Patents by Inventor Xin Dou

Xin Dou 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: 11071589
    Abstract: Systems and methods relating to placement of an ultrasound transducer for a procedure. In a non-limiting embodiment, a 3D environment including images of a body region of a patient, as well as images including a first virtual representation of an ablation needle at a first location and a second virtual representation of an ultrasound transducer at a second location is rendered on a display device. A determination may be made as to whether the first and second virtual representations collide at a first collision point. If so, at least one parameter associated with an orientation and/or position of the second virtual representation may be adjusted. A determination may then be made as to whether or not the first and second virtual representations still collide and, in response to determining that there is no collision, position data indicating the location of the second virtual representation after the adjustment, is stored.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: July 27, 2021
    Assignee: EDDA TECHNOLOGY, INC.
    Inventors: Cheng-Chung Liang, Li Fan, Guo-Qing Wei, Xin Dou, Jianzhong Qian, Xiaolan Zeng
  • Patent number: 10993678
    Abstract: A system for providing visual three dimensional assistance to a user during a medical procedure involving a soft organ. The system and method provide visual assistance to a user during a medical procedure involving a soft organ. The system and method utilize a processor for generating an image of the soft organ, a surgical instrument tracker for tracking a surgical instrument during the medical procedure, and a display in communication with the processor and the surgical instrument tracker for visually displaying in three dimensions, the image of the soft organ and the surgical instrument in relation to the soft organ.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: May 4, 2021
    Assignee: EDDA TECHNOLOGY MEDICAL SOLUTIONS (SUZHOU) LTD.
    Inventors: Cheng-Chung Liang, Li Fan, Jian-Zhong Qian, Xiaolan Zeng, Xin Dou, Changbo Yang, Guo-Qing Wei
  • Publication number: 20190330707
    Abstract: Provided is a method for the high expression of a recombinant human serum albumin, characterized in comprising the step of co-expressing: (a) a human serum albumin gene, and (b) one or more rHSA expression promoting factor genes in a yeast host cell.
    Type: Application
    Filed: May 4, 2017
    Publication date: October 31, 2019
    Applicant: Shenzhen Protgen Ltd.
    Inventors: Guodong Chang, Xin Dou, Xiaobo Xiong, Wenchao Wang
  • Patent number: 10307079
    Abstract: The present teaching relates to surgical procedure assistance. In one example, a first image of an organ having a lesion is obtained prior to a surgical procedure. Information related to a pose of a surgical instrument at a first location with respect to the lesion is received from a sensor coupled with the surgical instrument. A visual environment having the lesion and the surgical instrument rendered therein is generated based on the first image and the information received from the sensor. A second image of the organ is obtained when the surgical instrument is moved to a second location with respect to the lesion during the surgical procedure. The second image captures the lesion and the surgical instrument. The pose of the surgical instrument and the lesion rendered in the visual environment are adjusted based, at least in part, on the second image.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: June 4, 2019
    Assignee: EDDA TECHNOLOGY, INC.
    Inventors: Guo-Qing Wei, Xin Dou, Li Fan, Xiaolan Zeng, Jian-Zhong Qian, Cheng-Chung Liang
  • Patent number: 10292772
    Abstract: The present teaching relates to surgical procedure assistance. In one example, a first set of positions of a plurality of sensors are obtained in an image captured prior to a surgical procedure. The plurality of sensors are coupled with a patient's body. One or more second sets of positions of the plurality of sensors are obtained based on information from a tracking device associated with the plurality of sensors. The one or more second sets of positions change in accordance with movement of the patient's body. One or more similarity measures are calculated between the first set of positions and each of the one or more second sets of positions of the plurality of sensors. A timing at which the surgical procedure initiates is determined based on the one or more similarity measures.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: May 21, 2019
    Assignee: EDDA TECHNOLOGY, INC.
    Inventors: Guo-Qing Wei, Xin Dou, Li Fan, Cheng-Chung Liang, Jian-Zhong Qian, Xiaolan Zeng
  • Patent number: 10083278
    Abstract: The present teaching relates to surgical procedure assistance. In one example, a plurality of similarity measures are determined between a first set of positions and a plurality of second sets of positions, respectively. The first set of positions is obtained with respect to a plurality of sensors coupled with a patient in an image captured prior to a surgical procedure. The plurality of second sets of positions are obtained from the plurality of sensors and change in accordance with movement of the patient. A target lesion is segmented in the image captured prior to the surgical procedure to obtain a lesion display object. The lesion display object is duplicated to generate a plurality of lesion display objects. The plurality of lesion display objects are presented on a display screen so that a distance between the plurality of lesion display objects changes in accordance with the plurality of the similarity measures.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: September 25, 2018
    Assignee: EDDA TECHNOLOGY, INC.
    Inventors: Guo-Qing Wei, Xin Dou, Cheng-Chung Liang, Li Fan, Jian-Zhong Qian, Xiaolan Zeng
  • Publication number: 20170347988
    Abstract: Systems and methods relating to placement of an ultrasound transducer for a procedure. In a non-limiting embodiment, a 3D environment including images of a body region of a patient, as well as images including a first virtual representation of an ablation needle at a first location and a second virtual representation of an ultrasound transducer at a second location is rendered on a display device. A determination may be made as to whether the first and second virtual representations collide at a first collision point. If so, at least one parameter associated with an orientation and/or position of the second virtual representation may be adjusted. A determination may then be made as to whether or not the first and second virtual representations still collide and, in response to determining that there is no collision, position data indicating the location of the second virtual representation after the adjustment, is stored.
    Type: Application
    Filed: June 6, 2017
    Publication date: December 7, 2017
    Inventors: Cheng-Chung LIANG, Li FAN, Guo-Qing WEI, Xin DOU, Jianzhong QIAN, Xiaolan ZENG
  • Publication number: 20150223901
    Abstract: The present teaching relates to surgical procedure assistance. In one example, a plurality of similarity measures are determined between a first set of positions and a plurality of second sets of positions, respectively. The first set of positions is obtained with respect to a plurality of sensors coupled with a patient in an image captured prior to a surgical procedure. The plurality of second sets of positions are obtained from the plurality of sensors and change in accordance with movement of the patient. A target lesion is segmented in the image captured prior to the surgical procedure to obtain a lesion display object. The lesion display object is duplicated to generate a plurality of lesion display objects. The plurality of lesion display objects are presented on a display screen so that a distance between the plurality of lesion display objects changes in accordance with the plurality of the similarity measures.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 13, 2015
    Inventors: Guo-Qing Wei, Xin Dou, Cheng-Chung Liang, Li Fan, Jian-Zhong Qian, Xiaolan Zeng
  • Publication number: 20150216616
    Abstract: The present teaching relates to surgical procedure assistance. In one example, a first set of positions of a plurality of sensors are obtained in an image captured prior to a surgical procedure. The plurality of sensors are coupled with a patient's body. One or more second sets of positions of the plurality of sensors are obtained based on information from a tracking device associated with the plurality of sensors. The one or more second sets of positions change in accordance with movement of the patient's body. One or more similarity measures are calculated between the first set of positions and each of the one or more second sets of positions of the plurality of sensors. A timing at which the surgical procedure initiates is determined based on the one or more similarity measures.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 6, 2015
    Inventors: Guo-Qing Wei, Xin Dou, Li Fan, Cheng-Chung Liang, Jian-Zhong Qian, Xiaolan Zeng
  • Publication number: 20150208948
    Abstract: The present teaching relates to surgical procedure assistance. In one example, a first image of an organ having a lesion is obtained prior to a surgical procedure. Information related to a pose of a surgical instrument at a first location with respect to the lesion is received from a sensor coupled with the surgical instrument. A visual environment having the lesion and the surgical instrument rendered therein is generated based on the first image and the information received from the sensor. A second image of the organ is obtained when the surgical instrument is moved to a second location with respect to the lesion during the surgical procedure. The second image captures the lesion and the surgical instrument. The pose of the surgical instrument and the lesion rendered in the visual environment are adjusted based, at least in part, on the second image.
    Type: Application
    Filed: January 23, 2015
    Publication date: July 30, 2015
    Inventors: Guo-Qing Wei, Xin Dou, Li Fan, Xiaolan Zeng, Jian-Zhong Qian, Cheng-Chung Liang
  • Publication number: 20120209106
    Abstract: A system for providing visual three dimensional assistance to a user during a medical procedure involving a soft organ. The system and method provide visual assistance to a user during a medical procedure involving a soft organ. The system and method utilize a processor for generating an image of the soft organ, a surgical instrument tracker for tracking a surgical instrument during the medical procedure, and a display in communication with the processor and the surgical instrument tracker for visually displaying in three dimensions, the image of the soft organ and the surgical instrument in relation to the soft organ.
    Type: Application
    Filed: November 23, 2011
    Publication date: August 16, 2012
    Applicants: EDDA TECHNOLOGY (SUZHOU) LTD., EDDA TECHNOLOGY, INC.
    Inventors: Cheng-Chung Liang, Li Fan, Jian-Zhong Qian, Xiaolan Zeng, Xin Dou, Changbo Yang, Guo-Qing Wei