Medical neurological lead with integral fixation mechanism

Details Medical neurological lead with integral fixation mechanism Medical neurological lead with integral fixation mechanism

1997-04-23

1999-02-02

Getzow, Scott M.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

607126, A61N 105

Patent

active

058658432

ABSTRACT:
A medical, neurological lead includes structure preferably integral to the lead. A helical anchor is raised or channeled into the exterior of the lead. A companion helical valley extends alongside a helical protuberance. Both are created in the lead during the process of its formation, by suitable casting or extrusion or other techniques. Soft tissue and a fibrotic sheath form about the valley and protuberance of the lead such that the lead is fixed longitudinally and laterally, acutely and chronically, by the anchor. The pitch of the valley and protuberance relative to the longitudinal axis of the lead, and the smoothness of the exterior of the lead, are chosen such that the lead may, if and when necessary, be literally screwed from the body, by turn of the lead.

REFERENCES:
patent: 5003992 (1991-04-01), Holleman et al.
patent: 5058584 (1991-10-01), Bourgeois
patent: 5090422 (1992-02-01), Dahl et al.

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