the system can also happens during the surgery. Specifically, patient tissue might move or deform during surgery, caused by for example cutting. The augmented reality system can re-calibrate during surgery when image registration accuracy deteriorates, by seeking additional supervised labeling from surgeons.
    Type: Application
    Filed: November 8, 2022
    Publication date: May 11, 2023
    Inventors: Bin Zhao, Ning Li, Shan Wan
  • Publication number: 20230027481
    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.
    Type: Application
    Filed: October 5, 2022
    Publication date: January 26, 2023
    Inventors: Mark A. Davison, Craig T. Davis, Jeffrey W. Bullock, Mark E. Tebbe, Shan Wan, Jeffrey L. Aldridge, Ryan M. Asher, Kristen G. Denzinger, Monica L. Z. Rivard, Kevin A. Bash, Eric M. Roberson
  • Publication number: 20220395317
    Abstract: An apparatus includes a shaft assembly and an end effector. The shaft assembly includes an outer sheath, at least one irrigation conduit, and at least one suction conduit. The end effector includes a first electrode, a second electrode, and a web. The electrodes extend distally relative to a distal end of the outer sheath. The electrodes are operable to apply bipolar RF energy to tissue. The web extends laterally between the first and second electrodes. The web is positioned distal to the distal end of the outer sheath.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 15, 2022
    Inventors: Mark A. Davison, Mark E. Tebbe, Kristen G. Denzinger, Ryan M. Asher, Craig T. Davis, Kevin Bash, Eric Roberson, John E. Brady, Jeffrey A. Bullock, Jeffrey L. Aldridge, Monica L. Zeckel, Shan Wan, Kristen L. D'Uva
  • Publication number: 20220395292
    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.
    Type: Application
    Filed: July 8, 2022
    Publication date: December 15, 2022
    Inventors: Ryan M. Asher, Brian D. Black, Chad P. Boudreaux, Nathan Cummings, William D. Dannaher, Craig T. Davis, Glenn W. Ellison, Frederick L. Estera, Jacob S. Gee, Geni M. Giannotti, Timothy S. Holland, Kevin L. Houser, Gregory W. Johnson, Amy M. Krumm, Jason R. Lesko, Stephen M. Leuck, Ion V. Nicolaescu, Candice Otrembiak, Amelia A. Pierce, Eric Roberson, Shan Wan
  • Patent number: 11490951
    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.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: November 8, 2022
    Assignee: Cilag GmbH International
    Inventors: Mark A. Davison, Craig T. Davis, Jeffrey W. Bullock, Mark E. Tebbe, Shan Wan, Jeffrey L. Aldridge, Ryan M. Asher, Kristen G. Denzinger, Monica L. Rivard, Kevin A. Bash, Eric M. Roberson
  • Patent number: 11464533
    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.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: October 11, 2022
    Assignee: Cilag GmbH International
    Inventors: Ryan M. Asher, Brian D. Black, Chad P. Boudreaux, Nathan Cummings, William D. Dannaher, Craig T. Davis, Glenn W. Ellison, Frederick L. Estera, Jacob S. Gee, Geni Giannotti, Timothy S. Holland, Kevin L. Houser, Gregory W. Johnson, Amy M. Krumm, Jason R. Lesko, Stephen M. Leuck, Ion V. Nicolaescu, Candice Otrembiak, Amelia A. Pierce, Eric Roberson, Shan Wan
  • Patent number: 11413087
    Abstract: An apparatus includes a shaft assembly and an end effector. The shaft assembly includes an outer sheath, at least one irrigation conduit, and at least one suction conduit. The end effector includes a first electrode, a second electrode, and a web. The electrodes extend distally relative to a distal end of the outer sheath. The electrodes are operable to apply bipolar RF energy to tissue. The web extends laterally between the first and second electrodes. The web is positioned distal to the distal end of the outer sheath.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 16, 2022
    Assignee: Cilag GmbH International
    Inventors: Mark A. Davison, Mark E. Tebbe, Kristen G. Denzinger, Ryan M. Asher, Craig T. Davis, Kevin Bash, Eric Roberson, John E. Brady, Jeffrey A. Bullock, Jeffrey L. Aldridge, Monica L. Zeckel, Shan Wan, Kristen L. D'Uva
  • Patent number: 11409932
    Abstract: Systems and methods are provided herein for estimating an output current of an input/output (I/O) driver given a set of voltages present at pins of the I/O driver. A set of voltages are received comprising voltages present at a power pin, a ground pin, at least three input pins, and at least three output pins of an I/O driver. Neural network models are applied to one or more voltages of the set of voltages to determine currents associated the I/O driver. A state space model is applied to one or more voltages of the set of voltages to determine another current of the I/O driver. An output current of the I/O driver is estimated based on the currents and the one or more values.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: August 9, 2022
    Assignee: Ansys, Inc.
    Inventor: Shan Wan
  • Publication number: 20220039858
    Abstract: An apparatus includes a body, a shaft assembly, and an end effector. The end effector includes an ultrasonic blade and a clamp arm assembly. The ultrasonic blade is in acoustic communication with an acoustic waveguide of the shaft assembly. The clamp arm assembly is pivotable toward and away from the ultrasonic blade. The clamp arm assembly includes a clamp pad and an electrode. The clamp pad is configured to compress tissue against the ultrasonic blade. The clamp pad has a proximal end, a distal end, and a pair of lateral sides extending from the proximal end to the distal end. The electrode is operable to apply RF energy to tissue. The electrode extends along both lateral sides of the clamp pad. The electrode further extends around the distal end of the clamp pad.
    Type: Application
    Filed: August 24, 2021
    Publication date: February 10, 2022
    Inventors: Gregory W. Johnson, Jason R. Lesko, Frederick L. Estera, Amy M. Krumm, Catherine A. Corbett, William B. Weisenburgh, II, Barry C. Worrell, Mark A. Davison, Chad P. Boudreaux, John A. Hibner, Joseph Isosaki, Shan Wan, Candice Otrembiak, Eitan T. Wiener, Jeffrey D. Messerly, Matthew C. Miller
  • Publication number: 20220039861
    Abstract: An end effector of an instrument is positioned in a patient. An ultrasonic blade of the end effector is positioned against tissue in the patient. The ultrasonic blade is activated to vibrate ultrasonically while the ultrasonic blade is positioned against tissue. At least one electrode of the end effector is positioned against tissue in the patient. The at least one electrode is activated to apply RF electrosurgical energy to tissue against which the at least one electrode is positioned against tissue.
    Type: Application
    Filed: August 24, 2021
    Publication date: February 10, 2022
    Inventors: Gregory W. Johnson, Jason R. Lesko, Frederick L. Estera, Amy M. Krumm, Catherine A. Corbett, William B. Weisenburgh, II, Barry C. Worrell, Mark A. Davison, Chad P. Boudreaux, John A. Hibner, Nathan Cummings, Ellen Burkart, William D. Dannaher, Christina M. Hough, Joseph Isosaki, Craig N. Faller, Shan Wan, Adam N. Brown, Candice Otrembiak, Eitan T. Wiener, Jeffrey D. Messerly, Kai Chen, Matthew C. Miller, William E. Clem