CA2507449A1 - Delayed memory device - Google Patents

Delayed memory device Download PDF

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Publication number
CA2507449A1
CA2507449A1 CA002507449A CA2507449A CA2507449A1 CA 2507449 A1 CA2507449 A1 CA 2507449A1 CA 002507449 A CA002507449 A CA 002507449A CA 2507449 A CA2507449 A CA 2507449A CA 2507449 A1 CA2507449 A1 CA 2507449A1
Authority
CA
Canada
Prior art keywords
reshaping
distal
proximal
ball
fixing
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
CA002507449A
Other languages
French (fr)
Other versions
CA2507449C (en
Inventor
Jan Otto Solem
Per-Ola Kimblad
Randolf Von Oepen
Gerd Seibold
Kenneth Michlitsch
Suk-Woo Ha
Karl-Ludwig Eckert
Bodo Quint
Stevan Nielsen
Ib Joergensen
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.)
Edwards Lifesciences AG
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
Priority claimed from SE0200073A external-priority patent/SE524709C2/en
Application filed by Individual filed Critical Individual
Priority to CA2688796A priority Critical patent/CA2688796A1/en
Publication of CA2507449A1 publication Critical patent/CA2507449A1/en
Application granted granted Critical
Publication of CA2507449C publication Critical patent/CA2507449C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • A61F2/2478—Passive devices for improving the function of the heart muscle, i.e. devices for reshaping the external surface of the heart, e.g. bags, strips or bands
    • A61F2/2481—Devices outside the heart wall, e.g. bags, strips or bands
    • 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
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • 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
    • A61F2/26—Penis implants
    • 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
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2002/043—Bronchi
    • 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
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A61F2002/072—Encapsulated stents, e.g. wire or whole stent embedded in lining
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2002/826—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents more than one stent being applied sequentially
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2002/828—Means for connecting a plurality of stents allowing flexibility of the whole structure
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
    • A61F2002/8483—Barbs
    • 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
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0004—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof bioabsorbable

Abstract

A device for reshaping a cardiac valve (26), which is elongate and has such dimensions as to be insertable into a cardiac vessel (24). The device has tw o states, in a first state (K) of which the device has a shape that is adaptab le to the shape of the vessel (24), and to the second state (k') of which the device is transferable from said first state (K). Further, the device comprises a fixing means (22,23;22a,23a) for fixing the ends of the device within the vessel (24), when the device is first positioned therein, a shape - changing member (20;20a) for transferring the device to the second state (K' ) by reshaping it, and a delay means (21;21a) for delaying said reshaping unti l the fixing of the ends of the device has been reinforced by keeping said device in said first state (K) until the delay means (21;21a) is resorbed.</ SDOAB>

Claims (37)

1. A device for reshaping a cardiac valve (26), said device being elongate and having such dimensions as to be insertable into a cardiac vessel (24) and having two states, in a first state (K) of which the device has a shape that is adaptable to the shape of the vessel (24), and to the second state (K') of which the device is transferable from said first state (K), said device comprising a fixing means (22,23;22a,23a) for fixing the ends of the device within the vessel (24), when the device is first positioned therein, a shape-changing member (20;20a) for transferring the device to the second state (K') by reshaping it, and a delay means (21;21a) for delaying said reshaping until the fixing of the ends of the device has been reinforced, wherein said delay means delays said reshaping by keeping said device in said first state (K) until the delay means (21;21a) is resorbed.
2. The device according to claim 1, wherein said delay means (21;21a) comprises a resorbable sheath being arranged to enclose said shape-changing member.
3. The device according to claim 1 or 2, wherein said fixing means (22,23;22a,23a) is arranged to expand against the wall of the vessel (24) when first positioned therein.
4. The device according to any one of claims 1 to 3, wherein said fixing means (22,23;22a,23a) is arranged to grow into the wall of the vessel (24), whereby said fixing of the ends of the device is reinforced.
5. The device according to any one of the preceding claims, wherein said fixing means (22,23;22a,23a) comprises hook means, by means of which said fixing of the ends of the device is reinforced.
6. The device according to any one of the preceding claims, wherein said fixing means (22,23;22a,23a) comprises a self-expandable stent at each end of the device.
7. The device according to any one of the preceding claims, wherein said shape-changing member (20;20a) comprises a shape memory material providing said reshaping of the device.
8. The device according to claim 7, wherein said shape-changing member (20;20a) comprises Nitinol providing said reshaping of the device.
9. The device according to any one of the preceding claims, wherein said reshaping of the device comprises shortening of the device.
10. The device according to any one of the preceding claims, wherein said device is used for treatment of mitral annulus dilatation.
11. The device according to claim 10, wherein said vessel (24) is the coronary sinus.
12. The device according to claim 11, wherein said reshaping of the device is used for reducing the radius of curvature of the coronary sinus.
13. A method for reshaping a cardiac valve (26), comprising the steps of inserting an elongate device into a cardiac vessel (24), fixing the ends of the device within the vessel (24), reinforcing said fixing of the ends of the device, reshaping the device, and delaying said reshaping by a delay means (21;21a) so that the step of reinforcing said fixing is performed before the step of reshaping the device.
14. The method according to claim 13, wherein said step of reinforcing said fixing comprises providing growth of the ends of said device into the wall of the vessel (24).
15. The method according to claim 13 or 14, wherein a shape memory material is used in the device for said step of reshaping the device.
16. The method according to claim 15, wherein Nitinol is used in the device for said step of reshaping the device.
17. The method according to any one of claims 13 to 16, wherein said step of reshaping the device comprises the step of shortening the device.
18. The method according to any one of claims 13 to 17, wherein the method is used for treatment of mitral annulus dilatation.
19. The method according to claim 18, wherein said device is inserted into the coronary sinus in the vicinity of the posterior leaflet of the mitral valve.
20. The method according to claim 19, wherein said reshaping is used for reducing the curvature of the coronary sinus and thereby reducing the radius of circumference of the mitral valve annulus.
21. Apparatus for treating mitral annulus dilatation, the apparatus comprising:
a proximal stent section;
a distal anchor; and means for drawing the distal anchor towards the proximal stent section.
22. The apparatus of claim 21 wherein the proximal stent further comprises a flange configured to abut the coronary ostium.
23. The apparatus of claim 21 wherein the distal anchor comprises a distal stent section.
24. The apparatus of claim 21 wherein the distal anchor comprises a Tee-shape adapted to be inserted into the left ventricular myocardium.
25. The apparatus of claim 24 wherein the means for drawing comprises a wire, the apparatus further comprising a coil section that disposed around the wire to redistribute a compressive load created by the wire.
26. The apparatus of claim 21 wherein the means for drawing comprises a central section connecting the proximal stent section to the distal anchor, the central section having a contracted state and a radially expanded state.
27. The apparatus of claim 26 wherein the means for drawing further comprises one or more biodegradable structures disposed on the central section.
28. The apparatus of claim 27 wherein the proximal stent section is configured to become biologically anchored to a vessel before the one or more biodegradable structures degrade.
29. The apparatus of claim 27 wherein the central section comprises a shape memory material.
30. The apparatus of claim 28 wherein the distal anchor comprises a distal stent section that is configured to become biologically anchored to a vessel before the one or more biodegradable structures degrade.
31. Apparatus for treating mitral annulus dilatation, the apparatus comprising:
a catheter having proximal and distal ends and a lumen extending therethrough;
a balloon affixed to the catheter, the balloon being in fluid communication with the lumen and having contracted and deployed states, wherein the balloon comprises a predetermined shape in the deployed state;
and a stent having contracted and deployed states, wherein the stent is plastically deformable by the balloon and substantially conforms to the predetermined shape of the balloon in the deployed state, wherein the stent is configured to apply a compressive load on the mitral valve annulus in the deployed state.
32. The apparatus of claim 31 wherein the balloon comprises a curved shape in the deployed state.
33. The apparatus of claim 32 wherein the balloon further comprises an anchor element disposed within the balloon and configured to maintain the shape of the balloon in the deployed state.
34. Apparatus for treating mitral annulus dilatation, the apparatus comprising:
a proximal ball segment comprising a proximal ball having a lumen, a distal ball having a lumen, and a hollow rod extending therebetween;
a distal ball segment comprising a proximal ball having a lumen, a distal ball having a lumen, and a hollow rod extending therebetween; and a connecting segment disposed therebetween, the connecting segment having a plurality of sockets, wherein the distal ball of the proximal ball segment and the proximal ball of the distal ball segment are configured to telescope and rotate relative to one another within the sockets.
35. The apparatus of claim 34 further comprising a plurality of interlocking segments coupled to the proximal and distal ball segments, wherein each interlocking segment comprises a proximal section having a socket, a distal section having a ball and a lumen extending therethrough, and a hollow central section extending therebetween.
36. The apparatus of claim 34 further comprising a cinch wire having proximal and distal ends and a ball coupled to the distal end, wherein the cinch wire is configured to extend longitudinally through the lumens of the proximal and distal ball segments.
37. The apparatus of claim 34 further comprising a push rod configured to engage a proximal ball segment.
CA2507449A 2001-12-28 2002-12-20 Delayed memory device Expired - Lifetime CA2507449C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2688796A CA2688796A1 (en) 2002-01-11 2002-12-20 Delayed memory device

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US34412101P 2001-12-28 2001-12-28
US60/344121 2001-12-28
SE0200073A SE524709C2 (en) 2002-01-11 2002-01-11 Device for delayed reshaping of a heart vessel and a heart valve
SE0200073-5 2002-01-11
US10/141,348 US7192443B2 (en) 2002-01-11 2002-05-09 Delayed memory device
US10/141348 2002-05-09
PCT/EP2002/014655 WO2003055417A1 (en) 2001-12-28 2002-12-20 Delayed memory device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2688796A Division CA2688796A1 (en) 2002-01-11 2002-12-20 Delayed memory device

Publications (2)

Publication Number Publication Date
CA2507449A1 true CA2507449A1 (en) 2003-07-10
CA2507449C CA2507449C (en) 2012-12-18

Family

ID=27354792

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2688796A Abandoned CA2688796A1 (en) 2002-01-11 2002-12-20 Delayed memory device
CA2507449A Expired - Lifetime CA2507449C (en) 2001-12-28 2002-12-20 Delayed memory device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2688796A Abandoned CA2688796A1 (en) 2002-01-11 2002-12-20 Delayed memory device

Country Status (7)

Country Link
US (2) US8075616B2 (en)
EP (4) EP2181669A3 (en)
AT (1) ATE462378T1 (en)
AU (2) AU2002360066B2 (en)
CA (2) CA2688796A1 (en)
DE (1) DE60235834D1 (en)
WO (1) WO2003055417A1 (en)

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EP2181668A1 (en) 2010-05-05
AU2009200373A1 (en) 2009-02-19
EP1458313A1 (en) 2004-09-22
US20050080483A1 (en) 2005-04-14
EP2181670A2 (en) 2010-05-05
DE60235834D1 (en) 2010-05-12
EP2181670A3 (en) 2011-05-25
US20060184230A1 (en) 2006-08-17
EP1458313B1 (en) 2010-03-31
WO2003055417A1 (en) 2003-07-10
EP2181669A3 (en) 2011-11-23
CA2688796A1 (en) 2003-07-10
US8075616B2 (en) 2011-12-13
AU2002360066A1 (en) 2003-07-15
EP2181669A2 (en) 2010-05-05
ATE462378T1 (en) 2010-04-15
AU2002360066B2 (en) 2008-11-06
CA2507449C (en) 2012-12-18

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