Patents Assigned to Shockwave Medical, Inc.
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Patent number: 8956371Abstract: A system for breaking obstructions in body lumens includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and an arc generator including at least one electrode within the balloon that forms a mechanical shock wave within the balloon. The system further includes a power source that provides electrical energy to the arc generator.Type: GrantFiled: June 11, 2009Date of Patent: February 17, 2015Assignee: Shockwave Medical, Inc.Inventors: Daniel Hawkins, Clifton A. Alferness, John M. Adams
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Patent number: 8888788Abstract: 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: March 14, 2013Date of Patent: November 18, 2014Assignee: Shockwave Medical, Inc.Inventors: Doug Hakala, John M. Adams, Khoi T. Le, Show-Mean Steve Wu
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Publication number: 20140288570Abstract: A system includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and first and second electrodes within the balloon arranged to carry a voltage there-across including an initial high electrical voltage at an initial low current. The initial high electrical voltage causes an electrical arc to form across the first and second electrodes within the balloon. The electrical arc causes a gas bubble within the liquid, a high current to flow through the first and second electrodes, a decrease in the initial high electrical voltage, and a mechanical shock wave within the balloon. The system further includes a power source that provides the first and second electrodes with a drive voltage that creates the initial high electrical voltage at the initial current and that terminates the drive voltage in response to the decrease in the initial high electrical voltage.Type: ApplicationFiled: March 18, 2014Publication date: September 25, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventor: John M. ADAMS
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Publication number: 20140243847Abstract: 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: May 6, 2014Publication date: August 28, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: Doug HAKALA, John ADAMS, Randy HOLMBERG
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Publication number: 20140243820Abstract: 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 6, 2014Publication date: August 28, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: John ADAMS, Thomas G. GOFF, Doug HAKALA
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Publication number: 20140214061Abstract: A valvuloplasty system comprises a balloon adapted to be placed adjacent leaflets of a valve. The balloon is inflatable with a liquid. The system further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the valve. The shock wave generator is moveable within the balloon to vary shock wave impingement on the valve.Type: ApplicationFiled: March 28, 2014Publication date: July 31, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: John M. ADAMS, Thomas G. GOFF
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Publication number: 20140163592Abstract: A catheter, for use, for example, in valvuloplasty, includes an elongated body and an inflatable balloon carried by the elongated body. The balloon has an inner surface and an outer surface. The catheter further includes at least one shock wave source within the inflatable balloon and a follower arrangement that maintains the at least one shock wave source a substantially fixed distance from the inner surface of the balloon.Type: ApplicationFiled: August 1, 2013Publication date: June 12, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: Daniel HAWKINS, John M. ADAMS
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Patent number: 8747416Abstract: 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: October 23, 2013Date of Patent: June 10, 2014Assignee: Shockwave Medical, Inc.Inventors: Doug Hakala, John M. Adams, Khoi T. Le, Show-Mean Steve Wu
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Patent number: 8728091Abstract: 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: November 13, 2013Date of Patent: May 20, 2014Assignee: Shockwave Medical, Inc.Inventors: Doug Hakala, John M. Adams, Randy Holmberg
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Patent number: 8709075Abstract: A valvuloplasty system comprises a balloon adapted to be placed adjacent leaflets of a valve. The balloon is inflatable with a liquid. The system further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the valve. The shock wave generator is moveable within the balloon to vary shock wave impingement on the valve.Type: GrantFiled: October 4, 2013Date of Patent: April 29, 2014Assignee: Shockwave Medical, Inc.Inventors: John M. Adams, Thomas G. Goff
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Publication number: 20140074113Abstract: 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: September 13, 2012Publication date: March 13, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: Doug Hakala, John M. Adams, Randy Holmberg
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Publication number: 20140074111Abstract: 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: November 13, 2013Publication date: March 13, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: Doug HAKALA, John M. ADAMS, Randy HOLMBERG
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Publication number: 20140052147Abstract: 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: October 23, 2013Publication date: February 20, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: Doug HAKALA, John M. ADAMS, Khoi T. LE, Show-Mean Steve WU
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Publication number: 20140052145Abstract: A shock wave catheter system and method produces a shock wave with reduced energy. The system includes a catheter and a power source. The catheter has an elongated carrier and a balloon about the carrier in sealed relation thereto. The balloon is arranged to receive a fluid therein that inflates the balloon. The catheter further includes an arc generator including at least two electrodes within the balloon. The power source is coupled to the at least two electrodes and is configured to grow a bubble at one of the at least two electrodes and then thereafter to rapidly expand the bubble to form a shock wave within the balloon.Type: ApplicationFiled: February 26, 2013Publication date: February 20, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: John Adams, Randy Holmberg
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Publication number: 20140046353Abstract: Described herein are shock wave devices and methods for the treatment of calcified heart valves. One variation of a shock wave device includes three balloons that are each sized and shaped to fit within a concave portion of a valve cusp when inflated with a liquid and a shock wave source within each of the three balloons. Each balloon is separately and/or independently inflatable, and each shock wave source is separately and/or independently controllable. Methods of treating calcified heart valves using a shock wave device can include advancing a shock wave device having one or more balloons and a shock wave source in each of the balloons to contact a heart valve, inflating the one or more balloons with a liquid such that the balloon is seated within a concave portion of a valve cusp, and activating the shock wave source.Type: ApplicationFiled: August 8, 2013Publication date: February 13, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventor: John M. ADAMS
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Publication number: 20140046229Abstract: Disclosed herein are intravascular systems and methods for modulating the activation of neural activity using shock wave devices. Such systems and methods may be used to modulate the activity of the renal plexus and/or baroreceptors of the carotid sinus for the treatment of hypertension.Type: ApplicationFiled: August 6, 2013Publication date: February 13, 2014Applicant: Shockwave Medical, Inc.Inventors: Daniel HAWKINS, John M. ADAMS
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Publication number: 20140039513Abstract: 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: March 14, 2013Publication date: February 6, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: Doug HAKALA, John M. ADAMS, Khoi T. LE, Show-Mean Steve WU
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Publication number: 20140039514Abstract: A valvuloplasty system comprises a balloon adapted to be placed adjacent leaflets of a valve. The balloon is inflatable with a liquid. The system further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the valve. The shock wave generator is moveable within the balloon to vary shock wave impingement on the valve.Type: ApplicationFiled: October 4, 2013Publication date: February 6, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: John M. ADAMS, Thomas G. GOFF
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Publication number: 20140005576Abstract: 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: June 27, 2012Publication date: January 2, 2014Applicant: SHOCKWAVE MEDICAL, INC.Inventors: John Adams, Thomas G. Goff, Doug Hakala
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Patent number: 8574247Abstract: A valvuloplasty system includes a balloon adapted to be placed adjacent leaflets of a valve. The balloon is inflatable with a liquid. The system further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the valve. The shock wave generator is moveable within the balloon to vary shock wave impingement on the valve.Type: GrantFiled: November 8, 2011Date of Patent: November 5, 2013Assignee: Shockwave Medical, Inc.Inventors: John M. Adams, Thomas G. Goff