| 摘要 |
<p>Devices and methods for implanting a spinal neurological lead having at least one wing or flap extending transversely from the lead body. The wing can have a first wrapped configuration in which the wing is constrained against the lead body and a second unwrapped configuration is which the wing is unconstrained and allowed to extend outwardly. The wing can be biased to unwrap such that the wing tips change in angular position when viewed from the end, and in transverse extension when viewed from the top, but not in longitudinal position when viewed from the side. A pusher tube can be used to urge the lead from a delivery catheter, allowing the wing or wings to extend to urge a surface electrode toward the spinal cord, to maintain longitudinal position, and to be passively fixed over time. Such leads can provide improved longitudinal stability after the lead electrode position has been properly fixed with respect to the spinal cord.</p> |
