Biomaterial Database

A servo-controlled roller pump for constant flow or constant pressure blood perfusion under normal pulsatile or non-pulsatile conditions. 1981

P Borgström, and L A Clementz, and P O Grände

This paper describes the design of a servo-controlled precision roller pump applicable for constant blood flow or constant blood pressure perfusion in research on the peripheral circulation. The pump, and its feed-back control, can simulate normal cardiac induced autoperfusion by reproducing the arterial pulse pressure configuration with high fidelity. Its design is such as to minimize damage of the red blood cells and consequent release of vasoactive substances, a problem encountered with most conventional pumps. The present pump principle may also find a use in heart-lung machines and dialysis equipment and can be used as a precision infusion pump.

UI	MeSH Term	Description	Entries
D008954	Models, Biological	Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.	Biological Model,Biological Models,Model, Biological,Models, Biologic,Biologic Model,Biologic Models,Model, Biologic
D010477	Perfusion	Treatment process involving the injection of fluid into an organ or tissue.	Perfusions
D011674	Pulse	The rhythmical expansion and contraction of an ARTERY produced by waves of pressure caused by the ejection of BLOOD from the left ventricle of the HEART as it contracts.	Pulses
D001775	Blood Circulation	The movement of the BLOOD as it is pumped through the CARDIOVASCULAR SYSTEM.	Blood Flow,Circulation, Blood,Blood Flows,Flow, Blood
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D003956	Dialysis	A process of selective diffusion through a membrane. It is usually used to separate low-molecular-weight solutes which diffuse through the membrane from the colloidal and high-molecular-weight solutes which do not. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Dialyses
D005112	Extracorporeal Circulation	Diversion of blood flow through a circuit located outside the body but continuous with the bodily circulation.	Circulation, Extracorporeal,Circulations, Extracorporeal,Extracorporeal Circulations
D006355	Heart-Lung Machine	Apparatus that provides mechanical circulatory support during open-heart surgery, by passing the heart to facilitate surgery on the organ. The basic function of the machine is to oxygenate the body's venous supply of blood and then pump it back into the arterial system. The machine also provides intracardiac suction, filtration, and temperature control. Some of the more important components of these machines include pumps, oxygenators, temperature regulators, and filters. (UMDNS, 1999)	Heart Lung Machine,Heart-Lung Machines,Machine, Heart-Lung,Machines, Heart-Lung
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man