scholarly journals 64. Experimental Studies on Hepatic Circulation and Functions in Head Injury

1963 ◽  
Vol 5 (0) ◽  
pp. 93b-94
Author(s):  
Nobuo MORIYASU ◽  
Kohten SATOW ◽  
Torao FUJII ◽  
Masakazu HONMA ◽  
Fumio MIYAUCHI ◽  
...  
Keyword(s):  
Head Injury ◽  
Experimental Studies ◽  
Hepatic Circulation

scholarly journals Experimental Studies on the Humoral and Nervous Control of the Hepatic Circulation

1962 ◽  
Vol 3 (6) ◽  
pp. 569-580 ◽  
Author(s):  
Hideo UEDA ◽  
Hidenori MAEZAWA ◽  
Naoto HASEGAWA ◽  
Masuyo NOMURA ◽  
Tadashi SAKURAI ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Hepatic Circulation ◽  
Nervous Control

scholarly journals A NEW BIOMECHANICAL HEAD INJURY CRITERION

2006 ◽  
Vol 06 (04) ◽  
pp. 349-371 ◽  
Author(s):  
CHARLES F. BABBS
Keyword(s):  
Head Injury ◽  
High Speed ◽  
Compressive Strain ◽  
Experimental Studies ◽  
Closed Head Injury ◽  
Lumped Parameter Model ◽  
Viscoelastic Deformation ◽  
Head Injury Criterion ◽  
Closed Head ◽  
The Brain

This paper presents a new analysis of the physics of closed head injury caused by intense acceleration of the head. At rest a 1 cm gap filled with cerebrospinal fluid (CSF) separates the adult human brain from the skull. During impact, whole head acceleration induces artificial gravity within the skull. Because its density differs slightly from that of CSF, the brain accelerates, strikes the inner aspect of the rigid skull, and undergoes viscoelastic deformation. Analytical methods for a lumped parameter model of the brain predict internal brain motions that correlate well with published high-speed photographic studies. The same methods predict a truncated hyperbolic strength-duration curve for impacts that produce a given critical compressive strain. A family of such curves exists for different critical strains. Each truncated hyperbolic curve defines a head injury criterion (HIC) or threshold for injury, which is little changed by small offsetting corrections for curvature of the brain and for viscous damping. Such curves predict results of experimental studies of closed head injury, known limits for safe versus dangerous falls, and the relative resistance of smaller versus larger animals to acceleration of the head. The underlying theory provides improved understanding of closed head injury and better guidance to designers of protective equipment and to those extrapolating research results from animals to man.

scholarly journals l-6. Experimental Studies on the Metabolism in Head Injury

1968 ◽  
Vol 10 ◽  
pp. 234-234
Author(s):  
Nobuo MORIYASU ◽  
Kohten SATO ◽  
Yuji KOIKE ◽  
Shiro IZAWA ◽  
Shunichi MURAI
Keyword(s):  
Head Injury ◽  
Experimental Studies

Experimental studies in head injury

1966 ◽  
Vol 3 (2) ◽  
pp. 174-180 ◽  
Author(s):  
Sten Lindgren ◽  
Lennart Rinder
Keyword(s):  
Head Injury ◽  
Experimental Studies
Sign in / Sign up

Export Citation Format

Share Document