US20070100441A1 - Saddle-shaped mitral valve annuloplasty prostheses with asymmetry, and related methods - Google Patents

Saddle-shaped mitral valve annuloplasty prostheses with asymmetry, and related methods Download PDF

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Publication number
US20070100441A1
US20070100441A1 US11/585,483 US58548306A US2007100441A1 US 20070100441 A1 US20070100441 A1 US 20070100441A1 US 58548306 A US58548306 A US 58548306A US 2007100441 A1 US2007100441 A1 US 2007100441A1
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Prior art keywords
prosthesis
ring
axis
reference point
segments
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Abandoned
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US11/585,483
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English (en)
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Irving Kron
Melinda Kovach
Timothy McGill
Nathaniel Zenz--Olson
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St Jude Medical LLC
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St Jude Medical LLC
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Priority to US11/585,483 priority Critical patent/US20070100441A1/en
Assigned to ST. JUDE MEDICAL, INC. reassignment ST. JUDE MEDICAL, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KRON, IRVING L., ZENZ-OLSON, NATHANIEL ZACHARIAS, KOVACH, MELINDA KAYE, MCGILL, TIMOTHY JOHN
Publication of US20070100441A1 publication Critical patent/US20070100441A1/en
Priority to US12/870,252 priority patent/US8123802B2/en
Assigned to ST. JUDE MEDICAL, LLC reassignment ST. JUDE MEDICAL, LLC MERGER AND CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ST. JUDE MEDICAL, INC., VAULT MERGER SUB, LLC
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
    • A61F2/2445—Annuloplasty rings in direct contact with the valve annulus
    • A61F2/2448—D-shaped rings

Definitions

  • This invention relates generally to medical devices, and in particular, to annuloplasty rings and other similar prostheses for reshaping the mitral valve annulus of a patient's heart.
  • the invention also relates to methods of using such prostheses.
  • the mitral annulus represents the junction of the fibrous and muscular tissue that joins the left atrium and the left ventricle.
  • the mitral valve is a bicuspid valve having a relatively large anterior leaflet that coapts or meets with a smaller posterior leaflet.
  • FIG. 1 illustrates a normal mitral heart valve 14 from the left atrium from a surgical view of the heart.
  • the anterior portion A of the mitral annulus 15 forms a part of the “cardiac skeleton” and is bounded by anterior and posterior commissures 16 , 17 .
  • the anterior commissure 16 and posterior commissure 17 are generally at the junction points of the anterior leaflet 18 and the posterior leaflet 19 .
  • the junction points are also known as the anterolateral commissure 16 and posteromedial commissure 17 .
  • the posterior portion P of the mitral annulus 15 consists mainly of muscular tissue of the outer wall of the heart.
  • posterior leaflet 19 is divided into three scallops indicated as P 1 , P 2 , and P 3 in sequence from the anterior commissure 16 counterclockwise to the posterior commissure 17 .
  • Anterior leaflet 18 is also divided into three areas indicated as A 1 , A 2 , and A 3 in sequence from the anterior commissure 16 clockwise to the posterior commissure 17 .
  • Ischemic heart disease can cause a mitral valve to become incompetent.
  • regions of the left ventricle lose their contractility and dilate.
  • the left ventricle enlarges and becomes more round in shape, going from a conical shape to more of a spherical shape.
  • papillary muscles 23 , 25 are displaced down (inferiorly) and away from each other. The change in the location of the papillary muscles increases the distance between the papillary muscles and the mitral valve annulus.
  • chordae tendonae 21 This creates tension on the chordae tendonae 21 that connect the posterior papillary muscle 23 to the mitral valve leaflets in the A 2 , A 3 , P 2 , and P 3 regions of the annulus. Since the chordae tendonae 21 do not change their length significantly, the chordae 21 tend to pull or “tether” the mitral leaflets. In severe cases of left ventricle dilation, the tethering of the chordae prevents the leaflets from coming together or coapting correctly, resulting in mitral valve regurgitation. In addition to remodeling of the left ventricle, the mitral valve tends to flatten during ventricular systole instead of achieving its natural saddle shape. This also disrupts the natural coaptation of the mitral leaflets and the natural distribution of stresses over the leaflets and chordae tendonae.
  • IMR ischemic mitral regurgitation
  • the entire circumference of the mitral annulus may dilate.
  • the posterior portion of the annulus may dilate more than the anterior portion because the anterior portion has more support from the heart's fibrous skeleton.
  • there may be an asymmetric dilation of the posteromedial annulus which is indicated at A 2 , A 3 , P 2 , and P 3 .
  • the IMR may be caused by tethering of leaflet segments connected to the posteromedial papillary muscle. This is often in the A 2 , A 3 , P 2 , and P 3 segments of the mitral valve.
  • this type of mitral valve regurgitation is surgically repaired with an annuloplasty ring (which may be either a complete ring or a C-shaped “ring” with an opening along the anterior side).
  • the repair restores proper leaflet coaptation by decreasing the diameter of the mitral valve annulus, thereby mitigating the effect of the tethering of the chordae and the effects of dilation of the annulus.
  • One surgical correction for IMR is to tether the posteromedial annulus of the mitral valve to the posteromedial papillary muscle. This papillary muscle relocation procedure reduces the chordal tension and allows the leaflets to coapt more effectively.
  • patient conditions like those described above are treated by applying an annuloplasty prosthesis (ring or C) that is shaped to push down the mitral valve annulus in the vicinity of the posterior commissure relative to other portions of the annulus.
  • the prosthesis also dips down adjacent the anterior commissure, but it pushes down the portion of the annulus that is adjacent the posterior commissure farther than it dips down adjacent the anterior commissure.
  • the effect of the prosthesis on the two commissure regions of the annulus is therefore asymmetrical.
  • a mitral valve annuloplasty ring in accordance with the invention includes A 1 , A 2 , A 3 , P 3 , P 2 , and P 1 segments connected to one another in a closed loop series in the order just mentioned. Each of these ring segments is configured for placement adjacent the portion of a mitral valve annulus that is adjacent the corresponding A 1 , A 2 , A 3 , P 3 , P 2 , or P 1 segment of the mitral valve leaflets.
  • the ring has an anterior-to-posterior (“AP”) axis that extends across the ring from its anterior (A 1 /A 2 /A 3 ) side to its posterior (P 1 /P 2 /P 3 ) side.
  • AP anterior-to-posterior
  • the AP axis is perpendicular to a line between two reference points that are spaced from one another along the anterior side of the ring.
  • the AP axis also bisects this line.
  • These two reference points are located along the anterior side of the ring so that the AP axis also bisects a greatest width dimension of the ring, which greatest width dimension is measured perpendicular to the AP axis.
  • a third reference point is located along the posterior side of the ring to one side of the AP axis (e.g., the side that is toward or closer to the anterior commissure).
  • Each of the above-mentioned three reference points is spaced from the AP axis by 0.5 mm. These three reference points lie in and thereby define a reference plane.
  • a point on the ring between the A 1 and P 1 segments, and another point on the ring between the A 3 and P 3 segments are both displaced from the reference plane to the same side of that plane.
  • the amount of displacement from the reference plane to the point between the A 3 and P 3 segments is greater than the amount of displacement from the reference plane to the point between the A 1 and P 1 segments.
  • an annuloplasty prosthesis in accordance with the invention may have a C shape.
  • This C shape can be similar to a complete ring in accordance with the invention, but with a portion of the anterior side of the ring omitted.
  • the gap in the C that results from this omission is generally located approximately centrally on the anterior side of the C structure.
  • the anterior side of the C may be thought of as defining a trajectory that includes both the anterior structure (i.e., comparable to at least portions of the A 1 and A 3 segments of a comparable ring) and a smooth continuation, across the gap, of both of those anterior structural segments.
  • This trajectory follows a path through the gap that would be occupied by material of the prosthesis if the C were instead a complete ring in accordance with the invention.
  • the summary description provided above for the various reference points and the reference plane of a complete ring applies again to such a C, with the exception that the first and second reference points need to be described as being on the above-mentioned trajectory because they may lie either in anterior material of the prosthesis (if the gap is relatively small) or in the gap (if the gap is relatively large).
  • FIG. 1 is a simplified or schematic view of a normal mitral heart valve as viewed from the left atrium during surgery.
  • FIG. 2 is a simplified or schematic view of mitral heart valve structures that have been dissected vertically at the anterolateral commissure and splayed open.
  • FIG. 3 is a simplified “plan” view of an illustrative embodiment of a mitral valve annuloplasty ring in accordance with the invention.
  • FIG. 3 shows the ring having the same orientation as FIG. 1 shows a mitral valve with which the ring may be used, but the scale of FIG. 3 is larger than the scale of FIG. 1 .
  • FIG. 4 is a simplified elevational view taken along the line 4 - 4 in FIG. 3 .
  • FIG. 5 is a simplified elevational view taken along the line 5 - 5 in FIG. 3 .
  • the scale of FIG. 5 is larger than the scale of FIG. 3 .
  • FIG. 6 is similar to FIG. 3 , but shows an illustrative embodiment of a C-shaped mitral valve annuloplasty prosthesis in accordance with the invention.
  • FIG. 7 is similar to FIG. 6 , but shows another illustrative embodiment of a C-shaped mitral valve annuloplasty prosthesis in accordance with the invention.
  • FIG. 8 is a view taken along the line 8 - 8 in FIG. 7 .
  • FIGS. 3-5 An illustrative embodiment of a mitral valve annuloplasty ring 100 , in accordance with the invention, that is better suited to treating patient conditions like those described in the background section of this specification is shown in FIGS. 3-5 .
  • FIG. 3 shows ring 100 in the same orientation as FIG. 1 shows a mitral valve to which ring 100 may be applied.
  • FIG. 3 shows that ring 100 has a generally D shape.
  • the relatively straight side of the D (toward the top in FIG. 3 ) is the anterior side of the ring in use.
  • the curved side of the D (toward the bottom in FIG. 3 ) is the posterior side of the ring in use.
  • ring 100 includes anterior segments A 1 , A 2 , and A 3 , and posterior segments P 1 , P 2 , and P 3 .
  • Each of these segments is radially adjacent but beyond or outside the corresponding portion of the mitral valve leaflets when the ring is in use (i.e., implanted in a patient adjacent the annulus of the patient's mitral valve).
  • anterior ring segment A 1 will be adjacent the base of the A 1 segment of anterior leaflet 18 when ring 100 is in use.
  • posterior ring segment P 1 will be adjacent the base of the P 1 segment of posterior leaflet 19 when ring 100 is in use.
  • the same correspondence between ring segments and leaflet segments applies to all ring segments all the way around ring 100 .
  • ring 100 includes a closed loop series of segments A 1 , A 2 , A 3 , P 3 , P 2 , and P 1 , in that order.
  • each of these reference points (A 3 /P 3 , A 1 /P 1 , R 1 , R 2 , and R 3 ) is located on an axis that runs annularly around the ring and that passes coaxially through the center of the core material of the ring.
  • the point A 3 /P 3 is the point at which ring segments A 3 and P 3 join or meet one another. This point is adjacent the posterior commissure 17 ( FIG. 1 ) of the mitral valve when ring 100 is in use.
  • FIG. 3 thus tends to show the approximate locations of the various ring segments and points like A 3 /P 3 and A 1 /P 1 . The locations of these features are, of course, generally as shown in FIG. 3 .)
  • point A 1 /P 1 Another significant point on ring 100 is point A 1 /P 1 . This is the point at which segments A 1 and P 1 join or meet one another. When ring 100 is in use, point A 1 /P 1 is adjacent the anterior commissure 16 ( FIG. 1 ) of the mitral valve.
  • Ring 100 has a so-called anterior-posterior (“AP”) axis, which extends across the ring from its anterior side to its posterior side.
  • the AP axis is located so that it is perpendicular to and bisects a line between reference points R 1 and R 2 .
  • Reference points R 1 and R 2 are located along the anterior side of the ring so that the AP axis bisects a greatest width dimension W of the ring, which greatest width dimension is measured perpendicular to the AP axis.
  • Anterior-side reference point R 1 is spaced to one side of the AP axis by 0.5 mm.
  • Anterior-side reference point R 2 is spaced to the other side of the AP axis by 0.5 mm.
  • Reference point R 3 is on the posterior side of the ring and is spaced to one side (e.g., the R 1 side) of the AP axis by 0.5 mm.
  • Reference points R 1 -R 3 lie in and thereby define the location of a so-called reference plane.
  • the “greatest width dimension” W is the perpendicular distance between two tangents to the ring that are both parallel to the AP axis and that are as far apart as possible on opposite sides of the ring. It is possible that there may be some distance across the ring, measured in some other way, that is greater than W, but that is irrelevant to the present invention and not what is meant by the “greatest width dimension” as used herein.)
  • FIG. 4 shows that ring 100 is not planar.
  • each of anterior ring segments A 1 , A 2 , and A 3 is substantially out of sight behind the corresponding posterior ring segment P 1 , P 2 , and P 3 in FIG. 4 .
  • the reference plane referred to in the preceding paragraph is identified in FIG. 4 (and FIG. 5 ) by the reference number 110 .
  • FIG. 4 shows ring segments A 1 and P 1 curving down and away from reference plane 110 as one proceeds to the left from a medial portion of what is visible in FIG. 4 .
  • FIG. 4 also shows ring segments A 3 and P 3 curving down and away from plane 110 as one proceeds to the right from the medial portion of FIG. 4 .
  • points A 1 /P 1 and A 3 /P 3 are not per se visible in FIG. 4 , their approximate left-right locations are indicated with arrows labeled A 1 /P 1 and A 3 /P 3 , respectively. It will be apparent from this depiction that point A 3 /P 3 is lower relative to plane 110 than point A 1 /P 1 . Thus dimension D 3 (the distance of point A 3 /P 3 below plane 110 ) is greater than dimension D 1 (the distance of point A 1 /P 1 below plane 110 ). Ring 100 is thus asymmetrical from left to right (as viewed in FIG. 4 ) in this respect.
  • FIG. 5 shows another view of ring 100 on an even larger scale than FIGS. 3 and 4 (see FIG. 3 for the orientation of FIG. 5 relative to FIGS. 3 and 4 ).
  • FIG. 5 shows all the features of ring 100 that have been previously described.
  • FIG. 5 again shows that the side of ring 100 that includes point A 3 /P 3 is displaced farther from plane 110 than the side of the ring that includes point A 1 /P 1 . This is again shown in FIG. 5 by the fact that dimension D 3 is greater than dimension D 1 .
  • the displacement at point A 1 /P 1 from reference plane 110 is not necessarily the greatest displacement of that side of the ring from that plane.
  • Another point (like 120 in FIG. 5 ) along P 1 may actually have greater displacement from plane 110 than point A 1 /P 1 .
  • point A 3 /P 3 may not have that side's greatest displacement from plane 110 .
  • Another point 130 along P 3 may have even greater displacement from plane 110 . Nevertheless, it remains the case that point A 3 /P 3 has greater displacement (D 3 ) from plane 110 than point A 1 /P 1 has.
  • Local maximum displacement point 130 (if different from point A 3 /P 3 , as it is in ring 100 ) also has greater displacement from plane 110 than local maximum displacement point 120 (again assumed to be different than point A 1 /P 1 , as in ring 100 ).
  • point A 3 /P 3 is also has greater displacement from plane 110 than any point (even point 120 ) on the other side of the ring.
  • the displacement from plane 110 that is reached on the A 3 /P 3 side of the ring is greater than the displacement that is reached on the A 1 /P 1 side of the ring.
  • the above-mentioned saddle shape is thus somewhat asymmetrical, with the A 3 /P 3 side of the ring being more depressed than the A 1 /P 1 side of the ring.
  • the greater “downward” displacement of the side of ring 100 that includes point A 3 /P 3 is of significant benefit in compensating for patient conditions like those described in the background section of this specification. Those conditions tend to downwardly displace tissue structures 23 (and their associated structures 21 ) more than tissue structures 25 (and their associated structures 21 ) (see again FIG. 2 ). Extra downward depression of the mitral valve annulus radially out from leaflet segments A 3 and P 3 (and including posterior commissure 17 ) may beneficially compensate for this problem.
  • ring 100 Such extra downward depression of this portion of the valve annulus is provided by ring 100 , which has greater displacement from plane 110 on its side that includes segments A 3 and P 3 and point A 3 /P 3 than on its other side (i.e., its side that includes segments A 1 and P 1 and point A 1 /P 1 ).
  • mitral valve annuloplasty prostheses are not always complete rings like ring 100 .
  • a portion of the anterior side of what would otherwise be a complete ring can be omitted to produce a C-shaped prosthesis.
  • Examples of such Cs are shown in FIGS. 6 and 7 .
  • the C 200 in FIG. 6 has a relatively small gap 402 on the anterior side.
  • the C 300 in FIG. 7 has a relatively large gap 402 on the anterior side.
  • the anterior gap in FIG. 7 is approximately the maximum acceptable gap. Any amount of anterior-side gap (up to the approximate amount shown in FIG. 7 ) can be employed in C-shaped prostheses.
  • the present invention can be applied to C-shaped prostheses like those exemplified by FIGS. 6 and 7 .
  • the portions of such a C-shaped prosthesis that are present in the C are shaped and disposed in three dimensions as though they were the corresponding portions of a complete ring in accordance with the invention (see also FIG. 8 , which is another view of illustrative C shown in FIG. 7 ).
  • a C-shaped prosthesis in accordance with the invention is shaped as though made from a complete ring in accordance with the invention, but with some of the anterior of the complete ring omitted to produce the C.
  • trajectory 400 spans the entire anterior side of each C. Where the anterior side has structure or material (i.e., to the left and right of anterior gap 402 ), trajectory 400 passes coaxially and centrally along that structure. In gap 402 (where each C has no actual structure or material) trajectory 400 continues smoothly out of the material to one side of the gap, across the gap, and into the material on the other side of the gap. In other words, trajectory 402 follows the same path that the anterior side of the prosthesis 200 or 300 would have if it were a complete ring in accordance with the invention.
  • FIGS. 6 and 7 show that the same reference points R 1 through R 3 that are descried above in connection with ring 100 can be used again to define a reference plane 410 (see FIG. 8 ) that is useful in describing the shape of Cs in accordance with the invention.
  • reference points R 1 and R 2 are on anterior trajectory 400 .
  • reference points R 1 and R 2 may be either in anterior material of the C (e.g., as in the case of FIG. 6 ) or in the anterior gap 402 (e.g., as in the case of FIG. 7 ).
  • the anterior trajectory concept makes it possible to describe the locations of reference points R 1 and R 2 generically, regardless of the size of gap 402 .
  • Cs in accordance with the invention e.g., a C like 200 or 300
  • Cs in accordance with the invention including the following features: A 1 , P 1 , P 2 , P 3 , and A 3 segments connected in series in that order; an anterior gap 402 ; an anterior trajectory 400 as described above; an anterior-to-posterior axis AP perpendicular to and bisecting a line between reference points R 1 and R 2 , both of which are located along anterior trajectory 400 ; a greatest width dimension W measured perpendicular to the AP axis, reference points R 1 and R 2 and the AP axis being located so that the AP axis bisects the greatest width dimension; each of reference points R 1 and R 2 being spaced from the AP axis by 0.5 mm; reference point R 3 on the posterior side of the C, spaced to one side of the AP axis by 0.5 mm, and defining with reference points R 1 and R 2 a reference plane 410 ; both of
  • a wide range of materials are well known for making annuloplasty prostheses, and any of the known materials that are suitable for making prostheses in accordance with this invention can be used.
  • suitable materials include titanium, a titanium alloy, Elgiloy (a cobalt-nickel alloy), Nitinol (a nickel-titanium alloy), stainless steel, a cobalt-chromium alloy, a ceramic, and a polymer (e.g., ultra-high-molecular weight polyethylene, polyurethane, or the like).
  • the prostheses of this invention can have any desired degree of rigidity, consistent with the objective of this invention for the prosthesis to apply significant forces in particular ways to various parts of the mitral valve annulus.
  • the prostheses of this invention can be rigid or substantially rigid.
  • the prostheses of this invention may be capable of some plastic deformation if the surgeon wants to modify the prosthesis shape somewhat for a particular patient's anatomy.
  • the prosthesis should not be plastically deformable by the patient's anatomy alone, but the prosthesis may be capable of some elastic deformation in response to the patient's anatomy, including changes in anatomical shapes as a result of body functions such as heartbeats. Nevertheless, a prosthesis that is capable of such flexibility should always be resiliently trying to return to an unloaded shape like that shown in the FIGS. herein. In that way, even a prosthesis that is capable of some flexibility is always applying the kind of therapeutic force to the mitral valve annulus that is desired in accordance with the invention.
  • the prostheses of this invention may also include other known annuloplasty prosthesis features.
  • the prostheses of this invention may be wrapped in or otherwise associated with fabric or other materials through which sutures can be passed as part of the process of implanting the prosthesis in a patient.

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  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
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  • Absorbent Articles And Supports Therefor (AREA)
US11/585,483 2005-10-26 2006-10-24 Saddle-shaped mitral valve annuloplasty prostheses with asymmetry, and related methods Abandoned US20070100441A1 (en)

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US12/870,252 US8123802B2 (en) 2005-10-26 2010-08-27 Saddle-shaped mitral valve annuloplasty prostheses with asymmetry, and related methods

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US11/585,483 US20070100441A1 (en) 2005-10-26 2006-10-24 Saddle-shaped mitral valve annuloplasty prostheses with asymmetry, and related methods

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US20080086203A1 (en) * 2006-10-06 2008-04-10 Roberts Harold G Mitral and tricuspid annuloplasty rings
US20080275551A1 (en) * 2007-05-01 2008-11-06 Edwards Lifesciences Corporation Inwardly-bowed tricuspid annuloplasty ring
US20090192606A1 (en) * 2008-01-25 2009-07-30 Medtronic, Inc. Holder Devices for Annuloplasty Devices Having a Plurality of Anterior-Posterior Ratios
US20100076549A1 (en) * 2008-09-19 2010-03-25 Edwards Lifesciences Corporation Annuloplasty Ring Configured to Receive a Percutaneous Prosthetic Heart Valve Implantation
US20100076548A1 (en) * 2008-09-19 2010-03-25 Edwards Lifesciences Corporation Prosthetic Heart Valve Configured to Receive a Percutaneous Prosthetic Heart Valve Implantation
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US20100161046A1 (en) * 1999-01-26 2010-06-24 Edwards Lifesciences Corporation Holder for flexible heart valve
US20100179651A1 (en) * 2009-01-13 2010-07-15 Hosam Fawzy Multi-planar tricuspid annuloplasty ring
WO2012017455A1 (en) * 2010-08-02 2012-02-09 Ruggero De Paulis Annuloplasty band for a simplified approach to mitral valvuloplasty for degenerative diseases
US8197538B2 (en) 2006-06-02 2012-06-12 Medtronic, Inc. Annuloplasty prosthesis with in vivo shape identification and related methods of use
US8932350B2 (en) 2010-11-30 2015-01-13 Edwards Lifesciences Corporation Reduced dehiscence annuloplasty ring
US9364322B2 (en) 2012-12-31 2016-06-14 Edwards Lifesciences Corporation Post-implant expandable surgical heart valve configurations
US10456246B2 (en) 2015-07-02 2019-10-29 Edwards Lifesciences Corporation Integrated hybrid heart valves
US10543085B2 (en) 2012-12-31 2020-01-28 Edwards Lifesciences Corporation One-piece heart valve stents adapted for post-implant expansion
US10695170B2 (en) 2015-07-02 2020-06-30 Edwards Lifesciences Corporation Hybrid heart valves adapted for post-implant expansion
CN111529132A (zh) * 2015-06-09 2020-08-14 爱德华兹生命科学有限责任公司 不对称的二尖瓣瓣环成形带
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ITMI20011012A1 (it) 2001-05-17 2002-11-17 Ottavio Alfieri Protesi anulare per valvola mitrale
US7935145B2 (en) 2001-05-17 2011-05-03 Edwards Lifesciences Corporation Annuloplasty ring for ischemic mitral valve insuffuciency
US6908482B2 (en) 2001-08-28 2005-06-21 Edwards Lifesciences Corporation Three-dimensional annuloplasty ring and template
US7367991B2 (en) 2001-08-28 2008-05-06 Edwards Lifesciences Corporation Conformal tricuspid annuloplasty ring and template
US7951196B2 (en) 2004-04-29 2011-05-31 Edwards Lifesciences Corporation Annuloplasty ring for mitral valve prolapse
US7842085B2 (en) 2005-03-23 2010-11-30 Vaso Adzich Annuloplasty ring and holder combination
EP1959866B1 (de) 2005-12-15 2019-03-06 Georgia Tech Research Corporation Vorrichtungen und systeme zur steuerung der position der papillarmuskeln
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CA2669195C (en) 2005-12-15 2013-06-25 Georgia Tech Research Corporation Systems and methods to control the dimension of a heart valve
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