Patents Assigned to Chestnut Medical Technologies, Inc.
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Publication number: 20110238041Abstract: A multi-layered catheter is provided, having a proximal end, a distal end, and a lumen extending therethrough. The catheter can have various sections of different flexibility extending distally along the length of the catheter. The catheter can have four layers along a proximal portion, and three layers along a distal portion. In some embodiments, the layers can comprise at least a stainless steel coil and a stainless steel braid. The catheter can exhibit both flexibility as well as kink resistance.Type: ApplicationFiled: March 24, 2010Publication date: September 29, 2011Applicant: CHESTNUT MEDICAL TECHNOLOGIES, INC.Inventors: Elaine Zhao Lim, Quang Quoc Tran, Ting Tina Ye
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Publication number: 20110166592Abstract: 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: March 10, 2011Publication date: July 7, 2011Applicant: Chestnut Medical Technologies, Inc.Inventors: Adrian Garcia, Ting Tina Ye, Quang Q. Tran, Aaron L. Berez
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Publication number: 20110152998Abstract: 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: ApplicationFiled: March 31, 2010Publication date: June 23, 2011Applicant: CHESTNUT MEDICAL TECHNOLOGIES, INC.Inventors: Aaron Lee Berez, Quang Quoc Tran
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Publication number: 20100331853Abstract: An intracorporeal grasping device includes a tubular member for entering a lumen of a human body and the tubular member having a distal end portion. An elongated core member is disposed within the interior cavity of the tubular member for rotational or slidable movement within the tubular member and the elongated core member having a proximal end portion and a distal end portion. The elongated core member includes a grasping configuration for capturing an object (e.g., clot or debris) therein.Type: ApplicationFiled: September 8, 2010Publication date: December 30, 2010Applicant: CHESTNUT MEDICAL TECHNOLOGIES, INC.Inventors: Adrian Garcia, Ting Tina Ye, Quang Q. Tran, Bart Bojanowski, Alec Piplani, Aaron Lee Berez
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Publication number: 20100082091Abstract: 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: April 28, 2009Publication date: April 1, 2010Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Lee Berez, Quang Quoc Tran
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Publication number: 20100010624Abstract: 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: June 23, 2009Publication date: January 14, 2010Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Lee Berez, Quang Quoc Tran
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Publication number: 20090319017Abstract: 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: June 23, 2009Publication date: December 24, 2009Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Lee Berez, Quang Quoc Tran
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Publication number: 20090318947Abstract: 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. The elongated flexible member may be a integral portion formed thereof that form a coil portion.Type: ApplicationFiled: April 20, 2009Publication date: December 24, 2009Applicant: Chestnut Medical Technologies, Inc.Inventors: Adrian Garcia, Ting Tina Ye, Quang Quoc Tran, Aaron Lee Berez
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Publication number: 20090292348Abstract: 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: April 28, 2009Publication date: November 26, 2009Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Lee Berez, Quang Quoc Tran
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Publication number: 20090287288Abstract: 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: April 17, 2009Publication date: November 19, 2009Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Lee Berez, Quang Quoc Tran
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Publication number: 20090287241Abstract: 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: April 17, 2009Publication date: November 19, 2009Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Lee Berez, Quang Quoc Tran
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Publication number: 20090270974Abstract: 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: April 28, 2009Publication date: October 29, 2009Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Lee Berez, Quang Quoc Tran
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Publication number: 20090198318Abstract: 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: ApplicationFiled: April 8, 2009Publication date: August 6, 2009Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Lee Berez, Quang Quoc Tran
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Publication number: 20090192536Abstract: 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: ApplicationFiled: April 6, 2009Publication date: July 30, 2009Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Lee Berez, Quang Quoc Tran
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Publication number: 20080269774Abstract: An intracorporeal grasping device includes a tubular member for entering a lumen of a human body and the tube member having a distal end portion. An elongated core member is disposed with the interior cavity of the tubular member for rotational or slidably movement within the tubular member and the elongated core member having a proximal end portion and a distal end portion. The elongated core member comprises a uniform diameter tube having some flexibility at the proximal end portion and greater flexibility while along a longitudinal axis in a direction towards the distal end portion; and a grasping configuration is provided for capturing an object (e.g., clot or debris) therein and the assembly may have a proximal end secured to the distal end of the elongated core member. The configuration has an expanded and contracted configuration, and distal sections configured to grasp an object.Type: ApplicationFiled: October 25, 2007Publication date: October 30, 2008Applicant: Chestnut Medical Technologies, Inc.Inventors: Adrian Garcia, Ting Tina Ye, Quang Q. Tran, Bart Bojanowski, Alec Piplani, Aaron Lee Berez
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Publication number: 20060271153Abstract: 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 postioned.Type: ApplicationFiled: May 24, 2006Publication date: November 30, 2006Applicant: CHESTNUT MEDICAL TECHNOLOGIES, INC.Inventors: Adrian Garcia, Ting Ye, Quang Tran, Aaron Berez
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Publication number: 20060271149Abstract: 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 introduer 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: ApplicationFiled: May 25, 2005Publication date: November 30, 2006Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Berez, Quang Tran
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Publication number: 20060206200Abstract: 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: May 24, 2006Publication date: September 14, 2006Applicant: CHESTNUT MEDICAL TECHNOLOGIES, INC.Inventors: Adrian Garcia, Ting Ye, Quang Tran, Aaron Berez
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Publication number: 20060206201Abstract: 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: May 24, 2006Publication date: September 14, 2006Applicant: CHESTNUT MEDICAL TECHNOLOGIES, INC.Inventors: Adrian Garcia, Ting Ye, Quang Tran, Aaron Berez
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Publication number: 20050267568Abstract: 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: May 25, 2005Publication date: December 1, 2005Applicant: Chestnut Medical Technologies, Inc.Inventors: Aaron Berez, Quang Tran