An electronic sphygmomanometer outlet seat

Abstract

The invention relates to an air exhausting base for an electronic sphygmomanometer. The air exhausting base comprises a base body, wherein a penetrated chamber is arranged along an axial direction of the base body in the base body, so as to form an air channel; the chamber comprises a straight first chamber, a conical second chamber and a straight third chamber in turn; the straight first chamber extends from one end of the base body to the other end; the conical second chamber is gradually narrowed; a clearance is formed between the second chamber and the first chamber; the diameter of the biggest end face of the second chamber is less than the diameter of the first chamber; an elastic membrane for wrapping the clearance is jointed between the second chamber and the first chamber; and the diameter of the third chamber is equal to the diameter of the smallest end face of the second chamber. According to the invention, the air channel is arranged in an irregular shape, so that air at an outlet can form consistent pressure, meanwhile, the elastic membrane is jointed between the second chamber and the first chamber, so that the chambers can be opened and much more air can be accommodated when the air pressure is higher, the deflating speed is consistent and constant-speed deflating can be realized when the air pressure is higher and lower, and the accuracy and precision of the blood pressure measurement can be guaranteed.

Description

technical field [0001] The invention relates to medical equipment, in particular to an air outlet seat of an electronic sphygmomanometer. Background technique [0002] Electronic sphygmomanometer is a medical device that uses modern electronic technology and the principle of indirect blood pressure measurement to measure blood pressure. Electronic sphygmomanometers are divided into arm type and wrist type; its technology has experienced the development of the most primitive first generation, second generation (arm type use), and third generation (wrist type use). Electronic sphygmomanometer has become the main tool for home self-test blood pressure. Electronic sphygmomanometers are also increasingly being used in hospitals and other medical institutions. [0003] A general sphygmomanometer is mainly composed of a sphygmomanometer body and a cuff. The interior of the sphygmomanometer body includes an air pump, a pressure sensor, a quick deflation valve, a miniature deflatio...

AI Technical Summary

Problems solved by technology

This type of bleed valve has a disadvantage, that is, the bleed valve is not adjustable under working conditions, and the size of the cut opening can only be adjusted by adjusting the adjustment plug once before the whole machine is installed, and because the cut is very small , the opening length in the length direction of the deflation valve is generally 0.1mm to 0.2mm. This structure will cause the deflation speed to be faster when the pressure inside the cuff is high and the deflation speed to be slow when the pressure inside the cuff is low. The deflation curve is nonlinear during deflation measurement, which affects the accuracy and precision of blood pressure measurement

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