Metal vibrating diaphragm structure applied to stethoscope

Abstract

The invention discloses a metal vibrating diaphragm structure applied to a stethoscope. The structure comprises an annular support arranged on an auscultation head; a metal vibrating diaphragm is arranged in the middle of the annular support, and the edge of the metal vibrating diaphragm is connected with the annular support through a rubber folding ring; the metal vibrating diaphragm is sequentially provided with a slightly protruding heart sound area, a concave damping area and a sound guiding area from inside to outside, and a sound guiding hole groove is formed in the sound guiding area. The metal vibrating diaphragm is used for replacing a traditional plastic vibrating diaphragm, and has the advantages that the surface of the metal vibrating diaphragm is smooth, fricative is reduced,and the interference is reduced; the rigidity of the metal vibrating diaphragm is high, environment interference sound resistance is high, and the noise reduction effect can be further improved; the near-distance resonance effect of the metal vibrating diaphragm is superior to that of the traditional plastic vibrating diaphragm so that the intensity of breathing sound can be greatly improved; thediaphragm made of metal is convenient to disinfect and clean; the sound guide area on the metal vibrating diaphragm can guide the required sound into the heart sound area; the damping area on the metal vibrating diaphragm is used for effectively reducing noise interference.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a metal diaphragm structure applied to a stethoscope. Background technique [0002] A stethoscope is a medical instrument used for auscultation. According to its type, the stethoscope includes a single-sided auscultation head, a double-sided auscultation head and a bell-shaped auscultation head. In addition to the bell-shaped auscultation head, which uses an inverted cone-shaped horn-shaped structure for sound collection and amplification, the other two commonly used auscultation heads use the diaphragm as the main sound collection and transmission unit. [0003] For a stethoscope, the diaphragm is the most basic and critical component to achieve its normal use and function. Its key degree is like the drum head of a jazz drum. Without it, there is basically no way to realize the collection and transmission of diagnostic sounds. Just can't realize its most basic auscultation func...

AI Technical Summary

Problems solved by technology

But also because the elastic modulus of the diaphragm is extremely rigid, the edge part of the fixed diaphragm of the auscultation head will become harder, so that the vibration amplitude will be reduced and the low frequency will be very small, so use a plastic diaphragm to listen to heart sounds. Various frequency bands can be heard, but I always feel that the volume is not loud, and the sound is slightly muffled and unclear

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