Patents by Inventor Douglas L. Evans
Douglas L. Evans 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).
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Patent number: 11938382Abstract: A method of making a golf club head includes the steps of providing a face of a club head, the face having a ball striking surface and a perimeter defining a border of the ball striking surface, providing a golf club head body that includes a crown, a sole, a toe, and a heel, attaching the face to a front portion of the club head body, and milling the ball striking surface and an edge portion of the face to cut a machined surface into the ball striking surface and the edge portion. The milled surface includes a plurality of first grooves located along the ball striking surface and defining a first depth, and a plurality of second grooves located adjacent the perimeter along the edge portion and defining a second depth. The first depth is different than the second depth.Type: GrantFiled: February 14, 2022Date of Patent: March 26, 2024Assignee: COBRA GOLF INCORPORATEDInventors: D. Clayton Evans, Cameron J. Day, Michael T. McDonnell, Ryan L. Roach, Douglas E. Roberts, Bryce Hobbs, Yi-Ching Liao
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Patent number: 11923470Abstract: A method includes forming an assembly of layers including an InP cap layer on an InGaAs absorption region layer, wherein the InGaAs layer is on an n-InP layer, and wherein an underlying substrate layer underlies the n-InP layer. The method includes removing a portion of the InP cap and n-InP layer by dry etching.Type: GrantFiled: October 24, 2022Date of Patent: March 5, 2024Assignee: Sensors Unlimited, Inc.Inventors: Wei Zhang, Douglas Stewart Malchow, Michael J. Evans, Paul L. Bereznycky, Sean T. Houlihan
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Patent number: 10952855Abstract: According to an aspect, an inflatable penile prosthesis includes an inflatable member, a reservoir configured to hold fluid, and a reversible flow pump assembly configured to facilitate a transfer of the fluid from the reservoir to the inflatable member when in an inflation mode, and facilitate the transfer of the fluid from the inflatable member to the reservoir when in a deflation mode. The reversible flow pump assembly includes a pump, an input check valve coupled to the pump, an output check valve coupled to the pump, and a reversing valve. The input check valve is configured to permit transfer of fluid into the pump. The output check valve is configured to permit transfer of fluid out of the pump. The reversing valve is configured to switch between the inflation mode and the deflation mode.Type: GrantFiled: March 17, 2017Date of Patent: March 23, 2021Assignee: Boston Scientific Scimed, Inc.Inventors: Douglas L. Evans, Karl A. Jagger, Mark E. DiLoreto
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Publication number: 20200197092Abstract: Embodiments of a surgical laser system comprise a laser source (102), a laser fiber (104), a photodetector (106) and a controller (108). The laser source is configured to generate laser energy (1 10). 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 (1 12) that is indicative of an intensity level of electromagnetic energy feedback (114) 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.Type: ApplicationFiled: March 4, 2020Publication date: June 25, 2020Applicant: Boston Scientific Scimed, Inc.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
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Patent number: 10617470Abstract: Embodiments of a surgical laser systems may include a laser source configured to generate a laser energy; a laser fiber optically coupled to the laser source to discharge laser energy; a photodetector configured to generate an output signal indicative of an intensity level of electromagnetic energy feedback produced in response to the discharge of the laser energy; and a controller configured to control the laser source based on the output signal. Embodiments of a method of controlling a surgical laser system also are disclosed, wherein laser energy is generated using a laser source and discharged through a laser fiber. Electromagnetic energy feedback produced in response to discharging the laser energy is delivered to a photodetector. An output signal from the photodetector is analyzed using a controller. The laser source is controlled in response to analyzing an output signal using the controller.Type: GrantFiled: March 11, 2013Date of Patent: April 14, 2020Assignee: Boston Scientific Scimed, Inc.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
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Publication number: 20190365468Abstract: An optical device including an optical fiber having a longitudinal axis and an optical fiber core with a distal end having a distal terminating end configured to discharge a first laser energy in a first direction and a second laser energy in a second direction. The optical device also includes a fiber cap having an interior cavity and an opening to the interior cavity, where the distal end of the optical fiber core is received within the interior cavity through the opening. A cladding is included on the distal end of the optical fiber core between the optical fiber core and the fiber cap.Type: ApplicationFiled: August 15, 2019Publication date: December 5, 2019Applicant: Boston Scientific Scimed, Inc.Inventors: Thomas Charles Hasenberg, Rongwei Jason Xuan, Brian P. Watschke, Douglas L. Evans, Guangjian Wang, Steven Yihlih Peng, Wen-Jui Ray Chia
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Patent number: 10105184Abstract: Embodiments of the invention are directed to a laser ablation system. In one embodiment, the laser ablation system comprises a shaft, a balloon, a laser fiber and a viewing fiber. The shaft has a proximal end and a distal end. The balloon is attached to the distal end of the shaft, a portion of which is within the balloon. The laser fiber has a distal end comprising a light dispenser that is configured to deliver laser light through the balloon. The viewing fiber is configured to image an interior balloon. In accordance with another embodiment, the laser ablation system comprises a shaft, a balloon and a laser fiber. The shaft has a proximal end and a distal end. The balloon is attached to the distal end of the shaft, which is within the balloon. The balloon includes an inflated state, in which the balloon is shaped to conform to a cavity of a patient. The laser fiber has a distal end comprising light dispenser that is configured to deliver laser light through the balloon.Type: GrantFiled: July 13, 2016Date of Patent: October 23, 2018Assignee: Boston Scientific Scimed, Inc.Inventors: Michael T. Beck, Edouard A. Koullick, Robert E. Lund, Douglas L. Evans, Samuel L. Will, Stuart F. Watson, Hyun Wook Kang, Justin M. Crank, Somany Dy, Micah D. Thorson
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Patent number: 9968403Abstract: An optical device including an optical fiber having a longitudinal axis and an optical fiber core with a distal end having a distal terminating end configured to discharge a first laser energy in a first direction and a second laser energy in a second direction. The optical device also includes a fiber cap having an interior cavity and an opening to the interior cavity, where the distal end of the optical fiber core is received within the interior cavity through the opening. A cladding is included on the distal end of the optical fiber core between the optical fiber core and the fiber cap.Type: GrantFiled: October 16, 2013Date of Patent: May 15, 2018Assignee: Boston Scientific Scimed, Inc.Inventors: Thomas Charles Hasenberg, Steven Yihlih Peng, Brian P. Watschke, Douglas L. Evans, Guangjian Wang, Rongwei Jason Xuan, Wen-Jui Ray Chia
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Patent number: 9882338Abstract: A laser system includes a laser element, a pump source configured to input light to the laser element, a first cooling circuit and a second cooling circuit. The first cooling circuit includes a first pump configured to drive a first flow of cooling liquid through a first fluid pathway, a first primary heat exchanger configured to cool the first flow of cooling liquid, and a laser element heat exchanger configured to remove heat from the laser element using the first flow of cooling liquid. The second cooling circuit includes a second pump configured to drive a flow of cooling liquid through a second fluid pathway, a second primary heat exchanger configured to cool the second flow of cooling liquid, and a pump source heat exchanger configured to remove heat from the pump source using the first and second flows of cooling liquid.Type: GrantFiled: May 13, 2016Date of Patent: January 30, 2018Assignee: Boston Scientific Scimed, Inc.Inventors: Rongwei Jason Xuan, Douglas L. Evans
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Publication number: 20170273792Abstract: According to an aspect, an inflatable penile prosthesis includes an inflatable member, a reservoir configured to hold fluid, and a reversible flow pump assembly configured to facilitate a transfer of the fluid from the reservoir to the inflatable member when in an inflation mode, and facilitate the transfer of the fluid from the inflatable member to the reservoir when in a deflation mode. The reversible flow pump assembly includes a pump, an input check valve coupled to the pump, an output check valve coupled to the pump, and a reversing valve. The input check valve is configured to permit transfer of fluid into the pump. The output check valve is configured to permit transfer of fluid out of the pump. The reversing valve is configured to switch between the inflation mode and the deflation mode.Type: ApplicationFiled: March 17, 2017Publication date: September 28, 2017Inventors: Douglas L. Evans, Karl A. Jagger, Mark E. DiLoreto
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Publication number: 20170007326Abstract: Embodiments of the invention are directed to a laser ablation system. In one embodiment, the laser ablation system comprises a shaft, a balloon, a laser fiber and a viewing fiber. The shaft has a proximal end and a distal end. The balloon is attached to the distal end of the shaft, a portion of which is within the balloon. The laser fiber has a distal end comprising a light dispenser that is configured to deliver laser light through the balloon. The viewing fiber is configured to image an interior balloon. In accordance with another embodiment, the laser ablation system comprises a shaft, a balloon and a laser fiber. The shaft has a proximal end and a distal end. The balloon is attached to the distal end of the shaft, which is within the balloon. The balloon includes an inflated state, in which the balloon is shaped to conform to a cavity of a patient. The laser fiber has a distal end comprising light dispenser that is configured to deliver laser light through the balloon.Type: ApplicationFiled: July 13, 2016Publication date: January 12, 2017Applicant: Boston Scientific Scimed, Inc.Inventors: Michael T. BECK, Edouard A. KOULLICK, Robert E. LUND, Douglas L. EVANS, Samuel L. WILL, Stuart F. WATSON, Hyun Wook KANG, Justin M. CRANK, Somany DY, Micah D. THORSON
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Patent number: 9433467Abstract: Embodiments of a laser ablation system include a shaft, a balloon and a laser fiber. The shaft has a proximal end and a distal end. The balloon is attached to the distal end of the shaft, a portion of which is disposed within the balloon. A light dispenser at a distal end of the laser fiber is configured to deliver laser light through the balloon. A central axis of the balloon is aligned with a longitudinal axis of the shaft. The balloon has a variable transparency such that the transmission of laser light through the balloon is non-uniform along the central axis. Accordingly, an energy of laser light transmitted from the light dispenser through the balloon to the targeted tissue varies due to the variable transparency of the balloon.Type: GrantFiled: October 23, 2014Date of Patent: September 6, 2016Assignee: Boston Scientific Scimed, Inc.Inventors: Michael T Beck, Edouard A. Koulick, Robert E. Lund, Douglas L. Evans, Samuel L. Will, Stuart F. Watson, Hyun Wook Kang, Justin M. Crank, Somany Dy, Micah D. Thorson
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Publication number: 20160254636Abstract: A laser system includes a laser element, a pump source configured to input light to the laser element, a first cooling circuit and a second cooling circuit. The first cooling circuit includes a first pump configured to drive a first flow of cooling liquid through a first fluid pathway, a first primary heat exchanger configured to cool the first flow of cooling liquid, and a laser element heat exchanger configured to remove heat from the laser element using the first flow of cooling liquid. The second cooling circuit includes a second pump configured to drive a flow of cooling liquid through a second fluid pathway, a second primary heat exchanger configured to cool the second flow of cooling liquid, and a pump source heat exchanger configured to remove heat from the pump source using the first and second flows of cooling liquid.Type: ApplicationFiled: May 13, 2016Publication date: September 1, 2016Applicant: Boston Scientific Scimed, Inc.Inventors: Rongwei Jason Xuan, Douglas L. Evans
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Patent number: 9362705Abstract: A laser system includes a laser element, a pump source configured to input light to the laser element, a first heat exchanger, a pump source heat exchanger, a laser element heat exchanger, and a pump. The first heat exchanger is configured to cool a first flow of cooling liquid. The pump source heat exchanger is configured to remove heat from the pump source using the first flow of cooling liquid. The laser element heat exchanger is configured to remove heat from the laser element using a second flow of cooling liquid. The pump is configured to drive the first and second flows of cooling liquid.Type: GrantFiled: March 13, 2015Date of Patent: June 7, 2016Assignee: Boston Scientific Scimed, Inc.Inventors: Rongwei Jason Xuan, Douglas L. Evans
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Publication number: 20150272676Abstract: An optical device including an optical fiber having a longitudinal axis and an optical fiber core with a distal end having a distal terminating end configured to discharge a first laser energy in a first direction and a second laser energy in a second direction. The optical device also includes a fiber cap having an interior cavity and an opening to the interior cavity, where the distal end of the optical fiber core is received within the interior cavity through the opening. A cladding is included on the distal end of the optical fiber core between the optical fiber core and the fiber cap.Type: ApplicationFiled: October 16, 2013Publication date: October 1, 2015Inventors: Thomas Charles Hasenberg, Steven Yihlih Peng, Brian P. Watschke, Douglas L. Evans, Guangjian Wang, Rongwei Jason Xuan, Wen-Jui Ray Chia
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Publication number: 20150230864Abstract: 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: ApplicationFiled: March 11, 2013Publication date: August 20, 2015Inventors: 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
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Publication number: 20150188279Abstract: A laser system includes a laser element, a pump source configured to input light to the laser element, a first heat exchanger, a pump source heat exchanger, a laser element heat exchanger, and a pump. The first heat exchanger is configured to cool a first flow of cooling liquid. The pump source heat exchanger is configured to remove heat from the pump source using the first flow of cooling liquid. The laser element heat exchanger is configured to remove heat from the laser element using a second flow of cooling liquid. The pump is configured to drive the first and second flows of cooling liquid.Type: ApplicationFiled: March 13, 2015Publication date: July 2, 2015Inventors: Rongwei Jason Xuan, Douglas L. Evans
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Patent number: 9008136Abstract: A laser system includes a laser element, a pump source configured to input light to the laser element, a first cooling circuit and a second cooling circuit. The first cooling circuit includes a first pump configured to drive a first flow of cooling liquid through a first fluid pathway, a first primary heat exchanger configured to cool the first flow of cooling liquid, and a laser element heat exchanger configured to remove heat from the laser element using the first flow of cooling liquid. The second cooling circuit includes a second pump configured to drive a flow of cooling liquid through a second fluid pathway, a second primary heat exchanger configured to cool the second flow of cooling liquid, and a pump source heat exchanger configured to remove heat from the pump source using the first and second flows of cooling liquid.Type: GrantFiled: January 25, 2013Date of Patent: April 14, 2015Assignee: AMS Research CorporationInventors: Rongwei Jason Xuan, Douglas L. Evans
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Publication number: 20150045779Abstract: Embodiments of a laser ablation system include a shaft, a balloon and a laser fiber. The shaft has a proximal end and a distal end. The balloon is attached to the distal end of the shaft, a portion of which is disposed within the balloon. A light dispenser at a distal end of the laser fiber deliver laser light through the balloon. A central axis of the balloon is aligned with a longitudinal axis of the shaft. The balloon has a variable transparency such that the transmission of laser light through the balloon is non-uniform along the central axis. Accordingly, an energy of laser light transmitted from the light dispenser through the balloon to the targeted tissue varies due to the variable transparency of the balloon.Type: ApplicationFiled: October 23, 2014Publication date: February 12, 2015Inventors: Michael T. Beck, Edouard A. Koulick, Robert E. Lund, Douglas L. Evans, Samuel L. Will, Stuart F. Watson, Hyun Wook Kang, Justin M. Crank, Somany Dy, Micah D. Thorson
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Patent number: 8936592Abstract: Embodiments of the invention are directed to a laser ablation system. In one embodiment, the laser ablation system comprises a shaft, a balloon, a laser fiber and a viewing fiber. The shaft has a proximal end and a distal end. The balloon is attached to the distal end of the shaft, a portion of which is within the balloon. The laser fiber has a distal end comprising a light dispenser that is configured to deliver laser light through the balloon. The viewing fiber is configured to image an interior balloon. In accordance with another embodiment, the laser ablation system comprises a shaft, a balloon and a laser fiber. The shaft has a proximal end and a distal end. The balloon is attached to the distal end of the shaft, which is within the balloon. The balloon includes an inflated state, in which the balloon is shaped to conform to a cavity of a patient. The laser fiber has a distal end comprising light dispenser that is configured to deliver laser light through the balloon.Type: GrantFiled: June 3, 2011Date of Patent: January 20, 2015Assignee: AMS Research CorporationInventors: Michael T. Beck, Edouard A. Koullick, Robert E. Lund, Douglas L. Evans, Samuel L. Will, Stuart F. Watson, Hyun Wook Kang, Justin M. Crank, Somany Dy, Micah D. Thorson