Patents by Inventor Charles C.H. Chan

Charles C.H. Chan 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: 11471061
    Abstract: Intravascular diagnosis apparatus and methods are disclosed. In one aspect of the disclosed technology, a intravascular diagnosis apparatus includes a monitoring guidewire and a display unit. The monitoring guidewire includes a core wire and a sensor disposed in a distal region of the core wire. The display unit includes a processor and a display screen, and is capable of receiving communication from the monitoring guidewire. The display unit is configured to perform computations using the processor based on communications received from the monitoring guidewire and is configured to display information on the display screen based on the computations. The display unit can be configured to be disposed after a predetermined number of uses or after a predetermined duration of use.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: October 18, 2022
    Assignee: ZURICH MEDICAL CORPORATION
    Inventors: Kin-Joe Sham, James V. Donadio, III, Charles C. H. Chan, Paul Michael McSherry, Paul J. Gam
  • Publication number: 20210068755
    Abstract: Intravascular diagnosis apparatus and methods are disclosed. In one aspect of the disclosed technology, a monitoring guidewire includes a core wire having or made of one or more of MP35N, L605, Elgiloy, and an alloy of nickel, cobalt, molybdenum and chromium, a sensor disposed in a distal region of the core wire, and a housing substantially coextensive with the core wire and surrounding the core wire, the housing being more flexible than the core wire for at least the distal portion of the housing.
    Type: Application
    Filed: November 17, 2020
    Publication date: March 11, 2021
    Inventors: Kin-Joe Sham, James V. Donadio, III, Charles C.H. Chan
  • Patent number: 10835183
    Abstract: Intravascular diagnosis apparatus and methods are disclosed. In one aspect of the disclosed technology, a monitoring guidewire includes a core wire having or made of one or more of MP35N, L605, Elgiloy, and an alloy of nickel, cobalt, molybdenum and chromium, a sensor disposed in a distal region of the core wire, and a housing substantially coextensive with the core wire and surrounding the core wire, the housing being more flexible than the core wire for at least the distal portion of the housing.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 17, 2020
    Assignee: ZURICH MEDICAL CORPORATION
    Inventors: Kin-Joe Sham, James V. Donadio, III, Charles C. H. Chan
  • Publication number: 20200305728
    Abstract: Intravascular diagnosis apparatus and methods are disclosed. In one aspect of the disclosed technology, a intravascular diagnosis apparatus includes a monitoring guidewire and a display unit. The monitoring guidewire includes a core wire and a sensor disposed in a distal region of the core wire. The display unit includes a processor and a display screen, and is capable of receiving communication from the monitoring guidewire. The display unit is configured to perform computations using the processor based on communications received from the monitoring guidewire and is configured to display information on the display screen based on the computations. The display unit can be configured to be disposed after a predetermined number of uses or after a predetermined duration of use.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Inventors: Kin-Joe Sham, James V. Donadio, III, Charles C.H. Chan, Paul Michael McSherry, Paul J. Gam
  • Patent number: 10702170
    Abstract: Intravascular diagnosis apparatus and methods are disclosed. In one aspect of the disclosed technology, a intravascular diagnosis apparatus includes a monitoring guidewire and a display unit. The monitoring guidewire includes a core wire and a sensor disposed in a distal region of the core wire. The display unit includes a processor and a display screen, and is capable of receiving communication from the monitoring guidewire. The display unit is configured to perform computations using the processor based on communications received from the monitoring guidewire and is configured to display information on the display screen based on the computations. The display unit can be configured to be disposed after a predetermined number of uses or after a predetermined duration of use.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: July 7, 2020
    Assignee: ZURICH MEDICAL CORPORATION
    Inventors: Kin-Joe Sham, James V. Donadio, III, Charles C. H. Chan, Paul Michael McSherry, Paul J. Gam
  • Publication number: 20160051196
    Abstract: Intravascular diagnosis apparatus and methods are disclosed. In one aspect of the disclosed technology, a monitoring guidewire includes a core wire, a sensor disposed in a distal region of the core wire, and a hypotube substantially coextensive with the core wire and surrounding the core wire, the hypotube having laser etching along at most 40 cm of the distal portion of the hypotube.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Inventors: Kin-Joe Sham, James V. Donadio, III, Charles C.H. Chan
  • Publication number: 20150289815
    Abstract: Intravascular diagnosis apparatus and methods are disclosed. In one aspect of the disclosed technology, a monitoring guidewire includes a core wire having or made of one or more of MP35N, L605, Elgiloy, and an alloy of nickel, cobalt, molybdenum and chromium, a sensor disposed in a distal region of the core wire, and a housing substantially coextensive with the core wire and surrounding the core wire, the housing being more flexible than the core wire for at least the distal portion of the housing.
    Type: Application
    Filed: June 23, 2015
    Publication date: October 15, 2015
    Inventors: Kin-Joe Sham, James V. Donadio, III, Charles C.H. Chan
  • Publication number: 20150005648
    Abstract: Intravascular diagnosis apparatus and methods are disclosed. In one aspect of the disclosed technology, a intravascular diagnosis apparatus includes a monitoring guidewire and a display unit. The monitoring guidewire includes a core wire and a sensor disposed in a distal region of the core wire. The display unit includes a processor and a display screen, and is capable of receiving communication from the monitoring guidewire. The display unit is configured to perform computations using the processor based on communications received from the monitoring guidewire and is configured to display information on the display screen based on the computations. The display unit can be configured to be disposed after a predetermined number of uses or after a predetermined duration of use.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 1, 2015
    Inventors: Kin-Joe Sham, James V. Donadio, III, Charles C.H. Chan, Paul Michael McSherry, Paul J. Gam