Medical electrical lead having tapered spiral fixation

Details Medical electrical lead having tapered spiral fixation Medical electrical lead having tapered spiral fixation

1997-09-25

1999-02-16

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

607116, 607122, 600375, 600377, A61N 105

Patent

active

058715312

ABSTRACT:
A transvenous lead specifically designed for coronary sinus implantation. The lead of the present invention features an electrode/anchoring portion at its distal end. The electrode/anchoring portion features a dual tapered self-propelling spiral electrode. Through this design the electrode supplies excellent direct electrical contact to the inside of the vessel. The dual tapered spiral permits the electrode to either be propelled forward within the vessel and toward the more distal locations by turning in a first direction and also permits the electrode to be propelled backwards within the vessel toward the more proximal locations by turning in a second, opposite direction. The spiral shape does not obstruct blood flow. The taper to the spiral also permits the electrode portion to be placed through any valves which may be within the vessel without causing damage. Through this design the lead provides the ability to electrically sense and stimulate many areas along the coronary sinus and its related vessels such that either the left atrium or left ventricle of the heart may be electrically stimulated.

REFERENCES:
patent: 4922927 (1990-05-01), Fine et al.
patent: 5076285 (1991-12-01), Hess et al.
patent: 5300108 (1994-04-01), Rebell et al.
patent: 5423865 (1995-06-01), Bowald et al.
patent: 5643255 (1997-07-01), Organ

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