CN106344041A - Oximeter and blood oxygen monitoring method - Google Patents
Oximeter and blood oxygen monitoring method Download PDFInfo
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- CN106344041A CN106344041A CN201610957963.XA CN201610957963A CN106344041A CN 106344041 A CN106344041 A CN 106344041A CN 201610957963 A CN201610957963 A CN 201610957963A CN 106344041 A CN106344041 A CN 106344041A
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- 239000001301 oxygen Substances 0.000 title claims abstract description 53
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 210000004369 blood Anatomy 0.000 title claims abstract description 41
- 239000008280 blood Substances 0.000 title claims abstract description 41
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 102000010445 Lactoferrin Human genes 0.000 description 1
- 108010063045 Lactoferrin Proteins 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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- CSSYQJWUGATIHM-IKGCZBKSSA-N l-phenylalanyl-l-lysyl-l-cysteinyl-l-arginyl-l-arginyl-l-tryptophyl-l-glutaminyl-l-tryptophyl-l-arginyl-l-methionyl-l-lysyl-l-lysyl-l-leucylglycyl-l-alanyl-l-prolyl-l-seryl-l-isoleucyl-l-threonyl-l-cysteinyl-l-valyl-l-arginyl-l-arginyl-l-alanyl-l-phenylal Chemical compound C([C@H](N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CS)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(=O)NCC(=O)N[C@@H](C)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CS)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](C)C(=O)N[C@@H](CC=1C=CC=CC=1)C(O)=O)C1=CC=CC=C1 CSSYQJWUGATIHM-IKGCZBKSSA-N 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
- A61B5/02427—Details of sensor
- A61B5/02433—Details of sensor for infrared radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02438—Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
- A61B5/14552—Details of sensors specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6825—Hand
- A61B5/6826—Finger
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
Landscapes
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- Physics & Mathematics (AREA)
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- Signal Processing (AREA)
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- Spectroscopy & Molecular Physics (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Psychiatry (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention provides an oximeter and a blood oxygen monitoring method. The oximeter comprises a card type shell, wherein a light-transmitting window is arranged on one side of the shell; a cavity for containing a measurement assembly is formed in the shell; the measurement assembly comprises a circuit board, a power supply module and a photoelectric sensor which are arranged in the cavity; the photoelectric sensor is arranged on the inner side of the light-transmitting window and is connected to a side wall, which is used for forming the light-transmitting window, of the shell through a sensor fixing sleeve; the photoelectric sensor comprises a light transmitter and a light receiver; the light transmitter and the light receiver are arranged adjacently. According to the oximeter provided by the invention, the light transmitter and the light receiver are located on one side of a finger, and the blood oxygen saturation degree is measured by adopting a reflection manner; the oximeter is a card type and the size of the card is similar with a bank card, so that the oximeter has a light and thin structure and is more convenient to carry and use.
Description
Technical field
The present invention relates to human body Oximetry technical field, in particular to a kind of BOLD contrast and oxygen saturation monitor method.
Background technology
Hemoglobin (hb) is the important component part of hemocyte, and it is responsible for the other by oxygen from pulmonary delivery to body
Tissue.Hemoglobin amount of oxygen contained at any one time is referred to as oxygen saturation.As a percentage, it is blood to oxygen saturation
The ratio of the oxygen content of Lactoferrin and hemoglobin oxygen carrying capacity.Blood oxygen saturation (abbreviation blood oxygen) be reflection human body respiration function and
Whether normally oxygen content important physiological parameter, it is an important physiology ginseng showing whether each tissue of our human bodies is healthy
Number, oxygen content is low, and health declines naturally, severe depletion of oxygen also can directly lead suffocate, suffer a shock, the generation of the tragedy such as death.
By the measurement of blood oxygen saturation, the oxygen content of patient can be understood in time.
BOLD contrast is the method that monitoring provides measurement blood oxygen saturation or arterin saturation non-invasively.
Existing BOLD contrast has two kinds of finger tip contacts formula, earlobe contacts formula, for the considering of accuracy to detection, the content of blood oxygen,
The measurement of saturation is most in finger measurement, typically adopts Fingerstall type oximeter.
Existing Fingerstall type oximeter commonly uses transmitted light technology to determine blood oxygen saturation, light emission module transmitting one
To on finger, to Optical Receivers after light transmission, different blood oxygen saturations can lead to Optical Receivers to produce to bundle light irradiation
Photo-signal intensity is different, can detect the blood oxygen saturation in blood of human body accordingly.So, light emission module and light
Receiver module is located at the both sides of finger, and BOLD contrast needs upper and lower two housings, and profile is relatively cumbersome, is not easy to wear.
Content of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of BOLD contrast and oxygen saturation monitor method, and BOLD contrast is in
Card form, structure is frivolous, carry with easy to use.
In a first aspect, embodiments providing a kind of BOLD contrast, including card form shell, the side of described shell sets
It is equipped with optical transmission window, described enclosure is formed with the cavity accommodating measurement assembly, described measurement assembly includes being arranged on described
Circuit board in cavity, power module and photoelectric sensor；
Described photoelectric sensor is arranged on inside described optical transmission window, is connected to shell by sensor mounting sleeve and forms institute
State on the side wall of optical transmission window；Described photoelectric sensor includes optical transmitting set and optical receiver；Described optical transmitting set and described light
Receptor is disposed adjacent；
The photoamplifier circuit that light electric drive circuit is provided with described circuit board, is sequentially connected, photoelectric switching circuit, filter
Wave circuit, analog to digital conversion circuit and control chip；
Described smooth electric drive circuit is connected with described optical transmitting set, is controlled by described control chip, drives described light transmitting
Device sends the light of predetermined wavelength；After the light that described optical transmitting set sends reflects through human body, as optical signal by described optical receiver
Receive；
The input of described photoamplifier circuit is connected with described optical receiver；Described optical receiver is used for receiving described light
The light that emitter sends, the optical signal that described photoamplifier circuit receives to described optical receiver is processed, after processing
Optical signal be sent to described photoelectric switching circuit and be converted to the signal of telecommunication, the described signal of telecommunication is filtered locating through described filter circuit
After reason, then through analog to digital conversion circuit, be converted to digital signal, described control chip is analyzed to described digital signal and counts
Calculate, obtain blood oxygen saturation.
In conjunction with a first aspect, embodiments providing the first possible embodiment of first aspect, wherein: institute
State and at optical transmission window, be provided with touch sensible electrode, described inside the shell is provided with the touch sensible core being connected with touch sensible electrode
Piece；Described touch sensible chip is connected with described control chip, for receiving the finger that described touch sensible electrode sends again
After touch signal, control chip is notified to start described measurement assembly work.
In conjunction with the first possible embodiment of first aspect or first aspect, embodiments provide first party
The possible embodiment of the second in face, wherein: the described shell opposite side relative with being provided with described optical transmission window side
It is provided with display part on the wall of side；The display unit being connected with described control chip, described display part are provided with described circuit board
It is connected with described display unit, for showing the calculated described blood oxygen saturation of described control chip.
In conjunction with the possible embodiment of the second of first aspect, embodiments provide first aspect the third
Possible embodiment, wherein: described display part includes concealed screen and is arranged on the LED light source of described inside the shell；Described
Concealed screen is to be gathered in display part area by the water-proof light permeable hole of laser engraving, described water-proof light permeable hole on shell
Domain；Described LED light source is connected with described display unit.
In conjunction with a first aspect, embodiments providing the 4th kind of possible embodiment of first aspect, wherein: institute
State optical transmitting set and include the infrared light of the light that launch wavelength is the red emitter of light of 660nm and launch wavelength is 940nm and send out
Emitter.
In conjunction with a first aspect, embodiments providing the 5th kind of possible embodiment of first aspect, wherein: institute
State and the data storage cell being connected with described control chip is additionally provided with circuit board, described data storage cell is used for storing institute
State the calculated described blood oxygen saturation of control chip.
In conjunction with the 5th kind of possible embodiment of first aspect or first aspect, embodiments provide first party
The 6th kind of possible embodiment in face, wherein: be additionally provided with data transmission circuit on described circuit board, described data transfer electricity
Road is used for for calculated for described control chip described blood oxygen saturation being transferred to monitoring main frame.
In conjunction with a first aspect, embodiments providing the 7th kind of possible embodiment of first aspect, wherein:
Between described photoelectric switching circuit and described filter circuit, it is additionally provided with optical signal processing circuit；The output of described filter circuit
End is connected with the input of described optical signal processing circuit, for filtering the dry of the environment photoelectric current that described optical receiver receives
Disturb.
Second aspect, the embodiment of the present invention also provides a kind of blood oxygen measuring method, comprising:
Light electric drive circuit, under control chip effect, drives optical transmitting set to send pre- standing wave according to the lighting timings setting
Long light；
The light that described optical transmitting set sends, after human body reflection, is received by optical receiver as optical signal；
The optical signal that photoamplifier circuit receives to described optical receiver is amplified processing, and is sent to opto-electronic conversion
Circuit；
Optical signal after processing and amplifying is converted to the signal of telecommunication by described photoelectric switching circuit；
Filter circuit is filtered to the described signal of telecommunication processing, and is sent to analog to digital conversion circuit；
The signal of telecommunication after Filtering Processing is converted to digital signal by analog-digital conversion circuit as described；
Control chip is analyzed to described digital signal and calculates, and obtains blood oxygen saturation.
In conjunction with second aspect, embodiments provide the first possible embodiment of second aspect, wherein: institute
State after the optical signal after processing and amplifying is converted to the signal of telecommunication by photoelectric switching circuit, the described signal of telecommunication is through optical signal prosessing electricity
Road, filters the interference of the environment photoelectric current that described optical receiver receives.
BOLD contrast provided in an embodiment of the present invention, optical transmitting set and optical receiver are located at finger side, using the side of reflection
Formula measures blood oxygen saturation, and BOLD contrast is in card form, and, similar to bank card, structure is frivolous for the size of card, more convenient carry and
Use.
For enabling the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to use required in embodiment
Figure is briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows a kind of perspective view of BOLD contrast that one embodiment of the invention is provided；
Fig. 2 shows a kind of front view of BOLD contrast that one embodiment of the invention is provided；
Fig. 3 shows a kind of sectional view of BOLD contrast that one embodiment of the invention is provided；
Fig. 4 shows the circuit connecting relation figure within a kind of BOLD contrast that one embodiment of the invention is provided；
The flow chart that Fig. 5 shows a kind of oxygen saturation monitor method that another embodiment of the present invention is provided.
In figure part numbers illustrate: 1- shell；2- photoelectric sensor；3- circuit board；4- power module；5-led light source；
11- optical transmission window；12- display part；21- sensor mounting sleeve；22- optical transmitting set；23- optical receiver；The electrically amplified electricity of 401- light
Road；402- photoelectric switching circuit；403- filter circuit；404- analog to digital conversion circuit；405- light electric drive circuit；406- controls core
Piece；407- data storage cell；408- display unit.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
Middle accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment only
It is a part of embodiment of the present invention, rather than whole embodiments.The present invention generally described and illustrated in accompanying drawing herein is real
The assembly applying example can be arranged with various different configurations and design.Therefore, below to the present invention's providing in the accompanying drawings
The detailed description of embodiment is not intended to limit the scope of claimed invention, but is merely representative of the selected reality of the present invention
Apply example.Based on embodiments of the invention, the institute that those skilled in the art are obtained on the premise of not making creative work
There is other embodiment, broadly fall into the scope of protection of the invention.
At present, Fingerstall type oximeter commonly uses transmitted light technology to determine blood oxygen saturation, light emission module transmitting one
Bundle light irradiation on finger, to Optical Receivers after light transmission, the optical signal that differed according to the intensity that Optical Receivers receives,
The blood oxygen saturation in blood of human body can be detected.But, such structure, light emission module and Optical Receivers are located at handss
The both sides referring to, BOLD contrast needs upper and lower two housings, and profile is relatively cumbersome, is not easy to wear.For this reason, the embodiment of the present invention provides
Optical transmitting set and optical receiver be placed in the card form BOLD contrast of finger the same side.
Fig. 1 shows the perspective view of the BOLD contrast of the present embodiment, and Fig. 2 shows the BOLD contrast of the present embodiment
Front view, Fig. 3 shows the sectional view of the BOLD contrast of the present embodiment.One embodiment of the invention is can be seen that from Fig. 1 to Fig. 3
The BOLD contrast being provided, including card form shell 1, the side of shell 1 is provided with optical transmission window 11, and opposite side is provided with display part
12, shell 1 is internally formed the cavity accommodating measurement assembly.
Shell 1 can be metal shell, such as aluminum alloy casing, almag shell or material shell etc..Shell 1
Can be non-metal shell, such as cabinet, the plastic material being suitable to make shell mainly has pc material, abs material, abs
With pc synthetic material.Pc material, also referred to as Merlon, have the property that intensity is high, and tensile strength is 69mpa, bending resistance
Qu Qiangdu is 96mpa；High temperature resistant, life-time service is resistant to 130 DEG C of ambient temperature；Raw material color matching and surface-coated are not so good as abs.
Abs is propylene-butadiene-the third ethylene copolymer, has the property that low intensity, tensile strength 43mpa, counter-bending strong
Degree 79mpa；Non-refractory, life-time service temperature must not be higher than 60 DEG C；Mobility, coloring and surface spraying and plating performance are equal
Good.Abs and pc synthetic material, takes both features above-mentioned, has excellent moulding processability, good fluidity, intensity is higher,
Tensile strength is 56mpa, and flexural strength is 86mpa.
Display part 12 can be shown during measurement, do not measured using led display screen or the lcd display screen being embedded on shell
Shi Yinzang；Can also be in the form of another kind of concealed screen, particularly as follows: display part 12 includes the concealed screen on shell
With the LED light source being arranged on described inside the shell.Concealed screen is by the water-proof light permeable hole of laser engraving on shell, prevents
Water loophole gathers in display part region, in order that the public can be real it is clear that the water-proof light permeable hole shown in Fig. 1 is larger
On border, water-proof light permeable hole is by laser engraving and its tiny, is visually hardly visible, and only high light can be with printing opacity.So in accident
It is impossible to see during amount, it is concealed screen, in measurement display, the high light that LED light source sends passes through water-proof light permeable hole, permissible
See the numeral of display clearly.Described display screen or LED light source are connected with display unit.
The shell of the present embodiment can be arranged to be made up of the upper shell linking together and lower house.Upper shell and lower casing
Body clamping or snap together, it would however also be possible to employ dismountable mode such as screw connects, and is overhauled or change after conveniently taking apart
Battery.Charging inlet is also provided with housing, for charging for rechargeable battery.After first rechargeable battery can also being taken out, then enter
Row charges.
Further, it is provided with touch sensible electrode (not shown) outside optical transmission window 11, inside the shell is provided with and touches
The touch sensible chip that induction electrode connects；Touch sensible chip is connected with control chip again, for receiving touch sensible electricity
After the finger touch signal that pole sends, notify control chip to start measurement assembly and be operated, it is achieved thereby that finger contact is opened
During the contact of machine, no finger, automatic shutdown, save electric energy.
Above-mentioned measurement assembly includes circuit board 3, power module 4 and the photoelectric sensor 2 being arranged in cavity.Power supply mould
Block 4 adopts button cell or rechargeable battery.Photoelectric sensor 2 is arranged on inside optical transmission window 11, by sensor mounting sleeve
21 are connected to shell forms on the side wall of optical transmission window or at optical transmission window.Optical transmission window 11 can be using transparent acrylic or saturating
Bright sheet glass etc. covers and seals, and has reached dust-proof effect.Photoelectric sensor 2 includes optical transmitting set 22 and optical receiver 23.
Optical transmitting set 22 and optical receiver 23 are disposed adjacent.During measurement, strong optical transmission window 11 is directed at finger tripe position, optical transmitting set 22 He
Optical receiver 23 is located at the same side of finger.
The photoamplifier circuit that light electric drive circuit is provided with circuit board 3, is sequentially connected, photoelectric switching circuit, filtering
Circuit, analog to digital conversion circuit and control chip.
Fig. 4 shows the circuit connecting relation figure of the BOLD contrast that the embodiment of the present invention is provided.As shown in figure 4, photoelectricity drives
Galvanic electricity road 405 one end is connected with optical transmitting set 22, and the other end is connected with control chip 406, is controlled by control chip 406, drives
Optical transmitting set 22 sends the light of predetermined wavelength.After the light that optical transmitting set 22 sends reflects through human body, as optical signal by light-receiving
Device 23 receives.
The input of photoamplifier circuit 401 is connected with optical receiver 23.Optical receiver 23 is used for receiving optical transmitting set 22
The light sending, the optical signal that photoamplifier circuit 401 receives to optical receiver 23 is processed, and the optical signal after processing is passed
Deliver to photoelectric switching circuit 402 and be converted to the signal of telecommunication, after the filtered circuit of the signal of telecommunication 403 is filtered processing, then through modulus
Change-over circuit 404, is converted to digital signal, control chip 406 is analyzed to digital signal and calculates, and obtains blood oxygen saturation
Degree.Control chip 406 by being analyzed to input data and can also calculate, and obtains heart rate value.Above-mentioned filter circuit 403
Noise jamming and motion artifacts can be filtered.
Wherein, optical transmitting set 22 can launch the light of two kinds of different wave lengths, and one is the HONGGUANG that wavelength is 660nm, and one is ripple
The infrared light of a length of 940nm.Light electric drive circuit 405, under the control of control chip 406, drives optical transmitting set 22 according to default
Tranmitting frequency in the different light of different moment launch wavelengths.
Another kind of implementation that the light of two kinds of different wave lengths launched by optical transmitting set 22 is: optical transmitting set includes two transmittings
Device, one is the red emitter of the light that launch wavelength is 660nm, and one is the infrared transmitter of the light that launch wavelength is 940nm.
Optical receiver 23 can arrange one, for receiving the light of two kinds of different wave lengths it is also possible to setting two, connects respectively
Receive the light of two kinds of different wave lengths.
The data storage cell 407 being connected with control chip 406 and display unit 408 are additionally provided with foregoing circuit plate,
Display unit 408 is connected with the LED light source of display part 12 or display screen, for the calculated blood oxygen of display control chip 406
Saturation and heart rate value.Data storage cell 407 is used for the calculated described blood oxygen saturation of storage control chip 406 and the heart
Rate value.
In another embodiment, photoamplifier circuit, photoelectric switching circuit, filter circuit, analog to digital conversion circuit, control core
Piece data transmission circuit is sequentially connected.The input of photoamplifier circuit 401 is connected with optical receiver 23, and optical receiver 23 is used
In receiving the light that optical transmitting set 22 sends, the optical signal that photoamplifier circuit 401 receives to optical receiver 23 is processed, will
Optical signal after process is sent to photoelectric switching circuit 402 and is converted to the signal of telecommunication, and the filtered circuit of the signal of telecommunication 403 is filtered locating
After reason, then through analog to digital conversion circuit 404, be converted to digital signal, control chip 406 described digital signal is analyzed and
Calculate, obtain blood oxygen saturation.Control chip 406 by being analyzed to input data and can also calculate, and obtains heart rate value.
Data transmission circuit is used for for calculated for described control chip described blood oxygen saturation being transferred to monitoring main frame.
Wherein, data transmission circuit can adopt radio connection, it would however also be possible to employ wired connection mode and monitoring master
Machine connects, and completes data transfer.The wireless mode connecting includes bluetooth connection, infrared connection, wifi connects or less radio-frequency connects
The mode such as connect.Wired connection is that data transmission circuit adopts data wire to be connected with monitoring main frame.
Certainly, this embodiment can also include data transmission circuit and above-mentioned data storage cell simultaneously and display is single
Unit.After measurement result is stored and shows, can be transferred on monitoring main frame simultaneously.
In view of during measurement, there is the interference of ambient light.Base in the technical scheme of any of the above-described embodiment
On plinth, between photoelectric switching circuit 402 and filter circuit 403, it is additionally provided with optical signal processing circuit (not shown).Filtered electrical
The outfan on road 403 is connected with the input of optical signal processing circuit, for filtering the environment photoelectricity that optical receiver 23 receives
The interference of stream.
The BOLD contrast that the embodiment of the present invention is provided, overall is in card form, and general thickness is less than 0.2cm, due to adopting
Reflectometry technique, equipment form is no longer limited to traditional fingerstall mode, and that can do is lighter and thinner, is easy to carry.Use
When, only finger tripe position need to be directed at optical transmission window, optical transmitting set and optical receiver are all located at the same side of finger, use
Convenient.
The BOLD contrast providing in above-described embodiment is corresponding, and another embodiment of the present invention additionally provides a kind of oxygen saturation monitor side
Method.The flow chart that Fig. 5 shows this oxygen saturation monitor method, as shown in figure 5, the method comprises the steps:
Step s501, light electric drive circuit, under control chip effect, drives optical transmitting set according to the lighting timings setting
Send the light of predetermined wavelength；
Step s502, the light that optical transmitting set sends, after human body reflection, is received by optical receiver as optical signal；
Step s503, photoamplifier circuit is amplified to the optical signal that optical receiver receives processing, and is sent to light
Power conversion circuit；
Step s504, the optical signal after processing and amplifying is converted to the signal of telecommunication by photoelectric switching circuit；
Step s505, filter circuit is filtered to the described signal of telecommunication processing, and is sent to analog to digital conversion circuit；
Step s506, the signal of telecommunication after Filtering Processing is converted to digital signal by analog to digital conversion circuit；
Step s507, control chip is analyzed to described digital signal and calculates, and obtains blood oxygen saturation.
In addition, when measuring the blood oxygen saturation of blood, in addition to obtaining blood oxygen saturation numerical value, also thereby is achieved blood vessel
The pulsation information that interior blood is produced due to heart contraction and diastole, i.e. heart rate value.These pulsation informations can be when being shown in
Obtain in the series of periodic continually varying waveform of the oximetry data on countershaft.Therefore, control chip 406 is calculating blood oxygen
It is also possible to by analysis and calculate while saturation, obtain heart rate value.
Further, the optical signal after processing and amplifying is converted to the signal of telecommunication by the photoelectric switching circuit described in step s504
Afterwards, the signal of telecommunication also needs to through optical signal processing circuit, filters the interference of the environment photoelectric current that optical receiver receives.
It should be understood that disclosed BOLD contrast and oxygen saturation monitor method in embodiment provided by the present invention, permissible
Realize by another way.Device embodiment described above is only schematically, for example, the division of described unit,
It is only a kind of division of logic function, actual can have other dividing mode when realizing, and for example, multiple units or assembly can
To combine or to be desirably integrated into another system, or some features can be ignored, or does not execute.Described say as separating component
Bright unit can be or may not be physically separate, as the part that unit shows can be or can not also
It is physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to actual need
Select the purpose to realize this embodiment scheme for some or all of unit therein.
In addition, each functional unit in the embodiment that the present invention provides can be integrated in a processing unit, also may be used
To be that unit is individually physically present it is also possible to two or more units are integrated in a unit.
If described function realized using in the form of SFU software functional unit and as independent production marketing or use when, permissible
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
Partly being embodied in the form of software product of part that prior art is contributed or this technical scheme, this meter
Calculation machine software product is stored in a storage medium, including some instructions with so that a computer equipment (can be individual
People's computer, server, or network equipment etc.) execution each embodiment methods described of the present invention all or part of step.
And aforesaid storage medium includes: u disk, portable hard drive, read only memory (rom, read-only memory), random access memory are deposited
Reservoir (ram, random access memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying
Relative importance.
Last it is noted that the specific embodiment of embodiment described above, the only present invention, in order to the present invention to be described
Technical scheme, be not intended to limit, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this
Bright be described in detail, it will be understood by those within the art that: any those familiar with the art
The invention discloses technical scope in, it still can be modified to the technical scheme described in previous embodiment or can be light
It is readily conceivable that change, or equivalent is carried out to wherein some technical characteristics；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of embodiment of the present invention technical scheme.The protection in the present invention all should be covered
Within the scope of.Therefore, protection scope of the present invention should described be defined by scope of the claims.
Claims (10)
1. a kind of BOLD contrast it is characterised in that: include card form shell, the side of described shell is provided with optical transmission window, described
Enclosure is formed with the cavity accommodating measurement assembly, and described measurement assembly includes circuit board, the electricity being arranged in described cavity
Source module and photoelectric sensor；
Described photoelectric sensor is arranged on inside described optical transmission window, by sensor mounting sleeve be connected to shell formed described
On the side wall of light window；Described photoelectric sensor includes optical transmitting set and optical receiver；Described optical transmitting set and described light-receiving
Device is disposed adjacent；
The photoamplifier circuit that light electric drive circuit is provided with described circuit board, is sequentially connected, photoelectric switching circuit, filtered electrical
Road, analog to digital conversion circuit and control chip；
Described smooth electric drive circuit is connected with described optical transmitting set, is controlled by described control chip, drives described optical transmitting set to send out
Go out the light of predetermined wavelength；The light that described optical transmitting set sends, after human body reflection, is received by described optical receiver as optical signal；
The input of described photoamplifier circuit is connected with described optical receiver；Described optical receiver is used for receiving described light transmitting
The light that device sends, the optical signal that described photoamplifier circuit receives to described optical receiver is processed, by the light after processing
Signal is sent to described photoelectric switching circuit and is converted to the signal of telecommunication, and the described signal of telecommunication is filtered processing through described filter circuit
Afterwards, then through analog to digital conversion circuit, be converted to digital signal, described control chip is analyzed to described digital signal and counts
Calculate, obtain blood oxygen saturation.
2. BOLD contrast according to claim 1 it is characterised in that: be provided with touch sensible electrode at described optical transmission window,
Described inside the shell is provided with the touch sensible chip being connected with touch sensible electrode；Described touch sensible chip again with described control
Chip connects, described for after receiving the finger touch signal that described touch sensible electrode sends, notifying control chip to start
Measurement assembly works.
3. BOLD contrast according to claim 1 and 2 it is characterised in that: described shell be provided with described optical transmission window one
It is provided with display part on the side wall of the relative opposite side in side；The display being connected with described control chip is provided with described circuit board
Unit, described display part is connected with described display unit, for showing the calculated described blood oxygen saturation of described control chip
Degree.
4. BOLD contrast according to claim 3 it is characterised in that: described display part includes concealed screen and be arranged on institute
State the LED light source of inside the shell；Described concealed screen is by the water-proof light permeable hole of laser engraving, described waterproof on shell
Loophole gathers in display part region；Described LED light source is connected with described display unit.
5. BOLD contrast according to claim 1 it is characterised in that: it is 660nm that described optical transmitting set includes launch wavelength
The infrared transmitter of the red emitter of the light and launch wavelength light for 940nm.
6. BOLD contrast according to claim 1 it is characterised in that: be additionally provided with described circuit board and described control chip
The data storage cell connecting, described data storage cell is used for storing the calculated described blood oxygen saturation of described control chip
Degree.
7. the BOLD contrast according to claim 1 or 6 it is characterised in that: be additionally provided with described circuit board data transfer electricity
Road, described data transmission circuit is used for for calculated for described control chip described blood oxygen saturation being transferred to monitoring main frame.
8. BOLD contrast according to claim 1 it is characterised in that: described photoelectric switching circuit and described filter circuit it
Between, it is additionally provided with optical signal processing circuit；The outfan of described filter circuit is connected with the input of described optical signal processing circuit
Connect, for filtering the interference of the environment photoelectric current that described optical receiver receives.
9. a kind of blood oxygen measuring method of the BOLD contrast described in claim 1 is it is characterised in that include:
Light electric drive circuit, under control chip effect, drives optical transmitting set to send predetermined wavelength according to the lighting timings setting
Light；
The light that described optical transmitting set sends, after human body reflection, is received by optical receiver as optical signal；
The optical signal that photoamplifier circuit receives to described optical receiver is amplified processing, and is sent to opto-electronic conversion electricity
Road；
Optical signal after processing and amplifying is converted to the signal of telecommunication by described photoelectric switching circuit；
Filter circuit is filtered to the described signal of telecommunication processing, and is sent to analog to digital conversion circuit；
The signal of telecommunication after Filtering Processing is converted to digital signal by analog-digital conversion circuit as described；
Control chip is analyzed to described digital signal and calculates, and obtains blood oxygen saturation.
10. blood oxygen measuring method according to claim 9 it is characterised in that: described photoelectric switching circuit is by processing and amplifying
After optical signal afterwards is converted to the signal of telecommunication, the described signal of telecommunication, through optical signal processing circuit, filters described optical receiver and receives
The interference of the environment photoelectric current arriving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957963.XA CN106344041A (en) | 2016-10-27 | 2016-10-27 | Oximeter and blood oxygen monitoring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957963.XA CN106344041A (en) | 2016-10-27 | 2016-10-27 | Oximeter and blood oxygen monitoring method |
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Family
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| CN201610957963.XA Pending CN106344041A (en) | 2016-10-27 | 2016-10-27 | Oximeter and blood oxygen monitoring method |
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| CN111820912A (en) * | 2019-04-17 | 2020-10-27 | 深圳市理邦精密仪器股份有限公司 | Medical equipment and display method of light intensity of medical equipment |
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