Patents by Inventor Jian James Zhang

Jian James Zhang 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: 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
  • 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
  • Patent number: 10441359
    Abstract: A surgical laser system includes a laser generator, a laser probe, a stone analyzer, and a controller. The laser generator is configured to generate laser energy based on laser energy settings. The laser probe is configured to discharge the laser energy. The stone analyzer has an output relating to a characteristic of a targeted stone. The controller comprises at least one processor configured to determine the laser energy settings based on the output.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: October 15, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Wen-Jui Ray Chia, Rongwei Jason Xuan, Thomas C Hasenberg, Jian James Zhang, Steven Yihlih Peng, Danop Rajabhandharaks
  • Publication number: 20190159839
    Abstract: A laser fiber for use in performing a medical laser treatment includes an optical fiber and a fiber tip. The optical fiber includes a terminating end surface at a distal end. The fiber tip is positioned at the distal end of the optical fiber and includes a transmissive portion and a spacer portion. Laser energy discharged from the terminating end surface of the optical fiber is transmitted through the transmissive portion. The spacer portion defines a distal terminating end of the fiber tip that is spaced a predetermined distance from the terminating end surface of the optical fiber. The predetermined distance is set for shock wave generation for calculus destruction at the distal terminating end of the fiber tip.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Jian James Zhang, Rongwei Jason XUAN, Danop RAJABHANDHARAKS
  • Publication number: 20190151022
    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: January 18, 2019
    Publication date: May 23, 2019
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Rongwei Jason Xuan, Jian James Zhang, David N. Horn, Xirong Yang, Thomas Hasenberg
  • Publication number: 20190083176
    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: November 9, 2018
    Publication date: March 21, 2019
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Hui Wang, Wen-Jui Ray CHIA, Rongwei Jason XUAN, Jian James ZHANG, Aditi RAY, Honggang YU
  • Patent number: 10219863
    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: November 13, 2015
    Date of Patent: March 5, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Rongwei Jason Xuan, Jian James Zhang, David N. Horn, Xirong Yang, Thomas Hasenberg
  • Patent number: 10149717
    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: July 13, 2016
    Date of Patent: December 11, 2018
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Hui Wang, Wen-Jui Ray Chia, Rongwei Jason Xuan, Jian James Zhang, Aditi Ray, Honggang Yu
  • Publication number: 20180303549
    Abstract: A surgical laser system (100) includes a first laser source (140A), a second laser source (140B), a beam combiner (142) and a laser probe (108). The first laser source is configured to output a first laser pulse train (144, 104A) comprising first laser pulses (146). The second laser source is configured to output a second laser pulse train (148, 104B) comprising second laser pulses (150). The beam combiner is configured to combine the first and second laser pulse trains and output a combined laser pulse train (152, 104) comprising the first and second laser pulses. The laser probe is optically coupled to an output of the beam combiner and is configured to discharge the combined laser pulse train. In some embodiments, a surgical laser system includes a laser generator (102), a laser probe (108), a stone analyzer (170), and a controller (122). The laser generator is configured to generate laser energy (104) based on laser energy settings (126). The laser probe is configured to discharge the laser energy.
    Type: Application
    Filed: June 29, 2018
    Publication date: October 25, 2018
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Wen-Jui Ray Chia, Rongwei Jason Xuan, Thomas C. Hasenberg, Jian James Zhang, Steven Yihlih Peng, Danop Rajabhandharaks
  • Patent number: 10039604
    Abstract: A system may include a stone analyzer, a controller, a laser generator, and a beam combiner. The stone analyzer may be configured to generate an output relating to a natural or resonance frequency of a kidney or bladder stone. The controller may be configured to determine the natural or resonance frequency of the stone based on the output from the stone analyzer, and match a resultant pulse repetition rate with the natural or resonance frequency. The laser generator may be configured to generate at least two laser pulse trains, with each laser pulse train including laser pulses at a pulse repetition rate. The beam combiner may be configured to combine the at least two laser pulse trains into a combined laser pulse train including laser pulses at the resultant pulse repetition rate.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 7, 2018
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Wen-Jui Ray Chia, Rongwei Jason Xuan, Thomas C. Hasenberg, Jian James Zhang, Steven Yihlih Peng, Danop Rajabhandharaks
  • Publication number: 20180049806
    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: Application
    Filed: March 19, 2015
    Publication date: February 22, 2018
    Inventors: Honggang YU, Rongwei Jason XUAN, Jian James ZHANG
  • Publication number: 20170325890
    Abstract: A system may include a stone analyzer, a controller, a laser generator, and a beam combiner. The stone analyzer may be configured to generate an output relating to a natural or resonance frequency of a kidney or bladder stone. The controller may be configured to determine the natural or resonance frequency of the stone based on the output from the stone analyzer, and match a resultant pulse repetition rate with the natural or resonance frequency. The laser generator may be configured to generate at least two laser pulse trains, with each laser pulse train including laser pulses at a pulse repetition rate. The beam combiner may be configured to combine the at least two laser pulse trains into a combined laser pulse train including laser pulses at the resultant pulse repetition rate.
    Type: Application
    Filed: July 31, 2017
    Publication date: November 16, 2017
    Inventors: Wen-Jui Ray CHIA, Rongwei Jason Xuan, Thomas C. Hasenberg, Jian James Zhang, Steven Yihlih Peng, Danop Rajabhandharaks
  • Patent number: 9757199
    Abstract: A surgical laser system includes a first laser source, a second laser source, a beam combiner and a laser probe. The first laser source is configured to output a first laser pulse train comprising first laser pulses. The second laser source is configured to output a second laser pulse train comprising second laser pulses. The beam combiner is configured to combine the first and second laser pulse trains and output a combined laser pulse train comprising the first and second laser pulses. The laser probe is optically coupled to an output of the beam combiner and is configured to discharge the combined laser pulse train.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: September 12, 2017
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Wen-Jui Ray Chia, Rongwei Jason Xuan, Thomas C. Hasenberg, Jian James Zhang, Steven Yihlih Peng, Danop Rajabhandharaks
  • Publication number: 20170014187
    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: July 13, 2016
    Publication date: January 19, 2017
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Hui Wang, Wen-Jui Ray CHIA, Rongwei Jason XUAN, Jian James ZHANG, Aditi RAY, Honggang YU
  • Publication number: 20160166319
    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: December 10, 2015
    Publication date: June 16, 2016
    Inventors: Honggang Yu, Rongwei Jason Xuan, Jian James Zhang
  • Publication number: 20160135892
    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 13, 2015
    Publication date: May 19, 2016
    Inventors: Honggang Yu, Rongwei Jason Xuan, Jian James Zhang, David N. Horn, Xirong Yang, Thomas Hasenberg
  • Publication number: 20160081749
    Abstract: A laser fiber for use in performing a medical laser treatment includes an optical fiber and a fiber tip. The optical fiber includes a terminating end surface at a distal end. The fiber tip is positioned at the distal end of the optical fiber and includes a transmissive portion and a spacer portion. Laser energy discharged from the terminating end surface of the optical fiber is transmitted through the transmissive portion. The spacer portion defines a distal terminating end of the fiber tip that is spaced a predetermined distance from the terminating end surface of the optical fiber. The predetermined distance is set for shock wave generation for calculus destruction at the distal terminating end of the fiber tip.
    Type: Application
    Filed: September 24, 2015
    Publication date: March 24, 2016
    Inventors: Jian James Zhang, Rongwei Jason Xuan, Danop Rajabhandharaks
  • Publication number: 20150289937
    Abstract: A surgical laser system includes a first laser source, a second laser source, a beam combiner and a laser probe. The first laser source is configured to output a first laser pulse train comprising first laser pulses. The second laser source is configured to output a second laser pulse train comprising second laser pulses. The beam combiner is configured to combine the first and second laser pulse trains and output a combined laser pulse train comprising the first and second laser pulses. The laser probe is optically coupled to an output of the beam combiner and is configured to discharge the combined laser pulse train.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 15, 2015
    Inventors: Wen-Jui Ray Chia, Rongwei Jason Xuan, Thomas C. Hasenberg, Jian James Zhang, Steven Yihlih Peng, Danop Rajabhandharaks
  • Publication number: 20150272674
    Abstract: A laser lithotripsy method for fragmenting a kidney or bladder stone in a patient is provided. The method includes delivering a first laser energy having a first wavelength to the stone. The stone is heated in response to the delivery of the first laser energy to the stone. The method also includes delivering a second laser energy to the stone having a second wavelength that has a higher absorption by the stone or the fluid surrounding the stone than the first wavelength. The stone is fragmented in response to the delivery of the second laser energy to the stone.
    Type: Application
    Filed: November 6, 2013
    Publication date: October 1, 2015
    Applicant: AMS RESEARCH CORPORATION
    Inventors: Rongwei Jason Xuan, Thomas Charles Hasenberg, Jian James Zhang
  • Publication number: 20150230864
    Abstract: Embodiments of a surgical laser system comprise a laser source, a laser fiber, a photodetector and a controller. The laser source is configured to generate laser energy. The laser fiber is optically coupled to the laser source and is configured to discharge the laser energy generated by the laser source. The photodetector is configured to generate an output signal that is indicative of an intensity level of electromagnetic energy feedback that is produced in response to the discharge of the laser energy. The controller is configured to control the laser source based on the output signal. In embodiments of a method of controlling a surgical laser system, laser energy is generated using a laser source. The laser energy is discharged through a laser fiber. Electromagnetic energy feedback is produced in response to discharging the laser energy is delivered to a photodetector. An output signal from the photodetector is analyzed using a controller.
    Type: Application
    Filed: March 11, 2013
    Publication date: August 20, 2015
    Inventors: Rongwei Jason Xuan, Brian P. Watschke, Douglas L. Evans, Guangjian Wang, Wen-Jui Ray Chia, Nathan Brown, Thomas C. Hasenberg, Jian James Zhang, Hyun Wook Kang