US 20050010285A1
(19) United States
(12) Patent Application Publication (10) Pub. No.: US 2005/0010285 A1
(43) Pub. Date:
Lambrecht et al.
(54)
CARDIAC VALVE PROCEDURE METHODS
AND DEVICES
(57)
Jan. 13, 2005
ABSTRACT
The present invention discloses devices and methods for
(76) Inventors: Gregory H. Lambrecht, Natick, MA
performing intravascular procedures With out: cardiac
(US); John Liddicoat, Sewickley, PA
(US); Robert Kevin Moore, Natick,
MA (US)
porary ?lter devices, temporary valves, and prosthetic
bypass. The devices include various embodiments of tem
valves.
The temporary ?lter devices have one or more cannulae
Correspondence Address:
Which provide access for surgical tools for effecting repair of
Mark J. Pandiscio
Pandiscio & Pandiscio
470 Totten Pond Road
the cardiac valves. A cannula may have ?lters of various
Which prevent embolitic material from entering the coronary
Waltham, MA 02154 (US)
arteries and aorta.
(21) Appl. No.:
(22)
Filed:
con?gurations encircling the distal region of the cannula,
The temporary valve devices may also have one or more
10/787,057
Feb. 25, 2004
Related US. Application Data
(63)
(60)
Continuation of application No. 09/700,167, ?led on
Nov. 9, 2000, ?led as 371 of international application
No. PCT/US00/02126, ?led on Jan. 27, 2000.
Provisional application No. 60/ 117,599, ?led on Jan.
27, 1999. Provisional application No. 60/152,135,
?led on Aug. 25, 1999. Provisional application No.
60/161,934, ?led on Oct. 28, 1999.
cannulae Which guide the insertion of the valve into the
aorta. The valve devices expand in the aorta to occupy the
entire ?oW path of the vessel. In one embodiment, the
temporary valve is a disc of ?exible, porous, material that
acts to ?lter blood passing therethrough. A set of valve
lea?ets extend peripherally from the disc. These lea?ets can
alternately collapse to prevent blood ?oW through the valve
and extend to permit ?oW.
The prosthetic valves include valve ?xation devices Which
secure the prosthetic valve to the Wall of the vessel. In one
embodiment, the prosthetic valves have at least one sub
stantially rigid strut, at least tWo expandable ?xation rings
located about the circumference of the base of the apex of
Publication Classi?cation
the valve, and one or more commissures and lea?ets. The
prosthetic valves are introduced into the vascular system a
(51)
(52)
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compressed state, advanced to the site of implantation,
expanded and secured to the vessel Wall.
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