AN AUTOMATICALLY CONTROLLED, INEXPENSIVE PUMP-OXYGENATOR

Heart pump and oxygenator.

1124 T ms PAPER is a general review of the development of the artificial heart-lung to facilitate open-heart surgery. At the close of World War II many centers began investigating the possibility of total cardiac bypass. Oven the past decade, pump oxygenerators of various types have become popular and recent clinical successes throughout the world have given further impetus to the study of prob...

Inexpensive heat-exchanger system for the Rygg bag oxygenator.

Variations in the Circuit of a Pump-oxygenator.

S INCE THE ADVENT OF OPEN-HEART SURgery , surgeons and pump-oxygenator technicians have striven to niake their work more simple, yet remain within safe boundaries. The purpose of this paper is to present two details we have adopted in our pump-oxygenator circuit. In many pump-oxygenators, the venous blood from the patient is returned to the top of a venous reservoir where it then falls down int...

An inexpensive blackbody model

A blackbody is a fundamental concept in thermography. A perfect model of blackbody is characterized by emissivity =1 which is difficult to be obtained. There are black body simulators which are being used for calibration of infrared devices. Commercial solutions of blackbody simulators are based on mathematical models of cavity or surface blackbodies and their emissivity is closer to unity e.g....

Results of open heart surgery without donor blood prime in pump-oxygenator.