Surgery – Diagnostic testing – Cardiovascular
Reexamination Certificate
2005-03-18
2008-08-19
Marmor, II, Charles A. (Department: 3735)
Surgery
Diagnostic testing
Cardiovascular
C604S004010, C604S066000
Reexamination Certificate
active
07413548
ABSTRACT:
An autonomic nervous activity monitor capable of predicting occurrence of abnormal reaction depending on autonomic nervous activity and used for medical practice and the like is provided. A blood component collecting apparatus100carries out frequency analysis to a pattern of heartbeat which is acquired by an ECG300from a donor, and calculates a high frequency component value [msec2] defined as an indicator for parasympathetic activity and a ratio value of a low frequency component to the high frequency component defined as an indicator for sympathetic activity to detect a change in these values on a time-series base. When a judgment circuit204predicts that abnormal reaction may occur to a donor after blood collection operation is started, a controller200controls a pump9to decrease a blood drawing or blood returning speed, or, to stop blood drawing or blood returning operation.
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Mika Seto, et al., “Assessment of Autonomic Nervous Activity Using Spectral Analysis of Heart Rate and Blood Pressure Variability in Autologous Blood Donation and Crystalloid or Colloid Infusion”, Japanese Journal of Transfusion Medicine, 2002, pp. 455-464, vol. 48, No. 6 (with partial English translation).
Saitou Fumiko
Tadokoro Kenji
Takagi Yoshiki
Buchanan & Ingersoll & Rooney PC
Japanese Red Cross Society
Marmor, II Charles A.
Saidi Anita
Terumo Kabushiki Kaisha
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