Directional electrode devices with locating features
First Claim
1. An assembly, comprising:
- an elongate lead having a central longitudinal axis, a distal portion, a proximal portion, and at least one directional electrode positioned on the distal portion of the elongate lead; and
a lead guide that is slidably engageable with the elongate lead in a coaxial relationship and facilitates placement of the elongate lead within tissue of a patient, wherein the lead guide is a cannula or a stylet;
wherein the elongate lead and the lead guide are rotationally fixed when they are engaged with each other, wherein the elongate lead has a first orientation indicator and the lead guide has a second orientation indicator, and wherein the first orientation indicator aligns with the second orientation indicator when the elongate lead and the lead guide are engaged with each other.
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Accused Products
Abstract
Electrode devices having directional electrodes for use in deep brain stimulation or other uses. In one aspect, an electrode assembly comprises an elongate lead and a lead guide that are engageable with each other in a coaxial relationship. When the elongate lead and the lead guide are engaged with each other, the two components are rotationally fixed in relation to each other. In another aspect, an elongate lead comprises a radiologically-visible feature for indicating the orientation of the elongate lead. In yet another aspect, an electrode system is capable of determining the position and/or orientation of an electrode positioned within a body. In other aspects, methods for electrically stimulating a target site in the body are disclosed.
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Citations
20 Claims
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1. An assembly, comprising:
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an elongate lead having a central longitudinal axis, a distal portion, a proximal portion, and at least one directional electrode positioned on the distal portion of the elongate lead; and a lead guide that is slidably engageable with the elongate lead in a coaxial relationship and facilitates placement of the elongate lead within tissue of a patient, wherein the lead guide is a cannula or a stylet; wherein the elongate lead and the lead guide are rotationally fixed when they are engaged with each other, wherein the elongate lead has a first orientation indicator and the lead guide has a second orientation indicator, and wherein the first orientation indicator aligns with the second orientation indicator when the elongate lead and the lead guide are engaged with each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification