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首页> 美国政府科技报告 >Sequenced Pulsation - a New Cardiac Assist Device. Volume I
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Sequenced Pulsation - a New Cardiac Assist Device. Volume I

机译：序贯脉动 - 一种新的心脏辅助装置。第一卷

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A noninvasive technique for obtaining the cardiovascular effects of counterpulsation has been subjected to preliminary evaluation using normal baboon test subjects. The sequenced pulsation technique consists of application of progressive pneumatic pressure pulses from distal to proximal ends of the limbs during each cardiac cycle to increase central aortic pressure during diastole. Limb pressures are released during systole to permit refilling of the limb arteries and provide the effect of reduced peripheral resistance. Constant pressure applied to the head and torso is intended to expedite filling of limb arteries during cardiac systole. Two pressure suits, one for baboon and one for human subjects, have been fabricated. Preliminary experiments on normal baboons have indicated cardiac output increases from 5 to 50 percent (average 25 percent) and diastolic pressure increases to peak systolic pressure level with application of sequenced pulsation. (Author)

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