Surgery – Truss – Pad
Patent
1990-01-23
1991-06-04
Jaworski, Francis
Surgery
Truss
Pad
128419P, 128642, 128786, A61N 105
Patent
active
050205455
ABSTRACT:
A cardiac lead assembly for use with a heart pacemaker. The assembly has an inner electrode with a corkscrew tip, and an electrode housing which can be comprised of a second electrode. A conductor is connected to the inner electrode for supplying electricity thereto and is comprised of a tubular coil. The inner electrode can be manually moved longitudinally relative to the electrode housing by a stylet. The inner electrode and the housing cooperate to prevent axial rotation of the inner electrode at a first longitudinal position, but allow rotation at a second longitudinal position. The first conductor coil can be suitably twisted such that upon movement of the inner electrode to the second position the coil can automatically axially rotate the inner electrode to screw the corkscrew tip into a patient's heart.
REFERENCES:
patent: 3416534 (1968-12-01), Quinn
patent: 4207903 (1980-06-01), O'Neill
patent: 4287896 (1981-09-01), Grigorov et al.
patent: 4452254 (1984-06-01), Goldberg et al.
patent: 4862887 (1989-09-01), Weber et al.
"Troubleshooting Pacing Problems" Cardiac Pacemakers, Inc., 1980, pp. 15-22.
Getzow Scott M.
Jaworski Francis
Romano Malcolm J.
Siemens-Pacesetter, Inc.
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