Surgery – Truss – Pad
Patent
1991-05-24
1992-11-10
Cohen, Lee S.
Surgery
Truss
Pad
128630, 128774, A61B 502
Patent
active
051615401
ABSTRACT:
To monitor a patient for rejection reactions of an implanted heart, a permanent magnet is implanted epicardially in the heart wall and a magnetically active semiconductor element, preferably a Hall generator, is implanted endocardially. Movement of the heart wall results in changes in the distance between the permanent magnet and the semiconductor element. An implantable component supplies the semiconductor element with current and measures the signal generated by the movement of the heart wall. The measured values are transmitted electromagnetically out of the body by the component and recorded extracorporeally, and stored for data transmission.
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"Myocardial Dimension Measurement System" IEEE 1979 Conference, Frontiers of Engineering in Health Care Denver, Colo., USA pp. 348-351 (18.5.1).
IEEE Transactions on Biomedical Engineering, vol. BME-33 No. 2, Feb. 1986 pp. 215-221 Design And Implementation Of An Implantable Goniometer by Troyk et al.
Cohen Lee S.
Fehling Guido
Jastrzab J.
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