Inductive plethysmography

Hodous, T.K. (1989) Workplace measurement of respirator effects using respiratory inductive plethysmography, Am Ind Hyg Assoc J, 50(7) 372-378. 

The three main categories of respiratory rate monitoring are impedance pneumography, inductive plethysmography, and piezoresistive monitoring. 

Breathing patterns Piezoresistive stretch sensors, inductive plethysmography, impedance plethysmography, optical fibres Expansion and contraction of ribcage during breathing Thoracic- abdominal region... 

Electrical inductance plethysmography integrates two conductive wires into a garment, one around the ribcage and the other around the abdomen. Motions of the... 

Murphy DJ, Renninger JP, Schramek D (2010). Respiratory inductive plethysmography as a method for measuring ventilatory parameters in conscious, non-restrained dogs. J Pharmacol... 

Conductive tape (Courtesy of Bally Ribbon Mills) is used to neutralize the static electricity and EMI shielding. An elastic webbing (Courtesy of Bally Ribbon Mills) with cable has been used for undersea communication. Physiological sensors and other sensors have been incorporated into textile substrate to monitor heart rate, skin temperature, movement and respiration, and muscle activity for medical and sports applications. RIP (respiratory inductance plethysmography) belts (Courtesy of Natus Neurology Incorporated) are used for sleep apnea monitoring. A conductive belt is used to make electrodes for EEC and other medical applications. A 3D conductive webbing (Courtesy of Bally Ribbon Mills) is also used as ON and OFF switch. 

Blood gases Compliance ICH S7A Oscillometry Oxygen saturation Plethysmography Pneumotachograph Resistance Respiratory inductance plethysmography (RIP) Respiratory rate Tidal volume... 

Brouillette RT, Morrow AS, Weese-Mayer DE, Hunt CE (1987) Comparison of respiratory inductive plethysmography and thoracic impedance for apnea monitoring. J Pediatr 111... 

Ferguson JS, Schaper M, Stock ME, Weyel DA, Alarie Y (1986) Sensory and pulmonary irritation with exposure to methyl isocyanate. Toxicol Appl Pharmacol 82(2) 329-335 Fiamma MN, Samara Z, Baconnier P, Similowski T, Straus C (2007) Respiratory inductive plethysmography to assess respiratory variability and complexity in humans. Respir Physiol Neurobiol 156(2) 234-239... 

Recent technological advances enable measurement of respiratory parameters in dogs using a non-restraint, jacketed telemetry method. This technique is known as respiratory inductive plethysmography (Neumann et al. 1998) and involves the placement of flexible belts around the thorax and abdomen, enabling continuous measurement of respiratory parameters for up to 24 h (Murphy et al. 2010). This noninvasive telemetry technique also enables simultaneous measurement of cardiovascular parameters (Bailey et al. 2012) and can also be adapted to nonhuman primates (Soloviev et al. 2007 Kearney et al. 2011) making it an attractive proposition for inclusion in repeat-dose toxicity studies. 

The principle of measuring respiration based on inductive plethysmography can be incorporated into mUitary uniforms (Cho et al., 2009). The necessary equipment and a wireless body sensor network unit for wireless transmission of data could be comfortably worn around the thorax or abdomen. The amount of oxygen carried by blood cells can be measured by non-invasive techniques involving pulse oximetry (Mendelson and Ochs, 1988). This technique uses an optical sraisor placed around a suitable hody part. 

Most respiratory sensors are based on the pneumography and measure the changes of chest or abdomen circumference. As the circumference increases or decreases, the electrical property of the textile sensor changes, and this change could be interpreted into inhalation and exhalation activities of the wearer. The most common methods include respiratory inductive plethysmography (RIP), piezoresistive sensors, and piezoelectric sensors (Merritt et al., 2009). 

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