Patents by Inventor Honggang YU

Honggang YU 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: 20220323153
    Abstract: A side-fire laser fiber (102) includes an optical fiber (112) having a distal end (116) and a fiber cap (114). The fiber cap is coupled to the distal end of the optical fiber and includes a molded reflective surface (130) and a sealed cavity (132A or 132B). The molded reflective surface defines a wall of the cavity. Laser energy discharged from the distal end along a central axis (124) of the optical fiber is reflected off the molded reflective surface in a direction that is transverse to the central axis.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 13, 2022
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Honggang YU, Rongwei Jason XUAN, Jian James ZHANG
  • Publication number: 20220296299
    Abstract: A laser system includes a first cavity to output a laser light along a first path, a first mirror to receive the laser light from the first cavity, and redirect the laser light along a second path that is different than the first path, a beam splitter removably located at a first position on the second path, a beam combiner removably located at a second position on the second path, and an alignment device having first and second alignment features. The first and second alignment features occupy the first position and the second position, respectively, on the second path, when the beam splitter and the beam combiner are removed from the first position and the second position.
    Type: Application
    Filed: June 6, 2022
    Publication date: September 22, 2022
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Honggang YU, Baocheng YANG
  • Patent number: 11399892
    Abstract: A side-fire laser fiber includes an optical fiber having a distal end and a fiber cap. The fiber cap is coupled to the distal end of the optical fiber and includes a molded reflective surface and a sealed cavity. The molded reflective surface defines a wall of the cavity. Laser energy discharged from the distal end along a central axis of the optical fiber is reflected off the molded reflective surface in a direction that is transverse to the central axis.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: August 2, 2022
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Rongwei Jason Xuan, Jian James Zhang
  • Patent number: 11389241
    Abstract: A laser system includes a first cavity to output a laser light along a first path, a first mirror to receive the laser light from the first cavity, and redirect the laser light along a second path that is different than the first path, a beam splitter removably located at a first position on the second path, a beam combiner removably located at a second position on the second path, and an alignment device having first and second alignment features. The first and second alignment features occupy the first position and the second position, respectively, on the second path, when the beam splitter and the beam combiner are removed from the first position and the second position.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: July 19, 2022
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Baocheng Yang
  • Publication number: 20220209488
    Abstract: A surgical laser system includes a pump module configured to produce pump energy within an operating wavelength, a gain medium configured to convert the pump energy into first laser energy, a non-linear crystal (NLC) configured to convert a portion of the first laser energy into second laser energy, which is a harmonic of the first laser energy, an output, and a first path diversion assembly having first and second operating modes. When the first path diversion assembly is in the first operating mode, the first laser energy is directed along the output path to the output, and the second laser energy is diverted from the output path and the output. When the first path diversion assembly is in the second operating mode, the second laser energy is directed along the output path to the output, and the first laser energy is diverted from the output path and the output.
    Type: Application
    Filed: March 18, 2022
    Publication date: June 30, 2022
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Honggang YU, Rongwei Jason XUAN, Jian James ZHANG
  • Patent number: 11342722
    Abstract: Laser systems and methods are disclosed. One laser system comprises: a plurality of laser resonators, each resonator being operable to discharge an input laser beam; a relay assembly including at least one curved reflective surface that redirects each input laser beam, and reduces a beam size of the redirected beam; a galvo including a curved reflective surface that receives each redirected beam, and outputs a combined laser beam at power level greater than a power level of each laser input beam; and a coupling assembly that reduces spherical aberrations in the combined laser beam, and directs the combined laser beam into an optical fiber. In this system, the combined laser beam may have a maximum beam parameter product lower than a minimum beam parameter product of the optical fiber. Related systems and methods are also disclosed.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: May 24, 2022
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Honggang Yu
  • Patent number: 11316318
    Abstract: A surgical laser system includes a pump module configured to produce pump energy within an operating wavelength, a gain medium configured to convert the pump energy into first laser energy, a non-linear crystal (NLC) configured to convert a portion of the first laser energy into second laser energy, which is a harmonic of the first laser energy, an output, and a first path diversion assembly having first and second operating modes. When the first path diversion assembly is in the first operating mode, the first laser energy is directed along the output path to the output, and the second laser energy is diverted from the output path and the output. When the first path diversion assembly is in the second operating mode, the second laser energy is directed along the output path to the output, and the first laser energy is diverted from the output path and the output.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: April 26, 2022
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Rongwei Jason Xuan, Jian James Zhang
  • Publication number: 20220079673
    Abstract: A surgical laser system includes an array of laser diodes that are configured to output laser energy, a fiber bundle, a delivery fiber, and a tubular sheath. The fiber bundle includes a plurality of optical fibers and has a proximal end that is configured to receive laser energy from the array of laser diodes. The delivery fiber includes a proximal end that is configured to receive laser energy from a distal end of the fiber bundle. The tubular sheath defines a lumen, in which at least a portion of the delivery fiber is disposed. The tubular sheath is insertable into a working channel of an endoscope or a cystoscope. A distal end of the tubular sheath is configured to deliver laser energy discharged from the delivery fiber into a body of a patient.
    Type: Application
    Filed: November 24, 2021
    Publication date: March 17, 2022
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Honggang YU, Rongwei Jason XUAN, Jian James ZHANG, David N. HORN, Xirong YANG, Thomas HASENBERG
  • Patent number: 11213351
    Abstract: A surgical laser system includes an array of laser diodes that are configured to output laser energy, a fiber bundle, a delivery fiber, and a tubular sheath. The fiber bundle includes a plurality of optical fibers and has a proximal end that is configured to receive laser energy from the array of laser diodes. The delivery fiber includes a proximal end that is configured to receive laser energy from a distal end of the fiber bundle. The tubular sheath defines a lumen, in which at least a portion of the delivery fiber is disposed. The tubular sheath is insertable into a working channel of an endoscope or a cystoscope. A distal end of the tubular sheath is configured to deliver laser energy discharged from the delivery fiber into a body of a patient.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: January 4, 2022
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Rongwei Jason Xuan, Jian James Zhang, David N. Horn, Xirong Yang, Thomas Hasenberg
  • Publication number: 20210389598
    Abstract: A laser system may include a laser resonator configured to emit an input laser beam having an elliptical cross-sectional shape. The laser system also may include first reflective device configured to reflect the input laser beam to produce a first reflected laser beam. The first reflective device may include a spherical surface for reflecting the input laser beam. The laser system also may include a second reflective device configured to reflect the first reflected laser beam to produce a second reflected laser beam. The laser system also may include a coupling device configured to focus the second reflected laser beam to produce an output laser beam. The coupling device may include a spherical surface for receiving the second reflected laser beam. The laser system also may include an optic fiber configured to transmit the output laser beam for emission of the output laser beam onto a target area.
    Type: Application
    Filed: August 26, 2021
    Publication date: December 16, 2021
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Honggang YU
  • Patent number: 11131859
    Abstract: A laser system may include a laser resonator configured to emit an input laser beam having an elliptical cross-sectional shape. The laser system also may include first reflective device configured to reflect the input laser beam to produce a first reflected laser beam. The first reflective device may include a spherical surface for reflecting the input laser beam. The laser system also may include a second reflective device configured to reflect the first reflected laser beam to produce a second reflected laser beam. The laser system also may include a coupling device configured to focus the second reflected laser beam to produce an output laser beam. The coupling device may include a spherical surface for receiving the second reflected laser beam. The laser system also may include an optic fiber configured to transmit the output laser beam for emission of the output laser beam onto a target area.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: September 28, 2021
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Honggang Yu
  • Publication number: 20210044072
    Abstract: Laser systems and methods are disclosed. One laser system comprises: a plurality of laser resonators, each resonator being operable to discharge an input laser beam; a relay assembly including at least one curved reflective surface that redirects each input laser beam, and reduces a beam size of the redirected beam; a galvo including a curved reflective surface that receives each redirected beam, and outputs a combined laser beam at power level greater than a power level of each laser input beam; and a coupling assembly that reduces spherical aberrations in the combined laser beam, and directs the combined laser beam into an optical fiber. In this system, the combined laser beam may have a maximum beam parameter product lower than a minimum beam parameter product of the optical fiber. Related systems and methods are also disclosed.
    Type: Application
    Filed: October 13, 2020
    Publication date: February 11, 2021
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Honggang YU
  • Publication number: 20200364880
    Abstract: A method for monitoring a colonoscope withdrawal speed, the method including: 1) acquiring, a real-time video of colonoscopy, decoding the video into images, cropping the images, and zooming-out the images cropped where texture information of the images is retained; 2) converting the images including the texture information to grayscale images; 3) obtaining Hash fingerprints of the images; 4) calculating a Hamming distance between the images; 5) comparing the Hash fingerprints of a current colonoscopy image with n previous colonoscopy images, to obtain an overlapping rate of the current colonoscopy image with any one of the n previous colonoscopy images; 6) calculating a weighted similarity of the images at a point in time t; 7) converting a weighted overlapping rate of the images at the point in time t into a stability coefficient; and 8) calculating a mean stability coefficient of colonoscopy images within a period of time 0-t.
    Type: Application
    Filed: August 5, 2020
    Publication date: November 19, 2020
    Inventors: Honggang YU, Bin LIU, Shan HU, Lianlian WU
  • Patent number: 10840666
    Abstract: Laser systems and methods are disclosed. One laser system comprises: a plurality of laser resonators, each resonator being operable to discharge an input laser beam; a relay assembly including at least one curved reflective surface that redirects each input laser beam, and reduces a beam size of the redirected beam; a galvo including a curved reflective surface that receives each redirected beam, and outputs a combined laser beam at power level greater than a power level of each laser input beam; and a coupling assembly that reduces spherical aberrations in the combined laser beam, and directs the combined laser beam into an optical fiber. In this system, the combined laser beam may have a maximum beam parameter product lower than a minimum beam parameter product of the optical fiber. Related systems and methods are also disclosed.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: November 17, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Honggang Yu
  • Publication number: 20200222118
    Abstract: A laser system includes a first cavity to output a laser light along a first path, a first mirror to receive the laser light from the first cavity, and redirect the laser light along a second path that is different than the first path, a beam splitter removably located at a first position on the second path, a beam combiner removably located at a second position on the second path, and an alignment device having first and second alignment features. The first and second alignment features occupy the first position and the second position, respectively, on the second path, when the beam splitter and the beam combiner are removed from the first position and the second position.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 16, 2020
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Baocheng Yang
  • Publication number: 20200163716
    Abstract: Aspects of this disclosure pertain to a device with an elongated body having a distal end. The distal end may comprise a port that permits discharge of a laser energy towards a tissue from an optical fiber located in the distal end. An exterior surface of the distal end may include a cauterization portion that permits discharge of a cauterization energy towards the tissue. In some aspects, the device includes an insulative portion that attaches the distal end to the elongated body and limits energy transfer therebetween. Related systems and methods are also disclosed.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Hui WANG, Wen-Jui Ray CHIA, Rongwei Jason XUAN, Jian James ZHANG, Aditi RAY, Honggang YU
  • Patent number: 10582967
    Abstract: Aspects of this disclosure pertain to a device with an elongated body having a distal end. The distal end may comprise a port that permits discharge of a laser energy towards a tissue from an optical fiber located in the distal end. An exterior surface of the distal end may include a cauterization portion that permits discharge of a cauterization energy towards the tissue. In some aspects, the device includes an insulative portion that attaches the distal end to the elongated body and limits energy transfer therebetween. Related systems and methods are also disclosed.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: March 10, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Hui Wang, Wen-Jui Ray Chia, Rongwei Jason Xuan, Jian James Zhang, Aditi Ray, Honggang Yu
  • Publication number: 20190393669
    Abstract: A surgical laser system includes a pump module configured to produce pump energy within an operating wavelength, a gain medium configured to convert the pump energy into first laser energy, a non-linear crystal (NLC) configured to convert a portion of the first laser energy into second laser energy, which is a harmonic of the first laser energy, an output, and a first path diversion assembly having first and second operating modes. When the first path diversion assembly is in the first operating mode, the first laser energy is directed along the output path to the output, and the second laser energy is diverted from the output path and the output. When the first path diversion assembly is in the second operating mode, the second laser energy is directed along the output path to the output, and the first laser energy is diverted from the output path and the output.
    Type: Application
    Filed: September 9, 2019
    Publication date: December 26, 2019
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Rongwei Jason Xuan, Jian James Zhang
  • Publication number: 20190350654
    Abstract: In one aspect of the present disclosure, a laser fiber may include an optical fiber. The optical fiber may include a proximal portion. The optical fiber also may include a distal portion having a distal end. The optical fiber may be configured to transmit laser energy from the proximal portion to the distal portion for emission of the laser energy from the distal end. The optical fiber also may include a distal tip surrounding the distal portion to protect the distal portion. The distal tip may include a sheet glass material having a laser energy emitting surface. The laser energy emitting surface may be defined by a chemically-strengthened surface layer.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Honggang YU, Rongwei Jason XUAN, Jian ZHANG, Charles Alexander Ikan BURDAN
  • Patent number: 10454237
    Abstract: A surgical laser system includes a pump module configured to produce pump energy within an operating wavelength, a gain medium configured to convert the pump energy into first laser energy, a non-linear crystal (NLC) configured to convert a portion of the first laser energy into second laser energy, which is a harmonic of the first laser energy, an output, and a first path diversion assembly having first and second operating modes. When the first path diversion assembly is in the first operating mode, the first laser energy is directed along the output path to the output, and the second laser energy is diverted from the output path and the output. When the first path diversion assembly is in the second operating mode, the second laser energy is directed along the output path to the output, and the first laser energy is diverted from the output path and the output.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: October 22, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Rongwei Jason Xuan, Jian James Zhang