Portable digital stethoscope

Abstract

The invention discloses a portable digital stethoscope which is composed of a stethoscope head, a rubber tube, a signal processing unit, ear pieces, a storage device, a liquid-crystal display and button module and a power source. The signal processing unit is located inside the rubber tube. The stethoscope head is replaceable and is in threaded connection with the rubber tube. The stethoscope is provided with a storage or an SD card and communicated with a computer through a USB interface, and can also achieve the wireless communication function through a zigbee protocol. Earphones are embedded into the ear pieces. The earphones are connected with the signal processing unit through earphone interfaces. The power source is a rechargeable lithium battery. A liquid-crystal display screen displays relevant information. Compared with a traditional stethoscope, the stethoscope head of the stethoscope is replaceable, stethoscoping modes can be selected, the volume of the stethoscope can be adjusted, recording, storage, timekeeping, heart rate displaying and wireless communication can be achieved, the operation is easy, use is convenient, and the stethoscope can be used by medical workers and used for teaching activities.

Description

technical field [0001] The patent of the present invention relates to the field of medical equipment, and in particular proposes a portable digital stethoscope. Background technique [0002] The stethoscope is an important tool for diagnosing diseases of the respiratory system and cardiovascular system. Sprague) and Bowles (Bowles) etc. have formed the traditional acoustic stethoscope that is generally used now after continuous improvement. The traditional acoustic stethoscope mainly includes a stethoscope head (chest piece), a conductive part (rubber tube), and a listening part (earpiece). [0003] The principle of the traditional acoustic stethoscope is roughly as follows: the sound pickup part is a large membrane cavity, and the sound waves in the body vibrate the diaphragm of the stethoscope, thereby driving the air inside the stethoscope to vibrate accordingly. If it is thin and narrow, the vibration amplitude of this part of the air is larger than that in the membran...

AI Technical Summary

Problems solved by technology

[0004] Although traditional stethoscopes are widely used, the following problems have been found during use: heart sound signals, breath sound signals and other sound signals are extremely weak, difficult to capture, susceptible to environmental interference, and poor in accuracy; sound waveforms are complex, and in the process of transmission Distortion will occur. The longer the stethoscope hose, the more likely it will be distorted, and it will be limited by the inherent hearing of the human ear; the traditional stethoscope can only be auscultated by one doctor, which is not conducive to comprehensive consultation of the disease, and it is not convenient for medical schools. Teaching about auscultation courses; doctors often need to count heart rate when using a stethoscope, so it must be done with the help of a watch or other timing tools; auscultation requires a doctor to make a close-up diagnosis. For some infectious diseases, the doctor may be infected by the patient and cannot achieve non-contact auscultation

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