US Patent No: 6,267,834

Number of patents in Portfolio can not be more than 2000

Process of manufacturing a radially expandable PTFE tape-reinforced vascular graft

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Abstract

A method for improving the radial enlargeability and other properties of tape-reinforced tubular vascular graft formed of sintered fluoropolymer(s), such as expanded, sintered PTFE. Broadly, the method comprises the step of radially shrinking the reinforcement tape layer of the graft, or the entire tape-reinforced graft, after sintering thereof. Such radial shrinkage of the reinforcement tape layer, or of the entire graft, renders the graft subsequently radially enlargeable by more than 5%, without tearing or breaking of the reinforcement tape layer of the graft. Radially enlargeable grafts of the present invention may be combined with various types of stents or anchoring systems, to form endovascular graft devices which are transluminally insertable and implantable within the lumen of a host blood vessel. Alternatively, radially enlargeable grafts of the present invention may be implanted by way of traditional surgical graft implantation techniques, without any radial enlargement of the graft at the time of implantation, so as to take advantage of the improved strength properties and suture-holding properties of the radially-shrunken tape-reinforced grafts of the present invention.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
EDWARDS LIFESCIENCES CORPORATIONIRVINE, CA775

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kuo, Chris Orange, CA 20 726
McCollam, Chris Irvine, CA 10 384
McIntyre, John Traverse City, MI 44 878
Peterson, Robert Dove Canyon, CA 39 487
Shannon, Donald Mission Viejo, CA 11 382

Cited Art

Patent Info (Count) # Cites Year
 
IMPRA, INC. (1)
4,955,899 Longitudinally compliant vascular graft 183 1989
 
MEDRAD, INC. (1)
4,909,979 Method for making a vascular graft 19 1984
 
NICHIAS CORPORATION (1)
5,128,092 Method for shaping tetrafluoroethylene resin pipe 5 1991
 
SORIN BIOMEDICAL INC. (1)
4,957,669 Method for producing tubing useful as a tapered vascular graft prosthesis 52 1989
 
W. L. GORE & ASSOCIATES, INC. (1)
5,026,513 Process for making rapidly recoverable PTFE 42 1989

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
INTRINSIC THERAPEUTICS, INC. (27)
6,936,072 Encapsulated intervertebral disc prosthesis and methods of manufacture 59 2002
7,717,961 Apparatus delivery in an intervertebral disc 20 2003
7,507,243 Devices and method for augmenting a vertebral disc 24 2003
7,563,282 Method of supporting nucleus pulposus 23 2003
7,727,241 Device for delivering an implant through an annular defect in an intervertebral disc 16 2004
8,002,836 Method for the treatment of the intervertebral disc anulus 0 2004
7,749,275 Method of reducing spinal implant migration 18 2004
7,513,911 Method of implanting dynamically stable spinal implant 43 2004
7,553,329 Stabilized intervertebral disc barrier 45 2004
7,658,765 Resilient intervertebral disc implant 17 2004
8,231,678 Method of treating a herniated disc 3 2006
7,879,097 Method of performing a procedure within a disc 16 2006
7,524,333 Method of anchoring an implant in an intervertebral disc 25 2006
7,500,978 Method for delivering and positioning implants in the intervertebral disc environment 21 2006
7,553,330 Methods of reinforcing an intervertebral disc annulus 22 2006
7,998,213 Intervertebral disc herniation repair 8 2006
7,972,337 Devices and methods for bone anchoring 11 2006
7,959,679 Intervertebral anulus and nucleus augmentation 9 2007
7,867,278 Intervertebral disc anulus implant 16 2008
8,025,698 Method of rehabilitating an anulus fibrosus 8 2009
8,021,425 Versatile method of repairing an intervertebral disc 8 2009
8,114,082 Anchoring system for disc repair 9 2009
8,323,341 Impaction grafting for vertebral fusion 0 2009
8,361,155 Soft tissue impaction methods 0 2010
8,409,284 Methods of repairing herniated segments in the disc 0 2011
8,257,437 Methods of intervertebral disc augmentation 3 2011
8,394,146 Vertebral anchoring methods 0 2011
 
TRIVASCULAR, INC. (6)
8,348,989 Endovascular graft joint and method for manufacture 0 2006
7,678,217 Method for manufacturing an endovascular graft section 1 2006
8,226,701 Stent and delivery system for deployment thereof 0 2007
8,066,755 System and method of pivoted stent deployment 1 2007
8,328,861 Delivery system and method for bifurcated graft 0 2007
8,083,789 Securement assembly and method for expandable endovascular device 0 2007
 
BOSTON SCIENTIFIC CORPORATION (4)
7,125,464 Method for manufacturing an endovascular graft section 13 2001
7,090,693 Endovascular graft joint and method for manufacture 10 2001
6,776,604 Method and apparatus for shape forming endovascular graft material 14 2001
7,147,455 Method and apparatus for shape forming endovascular graft material 5 2004
 
BOSTON SCIENTIFIC SCIMED, INC. (3)
7,857,843 Differentially expanded vascular graft 0 2004
7,806,922 Sintered ring supported vascular graft 0 2004
7,524,445 Method for making ePTFE and structure containing such ePTFE, such as a vascular graft 2 2004
 
CLEMSON UNIVERSITY (3)
7,189,259 Tissue material and process for bioprosthesis 19 2003
7,753,840 Tissue material process for forming bioprosthesis 0 2006
8,142,805 Implantable devices including fixed tissues 0 2007
 
C.R. BARD, INC. (2)
8,313,524 Self-sealing PTFE graft with kink resistance 0 2005
8,066,758 Vascular graft with kink resistance after clamping 1 2005
 
ADVANCED CARDIOVASCULAR SYSTEMS, INC. (1)
7,448,122 Method of compressing a polymeric layer of an expandable medical device 1 2003
 
SYNTHEON CARDIOLOGY, LLC (1)
8,252,036 Sealable endovascular implants and methods for their use 0 2007
 
TIMES MICROWAVE SYSTEMS, INC. (1)
6,780,360 Method of forming a PTFE insulation layer over a metallic conductor and product derived thereform 3 2001
 
W. L. GORE & ASSOCIATES, INC. (1)
8,029,563 Implantable devices with reduced needle puncture site leakage 0 2004
 
Other [Check patent profile for assignment information] (1)
8,454,612 Method for vertebral endplate reconstruction 0 2009

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 31, 2013
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00