Optimization of the treatment of hydrocephalus by the non-invasive measurement of the intra-cranial pressure
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The aim of this principally experimental study is to understand from fluid mechanic principles why an insignificant anesthetic dose administered as a short bolus into the cerebrospinal fluid inside the subarachnoid space provides greater pain relief than a ...
Purpose: The objective of this study was to review past studies that have used engineering analysis to examine cerebrospinal fluid hydrodynamics in cranial and spinal subarachnoid spaces in both healthy humans and those affected by type I Chiari malformati ...
Full explanation for the pathogenesis of syringomyelia (SM), a neuropathology characterized by the formation of a cystic cavity (syrinx) in the spinal cord (SC), has not yet been provided. It has been hypothesized that abnormal cerebrospinal fluid (CSF) pr ...
Cerebral vasospasm is a typical complication occurring after Subarachnoid Hemorrhage, which may
lead to delayed cerebral ischemia and death. The standard method to detect vasospasm is
angiography, which is an invasive procedure. Monitoring of vasospasm i ...
Mathematical modeling of human physiopathology is a tremendously ambitious task. It encompasses the modeling of most diverse compartments such as the cardiovascular, respiratory, skeletal and nervous systems, as well as the mechanical and biochemical inter ...
Hybrid integration and especially the packaging of microelectromechanical systems (i.e. MEMS) cannot rely on standardised packaging solutions due to the diversity of microsystems. As an example, the packaging requirements of a pressure sensor are different ...
Institut de Microtechnique, Université de Neuchâtel2009
The physical mechanism that governs the incipience and development of leading edge cavitation on hydrofoils is still not fully understood. It involves several parameters such as the pressure level, the nuclei content, the surface roughness and the boundary ...
Hydrocephalus is a cerebral disease where brain ventricles enlarge and compress the brain parenchyma towards the skull leading to symptoms like dementia, walking disorder and incontinence. The origin of normal pressure hydrocephalus is still obscure. In or ...
In this work, we propose an SMD (surface mount device) pressure sensor in LTCC technology specially designed for standard industrial compressed air. It combines the measurement of pressure and temperature, with its integrated signal conditioning electronic ...
This paper presents a pressure sensor based on a variable capacitor formed by a movable polysilicon sealed membrane sensitive to pressure. When operated as a pressure sensor two operation regions are observed, an exponentially sensitivity region at low pre ...