Complex wire formed devices
The devices and methods described herein relate to jointless construction of complex structures. Such devices have applicability in through-out the body, including clearing of blockages within body lumens, such as the vasculature, by addressing the frictional resistance on the obstruction prior to attempting to translate and/or mobilize the obstruction within the body lumen.
1. A medical device for delivery through a catheter, the medical device comprising:
a main bundle comprising a group of wires having a first end extending through the catheter and a second end;
where the main bundle of wires diverge at the second end to form a first shaped section, the first shaped section further comprises an expanded profile and a reduced profile for delivery through the catheter;
a plurality of individual subsets of wires each diverging from the first shaped section to form a second shaped section;
where the individual subsets of wires converge to form a third shaped section, where the third shaped section comprises an expanded profile and a reduced profile for delivery through the catheter; and
where the convergence and divergence of wires occurs without junctions between wires; and
a capturing section formed by at least one wire diverging from the third shaped section, the capturing portion having a mesh structure.
2. The medical device of claim 1 , where the main bundle diverges at the second end in at least two portions before forming the first shaped section.
3. The medical device of claim 1 , where the main bundle extends for a length sufficient to withdraw the device from a body of a patient.
4. The medical device of claim 1 , where the main bundle of wires includes at least a first wire and a second wire where the first and second wire each have different characteristics.
5. The medical device of claim 4 , where the characteristics are selected from a group consisting of material, cross-sectional shape, and cross-sectional size.
6. The medical device of claim 4 , where the characteristics are selected from a group consisting of brittleness, ductility, elasticity, hardness, malleability, plasticity, strength, and toughness.
7. The medical device of claim 1 , where the main bundle of wires includes at least one shape memory alloy wire.
8. The medical device of claim 1 , where the main bundle of wires includes at least one super-elastic wire.
9. The medical device of claim 1 , where the main bundle of wires includes at least one polymeric wire.
10. The medical device of claim 1 , where the main bundle of wires includes at least one wire comprising a metal alloy.
11. The medical device of claim 10 , where the metal alloy comprises an alloy selected from the group consisting of stainless steel, titanium, platinum and gold, iridium, tantalum, nitinol, and combinations thereof.
12. The medical device of claim 1 , further comprising at least one radiopaque material located on the first shaped section and/or the second shaped section.
13. The medical device of claim 1 , where the first shaped section comprises a shape selected from a circle, an arcuate shape, a partial circular shape, a loop, an oval, a square, a rectangle, a polygon, an overlapping loop, a pair of semi-circles, a flower shape, and a figure 8.
14. The medical device of claim 13 , where the first shaped section is non-planar.
15. The medical device of claim 1 , where the third shaped section comprises a shape selected from a circle, an arcuate shape, a partial circular shape, a loop, an oval, a square, a rectangle, a polygon, an overlapping loop, a pair of semi-circles, a flower shape, and a figure 8.
16. The medical device of claim 15 , where the third shaped section is non-planar.
17. The medical device of claim 1 , where the individual subsets of wires in the second shaped section extend substantially normal to the first shaped section.
18. The medical device of claim 1 , where the capturing section comprises a shape selected from the group consisting of a basket, a filter, a bag, and a plurality of crossing wires.