Shapeable intraluminal device and method therefor
View Patent ↗A hollow medical device includes a coil member having a distal end, a proximal end, a plurality of turns extending therebetween, and a lumen extending through the turns. The coil member further includes at least one weld extending from one turn to an adjacent turn.
1. A hollow medical device comprising a coil member comprising a distal end, a proximal end, a plurality of turns extending therebetween, and a lumen extending through said turns, said coil member comprising a plurality of intersecting welds extending from one turn to an adjacent turn to provide stiffness to said coil, and plurality of non-intersecting welds extending from one turn to an adjacent turn to from at least one ductile member, said coil member configured to be plastically deformed by bending said ductile member at the plurality of non-intersecting welds, such that said ductile member retains a bent shape of said coil member, said lumen configured to house at least one of an optical fiber, a balloon inflation tube, a drug delivery tube, and a reagent delivery tube.
2. A hollow medical device in accordance with claim 1 wherein said device comprises one of a catheter and a guide wire.
3. A hollow medical device in accordance with claim 1 wherein said coil member comprises at least one of a helical coil of wire and a wound ribbon.
4. A hollow medical device in accordance with claim 1 wherein said coil member comprises metal.
5. A hollow medical device in accordance with claim 4 wherein said metal is at least one of steel and nitinol.
6. A hollow medical device in accordance with claim 1 wherein said coil member includes an axis extending from said proximal end to said distal end, said plurality of non-intersecting welds substantially parallel to said axis.
7. A hollow medical device in accordance with claim 1 wherein at least one of said plurality of non-intersecting welds connects at least three adjacent turns.
8. A hollow medical device in accordance with claim 1 wherein said device further comprises a distal tip, said distal end connected to said distal tip.
9. A method for shaping an intraluminal device having a coiled member configured to house at least one of an optical fiber, a balloon inflation tube, a drug delivery tube, and a reagent delivery tube, said method comprising: forming the coil member including a distal end, a proximal end, a plurality of turns extending between the proximal end and the distal end, and a lumen extending though the turns; welding a plurality of intersecting welds that extend from one turn to an adjacent turn to provide stiffness to said coil; welding a plurality of non-intersecting welds that extend from one turn to an adjacent turn to form a ductile member; and plastically bending the ductile member at the plurality of non-intersecting welds into a bent shape suitable to traverse a body lumen, such that the ductile member retains the bent shape of the coil member.
10. A method in accordance with claim 9 wherein plastically bending the coil member comprises plastically deforming the coil member at the plurality of non-intersecting welds.
11. A method in accordance with claim 9 wherein welding comprises at least one of welding and soldering the at least one turn of the coil member to an adjacent turn.
12. A method in accordance with claim 9 further comprising welding at least three adjacent turns.
13. A medical device for insertion into a body lumen, said medical device comprising a coil comprising a plurality of turns, a plurality of intersecting welds that extend from one turn to an adjacent turn to provide stiffness to said coil, a plurality of non-intersecting welds that extend from one turn to an adjacent turn to form a ductile member, and a lumen extending through said turns, said lumen configured to house at least one of an optical fiber, a balloon inflation tube, a drug delivery tube, and a reagent delivery tube, said coil configured to be plastically deformed by bending said coil at said ductile member, such that said ductile member retains a bent shape of said coil member.
14. A medical device in accordance with claim 13 wherein said device comprises one of a catheter and a guide wire.
15. A medical device in accordance with claim 13 wherein said coil comprises at least one of a helical coil of wire and a wound ribbon.
16. A medical device in accordance with claim 13 wherein said coil comprises is at least one of steel and nitinol.
17. A medical device in accordance with claim 13 wherein said plurality of non-intersecting welds are substantially parallel to said turns.
18. A medical device in accordance with claim 13 wherein at least one of said plurality of non-intersecting welds connects at least three adjacent turns.
19. A medical device in accordance with claim 13 wherein a portion of said turns are annealed and flexible, said coil having a hollow body.
20. A medical device in accordance with claim 13 wherein a portion of said turns are annealed and flexible.