Patents by Inventor Tianning Xu

Tianning Xu 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: 8663200
    Abstract: A negative pressure wound therapy apparatus can include a wound dressing, a fluid collection container, a vacuum pump comprising a pump motor, and tubing. Additionally, the apparatus can include a pressure sensor that measures a pressure in the tubing. One or more tubes can channel a fluid between the wound dressing, the fluid collection canister, and the pump. In addition, first and second control circuits can be provided for controlling the pump motor without using a processor. The first control circuit can generate a difference signal between a desired pressure input and a pressure sensor input, and can further generate a motor control signal responsive to the difference signal. Moreover, a second control circuit can provide an override signal based at least in part on the difference signal and at least one reference signal. The override signal beneficially overrides the motor control signal to prevent the pump motor from stalling.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 4, 2014
    Assignee: Bluesky Medical Group Inc.
    Inventors: Richard Scott Weston, Tianning Xu
  • Patent number: 8663199
    Abstract: A wound exudate removal and isolation system includes a porous dressing, a canister in fluid communication with the dressing, and a first valve positioned between the dressing and the canister. The first valve is positionable between an open position and a closed position. A disposal line is fluidly connected to the canister and includes a second valve that is positionable between an open position and a closed position. A pump is fluidly connected to the canister and is configured to draw wound exudate from the dressing into the canister when the first valve is open and the second valve is closed. The pump is configured to force wound exudate from the canister into the disposal line when the first valve is closed and the second valve is open.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: March 4, 2014
    Assignee: KCI Licensing, Inc.
    Inventors: Jonathan Jaeb, Tab Randolph, Randall Kelch, Xiaolu Zheng, Devin Ginther, Tianning Xu, Jennifer Novak, Teryl Blane Sanders
  • Patent number: 8588893
    Abstract: A system and method for analyzing tissue healing may include capturing an image including a tissue site. A clinician may be enabled to define multiple regions of the image of the tissue site, where at least two of the regions of the image define tissue types at different stages of tissue healing. An area may be calculated of each of the at least two regions of the image defining tissue type at different stages of tissue healing. The calculated areas may be displayed to a clinician. In one embodiment, an image color adjustment may be determined by adjusting the image of the reference color marker to the predetermined color. The image of the tissue site may be normalized by applying the image color adjustment to generate a normalized image.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: November 19, 2013
    Assignee: KCI Licensing, Inc.
    Inventors: Jonathan Paul Jaeb, Tianning Xu, Christopher Brian Locke, Mark Stephen James Beard
  • Patent number: 8444613
    Abstract: A therapeutic device includes a fluid mover for one of raising, compressing, or transferring fluid, a therapeutic member operably connected to the fluid mover and actuated thereby, the therapeutic member operably disposably used on a patient in a manner to deliver therapy to the patient as function of actuation of the fluid mover, a controller operably associated with the fluid mover for controlling operation thereof, and a leak, blockage, temperature, voltage or current sensor operably connected to the fluid mover and the controller and to sense a leak, blockage, temperature, voltage or current in the device and send a signal to the controller whereby the controller controls the fluid mover as a function of the sensed signal.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: May 21, 2013
    Inventors: Pal Svedman, Tianning Xu
  • Publication number: 20130053800
    Abstract: A wound exudate removal and isolation system includes a porous dressing, a canister in fluid communication with the dressing, and a first valve positioned between the dressing and the canister. The first valve is positionable between an open position and a closed position. A disposal line is fluidly connected to the canister and includes a second valve that is positionable between an open position and a closed position. A pump is fluidly connected to the canister and is configured to draw wound exudate from the dressing into the canister when the first valve is open and the second valve is closed. The pump is configured to force wound exudate from the canister into the disposal line when the first valve is closed and the second valve is open.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 28, 2013
    Inventors: Jonathan Jaeb, Tab Randolph, Randall Kelch, Xiaolu Zheng, Devin Ginther, Tianning Xu, Jennifer N. Novak, T. Blane Sanders
  • Patent number: 8351299
    Abstract: Systems and methods for monitoring motion parameters of an object are described in the present disclosure. In one embodiment among many, a sensor, coupled to a housing, senses motion associated with the housing and provides a sensor output based on the sensed motion. A processing device receives the sensor output, accumulates counts associated with the sensor output, and provides an output once a threshold associated with the accumulated counts is reached. A vibrotactile device, that receives the output from the processing device, provides a haptic output in response to the output from the processing device. In one embodiment among many, a toothbrush is described as a monitoring mechanism for monitoring a plurality of brush strokes that a user executes with the toothbrush. The monitoring mechanism is incorporated in the handle of the toothbrush. The monitoring mechanism may be used to provide an alert once a sufficient number of brush strokes is achieved.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: January 8, 2013
    Assignee: Immersion Corporation
    Inventors: Robert F. Cohen, Walter E. Ratzat, Tianning Xu
  • Patent number: 8308714
    Abstract: A negative pressure wound therapy apparatus can include a wound dressing, a fluid collection container, a vacuum pump comprising a pump motor, and tubing. Additionally, the apparatus can include a pressure sensor that measures a pressure in the tubing. One or more tubes can channel a fluid between the wound dressing, the fluid collection canister, and the pump. In addition, first and second control circuits can be provided for controlling the pump motor without using a processor. The first control circuit can generate a difference signal between a desired pressure input and a pressure sensor input, and can further generate a motor control signal responsive to the difference signal. Moreover, a second control circuit can provide an override signal based at least in part on the difference signal and at least one reference signal. The override signal beneficially overrides the motor control signal to prevent the pump motor from stalling.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: November 13, 2012
    Assignee: Bluesky Medical Group Inc.
    Inventors: Richard Scott Weston, Tianning Xu
  • Patent number: 8273074
    Abstract: A wound exudate removal and isolation system includes a porous dressing, a canister in fluid communication with the dressing, and a first valve positioned between the dressing and the canister. The first valve is positionable between an open position and a closed position. A disposal line is fluidly connected to the canister and includes a second valve that is positionable between an open position and a closed position. A pump is fluidly connected to the canister and is configured to draw wound exudate from the dressing into the canister when the first valve is open and the second valve is closed. The pump is configured to force wound exudate from the canister into the disposal line when the first valve is closed and the second valve is open.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: September 25, 2012
    Assignee: KCI Licensing, Inc.
    Inventors: Jonathan Jaeb, Tab Randolph, Randall Kelch, Xiaolu Zheng, Devin Ginther, Tianning Xu, Jennifer N. Novak, T. Blane Sanders
  • Patent number: 8000777
    Abstract: A system and method for analyzing tissue healing may include an image capture device and a reference color marker of a predetermined color. A processing unit may be in communication with the image capture device, and be configured to receive image data from the image capture device. The image data may include image of a tissue site and the reference color marker. At least one image parameter may be adjusted based on at least a portion of the image of the reference color marker to normalize the image data. The normalized image data may be presented to a clinician.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: August 16, 2011
    Assignee: KCI Licensing, Inc.
    Inventors: Jonathan Paul Jaeb, Tianning Xu, Christopher Brian Locke, Mark Stephen James Beard
  • Publication number: 20110130642
    Abstract: A system and method for analyzing tissue healing may include capturing an image including a tissue site. A clinician may be enabled to define multiple regions of the image of the tissue site, where at least two of the regions of the image define tissue types at different stages of tissue healing. An area may be calculated of each of the at least two regions of the image defining tissue type at different stages of tissue healing. The calculated areas may be displayed to a clinician. In one embodiment, an image color adjustment may be determined by adjusting the image of the reference color marker to the predetermined color. The image of the tissue site may be normalized by applying the image color adjustment to generate a normalized image.
    Type: Application
    Filed: January 4, 2011
    Publication date: June 2, 2011
    Inventors: Jonathan Paul Jaeb, Tianning Xu, Christopher Brian Locke, Mark Stephen James Beard
  • Publication number: 20110112494
    Abstract: A therapeutic device for providing intermittent negative pressure wound healing includes a fluid mover, a compressible therapeutic member operably connected to the fluid mover and actuated thereby, the compressible therapeutic member operably disposably used on a patient in a manner to deliver therapy to the patient as function of actuation of the fluid mover and a controller for controlling application of a negative pressure to the compressible therapeutic member about a wound in a manner to compress the compressible therapeutic member using negative pressure to subject the wound and the compressible therapeutic member to a first predetermined pressure to maintain a seal between the compressible therapeutic member and the wound and decompressing the compressible therapeutic member to a second sub-atmospheric pressure above the first predetermined pressure sufficient to maintain the compressible therapeutic member in generally sealed contact with the wound.
    Type: Application
    Filed: January 14, 2011
    Publication date: May 12, 2011
    Inventors: Pal Svedman, David M. Tumey, Tianning Xu
  • Publication number: 20110015589
    Abstract: A disposable therapeutic device for the promotion of wound healing, providing fluid irrigation and vacuum drainage of a wound includes a housing containing a controller and fluid moving device in a waterproof manner, the fluid moving means capable of raising, compressing, or transferring fluid, the controller equipped to restrict fluid moving device in accordance with a predetermined treatment plan or duration, a chargeable power source removably connected to the housing, an optional therapeutic member of a compressible dressing or inflatable cuff to provide hemostasis, an identification member for regulating the operation of the device in accordance with a predetermined treatment plan, a disposable container, a pressure sensor and a control display panel.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 20, 2011
    Inventors: Pal Svedman, David M. Tumey, Tianning Xu, Richard C. Vogel, Mark S. Meents
  • Publication number: 20110015593
    Abstract: A therapeutic device includes a fluid mover for one of raising, compressing, or transferring fluid, a therapeutic member operably connected to the fluid mover and actuated thereby, the therapeutic member operably disposably used on a patient in a manner to deliver therapy to the patient as function of actuation of the fluid mover, a controller operably associated with the fluid mover for controlling operation thereof, and a leak, blockage, temperature, voltage or current sensor operably connected to the fluid mover and the controller and to sense a leak, blockage, temperature, voltage or current in the device and send a signal to the controller whereby the controller controls the fluid mover as a function of the sensed signal.
    Type: Application
    Filed: December 2, 2009
    Publication date: January 20, 2011
    Inventors: Pal Svedman, Tianning Xu
  • Publication number: 20110015590
    Abstract: A therapeutic device of the type which includes a fluid moving device for one of raising, compressing, or transferring fluid, a therapeutic member operably connected to the fluid moving device and actuated thereby, the therapeutic member operably disposable for use on a patient in a manner to deliver therapy to the patient as function of actuation of the fluid moving device, wherein the improvement includes a rechargeable power source operably connected to the fluid flowing device which includes a portable renewable energy producing device for powering the fluid moving device.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 20, 2011
    Inventors: Pal Svedman, David M. Tumey, Tianning Xu
  • Publication number: 20110015585
    Abstract: A method and device for providing intermittent negative pressure wound healing which includes equipped to (a) apply a negative pressure compressible therapeutic dressing about a wound; (b) compress the therapeutic dressing using negative pressure to subject the wound and the therapeutic dressing to a first predetermined pressure which is low enough to provide therapy to the wound and high enough to maintain a seal between the dressing and the wound; and (c) decompress the therapeutic dressing to a second sub-atmospheric pressure above the first predetermined pressure sufficient to maintain the dressing in a generally sealed contact with the wound while relaxing compression about the wound.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 20, 2011
    Inventors: Pal Svedman, David M. Tumey, Tianning Xu
  • Publication number: 20100106114
    Abstract: A dressing (30), a grommet (10) and a combination thereof are described for making a dressing for use in locating and retaining conduits and/or tubes used in therapy of a wound is described, the dressing (30) comprising a backing layer (32) having an adhesive coating (34) thereon for adhering the dressing (30) to a patient; the backing layer (32) having a cut-out (48) therein for receiving a grommet member (10); said grommet member (10) having at least one aperture (14) therethrough for receiving a conduit; and, said grommet member (10) further comprising a flange portion (16) in some embodiments for attaching the grommet member (10) to said adhesive coated backing layer (32).
    Type: Application
    Filed: July 25, 2007
    Publication date: April 29, 2010
    Applicants: BlueSky Medical Group Inc., Smith & Nephew, Plc
    Inventors: Richard Scott Weston, Tim Demuro, Paul Demuro, Tianning Xu, Farhad Bybordi, Edward Yerbury Hartwell, Derek Nicolini, Kristian David Hall
  • Patent number: 7706000
    Abstract: A laparoscopy simulator includes two rods and an orientation sensor that determines the orientation of the rods. An optical sensor is used to determine measurements of each rod based on the rotation of the rod around a central axis of the rod and a sliding of the rod along the central axis. An accelerometer is used to determine additional measurements of each rod based on a rotation of the rod around two additional rotation axes of the simulator. The measurements are used to determine the overall orientation of the rods.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: April 27, 2010
    Assignee: Immersion Medical, Inc.
    Inventors: Rob Cohen, Tianning Xu
  • Publication number: 20100100075
    Abstract: A negative pressure wound therapy apparatus can include a wound dressing, a fluid collection container, a vacuum pump comprising a pump motor, and tubing. Additionally, the apparatus can include a pressure sensor that measures a pressure in the tubing. One or more tubes can channel a fluid between the wound dressing, the fluid collection canister, and the pump. In addition, first and second control circuits can be provided for controlling the pump motor without using a processor. The first control circuit can generate a difference signal between a desired pressure input and a pressure sensor input, and can further generate a motor control signal responsive to the difference signal. Moreover, a second control circuit can provide an override signal based at least in part on the difference signal and at least one reference signal. The override signal beneficially overrides the motor control signal to prevent the pump motor from stalling.
    Type: Application
    Filed: October 12, 2007
    Publication date: April 22, 2010
    Applicant: Bluesky Medical Group Inc.
    Inventors: Richard Scott Weston, Tianning Xu
  • Publication number: 20090320227
    Abstract: Systems and methods for monitoring motion parameters of an object are described in the present disclosure. In one embodiment among many, a sensor, coupled to a housing, senses motion associated with the housing and provides a sensor output based on the sensed motion. A processing device receives the sensor output, accumulates counts associated with the sensor output, and provides an output once a threshold associated with the accumulated counts is reached. A vibrotactile device, that receives the output from the processing device, provides a haptic output in response to the output from the processing device. In one embodiment among many, a toothbrush is described as a monitoring mechanism for monitoring a plurality of brush strokes that a user executes with the toothbrush. The monitoring mechanism is incorporated in the handle of the toothbrush. The monitoring mechanism may be used to provide an alert once a sufficient number of brush strokes is achieved.
    Type: Application
    Filed: May 4, 2009
    Publication date: December 31, 2009
    Applicant: Immersion Corporation
    Inventors: Robert F. Cohen, Walter E. Ratzat, Tianning Xu
  • Publication number: 20090225024
    Abstract: Systems and methods are described in the present disclosure for determining the location and orientation of an object placed on a surface. One such system, among others, includes an optical device physically supported by an object at a fixed position with respect to a reference point of the object. The system also includes a surface upon which the object can be placed. A reference pattern, which is applied to the surface, includes an array of markings visible to the optical device. The array of markings includes encoded location information and orientation information. In addition, the system includes a processing device in communication with the optical device. The processing device is configured to calculate the location and orientation of the reference point of the object with respect to the surface.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 10, 2009
    Applicant: Immersion Corporation
    Inventors: Peter Andreas Maspoli Fitzli, J. Michael Brown, Robert F. Cohen, Robert Falk, Tianning Xu