Catheter-tip flowmeter for coronary arterial flow in closed-chest dogs

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Abstract
The design of a catheter-tip flowmeter for the measurement of coronary arterial blood flow in closed-chest dogs is presented. The miniaturized flowmeter is attached to the tip of a rigid catheter which is inserted through the right carotid artery. The flowmeter is placed in the ascending aorta where it measures the inflow into the left coronary artery. Performance tests show the reliability of the instrument for the measurement of pulsatile flow. pulsatile flow Submitted on February 3, 1964

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