| 摘要 |
Methods and apparatus for anchoring an elongate medical device within a body portal, for example, a stimulation lead in a cranial burr hole, employ opposing engagement surfaces, spring biased toward one another. A retaining member may be inserted between the opposing surfaces, to hold the surfaces apart for initial positioning of the device therebetween. For example, a delivery catheter in which the device is moved through the body portal can serve as the retaining member, in one type of apparatus, the engagement surfaces are formed within an anchoring aperture of one plate member of a pair of plate members. In another type of apparatus, the engagement surfaces are formed by sides of a slot that extend through a ring member and into a plug member, wherein a portion of the plug member is preferably formed by an elastomer material, and, in some cases, an entirety of the apparatus. |
