Surgery – Truss – Pad
Patent
1981-12-01
1983-12-27
Howell, Kyle L.
Surgery
Truss
Pad
128696, 128723, A61B 504, A61B 505, A61B 508
Patent
active
044224583
ABSTRACT:
A method and apparatus for detecting respiratory distress is disclosed wherein the increasing force of contraction of the heart, which occurs during a respiratory distress condition is detected and utilized to signal the condition. More particularly, the increasing force of contraction of a patient's heart, which affects the electrical signal generated by an impedance pneumograph may be detected by utilizing the heart beat of the patient to generate a trigger pulse. The trigger pulse is used as a timing means to enable the effects of the heart as registered on the impedance pneumograph, to be detected and compared, with an increase in amplitude of the contractions of the heart indicating a respiratory failure.
REFERENCES:
patent: 3212496 (1965-10-01), Preston
patent: 3572317 (1971-03-01), Wade
patent: 3587562 (1971-06-01), Williams
patent: 3976052 (1976-08-01), Junginger et al.
patent: 4031884 (1977-06-01), Henzel
patent: 4305400 (1981-12-01), Logan
Hanley John C.
Howell Kyle L.
Montefiore Hospital and Medical Center, Inc.
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