CN203710025U - Blood oxygen saturation degree detecting device - Google Patents
Blood oxygen saturation degree detecting device Download PDFInfo
- Publication number
- CN203710025U CN203710025U CN201420006776.XU CN201420006776U CN203710025U CN 203710025 U CN203710025 U CN 203710025U CN 201420006776 U CN201420006776 U CN 201420006776U CN 203710025 U CN203710025 U CN 203710025U
- Authority
- CN
- China
- Prior art keywords
- light
- oxygen saturation
- blood oxygen
- pass filter
- infrared
- 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
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 32
- 239000001301 oxygen Substances 0.000 title claims abstract description 32
- 239000008280 blood Substances 0.000 title claims abstract description 31
- 210000004369 blood Anatomy 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000004907 flux Effects 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 102000001554 Hemoglobins Human genes 0.000 description 2
- 108010054147 Hemoglobins Proteins 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002496 oximetry Methods 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 blood oxygen saturation degree detecting device. The blood oxygen saturation degree detecting device comprises a first light source for emitting red wavelength light, a second light source for emitting infrared wavelength light, a red light band pass filter and an infrared band pass filter; the red light band pass filter is mounted in a light path of the light emitted from the first light source, and the infrared band pass filter is located in a light path of the light emitted from the second light source; the central wavelength of the red light is 660 nanometers after passing through the red light band pass filter; the central wavelength of the infrared is 940 nanometers after passing through the infrared band pass filter. By means of said technical scheme, the blood oxygen saturation degree detecting device is capable of controlling the shift of such parameters as LED light source peak wavelength, radiation flux and color temperature and enables the measuring precision and anti-interference function to be improved.
Description
Technical field
This utility model relates to Medical Equipment field, relates in particular to a kind of blood oxygen saturation checkout gear.
Background technology
At present, the measuring method of blood oxygen saturation is to adopt finger cot type photoelectric sensor, when measurement, only need be by sensor sleeve on finger, utilize the transparent vessel of finger as splendid attire hemoglobin, use the HONGGUANG of centre wavelength 660nm and the near infrared light of 940nm as injecting light source, measure by the Spectrum attenuation of tissue, calculate hemoglobin concentration and blood oxygen saturation, instrument can show human body blood oxygen saturation, provides a kind of continuous not damaged Oximetry instrument for clinical.
As the general selection of incident light source, the LED spectral region that LED light source sends is wide, and LED is not monochromatic coherent source, causes oxygen saturation measurement value accurate not, and drift is large, concordance is poor.For the measurement of blood oxygen saturation, the narrower concordance of measure spectrum is better, precision is higher.Therefore, need a kind of blood oxygen saturation checkout gear that limits LED spectrum, suppress the parameter drifts such as peak wavelength, radiant flux, colour temperature, to improve certainty of measurement and anti-interference function.
Utility model content
The purpose of this utility model is to provide a kind of blood oxygen saturation checkout gear, can improve and adopt the precision of wide spectrum LED as the measured value of the measurement blood oxygen saturation of luminous source.
The utility model discloses a kind of blood oxygen saturation checkout gear, comprise the first light source of transmitting red wavelength light and the secondary light source of transmitting infrared wavelength light, described blood oxygen saturation checkout gear also comprises red band pass filter and infrared band pass filter; Described red band pass filter is located in the light path of the light that described the first light source sends; Described infrared band pass filter is arranged in the light path of described secondary light source to the light sending; Be 660nm by the centre wavelength of the HONGGUANG after described red band pass filter; Be 940nm by the infrared centre wavelength after described infrared band pass filter.
The first light path of the light that preferably, described the first light source sends and the second light path of the light that described secondary light source sends are 90 °.
Preferably, described the first light path and described the second light path intersect at a joining.
Preferably, described blood oxygen saturation checkout gear also comprises an optics, and described optics is located at described joining.
Preferably, between described optics and described the first light path and described the second light path, angle is 45 °.
Preferably, the red wavelength light after described optics overlaps with the infrared wavelength light path after described optics.
Preferably, described optics lens, for reflect red transmitted infrared light.
Preferably, described the first light path is injected the transmission plane of described optics; Described the second light path is injected the reflecting surface of described optics.
Adopt after technique scheme, this blood oxygen saturation checkout gear can suppress the temperature drift of spectrum peak, improves concordance and the degree of accuracy of spectral response, can reduce characteristic absorption spectrum aliasing probability.
Brief description of the drawings
Fig. 1 is the blood oxygen saturation structure of the detecting device schematic diagram of this utility model one preferred embodiment.
Detailed description of the invention
Further set forth advantage of the present utility model below in conjunction with accompanying drawing and specific embodiment.
Consulting Fig. 1, is the blood oxygen saturation structure of the detecting device schematic diagram of this utility model one preferred embodiment.In this preferred embodiment, blood oxygen saturation checkout gear comprises two independently luminous sources,---secondary light source of red-light LED and the transmitting infrared wavelength light---infrared LED that is respectively the first light source of transmitting red wavelength light, the spectral region of the light sending due to red-light LED and infrared LED is wider, therefore, in the light path of the light sending of red-light LED, a red band pass filter is set, one infrared band pass filter is set in the light path of the light sending at infrared LED, and to be configured to the light wavelength that HONGGUANG that the first light source sends leaches after HONGGUANG filter plate be 660nm, more specifically, its centre wavelength is 660nm.Similarly, the light wavelength that the infrared light that secondary light source sends leaches after infrared filter is 940nm, and more specifically, its centre wavelength is 940nm.Thus, utilize in the wide band HONGGUANG that two bandpass filters send LED light source centre wavelength to leach for the light that in 660nm light and infrared light, centre wavelength is 940nm, both avoided due to the wide temperature drift causing of LED spectral region, ensure that the detection centre wavelength of HONGGUANG is 660nm, the centre wavelength of infrared light is 940nm simultaneously.
Further, the light that the first light path and the second light path are sent intersects at a joining, at joining place, is provided with an optics, for the HONGGUANG and the infrared light that converge in joining are done to transmission or reflection processing.In the preferred embodiment, the angle of optics and the first light path and the second light path is 45 °.Because the initial angle of the first light path and the second light path is 90 °, through being respectively after the optics reflection or transmission of 45 °, HONGGUANG and infrared light will gather for light beam overlaps, directive detection people's finger.What in this preferred embodiment, adopt is lens, wherein injects the transmission plane of these lens in the HONGGUANG of the first light path, and HONGGUANG is injected after optics, penetrates by original optical path; Inject the reflecting surface of these lens in the infrared light of the second light path, infrared light is injected after optics, and by being the light path ejaculation of 90 ° with original optical path, and the HONGGUANG and the infrared light that penetrate through optics are overlapping.Thus, two independent HONGGUANG and infrared light light source be superimposed after optics, and red light wavelength is 660nm, and spectral region is narrow, and infrared light wavelength is 940nm, and spectral region is narrow equally, has improved on the basis of existing technology certainty of measurement.
Above in arbitrary preferred embodiment, can intercourse as the red-light LED of the first light source and as the setting position of the infrared LED of secondary light source, the first light source can be arranged at one of position of the first light source in above-described embodiment or secondary light source, and secondary light source is also like this.
Adopt after technique scheme, this blood oxygen saturation checkout gear can suppress the temperature drift of spectrum peak, improves concordance and the degree of accuracy of spectral response, and can prevent absorption spectrum aliasing.
Should be noted that, embodiment of the present utility model has preferably implementation, and not this utility model is done to any type of restriction, any person skilled in art of being familiar with may utilize the technology contents of above-mentioned announcement to change or be modified to the effective embodiment being equal to, in every case do not depart from the content of technical solutions of the utility model, any amendment or equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.
Claims (8)
1. a blood oxygen saturation checkout gear, comprises the first light source of transmitting red wavelength light and the secondary light source of transmitting infrared wavelength light, it is characterized in that:
Described blood oxygen saturation checkout gear also comprises red band pass filter and infrared band pass filter;
Described red band pass filter is located in the light path of the light that described the first light source sends;
Described infrared band pass filter is arranged in the light path of the light that described secondary light source sends;
Be 660nm by the centre wavelength of the HONGGUANG after described red band pass filter; Be 940nm by the infrared centre wavelength after described infrared band pass filter.
2. blood oxygen saturation checkout gear as claimed in claim 1, is characterized in that:
The second light path of the light that the first light path of the light that described the first light source sends and described secondary light source send is 90 °.
3. blood oxygen saturation checkout gear as claimed in claim 2, is characterized in that:
Described the first light path and described the second light path intersect at a joining.
4. blood oxygen saturation checkout gear as claimed in claim 3, is characterized in that:
Described blood oxygen saturation checkout gear also comprises an optics, and described optics is located at described joining.
5. blood oxygen saturation checkout gear as claimed in claim 4, is characterized in that:
Between described optics and described the first light path and described the second light path, angle is 45 °.
6. blood oxygen saturation checkout gear as claimed in claim 5, is characterized in that:
Red wavelength light after described optics overlaps with the infrared wavelength light path after described optics.
7. the blood oxygen saturation checkout gear as described in claim 4 to 6 any one, is characterized in that:
Described optics is lens, for reflect red transmitted infrared light.
8. blood oxygen saturation checkout gear as claimed in claim 7, is characterized in that:
Described the first light path is injected the transmission plane of described optics;
Described the second light path is injected the reflecting surface of described optics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006776.XU CN203710025U (en) | 2014-01-06 | 2014-01-06 | Blood oxygen saturation degree detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006776.XU CN203710025U (en) | 2014-01-06 | 2014-01-06 | Blood oxygen saturation degree detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203710025U true CN203710025U (en) | 2014-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420006776.XU Expired - Fee Related CN203710025U (en) | 2014-01-06 | 2014-01-06 | Blood oxygen saturation degree detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203710025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757979A (en) * | 2014-01-06 | 2015-07-08 | 上海德尔格医疗器械有限公司 | Oxyhemoglobin saturation detection device |
-
2014
- 2014-01-06 CN CN201420006776.XU patent/CN203710025U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757979A (en) * | 2014-01-06 | 2015-07-08 | 上海德尔格医疗器械有限公司 | Oxyhemoglobin saturation detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 |