FRACTURE RESISTANT STENT

1 . A stent comprising:

at least one first stent portion formed from a first stent type; and

at least one second stent portion formed from a second stent type, the second stent portion coupled to the first stent portion, and the first stent type being different than the second stent type.

2 . The stent of claim 1 , wherein the first stent portion comprises a braided stent portion, the braided stent portion comprising overlapping interwoven filaments forming a tubular first tubular stent portion, and the second stent portion comprises a wireform stent portion coupled to an end of the braided stent portion.

3 . The stent of claim 2 , wherein the interwoven filaments comprise one or more radiopaque filaments.

4 . The stent of claim 1 , wherein the first stent portion comprises a braided stent portion and the second stent portion comprises ring stents, the ring stents positioned at ends of the braided stent portion within the braided stent portion.

5 . The stent of claim 4 , wherein the braided stent portion is formed from a shaped memory metal.

6 . The stent of claim 1 , wherein filaments forming at least one of the first stent portion or the second stent portion comprise longitudinal filaments that are radiopaque, metallic or polymeric.

7 . The stent of claim 1 , wherein filaments forming at least one of the first stent portion or the second stent portion are configured to deliver drugs.

8 . The stent of claim 1 , wherein the first stent portion comprises a main stent portion and the second stent portion comprises bifurcated stent portions split from the main stent portion.

9 . The stent of claim 1 , wherein at least one of the first stent portion or the second stent portion comprises a tapered diameter that changes along a length thereof.

10 . The stent of claim 1 , wherein the first stent portion comprises a radially expandable ring and the second stent portion comprises a plurality of bridges and braces having a length greater than a length of the radially expandable ring.

11 . The stent of claim 1 , wherein the first stent portion comprises a plurality of radially expandable rings and the second stent portion comprises a plurality of bridges, wherein a connection point of a proximal ring of the radially expandable rings is circumferentially offset relative to a distal ring to define a helical pattern along a length of the stent.

12 . A stent comprising:

a plurality of filaments forming a tubular structure;

a first end of the tubular structure having a first property; and

a second end of the tubular structure having a second property, wherein the first property is different than the second property.

13 . The stent of claim 12 , wherein the first and second properties are first and second diameters, the first diameter being greater than the second diameter.

14 . The stent of claim 12 , wherein end portions of the plurality of filaments at the first and second ends are folded back to form smooth ends.

15 . The stent of claim 12 , wherein the plurality of filaments comprises overlapping interwoven filaments forming the tubular structure.

16 . The stent of claim 15 , wherein the overlapping comprises a repeating overlapping pattern.

17 . The stent of claim 15 , wherein the overlapping comprises a non-repeating overlapping pattern.

18 . The stent of claim 12 , wherein the first property comprises a main diameter and the second property comprises bifurcated diameters.

19 . A stent comprising:

a plurality of rings, each of the rings comprising a plurality of struts; and

a plurality of bridges interconnecting at least some of the rings, the plurality of bridges comprising a plurality of braces, wherein the plurality of braces has a length greater than the length of each of the rings.

20 . The stent of claim 19 , wherein the rings are offset from each other to form a helical pattern along a length of the stent.