Patents Assigned to Cardiovascular Systems, Inc.
  • Publication number: 20210282926
    Abstract: A lubricated tubular graft is implanted in the inferior vena cava and the superior vena cava in order to control the inflow of blood to the right atrium. A bifurcated leg with a non-collapsing stent extends across the tricuspid valve. A bioprosthetic valve is positioned proximal of the stent in the bifurcated leg in order to regulate flow through the tricuspid valve and to eliminate tricuspid regurgitation.
    Type: Application
    Filed: June 2, 2021
    Publication date: September 16, 2021
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventor: Michael Francis Wei
  • Publication number: 20210275332
    Abstract: A balloon comprising: a center portion having a proximal end, a distal end opposite the proximal end, and a length between the proximal end and the distal end. The center portion comprises: a first nominal diameter and a first radial modulus at the proximal end; a second nominal diameter and a second radial modulus at the distal end; further wherein, the first nominal diameter is equal to the second nominal diameter, such that, when the balloon is inflated to a nominal pressure, the center portion has a constant diameter over the length; and further wherein, the first radial modulus is smaller than the second radial modulus, such that, when the balloon is inflated above a nominal pressure, the center portion adopts a tapered shape in which the proximal end has a first stretched diameter and the distal end has a second stretched diameter, the first stretched diameter being larger than the second stretched diameter.
    Type: Application
    Filed: May 17, 2021
    Publication date: September 9, 2021
    Applicant: Abbott Cardiovascular System Inc.
    Inventors: Stephen Craig Olson, JR., Senthil Eswaran, Erik Eli
  • Patent number: 11110264
    Abstract: The present invention provides an intravascular blood pump comprising an expandable and collapsible region distal to a pump assembly. In some embodiments, the expandable and collapsible region may comprise expandable and collapsible proximal and/or distal transition sections adjacent a central expandable and collapsible region. Support structure, e.g., an expandable and collapsible stent may comprise at least a part of the expandable and collapsible region. In some embodiments, a distal portion of the housing comprises the expandable and collapsible region, wherein an inversion of the distal housing results in a collapsed configuration and eversion of the distal housing results in an expanded configuration.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: September 7, 2021
    Assignee: Cardiovascular Systems, Inc.
    Inventors: Matthew D. Cambronne, Joseph P. Higgins, Benjamin D. Haselman, Tristan A. Van de Moortele, Matthew W. Tilstra, Jeffrey R. Stone
  • Patent number: 11109863
    Abstract: 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: Grant
    Filed: January 21, 2020
    Date of Patent: September 7, 2021
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS, INC.
    Inventor: Michael F. Wei
  • Patent number: 11090147
    Abstract: Disclosed is a guidewire stop configured to lock a medical device onto a guidewire. The guidewire stop comprises a locking element, an actuator coupled to the locking element and a locking tube, wherein at least a section of the guidewire and at least part of the locking element or actuator pass through the locking tube. Further disclosed is that the locking tube comprises an unlocking element configured to unlock the medical device from the guidewire. The disclosed guidewire stop has at least the following three configurations: —an initial unlocked configuration in which the guidewire stop and the medical device are movable relative to the guidewire; —a first locked configuration in which the guidewire stop and the medical device are not movable relative to the guidewire; and—a first unlocked configuration in which the guidewire stop and the medical device are movable relative to the guidewire.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: August 17, 2021
    Assignee: Cardiovascular Systems, Inc.
    Inventor: Benjamin Spenser
  • Publication number: 20210220621
    Abstract: A method of making a medical guidewire including providing a wire having a length that includes a proximal length and a distal length. The method further includes applying cold work to the distal length and not applying cold work to the proximal length, thereby imparting to the distal length a diameter that is smaller than the proximal length diameter; and applying a reducing process to the wire whereby the proximal length is reduced to have an outer diameter that is the same as the outer diameter of the distal length. The proximal length has an inner diameter and the distal length has an inner diameter that is less than the inner diameter of the proximal length.
    Type: Application
    Filed: January 22, 2020
    Publication date: July 22, 2021
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventor: Robert Charles Hayzelden
  • Patent number: 11051801
    Abstract: A closure device for closing an opening in tissue is provided. The closure device includes an elongate member through which needles may be deployed. The closure device also includes a closure element having a foot portion and a needle guide portion. The foot portion and the needle guide portion are each movable between a delivery configuration and a deployed configuration. The foot portion includes cuffs removably mounted thereon and having sutures connected therebetween. The needle guide portion includes needle guide apertures that guide the needles to the cuffs. The needles securely engage the cuffs and draw the cuffs and suture through the lumen wall so that the opening in the lumen wall can be closed with the sutures.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: July 6, 2021
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS, INC.
    Inventors: Wouter E. Roorda, Douglas H. Mehl
  • Patent number: 11051938
    Abstract: A lubricated tubular graft is implanted in the inferior vena cava and the superior vena cava in order to control the inflow of blood to the right atrium. A bifurcated leg with a non-collapsing stent extends across the tricuspid valve. A bioprosthetic valve is positioned proximal of the stent in the bifurcated leg in order to regulate flow through the tricuspid valve and to eliminate tricuspid regurgitation.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: July 6, 2021
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventor: Michael Francis Wei
  • Publication number: 20210187239
    Abstract: A method for managing a guidewire in preparation for a surgical operation, comprising attaching a block of resilient polymer to a coiled tube which contains a guidewire; attaching to the block of resilient polymer a card having printed information concerning the guidewire on a planar surface of the card; removing the guidewire from the coiled tube; removing the block of resilient polymer from the coiled tube while keeping the card having printed information attached to the block of resilient polymer; coiling the guidewire into a flat spiral form; capturing, in a slot formed in the block of resilient polymer, a plurality of portions of the guidewire, which portions are adjacent to and parallel with each other, thereby maintaining the guidewire in the flat spiral form.
    Type: Application
    Filed: February 16, 2021
    Publication date: June 24, 2021
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Lauren Coatsworth, Jimmy L. Quijas
  • Patent number: 11033711
    Abstract: A method for managing a guidewire in preparation for a surgical operation, comprising attaching a block of resilient polymer to a coiled tube which contains a guidewire; attaching to the block of resilient polymer a card having printed information concerning the guidewire on a planar surface of the card; removing the guidewire from the coiled tube; removing the block of resilient polymer from the coiled tube while keeping the card having printed information attached to the block of resilient polymer; coiling the guidewire into a flat spiral form; capturing, in a slot formed in the block of resilient polymer, a plurality of portions of the guidewire, which portions are adjacent to and parallel with each other, thereby maintaining the guidewire in the flat spiral form.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: June 15, 2021
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Lauren Coatsworth, Jimmy L. Quijas
  • Patent number: 11020582
    Abstract: The present invention provides an intravascular blood pump comprising an expandable and collapsible region distal to a pump assembly and proximal in certain embodiments to inlet apertures in the pump housing. In some embodiments, the expandable and collapsible region may comprise expandable and collapsible proximal and/or distal transition sections adjacent a central expandable and collapsible region. Support structure, e.g., an expandable and collapsible stent may comprise at least a part of the expandable and collapsible region.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: June 1, 2021
    Assignee: Cardiovascular Systems, Inc.
    Inventors: Matthew D. Cambronne, Joseph P. Higgins, Tristan A. Van de Moortele, Matthew W. Tilstra, Jeffrey R. Stone
  • Patent number: 11013904
    Abstract: The present invention provides an intravascular blood pump comprising a pump assembly without a flow inducer or diffuser, and proximal and distal flow rate or pressure sensors, wherein the distal flow rate or pressure sensor may be tracked distal to the impeller after placement of the blood pump within the patient's vasculature.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: May 25, 2021
    Assignee: Cardiovascular Systems, Inc.
    Inventor: Joseph P. Higgins
  • Patent number: 11007009
    Abstract: A method for manufacturing a shaping structure having a generally helical profile and configured to support electrodes for delivering electric energy into a cylindrical lumen of a patient. The method comprises providing a mandrel with a circular cylindrical shape and forming a first hole in the mandrel along the elongate axis, such that opposing ends of a bore of the first hole emerge at the proximal end and at the distal end; forming a second hole in the mandrel to extend from the curved surface to connect with the first hole; wrapping a metal wire around the mandrel; and inserting opposing ends of the metal wire into the second and the third hole respectively, and threading the opposing ends of the metal wire until they emerge from the opposing ends of the bore of the first hole; finally, heating the mandrel and the wire.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: May 18, 2021
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Benjamyn Serna, Jesus Magana, Michael Ngo, John Stankus
  • Patent number: 11006956
    Abstract: 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: Grant
    Filed: March 9, 2020
    Date of Patent: May 18, 2021
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventor: Michael F. Wei
  • Publication number: 20210128883
    Abstract: A guidewire for use in intravascular procedures has an inner coil that is radiopaque and an outer coil that is non-radiopaque at the distal end of the guidewire. The radiopaque inner coil is visible under fluoroscopy so that the physician can monitor the location of the distal end of the guidewire during a procedure. The inner coil and the outer coil can be formed from a single wire or a multi-filar wire. The inner coil and the outer coil can have any of the following cross-sections for enhanced torquability: I-beam; vertical rectangular; vertical ellipse; square; peanut shape; vertical hexagonal; horizontal hexagonal; and horizontal ellipse.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Puneet Kamal Singh Gill, Jonathan P. Durcan, Jessica Saenz
  • Publication number: 20210128875
    Abstract: A shaping tool is used to form a bend in the distal end of a guidewire. The guidewire distal end is inserted through a channel and into a cavity of the shaping tool. Using hand pressure, a first member is moved axially relative to a second member of the shaping tool, thereby moving the cavity relative to the channel and imparting a bend in the distal end of the guidewire.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Puneet Kamal Singh Gill, Jonathan P. Durcan
  • Publication number: 20210128181
    Abstract: A guidewire for use in intravascular procedures has a solder or weld joint at a distal end thereof. A plurality of dimples are formed on the solder/weld joint to increase the engagement and penetration of fibrous material including chronic total occlusions (CTO).
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Robert C. Hayzelden, Puneet Kamal Singh Gill
  • Publication number: 20210128884
    Abstract: A mold is used to form a solder joint to join the distal end of the guidewire to a wire coil. The mold has a cavity that can have different configurations so that the solder joint can be any of bullet shaped, micro-J shaped, cone shaped, truncated cone shaped, or have a textured surface.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventor: Robert C. Hayzelden
  • Publication number: 20210128874
    Abstract: A guidewire for use in intravascular procedures has an elongated core member including a proximal core section having a uniform diameter. One or more parabolic grind profile sections extend distally from the distal end of the proximal core section and provide a linear change in bending stiffness and a high degree of torque to the distal portion of the guidewire.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventor: Raymundo Rodriguez
  • Publication number: 20210128872
    Abstract: A guidewire for use in intravascular procedures has an inner coil that is radiopaque and an outer coil that is non-radiopaque at the distal end of the guidewire. The radiopaque inner coil is visible under fluoroscopy so that the physician can monitor the location of the distal end of the guidewire during a procedure. The inner coil and the outer coil can be formed from a single wire or a multi-filar wire. The inner coil and the outer coil can have any of the following cross-sections for enhanced torquability: I-beam; vertical rectangular; vertical ellipse; square; peanut shape; vertical hexagonal; horizontal hexagonal; and horizontal ellipse.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Roozbeh Kalhor, Matthew Vasquez, Puneet Kamal Singh Gill, Jonathan P. Durcan