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Intelligent mobile phone heart sound visible examination device and examination signal transmission method

A technology of signal transmission and stethoscope, applied in auscultation instruments, diagnosis, telephone communication, etc., can solve the problems of difficult diagnosis and treatment, difficulty in capturing typical pathological ECGs, etc.

Inactive Publication Date: 2009-09-23
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When many cardiovascular diseases occur, the typical pathological ECG signals are fleeting, and it is difficult to capture the typical pathological ECG when waiting to see a doctor, which brings difficulties to diagnosis and treatment to a certain extent

Method used

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  • Intelligent mobile phone heart sound visible examination device and examination signal transmission method
  • Intelligent mobile phone heart sound visible examination device and examination signal transmission method

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Embodiment Construction

[0015] The intelligent heart sound consultation device for a mobile phone of the present invention comprises a piezoelectric vibration sensor 1, a pre-voltage amplifier 2, and a mobile phone USB interface circuit 3; Connect the reverse input terminal of the operational amplifier U1, the output terminal of the operational amplifier U1 is connected to the microphone input terminal USBHSMIC in the USB interface circuit 3 of the mobile phone through the second capacitor C2 to transmit the signal to the mobile phone; the interface in the USB interface circuit 3 of the mobile phone has 5 Port 1 is grounded, port 2 is the microphone input port USBHSMIC, port 3 and port 4 are communication signal positive and negative interfaces USBCON+, USBCON- respectively, port 5 is the power port VCUSB; piezoelectric vibration sensor 1 and pre-voltage The power of the amplifier 2 is provided by the power port 5 of the USB interface.

[0016] The device uses the piezoelectric vibrating heart sound ...

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Abstract

The invention relates to an intelligent mobile phone heart sound visible examination device and an examination signal transmission method. The signal transmission method is attached on a mobile phone and used for carrying out visible examination for human heart sound signals, and the device is attached on the mobile phone and used for carrying out visible examination for human heart sound signals. The device utilizes a piezoelectric shock heart sound sensor to obtain heart sound signals and transmits the signals to a mobile phone through a USB interface of microphone input terminal of the mobile phone after the signals are amplified and filtered by a voltage preamplifier; the heart sound signals are stored by a recorder in the mobile phone and then compared with the normal heart sound signals stored in the mobile phone; and then waveform, heart rate and murmur grade are displayed on the display screen of the mobile phone, when the heart rate is over high or heart sound is abnormal, the mobile phone can show indication words, thereby the visible examination signal transmission is realized.

Description

technical field [0001] The invention proposes a method attached to a mobile phone for visual diagnosis of human heart sound signals. Background technique [0002] Heart sound detection and analysis is an important and economical means to understand the state of the heart and blood vessels, because the heart sound signal is a physiological signal that accompanies life. From 1843, George P.Cammann invented the binaural (two-channel) stethoscope (binaural stethoscope), to the design of Dr.Littmann of Harvard Medical School in the 1960s, with a dual-purpose chest piece (bell and membrane) Type) portable stethoscope, the traditional stethoscope has a history of more than 100 years, and has a high practical value for the diagnosis of patients' diseases. Today's advanced electronic stethoscope can amplify the sound by 18 times and can be connected to a PC for software analysis. For example, the Littmann stethoscope of the most famous 3M company, and the well-known brands include ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B7/00H04M11/00H04M1/725H04M1/72409H04M1/72433H04M1/72454
Inventor 成谢锋丁剑冰成雨含
Owner NANJING UNIV OF POSTS & TELECOMM
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