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1. WO2009052309 - MEDICAL SHEET

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[ EN ]

What is claimed is:

1. A medical sheet for implantation into a patient, the medical sheet comprising;
a) a planar member having a thickness, first and second expandable sides, first and second retractable sides and a longitudinal axis extending between the first and the second retractable sides, the planar member having a first smaller area position for insertion into the patient, and a second larger area position for
implantation into the patient;
b) the planar member comprising a plurality of adjacent strips extending parallel to each other along the longitudinal axis of the planar member, the strips
comprising a plurality of longitudinal struts and a plurality of loops connecting adjacent struts;
c) a plurality of bridges connecting the adjacent strips to one another at bridge-to- loop connection points, wherein the bridge-to-loop connection points for each bridge are separated angularly with respect to the longitudinal axis; and
d) a plurality of amorphic circles, wherein some of the amorphic circles are
attached to at least some of the plurality of loops.

2. The medical sheet according to claim 1 wherein the loops comprise curved
substantially semi-circular sections having centers and the bridge-to-loop
connection points are offset from the centers of the loops.

3. The medical sheet according to claim 1 wherein at least some of the plurality of amorphic circles have concentric holes.

4. The medical sheet according to claim 1 wherein some of the plurality of amorphic circles are attached to the plurality of bridges.

5. The medical sheet according to claim 1 wherein the bridges, loops and struts have widths which are less than the thickness of the planar member.

6. The medical sheet according to claim 1 wherein some of the plurality of amorphic circles are attached to some of the plurality of struts.

7. The medical sheet according to claim 1 wherein the amorphic circles have
rounded edges.

8. A medical sheet for implantation into a patient, the medical sheet comprising;
a) a planar member made from a super elastic Nickel Titanium alloy having a thickness, first and second expandable sides, first and second retractable sides and a longitudinal axis extending between the first and the second retractable sides, the planar member having a first smaller surface area position for insertion into the patient, and a second larger surface area position for implantation into the patient;
b) the planar member comprising a plurality of adjacent strips parallel to each other along the longitudinal axis of the planar member, the strips comprising a plurality of longitudinal struts and a plurality of loops connecting adjacent struts; c) a plurality of bridges connecting adjacent strips to one another at bridge-to-loop connection points, wherein the number of bridge-to-loop connection points being less than the total number of loops on the strips, wherein the bridge-to-loop
connection points for each bridge are separated angularly with respect to the longitudinal axis; and
d) a plurality of amorphic circles that are attached to at least some of the plurality of loops.

9. The medical sheet according to claim 8 wherein the loops comprise curved
substantially semi-circular sections having centers, the bridges being connected to the loops at bridge-to-loop connection points having centers, the centers of the points are offset from the centers of the loops.

10. The medical sheet according to claim 8 wherein the medical sheet is made from an alloy comprising from about 50.5 percent to about 60 percent Nickel and the remainder comprising Titanium.

11. The medical sheet according to claim 10 wherein the medical sheet has an Af temperature between about 24° to about 37° Celsius.

12. The medical sheet according to claim 8 wherein the bridges, the loops and the struts have widths which are less than the thickness of the planar member.

13. The medical sheet according to claim 8 wherein at least some of the plurality of amorphic circles have concentric holes.

14. The medical sheet according to claim 8 wherein some of the plurality of amorphic circles are attached to the plurality of bridges.

15. The medical sheet according to claim 8 wherein some of the plurality of amorphic circles are attached to at least some of the plurality of struts.

16. The medical sheet according to claim 8 wherein the amorphic circles have
rounded edges.

17. A medical sheet for implantation into a patient, the medical sheet comprising;
a) a planar member made from a super elastic alloy comprising from about 50.5 percent to about 60 percent Nickel and the remainder comprising Titanium and having an Af temperature between about 24° to about 37° Celsius;
b) the planar member having a thickness first and second expandable sides, first and second retractable sides and a longitudinal axis extending between the first and the second retractable sides, the planar member having a first smaller surface area position for insertion into the patient and a second larger surface area
position for implantation into the patient;

c) the planar member comprising a plurality of adjacent strips parallel to each other along the longitudinal axis of the planar member, the strips comprising a plurality of longitudinal struts and a plurality of loops connecting adjacent struts; and
d) a plurality of bridges connecting adjacent strips to one another at bridge-to- loop connection points, wherein the number of bridge-to-loop connection points is less than the total number of loops on a hoop, wherein the bridge-to-loop
connection points for each bridge are separated angularly with respect to the
longitudinal axis, the bridges having a non-linear curved profile between the
bridge-to-loop connection points; and
e) a plurality of amorphic circles that are attached to at least some of the plurality of loops.

18. The medical sheet according to claim 17 wherein some of the plurality of
amorphic circles are attached to some of the plurality of bridges.

19. The medical sheet according to claim 17 wherein some of the plurality of
amorphic circles are attached to some of the plurality of struts.

20. The medical sheet according to claim 17 wherein the amorphic circles have
rounded edges.