Caldwell, W. M.
(Dalton Research Center, University of Missouri, Columbia 65211.)
,
McKown, D. P.
(Dalton Research Center, University of Missouri, Columbia 65211.)
,
Bleck, J. A.
(Dalton Research Center, University of Missouri, Columbia 65211.)
,
Hartley, J. W.
(Dalton Research Center, University of Missouri, Columbia 65211.)
,
Erdal, T.
(Dalton Research Center, University of Missouri, Columbia 65211.)
,
Barrett, E. E.
(Dalton Research Center, University of Missouri, Columbia 65211.)
,
Franklin, D.
(Dalton Research Center, University of Missouri, Columbia 65211.)
A portable apparatus for performing repeated, brief coronary artery occlusions automatically in long-term chronic studies involving dogs and larger animals is described. The battery-operated, back-pack-carried device uses a motorized syringe driven by a digital-programmable timing circuit to inflat...
A portable apparatus for performing repeated, brief coronary artery occlusions automatically in long-term chronic studies involving dogs and larger animals is described. The battery-operated, back-pack-carried device uses a motorized syringe driven by a digital-programmable timing circuit to inflate a coronary artery occluder for durations of 10 s to 3 min at intervals from 14 s to 16 h. A single battery charge produces 450 occlusions. The generated pressure is adjustable to 1,000 mmHg maximum. A separate fail-safe circuit monitors system operation to open a pressure-relief valve if occlusions exceed a preset duration.
A portable apparatus for performing repeated, brief coronary artery occlusions automatically in long-term chronic studies involving dogs and larger animals is described. The battery-operated, back-pack-carried device uses a motorized syringe driven by a digital-programmable timing circuit to inflate a coronary artery occluder for durations of 10 s to 3 min at intervals from 14 s to 16 h. A single battery charge produces 450 occlusions. The generated pressure is adjustable to 1,000 mmHg maximum. A separate fail-safe circuit monitors system operation to open a pressure-relief valve if occlusions exceed a preset duration.
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