CN201005711Y - Multifunctional combined type stethoscope - Google Patents

Abstract

The utility model relates to a composite stethoscope with multiple functions belonging to the technical field of medical instruments. The stethoscope is connected by a chest-connecting end (1), a sound transmission pipeline (2), an ear-connecting end (3), sound picking-up devices (5) and (6), an audio prime amplifier (9), a power amplifier (10), an ear microphone (7), a frequency-modulation transmitting module (17), an A-to-D converter (12), a microprocessor (13), a D/A converter (14), a storage chip (15) and an USB interface circuit (16) in order. The utility model is substantially characterized in that the stethoscope sound comprises both a sound transmitting pipeline transmitted by air and an electric acoustic amplifier, and the two pipelines are interconnected and form a combination. Compared with existing stethoscopes, the utility model has the advantages that working modes (pure sound transition mode or electric sound mixing mode) can be flexibly changed according to requirements. Placement compensation can be produced when acoustic acuity of users recline. Further the utility model comprises functions of radio ejection, recording storage and connection with a PC device and the like, thereby adapting for teaching and remote medical treatment.

Description

The multifunctional composite stethoscope

Affiliated technical field

This utility model belongs to medical apparatus and instruments and medical teaching equipment manufacturing technology field, be a kind of traditional stethoscope and have that audio frequency amplifies, multifunctional composite stethoscope that the electronic stethoscope of emission, storage, online transmission, editting function combines.

Background technology

Auscultation is a kind of important method of physical examination.The tradition stethoscope is made up of junctor spare, flexible pipe and lug spare three parts, and the acoustical signal that sends by junctor spare collection examinee health passes to doctor's in ear again through flexible pipe and lug spare (intraluminal air).The stethoscopic advantage of tradition is that structure tube list, auscultatory sound are undistorted; Shortcoming is just to can not hear clearly when auscultatory sound too weak (as: patient is highly weak, fat, emphysema, thoracic wall edema etc.) or environment are noisy.In addition, old doctor often has auditory dysesthesia, with the auscultation of can not being satisfied with of traditional stethoscope.In order to overcome traditional stethoscopic shortcoming, multiple electronic stethoscope has appearred.But these electronic stethoscopes all do not have the stethoscopic transaudient pipeline of tradition without exception, all be to deliver to the insert earphone auscultation after auscultatory sound is amplified, and the enlargement ratio of sending into the acoustical signal of two insert earphones equate.Therefore at present the shortcoming of electronic stethoscope is: when auscultatory sound is not weak, not only seems unnecessary but also noise jamming and distortion may occur; When doctor's diotic hearing power decline varying degree, can not accomplish to amplify targetedly by the sound that insert earphone spreads out of, compensate targetedly.Generally speaking, existing stethoscope all can not be according to the needs transformation working pattern of practical situation.

Now the auscultatory sound record is generally only limited to the description of literal, though the standard of classify and grading is arranged, that also is individual's sensation of examiner.This protocol mode had both influenced accumulation, analysis and the summary of clinical data, also was unfavorable for the raising of doctor's auscultation level.Particularly now a lot of hospitals are all setting up patient's electronic medical record, are carrying out tele-medicine, and this can carry out objective record, long-distance transmissions, the permanent ways and means of preserving, can editing to auscultatory sound with regard to needing.Traditional stethoscope and existing electronic stethoscope all can't satisfy these requirements.

In addition, existing stethoscope can easily not be applied to clinic.Use traditional bull stethoscope, a lot of students check that round a patient patient is difficult to stand; Use the electronic stethoscope of band public address equipment, having destroyed the ward quiet environment all is a pessimal stimulation to all patients.Therefore, consider, also need neither to increase patient's misery, make things convenient for teacher to say again to ungird and teach auscultation instrument from the angle of clinic.

Summary of the invention

The purpose of this utility model is exactly at the existing problem and shortage part of current stethoscope, and a kind of transformation working pattern according to actual needs is provided, and the multifunctional composite stethoscope that can amplify auscultatory sound, launch, store, transmit on the net, edit.

Technical solution of the present utility model is: a kind of multifunctional composite stethoscope, be formed by connecting in order by traditional auscultation device and electroacoustic auscultation device, its principal character is: the existing transaudient passage through transfer of air of auscultatory sound has the electroacoustic amplification channel again, and two passages are interconnected to form an integral body.

The described traditional auscultation device of this utility model technical solution comprises traditional stethoscopic structure divisions such as connecing breast end, transaudient pipeline and ear piece, and auscultatory sound is passed in doctor's the ear through connecing breast end, transaudient pipeline, ear piece.

The described electroacoustic auscultation of this utility model technical solution device, be to guarantee under the complete prerequisite of transaudient passage, the electroacoustic components and parts are made up in order, comprise: pick up, the audio frequency pre-amplifier (requires high-fidelity and low frequency response good, enlargement ratio is no more than 20 times), Single Chip Microcomputer (SCM) system (comprising: the A/D conversion, microprocessor, storage chip, D/A conversion and usb circuit), power amplifier, frequency modulation transmitter module (about transmitting range 10m), components and parts such as insert earphone, except that pick up and two insert earphones, other components and parts all are placed in the hardware box.Hardware box is placed on the crotch and the firm fixation of transaudient pipeline.Multifunctional composite stethoscope structural representation such as Fig. 1, circuit block diagram such as Fig. 2 of the stethoscopic electroacoustic auscultation of multifunctional composite parts.

The described electroacoustic auscultation of this utility model technical solution device comprises pick up, and described pick up is two miniature pick ups, place respectively transaudient pipeline inside and outside, promptly a pick up (5) directly communicates with transaudient duct chamber, and sealed.Can effectively gather like this and connect the collected acoustical signal of breast end, keep the integrity of transaudient pipeline again, make it to continue to play a role (Fig. 1).Another pick up (6) is installed in the upper end (near ear piece) of hardware box and outwards, takes teacher's voice signal.These two pick ups can be respectively, also can open simultaneously, if open simultaneously, together emission can stack up auscultatory sound and explanation sound.

The described electroacoustic auscultation of this utility model technical solution device comprises insert earphone, respectively there is one about described insert earphone, comprise: shell, Microspeaker, vibrating diaphragm and resonant cavity, the horizontal part of its resonant cavity and transaudient pipeline ear piece is connected, and axis be consistent (Fig. 3).The auscultatory sound that amplifies through electroacoustic is exported by Microspeaker like this, be enhanced through vibrating diaphragm and resonant cavity, audio is also more approaching directly to carry out auscultation with stethoscope, and at the horizontal part of ear piece, sound that Microspeaker sends and the sound generating stack of transmitting through transaudient pipeline.In addition, the volume of the Microspeaker on left and right both sides can be regulated respectively, can adapt to the go down personnel of degree varies of diotic hearing power and use.

The beneficial effects of the utility model are: this utility model has merged the advantage of traditional stethoscope and electronic stethoscope, is a kind of multifunctional composite stethoscope.User can determine the auscultation mode according to practical situation: can close electroacoustic and amplify when traditional stethoscope use when auscultatory sound is louder; , auscultatory sound noisy when environment crossed weak or enabled the electroacoustic amplification during doctor's auditory dysesthesia, if the degree difference that doctor's diotic hearing power goes down, the volume that can regulate two insert earphones respectively compensates targetedly.Can enable emission function when band is taught students, explain sound from the auscultatory sound of patient body and teacher and launch by the mode of frequency modulation together, the student can receive with FM receiver around.So both needn't check patient repeatedly, can hear sound (auscultatory sound) that patient body sends and teacher's explanation sound again simultaneously, receive better teaching efficiency.The storage of when needs are preserved data, can recording, and can access at any time, playback and emission, so both can organize the consultation of doctors, examine the auscultation conclusion, can repeatedly impart knowledge to students again.This utility model can also dock with PC by USB interface, thereby the auscultatory sound of storage is edited arrangement; Deposit patient's the medium-term and long-term keeping of electronic medical record in; Can also transmit by network, realize the tele-medicine service.In addition, this utility model also has functions such as calendar, clock, memo pad, USB flash disk, and more convenient doctor uses.

Description of drawings

Fig. 1 is a multifunctional composite stethoscope structural representation.

The stethoscopic electroacoustic auscultation of Fig. 2 multifunctional composite component circuitry block diagram.

Fig. 3 is the stethoscopic insert earphone scheme of installation of multifunctional composite.

1 connects breast end 2 transaudient pipeline 3 ear pieces 4 hardware box 5 pick ups

6 pick ups, 7 insert earphones, 8 USB sockets, 9 audio frequency pre-amplifiers

10 power amplifiers, 11 Microspeakers, 12 A/D conversion

13 microprocessors, 14 D/A change 15 storage chips

16 usb circuits, 17 frequency modulation transmitter modules, 18 insert earphone shells

19 vibrating diaphragms, 20 resonant cavities

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment 1: when the loudness of auscultatory sound was enough, this utility model can work as traditional stethoscope.As shown in Figure 1, the doctor fills in ear piece (3) in the ear of oneself, closes the on and off switch of hardware box (4), will connect breast end (1) and place the auscultation position of patient body to collect auscultatory sound, passes in doctor's the ear through transaudient pipeline (2) and ear piece (3) again.

Embodiment 2: sound noisy when environment, auscultation is crossed weak or can be enabled the electroacoustic enlarging function during doctor's auditory dysesthesia.As shown in Figure 1, 2, 3, the doctor fills in ear piece (3) in oneself the ear, will connect the auscultation position that breast end (1) places patient body, opens the on and off switch and the pick up (5) of hardware box (4), closes pick up (6) and frequency modulation transmitter module (17).At this moment, the auscultatory sound signal that connects breast end (1) collection is divided into two-way in transaudient passage, and one the tunnel is traditional auscultation mode, and auscultatory sound arrives ear piece (3) through transaudient conduit (2); Another road is that electroacoustic amplifies mode, the auscultatory sound signal that pick up (5) receives in the transaudient passage passes to Microspeaker (11) through audio frequency pre-amplifier (9) and power amplifier (10), the sound that Microspeaker sends is transmitted back to the horizontal part of ear piece (3) again after vibrating diaphragm (19) and resonant cavity (20) are strengthened, superpose at this and auscultatory sound through transaudient pipeline (2) conduction, after send in doctor's the ear.If the degree that doctor's diotic hearing power goes down is not simultaneously, can regulate left and right volume respectively and regulate button, compensate targetedly.Preserve this auscultatory sound if desired and then press record button, the acoustical signal after the audio frequency prime is amplified (9) by A/D conversion (12), deposits storage chip (15) in through microprocessor (13) again.

Embodiment 3: when clinical band is taught students, can enable electroacoustic and amplify and the wireless transmit function.As shown in Figure 1, 2, 3, band religion teacher fills in ear piece (3) in oneself the ear, will connect the auscultation position that breast end (1) places patient body, opens on and off switch, pick up (5), pick up (6) and the emission switch of hardware box (4).Send into audio frequency pre-amplifier (9) and power amplifier (10) together by the auscultatory sound signal of pick up (5) collection with by the acoustical signal of pick up (6) collection band religion teacher explanation, launch through frequency modulation transmitter module (17) again by auscultatory sound after the two-stage amplification and explanation sound.The student can listen to FM receiver around.The students patient that needn't check repeatedly like this, and can also hear that when hearing various auscultatory sounds teacher explains targetedly, thus receive better teaching efficiency.If want to preserve this auscultatory sound, only need press record button again and get final product.

Embodiment 4: preserve accessing and playback of auscultation data, as shown in Figure 1, 2, user is opened the on and off switch of hardware box (4) earlier, the file name of the storage auscultatory sound that selected need access.Microprocessor (13) accesses audio files from storage chip (15), delivers to power amplifier (10) through D/A conversion (14), and repeated transmission is to Microspeaker (11), and user can be heard the sound of playback by ear piece (3).So both can carry out examining and holding a consultation repeatedly to patient's auscultatory sound; Also can open emission switch, launch for the student by frequency modulation transmitter module (17) and listen to.

Embodiment 5: as shown in Figure 3, by usb circuit (16) and USB socket, the multifunctional composite stethoscope can be connected with PC.So both can edit and put in order the auscultatory sound of storage; Also auscultatory sound can be deposited in patient's the medium-term and long-term keeping of electronic medical record; Also auscultatory sound can be transmitted by network, realize the tele-medicine service.This utility model also has functions such as memo pad, USB flash disk, calendar and clock demonstration in addition, and is convenient during use.

Claims (5)

1. a multifunctional composite stethoscope is formed by connecting in order by traditional auscultation device and electroacoustic auscultation device, and its principal character is: the existing transaudient passage through transfer of air of auscultatory sound has the electroacoustic amplification channel again, and two passages are interconnected to form an integral body.

2. multifunctional composite stethoscope as claimed in claim 1, it is characterized in that: the stethoscopic electroacoustic auscultation of a kind of multifunctional composite device comprises: pick up 1 (5), pick up 2 (6), audio frequency pre-amplifier (9), power amplifier (10), insert earphone (7), frequency modulation transmitter module (17), A/D changes (12), microprocessor (13), D/A changes (14), storage chip (15) and usb circuit (16), these devices connect combination in order, except that two insert earphones, other components and parts all are installed in the hardware box, hardware box is placed on the crotch and the firm fixation of transaudient pipeline, and on-off control is arranged.

3. multifunctional composite stethoscope as claimed in claim 1, it is characterized in that: a kind of multifunctional composite stethoscope has two pick ups, pick up 1 (5) passes the tube wall of transaudient pipeline (2), stretch into the tube chamber of transaudient pipeline (2) slightly, tight seal is carried out in the slit between pick up (5) and transaudient pipeline (2) tube wall; Pick up 2 (6) is installed in the top of hardware box (4), and outside box; Pick up 1 (5) and pick up 2 (6) all have the switch management to open respectively or simultaneously.

4. multifunctional composite stethoscope as claimed in claim 1, it is characterized in that: the stethoscopic insert earphone of a kind of multifunctional composite (7) is made up of insert earphone shell (18), Microspeaker (11), vibrating diaphragm (19) and resonant cavity (20), insert earphone shell and ear piece closely are connected to form one, the resonant cavity of insert earphone (20) directly communicates with the tube chamber of ear piece (3) horizontal part, and the horizontal part three of Microspeaker (11), resonant cavity (20) and ear piece (3) is on same axis.

5. multifunctional composite stethoscope as claimed in claim 1 is characterized in that: two Microspeakers (11) in the stethoscopic left and right insert earphone of a kind of multifunctional composite (7) connect different sound channels respectively, and independently volume adjusting is separately arranged.

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