Patents by Inventor Clifford Liu

Clifford Liu 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).

  • Publication number: 20170105795
    Abstract: Devices and methods are provided for performing an ablation procedure on tissue with flow monitoring using flow sensors. The devices include a catheter, and at least one flow sensor disposed on the catheter, and a component for applying the ablation procedure. An assessment module provides an indication of the efficacy of the ablation procedure based on the flow measurement from the flow sensor.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 20, 2017
    Inventors: Stephen P. Lee, Clifford Liu, Roozbeh Ghaffari, John Work, Fernando Quivira, Lauren E. Klinker, Yung-Yu Hsu
  • Patent number: 9554850
    Abstract: Devices and methods are provided for performing an ablation procedure on tissue with flow monitoring using flow sensors. The devices include a catheter, and at least one flow sensor disposed on the catheter, and a component for applying the ablation procedure. An assessment module provides an indication of the efficacy of the ablation procedure based on the flow measurement from the flow sensor.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: January 31, 2017
    Assignee: MC10, Inc.
    Inventors: Stephen P. Lee, Clifford Liu, Roozbeh Ghaffari, John Work, Fernando Quivira, Lauren E. Klinker, Yung-Yu Hsu
  • Publication number: 20160095652
    Abstract: Devices and methods are provided for performing an ablation procedure on tissue with flow monitoring using flow sensors. The devices include a catheter, and at least one flow sensor disposed on the catheter, and a component for applying the ablation procedure. An assessment module provides an indication of the efficacy of the ablation procedure based on the flow measurement from the flow sensor.
    Type: Application
    Filed: October 2, 2015
    Publication date: April 7, 2016
    Inventors: Stephen P. Lee, Clifford Liu, Roozbeh Ghaffari, John Work, Fernando Quivira, Lauren E. Klinker, Yung-Yu Hsu
  • Patent number: 9168094
    Abstract: Devices and methods are provided for performing an ablation procedure on tissue with flow monitoring using flow sensors. The devices include a catheter, and at least one flow sensor disposed on the catheter, and a component for applying the ablation procedure. An assessment module provides an indication of the efficacy of the ablation procedure based on the flow measurement from the flow sensor.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 27, 2015
    Assignee: MC10, Inc.
    Inventors: Stephen P. Lee, Clifford Liu, Roozbeh Ghaffari, John Work, Fernando Quivira, Lauren E. Klinker, Yung-Yu Hsu
  • Patent number: 7104983
    Abstract: A medical device is provided which comprises a suction conduit and an energy-transmitting conduit wherein at least some of the transmitted energy is directed to the distal region of the suction conduit. The device may include an optical apparatus for directing the energy. The device has applications in lithotripsy and tissue-removal in a patient.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: September 12, 2006
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael Grasso, III, Douglas Goodshall, Clifford Liu, Anthony Tremaglio, George Bourne
  • Publication number: 20050215980
    Abstract: A medical device for draining fluid from the body of a patient comprises an elongate member that defines a lumen and includes a proximal end and a distal portion. The device further comprises a dilating member disposed in the distal portion of the elongate member. The dilating member comprises a plurality of arms movable from a collapsed state to an expanded state in which the arms protrude radially to anchor the device within the body of the patient. The device includes a tension member that extends through the lumen to the dilating member and couples to the plurality of arms. Application of tension to the tension member causes the arms to move to the collapsed state thereby permitting insertion and removal of the device into and from the body of the patient. Some embodiments include a tension control member disposed at the proximal end of the elongate member and movable in at least a first direction and a second direction to increase and decrease tension to one or more tension members.
    Type: Application
    Filed: April 8, 2005
    Publication date: September 29, 2005
    Inventor: Clifford Liu
  • Publication number: 20050049570
    Abstract: An apparatus and method for access to the inside of a body includes a transparent sheath with a radiopaque marking and fastener for securing a guidewire or catheter. The transparent sheath permits objects located within and near the sheath to be visualized with an external imaging system. Objects located near the sheath can also be observed with an imaging device disposed inside the sheath. The radiopaque marker permits accurate positioning of the sheath in the body. The sheath can be inserted into the body over an interventional device. A fastener prevents migration of a guidewire or catheter during the procedure.
    Type: Application
    Filed: September 27, 2004
    Publication date: March 3, 2005
    Inventors: Yem Chin, Clifford Liu, Benjamin Bottcher, John Adams
  • Publication number: 20040243123
    Abstract: A medical device is provided which comprises a suction conduit and an energy-transmitting conduit wherein at least some of the transmitted energy is directed to the distal region of the suction conduit. The device may include an optical apparatus for directing the energy. The device has applications in lithotripsy and tissue-removal in a patient.
    Type: Application
    Filed: March 16, 2004
    Publication date: December 2, 2004
    Applicant: SCIMED Life Systems, Inc.
    Inventors: Michael Grasso, Douglas Goodshall, Clifford Liu, Anthony Tremaglio, George Bourne
  • Patent number: 6726681
    Abstract: A medical device is provided which comprises a suction conduit and an energy-transmitting conduit wherein at least some of the transmitted energy is directed to the distal region of the suction conduit. The device may include an optical apparatus for directing the energy. The device has applications in lithotripsy and tissue-removal in a patient.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: April 27, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Michael Grasso, III, Douglas Goodshall, Clifford Liu, Anthony Tremaglio
  • Publication number: 20020103477
    Abstract: A medical device is provided which comprises a suction conduit and an energy-transmitting conduit wherein at least some of the transmitted energy is directed to the distal region of the suction conduit. The device may include an optical apparatus for directing the energy. The device has applications in lithotripsy and tissue-removal in a patient.
    Type: Application
    Filed: March 15, 2002
    Publication date: August 1, 2002
    Inventors: Michael Grasso, Douglas Goodshall, Clifford Liu, Anthony Tremaglio
  • Patent number: 6375651
    Abstract: A medical device is provided which includes a suction conduit and an energy-transmitting conduit wherein at least some of the transmitted energy is directed to the distal region of the suction conduit. The device may include an optical apparatus for directing the energy. The device has applications in lithotripsy and tissue-removal in a patient.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: April 23, 2002
    Assignee: Scimed Life Systems, Inc.
    Inventors: Michael Grasso, III, Douglas Goodshall, Clifford Liu, Anthony Tremaglio, George Bourne
  • Publication number: 20020002366
    Abstract: A medical device is provided which comprises a suction conduit and an energy-transmitting conduit wherein at least some of the transmitted energy is directed to the distal region of the suction conduit. The device may include an optical apparatus for directing the energy. The device has applications in lithotripsy and tissue-removal in a patient.
    Type: Application
    Filed: February 18, 2000
    Publication date: January 3, 2002
    Inventors: Michael Grasso, Douglas Godshall, Clifford Liu, Anthony Tremaglio, George Bourne