Patents by Inventor Craig Langlois

Craig Langlois 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).

  • Smoke evacuation system
    Patent number: 11911100
    Abstract: Smoke evacuation system for removal of aerosolized chemical compounds and biological fine particles produced during laser treatment of tissue. The rapid smoke evacuation is achieved by coupling a low capacity vacuum pump to a vacuum valve and a vacuum reservoir to create very high flow rate for very short durations. The opening time of the valve could at least partially overlap the laser pulse duration.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: February 27, 2024
    Assignee: Candela Corporation
    Inventors: Jayant Bhawalkar, Amit Paranjape, Kevin Schomacker, Craig Langlois, Herbert Otterson
  • Smoke Evacuation System
    Publication number: 20240041522
    Abstract: A rapid pulsatile smoke extraction system includes a laser handpiece having a sleeve configurable to be applied to tissue; a vacuum pump and a vacuum reservoir; a conduit connecting the reservoir with the sleeve; and a valve inserted in the conduit. A volume of the vacuum reservoir is at least two times larger than a volume of the sleeve, such that operation of the valve supports instantaneous evacuation of smoke and particulate products from the sleeve into the vacuum reservoir.
    Type: Application
    Filed: October 20, 2023
    Publication date: February 8, 2024
    Inventors: Jayant Bhawalkar, Amit Paranjape, Kevin Schomacker, Craig Langlois, Herbert Otterson
  • FRACTIONAL HANDPIECE WITH A PASSIVELY Q-SWITCHED LASER ASSEMBLY
    Publication number: 20230048178
    Abstract: A fractional handpiece and systems thereof for skin treatment include a passively Q-switched laser assembly operatively connected to a pump laser source to receive a pump laser beam having a first wavelength and a beam splitting assembly operable to split a solid beam emitted by the passively Q-switched laser assembly and form an array of micro-beams across a segment of skin. The passively Q-switched laser assembly generates a high power sub-nanosecond pulsed laser beam having a second wavelength.
    Type: Application
    Filed: September 22, 2022
    Publication date: February 16, 2023
    Inventors: Xiaoming Shang, Hui Liu, Craig Langlois, Kevin Schomacker
  • Fractional handpiece with a passively Q-switched laser assembly
    Patent number: 11532919
    Abstract: A fractional handpiece and systems thereof for skin treatment include a passively Q-switched laser assembly operatively connected to a pump laser source to receive a pump laser beam having a first wavelength and a beam splitting assembly operable to split a solid beam emitted by the passively Q-switched laser assembly and form an array of micro-beams across a segment of skin. The passively Q-switched laser assembly generates a high power sub-nanosecond pulsed laser beam having a second wavelength.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: December 20, 2022
    Assignee: CANDELA CORPORATION
    Inventors: Xiaoming Shang, Hui Liu, Craig Langlois, Kevin Schomacker
  • FRACTIONAL HANDPIECE WITH A PASSIVELY Q-SWITCHED LASER ASSEMBLY
    Publication number: 20210376553
    Abstract: A fractional handpiece and systems thereof for skin treatment include a passively Q-switched laser assembly operatively connected to a pump laser source to receive a pump laser beam having a first wavelength and a beam splitting assembly operable to split a solid beam emitted by the passively Q-switched laser assembly and form an array of micro-beams across a segment of skin. The passively Q-switched laser assembly generates a high power sub-nanosecond pulsed laser beam having a second wavelength.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 2, 2021
    Inventors: Xiaoming Shang, Hui Liu, Craig Langlois, Kevin Schomacker
  • Smoke Evacuation System
    Publication number: 20210085393
    Abstract: Smoke evacuation system for removal of aerosolized chemical compounds and biological fine particles produced during laser treatment of tissue. The rapid smoke evacuation is achieved by coupling a low capacity vacuum pump to a vacuum valve and a vacuum reservoir to create very high flow rate for very short durations. The opening time of the valve could at least partially overlap the laser pulse duration.
    Type: Application
    Filed: December 10, 2020
    Publication date: March 25, 2021
    Inventors: Jayant Bhawalkar, Amit Paranjape, Kevin Schomacker, Craig Langlois, Herbert Otterson
  • Smoke evacuation system
    Patent number: 10925669
    Abstract: Smoke evacuation system for removal of aerosolized chemical compounds and biological fine particles produced during laser treatment of tissue. The rapid smoke evacuation is achieved by coupling a low capacity vacuum pump to a vacuum valve and a vacuum reservoir to create very high flow rate for very short durations. The opening time of the valve could at least partially overlap the laser pulse duration.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: February 23, 2021
    Assignee: Candela Corporation
    Inventors: Jayant Bhawalkar, Amit Paranjape, Kevin Schomacker, Craig Langlois, Herbert Otterson
  • Smoke Evacuation System
    Publication number: 20180296268
    Abstract: Smoke evacuation system for removal of aerosolized chemical compounds and biological fine particles produced during laser treatment of tissue. The rapid smoke evacuation is achieved by coupling a low capacity vacuum pump to a vacuum valve and a vacuum reservoir to create very high flow rate for very short durations. The opening time of the valve could at least partially overlap the laser pulse duration.
    Type: Application
    Filed: April 14, 2017
    Publication date: October 18, 2018
    Inventors: Jayant Bhawalkar, Amit Paranjape, Kevin Schomacker, Craig Langlois, Herbert Otterson