Patents by Inventor Tarun J. Edwin
Tarun J. Edwin 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).
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Patent number: 8012194Abstract: An endoluminal prosthesis including a first polymer member bonded to a second polymer member to selectively encapsulate a stent. Selective bonding between the first and second polymer members results in unbonded regions or pockets that accommodate movement of the stent, permitting compression of the prosthesis using minimal force and enabling collapse of the prosthesis to a low profile. The pockets are believed to encourage enhanced cellular penetration for rapid healing and may contain bioactive substances.Type: GrantFiled: February 27, 2006Date of Patent: September 6, 2011Assignee: Bard Peripheral Vascular, Inc.Inventors: Tarun J. Edwin, Scott L. Randall, Brendan McCrea, Christopher E. Banas
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Publication number: 20110196473Abstract: A method for making an encapsulated stent includes providing a first seamless unsintered ePTFE tube, providing a second seamless sintered ePTFE tube, positioning a self-expanding stent between the first and second ePTFE tubes to form an assembly, disposing an ePTFE interlayer member between the first and second ePTFE tubes, and joining the first ePTFE tube to the second ePTFE tube through openings in a wall of the stent by applying first pressure, and then heat, to the assembly.Type: ApplicationFiled: April 15, 2011Publication date: August 11, 2011Applicant: Bard Peripheral Vascular, Inc.Inventors: Brendan J. McCrea, Tarun J. Edwin, Christopher E. Banas
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Patent number: 7939000Abstract: A method for making an encapsulated stent includes providing a first seamless unsintered ePTFE tube, providing a second seamless sintered ePTFE tube, positioning a self-expanding stent between the first and second ePTFE tubes to form an assembly, and joining the first ePTFE tube to the second ePTFE tube through openings in a wall of the stent by applying first pressure, and then heat, to the assembly.Type: GrantFiled: November 17, 2008Date of Patent: May 10, 2011Assignee: Bard Peripheral Vascular, Inc.Inventors: Tarun J. Edwin, Brendan McCrea, Christopher E. Banas
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Publication number: 20090311132Abstract: A method for forming a self-expanding stent-graft, including coupling a shape memory member to a polymer cladding to form a polymer clad member, winding a length of the polymer clad member about a mandrel so that adjacent windings include regions of polymer cladding that overlap, heating the wound polymer clad member to join and seal the overlapping regions to one another, manipulating the stent-graft from a first diameter to a second diameter smaller than the first diameter, and loading the stent-graft into a restraining sheath, wherein the restraining sheath prevents the stent-graft from reverting to the first diameter.Type: ApplicationFiled: August 24, 2009Publication date: December 17, 2009Applicant: C.R. Bard, Inc.Inventors: Christopher E. Banas, Tarun J. Edwin, Brendan J. McCrea, Rajagopal R. Kowligi
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Patent number: 7578899Abstract: A method for forming a self-expanding stent-graft. The method includes coupling a shape memory member to a polymer cladding to form a polymer clad member, winding a length of the polymer clad member about a mandrel so that the polymer cladding has overlapping regions that form seams, and heating the wound polymer clad member to join and seal the overlapping regions to one another.Type: GrantFiled: May 8, 2006Date of Patent: August 25, 2009Assignee: C. R. Bard, Inc.Inventors: Tarun J. Edwin, Rajagopal R. Kowligi, Brendan McCrea, Christopher E. Banas
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Publication number: 20090125092Abstract: A method for making an encapsulated stent includes providing a first seamless unsintered ePTFE tube, providing a second seamless sintered ePTFE tube, positioning a self-expanding stent between the first and second ePTFE tubes to form an assembly, and joining the first ePTFE tube to the second ePTFE tube through openings in a wall of the stent by applying first pressure, and then heat, to the assembly.Type: ApplicationFiled: November 17, 2008Publication date: May 14, 2009Applicant: C.R. Bard, Inc.Inventors: Brendan J. McCrea, Tarun J. Edwin, Christopher E. Banas
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Patent number: 7468071Abstract: An implantable intraluminal device having a self-expanding stent encapsulated between a first and second seamless ePTFE tube. The implantable intraluminal device has a reduced first diametric dimension and an expanded second diametric dimension, and is adapted to be modeled to the in vivo profile of a receiving anatomical structure through radial expansion of at least a portion thereof to a third diametric dimension greater than the second diametric dimension.Type: GrantFiled: June 21, 2004Date of Patent: December 23, 2008Assignee: C. R. Bard, Inc.Inventors: Tarun J. Edwin, Brendan McCrea, Christopher E. Banas
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Patent number: 7306756Abstract: A method for making an encapsulated stent-graft having an essentially tubular configuration with a central longitudinal lumen and having a first diameter and a second diameter, wherein the first diameter is larger than the second diameter. The stent-graft may include a self-expanding stent and a first and second tube of biocompatible material between which the stent is positioned. The stent-graft may also include an interlayer member between the first and second tube. The method generally includes applying pressure and heat to a stent-graft assembly to form a monolithic layer of biocompatible material around the stent.Type: GrantFiled: June 21, 2004Date of Patent: December 11, 2007Assignee: Bard Peripheral Vascular, Inc.Inventors: Tarun J. Edwin, Brendan McCrea, Christopher E. Banas
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Patent number: 7083640Abstract: A flexible covered stent having a stent covered on a first surface by a first layer of biocompatible material and on a second surface by both a second and third layer of biocompatible material, the first and second layers and the first and third layers of biocompatible material being bonded to one another through openings in a wall in the stent. The first layer of biocompatible material is longer than both the second and third layers of biocompatible material such that at least a portion of the second surface of the stent is not covered by either second or third layer, imparting flexibility to the stent.Type: GrantFiled: April 30, 2004Date of Patent: August 1, 2006Assignee: C. R. Bard, Inc.Inventors: Sylvie Lombardi, Guido Koch, Richard Layne, Tarun J. Edwin, Wolfgang Supper, Walter Gamer, Thomas Kirchhoff
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Patent number: 7060150Abstract: A method for making an endoluminal prosthesis for implantation within a body lumen to maintain luminal patency, the prothesis including a support structure, such as a wire member, and a polymer component, such as a polymer cladding. The method may include joining a wire member to a polymer cladding, helically wrapping a length of the joined support wire member and polymer cladding such that adjacent windings of the polymer cladding have overlapping regions, and heating the joined support wire member and polymer cladding above the melt point of the polymer cladding.Type: GrantFiled: May 8, 2003Date of Patent: June 13, 2006Assignee: Bard Peripheral Vascular, Inc.Inventors: Chris Banas, Tarun J. Edwin, Brendan McCrea, Rajagopal R. Kowligi
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Patent number: 7004966Abstract: An endoluminal vascular device having a plurality of predetermined boding locations between respective first and second covering members to selectively encapsulate a support member. Selective bonding between the first and second covering members results in unbonded slip pockets to accommodate movement of the support member. Such a configuration allows compression of the support member with minimal force and also promotes a low profile of the compressed device. Unbonded regions of the covering members also encourage enhanced cellular penetration for rapid healing and can be configured to hold bioactive substances that diffuse through the covering members.Type: GrantFiled: April 9, 2003Date of Patent: February 28, 2006Assignee: C. R. Bard, Inc.Inventors: Tarun J. Edwin, Scott L. Randall, Brendan McCrea, Christopher E. Banas
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Patent number: 6881220Abstract: An endoluminal stent contains a hollow passageway for the circulation of heated and/or cryogenic fluids to recapture a previously implanted shape memory stent. The hollow passageway stent can have one or a plurality of passageways and is configured in a tubular shape with numerous coils, providing an empty tubular lumen through the center of the stent to allow blood flow. The stent is connected to a removable catheter that conducts fluid to the stent. Fluid flow may be regulated by valves incorporated in either the stent and/or the catheter.Type: GrantFiled: August 8, 2003Date of Patent: April 19, 2005Assignee: Bard Peripheral Vascular, Inc.Inventors: Tarun J. Edwin, Christopher E. Banas
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Publication number: 20040232588Abstract: A method for making an encapsulated stent-graft having an essentially tubular configuration with a central longitudinal lumen and having a first diameter and a second diameter, wherein the first diameter is larger than the second diameter. The stent-graft may include a self-expanding stent and a first and second tube of biocompatible material between which the stent is positioned. The stent-graft may also include an interlayer member between the first and second tube. The method generally includes applying pressure and heat to a stent-graft assembly to form a monolithic layer of biocompatible material around the stent.Type: ApplicationFiled: June 21, 2004Publication date: November 25, 2004Applicant: Bard Peripheral Vascular, Inc.Inventors: Tarun J. Edwin, Brendan McCrea, Christopher E. Banas
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Publication number: 20040236400Abstract: An implantable intraluminal device having a self-expanding stent encapsulated between a first and second seamless ePTFE tube. The implantable intraluminal device has a reduced first diametric dimension and an expanded second diametric dimension, and is adapted to be modeled to the in vivo profile of a receiving anatomical structure through radial expansion of at least a portion thereof to a third diametric dimension greater than the second diametric dimension.Type: ApplicationFiled: June 21, 2004Publication date: November 25, 2004Applicant: Bard Peripheral Vascular, Inc.Inventors: Tarun J. Edwin, Brendan McCrea, Christopher E. Banas
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Publication number: 20040204757Abstract: A flexible covered stent having a stent covered on a first surface by a first layer of biocompatible material and on a second surface by both a second and third layer of biocompatible material, the first and second layers and the first and third layers of biocompatible material being bonded to one another through openings in a wall in the stent. The first layer of biocompatible material is longer than both the second and third layers of biocompatible material such that at least a portion of the second surface of the stent is not covered by either second or third layer, imparting flexibility to the stent.Type: ApplicationFiled: April 30, 2004Publication date: October 14, 2004Inventors: Sylvie Lombardi, Guido Koch, Richard Layne, Tarun J. Edwin, Wolfgang Supper, Walter Gamer, Thomas Kirchhoff
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Patent number: 6797217Abstract: Shape memory alloy and elastically self-expanding endoluminal stents which are at least partially encapsulated in a substantially monolithic expanded polytetrafluorethylene (“ePTFE”) covering. An endoluminal stent, which has a reduced diametric dimension for endoluminal delivery and a larger in vivo final diametric diameter is encapsulated in an ePTFE covering which circumferentially covers both the luminal and abluminal walls along at least a portion of the longitudinal extent of the endoluminal stent. The endoluminal stent is fabricated from a shape memory alloy which exhibits either shape memory or pseudoelastic properties or from an elastic material having an inherent spring tension.Type: GrantFiled: September 12, 2002Date of Patent: September 28, 2004Assignee: Bard Peripheral Vascular, Inc.Inventors: Brendan J. McCrea, Tarun J. Edwin, Christopher E. Banas
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Patent number: 6790226Abstract: An endoluminal prosthesis for implantation within a body lumen to maintain luminal patency, including a support structure and a polymer component, which may be in the form of a wire member joined to a polymer cladding. The support structure may be formed of shape memory alloys, which exhibit either shape memory or pseudoelastic properties, or from an elastic material having an inherent spring tension such as spring steel, braided stainless steel wire, or composite materials, such as woven or braided carbon fibers. The polymer cladding may be formed from a variety of suitable materials.Type: GrantFiled: May 15, 2001Date of Patent: September 14, 2004Assignee: Bard Peripheral Vascular, Inc.Inventors: Tarun J. Edwin, Rajagopal R. Kowligi, Brendan J. McCrea, Christopher E. Banas
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Patent number: 6758858Abstract: Shape memory alloy and elastically self-expanding endoluminal stents which are at least partially encapsulated in a substantially monolithic expanded polytetrafluorethylene (“ePTFE”) covering. An endoluminal stent, which has a reduced diametric dimension for endoluminal delivery and a larger in vivo final diametric diameter is encapsulated in an ePTFE covering which circumferentially covers both the luminal and abluminal walls along at least a portion of the longitudinal extent of the endoluminal stent. The endoluminal stent is fabricated from a shape memory alloy which exhibits either shape memory or pseudoelastic properties or from an elastic material having an inherent spring tension.Type: GrantFiled: October 24, 2001Date of Patent: July 6, 2004Assignee: Bard Peripheral Vascular, Inc.Inventors: Brendan J. McCrea, Tarun J. Edwin, Christopher E. Banas
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Publication number: 20040044394Abstract: An endoluminal stent contains a hollow passageway for the circulation of heated and/or cryogenic fluids to recapture a previously implanted shape memory stent. The hollow passageway stent can have one or a plurality of passageways and is configured in a tubular shape with numerous coils, providing an empty tubular lumen through the center of the stent to allow blood flow. The stent is connected to a removable catheter that conducts fluid to the stent. Fluid flow may be regulated by valves incorporated in either the stent and/or the catheter.Type: ApplicationFiled: August 8, 2003Publication date: March 4, 2004Inventors: Tarun J. Edwin, Christopher E. Banas
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Publication number: 20030216805Abstract: An endoluminal vascular device having a plurality of predetermined boding locations between respective first and second covering members to selectively encapsulate a support member. Selective bonding between the first and second covering members results in unbonded slip pockets to accommodate movement of the support member. Such a configuration allows compression of the support member with minimal force and also promotes a low profile of the compressed device. Unbonded regions of the covering members also encourage enhanced cellular penetration for rapid healing and can be configured to hold bioactive substances that diffuse through the covering members.Type: ApplicationFiled: April 9, 2003Publication date: November 20, 2003Inventors: Tarun J. Edwin, Scott L. Randall, Brendan J. McCrea, Christopher E. Banas