Patents by Inventor Qiwu Ding

Qiwu Ding 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).

  • Method and apparatus for breaking up calculi in urinary intracavity by milling
    Patent number: 8562625
    Abstract: The present invention discloses calculi breakup method and apparatus. The method comprises: inserting a combination of an endoscope with a driving assembly and a milling assembly, or a combination of an endoscope and a sleeve with a driving assembly and a milling assembly into the urinary intracavity; starting up a driving unit to drive the milling assembly so as to mill the calculi in the intracavity into powder; and, discharging the milled calculi powder out of the body. Compared to the other calculi breakup method, the calculi breakup apparatus according to the present invention has the advantages of high calculi breakup speed, high efficiency, no heat during the calculi breakup, no hurt to the urinary mucous membrane, painless, short time for the treatment, low calculi residual rate, simple operation, and easy maintenance.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: October 22, 2013
    Assignee: Qiwu Dang
    Inventor: Qiwu Ding
  • METHOD AND APPARATUS FOR BREAKING UP CALCULI IN URINARY INTRACAVITY BY MILLING
    Publication number: 20110251623
    Abstract: The present invention discloses calculi breakup method and apparatus. The method comprises: inserting a combination of an endoscope with a driving assembly and a milling assembly, or a combination of an endoscope and a sleeve with a driving assembly and a milling assembly into the urinary intracavity; starting up a driving unit to drive the milling assembly so as to mill the calculi in the intracavity into powder; and, discharging the milled calculi powder out of the body. Compared to the other calculi breakup method, the calculi breakup apparatus according to the present invention has the advantages of high calculi breakup speed, high efficiency, no heat during the calculi breakup, no hurt to the urinary mucous membrane, painless, short time for the treatment, low calculi residual rate, simple operation, and easy maintenance.
    Type: Application
    Filed: September 29, 2009
    Publication date: October 13, 2011
    Inventor: Qiwu Ding