Patent ID: 8428750

Claim:
A medical electrode device comprising: a. an elongate electrode body having a proximal end and a distal end for insertion into a body of a patient, and b. multiple anchoring elements attached laterally to the electrode body proximally before the distal end to fix the electrode body in the patient, the anchoring elements: (1) being distributed around a circumference of the electrode body, wherein the anchoring elements are oriented around the circumference in such a way that upon engagement of the anchoring elements in a body part of the patient, a rotation of the electrode body is opposed by a greater resistance in one rotational direction than in an opposite direction, and (2) being formed by multiple lamellae distributed around the circumference of the electrode body, wherein each lamella: i. has a base extending lengthwise along at least a portion of a length of the electrode body, ii. projects radially outwardly from the electrode body to terminate in a tip extending at least substantially parallel to the base, with the length of the base, and also a length of the tip, being greater than a radial distance by which the flange extends outwardly from the electrode body, and iii. curves about the circumference of the electrode body.