CN208598409U - A kind of information acquisition sensor and physiological parameter acquisition device - Google Patents
A kind of information acquisition sensor and physiological parameter acquisition device Download PDFInfo
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- CN208598409U CN208598409U CN201721793386.1U CN201721793386U CN208598409U CN 208598409 U CN208598409 U CN 208598409U CN 201721793386 U CN201721793386 U CN 201721793386U CN 208598409 U CN208598409 U CN 208598409U
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Abstract
The utility model provides a kind of information acquisition sensor, for acquiring the physiological parameter at human finger, comprising: the first sensing module, the second sensing module and third sensing module；First sensing module is made of infrared fileter and radiation temperature transducer, for obtaining radiation temperature；Second sensing module includes two identical lenticules, near-infrared light source, two different small filters and near-infrared receiver, for obtaining blood oxygen；Third sensing module includes red light source, lenticule, Red lightscreening plate and photosensitive receiving sensor, for obtaining heart rate；The signal acquisition sensor can effectively filter out noise and the interference of stray light bring, accurately obtain the spectral signal of heart rate, blood oxygen and radiation temperature.The utility model additionally provides physiological parameter acquisition device, and the spectral signal obtained to above- mentioned information acquisition sensor is handled, and using treated, parameter value calculation obtains blood glucose concentration value.
Description
Technical field
The utility model relates to medical electronics technical fields, more particularly, to a kind of information acquisition sensor and life
Manage parameter obtaining device.
Background technique
These physiological parameters of blood oxygen saturation, heart rate, radiation temperature and blood glucose are for assessing human health status
Very important reference index.Wherein, blood oxygen saturation is reflection human body respiration function and the whether normal important life of oxygen content
Parameter is managed, there is extremely important clinical value.Heart rate is the important physiological parameter for reflecting heart working state, and blood sugar concentration is
The important indicator parameter of clinical treatment diabetes, so the detection of heart rate and blood sugar concentration is also particularly important.Meanwhile people
Body radiation temperature, that is, body temperature is also a basic Testing index on clinical treatment.
These physiological parameters are obtained, usually obtain blood oxygen saturation, the heart first with the near infrared technology in method of radiating
Three parameter values of rate and radiation temperature recycle metabolism thermal method to go out blood glucose concentration value by above three parameter value calculation.And
Measuring device currently based near infrared technology is all to carry out electronic operation using single-chip microcontroller etc., and electronic operation is more time-consuming,
Inefficiency.On the other hand, it makes an uproar during parameter acquisition cannot being effectively inhibited currently based on the measuring device of near infrared technology
The additional interferences such as the interference of acoustical signal bring and stray light, cause measurement result inaccurate.So how to solve it is above-mentioned these
Problem becomes the significant challenge faced at present.
Utility model content
The purpose of this utility model is to provide a kind of information acquisition sensor and physiological parameter acquisition device, realizations pair
The acquisition of blood oxygen saturation, heart rate, radiation temperature and blood glucose these physiological parameters, and guarantee
To achieve the above object, the utility model provides a kind of information acquisition sensor, comprising: the first sensing module,
Second sensing module and third sensing module；
First sensing module is for obtaining radiation temperature, including infrared fileter and radiation temperature transducer, finger
The infra-red radiation of sending reaches the radiation temperature transducer by the infrared fileter；
Second sensing module is for obtaining blood oxygen, including the first lenticule, the second lenticule, near-infrared light source, the
One small filter, second orifice filter and near-infrared receiver；The infrared light that the near-infrared light source issues successively passes through
After crossing first lenticule, first small filter and finger, using second lenticule and described second small
Hole filter reaches the near-infrared receiver；
The third sensing module is for obtaining heart rate, including red light source, third lenticule, Red lightscreening plate and light
Quick receiving sensor, the red light that the red light source issues is successively by the third lenticule, finger and the red filter
After mating plate, the photosensitive receiving sensor is reached；The red light source, the third lenticule, the Red lightscreening plate and
The photosensitive receiving sensor is in same optical axis.
Preferably, size of the size of the aperture of the second orifice filter than the aperture of first small filter
Greatly.
Preferably, the distance between first lenticule and first small filter are equal to first lenticule
Focal length, the distance between second lenticule and the second orifice filter be equal to second lenticule focal length,
The distance between the red light source and the third lenticule are equal to the focal length of the third lenticule.
Preferably, the focal length of first lenticule is equal to the focal length of second lenticule.
Preferably, first small filter is low-pass filter, for filtering out the red of the near-infrared light source sending
High-frequency signal in outer light；The second orifice filter is bandpass filter, for filtering out the high-frequency noise of finger introducing, only
The lightwave signal within the scope of certain frequency is allowed to pass through.
The utility model additionally provides a kind of physiological parameter acquisition device, comprising: at above- mentioned information acquisition sensor, control
Manage device and signal conditioning circuit module；The signal conditioning circuit module is arranged in the information acquisition sensor and the control
Between processor processed, the optical signal for collecting to the information acquisition sensor is filtered and modulus turns
It changes；The control processor is used to receive the physiological parameter of the signal conditioning circuit module output, and is joined using the physiology
Number, which calculates, obtains blood glucose concentration value.
Preferably, which further includes keyboard input module and display, the keyboard input module
Error correction is carried out for the treatment process to the control processor, the display is defeated for receiving the control processor
Physiological parameter and display out.
Preferably, which further includes power module, and the power module is used to join for the physiology
Number acquisition device power supply.
Preferably, the physiological parameter of the control processor output includes that radiation temperature, heart rate, blood oxygen and blood glucose are dense
Degree.
Preferably, the control processor is also used to be communicated with the power module, to the hair of the power module
Heat is monitored and controls, and prevents calorific value excessive and impacts to the collection result of above- mentioned information acquisition sensor.
The utility model compared with prior art, has the following advantages and outstanding effects:
Information acquisition sensor provided by the utility model is in the process for obtaining blood oxygen saturation, heart rate and radiation temperature
In, lenticule is introduced, it can be with focused energy, and energy needed for receiving near-infrared receiver sufficiently improves signal-to-noise ratio.Together
When introduce infrared fileter and Red lightscreening plate, can effectively filter out from extraneous bring stray light.Information collection sensing
Device also optimizes optical path, introduces small filter, realizes the inhibition of the noise outside to signal, only acquisition suits the requirements
Light energy, solve the problems, such as existing parameter acquisition devices excessively rely on electronic operation and caused by inefficiency.This reality
Blood oxygen, heart rate and the spoke obtained to above- mentioned information acquisition sensor acquisition is realized with the physiological parameter acquisition device of novel offer
It penetrates temperature to be handled to obtain glycemic parameters, to also improve the precision of blood sugar test.
Detailed description of the invention
Fig. 1 is a kind of schematic illustration of information acquisition sensor provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of physiological parameter acquisition device provided by the embodiment of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of information acquisition sensor, it includes the first sensing mould
Block, the second sensing module and third sensing module.Wherein, the second sensing module is for obtaining blood oxygen parameter, by near infrared light
Source 101, the first lenticule 102, the first small filter 103, the second lenticule 104, second orifice filter 105 and close red
Outer receiver 106 forms.Finger according to direction shown in FIG. 1 protrude into the information acquisition sensor, palm of the hand face and the back of the hand face according to
It places in the direction indicated in Fig. 1.The infrared light that near-infrared light source 101 issues successively passes through the first lenticule 102, the filter of the first aperture
After wave device 103 and finger, using the second lenticule 104 and second orifice filter 105, near-infrared receiver 106 is reached, from
And obtain the spectral signal of blood oxygen saturation.
The centre of first small filter 103 is exactly aperture, and orifice size is relatively small, and the first lenticule 102 with
The distance between first small filter 103 is equal to the focal length of the first lenticule 102.It is small among second orifice filter 105
Pore size is bigger than the orifice size of the first small filter 103, between the second lenticule 104 and second orifice filter 105
Distance is equal to the focal length of the second lenticule 104.Wherein, the focal length of the first lenticule 102 is equal to the focal length of the second lenticule 104.
First lenticule 102 and the second lenticule 104 are used for focused energy, and energy needed for receiving near-infrared receiver 106 sufficiently mentions
High s/n ratio.First small filter 103 is low-pass filter, in the infrared light for filtering out the sending of near-infrared light source 101
High-frequency signal part.Second orifice filter 105 is bandpass filter, for filtering out the high-frequency noise of finger introducing, is only allowed
Lightwave signal within the scope of certain frequency passes through.
First sensing module is used to obtain radiation temperature, is made of infrared fileter 107 and radiation temperature transducer 108,
The infra-red radiation that finger issues reaches radiation temperature transducer 108 by infrared fileter 107, to obtain the light of radiation temperature
Spectrum signal image.Since the spuious angles of light such as extraneous bring sunlight, light are larger, in this way on infrared fileter 107
Reflectivity it is also larger, effectively filter out stray light then can realize.
Third sensing module for obtaining heart rate, by red light source 109, third lenticule 110, Red lightscreening plate 111 with
And photosensitive receiving sensor 112 forms.Optical detection principle, the red light that red light source 109 issues is utilized in the sensing module
Successively after third lenticule 110, finger and Red lightscreening plate 111, photosensitive receiving sensor 112 is reached, to obtain the heart
The spectral signal image of rate.Red light source 109, third lenticule 110, Red lightscreening plate 111 and photosensitive receiving sensor 112
In same optical axis, the distance between red light source 109 and third lenticule 110 are equal to the focal length of third lenticule 110, in this way
The light that red light source 109 can be made to issue is by after third lenticule 110, being nearly parallel to optical axis injection.Wherein third
The focal length of lenticule 110 is different from the focal length of the first lenticule 102, the second lenticule 104.Red lightscreening plate 111 can be realized pair
Effective inhibition of stray light.
As shown in Fig. 2, the utility model embodiment provides a kind of physiological parameter acquisition device, including above- mentioned information acquisition
Sensor 201, signal conditioning circuit module 202, control processor 203, power module 204, display 205 and keyboard input
Module 206.Information acquisition sensor 201 get heart rate, blood oxygen, radiation temperature spectral signal after, output give signal tune
Circuit module 202 is managed, then signal conditioning circuit module 202 is both filtered the spectral signal received, makes to export
Spectral signal more meet specification；Also analog-to-digital conversion is carried out to the spectral signal after filtering processing, spectral signal is converted
For the digital quantity of physiological parameter.Then, control processor 203 receive conversion after digital physiologic parameter, using heart rate, blood oxygen,
Three parameter values of radiation temperature are calculated by metabolism thermal method and obtain blood glucose concentration value.
Control processor 203 is also communicated with power module 204, to the calorific value of power module 204 be monitored with
And control, it prevents calorific value excessive and the collection result of information acquisition sensor 201 is impacted.Power module is used to be somebody's turn to do
The power supply of physiological parameter acquisition device, keyboard input module 206 carry out error correction to the calculating process of control processor 203, i.e.,
Before carrying out blood glucose calculating to control processor, original state is set, for example if current season is spring and current time
Section is noon, corresponding key is just selected, in this way it is possible to prevente effectively from the difference of Various Seasonal blood sugar for human body is to measurement result band
The error come.Display 205 receives the physiological parameter that control processor 203 exports and display, the physiologic parameter value of display include
Radiation temperature, heart rate, blood oxygen and blood sugar concentration.
According to information acquisition sensor provided in this embodiment and physiological parameter acquisition device, available human body it is more
Item physiological parameter: radiation temperature, heart rate, blood oxygen and blood glucose.The information acquisition sensor can be realized near-infrared receiver and fill
Energy needed for tap is received improves signal-to-noise ratio.And filter is introduced, realization effectively filters out signal noise, and inhibits
Stray light bring is interfered in collection process, while improving calculated result accuracy, effectively reduces computational complexity.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not limited to this foregoing is merely specific embodiment of the utility model
Utility model, all any modification, equivalent substitution, improvement and etc. within the principle of the utility model, done should be included in this
Within the protection scope of utility model.
Claims (10)
1. a kind of information acquisition sensor characterized by comprising the first sensing module, the second sensing module and third sense
Survey module；
First sensing module is issued for obtaining radiation temperature, including infrared fileter and radiation temperature transducer, finger
Infra-red radiation reach the radiation temperature transducer by the infrared fileter；
Second sensing module is including the first lenticule, the second lenticule, near-infrared light source, first small for obtaining blood oxygen
Hole filter, second orifice filter and near-infrared receiver；The infrared light that the near-infrared light source issues successively passes through institute
After stating the first lenticule, first small filter and finger, filtered using second lenticule and the second orifice
Wave device reaches the near-infrared receiver；
The third sensing module is for obtaining heart rate, including red light source, third lenticule, Red lightscreening plate and photosensitive connects
Sensor is received, the red light that the red light source issues successively passes through the third lenticule, finger and the Red lightscreening plate
Afterwards, the photosensitive receiving sensor is reached；The red light source, the third lenticule, the Red lightscreening plate and described
Photosensitive receiving sensor is in same optical axis.
2. a kind of information acquisition sensor as described in claim 1, which is characterized in that the aperture of the second orifice filter
Size it is bigger than the size of the aperture of first small filter.
3. a kind of information acquisition sensor as described in claim 1, which is characterized in that first lenticule and described first
The distance between small filter is equal to the focal length of first lenticule, second lenticule and second orifice filtering
The distance between device is equal to the focal length of second lenticule, the distance between described red light source and the third lenticule etc.
In the focal length of the third lenticule.
4. a kind of information acquisition sensor as described in claim 1, which is characterized in that the focal length of first lenticule is equal to
The focal length of second lenticule.
5. a kind of information acquisition sensor as described in claim 1, which is characterized in that first small filter is low pass
Filter, for filtering out the high-frequency signal in the infrared light that the near-infrared light source issues；The second orifice filter is band
Bandpass filter only allows the lightwave signal within the scope of certain frequency to pass through for filtering out the high-frequency noise of finger introducing.
6. a kind of physiological parameter acquisition device characterized by comprising information collection described in any one of claim 1 to 5 passes
Sensor, control processor and signal conditioning circuit module；The signal conditioning circuit module setting is passed in the information collection
Between sensor and the control processor, the optical signal for collecting to the information acquisition sensor is filtered
And analog-to-digital conversion；The control processor is used to receive the physiological parameter of the signal conditioning circuit module output, and utilizes
The physiological parameter, which calculates, obtains blood glucose concentration value.
7. a kind of physiological parameter acquisition device as claimed in claim 6, which is characterized in that further include keyboard input module and aobvious
Show device, the keyboard input module is used to carry out error correction to the treatment process of the control processor, and the display is used
In the physiological parameter and display that receive the control processor output.
8. a kind of physiological parameter acquisition device as claimed in claim 6, which is characterized in that it further include power module, the electricity
Source module is used to power for the physiological parameter acquisition device.
9. a kind of physiological parameter acquisition device as claimed in claim 7, which is characterized in that the life of the control processor output
Managing parameter includes radiation temperature, heart rate, blood oxygen and blood sugar concentration.
10. a kind of physiological parameter acquisition device as claimed in claim 8, which is characterized in that the control processor is also used to
It is communicated with the power module, the calorific value of the power module is monitored and is controlled, prevents calorific value excessive
And the collection result of the information acquisition sensor is impacted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721793386.1U CN208598409U (en) | 2017-12-20 | 2017-12-20 | A kind of information acquisition sensor and physiological parameter acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721793386.1U CN208598409U (en) | 2017-12-20 | 2017-12-20 | A kind of information acquisition sensor and physiological parameter acquisition device |
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| Publication Number | Publication Date |
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| CN208598409U true CN208598409U (en) | 2019-03-15 |
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| CN201721793386.1U Active CN208598409U (en) | 2017-12-20 | 2017-12-20 | A kind of information acquisition sensor and physiological parameter acquisition device |
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Effective date of registration: 20200730 Address after: No.102, building X11, phase II, Hefei medical and Health Industrial Park, west of Susong Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Hefei mingyuanhong Medical Technology Co., Ltd Address before: No. 1158, No. 2 Avenue, Xiasha High Education Park, Jianggan District, Hangzhou, Zhejiang Patentee before: HANGZHOU DIANZI University |