CN209091393U - A kind of low-power consumption blood oxygen saturation detection device - Google Patents
A kind of low-power consumption blood oxygen saturation detection device Download PDFInfo
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- CN209091393U CN209091393U CN201821545412.3U CN201821545412U CN209091393U CN 209091393 U CN209091393 U CN 209091393U CN 201821545412 U CN201821545412 U CN 201821545412U CN 209091393 U CN209091393 U CN 209091393U
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- blood oxygen
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- power consumption
- detection device
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 85
- 239000001301 oxygen Substances 0.000 title claims abstract description 85
- 239000008280 blood Substances 0.000 title claims abstract description 84
- 210000004369 blood Anatomy 0.000 title claims abstract description 84
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 32
- 239000003990 capacitor Substances 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims 1
- -1 protection circuit Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005662 electromechanics Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a kind of low-power consumption blood oxygen saturation detection devices; it include: sequentially connected blood oxygen probe, protection circuit, blood oxygen circuit and governor circuit; wherein the protection circuit includes double diode D25, double diode D26, capacitor C68, capacitor C69; the cathode of the double diode D26 and the cathode of blood oxygen probe connect, and the cathode of the double diode D25 and the anode of blood oxygen probe connect；The anode of the capacitor C68 and the one end the capacitor C69 and blood oxygen probe connects, other end ground connection；The blood oxygen circuit includes blood oxygen chip U12, and the governor circuit includes main control chip U3；The anode of blood oxygen probe is connect after passing through resistance R136 with the blood oxygen chip U12, and by connecting after resistance R135 with the blood oxygen chip U12, the blood oxygen chip U12 is connect the cathode of blood oxygen probe with the main control chip U3.
Description
Technical field
The utility model relates to patient monitor technical fields, particularly relate to a kind of low-power consumption blood oxygen saturation detection dress
It sets.
Background technique
Human body oxygen saturation signal detection circuit is using more in patient monitor, and TI is also proposed Integrated Solution, still
It is generally used for less considering power problems on desktop computer.It is usually all quiet as preventing using TVS pipe on front-end protection circuit
Electric protection measure, but common TVS pipe or switching diode leakage current is relatively high, generally uA grades.Meanwhile it being driven in probe
On flowing mode, because not carrying out good luminous frequency control, cause light emitting diode power consumption excessively high.Used in hand-held type miniature
Blood oxygen saturation detects on patient monitor, and low-power consumption, which just seems, to be even more important.
Therefore, the utility model proposes a kind of new solutions to improve the above problem.
Utility model content
The utility model is intended to provide a kind of low-power consumption blood oxygen saturation detection device.
In order to solve the above technical problems, the technical solution of the utility model is:
A kind of low-power consumption blood oxygen saturation detection device, comprising: sequentially connected blood oxygen probe, protection circuit, blood oxygen electricity
Road and governor circuit, wherein the protection circuit includes double diode D25, double diode D26, capacitor C68, capacitor C69, it is described
The cathode of double diode D26 and the cathode of blood oxygen probe connect, and the cathode of the double diode D25 and the anode of blood oxygen probe connect
It connects；The anode of the capacitor C68 and the one end the capacitor C69 and blood oxygen probe connects, other end ground connection；The blood oxygen circuit packet
Blood oxygen chip U12 is included, the governor circuit includes main control chip U3；The anode of blood oxygen probe pass through resistance R136 after with the blood
The U12 connection of oxygen chip, the cathode of blood oxygen probe after resistance R135 with the blood oxygen chip U12 by connecting, the blood oxygen chip
U12 is connect with the main control chip U3.
It preferably, further include display screen and key, the display screen and the key are connect with the governor circuit.
Preferably, the blood oxygen chip U12 is AFE4404YZPT blood oxygen chip.
Preferably, the main control chip U3 is that MKM34Z256VLL7 controls chip.
Preferably, the display screen is OLED display screen.
Preferably, the blood oxygen probe is transmission-type blood oxygen probe.
Preferably, the double diode D25, the double diode D26 are low-leakage current double diode BAV199.
By adopting the above technical scheme, the utility model include at least it is following the utility model has the advantages that
Low-power consumption blood oxygen saturation detection device described in the utility model, can be effectively reduced current loss, especially suitable
Patient monitor is detected for hand-held type miniature blood oxygen saturation.
Detailed description of the invention
Fig. 1 is the circuit diagram of low-power consumption blood oxygen saturation detection device described in the utility model；
Fig. 2 is the partial circuit diagram of low-power consumption blood oxygen saturation detection device described in the utility model；
Fig. 3 is the circuit diagram of governor circuit described in the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1 to Figure 3, a kind of low-power consumption blood oxygen saturation detection device to meet the utility model, comprising: according to
The blood oxygen probe of secondary connection, protection circuit, blood oxygen circuit and governor circuit, wherein the protection circuit include double diode D25,
The cathode connection of double diode D26, capacitor C68, the cathode of capacitor C69, the double diode D26 and blood oxygen probe, it is described double
The cathode of diode D25 and the anode of blood oxygen probe connect；The capacitor C68 and the one end the capacitor C69 and blood oxygen probe
Anode connection, other end ground connection；The blood oxygen circuit includes blood oxygen chip U12, and the governor circuit includes main control chip U3；Blood
The anode of oxygen probe is connect after passing through resistance R136 with the blood oxygen chip U12, and the cathode of blood oxygen probe passes through after resistance R135
It is connect with the blood oxygen chip U12, the blood oxygen chip U12 is connect with the main control chip U3.
It preferably, further include display screen and key, the display screen and the key are connect with the governor circuit.
Preferably, the blood oxygen chip U12 is AFE4404YZPT blood oxygen chip.
Preferably, the main control chip U3 is that MKM34Z256VLL7 controls chip.
Preferably, the display screen is OLED display screen.
Preferably, the blood oxygen probe is transmission-type blood oxygen probe.
Preferably, the double diode D25, double diode D26 are low-leakage current double diode BAV199.Preferably
The BAV199 of PHILIPS, leakage current are 3pA, are low-leakage current double diode (Low-leakage double diode).
Preferably, the blood oxygen circuit further includes a 1631-04000-BKKQYA terminal.
Certainly, the present embodiment further includes a power module, which can be supplying cell, or external electricity
Source, due to the common knowledge that it is this field, therefore the present embodiment does not repeat them here this, those skilled in the art should know.
The present embodiment principle is as follows:
The blood oxygen probe of 1 transmission-type penetrates the spectral characteristic detection blood oxygen saturation of tissue by detecting.
It is to play anti-static function that 2 protection circuits, which are keys,.Because blood oxygen probe line is long, and and human contact, meeting
A large amount of electrostatic are received, protection is not done and is easy to damage chip.But the method for generalling use TVS pipe in the prior art waits for electromechanics
Flow bigger, and we are using the method for clamp diode that (diode is made of two diode reverse parallel connections, once can only
There is a diode current flow, and another is in off state, then its forward and reverse pressure drop will be clamped at diode just
To conduction voltage drop 0.5-0.7 hereinafter, to play the purpose of protection circuit), leakage current can be substantially reduced, to reduce function
Consumption improves battery.
That 3 blood oxygen chips are selected is AFE4404YZPT, and circuit is simple, and low in energy consumption, performance is leading, to further decrease
Power consumption.
4 display screens are OLED display screens, have optimal power saving performance.
5 main control chips are that MKM34Z256VLL7 controls chip, low-power consumption family chip.
I.e. current loss can be effectively reduced in the utility model, and the electricity of battery is used effectively in patient care,
Extend battery, while reducing manufacturing cost.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. a kind of low-power consumption blood oxygen saturation detection device characterized by comprising sequentially connected blood oxygen probe, protection electricity
Road, blood oxygen circuit and governor circuit, wherein the protection circuit includes double diode D25, double diode D26, capacitor C68, electricity
Hold C69, the cathode of the double diode D26 and the cathode of blood oxygen probe connect, and the cathode and blood oxygen of the double diode D25 is visited
The anode connection of head；The anode of the capacitor C68 and the one end the capacitor C69 and blood oxygen probe connects, other end ground connection；It is described
Blood oxygen circuit includes blood oxygen chip U12, and the governor circuit includes main control chip U3；The anode of blood oxygen probe passes through resistance R136
It is connect afterwards with the blood oxygen chip U12, the cathode of blood oxygen probe after resistance R135 with the blood oxygen chip U12 by connecting, institute
Blood oxygen chip U12 is stated to connect with the main control chip U3.
2. low-power consumption blood oxygen saturation detection device as described in claim 1, it is characterised in that: further include display screen and by
Key, the display screen and the key are connect with the governor circuit.
3. low-power consumption blood oxygen saturation detection device as described in claim 1, it is characterised in that: the blood oxygen chip U12 is
AFE4404YZPT blood oxygen chip.
4. low-power consumption blood oxygen saturation detection device as described in claim 1, it is characterised in that: the main control chip U3 is
MKM34Z256VLL7 controls chip.
5. low-power consumption blood oxygen saturation detection device as claimed in claim 2, it is characterised in that: the display screen is aobvious for OLED
Display screen.
6. low-power consumption blood oxygen saturation detection device as described in claim 1, it is characterised in that: the blood oxygen probe is transmission
Formula blood oxygen probe.
7. low-power consumption blood oxygen saturation detection device as described in claim 1, it is characterised in that: the double diode D25, institute
Stating double diode D26 is low-leakage current double diode BAV199.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821545412.3U CN209091393U (en) | 2018-09-21 | 2018-09-21 | A kind of low-power consumption blood oxygen saturation detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821545412.3U CN209091393U (en) | 2018-09-21 | 2018-09-21 | A kind of low-power consumption blood oxygen saturation detection device |
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| Publication Number | Publication Date |
|---|---|
| CN209091393U true CN209091393U (en) | 2019-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821545412.3U Active CN209091393U (en) | 2018-09-21 | 2018-09-21 | A kind of low-power consumption blood oxygen saturation detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110558935A (en) * | 2019-08-05 | 2019-12-13 | 南京阿尔法医学有限公司 | Front-end protection circuit and method of medical local anesthesia plane monitor |
-
2018
- 2018-09-21 CN CN201821545412.3U patent/CN209091393U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110558935A (en) * | 2019-08-05 | 2019-12-13 | 南京阿尔法医学有限公司 | Front-end protection circuit and method of medical local anesthesia plane monitor |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240108 Address after: 518000 12th floor, building 1, Baiwang R & D building, 5158 xilishahe West Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen maiketian Biomedical Technology Co.,Ltd. Address before: 215000 North First Floor, Building 19, No. 8 Jinfeng Road, High tech Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU BEILAIFU MEDICAL TECHNOLOGY CO.,LTD. |