US Patent No: 6,458,155

Number of patents in Portfolio can not be more than 2000

Fresh donor heart valve sizer and method of use

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A donor heart valve sizer and method of sizing to increase the quality and yield of, and decrease the expense of fabricating, prosthetic heart valves. The sizer includes an axially-extending sizing portion sized to fit within the lumen of a donor heart valve. The sizing portion may be conical such that a resistance to further insertion is felt when the exterior of the sizing portion contacts the annulus of the valve. A measuring bracket attached to the sizing portion includes a scale aligned with the sizing portion that indicates the final expected valve size based on the position of the fresh donor valve on the sizing portion. The measuring bracket includes regions of acceptable valve sizes, and may also include regions of unacceptable valve sizes. A method of sizing includes utilizing the sizer in the slaughterhouse to reduce the overall number of valves shipped to the valve assembly facility to obtain a particular valve size. The sizer and method are particular useful for sizing xenograft valves, especially porcine aortic valves. The sizing portion may be made of polytetrafluoroethylene, and have an included taper of approximately 4.degree..

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Patent Owner(s)

Patent OwnerAddressTotal Patents
EDWARDS LIFESCIENCES CORPORATIONIRVINE, CA838

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lam, Hung Room 2208, Sui Lung House, Siu Sai Wan Estate, Chai Wan, HK 9 181
Ton-That, Cuong Irvine, CA 5 115
Van, Nguyen Son Hopewell Junction, NY 5 144

Cited Art Landscape

Patent Info (Count) # Cites Year
 
EDWARDS LIFESCIENCES CORPORATION (4)
4,372,743 Low-pressure fixation of valvular tissue intended for implantation 34 1981
5,197,979 Stentless heart valve and holder 102 1990
6,001,126 Stentless bioprosthetic heart valve with coronary protuberances and related methods for surgical repair of defective heart valves 64 1997
6,214,054 Method for fixation of biological tissues having mitigated propensity for post-implantation calcification and thrombosis and bioprosthetic devices prepared thereby 16 1998
 
MEDTRONIC, INC. (2)
5,011,481 Holder for annuloplasty ring 80 1989
6,166,184 Process for making a bioprosthetic device 50 1997
 
Kastec Corporation (1)
4,211,241 Heart valve sizing gauge 42 1978
 
PETERS SURGICAL (1)
5,961,539 Method and apparatus for sizing, stabilizing and/or reducing the circumference of an anatomical structure 143 1997
 
ST. JUDE MEDICAL, INC. (1)
5,814,098 Adjustable sizing apparatus 70 1996
 
Other [Check patent profile for assignment information] (1)
5,042,161 Intravascular sizing method and apparatus 51 1985

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
CARDIACMD, INC. (10)
8,430,925 Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same 0 2005
8,128,692 Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same 1 2005
7,785,341 Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same 3 2005
8,147,541 Methods and devices for delivery of prosthetic heart valves and other prosthetics 0 2006
7,749,266 Methods and devices for delivery of prosthetic heart valves and other prosthetics 1 2006
8,376,865 Torque shaft and torque shaft drive 7 2007
8,500,799 Prosthetic heart valves, support structures and systems and methods for implanting same 0 2007
8,142,492 Prosthetic valve implantation systems 0 2007
8,608,770 Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same 0 2010
8,728,156 Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same 0 2012
 
CLEMSON UNIVERSITY (2)
7,189,259 Tissue material and process for bioprosthesis 34 2003
7,753,840 Tissue material process for forming bioprosthesis 0 2006
 
PHOENIX BIOMEDICAL, INC. (2)
8,585,594 Methods of assessing inner surfaces of body lumens or organs 0 2006
8,057,396 Device for assessing a cardiac valve 1 2010
 
C.R. BARD, INC. (1)
8,709,069 Flanged graft with trim lines 0 2006
 
CardiacMC, Inc. (1)
8,403,981 Methods and devices for delivery of prosthetic heart valves and other prosthetics 1 2006
 
MEDTRONIC, INC. (1)
7,367,984 Methods and apparatus for sizing fresh donor heart valves 4 2003
 
ST. JUDE MEDICAL, INC. (1)
6,719,785 Aortic heart valve prosthesis implantation tool 13 2001

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 1, 2014
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