Patents by Inventor Chunwu Wu

Chunwu Wu 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: 20230056674
    Abstract: Surgical systems, navigation systems, and methods involving a robotic manipulator configured to control movement of an instrument to facilitate a surgical procedure. The navigation system includes a camera unit configured to optically track a pose of the instrument and a non-optical sensor coupled to the instrument. The navigation system includes a computing system coupled to the camera unit and being configured to obtain readings from the non-optical sensor. The computing system detects a condition whereby the camera unit is blocked from optically tracking the pose of the instrument. In response to detection of the condition, the computing system tracks the pose of the instrument with the readings from the non-optical sensor.
    Type: Application
    Filed: November 8, 2022
    Publication date: February 23, 2023
    Applicant: Stryker Corporation
    Inventor: Chunwu Wu
  • Patent number: 11529198
    Abstract: Systems and methods are disclosed that utilize a robotic device supporting and moving a cutting tool in at least three degrees of freedom. A control system commands the robotic device to control or constrain movement of the cutting tool. A first tracker is coupled to the robotic device and a second tracker is coupled to an anatomy. The second tracker includes three markers that generate optical signals and a non-optical sensor that generates non-optical signals. A navigation system with an optical sensor is in communication with the control system. The navigation system receives, with the optical sensor, the optical signals from one or more of the three markers and receives the non-optical signals from the non-optical sensor. The navigation system communicates position data indicative of a position of the anatomy to the control system to control cutting of the anatomy based on the received optical and non-optical signals.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: December 20, 2022
    Assignee: Stryker Corporation
    Inventor: Chunwu Wu
  • Publication number: 20220125401
    Abstract: A system is disclosed for determining a position and a change in the position of an anatomical structure. The system utilizes a surgical navigation system and a substrate that is capable of being removably mounted to an outer surface of a body. A sensor is attached to the substrate to be tracked by the surgical navigation system. An ultrasonic imaging device is attached to the substrate to determine a position of the anatomical structure. A first circuit calculates a global position of the anatomical structure by correlating a position of the sensor and the position of the anatomical structure. The first circuit determines the global position without the use of an image of the anatomical structure, and may do so without the use of a reference device invasively affixed to the body. A second circuit displays the global position of the anatomical structure.
    Type: Application
    Filed: January 10, 2022
    Publication date: April 28, 2022
    Applicant: Stryker European Operations Holdings LLC
    Inventors: José Luis Moctezuma de la Barrera, Chunwu Wu
  • Patent number: 11253224
    Abstract: A system is disclosed for determining a position and a change in the position of an anatomical structure. The system utilizes a surgical navigation system and a substrate that is capable of being removably mounted to an outer surface of a patient's body. The substrate includes a sensor that is tracked by the surgical navigation system and a positional device that determines the position of an anatomical structure relative to the sensor. The concatenation of the position of the sensor and the relative position of the anatomical structure allows a global position of the anatomical structure to be determined by a computer system and displayed to the user.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: February 22, 2022
    Assignee: Stryker European Operations Holdings LLC
    Inventors: Jose Luis Moctezuma de la Barrera, Chunwu Wu
  • Publication number: 20200197105
    Abstract: Systems and methods are disclosed that utilize a robotic device supporting and moving a cutting tool in at least three degrees of freedom. A control system commands the robotic device to control or constrain movement of the cutting tool. A first tracker is coupled to the robotic device and a second tracker is coupled to an anatomy. The second tracker includes three markers that generate optical signals and a non-optical sensor that generates non-optical signals. A navigation system with an optical sensor is in communication with the control system. The navigation system receives, with the optical sensor, the optical signals from one or more of the three markers and receives the non-optical signals from the non-optical sensor. The navigation system communicates position data indicative of a position of the anatomy to the control system to control cutting of the anatomy based on the received optical and non-optical signals.
    Type: Application
    Filed: February 6, 2020
    Publication date: June 25, 2020
    Applicant: Stryker Corporation
    Inventor: Chunwu Wu
  • Publication number: 20200129245
    Abstract: Disclosed is a navigation system configured to track an object. The navigation system comprises a tracker configured to couple to the object and a localization device configured to track the tracker. The tracker and the localization device are configured to wirelessly communicate using a first communication method operable on a first spectrum and to wirelessly communicate using a second communication method operable on a second spectrum different from the first spectrum. The localization device utilizes the first communication method to track the tracker and utilizes the first communication method to manage an operating parameter of the tracker with respect to the second communication method.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Applicant: Stryker Corporation
    Inventors: Donald W. Malackowski, Paul Hoekstra, Matt Shinew, Chunwu Wu
  • Patent number: 10575906
    Abstract: Systems and methods that utilize optical sensors and non-optical sensors to determine the position and/or orientation of objects. A navigation system includes an optical sensor for receiving optical signals from markers and a non-optical sensor, such as a gyroscope, for generating non-optical data. A navigation computer determines positions and/or orientations of objects based on optical and non-optical data.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: March 3, 2020
    Assignee: Stryker Corporation
    Inventor: Chunwu Wu
  • Patent number: 10555781
    Abstract: High bandwidth, low latency hybrid communication techniques are disclosed for a navigation system. The navigation system comprises a tracker configured to couple to the object and a localization device configured to track the tracker. In one embodiment, the localization device is configured to utilize communication on a first spectrum to track the tracker and to manage an operating parameter of the tracker with respect to communication on a second spectrum. In another embodiment, the localization device is configured to utilize communication with a first modulation method to track the tracker and to manage an operating parameter of the tracker and to utilize communication with a second modulation method for receiving sensor data from the tracker.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 11, 2020
    Assignee: Stryker Corporation
    Inventors: Donald W. Malackowski, Paul Hoekstra, Matt Shinew, Chunwu Wu
  • Publication number: 20190142525
    Abstract: High bandwidth, low latency hybrid communication techniques are disclosed for a navigation system. The navigation system comprises a tracker configured to couple to the object and a localization device configured to track the tracker. In one embodiment, the localization device is configured to utilize communication on a first spectrum to track the tracker and to manage an operating parameter of the tracker with respect to communication on a second spectrum. In another embodiment, the localization device is configured to utilize communication with a first modulation method to track the tracker and to manage an operating parameter of the tracker and to utilize communication with a second modulation method for receiving sensor data from the tracker.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 16, 2019
    Applicant: Stryker Corporation
    Inventors: Donald W. Malackowski, Paul Hoekstra, Matt Shinew, Chunwu Wu
  • Publication number: 20170252111
    Abstract: Systems and methods that utilize optical sensors and non-optical sensors to determine the position and/or orientation of objects. A navigation system includes an optical sensor for receiving optical signals from markers and a non-optical sensor, such as a gyroscope, for generating non-optical data. A navigation computer determines positions and/or orientations of objects based on optical and non-optical data.
    Type: Application
    Filed: May 19, 2017
    Publication date: September 7, 2017
    Applicant: Stryker Corporation
    Inventor: Chunwu Wu
  • Patent number: 9687307
    Abstract: Systems and methods that utilize optical sensors and non-optical sensors to determine the position and/or orientation of objects. A navigation system includes an optical sensor for receiving optical signals from markers and a non-optical sensor, such as a gyroscope, for generating non-optical data. A navigation computer determines positions and/or orientations of objects based on optical and non-optical data.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: June 27, 2017
    Assignee: STRYKER CORPORATION
    Inventor: Chunwu Wu
  • Publication number: 20160120610
    Abstract: Systems and methods that utilize optical sensors and non-optical sensors to determine the position and/or orientation of objects. A navigation system includes an optical sensor for receiving optical signals from markers and a non-optical sensor, such as a gyroscope, for generating non-optical data. A navigation computer determines positions and/or orientations of objects based on optical and non-optical data.
    Type: Application
    Filed: January 13, 2016
    Publication date: May 5, 2016
    Inventor: Chunwu Wu
  • Patent number: 9271804
    Abstract: Systems and methods that utilize optical sensors and non-optical sensors to determine the position and/or orientation of objects. A navigation system includes an optical sensor for receiving optical signals from markers and a non-optical sensor, such as a gyroscope, for generating non-optical data. A navigation computer determines positions and/or orientations of objects based on optical and non-optical data.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: March 1, 2016
    Assignee: STRYKER CORPORATION
    Inventor: Chunwu Wu
  • Publication number: 20160029997
    Abstract: A system is disclosed for determining a position and a change in the position of an anatomical structure. The system utilizes a surgical navigation system and a substrate that is capable of being removably mounted to an outer surface of a patient's body. The substrate includes a sensor that is tracked by the surgical navigation system and a positional device that determines the position of an anatomical structure relative to the sensor. The concatenation of the position of the sensor and the relative position of the anatomical structure allows a global position of the anatomical structure to be determined by a computer system and displayed to the user.
    Type: Application
    Filed: October 14, 2015
    Publication date: February 4, 2016
    Applicant: Stryker Leibinger GmbH & Co. KG
    Inventors: Jose Luis Moctezuma de la Barrera, Chunwu Wu
  • Patent number: 9211164
    Abstract: A system is disclosed for determining a position and a change in the position of an anatomical structure. The system utilizes a surgical navigation system and a substrate that is capable of being removably mounted to an outer surface of a patient's body. The substrate includes a sensor that is tracked by the surgical navigation system and a positional device that determines the position of an anatomical structure relative to the sensor. The concatenation of the position of the sensor and the relative position of the anatomical structure allows a global position of the anatomical structure to be determined by a computer system and displayed to the user.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: December 15, 2015
    Assignee: STRYKER LEIBINGER GMBH & CO. KG
    Inventors: Jose Luis Moctezuma de la Barrera, Chunwu Wu
  • Publication number: 20150164609
    Abstract: Systems and methods that utilize optical sensors and non-optical sensors to determine the position and/or orientation of objects. A navigation system includes an optical sensor for receiving optical signals from markers and a non-optical sensor, such as a gyroscope, for generating non-optical data. A navigation computer determines positions and/or orientations of objects based on optical and non-optical data.
    Type: Application
    Filed: March 2, 2015
    Publication date: June 18, 2015
    Applicant: Stryker Corporation
    Inventor: Chunwu Wu
  • Patent number: 9008757
    Abstract: Systems and methods that utilize optical sensors and non-optical sensors to determine the position and/or orientation of objects. A navigation system includes an optical sensor for receiving optical signals from markers and a non-optical sensor, such as a gyroscope, for generating non-optical data. A navigation computer determines positions and/or orientations of objects based on optical and non-optical data.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 14, 2015
    Assignee: Stryker Corporation
    Inventor: Chunwu Wu
  • Patent number: 8905413
    Abstract: A system for collecting and compressing waste collected in a medical or surgical procedure. The system includes a bag for collecting the waste that is seated on a mobile cart. Once the waste is collected the bag is closed and, while on the cart, transported to a compactor. While on the cart, the bag is compacted. Air in the bag is discharged through a one-way valve fitted to the bag. The one way valve may be attached to a cartridge that is inserted into the bag opening. The air discharged from the bag is filtered prior to discharge into the ambient environment. The filter may be built into the one-way valve.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: December 9, 2014
    Assignee: Stryker Corporation
    Inventors: Bruce Henniges, Douglas L. Tyler, James G. Walen, Chunwu Wu
  • Publication number: 20140088410
    Abstract: Systems and methods that utilize optical sensors and non-optical sensors to determine the position and/or orientation of objects. A navigation system includes an optical sensor for receiving optical signals from markers and a non-optical sensor, such as a gyroscope, for generating non-optical data. A navigation computer determines positions and/or orientations of objects based on optical and non-optical data.
    Type: Application
    Filed: September 24, 2013
    Publication date: March 27, 2014
    Inventor: Chunwu Wu
  • Publication number: 20130333328
    Abstract: A system for collecting and compressing waste collected in a medical or surgical procedure. The system includes a bag for collecting the waste that is seated on a mobile cart. Once the waste is collected the bag is closed and, while on the cart, transported to a compactor. While on the cart, the bag is compacted. Air in the bag is discharged through a one-way valve fitted to the bag. The one way valve may be attached to a cartridge that is inserted into the bag opening. The air discharged from the bag is filtered prior to discharge into the ambient environment. The filter may be built into the one-way valve.
    Type: Application
    Filed: July 31, 2013
    Publication date: December 19, 2013
    Applicant: Stryker Corporation
    Inventors: Bruce Henniges, Douglas L. Tyler, James G. Walen, Chunwu Wu