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A Device that Measures How Human Body Feels the Temperature
[Category : - HEALTH]
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Whither implemented in a standalone medical device or in a module of a bedside physiological monitoring system, the invention can identify if the patient's body is not in ideal state in relation to the ambient temperature and if the body is trying to readjust the temperature. This is especially important for patients that do not have the ability to provide feedback, such as neonatal and pediatric patients or even patients who are sedated or comatose.
In the consumer clothing industry, the available fabric compatible small microcontrollers and electronic components can be used to implement the invention in different kinds of cloths such as t-shirts and pants. One of the applications in this industry can be in the infants clothing where smart clothes can monitor and indicate to parents, using LEDs or other methods, the infant's ideal temperature.
This invention utilizes a mechanism in human body that monitors and adjusts the core temperature when it is not in an ideal state. The mechanism is known medically as the "thermoregulatory system". The ideal human body core temperature state where no temperature readjustment is necessary is named "thermostat", which falls between 36.5°C (97.7°F) and 37.5C° (99.5°F).[1]
The thermoregulatory system acts when excess heat exists in the core of the body. In this case, the thermoregulatory system causes peripheral vasodilation in order to dissipate the excessive heat in the core.[1]. This causes the temperature of the peripherals to be closer to the core in compare to the thermostat.
When the core temperature falls below the thermostat limit, the human body also acts to readjust the temperature and to prevent hypothermia. The first action taken by the thermoregulatory system is peripheral vasoconstriction, which decreases the flow of blood in the area.[2,3] This causes the peripheral part temperature to be lower than the core further than the body's normal condition, thermostat.
The method monitors the core and peripheral temperatures and constantly calculates the difference in order to identify the status of the thermoregulatory system. The temperature sensors can be a single or multiple components. The multiple sensors are more practical. However, a single sensor is also possible and it can stretch from the core to the peripheral region of the body.
Based on the outcome of each calculation, the method indicates the status of the human body's thermoregulatory system. This can be via light, sound and/or other indication mean. For example, if the method identifies a low temperature status of the body core, a tricolor Light Emitting Diode (LED) can be configured to emit blue color. In the same manner, red color can be emitted when high temperature status is detected.
The method includes a number of techniques to identify if the thermometer sensors are not intact to the relevant points of the human body or not. This includes checking that the readings are within the human body survivable ranges and also the change in readings is not fluctuating in an abnormal pace.
1 Starr, C. & McMillan, B. (2010). Human Biology. Belmont, CA:Brooks/Cole, Cengage Learning.
2 Aitkenhead, A. R. (2007). Textbook of Anaesthesia. Philadelphia, PA: Elsevier Limited.
3 Sherwood, L. (2010). Human Physiology: From Cells to Systems. Belmont, CA:Brooks/Cole, Cengage Learning.
Patent publications:
US 20150126896
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