Device and method for positioning an electrode in tissue
First Claim
1. A device configured to position an electrode in tissue in a body, comprising:
- an elongate body having a lumen and a distal portion;
an internal tube in the elongate body lumen, said internal tube having an alignment lumen with a cross-sectional shape;
an electrode array coupled to the distal portion of the elongate body;
an actuator in the elongate body lumen having an anchoring element having a distal anchor tip disposed within the alignment lumen of the internal tube, wherein the actuator is configured to move the anchoring element in the alignment lumen between a first configuration in which the distal anchor tip is substantially retracted within the elongate body and a second configuration in which the distal anchoring element is at least partially extended outside the elongate body, the distal anchoring tip of the anchoring element being configured to penetrate and fixate within the tissue when in the second configuration, wherein the anchoring element is shaped to be constrained within the alignment lumen to deploy the anchoring tip in an anchor deployment direction; and
a displacement mechanism on the distal portion of the elongate body and configured to bias the anchoring element in a direction opposite to the anchor deployment direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for positioning an electrode in tissue includes: a lead body having a distal portion; an electrode array coupled to the lead distal portion; an anchoring element having an anchor tip and being operable in a first configuration in which the anchor tip is retracted within the lead and in a second configuration in which the anchor tip is extended outside the lead and configured to fixate within the tissue; and a displacement mechanism that is actuated to bias the electrode array or the anchoring element toward the tissue. A method for positioning an electrode in tissue includes: navigating, to the tissue, a lead with an electrode array, an anchoring element with a distal anchor tip, and a displacement mechanism; biasing the electrode array and anchoring element towards the tissue with the displacement mechanism; and deploying the anchoring element, and verifying fixation of the anchor tip within the tissue.
-
Citations
5 Claims
-
1. A device configured to position an electrode in tissue in a body, comprising:
-
an elongate body having a lumen and a distal portion; an internal tube in the elongate body lumen, said internal tube having an alignment lumen with a cross-sectional shape; an electrode array coupled to the distal portion of the elongate body; an actuator in the elongate body lumen having an anchoring element having a distal anchor tip disposed within the alignment lumen of the internal tube, wherein the actuator is configured to move the anchoring element in the alignment lumen between a first configuration in which the distal anchor tip is substantially retracted within the elongate body and a second configuration in which the distal anchoring element is at least partially extended outside the elongate body, the distal anchoring tip of the anchoring element being configured to penetrate and fixate within the tissue when in the second configuration, wherein the anchoring element is shaped to be constrained within the alignment lumen to deploy the anchoring tip in an anchor deployment direction; and a displacement mechanism on the distal portion of the elongate body and configured to bias the anchoring element in a direction opposite to the anchor deployment direction. - View Dependent Claims (2, 3, 4, 5)
-
Specification