Patents by Inventor Yannan OUYANG

Yannan OUYANG 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).

  • Flushable multi-lumen catheter device and method of use
    Patent number: 10974024
    Abstract: This invention relates to a multi-lumen flushable catheter device and a kit including this device. The multi-lumen catheter is made of a single lumen catheter in fluid connection with a multi-lumen catheter. The multi-lumen catheter includes a fluid lumen and a backflow connection lumen; wherein the fluid lumen and a backflow connection lumen are in fluid communication; a pressure control lumen made of a proximal port to receive a fluid such as air or a liquid and a distal balloon, the distal balloon is configured to block the single lumen catheter to prevent fluid flow into the single lumen catheter, wherein the pressure control lumen is not in fluid connection with the central lumen of the multi-lumen catheter. This device allows cleaning of in dwelling catheter in situ.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: April 13, 2021
    Inventor: Yannan Ouyang
  • FLUSHABLE MULTI-LUMEN CATHETER DEVICE AND METHOD OF USE
    Publication number: 20210100976
    Abstract: This invention relates to a multi-lumen flushable catheter device and a kit including this device. The multi-lumen catheter is made of a single lumen catheter in fluid connection with a multi-lumen catheter. The multi-lumen catheter includes a fluid lumen and a backflow connection lumen; wherein the fluid lumen and a backflow connection lumen are in fluid communication; a pressure control lumen made of a proximal port to receive a fluid such as air or a liquid and a distal balloon, the distal balloon is configured to block the single lumen catheter to prevent fluid flow into the single lumen catheter, wherein the pressure control lumen is not in fluid connection with the central lumen of the multi-lumen catheter. This device allows cleaning of in dwelling catheter in situ.
    Type: Application
    Filed: October 4, 2019
    Publication date: April 8, 2021
    Inventor: Yannan Ouyang
  • Flushable catheter affixed to a wash line activated by a microfluidic pressure switch
    Patent number: 10441744
    Abstract: This invention relates to systems for delivering medical devices, as well as related systems and methods. The invention also relates to methods of prevention and treatment of biofilm related contamination of systems or devices for medication delivery and methods of treating medical devices, such as catheters, to prevent infection from said device.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: October 15, 2019
    Inventor: Yannan Ouyang
  • FLUSHABLE CATHETER AFFIXED TO A WASH LINE ACTIVATED BY A MICROFLUIDIC PRESSURE SWITCH
    Publication number: 20150343170
    Abstract: This invention relates to systems for delivering medical devices, as well as related systems and methods. The invention also relates to methods of prevention and treatment of biofilm related contamination of systems or devices for medication delivery and methods of treating medical devices, such as catheters, to prevent infection from said device.
    Type: Application
    Filed: May 12, 2014
    Publication date: December 3, 2015
    Inventor: Yannan OUYANG