Surgery – Truss – Pad
Patent
1980-11-13
1982-09-28
Recla, Henry J.
Surgery
Truss
Pad
A61B 508
Patent
active
043513441
ABSTRACT:
Respirator techniques are described for measuring the linear slope of the inspiratory phase to monitor lung compliance. The measurements of the slope characterize a pressure wave index which is recorded at regular intervals to provide a clear record from which a warning of the patient's pulmonary condition such as lung compliance can be derived. Several techniques are shown and described. In one, the pressure wave index is determined by sensing the times when the pressure-time signal reaches predetermined pressure levels above a base line. In another technique, the linear slope segment is searched for and its slope then measured.
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patent: 4036222 (1977-07-01), Gillard et al.
Saklad et al., "Obtaining and Interpreting Respiratory Flow, Pressure and Waveforms", Journal of International Anesthesiology Clinics, vol. 12, pp. 25-45, 1974.
Galvis et al., "Continuous Dynamic Monitoring of Pressure Flow Patterns During Assisted Ventilation", Journal of Pediatric Surgery, vol. 11, No. 3, Jun. 1976, p. 307.
Specht et al., "Monitoring of Pressure-Limited Neonatal Ventilators", Respiratory Care, vol. 23, No. 1, Jan. 1978, pp. 74 and 76.
Reynolds et al., "A Multiplex Cathode-Ray-Tube Display with Digital Readout for a Body Plethysmograph", Medical and Biological Eng. vol. 11, No. 3, May 1973, pp. 268-274.
Bio-Med Devices Inc.
Recla Henry J.
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