Patents Assigned to Vascular Access Technologies, Inc.
  • Patent number: 12053602
    Abstract: Methods and devices for treating occlusive peripheral vascular diseases are described. The devices can include an access catheter having a guidewire lumen and stylet lumen, a guide tube having a curved distal end, a stylet, and an actuator handle. The methods describe techniques for using the described devices for performing vascular procedures, such as subintimal angioplasty.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: August 6, 2024
    Assignee: Vascular Access Technologies, Inc.
    Inventors: Lakshmikumar Pillai, Mark Henry Wholey
  • Patent number: 11654266
    Abstract: The present invention relates to methods of transvascular retrograde access placement and to devices that facilitate these methods. For purposes of the present invention, transvascular retrograde access placement generally comprises the insertion of a vascular catheter into a central blood vessel through the puncturing of the central blood vessel from the inside of the central blood vessel with a needle or other similarly configured device, or a needle-tipped guidewire of the present invention, and exiting that needle from the patient through the skin rather than the traditional approach of inserting a needle from the outside of the skin surface to the inside of a blood vessel.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: May 23, 2023
    Assignee: Vascular Access Technologies, Inc.
    Inventor: Lakshmikumar Pillai
  • Patent number: 11654224
    Abstract: Methods, devices, and kits for implanting a vascular graft to perform hemodialysis treatments on patients with renal failure are disclosed. The kits can include access devices comprised of an access catheter having a guidewire lumen and stylet lumen, a guide tube having a curved distal end, a stylet, an actuator handle and a vascular graft. The methods describe techniques for using the described kits and devices for performing vascular procedures, such as percutaneous implantation of the vascular graft.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: May 23, 2023
    Assignee: Vascular Access Technologies, Inc.
    Inventor: Lakshmikumar Pillai
  • Patent number: 11554256
    Abstract: Methods and devices for trans-jugular carotid access are disclosed. Methods within the scope of this disclosure include methods of trans-jugular carotid access originating in the leg of a patient or other location remote to the jugular vein and carotid artery and methods originating at the neck of a patient. Devices used in connection with the disclosed methods may comprise access catheters, lumens, and stylets.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: January 17, 2023
    Assignee: Vascular Access Technologies, Inc.
    Inventor: Lakshmikumar Pillai
  • Patent number: 11376403
    Abstract: Various methods employing transvascular access devices are described, including a method of placing a central catheter in a peripheral vein in an arm of a patient; a method of providing percutaneous access to the heart of a patient; a method of clearing a clotted arteriovenous dialysis graft; a method of creating multiple access points into a single blood vessel; a method of creating an AV fistula in a patient; and a method of providing a bypass to a blockage in a popliteal artery in a patient.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: July 5, 2022
    Assignee: Vascular Access Technologies, Inc.
    Inventor: Lakshmikumar Pillai
  • Patent number: 10617854
    Abstract: Methods and devices for trans-jugular carotid access are disclosed. Methods within the scope of this disclosure include methods of trans-jugular carotid access originating in the leg of a patient or other location remote to the jugular vein and carotid artery and methods originating at the neck of a patient. Devices used in connection with the disclosed methods may comprise access catheters, lumens, and stylets.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: April 14, 2020
    Assignee: Vascular Access Technologies, Inc.
    Inventor: Lakshmikumar Pillai
  • Patent number: 10342956
    Abstract: Various methods employing transvascular access devices are described, including a method of placing a central catheter in a peripheral vein in an arm of a patient; a method of providing percutaneous access to the heart of a patient; a method of clearing a clotted arteriovenous dialysis graft; a method of creating multiple access points into a single blood vessel; a method of creating an AV fistula in a patient; and a method of providing a bypass to a blockage in a popliteal artery in a patient.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: July 9, 2019
    Assignee: Vascular Access Technologies, Inc.
    Inventor: Lakshmikumar Pillai
  • Patent number: 10252027
    Abstract: Transvascular access devices and methods for transvascular access are provided. The transvascular access devices can include a guidewire lumen and a guide tube and stylet disposed in a second lumen. The guide tube can be used to control the orientation of the stylet and provide additional support for the stylet. The methods include providing a second entry point in a vessel of a patient remote from a first entry point. A vascular catheter can enter the vascular system of a patient at a first entry point and be advanced to a second entry point. A guide tube can be advanced out the second lumen of the vascular catheter with a stylet advanced out of the guide tube to pierce the vessel wall and skin of the patient at the second entry point. A catheter can be introduced to the vascular system at the second entry point.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: April 9, 2019
    Assignee: Vascular Access Technologies, Inc.
    Inventors: Lakshmikumar Pillai, Patrick Burt, John Lunsford, John Stiggelbout
  • Patent number: 9220874
    Abstract: Transvascular access devices and methods for transvascular access are provided. The transvascular access devices can include a guidewire lumen and a guide tube and stylet disposed in a second lumen. The guide tube can be used to control the orientation of the stylet and provide additional support for the stylet. The methods include providing a second entry point in a vessel of a patient remote from a first entry point. A vascular catheter can enter the vascular system of a patient at a first entry point and be advanced to a second entry point. A guide tube can be advanced out the second lumen of the vascular catheter with a stylet advanced out of the guide tube to pierce the vessel wall and skin of the patient at the second entry point. A catheter can be introduced to the vascular system at the second entry point.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: December 29, 2015
    Assignee: Vascular Access Technologies, Inc.
    Inventors: Lakshmikumar Pillai, Patrick Burt, John Lunsford, John Stiggelbout
  • Patent number: 8568435
    Abstract: A system for providing transvascular retrograde access in a central blood vessel of a patient. In some embodiments, the system has a handle; a catheter extending from the handle; and a tissue piercing element extending from the handle through the catheter, the tissue piercing element having a sharp distal tip adapted to extend from a distal portion of the catheter, the catheter and handle being adapted to be separated from the tissue piercing element, a distal portion of the tissue piercing element being adapted to serve as a guide for introduction of a device into the central blood vessel. The invention also includes a method of providing transvascular retrograde access to a central blood vessel of a patient.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: October 29, 2013
    Assignee: Vascular Access Technologies, Inc.
    Inventors: Lakshmikumar Pillai, Paul A. LaDuca, Frederich L. Alavar, Robert LaDuca
  • Patent number: 8409236
    Abstract: A system for providing transvascular retrograde access in a central blood vessel of a patient. In some embodiments, the system has a handle; a catheter extending from the handle; and a tissue piercing element extending from the handle through the catheter, the tissue piercing element having a sharp distal tip adapted to extend from a distal portion of the catheter, the catheter and handle being adapted to be separated from the tissue piercing element, a distal portion of the tissue piercing element being adapted to serve as a guide for introduction of a device into the central blood vessel. The invention also includes a method of providing transvascular retrograde access to a central blood vessel of a patient.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: April 2, 2013
    Assignee: Vascular Access Technologies, Inc.
    Inventors: Lakshmikumar Pillai, Paul A. LaDuca, Frederich L. Alavar, Robert LaDuca