Transvascular medical lead

1. A method of implanting a lead having a distal region in a lumen comprising:

feeding a combination of the lead with a removable guide wire/stylet therein into a lumen so that a distal region of the combination is located in a selected location within the lumen, wherein the selected location within the lumen is non-straight or branched and the combination includes a two-dimensional shape proximate a distal end of the combination;

rotating the combination to a point where resistance to rotation caused by the combination contacting but not penetrating the non-straight or branched lumen increases; and

withdrawing the guide wire/stylet from the lead while the distal region of the lead is in the selected location, wherein as the guide wire/stylet is withdrawn, the distal region of the lead moves to a three-dimensional shape, and wherein withdrawing the guide wire/stylet from the lead aids in securing the distal region within the non-straight or branched location within the lumen.

2. The method of claim 1 , wherein the combination includes a two-dimensional shape proximate the distal end of the combination, and wherein the two-dimensional shape is imparted to the combination by a bent or shaped stylet or guide wire.

3. The method of claim 1 , wherein the combination includes a two-dimensional shape proximate the distal end of the combination, wherein the distal end of the lead includes a preformed bias, and wherein the two-dimensional shape is imparted to the combination by the preformed bias.

4. The method of claim 3 , wherein the bias is located proximate the distal end of the lead between a first lead fixation structure and a second lead fixation structure.

5. The method of claim 4 , wherein the first lead fixation structure is a first loop and the second lead fixation structure is a second loop.

6. The method of claim 5 , wherein the first loop turns in one direction and the second loop turns in a direction opposite the one direction.

7. The method of claim 5 , wherein the first loop turns in one direction and the second loop turns in the one direction.

8. The method of claim 1 , wherein the feeding step comprises feeding the combination into a second lumen from a first lumen.

9. The method of claim 8 , wherein the first lumen is a subclavian vein and the second lumen is a brachiocephalic vein.

10. The method of claim 1 , wherein the three-dimensional shape comprises a spiral.

11. The method of claim 1 , wherein the lumen includes at least one of a subclavian vein or a brachiocephalic vein.

12. A method of implanting a lead having a distal region in a lumen comprising:

feeding a combination of the lead with a removable guide wire/stylet therein into a lumen so that a distal region of the combination is located in a selected location within the lumen where the lumen is non-straight or branched, wherein the combination includes a two-dimensional shape proximate a distal end of the combination;

rotating the combination to a point where resistance to rotation caused by the combination contacting but not penetrating the non-straight or branched lumen increases; and

withdrawing the guide wire/stylet from the lead while the distal region of the lead is in the selected location, wherein as the guide wire/stylet is withdrawn, the distal region of the lead moves to a three-dimensional spiral shape, and wherein withdrawing the guide wire/stylet from the lead aids in securing the distal region within the non-straight or branched location within the lumen.

13. The method of claim 12 , wherein the combination includes a two-dimensional shape proximate the distal end of the combination, and wherein the two-dimensional shape is imparted to the combination by a bent or shaped stylet or guide wire.

14. The method of claim 12 , wherein the combination includes a two-dimensional shape proximate the distal end of the combination, wherein the distal end of the lead includes a preformed bias, and wherein the two-dimensional shape is imparted to the combination by the preformed bias.

15. The method of claim 14 , wherein the bias is located proximate the distal end of the lead between a first lead fixation structure and a second lead fixation structure.

16. The method of claim 15 , wherein the first lead fixation structure is a first loop and the second lead fixation structure is a second loop.

17. The method of claim 16 , wherein the first loop turns in one direction and the second loop turns in a direction opposite the one direction.

18. The method of claim 16 , wherein the first loop turns in one direction and the second loop turns in the one direction.

19. The method of claim 12 , wherein the lumen includes at least one of a subclavian vein or a brachiocephalic vein.

20. A method of implanting a lead having a distal region in a lumen comprising:

feeding a combination of the lead with a removable guide wire/stylet therein into a lumen so that a distal region of the combination is located in a selected location within the lumen where the lumen is non-straight or branched, wherein the combination includes a two-dimensional shape proximate a distal end of the combination, wherein the two dimensional shape comprises a first loop and a second loop connected with a non-straight, biased portion of the lumen;

rotating the combination to a point where resistance to rotation caused by the combination contacting but not penetrating the non-straight or branched lumen increases; and

withdrawing the guide wire/stylet from the lead while the distal region of the lead is in the selected location, wherein as the guide wire/stylet is withdrawn, the distal region of the lead moves to a three-dimensional spiral shape, and wherein withdrawing the guide wire/stylet from the lead aids in securing the distal region within the non-straight or branched location within the lumen.

21. The method of claim 20 , wherein the lumen includes at least one of a subclavian vein or a brachiocephalic vein.