Patents by Inventor Lawrence Go

Lawrence Go 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: 10130387
    Abstract: A sheath comprises an elastomeric tube having a self-expanding scaffold coupled to a wall. The scaffold can expand to a diameter larger than the tube diameter to provide an enlarged distal opening. An aspiration catheter has a balloon and an aspiration port so that occlusive material can be removed from a blood vessel by drawing the balloon through the vessel while simultaneously aspirating through the port.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: November 20, 2018
    Assignee: Covidien LP
    Inventors: Robert McRae, Jessica Clayton, James Hanlon, Lawrence Go, Tim Huynh
  • Patent number: 9808266
    Abstract: The apparatus includes a catheter having a combined infusion/aspiration lumen, a three lumen proximal portion and a two lumen distal portion. An infusion/aspiration valve located at the distal end of the catheter facilitates performing infusion and aspiration through the same lumen, which in turn reduces the number of lumens, and enables the combined infusion/aspiration lumen to be made larger without the need to increase the diameter of the catheter. Differing material properties in the proximal and distal portions of the catheter enable the proximal portion to be made stiffer for pushability, while the distal portion is more flexible to navigate tortuous vasculature and enable a greater amplitude agitator to be received within the catheter.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: November 7, 2017
    Assignee: Covidien LP
    Inventors: Miranda Ray, Jessica Clayton, Lawrence Go, Michael Thai, James Hanlon, Young Vo
  • Publication number: 20160249943
    Abstract: The apparatus includes a catheter having a combined infusion/aspiration lumen, a three lumen proximal portion and a two lumen distal portion. An infusion/aspiration valve located at the distal end of the catheter facilitates performing infusion and aspiration through (he same lumen, which in turn reduces the number of lumens, and enables the combined infusion/aspiration lumen to be made larger without the need to increase the diameter of the catheter. Differing material properties in the proximal and distal portions of the catheter enable the proximal portion to be made stiffer for pushability, while the distal portion is more flexible to navigate tortuous vasculature and enable a greater amplitude agitator to be received within the catheter.
    Type: Application
    Filed: May 9, 2016
    Publication date: September 1, 2016
    Inventors: Miranda Ray, Jessica Clayton, Lawrence Go, Michael Thai, James Hanlon, Young Vo
  • Patent number: 9332998
    Abstract: The apparatus includes a catheter having a combined infusion/aspiration lumen, a three lumen proximal portion and a two lumen distal portion. An infusion/aspiration valve located at the distal end of the catheter facilitates performing infusion and aspiration through the same lumen, which in turn reduces the number of lumens, and enables the combined infusion/aspiration lumen to be made larger without the need to increase the diameter of the catheter. Differing material properties in the proximal and distal portions of the catheter enable the proximal portion to be made stiffer for pushability, while the distal portion is more flexible to navigate tortuous vasculature and enable a greater amplitude agitator to be received within the catheter.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 10, 2016
    Assignee: Covidien LP
    Inventors: Miranda Ray, Jessica Clayton, Lawrence Go, Michael Thai, James Hanlon, Young Vo
  • Patent number: 9332999
    Abstract: The apparatus includes a catheter having a combined infusion/aspiration lumen, a three lumen proximal portion and a two lumen distal portion. An infusion/aspiration valve located at the distal end of the catheter facilitates performing infusion and aspiration through the same lumen, which in turn reduces the number of lumens, and enables the combined infusion/aspiration lumen to be made larger without the need to increase the diameter of the catheter. Differing material properties in the proximal and distal portions of the catheter enable the proximal portion to be made stiffer for pushability, while the distal portion is more flexible to navigate tortuous vasculature and enable a greater amplitude agitator to be received within the catheter.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 10, 2016
    Assignee: Covidien LP
    Inventors: Miranda Ray, Jessica Clayton, Lawrence Go, Michael Thai, James Hanlon, Young Vo
  • Publication number: 20140379012
    Abstract: A sheath comprises an elastomeric tube having a self-expanding scaffold coupled to a wall. The scaffold can expand to a diameter larger than the tube diameter to provide an enlarged distal opening. An aspiration catheter has a balloon and an aspiration port so that occlusive material can be removed from a blood vessel by drawing the balloon through the vessel while simultaneously aspirating through the port.
    Type: Application
    Filed: September 10, 2014
    Publication date: December 25, 2014
    Inventors: Robert McRae, Jessica Clayton, James Hanlon, Lawrence Go, Tim Huynh
  • Publication number: 20140046243
    Abstract: The apparatus includes a catheter having a combined infusion/aspiration lumen, a three lumen proximal portion and a two lumen distal portion. An infusion/aspiration valve located at the distal end of the catheter facilitates performing infusion and aspiration through the same lumen, which in turn reduces the number of lumens, and enables the combined infusion/aspiration lumen to be made larger without the need to increase the diameter of the catheter. Differing material properties in the proximal and distal portions of the catheter enable the proximal portion to be made stiffer for pushability, while the distal portion is more flexible to navigate tortuous vasculature and enable a greater amplitude agitator to be received within the catheter.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 13, 2014
    Applicant: COVIDIEN LP
    Inventors: Miranda Ray, Jessica Clayton, Lawrence Go, Michael Thai, James Hanlon, Young Vo
  • Publication number: 20140046244
    Abstract: The apparatus includes a catheter having a combined infusion/aspiration lumen, a three lumen proximal portion and a two lumen distal portion. An infusion/aspiration valve located at the distal end of the catheter facilitates performing infusion and aspiration through the same lumen, which in turn reduces the number of lumens, and enables the combined infusion/aspiration lumen to be made larger without the need to increase the diameter of the catheter. Differing material properties in the proximal and distal portions of the catheter enable the proximal portion to be made stiffer for pushability, while the distal portion is more flexible to navigate tortuous vasculature and enable a greater amplitude agitator to be received within the catheter.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 13, 2014
    Applicant: COVIDIEN LP
    Inventors: Miranda Ray, Jessica Clayton, Lawrence Go, Michael Thai, James Hanlon, Young Vo