CN203089179U - Stethoscope - Google Patents
Stethoscope Download PDFInfo
- Publication number
- CN203089179U CN203089179U CN 201320073930 CN201320073930U CN203089179U CN 203089179 U CN203089179 U CN 203089179U CN 201320073930 CN201320073930 CN 201320073930 CN 201320073930 U CN201320073930 U CN 201320073930U CN 203089179 U CN203089179 U CN 203089179U
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- CN
- China
- Prior art keywords
- stethoscope
- signal
- heart rate
- signals
- receives
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The utility model provides a stethoscope. The stethoscope solves the problem that a stethoscope in the prior art can not calculate a heart rate, and the size of the existing stethoscope is not increased. The stethoscope comprises a membrane type stethoscope head, a rubber pipe and ear pieces, and further comprises a heart rate meter arranged inside the membrane type stethoscope head. A liquid crystal display screen is arranged on a stainless steel shell on the back surface of the membrane type stethoscope head and receives hear rate signals output by the heart rate meter. The heart rate meter comprises a sound sensing module which converts sound signals of heartbeat into pulse signals, a signal amplifier which amplifies the pulse signals output by the sound sensing module, a D trigger which receives output signals of the signal amplifier and outputs square signals of standard voltage, and a single chip microcomputer which receives the square signals output by the D trigger. The number of high-level pulses is calculated through a counter, and heart rate signals can be calculated by dividing the number of the high-level pulses by a timing value of a timer.
Description
Technical field
This utility model relates to medical instruments field, is meant a kind of stethoscope especially.
Background technology
The scientific and technological content of modern medical instrument is more and more higher, and the diagnosis and treatment means are also more and more, but stethoscope still is the most frequently used diagnosis and treatment instrument of doctor.Stethoscope mainly is made up of chest piece, sebific duct and ear piece, helps the sound of doctor's auscultation vein, tremulous pulse, the heart, lung, enteral portion, even can hear the hear sounds of fetus in the parent.The doctor uses the wrist-watch timing usually in the test heart rate, to heart beating time counting number, it is inaccurate that this method is calculated heart rate, and pretty troublesome then.
The utility model content
The utility model proposes a kind of stethoscope, solved the problem that stethoscope of the prior art can't calculate heart rate.
The technical solution of the utility model is achieved in that
A kind of stethoscope comprises membranous type can, sebific duct and ear piece, also comprises the cardiotachometer that is arranged on membranous type can inside, and the stainless steel casing at the membranous type can back side is provided with LCDs, receives the heart rate signal of cardiotachometer output; Described cardiotachometer comprises: the sound induction module is converted to pulse signal with the audio signal of heart beating; Signal amplifier, the pulse signal that described sound induction module is exported carries out the signal amplification; D type flip flop receives the output signal of described signal amplifier, the square-wave signal of outputting standard voltage; Single-chip microcomputer receives the square-wave signal of described d type flip flop output, and calculates the number of high level pulse by enumerator, and being divided by with the clocking value of timer calculates heart rate signal.
Alternatively, also comprise the button cell of powering to described cardiotachometer.
Alternatively, described sebific duct is a pvc pipe.
The beneficial effects of the utility model are: the stethoscope volume does not increase, and only at the inner cardiotachometer that increases of membranous type can, at stainless steel casing LCDs is set, and can accurately calculate patient heart rate, and is simple and convenient.
Description of drawings
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the control block diagram of the stethoscopic cardiotachometer of this utility model.
The specific embodiment
Below in conjunction with the accompanying drawing among this utility model embodiment, the technical scheme among this utility model embodiment is clearly and completely described, obviously, described embodiment only is this utility model part embodiment, rather than whole embodiment.Based on the embodiment in this utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of this utility model protection.
Stethoscope of the present utility model, comprise membranous type can, sebific duct and ear piece, also comprise the cardiotachometer that is arranged on membranous type can inside, the stainless steel casing at the membranous type can back side is provided with LCDs, the heart rate signal of reception cardiotachometer output also shows, the doctor can obtain patient's heart rate value in auscultation.
As shown in Figure 1, cardiotachometer comprises: sound induction module 10, the audio signal of heart beating is converted to pulse signal, pulse response signal the variation of heartbeat; Signal amplifier 20, the pulse signal that sound induction module 10 is exported carries out the signal amplification; D type flip flop 30, the output signal of receiving signal amplifier 20, the square-wave signal of outputting standard voltage is converted to the continuous and irregular pulse signal of sound induction module output the square-wave signal of standard; Single-chip microcomputer 40, receive the square-wave signal of d type flip flop 30 outputs, and calculate the number of high level pulse by the single-chip microcomputer internal counter, be divided by with the clocking value of internal timer and calculate heart rate signal, can be 30 seconds time-count cycle, minimum is 10 seconds, and the heart rate signal of output shows on LCDs 50.
Preferably, stethoscope of the present utility model is given cardiotachometer and LCDs power supply by button cell, and volume is little.Sebific duct is a pvc pipe, to strengthen audio.
The beneficial effects of the utility model are: the stethoscope volume does not increase, and only at the inner cardiotachometer that increases of membranous type can, at stainless steel casing LCDs is set, and can accurately calculate patient heart rate, and is simple and convenient.
The above only is preferred embodiment of the present utility model; not in order to restriction this utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. a stethoscope comprises membranous type can, sebific duct and ear piece, it is characterized in that, also comprises the cardiotachometer that is arranged on membranous type can inside, and the stainless steel casing at the membranous type can back side is provided with LCDs, receives the heart rate signal of cardiotachometer output;
Described cardiotachometer comprises: the sound induction module is converted to pulse signal with the audio signal of heart beating; Signal amplifier, the pulse signal that described sound induction module is exported carries out the signal amplification; D type flip flop receives the output signal of described signal amplifier, the square-wave signal of outputting standard voltage; Single-chip microcomputer receives the square-wave signal of described d type flip flop output, and calculates the number of high level pulse by enumerator, and being divided by with the clocking value of timer calculates heart rate signal.
2. stethoscope as claimed in claim 1 is characterized in that, also comprises the button cell to described cardiotachometer power supply.
3. stethoscope as claimed in claim 2 is characterized in that, described sebific duct is a pvc pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320073930 CN203089179U (en) | 2013-01-28 | 2013-01-28 | Stethoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320073930 CN203089179U (en) | 2013-01-28 | 2013-01-28 | Stethoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203089179U true CN203089179U (en) | 2013-07-31 |
Family
ID=48840633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320073930 Expired - Fee Related CN203089179U (en) | 2013-01-28 | 2013-01-28 | Stethoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203089179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103637783A (en) * | 2013-11-14 | 2014-03-19 | 成都博约创信科技有限责任公司 | Wireless control based human health detection system and method |
-
2013
- 2013-01-28 CN CN 201320073930 patent/CN203089179U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103637783A (en) * | 2013-11-14 | 2014-03-19 | 成都博约创信科技有限责任公司 | Wireless control based human health detection system and method |
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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: 20130731 Termination date: 20140128 |