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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First Claim

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Patent Owner(s)

  • EDWARDS LIFESCIENCES CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lam, Hung Norco, CA 9 238
Ton-That, Cuong Irvine, CA 4 147
Van, Nguyen Son Irvine, CA 5 159

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (9)
4,372,743 Low-pressure fixation of valvular tissue intended for implantation 40 1981
5,042,161 Intravascular sizing method and apparatus 63 1985
5,011,481 Holder for annuloplasty ring 85 1989
5,197,979 Stentless heart valve and holder 115 1990
* 5,814,098 Adjustable sizing apparatus 99 1996
5,961,539 Method and apparatus for sizing, stabilizing and/or reducing the circumference of an anatomical structure 185 1997
* 6,166,184 Process for making a bioprosthetic device 63 1997
6,001,126 Stentless bioprosthetic heart valve with coronary protuberances and related methods for surgical repair of defective heart valves 77 1997
* 6,214,054 Method for fixation of biological tissues having mitigated propensity for post-implantation calcification and thrombosis and bioprosthetic devices prepared thereby 22 1998
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (30)
* 6,719,785 Aortic heart valve prosthesis implantation tool 14 2001
* 2003/0078,651 Aortic heart valve prosthesis implantation tool 0 2001
* 7,367,984 Methods and apparatus for sizing fresh donor heart valves 9 2003
* 2004/0225,320 Methods and apparatus for sizing fresh donor heart valves 0 2003
* 2004/0064,181 Vascular prosthesis 8 2003
7,189,259 Tissue material and process for bioprosthesis 50 2003
* 2004/0158,320 Tissue material and process for bioprosthesis 10 2003
* 2004/0153,145 Fixation method for bioprostheses 48 2003
8,430,925 Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same 2 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 7 2005
9,028,539 Flanged graft for end-to-side anastomosis 0 2005
8,403,981 Methods and devices for delivery of prosthetic heart valves and other prosthetics 2 2006
8,147,541 Methods and devices for delivery of prosthetic heart valves and other prosthetics 1 2006
7,749,266 Methods and devices for delivery of prosthetic heart valves and other prosthetics 1 2006
* 8,709,069 Flanged graft with trim lines 0 2006
* 2007/0005,128 Flanged graft with trim lines 7 2006
8,585,594 Methods of assessing inner surfaces of body lumens or organs 1 2006
7,753,840 Tissue material process for forming bioprosthesis 0 2006
* 2007/0005,132 Tissue material and process for bioprosthesis 33 2006
8,376,865 Torque shaft and torque shaft drive 106 2007
8,500,799 Prosthetic heart valves, support structures and systems and methods for implanting same 1 2007
8,142,492 Prosthetic valve implantation systems 13 2007
* 2010/0280,598 VASCULAR GRAFT PROSTHESIS HAVING A REINFORCED MARGIN FOR ENHANCED ANASTOMOSIS 7 2008
* 9,050,049 Urethra gauge and methods of manufacture, and operation thereof 0 2009
* 2010/0016,760 URETHRA GAUGE AND METHODS OF MANUFACTURE, AND OPERATION THEREOF 0 2009
8,057,396 Device for assessing a cardiac valve 7 2010
8,608,770 Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same 1 2010
9,168,134 Method for delivering a prosthetic heart valve with an expansion member 0 2011
8,728,156 Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same 0 2012
* Cited By Examiner