CA2477646A1 - Device, assembly and method for mitral valve repair - Google Patents

Device, assembly and method for mitral valve repair Download PDF

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Publication number
CA2477646A1
CA2477646A1 CA002477646A CA2477646A CA2477646A1 CA 2477646 A1 CA2477646 A1 CA 2477646A1 CA 002477646 A CA002477646 A CA 002477646A CA 2477646 A CA2477646 A CA 2477646A CA 2477646 A1 CA2477646 A1 CA 2477646A1
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CA
Canada
Prior art keywords
elongated member
orientation
coronary sinus
valve annulus
mitral valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002477646A
Other languages
French (fr)
Other versions
CA2477646C (en
Inventor
Mark L. Mathis
Gregory D. Nieminen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cardiac Dimensions Pty Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2477646A1 publication Critical patent/CA2477646A1/en
Application granted granted Critical
Publication of CA2477646C publication Critical patent/CA2477646C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A61F2/2451—Inserts in the coronary sinus for correcting the valve shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S623/00—Prosthesis, i.e. artificial body members, parts thereof, or aids and accessories therefor
    • Y10S623/902—Method of implanting
    • Y10S623/904—Heart

Abstract

A mitral valve therapy device (30) effects the condition of a mitral valve annulus (20) of a heart (10). The device (30) includes an elongated member (32) dimensioned to be placed in the coronary sinus (14) of the heart (10) adjacent the mitral valve annulus (20). The elongated member (32) is flexibl e when placed in the heart (10) in a first orientation to position the device (30) in the coronary sinus (14) adjacent the mitral valve annulus (20) and relatively inflexible when rotated into a second orientation after the devic e (30) is positioned in the coronary sinus (14) adjacent to the mitral valve annulus (20) to substantially straighten and increase the radius of curvatur e of the mitral valve annulus (20).

Claims (26)

1. A device that effects the condition of a mural valve annulus of a heart comprising an elongated member dimensioned to be placed in the coronary sinus of the heart adjacent the mitral valve annulus, the elongated member having a relatively low resistance to flexure in a first direction and a relatively high resistance to flexure n a second direction.
2. The device of claim 1 wherein the first and second directions lie in the same plane.
3. The device of claim 1 wherein the elongated member includes a first longitudinal side facing the first direction and a first plurality of notches formed in the first longitudinal side to provide the elongated member with the relatively low resistance to flexure in the first direction.
4. The device of claim 3 wherein the elongated member includes a second longitudinal side facing the second direction and a second plurality of notches formed in the second longitudinal side to render the elongated member stable when flexed in the second direction.
5. The device of claim 4 wherein the first plurality of notches are larger than the second plurality of notches.
6. The device of claim 4 wherein the first and second longitudinal sides are opposite each other.
7. The device of claim 1 wherein the elongated member has first and second ends and wherein the device includes an anchor at each end that fix the device in the coronary sinus.
8. The device of claim 7 wherein each anchor anchors the device against longitudinal movement and rotational movement.
9. A device that effects the condition of a mural valve annulus of a heart comprising an elongated member dimensioned to be placed in the coronary sinus of the heart adjacent the mitral valve annulus, the elongated member being flexible when placed in the heart in a first orientation to position the device in the coronary sinus adjacent the mitral valve annulus and relatively inflexible when rotated into a second orientation after the device is positioned in the coronary sinus adjacent to the mitral valve annulus.
10. The device of claim 9 wherein the elongated member is bent to conform to the shape of the coronary sinus when in the first orientation.
11. The device of claim 10 wherein the elongated member has a first radius of curvature when in the first orientation, a second radius of curvature when in the second orientation, and wherein the first radius of curvature is less than the second radius of curvature.
12. The device of claim 9 wherein the elongated member has first and second ends and wherein the device includes an anchor at each end that fix the device in the coronary sinus.
13. The device of claim 12 wherein each anchor anchors the device against longitudinal movement and rotational movement.
14. A method of effecting the condition of a mitral valve annulus of a heart, the method including the steps of:
providing a mitral valve annulus therapy device including an elongated member that is flexible when placed in the heart in a first orientation and relatively inflexible when rotated into a second orientation;
advancing the device into the coronary sinus of the heart with the device in the first orientation until the device is adjacent the mitral valve annulus within the coronary sinus; and rotating the device into the second orientation.
15. The method of claim 14 including the further step of anchoring the device in the coronary sinus.
16. The method of claim 15 wherein the anchoring step includes anchoring the device against rotational movement.
17. The method of claim 14 wherein the device has a first radius of curvature conforming to the radius of curvature of the mitral valve annulus when in the first orientation and a second radius of curvature greater than the first radius of curvature when in the second orientation.
18. An assembly that effects the condition of a mitral valve annulus of a heart comprising:
an elongated member dimensioned to be placed in the coronary sinus of the heart adjacent to the mitral valve annulus, the elongated member being flexible when placed in the heart in a first orientation to conform to the coronary sinus and relatively inflexible when rotated into a second orientation; and a push member configured to be releasably coupled to the elongated member that advances the elongated member into the coronary sinus adjacent to the mitral valve annulus.
19. The assembly of claim 18 wherein the push member rotates the elongated member into the second orientation upon rotation of the push member.
20. The assembly of claim 18 further comprising a U-joint that releasably couples the elongated member to the push member.
21. The assembly of claim 18 further including a flexible catheter having a lumen that receives the elongated member and push member to guide the elongated member into the coronary sinus.
22. The assembly of claim 21 wherein the elongated member is rotatable into the second orientation upon rotation of the catheter.
23. The assembly of claim 18 wherein the push member is releasable from the elongated member with proximal movement of the catheter.
24. The assembly of claim 18 wherein the elongated member has a first radius of curvature when in the first orientation, a second radius of curvature when in the second orientation, and wherein the first radius of curvature is less than the second radius of curvature.
25. The assembly of claim 18 wherein the elongated member has first and second ends and further includes an anchor at each end that fix the device in the coronary sinus.
26. The assembly of claim 25 wherein each anchor anchors the device against longitudinal movement and rotational movement.
CA2477646A 2002-03-11 2003-03-07 Device, assembly and method for mitral valve repair Expired - Lifetime CA2477646C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/095,507 2002-03-11
US10/095,507 US6797001B2 (en) 2002-03-11 2002-03-11 Device, assembly and method for mitral valve repair
PCT/US2003/006778 WO2003077800A1 (en) 2002-03-11 2003-03-07 Device, assembly and method for mitral valve repair

Publications (2)

Publication Number Publication Date
CA2477646A1 true CA2477646A1 (en) 2003-09-25
CA2477646C CA2477646C (en) 2012-11-13

Family

ID=28038895

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2477646A Expired - Lifetime CA2477646C (en) 2002-03-11 2003-03-07 Device, assembly and method for mitral valve repair

Country Status (8)

Country Link
US (2) US6797001B2 (en)
EP (1) EP1482868B1 (en)
AT (1) ATE422346T1 (en)
AU (1) AU2003224656B2 (en)
CA (1) CA2477646C (en)
DE (1) DE60326124D1 (en)
ES (1) ES2321920T3 (en)
WO (1) WO2003077800A1 (en)

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US6797001B2 (en) 2004-09-28
ES2321920T3 (en) 2009-06-15
EP1482868A1 (en) 2004-12-08
EP1482868A4 (en) 2006-08-30
US20050065598A1 (en) 2005-03-24
US7364588B2 (en) 2008-04-29
ATE422346T1 (en) 2009-02-15
EP1482868B1 (en) 2009-02-11
WO2003077800A1 (en) 2003-09-25
CA2477646C (en) 2012-11-13
AU2003224656B2 (en) 2008-05-15
DE60326124D1 (en) 2009-03-26
AU2003224656A1 (en) 2003-09-29
US20030171806A1 (en) 2003-09-11

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