Patents Assigned to Vascular Access Technologies, Inc.
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Patent number: 12053602Abstract: 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: GrantFiled: December 7, 2017Date of Patent: August 6, 2024Assignee: Vascular Access Technologies, Inc.Inventors: Lakshmikumar Pillai, Mark Henry Wholey
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Patent number: 11654266Abstract: 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: GrantFiled: August 30, 2019Date of Patent: May 23, 2023Assignee: Vascular Access Technologies, Inc.Inventor: Lakshmikumar Pillai
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Patent number: 11654224Abstract: 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: GrantFiled: December 27, 2017Date of Patent: May 23, 2023Assignee: Vascular Access Technologies, Inc.Inventor: Lakshmikumar Pillai
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Patent number: 11554256Abstract: 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: GrantFiled: April 13, 2020Date of Patent: January 17, 2023Assignee: Vascular Access Technologies, Inc.Inventor: Lakshmikumar Pillai
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Patent number: 11376403Abstract: 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: GrantFiled: July 5, 2019Date of Patent: July 5, 2022Assignee: Vascular Access Technologies, Inc.Inventor: Lakshmikumar Pillai
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Patent number: 10617854Abstract: 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: GrantFiled: December 7, 2017Date of Patent: April 14, 2020Assignee: Vascular Access Technologies, Inc.Inventor: Lakshmikumar Pillai
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Patent number: 10342956Abstract: 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: GrantFiled: March 20, 2017Date of Patent: July 9, 2019Assignee: Vascular Access Technologies, Inc.Inventor: Lakshmikumar Pillai
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Patent number: 10252027Abstract: 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: GrantFiled: November 23, 2015Date of Patent: April 9, 2019Assignee: Vascular Access Technologies, Inc.Inventors: Lakshmikumar Pillai, Patrick Burt, John Lunsford, John Stiggelbout
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Patent number: 9220874Abstract: 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: GrantFiled: May 30, 2013Date of Patent: December 29, 2015Assignee: Vascular Access Technologies, Inc.Inventors: Lakshmikumar Pillai, Patrick Burt, John Lunsford, John Stiggelbout
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Patent number: 8568435Abstract: 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: GrantFiled: March 1, 2013Date of Patent: October 29, 2013Assignee: Vascular Access Technologies, Inc.Inventors: Lakshmikumar Pillai, Paul A. LaDuca, Frederich L. Alavar, Robert LaDuca
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Patent number: 8409236Abstract: 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: GrantFiled: August 23, 2010Date of Patent: April 2, 2013Assignee: Vascular Access Technologies, Inc.Inventors: Lakshmikumar Pillai, Paul A. LaDuca, Frederich L. Alavar, Robert LaDuca