CN201602790U - Electronic timing-counting stethoscope - Google Patents
Electronic timing-counting stethoscope Download PDFInfo
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- CN201602790U CN201602790U CN2009203535597U CN200920353559U CN201602790U CN 201602790 U CN201602790 U CN 201602790U CN 2009203535597 U CN2009203535597 U CN 2009203535597U CN 200920353559 U CN200920353559 U CN 200920353559U CN 201602790 U CN201602790 U CN 201602790U
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Abstract
The utility model relates to an electronic timing-counting stethoscope, comprising an ear ring, sleeve, a rubber pipe and a main control box, wherein the ear rings, the sleeve, the rubber pipe and the main control box are connected and sheathed tightly in sequence; the main control box comprises a stethoscope head and a main control box body; the main control box body is provided with a switch, a key and a liquid crystal display screen; the stethoscope head, the main control box, the sleeve and the ear ring adopt double-layer sealing channels; a signal acquisition circuit of a main control box circuit is formed by the connection of a capacitor-type electret microphone, an operational amplifier and a time base circuit in sequence; the time base circuit outputs a pulse signal so as to connect to a single chip microcomputer; the single chip microcomputer carries out signal identification and operation and outputs the signal so as to connect to the liquid crystal display; and the sleeve also can be sheathed with an electronic watch box. The electronic timing-counting stethoscope uses the vibrating principle for signal acquisition, is not distorted when in direct auscultation, has convenient operation and use, humanization, natural increase of audition effect, intuitive and accurate electronic display, is beneficial to clinical diagnosis and has low price.
Description
Technical field:
This utility model relates to technical field of medical instruments, specifically is meant a kind of electronic timing counting stethoscope.
Background technology:
Stethoscope is a kind of indispensable instrument that medical personnel are used to diagnose the illness.Tradition stethoscope appearance applying clinical more than 200 year is not so far all obtained more improvement.When meter is listened heart rate, need see table.Silent meter heart rate, not only loaded down with trivial details but also science not.Some foreign electronic stethoscopes such as Switzerland, Canada are arranged in recent years, use the electrode principle, the contact patient skin uses inconvenience, simultaneously, need switch on during auscultation, and sound amplifies more than ten times, and the sound effect distortion influences clinical diagnosis, and costs an arm and a leg.
The utility model content:
Technical problem to be solved in the utility model is: solve the problem that above-mentioned prior art exists, and provide that a kind of signals collecting uses that vibration principle, direct auscultation are undistorted, easy for operation, hommization, hearing effect increase naturally, the electronics intuitive display is accurate, help clinical diagnosis and low-cost electronic timing is counted stethoscope.
The technical solution adopted in the utility model is: this electronic timing counting stethoscope, comprise earrings, sleeve pipe, rubber plastic pipe, primary control box, the earrings far-end puts sleeve pipe, be connected with rubber plastic pipe one end and be locked, the rubber plastic pipe other end is connected with primary control box and is locked, primary control box comprises auscultation head and primary control box body, auscultation head and primary control box body coincide and tighten and be communicated with, switch and button, LCDs are installed on the primary control box body, and auscultation head, primary control box, rubber plastic pipe, sleeve pipe, earrings adopt the double-layer seal passage; The primary control box circuit is connected to form by the two large divisions: a part is for signal acquisition circuit, and another part is single-chip microcomputer and peripheral circuit thereof, liquid crystal display; Signal acquisition circuit is connected to form successively by condenser type electret microphone, operational amplifier, time base circuit, the condenser type electret microphone is transformed into analog electrical signal output with the pressure signal of heartbeat and is connected to operational amplifier, operational amplifier amplifies the back with analogue signal and connects the triggering time base circuit, the time base circuit output pulse signal is connected to single-chip microcomputer, single-chip microcomputer carries out signal identification, computing, and output is connected to liquid crystal display.
In the technique scheme, but suit electronics watchcase also on the sleeve pipe respectively has the setting-up time dedicated button about on the wrist-watch in electronics watchcase front.
Electronic timing counting stethoscope of the present utility model had both overcome traditional stethoscopic shortcoming, kept traditional stethoscopic advantage again, keeping on traditional stethoscopic auscultation function basis, not only strengthened auscultation effect 1-2 naturally doubly, also increased simultaneously regularly, counted heart rate and accutron function, solved the medical worker fully and when examination, seen the wrist-watch rapid pulse, learning this loaded down with trivial details work of heart rate by heart.This utility model not only increases and has strengthened hearing effect, also increased the electronic timing tally function simultaneously, need not to see the table counting, the heart rate of can testing oneself, greatly facilitate medical personnel's diagnosis and treatment work, treatment effect and work efficiency have been improved, the indispensable apparatus of a medical first aid job such as the real first aid, battlefield rescue that is used for diagnosis and treatment health check-up, teaching and great medical events for each medical worker of section of hospitals at different levels.
Every function of the present utility model is as follows:
The auscultation function:
Keeping under traditional stethoscope function prerequisite, hearing effect increases 1～2 times naturally, double-deck envelope road technology is all adopted in the junction, select the plastic cement pipe of the special-purpose special thickening tube wall of pc material of import medical treatment for use, at utmost reduced the interference of environmental noise, the special-purpose diaphragm that import high-quality polyester material is made.
Operating function:
Three kinds of fast and simple operational approach obtain heart rate number of times accurately.Every the underwear operation, not only removed Ms's embarrassment from, more can leave patient's warmth at arctic weather, also can cooperate blood pressure measuring to take blood pressure flexibly simultaneously.
Timing function:
From 15 seconds, 30 seconds, 1 minute, 2 minutes, 3 minutes to 4 minutes, auscultation, the heart of measuring patient, pulmonary, abdominal cavity and rapid pulse diagnosis required time accuracy were good.
Tally function:
Measure patient's per minute heart rate number of times in 15 seconds rapidly and accurately, removed from fully and will see that wrist-watch learns this loaded down with trivial details link of heart rate by heart.
Electricity-saving function:
Meter heart rate and regularly end, data show disappeared after 1 minute, entered the economize on electricity resting state automatically.
Restart function:
Liquid crystal display screen is in video data state, resting state and regularly carry out state, will lack ring one by any key buzzer, enters SBR at any time.
Presentation Function:
The per minute heart rate number of times that can clearly show patient on the LCDs; Also can clearly show the selected time on the LCDs; Each video data of using disappeared in 1 minute; Can carry out the meter heart rate and the fixed cycle operator of a new round.
Self-test function:
Not auscultation, the auscultation head is steadily placed own apical region of heart, can accurately measure the heart rate number of times of own per minute.
Watch function:
Concrete single-minded accutron accurately, the moment provides the convenience of time.
Prompt facility:
The per minute heart rate number of times that can clearly show patient on the LCDs; Also can clearly show the selected time on the LCDs; Each video data of using disappeared in 1 minute; Can carry out the meter heart rate and the fixed cycle operator of a new round.
Self-test function:
Not auscultation, the auscultation head is steadily placed own apical region of heart, can accurately measure the heart rate number of times of own per minute.
Watch function:
Have single-minded accutron accurately, the convenience of time is provided constantly.
Prompt facility:
The meter heart rate begins, timing startup and dormancy start, all short ring of buzzer one, and prompting is started working, meter heart rate and regularly finish all short ring of buzzer three, prompting end-of-job.
Technical specification:
Meter heart rate range: 40 times～200 times/minute
Meter heart rate precision: ± 2%
Precision between timing: ± 2%.
This utility model is compared as follows with state's electronic stethoscopes such as external Switzerland, Canada:
The external electronic stethoscope signals collecting of this utility model is used vibration principle, can be convenient to operation every the underwear Information Monitoring, not only remove signals collecting from and used the electrode principle, the embarrassment that needs the Ms, more can leave the contact patient skin at arctic weather, need not switch on when inconvenient patient puts a little warm auscultation during operation, can direct auscultation, need switch on and to use when producing auscultation, the product design is unique, adopt double-deck envelope road technology, listen auscultation sound to amplify more than ten times, sound audio fruit increases the efficiency-timed fruit distortion of 1-2 naturally, influence the material benefit of clinical diagnosis price, about 600 yuans, suitable costing an arm and a leg, external product all closes doctor and family 2000 and uses and buy more than the unit
Description of drawings:
Fig. 1 is this utility model structural representation
Fig. 2 is this utility model electrical schematic diagram
The specific embodiment:
Referring to Fig. 1, electronic timing counting stethoscope of the present utility model, comprise earrings 1, sleeve pipe 2, rubber plastic pipe 3, primary control box 4, the earrings far-end puts sleeve pipe, be connected with rubber plastic pipe one end and be locked, the rubber plastic pipe other end is connected with primary control box and is locked, primary control box 4 comprises auscultation 5 and primary control box body 6, auscultation head and primary control box body coincide and tighten and be communicated with, switch and button, LCDs are installed on the primary control box body, and auscultation 5, primary control box 4, rubber plastic pipe 3, sleeve pipe 2, earrings 1 adopt the double-layer seal passage; Connected to form by the two large divisions referring to Fig. 2 primary control box circuit: a part is for signal acquisition circuit, and another part is single-chip microcomputer and peripheral circuit thereof, liquid crystal display; Signal acquisition circuit is connected to form successively by condenser type electret microphone, operational amplifier, time base circuit, the condenser type electret microphone is transformed into analog electrical signal output with the pressure signal of heartbeat and is connected to operational amplifier, operational amplifier amplifies the back with analogue signal and connects the triggering time base circuit, the time base circuit output pulse signal is connected to single-chip microcomputer, single-chip microcomputer carries out signal identification, computing, and output is connected to liquid crystal display.
In the technique scheme, but suit electronics watchcase 7 also on the sleeve pipe respectively has the setting-up time dedicated button about on the wrist-watch in electronics watchcase front.
Referring to Fig. 2, this utility model electronic timing counting stethoscope electrical schematic diagram mainly is made up of the two large divisions.Most is a signal acquisition circuit, and it is made up of condenser type electret microphone, amplifier LM358 and CMOS time base circuit 7555 and peripheral circuit thereof.Electret microphone is transformed into the signal of telecommunication with the pressure signal of heartbeat, exports by capacitor C by its 1 foot
7, C
8Carry out High frequency filter after coupling capacitance C
9Input discharge circuit LM358 (U
3) 6 foot underfooting amplify resistance R
12Determined the amplification of circuit with the input circuit impedance of first order amplifier, the signal after the amplification by the output of 7 feet through coupling capacitance C
12, be input to 2 feet of second amplifying circuit LM358.These circuit 3 feet pass through resistance R
14Ground connection has constituted a monolateral positive signal output signal, can have enough amplitudes to open the threshold threshold of back time base circuit to guarantee amplifying signal, is exported after coupling capacitance C by 1 foot of LM358 through the two-stage calculation amplifier amplifying signal
14Enter 6 feet of time base circuit 7555.Time base circuit 7555 (U
4) formed a monostable circuit with its peripheral circuit.Surpassed threshold signal, trigger this monostable circuit counter-rotating and formed a pulse signal, to become pulse signal above the analog-signal transitions of thresholding like this, and form the pulse signal of monolithic function identification, and the interfering signal that does not surpass threshold value is just all by filtering.This circuit is like this pressure signal to be transformed into the signal of telecommunication, is transformed into pulse signal again after amplifying, thereby has finished the acquired original task of signal.
Second largest part is to finish multinomial functions such as human computer conversation, information Recognition and Acquisition and demonstration by 8 microcomputer SP468 and peripheral circuit thereof and liquid crystal display, when the pulse signal of the 3 feet output of basic at that time circuit 7555 is sent into single-chip microcomputer 12 feet, the signal Recognition and Acquisition program of single-chip microcomputer will be collected useful heartbeat signal from these pulse signals, and the beats of per minute is calculated by operation program, give liquid crystal display circuit, finish identification, collection counting and the demonstration work of heartbeat signal.
Button R1, R2 are provided with the initiating task of work and every function by 16, the 17 foot deadlines of single-chip microcomputer.
Reference voltage T
3Warning work when providing the reference voltage of 3.3V and single-chip microcomputer together to finish cell voltage to be lower than 3.3V for single-chip microcomputer.Single-chip microcomputer is by 14 foot control system audion T
2Drive buzzer, formed prompt tone generation circuit and finished needed prompt tone of each period.
Finish the sleep mode of electronic stethoscope by the control of singlechip function and 13 feet.Enter resting state, single-chip microcomputer is not only controlled self big circuit and is quit work, and is cut away the power supply of signal acquisition circuit simultaneously by 13 feet, finishes the dormancy task.
Oscillating circuit in crystal XL1 and capacitor C 5, C6 and the single-chip microcomputer comes together to finish Generation of Clock Signal, for the work of single-chip microcomputer provides the clock reference signal.
Resistance R
1And capacitor C
4Constituted the electrification reset task that electrify restoration circuit is finished single-chip microcomputer with the single-chip microcomputer internal circuit.50～59,10 control lines of single-chip microcomputer and liquid crystal display everybody, each stroke control pin link, and by the data display program control of single-chip microcomputer, finish the demonstration work of various data and information.
More than the main circuit function of electronic stethoscope has been done simple an introduction, so that the main process of its work to be described.
Claims (2)
1. an electronic timing is counted stethoscope, it is characterized in that comprising earrings, sleeve pipe, rubber plastic pipe, primary control box, the earrings far-end puts sleeve pipe, be connected with rubber plastic pipe one end and be locked, the rubber plastic pipe other end is connected with primary control box and is locked, and primary control box comprises auscultation head and primary control box body, and auscultation head and primary control box body coincide and tighten and be communicated with, switch and button, LCDs are installed on the primary control box body, and auscultation head, primary control box, rubber plastic pipe, sleeve pipe, earrings adopt the double-layer seal passage; The primary control box circuit is connected to form by the two large divisions: a part is for signal acquisition circuit, and another part is single-chip microcomputer and peripheral circuit thereof, liquid crystal display; Signal acquisition circuit is connected to form successively by condenser type electret microphone, operational amplifier, time base circuit, the condenser type electret microphone is transformed into analog electrical signal output with the pressure signal of heartbeat and is connected to operational amplifier, operational amplifier amplifies the back with analogue signal and connects the triggering time base circuit, the time base circuit output pulse signal is connected to single-chip microcomputer, single-chip microcomputer carries out signal identification, computing, and output is connected to liquid crystal display.
2. electronic timing according to claim 1 counting stethoscope is characterized in that going back on the sleeve pipe suit electronics watchcase, the setting-up time dedicated button is respectively arranged about on the wrist-watch in electronics watchcase front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203535597U CN201602790U (en) | 2009-12-30 | 2009-12-30 | Electronic timing-counting stethoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203535597U CN201602790U (en) | 2009-12-30 | 2009-12-30 | Electronic timing-counting stethoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201602790U true CN201602790U (en) | 2010-10-13 |
Family
ID=42947495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203535597U Expired - Fee Related CN201602790U (en) | 2009-12-30 | 2009-12-30 | Electronic timing-counting stethoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201602790U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125440A (en) * | 2011-01-12 | 2011-07-20 | 相爱霞 | Electronic timing heartbeat counting stethoscope |
| CN105310714A (en) * | 2015-11-12 | 2016-02-10 | 成都艾克尔特医疗科技有限公司 | Integrated visual stethoscope for oximetry |
-
2009
- 2009-12-30 CN CN2009203535597U patent/CN201602790U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125440A (en) * | 2011-01-12 | 2011-07-20 | 相爱霞 | Electronic timing heartbeat counting stethoscope |
| CN105310714A (en) * | 2015-11-12 | 2016-02-10 | 成都艾克尔特医疗科技有限公司 | Integrated visual stethoscope for oximetry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20131230 |