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78 results about "Eustachian tube" patented technology

The Eustachian tube, also known as the auditory tube or pharyngotympanic tube, is a tube that links the nasopharynx to the middle ear. It is a part of the middle ear. In adult humans the Eustachian tube is approximately 35 mm (1.4 in) long and 3 mm (0.12 in) in diameter. It is named after the sixteenth-century Italian anatomist Bartolomeo Eustachi.

Elevator controller and elevator apparatus

InactiveCN102066223ALess discomfortDeterioration of operating efficiencyElevatorsBuilding liftsLow speedHeight difference
An elevator controller provided to an elevator capable of lessening the unpleasant feeling of the passenger(s) due to ear popping without lowering the operation efficiency of the elevator more than required. An elevation / descent distance calculating section (13) calculates the elevation / descent distance of the car (1) controlled by the elevator controller from destination floor information (12a) and car position command signal (3a) and outputs elevation / descent distance information (13a) to a speed pattern generating section (14). The speed pattern generating section (14) compares in magnitude the elevation / descent distance and a predetermined distance. If the elevation / descent distance is shorter than the predetermined one, the speed pattern generating section (14) generates a speed pattern (14a) for normal operation; if longer, the speed pattern generating section (14) generates a speed pattern (14a) for partial low-speed operation. The predetermined distance indicates the height difference corresponding to the air pressure difference which brings the passenger(s) opening the Eustachian tube to solve the ear popping. A speed control circuit (24) elevates / descends the car (1) according to the speed pattern (14a). As a result, after the first opening of the Eustachian tube, the car (1) elevates / descends at low speed, the interval until the car (1) elevates / descends a height difference causing the next ear popping can be lengthened, and the unpleasant feeling of the passenger(s) due to the ear popping can be lessened.
Owner:MITSUBISHI ELECTRIC CORP

Tympanic cavity-eustachian tube drainage device

The invention provides a tympanic cavity-eustachian tube drainage device which comprises a support sheet and a drainage strip, wherein the support sheet is connected with one end of the drainage strip; drainage slots are formed in the surfaces of the support sheet and the drainage strip and include first drainage slots and a second drainage slot; the first drainage slots are formed in the supportsheet and extend to one end of the drainage strip from the periphery of the support sheet; the second drainage slot is formed in the drainage strip and extends to the other end of the drainage strip from one end of the drainage strip; and the first drainage slots are in butt connection with the second drainage slot. The support sheet can cover a mucosa of a tympanic cavity; at the same time, the drainage strip can be inserted into an eustachian tube; the first drainage slots drain secretions to the drainage strip from the tympanic cavity; the second drainage slot drain the secretions drained by the first drainage slots to the outside of the tympanic cavity; and the tympanic cavity-eustachian tube drainage device can avoid adhesion of the tympanic cavity and an ostium of the eustachian tube, drain the secretions in the tympanic cavity, improve a ventilation function of the eustachian tube and a middle ear, help reconstruct a pneumatic space of the tympanic cavity and increase hearing reconstruction probability.
Owner:北京郅精医疗技术有限公司
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