KR200288497Y1 - Stethoscope using bone transmission type - Google Patents

Abstract

The present invention relates to a portable cardiopulmonary diagnostic device (aka, stethoscope) used for auscultation of heart and lungs. In order to prevent complaining of pain in the ear, a hand-held cardiopulmonary system using a bone conduction method to reduce the pain of the ear and the clear stethoscope sound according to the bone conduction and the bone conduction technique which have been proposed recently It relates to a sound diagnosis device.

Description

Portable cardiopulmonary diagnostic device using bone conduction method {Stethoscope using bone transmission type}

The present invention relates to a portable cardiopulmonary diagnostic device (aka, stethoscope) used for auscultation of heart and lungs. In order to prevent complaining of pain in the ear, a hand-held cardiopulmonary system using a bone conduction method to reduce the pain of the ear and the clear stethoscope sound according to the bone conduction and the bone conduction technique which have been proposed recently It relates to a sound diagnosis device.

In general, the heart sound (heart sound) refers to the vibration or sound caused by the sudden acceleration and deceleration of blood, mainly due to the opening and closing of the heart valves or the sudden tension of the intracardiac structure.

In addition, the pulmonary sound is divided into two types, the respiratory sound and the incidental pulmonary sound. The respiratory sound is a normal noise that can be heard in the chest wall during respiration, and the incidental pulmonary sound is an abnormal sound added to the respiratory sound. Indicates a disease.

The current analysis of the disease is performed by the clinician's subjective judgment by obtaining information through a portable cardiopulmonary sound diagnosis device called a stethoscope.

Therefore, a number of improvements have emerged because the stethoscope sound must be very clear and clear and it needs to be separated from the surrounding noise. For example, an electronic stethoscope that collects a clearer cardiopulmonary sound using an electronic microphone. For example.

However, as described above, the electronic stethoscope is also limited to the earphone type according to the conventional air conduction method.

Such a conventional stethoscope needs to be separated from the surrounding noise, as described above, so that the earpiece is very strongly in contact with the forearm groove. There is a very frequent occurrence of.

An object of the present invention for solving the problems of the prior art described above relates to a portable cardiopulmonary diagnostic device used for auscultation of heart sound and lung sound. In the case of practitioners who need to be worn for a long time in the department, to prevent acute pain in the ear, a combination of the recently proposed electronic stethoscope and bone conduction technology is used to reduce the clear auscultation and ear pain due to bone conduction. It is to provide a portable cardiopulmonary diagnostic device using a bone conduction method.

1 is an exemplary view of the appearance of a portable cardiopulmonary sound diagnosis device using a bone conduction method according to the present invention.

2 is an exemplary cross-sectional view of the heartbeat collecting unit referred to with reference numeral 10 of FIG. 1.

Figure 3 is an exemplary block diagram of a portable cardiopulmonary sound diagnosis device using a bone conduction method according to the present invention.

Figure 4 is an exemplary state of wearing a portable cardiopulmonary sound diagnosis device using a bone conduction method according to the present invention.

Features of the portable cardiopulmonary diagnostic device using a bone conduction method according to the present invention for achieving the above object, a microphone for collecting the heart beat sound; A primary amplifier for outputting at a suitable impedance to amplify each signal detected and input by the microphone; A filter for removing noise components of the amplified signal; A secondary amplifier for amplifying each signal in a waveform range that does not include an output waveform of the cardiopulmonary signal from which noise is removed through the filter; A pair of vibration converters for converting the cardiopulmonary sound output through the secondary amplifier into mechanical vibrations; A pair of vibration amplifiers that are matched one-to-one to the pair of vibration converters and amplify the converted vibration level by a predetermined level or more; And a pair of bone conduction vibrators, which are machine-electrical conversion elements, that are matched one-to-one with the pair of vibration amplifiers and hear a sound by vibrating a predetermined bone conduction based on the amplified signal.

The above object and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

1 is an exemplary view of the appearance of a portable cardiopulmonary sound diagnosis device using a bone conduction method according to the present invention, Figure 2 is a cross-sectional view of the heart rate measurement unit, Figure 3 is a portable cardiopulmonary sound using a bone conduction method according to the present invention It is an example block diagram of a diagnostic apparatus.

Referring to the configuration of the portable cardiopulmonary sound diagnosis apparatus using the bone conduction method according to the present invention with reference to Figures 2 and 3 attached, it is detected by the microphone (10a) and the ventricular depolarization detection electrode (3) to collect the cardiac sound Pre-amplifier 22 for matching and outputting with proper impedance to amplify each input signal, filter 24 for removing noise components of amplified signal, and output waveform of noise-removed cardiopulmonary signal are not included. A main amplifier 30 or the like which amplifies each signal within a non-waveform range, preferably in the range of 10 Hz to 5 kHz, is included in the heartbeat measurement unit referred to by reference numeral 10.

Thereafter, the first and second bone conduction speakers 40a and 40b may include first and second vibration converters 42a and 42b for converting the cardiopulmonary sound output from the cardiac sound measurement unit into mechanical vibration, First, the first and second vibration amplifiers 44a and 44b for amplifying the vibration level converted by the second vibration converters 42a and 42b for a predetermined level or more, and the mechanical electrical conversion to vibrate a predetermined bone conduction to listen to sound. The first and second bone conduction vibrators 46a and 46b as elements are included.

At this time, the first and second bone conduction speakers (40a, 40b) is in close contact with the human temporal part (preferably the bone formation part of the human body) to listen to the sound through the bone before hearing, earring type or The headband may be configured in various ways such as a headphone / headset attached, and the description of the present invention shows an example of a headphone / headset with a headband attached as shown in FIG. 1. The two bone conduction speakers 40a and 40b are mounted to the fixing part of the headset 60, which is referred to by reference numerals 50a and 50b in FIG.

In addition, as shown in the accompanying heartbeat measurement unit 2, the microphone 10a is installed in the center of the bottom of the housing 1 for measuring and collecting the cardiopulmonary signal. The microphone 10a applied in the present invention is not a general non-contact type, but a body contact type microphone including an impedance matching circuit using a piezoelectric film.

In addition, two ventricular depolarization detection electrodes 3 detecting ventricular depolarization waveforms are disposed on both sides of the microphone 10a to distinguish the first and second heart sounds.

The housing 1 for mounting the microphone 10a and the ventricular depolarization detection electrode 3 is fitted with a rubber cover 4 in contact with a body at a lower end thereof, and a microphone 10a at an upper part thereof. The upper cover 5 which is two members is interposed, and the bottom cover 6 made of brass is fixed to fix the rubber cover 4.

In addition, the signal detected by the microphone 12 and the detection signal from the ventricular depolarization detection electrode 13 are configured to be electrically connected to a terminal of the analog circuit stage 17 which will be described later.

In addition, the bone conduction seating portions 50a and 50b on which the pair of bone conduction speakers 40a and 40b provided in the headphones are mounted are closely attached to the bone conduction portion of the human temporal head as shown in FIG. 4.

Figure 4 is an exemplary state of wearing a portable cardiopulmonary sound diagnosis device using a bone conduction method according to the present invention

The pair of bone conduction speakers 40a and 40b is preferably mounted at a location where the bone conduction vibrator is transmitted to the bone conduction when the oscillation vibrates so that the sound can be accurately reproduced. The cardiopulmonary sound is applied by the bone conduction awareness method in the bone conduction speakers 40a and 40b.

In the cardiopulmonary sound applying method through the bone conduction speakers 40a and 40b, when the signal output from the main amplifier 30 of the cardiopulmonary sound measuring unit is applied to the vibration converters 42a and 42b, the vibration converter 42a , 42b) converts an electrical signal into a vibration signal, and the converted vibration signal is amplified by a vibration signal of a predetermined level or higher in each of the vibration amplifiers 44a and 44b, and then vibrates the bone bone to actually hear sound. Oscillating the bone conduction vibrators 46a and 46b.

Then, the sound may be heard through the bone conduction speakers 40a and 40b provided with the bone conduction vibrator and closely attached to the bone conduction area according to the vibration operation of the bone conduction vibrators 46a and 46b.

While the invention has been shown and described in connection with specific embodiments, it is understood that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

When providing a portable cardiopulmonary sound diagnosis device using a bone conduction method according to the present invention as described above, according to the earpiece of the conventional stethoscope is inserted into the recess of the user's ear can be used for a long time or frequent insertion and removal process The pain caused by the problem is to be resolved through the bone conduction method.

Claims (2)

A microphone for collecting heart sounds; A primary amplifier for outputting at a suitable impedance to amplify each signal detected and input by the microphone; A filter for removing noise components of the amplified signal; A secondary amplifier for amplifying each signal in a waveform range that does not include an output waveform of the cardiopulmonary signal from which noise is removed through the filter; A pair of vibration converters for converting the cardiopulmonary sound output through the secondary amplifier into mechanical vibrations; A pair of vibration amplifiers that are matched one-to-one to the pair of vibration converters and amplify the converted vibration level by a predetermined level or more; And The bone conduction method is characterized in that it includes a pair of bone conduction vibrators which are one-to-one matched to the pair of vibration amplifiers and mechanically converting elements to hear sound by vibrating predetermined bone conduction according to the amplified signal. Portable cardiopulmonary sound diagnosis device using. The method of claim 1, The bone conduction speaker composed of the vibration converter, the vibration amplifier, and the bone conduction vibrator is in close contact with the human temporal part (preferably the bone formation part of the human body) to listen to the sound through the bone conduction hearing, or earring type for convenience of use. Portable cardiopulmonary diagnostic device using a bone conduction method characterized in that the headband is attached to any one of the headphones / headset attached.