Patents by Inventor Michael F. Wei
Michael F. Wei 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: 20230181248Abstract: Systems and methods for separating native heart valve leaflets attached together by a fixation device. Systems including an elongate shaft having a proximal end portion, a distal end portion and a longitudinal axis extending therebetween, the elongate shaft configured for transvascular delivery of the distal end portion to a native heart valve. At least one arm extending from the distal end portion, and a cutter disposed along at least one of the distal end portion and the at least one arm. The at least one arm is configured to extend through an orifice defined between native heart valve leaflets attached together by a fixation device to position the cutter against one of the native heart valve leaflets adjacent the fixation device, the cutter configured to cut through native heart valve leaflet tissue.Type: ApplicationFiled: December 7, 2022Publication date: June 15, 2023Applicant: EVALVE, INC.Inventor: Michael F. Wei
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Publication number: 20230131595Abstract: Medical delivery system for accessing a tricuspid valve via an inferior vena cava, including an outer guide catheter, an inner guide catheter and an interventional catheter. The first deflection portion of the outer guide catheter is steerable to define a first outer-guide-catheter curve and the second deflection portion of the outer guide catheter is steerable to define a second outer-guide-catheter curve and the first deflection portion of the inner guide catheter is steerable to define a first inner-guide-catheter curve.Type: ApplicationFiled: October 24, 2022Publication date: April 27, 2023Applicant: EVALVE, INC.Inventors: Dylan T. Van Hoven, Michael F. Wei
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Publication number: 20230009891Abstract: Systems and methods for augmenting image data during heart valve repair procedures, such as transcatheter mitral valve repair (TMVr) or transcatheter tricuspid valve repair (TTVr). Image data may be obtained from an imaging device, and may be output to a display with one or more reference markers overlaid on the image data to simplify the visual data. Image data may be augmented or replaced with the reference markers. In some cases, reference markers may provide information about objects that are difficult to see in the image data. In other cases, the reference markers may provide clinical recommendations or feedback.Type: ApplicationFiled: July 6, 2022Publication date: January 12, 2023Applicant: Evalve, Inc.Inventors: Michael F. Wei, Chad J. Abunassar
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Patent number: 11534303Abstract: Medical delivery system for accessing a tricuspid valve via an inferior vena cava, including an outer guide catheter, an inner guide catheter and an interventional catheter. The first deflection portion of the outer guide catheter is steerable to define a first outer-guide-catheter curve and the second deflection portion of the outer guide catheter is steerable to define a second outer-guide-catheter curve and the first deflection portion of the inner guide catheter is steerable to define a first inner-guide-catheter curve.Type: GrantFiled: October 9, 2020Date of Patent: December 27, 2022Assignee: EVALVE, INC.Inventors: Dylan T. Van Hoven, Michael F. Wei
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Publication number: 20220361907Abstract: Systems and methods for separating native heart valve leaflets attached together by a fixation device. The system has elongate shaft including a proximal end portion, a distal end portion and a longitudinal axis extending therebetween. The elongate shaft is configured for transvascular delivery of the distal end portion to a native heart valve. A balloon is disposed at the distal end portion of the elongate shaft, and the balloon is inflatable from a collapsed condition to an inflated condition. At least one snare lumen extends along at least a portion of the balloon, the at least one snare lumen having an exit port defined therein. A snare is deployable through the exit port from a delivery position within the at least one snare lumen to an extended position extending beyond the exit port. The snare in the extended position is configured to capture the fixation device.Type: ApplicationFiled: May 13, 2022Publication date: November 17, 2022Applicant: EVALVE, INC.Inventors: Philip Osterbauer, Tracee Eidenschink, Ted Dale, Richard Childs, Michael F. Wei
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Patent number: 11491009Abstract: The present disclosure relates to repair devices for repair of regurgitant mitral valves. A repair device includes a body having a perimeter defining an upper side and a lower side. An annular groove is disposed along a posterior section of the perimeter of the device and is configured to receive posterior rim tissue of a mitral valve annulus. First and second anchors extend from the body in an anterior direction. The first and second anchors are configured to engage with respective commissures of the mitral valve to assist in securing the repair device in position. The repair device is structured to minimize or eliminate imparting or transmitting radially outward forces along an anterior section so as to avoid imparting forces to the septum to avoid hindering the function of the aortic valve and the left ventricular outflow tract.Type: GrantFiled: July 7, 2021Date of Patent: November 8, 2022Assignee: EVALVE, INC.Inventors: Michael F. Wei, Chad J. Abunassar
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Publication number: 20220168036Abstract: An implant removal device having an elongate body having a proximal end and a distal end, the elongate body being resiliently flexible and configured to transmit torque from the proximal end to the distal end with a predetermined turning ratio, and a capture structure extending distally from the distal end and having a capture region, the capture structure being configured to selectively center a deployed implant in relation to a longitudinal axis of the elongate body and the capture region to aid with capture and subsequent removal.Type: ApplicationFiled: November 22, 2021Publication date: June 2, 2022Inventor: Michael F. Wei
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Publication number: 20220104819Abstract: The invention provides improved devices, systems, and methods for tissue approximation and repair at treatment sites. The invention provides devices, systems, and methods that may more successfully approximate and repair tissue by improving the capture of tissue into the devices. The invention may be a one-way mechanism that allows tissue to enter the mechanism but not easily exit, such as a leaf-spring, a protrusion, a pivoting arm and one or more frictional elements.Type: ApplicationFiled: December 17, 2021Publication date: April 7, 2022Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventor: Michael F. Wei
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Patent number: 11229435Abstract: The invention provides improved devices, systems, and methods for tissue approximation and repair at treatment sites. The invention provides devices, systems, and methods that may more successfully approximate and repair tissue by improving the capture of tissue into the devices. The invention may be a one-way mechanism that allows tissue to enter the mechanism but not easily exit, such as a leaf-spring, a protrusion, a pivoting arm and one or more frictional elements.Type: GrantFiled: January 7, 2019Date of Patent: January 25, 2022Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventor: Michael F. Wei
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Publication number: 20210330454Abstract: The present disclosure relates to repair devices for repair of regurgitant mitral valves. A repair device includes a body having a perimeter defining an upper side and a lower side. An annular groove is disposed along a posterior section of the perimeter of the device and is configured to receive posterior rim tissue of a mitral valve annulus. First and second anchors extend from the body in an anterior direction. The first and second anchors are configured to engage with respective commissures of the mitral valve to assist in securing the repair device in position. The repair device is structured to minimize or eliminate imparting or transmitting radially outward forces along an anterior section so as to avoid imparting forces to the septum to avoid hindering the function of the aortic valve and the left ventricular outflow tract.Type: ApplicationFiled: July 7, 2021Publication date: October 28, 2021Applicant: EVALVE, INC.Inventors: Michael F. Wei, Chad J. Abunassar
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Publication number: 20210315695Abstract: Medical delivery system for accessing a tricuspid valve via an inferior vena cava, including an outer guide catheter, an inner guide catheter and an interventional catheter. The first deflection portion of the outer guide catheter is steerable to define a first outer-guide-catheter curve and the second deflection portion of the outer guide catheter is steerable to define a second outer-guide-catheter curve and the first deflection portion of the inner guide catheter is steerable to define a first inner-guide-catheter curve.Type: ApplicationFiled: October 9, 2020Publication date: October 14, 2021Applicant: EVALVE, INC.Inventors: Dylan T. Van Hoven, Michael F. Wei
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Patent number: 11109863Abstract: The invention provides improved devices, systems, and methods for tissue approximation and repair at treatment sites. The invention provides devices, systems, and methods that may more successfully approximate and repair tissue by improving the capture of tissue into the devices. The invention may be a one-way mechanism that allows tissue to enter the mechanism but not easily exit, such as a leaf-spring, a protrusion, a pivoting arm and one or more frictional elements.Type: GrantFiled: January 21, 2020Date of Patent: September 7, 2021Assignee: ABBOTT CARDIOVASCULAR SYSTEMS, INC.Inventor: Michael F. Wei
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Publication number: 20210196454Abstract: The present disclosure relates to repair devices for repair of regurgitant mitral valves. A repair device includes a body having a perimeter defining an upper side and a lower side. An annular groove is disposed along a posterior section of the perimeter of the device and is configured to receive posterior rim tissue of a mitral valve annulus. First and second anchors extend from the body in an anterior direction. The first and second anchors are configured to engage with respective commissures of the mitral valve to assist in securing the repair device in position. The repair device is structured to minimize or eliminate imparting or transmitting radially outward forces along an anterior section so as to avoid imparting forces to the septum to avoid hindering the function of the aortic valve and the left ventricular outflow tract.Type: ApplicationFiled: March 12, 2021Publication date: July 1, 2021Applicant: EVALVE, INC.Inventors: Michael F. Wei, Chad J. Abunassar
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Patent number: 11006956Abstract: The invention provides improved devices, systems, and methods for tissue approximation and repair at treatment sites. The invention provides devices, systems, and methods that may more successfully approximate and repair tissue by improving the capture of tissue into the devices. The invention may be a one-way mechanism that allows tissue to enter the mechanism but not easily exit, such as a leaf-spring, a protrusion, a pivoting arm and one or more frictional elements.Type: GrantFiled: March 9, 2020Date of Patent: May 18, 2021Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventor: Michael F. Wei
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Publication number: 20210128303Abstract: The present disclosure describes tissue gripping devices, systems, and methods for gripping mitral valve tissue during treatment of a mitral valve and while a tissue fixation device is implanted in the mitral valve. The tissue gripping device includes a flexible member and one or more tissue gripping members coupled to one or more arms of the flexible member. The flexible member is formed from a shape-memory material, such as nitinol, and the tissue gripping member(s) are formed from a material that is more rigid than the shape-memory material. The tissue gripping member(s) are attached to the flexible member by threading or looping suture lines around and/or through the tissue gripping member(s) and the flexible member and/or by applying a cover material to the tissue gripping device to hold the tissue gripping member(s) against the flexible member.Type: ApplicationFiled: January 13, 2021Publication date: May 6, 2021Applicant: Abbott Cardiovascular Systems, Inc.Inventor: Michael F. Wei
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Patent number: 10945842Abstract: The present disclosure relates to repair devices for repair of regurgitant mitral valves. A repair device includes a body having a perimeter defining an upper side and a lower side. An annular groove is disposed along a posterior section of the perimeter of the device and is configured to receive posterior rim tissue of a mitral valve annulus. First and second anchors extend from the body in an anterior direction. The first and second anchors are configured to engage with respective commissures of the mitral valve to assist in securing the repair device in position. The repair device is structured to minimize or eliminate imparting or transmitting radially outward forces along an anterior section so as to avoid imparting forces to the septum to avoid hindering the function of the aortic valve and the left ventricular outflow tract.Type: GrantFiled: June 21, 2017Date of Patent: March 16, 2021Assignee: Evalve, Inc.Inventors: Michael F. Wei, Chad J. Abunassar
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Patent number: 10893941Abstract: The present disclosure describes tissue gripping devices, systems, and methods for gripping mitral valve tissue during treatment of a mitral valve and while a tissue fixation device is implanted in the mitral valve. The tissue gripping device includes a flexible member and one or more tissue gripping members coupled to one or more arms of the flexible member. The flexible member is formed from a shape-memory material, such as nitinol, and the tissue gripping member(s) are formed from a material that is more rigid than the shape-memory material. The tissue gripping member(s) are attached to the flexible member by threading or looping suture lines around and/or through the tissue gripping member(s) and the flexible member and/or by applying a cover material to the tissue gripping device to hold the tissue gripping member(s) against the flexible member.Type: GrantFiled: July 31, 2018Date of Patent: January 19, 2021Assignee: Abbott Cardiovascular Systems, Inc.Inventor: Michael F. Wei
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Patent number: 10856985Abstract: A device for adjusting a shape of a coronary sinus in a heart of a patient, the device comprising a flexible tube having: an outer wall extending between a proximal end and a distal end; a first bore extending from the proximal end to the distal end; a proximal flange attached to the proximal end; a distal flange attached to the distal end; wherein, the outer wall includes at least one accordion-like hinge region.Type: GrantFiled: November 21, 2017Date of Patent: December 8, 2020Assignee: Abbott Cardiovascular Systems Inc.Inventor: Michael F. Wei
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Publication number: 20200367871Abstract: Medical delivery system for accessing a tricuspid valve via an inferior vena cava, including an outer guide catheter, an inner guide catheter and an interventional catheter. The first deflection portion of the outer guide catheter is steerable to define a first outer-guide-catheter curve and the second deflection portion of the outer guide catheter is steerable to define a second outer-guide-catheter curve and the first deflection portion of the inner guide catheter is steerable to define a first inner-guide-catheter curve.Type: ApplicationFiled: May 22, 2020Publication date: November 26, 2020Applicant: EVALVE, INC.Inventors: Dylan T. Van Hoven, Michael F. Wei
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Patent number: 10779829Abstract: The present disclosure describes interventional devices, systems, and methods for closing a regurgitant gap in a cardiac valve. Interventional devices are configured to be deployed between two previously placed implants or between a previously placed implant and a valve commissure. The interventional devices compress captured leaflet tissue and/or apply a tensioning force along the line of coaptation to assist in closing the gap and reducing regurgitant flow through the gap.Type: GrantFiled: June 7, 2017Date of Patent: September 22, 2020Assignee: EVALVE, INC.Inventor: Michael F. Wei