| 摘要 |
Disclosed is a transvenously implantable electrode for a cardiac pacemaker. It comprises closely wound conductor having an end which is adapted to be located inside the heart, which end is loosely wound with a long pitch to form a helix. The helix is adapted to be screwed into the heart muscle by applying a torque to the other end of the conductor. During introduction of the electrode into the heart the helix is retained inside a protection sheath which also constitutes an insulating sheath for the flexible conductor. |
