PubMed Health⌕ Search

PubMed · 1769507

[Hematologic engineering in modern transfusiology].

Abstract

Three groups of hematological engineering methods have been considered: (1) blood gravitation surgery, (2) sorption methods, (3) blood irradiation methods. They were comparatively characterized with respect to their effectiveness. Combined employment of various methods of hematological engineering permits one to avoid shortcomings and intensify the effectiveness of each group of methods. It is shown that new internal environment of the body is developed in the process of hematological engineering operations. It is stressed that hematological engineering combines methods of blood reconstruction.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

O K Gavrilov. 1991. [Hematologic engineering in modern transfusiology].. https://pubmed.ncbi.nlm.nih.gov/1769507/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

Optimal design of non-Newtonian, micro-scale viscous pumps for biomedical devices.

The present paper addresses the numerical optimization of geometrical parameters of non-Newtonian micro-scale viscous pumps for biomedical devices. The objective is to maximize the mass flow rate per unit of shaft power consumed by the rotor when an external pressure load is applied along the channel that houses the rotor. Two geometric parameters are considered in the optimization process: (i) the height of the channel that houses the rotor (H) and (ii), the eccentricity (epsilon) of the rotor. Three different micro-scale viscous pump configurations were tested: a straight-housed pump (I-shaped housing) and two curved housed pumps (L- and U-shaped housings). The stress-strain constitutive law is modeled by a power-law relation. The results show that the geometric optimization of micro-scale viscous pumps is critical since the mass flow rate propelled by the rotor is highly dependent on epsilon and H. Numerical simulations indicate that mass flow rate is maximized when epsilon approximately 0, namely when the rotor is placed at a distance of 0.05 radii from the lower wall. The results also show that micro-scale viscous pumps with curved housing provide higher mass flow rate per unit of shaft power consumed when compared with straight-housed pumps. The results are presented in terms optimized dimensions of all three configurations (i.e., H(opt) and epsilon(opt)) and for values of the power-law index varying between 0.5 (shear thinning fluids) and 1.5 (shear-thickening fluids).

Biomedical Engineering↗