Patents by Inventor Quang Quoc Tran
Quang Quoc Tran 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).
-
Patent number: 11771433Abstract: A vascular occluding device for modifying blood flow in a vessel, while maintaining blood flow to the surrounding tissue. The occluding device includes a flexible, easily compressible and bendable occluding device that is particularly suited for treating aneurysms in the brain. The neurovascular occluding device can be deployed using a micro-catheter. The occluding device can be formed by braiding wires in a helical fashion and can have varying lattice densities along the length of the occluding device. The occluding device could also have different lattice densities for surfaces on the same radial plane.Type: GrantFiled: February 11, 2021Date of Patent: October 3, 2023Assignee: COVIDIEN LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Publication number: 20210161537Abstract: A vascular occluding device for modifying blood flow in a vessel, while maintaining blood flow to the surrounding tissue. The occluding device includes a flexible, easily compressible and bendable occluding device that is particularly suited for treating aneurysms in the brain. The neurovascular occluding device can be deployed using a micro-catheter. The occluding device can be formed by braiding wires in a helical fashion and can have varying lattice densities along the length of the occluding device. The occluding device could also have different lattice densities for surfaces on the same radial plane.Type: ApplicationFiled: February 11, 2021Publication date: June 3, 2021Inventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 10548748Abstract: A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; expanding a stent, from a delivery device, across the aneurysm; and confirming that a stagnated area forms in the aneurysm. The stagnated area can form a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side. Upon confirming that the stagnated area forms in the aneurysm, the delivery device can be withdrawn from the blood vessel. The stagnated area can include the contrast agent. If the stagnated area does not form in the aneurysm, a second occluding device may be deployed. After withdrawing the delivery device, substantially all of the aneurysm progressively thromboses.Type: GrantFiled: December 13, 2017Date of Patent: February 4, 2020Assignee: COVIDIEN LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 10383748Abstract: A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; expanding a stent, from a delivery device, across the aneurysm; and confirming that a stagnated area forms in the aneurysm. The stagnated area can form a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side. Upon confirming that the stagnated area forms in the aneurysm, the delivery device can be withdrawn from the blood vessel. The stagnated area can include the contrast agent. If the stagnated area does not form in the aneurysm, a second occluding device may be deployed. After withdrawing the delivery device, substantially all of the aneurysm progressively thromboses.Type: GrantFiled: June 1, 2017Date of Patent: August 20, 2019Assignee: Covidien LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 10064747Abstract: A system and method for deploying an occluding device that can be used to remodel an aneurysm within the vessel by, for example, neck reconstruction or balloon remodeling. The system comprises an introducer sheath and an assembly for carrying the occluding device. The assembly includes an elongated flexible member having an occluding device retaining member for receiving a first end of the occluding device, a proximally positioned retaining member for engaging a second end of the occluding device and a support surrounding a portion of the elongated flexible member over which the occluding device can be positioned.Type: GrantFiled: July 16, 2012Date of Patent: September 4, 2018Assignee: Covidien LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Publication number: 20180161185Abstract: The instant disclosure is directed to medical devices having a lattice framework. The lattice framework may comprise a plurality of interconnected polymeric electrospun fiber members, or may comprise one or more wires formed into a plurality of interconnected members. The lattice framework may be substantially tubular, or may have a bowtie or cone configuration. The medical devices described herein may find particular uses as stents, flow diverters, and occlusive devices. The instant disclosure is also directed to methods of making such medical devices, using electrospinning and processing techniques.Type: ApplicationFiled: December 14, 2017Publication date: June 14, 2018Inventors: McKenzie Jacob KRESSLEIN, Brandon Javier BORJA, Jed JOHNSON, Tyler Matthew GROEHL, Devan OHST, Quang Quoc TRAN, Kevin J. NELSON
-
Publication number: 20180147075Abstract: A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; expanding a stent, from a delivery device, across the aneurysm; and confirming that a stagnated area forms in the aneurysm. The stagnated area can form a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side. Upon confirming that the stagnated area forms in the aneurysm, the delivery device can be withdrawn from the blood vessel. The stagnated area can include the contrast agent. If the stagnated area does not form in the aneurysm, a second occluding device may be deployed.Type: ApplicationFiled: December 13, 2017Publication date: May 31, 2018Inventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 9867723Abstract: A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; deploying an occlusion device across the aneurysm; producing an image of the aneurysm including the contrast agent; and withdrawing the delivery device from the vessel after observing that the aneurysm has been stagnated by a desired amount. The image may be two-dimensional or three-dimensional. Observing that the aneurysm has been stagnated may include determining a degree of stagnation, for example by comparing an area or volume of the contrast agent in a first image and a second image. The desired amount may be a certain degree of stagnation, identification of a shape indicative of stasis such as a flat surface, an approximate hemisphere, a mushroom, or a crescent. If the occlusion device does not achieve the desired amount, a second occluding device may be deployed.Type: GrantFiled: March 29, 2016Date of Patent: January 16, 2018Inventors: Aaron Berez, Quang Quoc Tran
-
Publication number: 20170304087Abstract: A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; expanding a stent, from a delivery device, across the aneurysm; and confirming that a stagnated area forms in the aneurysm. The stagnated area can form a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side. Upon confirming that the stagnated area forms in the aneurysm, the delivery device can be withdrawn from the blood vessel. The stagnated area can include the contrast agent. If the stagnated area does not form in the aneurysm, a second occluding device may be deployed.Type: ApplicationFiled: June 1, 2017Publication date: October 26, 2017Inventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 9668891Abstract: A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; expanding a stent, from a delivery device, across the aneurysm; and confirming that a stagnated area forms in the aneurysm. The stagnated area can form a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side. Upon confirming that the stagnated area forms in the aneurysm, the delivery device can be withdrawn from the blood vessel. The stagnated area can include the contrast agent. If the stagnated area does not form in the aneurysm, a second occluding device may be deployed. After withdrawing the delivery device, substantially all of the aneurysm progressively thromboses.Type: GrantFiled: July 7, 2016Date of Patent: June 6, 2017Assignee: Covidien LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Publication number: 20160317328Abstract: A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; expanding a stent, from a delivery device, across the aneurysm; and confirming that a stagnated area forms in the aneurysm. The stagnated area can form a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side. Upon confirming that the stagnated area forms in the aneurysm, the delivery device can be withdrawn from the blood vessel. The stagnated area can include the contrast agent. If the stagnated area does not form in the aneurysm, a second occluding device may be deployed.Type: ApplicationFiled: July 7, 2016Publication date: November 3, 2016Inventors: Aaron Lee Berez, Quang Quoc Tran
-
Publication number: 20160278908Abstract: A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; deploying an occlusion device across the aneurysm; producing an image of the aneurysm including the contrast agent; and withdrawing the delivery device from the vessel after observing that the aneurysm has been stagnated by a desired amount. The image may be two-dimensional or three-dimensional. Observing that the aneurysm has been stagnated may include determining a degree of stagnation, for example by comparing an area or volume of the contrast agent in a first image and a second image. The desired amount may be a certain degree of stagnation, identification of a shape indicative of stasis such as a flat surface, an approximate hemisphere, a mushroom, or a crescent. If the occlusion device does not achieve the desired amount, a second occluding device may be deployed.Type: ApplicationFiled: March 29, 2016Publication date: September 29, 2016Inventors: Aaron Berez, Quang Quoc Tran
-
Patent number: 9381104Abstract: A system and method for deploying an occluding device that can be used to remodel an aneurysm within the vessel by, for example, neck reconstruction or balloon remodeling. The system comprises an introducer sheath and an assembly for carrying the occluding device. The assembly includes an elongated flexible member having an occluding device retaining member for receiving a first end of the occluding device, a proximally positioned retaining member for engaging a second end of the occluding device and a support surrounding a portion of the elongated flexible member over which the occluding device can be positioned.Type: GrantFiled: July 16, 2012Date of Patent: July 5, 2016Assignee: Covidien LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Publication number: 20160095728Abstract: Described herein are flexible implantable occluding devices that can, for example, navigate the tortuous vessels of the neurovasculature. The occluding devices can also conform to the shape of the tortuous vessels of the vasculature. In some embodiments, the occluding devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. Some embodiments describe methods and apparatus for adjusting, along a length of the device, the porosity of the occluding device. In some embodiments, the occluding devices allows adequate blood flow to be provided to adjacent structures such that those structures, whether they are branch vessels or oxygen-demanding tissues, are not deprived of the necessary blood flow.Type: ApplicationFiled: October 16, 2015Publication date: April 7, 2016Inventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 9198666Abstract: A system and method for deploying an occluding device that can be used to remodel an aneurysm within the vessel by, for example, neck reconstruction or balloon remodeling. The system comprises an introducer sheath and an assembly for carrying the occluding device. The assembly includes an elongated flexible member having an occluding device retaining member for receiving a first end of the occluding device, a proximally positioned retaining member for engaging a second end of the occluding device and a support surrounding a portion of the elongated flexible member over which the occluding device can be positioned.Type: GrantFiled: July 16, 2012Date of Patent: December 1, 2015Assignee: Covidien LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 9161851Abstract: Described herein are flexible implantable occluding devices that can, for example, navigate the tortuous vessels of the neurovasculature. The occluding devices can also conform to the shape of the tortuous vessels of the vasculature. In some embodiments, the occluding devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. Some embodiments describe methods and apparatus for adjusting, along a length of the device, the porosity of the occluding device. In some embodiments, the occluding devices allows adequate blood flow to be provided to adjacent structures such that those structures, whether they are branch vessels or oxygen-demanding tissues, are not deprived of the necessary blood flow.Type: GrantFiled: September 13, 2013Date of Patent: October 20, 2015Assignee: Covidien LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 9125659Abstract: A vascular occluding device for modifying blood flow in a vessel, while maintaining blood flow to the surrounding tissue. The occluding device includes a flexible, easily compressible and bendable occluding device that is particularly suited for treating aneurysms in the brain. The neurovascular occluding device can be deployed using a micro-catheter. The occluding device can be formed by braiding wires in a helical fashion and can have varying lattice densities along the length of the occluding device. The occluding device could also have different lattice densities for surfaces on the same radial plane.Type: GrantFiled: March 18, 2013Date of Patent: September 8, 2015Assignee: Covidien LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 9095460Abstract: A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; deploying an occlusion device across the aneurysm; producing an image of the aneurysm including the contrast agent; and withdrawing the delivery device from the vessel after observing that the aneurysm has been obstructed by a desired amount. The image may be two-dimensional or three-dimensional. Observing that the aneurysm has been obstructed may include determining a degree of obstruction, for example by comparing an area or volume of the contrast agent in a first image and a second image. The desired amount may be a certain degree of obstruction, identification of a shape indicative of stasis such as a flat surface, an approximate hemisphere, a mushroom, or a crescent. If the occlusion device does not achieve the desired amount, a second occluding device may be deployed.Type: GrantFiled: October 16, 2012Date of Patent: August 4, 2015Assignee: Covidien LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 9095343Abstract: A system and method for deploying an occluding device that can be used to remodel an aneurysm within the vessel by, for example, neck reconstruction or balloon remodeling. The system comprises an introducer sheath and an assembly for carrying the occluding device. The assembly includes an elongated flexible member having an occluding device retaining member for receiving a first end of the occluding device, a proximally positioned retaining member for engaging a second end of the occluding device and a support surrounding a portion of the elongated flexible member over which the occluding device can be positioned.Type: GrantFiled: February 29, 2012Date of Patent: August 4, 2015Assignee: Covidien LPInventors: Aaron Lee Berez, Quang Quoc Tran
-
Patent number: 9050205Abstract: Described herein are flexible implantable occluding devices that can, for example, navigate the tortuous vessels of the neurovasculature. The occluding devices can also conform to the shape of the tortuous vessels of the vasculature. In some embodiments, the occluding devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. Some embodiments describe methods and apparatus for adjusting, along a length of the device, the porosity of the occluding device. In some embodiments, the occluding devices allows adequate blood flow to be provided to adjacent structures such that those structures, whether they are branch vessels or oxygen-demanding tissues, are not deprived of the necessary blood flow.Type: GrantFiled: July 20, 2012Date of Patent: June 9, 2015Assignee: Covidien LPInventors: Aaron Lee Berez, Quang Quoc Tran