CN201912089U - Finger griping type pulse oximeter with automatic multidirectional display interface switching function - Google Patents
Finger griping type pulse oximeter with automatic multidirectional display interface switching function Download PDFInfo
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- CN201912089U CN201912089U CN2011200289846U CN201120028984U CN201912089U CN 201912089 U CN201912089 U CN 201912089U CN 2011200289846 U CN2011200289846 U CN 2011200289846U CN 201120028984 U CN201120028984 U CN 201120028984U CN 201912089 U CN201912089 U CN 201912089U
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Abstract
The utility model discloses a finger griping type pulse oximeter with an automatic multidirectional display interface switching function, which consists of a singlechip, a red light/infrared transmission circuit, a photosensor, a signal processing circuit, an optical direction senor, a key, a buzzer and a display screen, wherein the signal processing circuit consists of a boosting and amplifying circuit, a filter circuit and an analog/digital (A/D) switching circuit. Compared with the existing product, the finger griping type pulse oximeter with the automatic multidirectional display interface switching function has relatively simple components under the condition of realizing the same function, all the components are homemade, accordingly, the purchase cost is greatly reduced; and the optical direction senor is used, so the risk of polluting the environment does not exist, and the use safety is ensured.
Description
Technical field
This utility model relates to a kind of finger-clipped pulse blood oxygen instrument with the automatic multi-direction handoff functionality of display interface, belongs to medical instruments field.
Background technology
The finger-clipped pulse blood oxygen instrument is to measure in the blood by the bonded HbO2 Oxyhemoglobin (HbO of oxygen
2) capacity account for the percentage ratio of whole combinative hemoglobin (Hb) capacity, promptly the concentration of blood oxygen in the blood is the important physiological parameter of respiratory circulatory system.The disease of many respiratory systems can cause the minimizing of blood oxygen saturation in the blood of human body, damage that the automatic regulatory function of body that is caused by anesthesia is not normal in addition, major operation wound and some medical examination cause etc., all may cause patient's oxygen supply generation problem and reduced the blood oxygen saturation of human body, cause patient symptoms such as dizziness, unable, vomiting to occur, weight person is entail dangers to life then.Therefore the blood oxygen saturation situation of in time understanding patient helps the doctor in time to pinpoint the problems, and crucial meaning is arranged in the clinical treatment field.In addition, finger-clipped pulse blood oxygen instrument volume is little, and is low in energy consumption, easy to use, is easy to carry, and inserts in the finger cot type photoelectric sensor as long as will point during measurement, and display screen will directly show the oximetry value of surveying.Clinical experiment shows to have higher accuracy and repeatability.The finger-clipped pulse blood oxygen instrument has environmental protection, safety, convenience, characteristics such as accurate.
Retrieval is found, China's utility model patent 200820146979.3 " but fingernail blood oxygen instrument of self adaptation rotation picture " discloses and has a kind ofly changeed frequency bin, gravity switch, power management, dual wavelength optical transmitting set, single-chip microcomputer main control MCU, button, monitor signal display lamp, buzzer, OLED chromatic liquid crystal screen by light and form, and wherein gravity switch is mercoid switch or conducting liquid electrolyte switch.This scheme is to start power circuit by central processing unit, change frequency circuit for two-way signal driving amplifying circuit and light power supply is provided, send red light by driving amplifying circuit driving dual wavelength emitter, changeing frequency bin through light receives, and the gained signal is changed into frequency send into central processing unit, central processing unit is calculated measurement result according to frequency, the induced signal passed back according to gravity switch and pattern commutation circuit of central processing unit simultaneously, select to change surface model accordingly, show by display screen.
But there is the device cost costliness in actual use in above-mentioned prior art, has potential mercury pollution and conducting liquid electrolyte to reveal pollution problems.Reason be its dual wavelength transmitting tube and light to change frequency device be that indivedual offshore companies produce, the domestic product that can not be substituted costs an arm and a leg, therefore utilize these device production the finger-clipped pulse blood oxygen instrument because the cost height makes common user be difficult to bear.In addition, its hydrargyrum or conducting liquid electrolyte gravity switch all exist reveals the after stain environment, the risk of harm user health.Above-mentioned prior art has obviously increased the user purchase cost and has used insecurity, and has increased the risk of environmental pollution, therefore exists bigger limitation in actual use.
The utility model content
The technical problem that this utility model solves is, eliminates in the prior art owing to use hydrargyrum or electrolyte to cause the problem of leakage easily, and owing to uses the external device of producing of part to cause later maintenance, changes the problem of difficulty of accessory.
For solving the problems of the technologies described above, this utility model adopts following technical scheme:
Described finger-clipped pulse blood oxygen instrument is made up of single-chip microcomputer, red optical transmission circuit, light sensor, signal processing circuit, optical direction pick off, button, buzzer and display screen; Described signal processing circuit is by boosting and amplifying circuit, filter circuit and A/D change-over circuit are formed.
Connect described single-chip microcomputer by described button, the described red optical transmission circuit of this Single-chip Controlling sends HONGGUANG, infrared light, through the human body terminal organ, received by described light sensor, this light sensor with the signal that receives by the amplification of boosting of described signal processing circuit, then this signal is passed to described filter circuit and carried out the signal purification, the A/D change-over circuit that this signal after will purifying again carries through described A/D change-over circuit or this single-chip microcomputer inside carries out analog digital conversion, send this signal to this single-chip microcomputer at last and carry out calculation process, on described display screen, show measured signal, this single-chip microcomputer is also controlled described buzzer warning, and on this display screen, show relevant information, the optical direction pick off passes through to the single-chip microcomputer signal, the display interface of automatic multi-direction switching display screen.
Described optical direction pick off is made up of photosensitive reception audion 1, light emitting diode 2, cylindrical shade 3 and light reflecting surface 4; By the difference of described cylindrical shade 3 shading of living in positions, detect this optical direction pick off present located state to block described light emitting diode 2 and described photosensitive reception audion 3.
The beneficial effects of the utility model are: the composition device of described finger-clipped pulse blood oxygen instrument is homemade, thereby reduces purchase cost greatly, and later maintenance simultaneously, to change accessory more convenient; And,, ensured the safety of using so also there is not the risk of environmental pollution because use is the optical direction pick off.
Description of drawings
Fig. 1 is the total system schematic diagram.
Fig. 2 is signal processing circuitry figure.
Fig. 3 is the generalized section and the theory structure sketch map of optical direction pick off.
Fig. 4 is optical direction sensor circuit figure.
Fig. 5 is the working state schematic representation of optical direction pick off.
The specific embodiment
Below in conjunction with the drawings and specific embodiments this utility model is specified.
The finger-clipped pulse blood oxygen instrument is made up of single-chip microcomputer, red optical transmission circuit, light sensor, signal processing circuit, optical direction pick off, button, buzzer and display screen as described in Figure 1; Described signal processing circuit is by boosting and amplifying circuit, filter circuit and A/D change-over circuit are formed.As shown in Figure 2, button is connected single-chip microcomputer, Single-chip Controlling red optical transmission circuit sends HONGGUANG, infrared light, through the human body terminal organ (as the finger, toe, ear-lobe etc.) received by light sensor, light sensor with the signal that receives by boosting and the amplifying circuit amplification of boosting in the signal processing circuit, then signal is passed to filter circuit and carried out the signal purification, the A/D change-over circuit that signal after will purifying again carries through A/D change-over circuit or single-chip microcomputer inside carries out analog digital conversion, at last signal is sent to single-chip microcomputer and carry out calculation process, on display screen, show measured signal, single-chip microcomputer is also controlled buzzer warning, and shows relevant information on display screen.In addition, the optical direction pick off passes through to the single-chip microcomputer signal, the display interface of automatic multi-direction switching display screen.
The optical signal that optical direction pick off is as shown in Figure 3 launched by light emitting diode 2 is received by phototriode 1 through the light reflecting surface, realizes blocking Light-Emitting Diode 2 and photosensitive reception audion 1 comes detection optical direction sensor present located state by cylindrical shade 3.
As shown in Figure 4 and Figure 5, when the optical direction pick off was in state A, light emitting diode 2 was blocked by cylindrical shade 3, two photosensitive reception audions 1 all do not receive optical signal, be in off state, corresponding output low level, then two equal output low levels of GPIO mouth; When the optical direction pick off is in state B, one of them photosensitive receiving tube 1 is blocked by cylindrical shade 3, the optical signal that light emitting diode 2 sends is received by photosensitive receiving tube 1, this phototriode 1 conducting, and another phototriode 1 turn-offs, like this, two one of them output high level of GPIO mouth, another one output low level; When the optical direction pick off was in state C, cylindrical shade 3 did not shelter from any optical signal, and light emitting diode 2 sends optical signal, and two phototriodes 1 all can receive optical signal, like this can both conducting, two GPIO mouth outputs be high level; When the optical direction pick off was in state D, this state was just in time opposite with the residing position of state B, and the high-low level of two GPIO mouth outputs exchanges.
Though this utility model with preferred embodiment openly as above; but embodiment and accompanying drawing be not be used for limiting of the present utility model; anyly be familiar with this skill person; in the spirit and scope that do not break away from this utility model; can do various variations or retouching from working as, but equally within protection domain of the present utility model.What therefore protection domain of the present utility model should be defined with the application's claim protection domain is as the criterion.
Claims (3)
1. finger-clipped pulse blood oxygen instrument with the automatic multi-direction handoff functionality of display interface, it is characterized in that: described finger-clipped pulse blood oxygen instrument is made up of single-chip microcomputer, red optical transmission circuit, light sensor, signal processing circuit, optical direction pick off, button, buzzer and display screen; Described button is connected described single-chip microcomputer, the described red optical transmission circuit of this Single-chip Controlling sends HONGGUANG, infrared light, through the human body terminal organ, received by described light sensor, send this signal to this single-chip microcomputer again this light sensor is handled the signal that receives by described signal processing circuit after and carry out calculation process, on described display screen, show measured signal, this single-chip microcomputer is also controlled described buzzer warning, and on this display screen, show relevant information, this optical direction sensor passes signal is given this single-chip microcomputer, the display interface of automatic multi-direction this display screen of switching.
2. finger-clipped pulse blood oxygen instrument according to claim 1, it is characterized in that: described signal processing circuit is by boosting and amplifying circuit, filter circuit and A/D change-over circuit are formed, described signal through described boost and amplifying circuit boost and amplify after pass to described filter circuit and filter, the A/D change-over circuit that this signal after will filtering again carries through described A/D change-over circuit or this single-chip microcomputer inside carries out analog digital conversion.
3. finger-clipped pulse blood oxygen instrument according to claim 1 is characterized in that: described optical direction pick off is made up of photosensitive reception audion (1), light emitting diode (2), cylindrical shade (3) and light reflecting surface (4); According to the difference of described cylindrical shade (3) shading of living in position, detect this optical direction pick off present located state to block described light emitting diode (2) and described photosensitive reception audion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200289846U CN201912089U (en) | 2011-01-28 | 2011-01-28 | Finger griping type pulse oximeter with automatic multidirectional display interface switching function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200289846U CN201912089U (en) | 2011-01-28 | 2011-01-28 | Finger griping type pulse oximeter with automatic multidirectional display interface switching function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201912089U true CN201912089U (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200289846U Expired - Lifetime CN201912089U (en) | 2011-01-28 | 2011-01-28 | Finger griping type pulse oximeter with automatic multidirectional display interface switching function |
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| CN (1) | CN201912089U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102429646A (en) * | 2011-08-17 | 2012-05-02 | 天津大学 | Device and method for measuring orthogonal sine wave photoelectric volume pulse wave |
| CN103747723A (en) * | 2011-08-19 | 2014-04-23 | 株式会社村田制作所 | Living organism sensor |
| CN104905798A (en) * | 2014-03-13 | 2015-09-16 | 天津康沃益科技有限公司 | Noninvasive human body blood oxygen detection device and detection method |
-
2011
- 2011-01-28 CN CN2011200289846U patent/CN201912089U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102429646A (en) * | 2011-08-17 | 2012-05-02 | 天津大学 | Device and method for measuring orthogonal sine wave photoelectric volume pulse wave |
| CN103747723A (en) * | 2011-08-19 | 2014-04-23 | 株式会社村田制作所 | Living organism sensor |
| CN103747723B (en) * | 2011-08-19 | 2015-11-25 | 株式会社村田制作所 | Biosensor |
| US9592000B2 (en) | 2011-08-19 | 2017-03-14 | Murata Manufacturing Co., Ltd. | Biosensor |
| US10314526B2 (en) | 2011-08-19 | 2019-06-11 | Murata Manufacturing Co., Ltd. | Biosensor |
| CN104905798A (en) * | 2014-03-13 | 2015-09-16 | 天津康沃益科技有限公司 | Noninvasive human body blood oxygen detection device and detection method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
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| CX01 | Expiry of patent term |