Conventional approaches for cardiac valve replacement require the cutting of a relatively large opening in the patient's sternum (“sternotomy”) or thoracic cavity (“thoracotomy”) in order to allow the surgeon to access the patient's heart. Additionally, these approaches require arrest of the patient's heart and a cardiopulmonary bypass (i.e., use of a heart-lung bypass machine to oxygenate and circulate the patient's blood). Despite their invasiveness, these surgical approaches may be reasonably safe for a first intervention. However, tissue adherences resulting from the first surgery may increase the risks (e.g., death) associated with subsequent valve replacement surgeries. See Akins et al., “Risk of Reoperative Valve Replacement for Failed Mitral and Aortic Bioprostheses”, Ann Thorac Surg 1998; 65:1545-52; and Weerasinghe et al., “First Redo Heart Valve Replacement—A 10-Year Analysis”, Circulation 1999; 99:655-658; each of which is incorporated by reference herein in its entirety.
Synthetic valves and biological valves have been used for cardiac valve replacement with varying results. Synthetic valves rarely fail but require life-long anti-coagulant treatment to prevent blood from clotting (thrombosis) in and around the replacement valve. Such anti-coagulant treatment significantly limits patients' activities and can cause various other complications. Biological valves do not require such anti-coagulation treatment but typically fail within 10-15 years. Thus, to limit the need for and risks associated with re-operation on failed biological valves, traditionally only patients with less than about 10-15 years to live have received biological valve replacements. Patients with longer life expectancies have received synthetic valves and anti-coagulant treatment.
Attempts have been made to develop less-invasive surgical methods for cardiac valve replacement. These surgical methods, referred to as percutaneous heart valve replacement therapies (PHVT), use a catheter to deliver a replacement valve to an implantation site using the patient's vascular system. These PHVT attempts have various shortcomings, including their inability to ensure proper positioning and stability of the replacement valve within the patient's body.
In view of the foregoing, it would be desirable to provide improved methods, systems, and devices for cardiac valve replacement.
Some embodiments of the present invention are directed to systems, methods, and devices for cardiac valve replacement. For example, these methods, systems, and devices may be applicable to the full range of cardiac-valve therapies including the replacement of failed aortic, mitral, tricuspid, and pulmonary valves. In some embodiments, the present invention may facilitate a surgical approach whereby surgery is performed on a beating heart without the need for an open-chest cavity and heart-lung bypass. This minimally-invasive surgical approach may to reduce the risks associated with replacing a failed native valve in the first instance, as well as the risks associated with secondary or subsequent surgeries to replace failed artificial (e.g., biological or synthetic) valves. Stent-valves according to some embodiments of the present invention may include a valve component and at least one stent component (e.g., a single-stent-valve or a double-stent-valve). The valve component may include a biological or synthetic (e.g., is mechanical) valve and/or any other suitable material(s). The stent and valve components may be capable of at least two configurations: a collapsed configuration (e.g., during delivery) and an expanded configuration (e.g., after implantation).
In some embodiments, the stent component of a stent-valve may include a first strut and a second strut with ends located at different positions along a longitudinal axis of the stent component, wherein the first strut and the second strut provide an axial resistance for anchoring the stent at an implantation site. Multiple installations of the first strut and the second strut may be provided, where such installations are positioned horizontally along a perimeter of the stent component. In some embodiments, the first strut and the second strut may be connected.
Alternatively or additionally, the stent-component of a stent valve may include multiple locking elements protruding outwardly from an outer surface of the stent component, where each locking element includes a first end adjacent to the outer surface of the stent component and a second end spaced apart from the outer surface of the stent component. The second end of at least a first locking element may be located at a different position along a longitudinal axis of the stent component than the second end of at least a second locking element. For example, in one embodiment, the first locking element and the second locking element may have substantially the same lengths, and the first ends of the first and second locking elements may be positioned at multiple, different levels along the longitudinal axis or the stent component. In another embodiment, the first locking element and the second locking element may have different lengths, and the first ends of the first and second locking elements may be positioned at substantially the same level along the longitudinal axis of the stent component.
In some embodiments, the stent component of a stent-valve may include at least a first commissural post and a second commissural post adjacent to a body of the stent component, where the external contours of the first and second commissural posts collectively form a generally concave shape. In some embodiments, each of the external contours may slope inwardly toward the center of the corresponding commissural post in the direction of the body of to the stent component. In other embodiments, external contours of adjacent commissural posts may be generally convexly shaped.
In some embodiments, the valve component of a stent-valve may include an outer surface covered with fabric (e.g., at least a portion thereof, or substantially the entire surface). The valve component may include at least one suture along a free edge of the valve component and at least one suture along an inflow free edge of the valve component, where the fabric includes a skirt that extends below the valve component. A free edge of the skirt may be folded over a bottom portion of the corresponding stent component and sutured to the stent component. In some embodiments, substantially all or at least a portion of the fibers of the fabric are oriented +/−45 degrees with respect to a longitudinal axis of the valve component. Alternatively or additionally, the stent component may include at least one Y-shaped structure fixed to the valve component by one or more (e.g., 3) sutures forming a corresponding Y-shaped configuration. In some embodiments, the stent component comprises an annular groove and the free edge of the skirt is positioned within the groove. Alternatively or additionally, the free edge of the skirt comprises at least one cut oriented in the direction of a longitudinal axis of the stein component. In some embodiments, the annular groove may be at least partially filled with a fibrous, foam, or other biocompatible material.
In still other embodiments of the present invention, a stent-valve delivery system is provided. A first assembly is provided that includes an outer sheath and a guide wire tubing. The delivery system also includes a second assembly including a stent holder configured for removable attachment to at least one attachment element of a stent-valve. The stent-valve may be positioned over the guide wire tubing of the first assembly. The first assembly and the second assembly may be configured for relative movement with respect to one another in order to transition from a closed position to an open position. In the closed position, the outer sheath may encompass the stent-valve still attached to the stent holder and thus constrain expansion of the stent-valve. In the open position, the outer sheath may not constrain expansion of the stent-valve and thus the stent-Valve may detach from the stent holder and expand to a fully expanded configuration.
In some embodiments, the first assembly and the second assembly may be configured to transition from the closed position, to a partially-open position, to the open position. In the partially-open position, the stent-valve may expand partially but not detach from the steal holder because the outer sheath may still encompass the at least one attachment element of the stent-valve and the stent holder. When the stent-valve is in the partially-expanded configuration, it may be determined whether the stent-valve will be positioned correctly if the stent-valve is expanded to the fully expanded configuration. Alternatively or additionally, the functionality of the stent-valve may be tested (e.g., to determine whether the stent-valve will permit sufficient blood-flow) when the stent-valve is in the partially-expanded configuration.
In some embodiments, the first assembly of the stent-valve delivery system may include a coil-reinforced outer sheath and/or a substantially dome-shaped tip, which may provide resistance to kinking due to the bending moment acting onto the delivery system during positioning within, for example, an aortic arch.
In some embodiments, the stoat holder of the delivery system may include proximal and distal components positioned adjacent to one another (i.e., no gap). This may reduce or eliminate the risk of catching or damaging the outer sheath of the first assembly when closing the delivery device.
In some embodiments, the stent holder may include at least one chamfered edge positioned adjacent to at feast one attachment pin of the stent holder, where the at least one attachment pin is configured for removable attachment to an attachment element of a stent component. The chamfered edge may assist with the release and expansion of the stent-valve from the stent holder when the stent holder is rotated axially.
In still other embodiments of the present invention, an apparatus is provided for positioning and attaching a stent-valve comprising a plurality of attachment elements to a corresponding plurality of attachment pins of a stent holder. The apparatus may include an elongate, pliable member (e.g., suture or wire) configured to be threaded through the plurality of attachment elements. The apparatus may also include a tube for receiving the elongate, pliable member. Pulling the elongate, pliable member through the tubing while holding the tubing in a fixed position may collapse the stent-valve diameter to allow for engagement of the attachment elements to the attachment pins.
In some embodiments, an apparatus is provided for collapsing a diameter of a stent-valve to allow capture of the stent-valve within a sheath of a delivery system. The apparatus may include an elongate, substantially flat strip comprising a slit positioned perpendicular to a longitudinal axis of the strip. The elongate, substantially flat strip may include an end having a height less than a height of the slit, such that insertion of the end into the slit forms a loop. Upon placement of an expanded stent-valve within the loop, pulling the end through the slit causes a reduction of the loop diameter and thereby collapses the diameter of the stent-valve. The elongate, substantially flat strip may be formed from any suitable material including, for example, polymer and metal.
For a better understanding of the present invention, reference is made to the following description, taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout, and in which:
Thus it is seen that stent-valves (e.g., single-stent-valves, double-stent-valves) and associated methods and systems for surgery are provided. Although particular embodiments have been disclosed herein in detail, this has been done by way of example for purposes of example and illustration only, and is not intended to be limiting with respect to the scope of the appended claims, which follow. To that end, any reference to measurements, distances and the like, are for illustrative/example purposes. In particular, it is contemplated by the applicant that various substitutions, alterations, and modifications may be made without departing from the spirit and scope of the invention as defined by the claims. Other aspects, advantages, and modifications are considered to be within the scope of the following claims. The claims presented are representative of some of the inventions disclosed herein. Other, unclaimed inventions are also contemplated. The applicant reserves the right to pursue such inventions in later claims.
This application is a continuation of U.S. patent application Ser. No. 13/598,918, filed Aug. 30, 2012, which is a continuation of U.S. patent application Ser. No. 13/351,438, filed Jan. 17, 2012, which is a continuation of U.S. patent application Ser. No. 13/150,723, filed Jun. 1, 2011, which is a continuation of U.S. patent application Ser. No. 12/674,112, filed Feb. 18, 2010, which is a national stage filing of PG171E2008/002180, filed Aug. 21, 2008, which claims the benefit of priority to U.S. Provisional Application No. 60/965,780, filed Aug. 21, 2007, the entire contents of which are hereby incorporated by reference in their entireties.
Number | Name | Date | Kind |
---|---|---|---|
3755823 | Hancock | Sep 1973 | A |
3781969 | Anderson | Jan 1974 | A |
4106129 | Carpentier et al. | Aug 1978 | A |
4191218 | Clark | Mar 1980 | A |
4470157 | Love | Sep 1984 | A |
4477930 | Totten et al. | Oct 1984 | A |
4834755 | Silvestrini et al. | May 1989 | A |
5078720 | Burton et al. | Jan 1992 | A |
5163955 | Love et al. | Nov 1992 | A |
5192301 | Kamiya et al. | Mar 1993 | A |
5344442 | Deac | Sep 1994 | A |
5354330 | Hanson | Oct 1994 | A |
5411552 | Andersen et al. | May 1995 | A |
5480424 | Cox | Jan 1996 | A |
5499995 | Teirstein et al. | Mar 1996 | A |
5500015 | Deac | Mar 1996 | A |
5540712 | Kleshinski et al. | Jul 1996 | A |
5571174 | Love et al. | Nov 1996 | A |
5609626 | Quijano | Mar 1997 | A |
5653749 | Love et al. | Aug 1997 | A |
5662703 | Yurek et al. | Sep 1997 | A |
5693085 | Buirge et al. | Dec 1997 | A |
5713950 | Cox | Feb 1998 | A |
5713951 | Garrison et al. | Feb 1998 | A |
5718725 | Sterman | Feb 1998 | A |
5769882 | Fogarty et al. | Jun 1998 | A |
5797960 | Stevens | Aug 1998 | A |
5807327 | Green et al. | Sep 1998 | A |
5817126 | Imran | Oct 1998 | A |
5823956 | Roth | Oct 1998 | A |
5824041 | Lenker et al. | Oct 1998 | A |
5840081 | Andersen et al. | Nov 1998 | A |
5843158 | Lenker et al. | Dec 1998 | A |
5855600 | Alt | Jan 1999 | A |
5855601 | Bessler et al. | Jan 1999 | A |
5861028 | Angell | Jan 1999 | A |
5924424 | Stevens et al. | Jul 1999 | A |
5938697 | Killion et al. | Aug 1999 | A |
5957949 | Leonhardt et al. | Sep 1999 | A |
5957974 | Thompson et al. | Sep 1999 | A |
5976174 | Ruiz | Nov 1999 | A |
5980533 | Holman | Nov 1999 | A |
6029671 | Stevens | Feb 2000 | A |
6083257 | Taylor et al. | Jul 2000 | A |
6102944 | Huynh et al. | Aug 2000 | A |
6110201 | Quijano | Aug 2000 | A |
6168614 | Andersen et al. | Jan 2001 | B1 |
6171335 | Wheatley | Jan 2001 | B1 |
6183481 | Lee et al. | Feb 2001 | B1 |
6196230 | Hall et al. | Mar 2001 | B1 |
6214036 | Letendre et al. | Apr 2001 | B1 |
6254564 | Wilk | Jul 2001 | B1 |
6287334 | Moll et al. | Sep 2001 | B1 |
6287339 | Vazquez et al. | Sep 2001 | B1 |
6331189 | Wolinsky et al. | Dec 2001 | B1 |
6350278 | Lenker et al. | Feb 2002 | B1 |
6364905 | Simpson | Apr 2002 | B1 |
6379383 | Palmaz et al. | Apr 2002 | B1 |
6401720 | Stevens et al. | Jun 2002 | B1 |
6406493 | Quijano | Jun 2002 | B1 |
6409759 | Peredo | Jun 2002 | B1 |
6454799 | Schreck | Sep 2002 | B1 |
6458153 | Bailey | Oct 2002 | B1 |
6530952 | Vesely | Mar 2003 | B2 |
6533807 | Wolinsky et al. | Mar 2003 | B2 |
6537310 | Palmaz | Mar 2003 | B1 |
6569196 | Vesely | Mar 2003 | B1 |
6562069 | Cai et al. | May 2003 | B2 |
6572652 | Shaknovich | Jun 2003 | B2 |
6582462 | Andersen et al. | Jun 2003 | B1 |
6589279 | Anderson | Jul 2003 | B1 |
6613079 | Wolinsky et al. | Sep 2003 | B1 |
6635085 | Caffey et al. | Oct 2003 | B1 |
6652555 | Van Tassel et al. | Nov 2003 | B1 |
6682558 | Tu | Jan 2004 | B2 |
6682559 | Myers | Jan 2004 | B2 |
6695865 | Boyle | Feb 2004 | B2 |
6719787 | Cox | Apr 2004 | B2 |
6730118 | Spenser et al. | May 2004 | B2 |
6733525 | Yang | May 2004 | B2 |
6736827 | McAndrew | May 2004 | B1 |
6755855 | Yurek et al. | Jun 2004 | B2 |
6767362 | Schreck | Jul 2004 | B2 |
6790229 | Berreklouw | Sep 2004 | B1 |
6805711 | Quijano | Oct 2004 | B2 |
6830584 | Seguin | Dec 2004 | B1 |
6830585 | Artof | Dec 2004 | B1 |
6830586 | Quijano | Dec 2004 | B2 |
6849085 | Marton | Feb 2005 | B2 |
6875231 | Anduiza et al. | Apr 2005 | B2 |
6893460 | Spenser et al. | May 2005 | B2 |
6908481 | Cribier | Jun 2005 | B2 |
6936066 | Palmaz | Aug 2005 | B2 |
6942682 | Vrba et al. | Sep 2005 | B2 |
7018406 | Seguin et al. | Mar 2006 | B2 |
7025773 | Gittings et al. | Apr 2006 | B2 |
7025780 | Gabbay | Apr 2006 | B2 |
7041132 | Quijano et al. | May 2006 | B2 |
7044966 | Svanidze | May 2006 | B2 |
7101396 | Artof et al. | Sep 2006 | B2 |
7141064 | Scott | Nov 2006 | B2 |
7179290 | Cao | Feb 2007 | B2 |
7195641 | Palmaz | Mar 2007 | B2 |
7198646 | Figulla et al. | Apr 2007 | B2 |
7201772 | Schwammenthal et al. | Apr 2007 | B2 |
7217287 | Wilson | May 2007 | B2 |
7252682 | Seguin | Aug 2007 | B2 |
7276078 | Spenser | Oct 2007 | B2 |
7285130 | Austin | Oct 2007 | B2 |
7316712 | Peredo | Jan 2008 | B2 |
7318278 | Zhang | Jan 2008 | B2 |
7320704 | Lashinski et al. | Jan 2008 | B2 |
7320705 | Quintessenza | Jan 2008 | B2 |
7329278 | Seguin et al. | Feb 2008 | B2 |
7329279 | Haug et al. | Feb 2008 | B2 |
7331991 | Kheradvar | Feb 2008 | B2 |
7331993 | White | Feb 2008 | B2 |
7338484 | Schoon | Mar 2008 | B2 |
7361189 | Case | Apr 2008 | B2 |
7371258 | Woo | May 2008 | B2 |
7374571 | Pease | May 2008 | B2 |
7377938 | Sarac et al. | May 2008 | B2 |
7381218 | Schreck | Jun 2008 | B2 |
7381219 | Salahieh et al. | Jun 2008 | B2 |
7393358 | Malewicz | Jul 2008 | B2 |
7393360 | Spenser et al. | Jul 2008 | B2 |
7399315 | Iobbi | Jul 2008 | B2 |
7402171 | Osborne | Jul 2008 | B2 |
7410499 | Bicer | Aug 2008 | B2 |
7416530 | Turner | Aug 2008 | B2 |
7422603 | Lane | Sep 2008 | B2 |
7431733 | Knight | Oct 2008 | B2 |
7435257 | Lashinski | Oct 2008 | B2 |
7445632 | McGuckin, Jr. et al. | Nov 2008 | B2 |
7455689 | Johnson | Nov 2008 | B2 |
7470284 | Lambrecht | Dec 2008 | B2 |
7470285 | Nugent et al. | Dec 2008 | B2 |
7473275 | Marquez | Jan 2009 | B2 |
7500989 | Solem | Mar 2009 | B2 |
7503929 | Johnson | Mar 2009 | B2 |
7503930 | Sharkawy | Mar 2009 | B2 |
7510572 | Gabbay | Mar 2009 | B2 |
7510575 | Spenser et al. | Mar 2009 | B2 |
7513909 | Lane | Apr 2009 | B2 |
7534261 | Friedman | May 2009 | B2 |
7556646 | Yang et al. | Jul 2009 | B2 |
7578828 | Gittings et al. | Aug 2009 | B2 |
7585321 | Cribier | Sep 2009 | B2 |
7591848 | Allen | Sep 2009 | B2 |
7618446 | Andersen et al. | Nov 2009 | B2 |
7481838 | Carpentier | Dec 2009 | B2 |
7625403 | Krivoruchko | Dec 2009 | B2 |
7632296 | Malewicz | Dec 2009 | B2 |
7682390 | Seguin | Mar 2010 | B2 |
7780726 | Seguin | Aug 2010 | B2 |
7846203 | Cribier | Dec 2010 | B2 |
7846204 | Letac et al. | Dec 2010 | B2 |
7896915 | Guyenot et al. | Mar 2011 | B2 |
7914575 | Guyenot et al. | Mar 2011 | B2 |
7947075 | Goetz et al. | May 2011 | B2 |
7959672 | Salahieh et al. | Jun 2011 | B2 |
8002825 | Letac et al. | Aug 2011 | B2 |
8052749 | Salahieh | Nov 2011 | B2 |
8057540 | Letac et al. | Nov 2011 | B2 |
8092518 | Schreck | Jan 2012 | B2 |
8092520 | Quadri | Jan 2012 | B2 |
8603159 | Seguin | Dec 2013 | B2 |
8628571 | Hacohen | Jan 2014 | B1 |
8845721 | Braido et al. | Sep 2014 | B2 |
20010007956 | Letac et al. | Jul 2001 | A1 |
20010011187 | Pavcnik et al. | Aug 2001 | A1 |
20020177894 | Acosta et al. | Nov 2002 | A1 |
20030023300 | Bailey et al. | Jan 2003 | A1 |
20030028213 | Thill | Feb 2003 | A1 |
20030040792 | Gabbay | Feb 2003 | A1 |
20030042186 | Boyle | Mar 2003 | A1 |
20030109924 | Cribier | Jun 2003 | A1 |
20030114913 | Spenser et al. | Jun 2003 | A1 |
20040019374 | Hojeibane et al. | Jan 2004 | A1 |
20040044361 | Atsumi | Jan 2004 | A1 |
20040044400 | Cheng et al. | Mar 2004 | A1 |
20040082989 | Cook et al. | Apr 2004 | A1 |
20040093063 | Wright | May 2004 | A1 |
20040106976 | Bailey et al. | Jun 2004 | A1 |
20040186563 | Lobbi | Sep 2004 | A1 |
20040186565 | Schreck | Sep 2004 | A1 |
20040210304 | Seguin et al. | Oct 2004 | A1 |
20040254594 | Alfaro | Dec 2004 | A1 |
20040260389 | Case et al. | Dec 2004 | A1 |
20050043759 | Chanduszko | Feb 2005 | A1 |
20050043790 | Seguin | Feb 2005 | A1 |
20050070794 | Deal et al. | Mar 2005 | A1 |
20050075731 | Artof et al. | Apr 2005 | A1 |
20050113910 | Paniagua et al. | May 2005 | A1 |
20050137681 | Shoemaker | Jun 2005 | A1 |
20050137688 | Salahieh et al. | Jun 2005 | A1 |
20050137696 | Salahieh et al. | Jun 2005 | A1 |
20050137702 | Haug et al. | Jun 2005 | A1 |
20050154446 | Phillips et al. | Jul 2005 | A1 |
20050182483 | Osborne | Aug 2005 | A1 |
20050240262 | White | Oct 2005 | A1 |
20050267523 | Devellian et al. | Dec 2005 | A1 |
20050283231 | Haug et al. | Dec 2005 | A1 |
20050288706 | Widomski et al. | Dec 2005 | A1 |
20060004442 | Spenser | Jan 2006 | A1 |
20060122692 | Gilad et al. | Jun 2006 | A1 |
20060149360 | Schwammenthal et al. | Jul 2006 | A1 |
20060161248 | Case | Jul 2006 | A1 |
20060195180 | Kheradvar et al. | Aug 2006 | A1 |
20060259136 | Nguyen et al. | Nov 2006 | A1 |
20060259137 | Artof | Nov 2006 | A1 |
20060265056 | Nguyen et al. | Nov 2006 | A1 |
20060270958 | George | Nov 2006 | A1 |
20060271166 | Thill et al. | Nov 2006 | A1 |
20060287717 | Rowe | Dec 2006 | A1 |
20070016283 | Greenhalgh et al. | Jan 2007 | A1 |
20070060998 | Butterwick et al. | Mar 2007 | A1 |
20070061002 | Paul, Jr. et al. | Mar 2007 | A1 |
20070118210 | Pinchuk | May 2007 | A1 |
20070198097 | Zegdi | Aug 2007 | A1 |
20070213813 | Von Segesser | Sep 2007 | A1 |
20070225801 | Drews | Sep 2007 | A1 |
20070239265 | Birdsall | Oct 2007 | A1 |
20070239269 | Dolan | Oct 2007 | A1 |
20070244546 | Francis | Oct 2007 | A1 |
20070282436 | Pinchuk | Dec 2007 | A1 |
20080125859 | Salahieh | Feb 2008 | A1 |
20080071361 | Tuval | Mar 2008 | A1 |
20080071362 | Tuval | Mar 2008 | A1 |
20080071366 | Tuval | Mar 2008 | A1 |
20080071368 | Tuval et al. | Mar 2008 | A1 |
20080077234 | Styre | Mar 2008 | A1 |
20080140189 | Nguyen | Jun 2008 | A1 |
20080161909 | Kheradvar | Jul 2008 | A1 |
20080177381 | Navia | Jul 2008 | A1 |
20080195199 | Kheradvar | Aug 2008 | A1 |
20080208327 | Rowe | Aug 2008 | A1 |
20080228263 | Ryan | Sep 2008 | A1 |
20080234814 | Salahieh | Sep 2008 | A1 |
20080255660 | Guyenot et al. | Oct 2008 | A1 |
20080269878 | Iobbi | Oct 2008 | A1 |
20080275549 | Rowe | Nov 2008 | A1 |
20080275550 | Kheradvar | Nov 2008 | A1 |
20090005863 | Goetz et al. | Jan 2009 | A1 |
20090164006 | Seguin et al. | Jun 2009 | A1 |
20090171432 | Von Segesser et al. | Jul 2009 | A1 |
20090171447 | Von Segesser et al. | Jul 2009 | A1 |
20090276040 | Rowe et al. | Nov 2009 | A1 |
20090287299 | Tabor et al. | Nov 2009 | A1 |
20100168839 | Braido et al. | Jul 2010 | A1 |
20110022157 | Essinger et al. | Jan 2011 | A1 |
20110040374 | Goetz et al. | Feb 2011 | A1 |
20110224780 | Tabor et al. | Sep 2011 | A1 |
20120101571 | Thambar et al. | Apr 2012 | A1 |
20120101572 | Kovalsky et al. | Apr 2012 | A1 |
20120116496 | Chuter et al. | May 2012 | A1 |
20120123529 | Levi et al. | May 2012 | A1 |
20120172982 | Stacchino et al. | Jul 2012 | A1 |
20120303116 | Gorman, III | Nov 2012 | A1 |
Number | Date | Country |
---|---|---|
2006328896 | Jun 2007 | AU |
2007294199 | Mar 2008 | AU |
2009200985 | Apr 2009 | AU |
2634358 | Jun 2007 | CA |
2657839 | Mar 2008 | CA |
2659690 | Mar 2008 | CA |
20003874 | May 2000 | DE |
19857887 | Jul 2000 | DE |
102005003632 | Aug 2006 | DE |
202007005491 | Jun 2007 | DE |
202007005491 | Jul 2007 | DE |
0328401 | Aug 1989 | EP |
0 592 410 | Apr 1994 | EP |
0 657 147 | Jun 1995 | EP |
0 696 447 | Feb 1996 | EP |
0 943 302 | Sep 1999 | EP |
1 093 771 | Apr 2001 | EP |
1 251 797 | Oct 2002 | EP |
1 264 582 | Dec 2002 | EP |
1262201 | Dec 2002 | EP |
1 267 753 | Jan 2003 | EP |
1598031 | Nov 2005 | EP |
1598031 | Nov 2005 | EP |
1968491 | Sep 2008 | EP |
2033593 | Mar 2009 | EP |
2047824 | Apr 2009 | EP |
2059192 | May 2009 | EP |
2074964 | Jul 2009 | EP |
2949292 | Dec 2015 | EP |
2949292 | May 2016 | EP |
2874812 | Mar 2006 | FR |
WO-1998029057 | Jul 1998 | WO |
WO-2000028922 | May 2000 | WO |
WO-2000047139 | Aug 2000 | WO |
WO-2000053122 | Sep 2000 | WO |
WO-2001049213 | Jul 2001 | WO |
WO-2001062189 | Aug 2001 | WO |
WO-2002067782 | Sep 2002 | WO |
WO-2002076349 | Oct 2002 | WO |
2003007795 | Jan 2003 | WO |
WO-2003003949 | Jan 2003 | WO |
WO-2003047468 | Jun 2003 | WO |
WO-2003063729 | Aug 2003 | WO |
03092554 | Nov 2003 | WO |
WO-2005070343 | Aug 2005 | WO |
WO-2005102015 | Nov 2005 | WO |
2006058163 | Jun 2006 | WO |
WO-2006068944 | Jun 2006 | WO |
WO-2006076890 | Jul 2006 | WO |
WO-2006083763 | Aug 2006 | WO |
WO-2006086135 | Aug 2006 | WO |
2006093795 | Sep 2006 | WO |
2006124649 | Nov 2006 | WO |
2006127765 | Nov 2006 | WO |
WO-2006127765 | Nov 2006 | WO |
2007071436 | Jun 2007 | WO |
2006086736 | Aug 2007 | WO |
2007071436 | Nov 2007 | WO |
2008028569 | Mar 2008 | WO |
2008040555 | Apr 2008 | WO |
2008070442 | Jun 2008 | WO |
2009024859 | Feb 2009 | WO |
2009053497 | Apr 2009 | WO |
WO-2009024859 | May 2009 | WO |
2009091509 | Jul 2009 | WO |
2010045297 | Apr 2010 | WO |
2010049160 | May 2010 | WO |
2010083558 | Jul 2010 | WO |
2010045238 | Oct 2010 | WO |
2011051043 | May 2011 | WO |
2011057087 | May 2011 | WO |
2013033791 | Mar 2013 | WO |
2013134214 | Sep 2013 | WO |
2014072439 | Jul 2014 | WO |
Entry |
---|
Liu et al. Effect of Fiber Orientation on the Stress Distribution within a Leaflet of a Polymer Composite Heart Valve in the Closed Position. Journal of Biomechanics. 2007 (40): 1099-1106. |
Mack, M.J., “Minimally invasive cardiac surgery”, Surg Endosc, (2006) 20:S488-S492. |
Walther et al., “Transapical approach for sutureless stent-fixed aortic valve implantation: experimental results”, European Journal of Cardiao-thoriacic Surgery, 29 (2006), 703-708. |
Dewey et al., “Transapical aortic valve implantation: an animal feasability study”, The annals of thoracic surgery, (2006):82:110-116. |
Akins, et al., “Risk of Preoperative Valve Replacement for Failed Mitral and Aortic Bioprothesese”, Ann Thorac Surg (1998), 65:1545-52. |
Ma,et al., “Double-crowned valved stents for off-pump mitral valvle replacement”, European Journal of Cardio-Thoracic Surgery (2005), 28-194-199. |
Weerasinghe, et al., “First Redo Heart Valve Replacement: A 10-Year Analysis”, Circulation (1999), 99:655-658. |
International Search Report for International Application No. PCT/EP2008/064558, date of completion of report, Mar. 18, 2009 and Written Opinion of the International Searching Authority for International Application No. PCT/EP2008/064558. |
Communication from the European Examining Division dated Mar. 28, 2014 for corresponding European Patent Application No. 08806901.8. |
Pawelec-Wojtalk, “Closure of Left Ventricle Perforation with the Use of Muscular VSD Occluder”, European Journal of Cardio-Thoracic Surgery (2005), 27:714-716. |
Examination Report, Application No. EP06841127.1, dated Feb. 6, 2009. |
European Search Report, EP09154935.2, dated May 29, 2009. |
Australian Examination Report, Application No. AU 2009200985, dated Mar. 4, 2010. |
European Examination Report, Application No. EP07818037.9, dated Aug. 11, 2009. |
International Preliminary Report, Application No. PCT/EP2006/012455, dated Jun. 24, 2008. |
International Search Report for PCT/EP2006/012455, dated Sep. 27, 2007. |
International Preliminary Report on Patentability, Application No. PCT/EP2007/07413, dated Mar. 10, 2009. |
Partial International Search Report for International Application No. PCT/EP2014/055044, filed Mar. 13, 2014. |
ISR & WO for PCT/162008/002180, mailed Apr. 15, 2009. |
IPRP for PCT/IB2008/002180, issued Feb. 24, 2010. |
ISR for PCT/EP2010/057798, mailed Sep. 12, 2010. |
IPRP for PCT/EP2010/057798, mailed Dec. 6, 2011. |
ISR for PCT/EP2007/007413, mailed Jan. 28, 2008. |
IPRP for PCT/EP2007/007413, issued Mar. 10, 2009. |
IPRP issued May 8, 2012 for PCT/EP2010/063306. |
ISR mailed Feb. 17, 2012 for PCT/EP2011/066677. |
IPRP issued Mar. 26, 2013 for PCT/EP2011/066677. |
ISR mailed Apr. 17, 2014 for PCT/EP2013/073318. |
Ratner, et al., Biomaterials in Science, An Introduction to Materials in Medicine, 1996 (excerpt). |
Frenot, et al., Polymer nanofibers assembled by electrospinning, Current Opinion in Colloid and Interface Sci., 8, 64-75, 2003. |
Gupta, Medical Textile Structures: An Overview, MDDI Medical Device and Diagnostic Industry News Products and Suppliers, Medical Plastics and Biomaterials Magazine, 1-10, 1998. |
Lawler et al., Textiles Technology, Edexcel, Heinemann Educational Publishers, 2002. |
McGrath, et al., Early-Phase Events with the Mitroflow Pericardial Valve, Texas Heart Institute Journal, 15, 148-151, 1988. |
Mirjalili, et al., Review for application of electrospinning and electrospun nanofibers technology in textile industry, Journal Nanostruct Chem, 6, 207-213, 2016. |
Moazami, et al., Transluminal Aortic Vale Placement, A Feasibility Study With a Newly Designed Collapsible Aortic Valve, ASAIO Journal, 42, M381-M385, 1996. |
Operath, Lotus Illustrated Dictionary of Textile, 2006. |
Rivers, et al., JoAnn Your Guide to Creativity, 322, Sep. 4, 2014. |
SewBasic, 34 Essential Skills for Sewing with Confidence, 2002. |
Stecker, The Fashion Design Manual, 1996. |
Theron et al., Electrostatic field-assisted alignment of electrospun nanofibres, Nanotechnology, Institute of Physics Publishing, 12, 384-390, 2001. |
Tsai, et al., Investigation of the Fiber, Bulk, and Surface Properties of Meltblown and Electrospun Polymeric Fabrics, INJ Fall 2004. |
Vidyasagar, Textile Spinning and Weaving Technology, Encyclopaedia of Textiles, Mittal Publications, New Delhi, 2000. |
Wilson, et al., A Self-Expanding Bifurcated Endovascular Graft for Abdominal Aortic Aneurysm Repair, An Initial Study in a Canine Model, 42(5), M386-M393, 1996. |
Vinzenzi-Hombach, Interventionelle Kardiologie, Angiologie und Kardiovaskularchirurgie, Technik, Klink, Therapie, Schattauer, pp. 1-687, 2001. |
Number | Date | Country | |
---|---|---|---|
20140039614 A1 | Feb 2014 | US |
Number | Date | Country | |
---|---|---|---|
60965780 | Aug 2007 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 13598918 | Aug 2012 | US |
Child | 13861782 | US | |
Parent | 13351438 | Jan 2012 | US |
Child | 13598918 | US | |
Parent | 13150723 | Jun 2011 | US |
Child | 13351438 | US | |
Parent | 12674112 | US | |
Child | 13150723 | US |