Patents by Inventor Doug Hakala
Doug Hakala 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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Publication number: 20230329731Abstract: A system that breaks calcium in a liquid includes a catheter including first and second electrodes arranged to receive there-across a high electrical voltage at an initial low current. The high electrical voltage causes an electrical arc to form across the electrodes creating a gas bubble within the liquid, a high current to flow through the electrodes, and a mechanical shock wave. A power source provides the electrodes with the high electrical voltage at the initial current and terminates the high electrical voltage in response to the high current flow through the electrodes.Type: ApplicationFiled: February 3, 2023Publication date: October 19, 2023Applicant: Shockwave Medical, Inc.Inventors: Doug HAKALA, John M. ADAMS, Randy HOLMBERG
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Publication number: 20230310073Abstract: An apparatus includes a balloon adapted to be placed adjacent a calcified region of a body. The balloon is inflatable with a liquid. The apparatus further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the calcified region adjacent the balloon. The shock wave generator includes a plurality of shock wave sources distributed within the balloon.Type: ApplicationFiled: May 23, 2023Publication date: October 5, 2023Applicant: Shockwave Medical, Inc.Inventors: John M. ADAMS, Thomas G. GOFF, Doug HAKALA
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Patent number: 11696799Abstract: An apparatus includes a balloon adapted to be placed adjacent a calcified region of a body. The balloon is inflatable with a liquid. The apparatus further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the calcified region adjacent the balloon. The shock wave generator includes a plurality of shock wave sources distributed within the balloon.Type: GrantFiled: April 23, 2020Date of Patent: July 11, 2023Assignee: SHOCKWAVE MEDICAL, INC.Inventors: John M. Adams, Thomas G. Goff, Doug Hakala
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Patent number: 11596424Abstract: A system that breaks calcium in a liquid includes a catheter including first and second electrodes arranged to receive there-across a high electrical voltage at an initial low current. The high electrical voltage causes an electrical arc to form across the electrodes creating a gas bubble within the liquid, a high current to flow through the electrodes, and a mechanical shock wave. A power source provides the electrodes with the high electrical voltage at the initial current and terminates the high electrical voltage in response to the high current flow through the electrodes.Type: GrantFiled: March 10, 2021Date of Patent: March 7, 2023Assignee: SHOCKWAVE MEDICAL, INC.Inventors: Doug Hakala, John M. Adams, Randy Holmberg
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Publication number: 20220015785Abstract: Described herein are low-profile electrodes for use with an angioplasty shockwave catheter. A low-profile electrode assembly may have an inner electrode, an insulating layer disposed over the inner electrode such that an opening in the insulating layer is aligned with the inner electrode, and an outer electrode sheath disposed over the insulating layer such that an opening in the outer electrode sheath is coaxially aligned with the opening in the insulating layer. This layered configuration allows for the generation of shockwaves that propagate outward from the side of the catheter. In some variations, the electrode assembly has a second inner electrode, and the insulating layer and outer electrode may each have a second opening that are coaxially aligned with the second inner electrode. An angioplasty shockwave catheter may have a plurality of such low-profile electrode assemblies along its length to break up calcified plaques along a length of a vessel.Type: ApplicationFiled: June 29, 2021Publication date: January 20, 2022Inventors: Doug HAKALA, John M. ADAMS, Khoi T. LE, Show-Mean Steve WU
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Publication number: 20210290259Abstract: A system that breaks calcium in a liquid includes a catheter including first and second electrodes arranged to receive there-across a high electrical voltage at an initial low current. The high electrical voltage causes an electrical arc to form across the electrodes creating a gas bubble within the liquid, a high current to flow through the electrodes, and a mechanical shock wave. A power source provides the electrodes with the high electrical voltage at the initial current and terminates the high electrical voltage in response to the high current flow through the electrodes.Type: ApplicationFiled: March 10, 2021Publication date: September 23, 2021Inventors: Doug HAKALA, John M. ADAMS, Randy HOLMBERG
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Patent number: 11076874Abstract: Described herein are low-profile electrodes for use with an angioplasty shockwave catheter. A low-profile electrode assembly may have an inner electrode, an insulating layer disposed over the inner electrode such that an opening in the insulating layer is aligned with the inner electrode, and an outer electrode sheath disposed over the insulating layer such that an opening in the outer electrode sheath is coaxially aligned with the opening in the insulating layer. This layered configuration allows for the generation of shockwaves that propagate outward from the side of the catheter. In some variations, the electrode assembly has a second inner electrode, and the insulating layer and outer electrode may each have a second opening that are coaxially aligned with the second inner electrode. An angioplasty shockwave catheter may have a plurality of such low-profile electrode assemblies along its length to break up calcified plaques along a length of a vessel.Type: GrantFiled: January 4, 2019Date of Patent: August 3, 2021Assignee: Shockwave Medical, Inc.Inventors: Doug Hakala, John M. Adams, Khoi T. Le, Show-Mean Steve Wu
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Patent number: 10973538Abstract: A system that breaks calcium in a liquid includes a catheter including first and second electrodes arranged to receive there-across a high electrical voltage at an initial low current. The high electrical voltage causes an electrical arc to form across the electrodes creating a gas bubble within the liquid, a high current to flow through the electrodes, and a mechanical shock wave. A power source provides the electrodes with the high electrical voltage at the initial current and terminates the high electrical voltage in response to the high current flow through the electrodes.Type: GrantFiled: December 17, 2018Date of Patent: April 13, 2021Assignee: Shockwave Medical, Inc.Inventors: Doug Hakala, John M. Adams, Randy Holmberg
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Publication number: 20200383724Abstract: An apparatus includes a balloon adapted to be placed adjacent a calcified region of a body. The balloon is inflatable with a liquid. The apparatus further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the calcified region adjacent the balloon. The shock wave generator includes a plurality of shock wave sources distributed within the balloon.Type: ApplicationFiled: April 23, 2020Publication date: December 10, 2020Inventors: John M. ADAMS, Thomas G. GOFF, Doug HAKALA
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Patent number: 10682178Abstract: An apparatus includes a balloon adapted to be placed adjacent a calcified region of a body. The balloon is inflatable with a liquid. The apparatus further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the calcified region adjacent the balloon. The shock wave generator includes a plurality of shock wave sources distributed within the balloon.Type: GrantFiled: May 14, 2018Date of Patent: June 16, 2020Assignee: Shockwave Medical, Inc.Inventors: John M. Adams, Thomas G. Goff, Doug Hakala
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Publication number: 20200022716Abstract: A method of delivering shock waves to treat calcified lesions includes advancing an angioplasty balloon mounted on a carrier, to reach the calcified lesion. A pair of electrodes is located within the balloon. The balloon is filled with a conductive fluid. A series of high voltage pulses are supplied to the electrodes. Each voltage pulse has sufficient energy to generate an arc in the fluid and allows current to flow across the pair of electrodes to produce a shock wave. During each pulse, the current flowing across the pair of electrodes is monitored. When the sensed current reaches a predetermined value, that voltage pulse is terminated. The predetermined value is selected to be high enough to ensure the creation of the arc while compensating for the variable dwell time between initial application of a given voltage pulse and creation of the arc.Type: ApplicationFiled: August 28, 2019Publication date: January 23, 2020Inventors: Doug HAKALA, John M. ADAMS, Randy HOLMBERG
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Patent number: 10517621Abstract: A method of delivering shock waves to treat calcified lesions includes advancing an angioplasty balloon mounted on a carrier, to reach the calcified lesion. A pair of electrodes is located within the balloon. The balloon is filled with a conductive fluid. A series of high voltage pulses are supplied to the electrodes. Each voltage pulse has sufficient energy to generate an arc in the fluid and allows current to flow across the pair of electrodes to produce a shock wave. During each pulse, the current flowing across the pair of electrodes is monitored. When the sensed current reaches a predetermined value, that voltage pulse is terminated. The predetermined value is selected to be high enough to ensure the creation of the arc while compensating for the variable dwell time between initial application of a given voltage pulse and creation of the arc.Type: GrantFiled: August 28, 2019Date of Patent: December 31, 2019Assignee: SHOCKWAVE MEDICAL, INC.Inventors: Doug Hakala, John M. Adams, Randy Holmberg
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Publication number: 20190269426Abstract: Described herein are low-profile electrodes for use with an angioplasty shockwave catheter. A low-profile electrode assembly may have an inner electrode, an insulating layer disposed over the inner electrode such that an opening in the insulating layer is aligned with the inner electrode, and an outer electrode sheath disposed over the insulating layer such that an opening in the outer electrode sheath is coaxially aligned with the opening in the insulating layer. This layered configuration allows for the generation of shockwaves that propagate outward from the side of the catheter. In some variations, the electrode assembly has a second inner electrode, and the insulating layer and outer electrode may each have a second opening that are coaxially aligned with the second inner electrode. An angioplasty shockwave catheter may have a plurality of such low-profile electrode assemblies along its length to break up calcified plaques along a length of a vessel.Type: ApplicationFiled: January 4, 2019Publication date: September 5, 2019Applicant: Shockwave Medical, Inc.Inventors: Doug HAKALA, John M. M. ADAMS, Khoi T. LE, Show-Mean Steve WU
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Publication number: 20190254692Abstract: A system that breaks calcium in a liquid includes a catheter including first and second electrodes arranged to receive there-across a high electrical voltage at an initial low current. The high electrical voltage causes an electrical arc to form across the electrodes creating a gas bubble within the liquid, a high current to flow through the electrodes, and a mechanical shock wave. A power source provides the electrodes with the high electrical voltage at the initial current and terminates the high electrical voltage in response to the high current flow through the electrodes.Type: ApplicationFiled: December 17, 2018Publication date: August 22, 2019Applicant: Shockwave Medical, Inc.Inventors: Doug HAKALA, John M. M. ADAMS, Randy HOLMBERG
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Patent number: 10206698Abstract: Described herein are low-profile electrodes for use with an angioplasty shockwave catheter. A low-profile electrode assembly may have an inner electrode, an insulating layer disposed over the inner electrode such that an opening in the insulating layer is aligned with the inner electrode, and an outer electrode sheath disposed over the insulating layer such that an opening in the outer electrode sheath is coaxially aligned with the opening in the insulating layer. This layered configuration allows for the generation of shockwaves that propagate outward from the side of the catheter. In some variations, the electrode assembly has a second inner electrode, and the insulating layer and outer electrode may each have a second opening that are coaxially aligned with the second inner electrode. An angioplasty shockwave catheter may have a plurality of such low-profile electrode assemblies along its length to break up calcified plaques along a length of a vessel.Type: GrantFiled: July 27, 2016Date of Patent: February 19, 2019Assignee: SHOCKWAVE MEDICAL, INC.Inventors: Doug Hakala, John M. Adams, Khoi T. Le, Show-Mean Steve Wu
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Patent number: 10159505Abstract: A system that breaks calcium in a liquid includes a catheter including first and second electrodes arranged to receive there-across a high electrical voltage at an initial low current. The high electrical voltage causes an electrical arc to form across the electrodes creating a gas bubble within the liquid, a high current to flow through the electrodes, and a mechanical shock wave. A power source provides the electrodes with the high electrical voltage at the initial current and terminates the high electrical voltage in response to the high current flow through the electrodes.Type: GrantFiled: March 9, 2016Date of Patent: December 25, 2018Assignee: SHOCKWAVE MEDICAL, INC.Inventors: Doug Hakala, John M. Adams, Randy Holmberg
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Publication number: 20180256250Abstract: An apparatus includes a balloon adapted to be placed adjacent a calcified region of a body. The balloon is inflatable with a liquid. The apparatus further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the calcified region adjacent the balloon. The shock wave generator includes a plurality of shock wave sources distributed within the balloon.Type: ApplicationFiled: May 14, 2018Publication date: September 13, 2018Applicant: Shockwave Medical, Inc.Inventors: John M. ADAMS, Thomas G. GOFF, Doug HAKALA
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Patent number: 9993292Abstract: An apparatus includes a balloon adapted to be placed adjacent a calcified region of a body. The balloon is inflatable with a liquid. The apparatus further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the calcified region adjacent the balloon. The shock wave generator includes a plurality of shock wave sources distributed within the balloon.Type: GrantFiled: March 30, 2017Date of Patent: June 12, 2018Assignee: SHOCKWAVE MEDICAL, INC.Inventors: John Adams, Thomas G. Goff, Doug Hakala
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Publication number: 20170258523Abstract: An apparatus includes a balloon adapted to be placed adjacent a calcified region of a body. The balloon is inflatable with a liquid. The apparatus further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the calcified region adjacent the balloon. The shock wave generator includes a plurality of shock wave sources distributed within the balloon.Type: ApplicationFiled: March 30, 2017Publication date: September 14, 2017Inventors: John ADAMS, Thomas G. GOFF, Doug HAKALA
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Patent number: 9642673Abstract: An apparatus includes a balloon adapted to be placed adjacent a calcified region of a body. The balloon is inflatable with a liquid. The apparatus further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the calcified region adjacent the balloon. The shock wave generator includes a plurality of shock wave sources distributed within the balloon.Type: GrantFiled: June 27, 2012Date of Patent: May 9, 2017Assignee: SHOCKWAVE MEDICAL, INC.Inventors: John Adams, Thomas G. Goff, Doug Hakala