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1. WO1997016119 - SYSTEME D'OBTURATION SEPTALE DE TYPE PARAPLUIE A CENTRAGE AUTOMATIQUE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

What is claimed is:
1. A septal closure device, comprising:
a proximal occluder including a plurality of outwardly extending proximal arms supporting a proximal occlusion shell;
a distal occluder including a plurality of outwardly extending distal arms
supporting a distal occlusion shell; and
a centering mechanism secured between said proximal occluder and said distal occluder to center said proximal and said distal occluders about a defect, wherein said centering mechanism comprises;
at least one centering member secured between at least one of said proximal arms and at least one of said distal arms.

2. The closure device according to claim 1 , wherein said at least one centering member is made from an elastomeric material.

3. The closure device according to claim 1, wherein said at least one centering member is a spring.

4. The closure device according to claim 1, wherein said centering member is a suture.

5. The closure device according to claim 1, wherein said at least one centering member is secured between a proximal arm and an adjacent distal arm.

6. The closure device according to claim 1, wherein said at least one centering members is secured between a proximal arm and a diametrically opposed distal arm.

7. The closure device according to claim 2, wherein said at least one elastomeric centering member is secured between a proximal arm and an adjacent distal arm.

8. The closure device according to claim 2, wherein said at least one elastomeric centering member is secured between a proximal arm and a diametrically opposed distal arm.

9. The closure device according to claim 3, wherein said spring is secured between a
proximal arm and an adjacent distal arm.

10 The closure device according to claim 3, wherein said spring is secured between a
proximal arm and a diametrically opposed distal arm

11 The closure device according to claim 1 , wherein said at least one centering member is a shape memory material.

12 The closure device according to claim 11, wherein said proximal arms extend outwardly from,
said proximal occluder center point to support said proximal occlusion shell and said distal arms extend outwardly from said distal occluder center point to support said distal occlusion shell,
said at least one centering member being secured between said at least one proximal arm and said at least one distal arm at a position radially spaced from said
proximal and distal occluder center points.

13 The closure device according to claim 11 wherein said at least one proximal arm is
adjacent said at least one distal arm.

14 The closure device according to claim 12 wherein said at least one proximal arm is
diametrically opposed to said at least one distal arm

15 The closure device according to claim 4, wherein each of said proximal arms includes a resilient shoulder coil adjacent said center point of said proximal occluder, a resilient elbow coil radially spaced from said shoulder coil and a resilient wrist coil radially spaced from said elbow coil and each of said distal arms includes a resilient shoulder coil adjacent said center point of said distal occluder, a resilient elbow coil radially spaced from
shoulder coil and a resilient wrist coil radially spaced from said elbow coil.

16 The closure device according to claim 15, wherein said suture is passed through said
shoulder coils and said elbow coils to center said proximal occluder and said distal
occluder about a defect.

17 The closure device according to claim 15, wherein said proximal occluder and said distal occluder each include at least three outwardly extending arms, said suture being first passed through said shoulder coil of a first proximal arm and subsequently threaded through said elbow coil of said first proximal arm, said suture then being passed through said elbow coil of an adjacent distal arm and threaded alternately through said elbow coils of said remaining proximal and distal arms until said suture is looped through said elbow coil of said first proximal arm for a second time, then passing said suture through said shoulder coil of said first proximal arm for a second time leaving both ends of said suture accessible.

18. The closure device according to claim 15, wherein said suture is passed through said
shoulder coils and said wrist coils to center said proximal occluder and said distal occluder about a defect.

19. A closure device according to claim 15, wherein said proximal occluder and said distal occluder each include at least three outwardly extending arms, said suture being first
passed through said shoulder coil of a first proximal arm and subsequently threaded
through said wrist coil of said first proximal arm, said suture then being passed through said wrist coil of an adjacent distal arm and threaded alternately through said wrist coils of said remaining proximal and distal arms until said suture is looped through said wrist coil of said first proximal arm for a second time, then passing said suture through said shoulder coil of said first proximal arm for a second time leaving both ends of said suture
accessible.

20. A method of repairing a septal defect comprising the steps of: :
providing a septal closure device, comprising:
a proximal occluder including a plurality of outwardly extending proximal arms supporting a proximal occlusion shell;
a distal occluder including a plurality of outwardly extending distal arms
supporting a distal occlusion shell; and
a centering device secured between said proximal occluder and said distal occluder to center said proximal and said distal occluders about a defect, within said centering device comprises at least one centering member secured between at least one of said
proximal arms and at least one of said distal arms;
positioning said distal occluder through said septal defect; and opening said distal occluder and said proximal occluder such that each of said proximal and distal occluders occlude and septal defect.

AMENDED CLAIMS
[received by the Intemational Bureau on 18 March 1997 (18.03.97); original claims 1-20 replaced by amended claims 1-20 (4 pages)] 1. A septal defect closure device, comprising:
a proximal occluder including a plurality of outwardly extending proximal arms supporting a proximal occlusion shell;
a distal occluder including a plurality of outwardly extending distal arms supporting a distal occlusion shell; and
a centering mechanism secured between said proximal occluder and said distal occluder to center said proximal and said distal occluders about a defect, wherein said centering mechanism comprises at least two centering members, each of said centering members secured between a separate one of said proximal arms and a corresponding one of said distal arms.

2. The closure device according to claim 1 wherein at least one of said centering members is made from an elastomeric material.

3. The closure device according to claim 1 , wherein at least one of said centering members is a spring.

4. The closure device according to claim 1 , wherein at least one of said centering members is a suture.

5. The closure device according to claim 1 , wherein each of said at least two centering members is secured between a separate one of said proximal arms and an adjacent one of said distal arms.

6. The closure device according to claim 1 , wherein each of said at least two centering members is secured between a separate one of said proximal arms and a diametrically opposed one of said distal arms.

7. The closure device according to claim 2, wherein said at least one elastomeric centering member is secured between one of said proximal arms and an adjacent one of said distal arms.

8. The closure device according to claim 2, wherein said at least one elastomeric centering member is secured between one of said proximal arms and a diametrically opposed one of said distal arms.

9. The closure device according to claim 3, wherein said at least one spring centering member is secured between one of said proximal arms and an adjacent one of said distal arms.

10. The closure device according to claim 3, wherein said at least one spring centering member is secured between one of said proximal arms and a diametrically opposed one of said distal arms.

11. The closure device according to claim 1 , wherein at least one of said centering members is a shape memory material.

12. The closure device according to claim 11, wherein said proximal arms extend outwardly from said proximal occluder center point to support said proximal occlusion shell and said distal arms extend outwardly from said distal occluder center point to support said distal occlusion shell and wherein said at least one memory material centering member is secured between one of said proximal arms and one of said distal arms at a position radially spaced from said proximal and distal occluder center points.

13. The closure device according to claim 12 where said one of said proximal arms is adjacent said one of said distal arms.

14. The closure device according to claim 12 wherein said one of said proximal arms is diametrically opposed to said one of said distal arms.

15. The closure device according to claim 4, wherein each of said proximal arms includes a resilient shoulder coil adjacent the center point of said proximal occluder, a resilient elbow coil radially spaced from said shoulder coil and a resilient wrist coil radially spaced from said elbow coil and each of said distal arms includes a resilient shoulder coil adjacent the center point of said distal occluder, a resilient elbow coil radially spaced from shoulder coil and resilient wrist coil radially spaced from said elbow coil.

16. The closure device according to claim 15, where said suture centering member is passed through said proximal and distal shoulder coils and said proximal and distal elbow coils to center said proximal occluder and said distal occluder about a defect.

17. The closure device according to claim 15, wherein said proximal occluder and said distal occluder each include at least three outwardly extending arms, of said suture centering member being first passed through said shoulder coil of a first proximal arm and subsequently threaded through said elbow coil of said first proximal arm, said suture centering member then being passed through said elbow coil of an adjacent distal arm and threaded alternately through said elbow coils of said remaining proximal and distal arms until said suture centering member is looped through said elbow coil of said first proximal arm for a second time, then passing said suture centering member through said shoulder coil of said first proximal arm for a second time leaving both ends of said suture centering member accessible.

18. The closure device according to claim 15, wherein said suture centering member is passed through said shoulder coils and said wrist coils to center said proximal occluder and said distal occluder about a defect.

19. The closure device according to claim 15, wherein said proximal occluder and said distal occluder each include at least three outwardly extending arms, said suture centering member being first passed through said shoulder coil of a first proximal arm and subsequently threaded through said wrist coil of said first proximal arm, said suture centering member then being passed through said wrist coil of an adjacent distal arm and threaded alternately through said wrist coils of said remaining proximal and distal arms until said suture centering member is looped through said wrist coil of said first proximal arm for a second time, then passing said suture centering member through said shoulder coil of said first proximal arm for a second time leaving both ends of said suture centering member accessible.

20. A method of repairing a septal defect comprising the steps of:
(a) providing a septal closure device, comprising
a proximal occluder including a plurality of outwardly
extending proximal arms supporting a proximal occlusion shell, a distal occluder including a plurality of outwardly extending
distal arms supporting a distal occlusion shell, and
a centering mechanism secured between said proximal
occluder and said distal occluder to center said proximal and said distal occluders about a defect, wherein said centering mechanism comprises at least two centering members, each of said centering members secured between a separate one of said proximal arms
and a corresponding one of said distal arms;
(b) positioning said distal occluder and said proximal occluder on different sides of said septal defect; and
(c) opening said distal occluder and said proximal occluder such that each of said proximal and distal occluders occlude said septal defect.