Patents Assigned to Cardio Flow, Inc.
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Patent number: 11931064Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that fully or partially spirals around the drive shaft. In some embodiments, a distal stability element with a center of mass aligned with the longitudinal axis is fixedly mounted to the drive shaft.Type: GrantFiled: March 31, 2022Date of Patent: March 19, 2024Assignee: Cardio Flow, Inc.Inventors: Albert Selden Benjamin, Cassandra Ann Piippo Svendsen, Charles Anthony Plowe, Paul Joseph Robinson
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Patent number: 11931062Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that spirals around the drive shaft in a direction that is opposite to the wind direction of filars of the drive shaft, and opposite to the direction of rotation. In some embodiments, a concentric abrasive tip member is affixed to and extends distally from a distal-most end of the drive shaft.Type: GrantFiled: November 23, 2021Date of Patent: March 19, 2024Assignee: Cardio Flow, Inc.Inventors: Paul Joseph Robinson, Cassandra Ann Piippo Svendsen, Albert Selden Benjamin, Charles Anthony Plowe
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Patent number: 11931065Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating an abrasive element within the vessel. The abrasive element can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly.Type: GrantFiled: November 1, 2023Date of Patent: March 19, 2024Assignee: Cardio Flow, Inc.Inventors: Cassandra Ann Piippo Svendsen, Charles Anthony Plowe, Albert Selden Benjamin, Paul Joseph Robinson, Evan Leingang
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Patent number: 11839400Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating an abrasive element within the vessel. The abrasive element can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly.Type: GrantFiled: August 9, 2023Date of Patent: December 12, 2023Assignee: Cardio Flow, Inc.Inventors: Cassandra Ann Piippo Svendsen, Charles Anthony Plowe, Albert Selden Benjamin, Paul Joseph Robinson, Evan Leingang
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Patent number: 11832844Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, the handle assembly encapsulates an electric motor assembly, a pump assembly, and a controller assembly.Type: GrantFiled: February 4, 2022Date of Patent: December 5, 2023Assignee: Cardio Flow, Inc.Inventors: Cassandra Ann Piippo Svendsen, Ryan D. Welty, Michael Kallok
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Patent number: 11819237Abstract: This document describes rotational atherectomy devices and systems for removing or reducing stenotic lesions in blood vessels by rotating an abrasive element within the vessel to partially or completely remove the stenotic lesion material.Type: GrantFiled: December 8, 2021Date of Patent: November 21, 2023Assignee: Cardio Flow, Inc.Inventors: Paul Joseph Robinson, Cassandra Ann Piippo Svendsen, Charles Anthony Plowe, Albert Selden Benjamin
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Patent number: 11812988Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in implanted grafts by rotating one or more abrasive elements within the graft. The abrasive elements can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that fully or partially spirals around the drive shaft.Type: GrantFiled: January 14, 2022Date of Patent: November 14, 2023Assignee: Cardio Flow, Inc.Inventors: Michael Kallok, Cassandra Ann Piippo Svendsen, Paul Joseph Robinson, Charles Anthony Plowe, Albert Selden Benjamin
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Patent number: 11806041Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, the handle assembly encapsulates an electric motor assembly, a pump assembly, and a controller assembly.Type: GrantFiled: January 5, 2023Date of Patent: November 7, 2023Assignee: Cardio Flow, Inc.Inventors: Cassandra Ann Piippo Svendsen, Ryan D. Welty, Michael Kallok
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Patent number: 11759229Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating an abrasive element within the vessel. The abrasive element can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly. In particular embodiments, the handle assembly includes a compressed gas driven turbine member that drives rotation of the drive shaft. The turbine member can be rotatably attached to a carriage that is longitudinally translatable in relation to a housing of the handle assembly. The handle assembly can include a latch mechanism that when actuated allows the carriage to translate to a proximal-most position. While the carriage is in the proximal-most position, an open pathway is created so that a guidewire can be slidably passed through the handle assembly and a lumen of the drive shaft.Type: GrantFiled: April 10, 2023Date of Patent: September 19, 2023Assignee: Cardio Flow, Inc.Inventors: Cassandra Ann Piippo Svendsen, Charles Anthony Plowe, Albert Selden Benjamin, Paul Joseph Robinson, Evan Leingang
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Patent number: 11751902Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, the handle assembly encapsulates an electric motor assembly, a pump assembly, and a controller assembly.Type: GrantFiled: January 6, 2023Date of Patent: September 12, 2023Assignee: Cardio Flow, Inc.Inventors: Cassandra Ann Piippo Svendsen, Ryan D. Welty, Michael Kallok
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Patent number: 11730510Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, the handle assembly encapsulates an electric motor assembly, a pump assembly, and a controller assembly.Type: GrantFiled: January 11, 2023Date of Patent: August 22, 2023Assignee: Cardio Flow, Inc.Inventors: Cassandra Ann Piippo Svendsen, Ryan D. Welty, Michael Kallok
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Patent number: 11627983Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating an abrasive element within the vessel. The abrasive element can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly. In particular embodiments, the handle assembly includes a compressed gas driven turbine member that drives rotation of the drive shaft. The turbine member can be rotatably attached to a carriage that is longitudinally translatable in relation to a housing of the handle assembly. The handle assembly can include a latch mechanism that when actuated allows the carriage to translate to a proximal-most position. While the carriage is in the proximal-most position, an open pathway is created so that a guidewire can be slidably passed through the handle assembly and a lumen of the drive shaft.Type: GrantFiled: March 23, 2020Date of Patent: April 18, 2023Assignee: Cardio Flow, Inc.Inventors: Cassandra Ann Piippo Svendsen, Charles Anthony Plowe, Albert Selden Benjamin, Paul Joseph Robinson, Evan Leingang
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Patent number: 11457946Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that spirals around the drive shaft in a direction that is opposite to the wind direction of filars of the drive shaft, and opposite to the direction of rotation. In some embodiments, a concentric abrasive tip member is affixed to and extends distally from a distal-most end of the drive shaft.Type: GrantFiled: November 4, 2019Date of Patent: October 4, 2022Assignee: Cardio Flow, Inc.Inventors: Paul Joseph Robinson, Cassandra Ann Piippo Svendsen, Albert Selden Benjamin, Charles Anthony Plowe
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Patent number: 11317941Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that fully or partially spirals around the drive shaft. In some embodiments, a distal stability element with a center of mass aligned with the longitudinal axis is fixedly mounted to the drive shaft.Type: GrantFiled: December 26, 2019Date of Patent: May 3, 2022Assignee: Cardio Flow, Inc.Inventors: Albert Selden Benjamin, Cassandra Ann Piippo Svendsen, Charles Anthony Plowe, Paul Joseph Robinson
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Patent number: 11272954Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, the handle assembly encapsulates an electric motor assembly, a pump assembly, and a controller assembly.Type: GrantFiled: August 2, 2019Date of Patent: March 15, 2022Assignee: Cardio Flow, Inc.Inventors: Cassandra Ann Piippo Svendsen, Ryan D. Welty, Michael Kallok
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Patent number: 11253290Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in implanted grafts by rotating one or more abrasive elements within the graft. The abrasive elements can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that fully or partially spirals around the drive shaft.Type: GrantFiled: January 3, 2020Date of Patent: February 22, 2022Assignee: Cardio Flow, Inc.Inventors: Michael Kallok, Cassandra Ann Piippo Svendsen, Paul Joseph Robinson, Charles Anthony Plowe, Albert Selden Benjamin
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Patent number: 11224456Abstract: This document describes rotational atherectomy devices and systems for removing or reducing stenotic lesions in blood vessels by rotating an abrasive element within the vessel to partially or completely remove the stenotic lesion material.Type: GrantFiled: November 15, 2019Date of Patent: January 18, 2022Assignee: Cardio Flow, Inc.Inventors: Paul Joseph Robinson, Cassandra Ann Piippo Svendsen, Charles Anthony Plowe, Albert Selden Benjamin
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Patent number: 11213314Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that spirals around the drive shaft in a direction that is opposite to the wind direction of filars of the drive shaft, and opposite to the direction of rotation. In some embodiments, a concentric abrasive tip member is affixed to and extends distally from a distal-most end of the drive shaft.Type: GrantFiled: September 28, 2018Date of Patent: January 4, 2022Assignee: Cardio Flow, Inc.Inventors: Paul Joseph Robinson, Cassandra Ann Piippo Svendsen, Albert Selden Benjamin, Charles Anthony Plowe
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Patent number: 11147582Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in implanted grafts by rotating one or more abrasive elements within the graft. The abrasive elements can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that fully or partially spirals around the drive shaft.Type: GrantFiled: June 14, 2018Date of Patent: October 19, 2021Assignee: Cardio Flow, Inc.Inventors: Michael Kallok, Cassandra Ann Piippo Svendsen, Paul Joseph Robinson, Charles Anthony Plowe, Albert Selden Benjamin
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Patent number: 10639063Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating an abrasive element within the vessel. The abrasive element can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly. In particular embodiments, the handle assembly includes a compressed gas driven turbine member that drives rotation of the drive shaft. The turbine member can be rotatably attached to a carriage that is longitudinally translatable in relation to a housing of the handle assembly. The handle assembly can include a latch mechanism that when actuated allows the carriage to translate to a proximal-most position. While the carriage is in the proximal-most position, an open pathway is created so that a guidewire can be slidably passed through the handle assembly and a lumen of the drive shaft.Type: GrantFiled: November 20, 2018Date of Patent: May 5, 2020Assignee: Cardio Flow, Inc.Inventors: Cassandra Ann Piippo Svendsen, Charles Anthony Plowe, Albert Selden Benjamin, Paul Joseph Robinson, Evan Leingang