Patents by Inventor Wen-Shiang Chen

Wen-Shiang Chen 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).

  • High-Intensity Ultrasonic Vessel Ablator Using Blood Flow Signal for Precise Positioning
    Publication number: 20090264755
    Abstract: The present invention relates to a precise blood vessel positioning and high-intensity focused ultrasound ablator by use of one ultrasound transducer.
    Type: Application
    Filed: April 22, 2008
    Publication date: October 22, 2009
    Applicant: National Taiwan University
    Inventors: Wen-Shiang Chen, Chih-Ching Wu, Chiung-Nien Chen, Ming-Chih Ho, Po-Huang Lee
  • ARTIFICIAL SPHINCTER SYSTEM
    Publication number: 20090248151
    Abstract: The present invention relates to a kind of artificial sphincter system, which takes shape memory alloy (SMA) as its motion device, and then cooperates with controlled circuit to imitate the motion of human sphincter, especially in imitating iris. The present invention can be used in a human body, a robot or a machine.
    Type: Application
    Filed: June 17, 2008
    Publication date: October 1, 2009
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Wen-Shiang Chen, Hao-Li Liu, Yen-Tung Huang, Chien-Ching Ma, Wei-Bor Tsai, Wen-Pin Shih, Chi-An Dai
  • Non-invasive positioning system for locating the focus of high-intensity focused ultrasound
    Publication number: 20070232912
    Abstract: A non-invasive positioning system for determining the focus location of a HIFU device comprises a diagnostic ultrasound and the HIFU for ablating and removing tumor tissue. The imaging plane of the diagnostic ultrasound probe and the geometrical axis of a probe of the HIFU define an inclining angle during operation. When the imaging plane of the diagnostic ultrasound intersected to the focus of the HIFU transducer, a maximal convergent interference signals was obtained, so as to position the HIFU focus within tumors for precise ablation.
    Type: Application
    Filed: February 16, 2007
    Publication date: October 4, 2007
    Inventors: Chiung-Nien Chen, Po-Huang Lee, Wen-Shiang Chen, Ming-Chih Ho, Chih-Ching Wu