CN115105069A - Blood oxygen detection device - Google Patents
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- CN115105069A CN115105069A CN202210693733.2A CN202210693733A CN115105069A CN 115105069 A CN115105069 A CN 115105069A CN 202210693733 A CN202210693733 A CN 202210693733A CN 115105069 A CN115105069 A CN 115105069A
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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
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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
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0064—Body surface scanning
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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
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
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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
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
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Abstract
The invention relates to the technical field of blood characteristic measurement, in particular to a blood oxygen detection device, which comprises a power supply; the emitting module is used for emitting detection light waves into the skin; the measuring module is used for receiving the detection light wave; further comprising: the pressure applying module is used for applying pressure to the skin of the testee and rebounding to reset; the camera is used for collecting video information of a pressed part of the skin of the testee when the pressing module is started; the control module is used for acquiring video information, judging the time points of the skin of the testee when the skin is pressed and rebounded by using an interframe difference method, obtaining the rebounded time after the skin is pressed, judging the interval, and adjusting the light wave intensity according to the difference of the intervals where the rebounded time is located. Compared with the traditional scheme, the invention ensures the maximum cruising of the device while solving the problem that the individual difference influences the blood oxygen detection precision.
Description
Technical Field
The invention relates to the technical field of blood characteristic measurement, in particular to a blood oxygen detection device.
Background
Blood oxygen is simply oxygen in blood, the normal oxygen content of a human body is about 90%, the higher the oxygen content in blood is, the better the metabolism of the human body is, and the too low oxygen supply of the human body can be caused. Since oxygen is required for all cells in the human body, most functions of the body are affected by abnormal blood oxygen content, and therefore, the clinical application of the blood oxygen saturation detection in medicine, surgery, intensive care unit, etc. is very common.
Oxygen is an essential condition for human survival, and is delivered to various organs of our body through blood to supply oxygen, starting from the inhalation of air. Of course, the oxygen needs a vehicle, and the vehicle carried by the vehicle is called hemoglobin, which is a protein responsible for transporting oxygen in red blood cells, and one hemoglobin (horn-shaped object) can carry four oxygen molecules (blue); at this time, the "loaded" hemoglobin is referred to as oxygen saturated hemoglobin.
Hemoglobin becomes more reddish in color when loaded with 4 oxygen molecules. By the time the oxygen molecules "get off the car", the hemoglobin becomes dimmer. This difference in color is also reflected in the reflectivity for both infrared and infrared light sources. When receiving red light irradiation, the oxygen saturated hemoglobin has higher red light reflectivity and lower infrared light reflectivity because of being reddish; conversely, when hemoglobin contains insufficient oxygen, the reflectance of red is low, and the reflectance of infrared light is high. By analyzing the different reflectivities of the two light sources, the ratio of the oxygen-saturated hemoglobin in all hemoglobin is calculated, and the blood oxygen saturation can be obtained.
A typical oximeter sensor has a pair of LEDs that face a photodiode through a translucent portion of the patient's body, typically the fingertip or earlobe. One of the LEDs is red, with a wavelength of 660 nm; the other is infrared, and the wavelength is 940 nm. The percentage of blood oxygen is calculated by measuring the two wavelengths of light having different absorbencies after they have passed through the body.
The light source of the existing blood oxygen saturation detection device is generally a point light source, so that only part of light participates in detection, the light intensity is low, signals are weak, and the complexity of a detection device and the complexity of subsequent processing are increased.
As disclosed in the patent publication CN105559795B, a wearable blood oxygen detecting device and a blood oxygen sensor thereof include: the light-emitting device is arranged on the chip substrate and used for emitting detection light waves into tissues to be detected; the first light guide device is arranged on the light emitting device and used for reflecting the detection light waves and then enabling the detection light waves to enter the tissue to be detected; the detection device is arranged on the chip substrate and used for measuring the detection light wave which is reflected from the tissue to be detected and is positioned in the detection range; and the second light guide device is used for reflecting the detection light wave outside the detection range and then measuring the detection light wave by the detection device.
According to the invention, the first light guide device is arranged on the light emitting device, so that the detection light wave is changed from vertical incidence to oblique incidence after being reflected, and is convenient to reflect in the tissue to be detected; the second light guide device is arranged on the detection device, so that more detection light waves are measured by the detection device after being reflected, and the utilization rate of the detection light waves is improved.
However, when the present invention encounters an individual difference, for example, when the local skin of the subject is too thick and hard, the effect of the detection light wave penetrating the skin is weakened, and the detection data will have a significant error, but if the intensity of the detection light wave is only increased, the detection data of some subjects (easy to detect) will have a deviation problem, and the power consumption is also high, which seriously affects the cruising ability and the service life of the device, so a device capable of solving the problem that the blood oxygen detection precision is affected by the individual difference is now required.
Disclosure of Invention
The invention provides a blood oxygen detection device, and aims to solve the problem that the blood oxygen detection precision is influenced by individual difference.
In order to achieve the purpose, the technical scheme is as follows:
blood oxygen detection device includes:
a power source;
the emitting module is used for emitting detection light waves into the skin;
the measuring module is used for receiving the detection light wave;
further comprising:
the pressure applying module is used for applying pressure to the skin of the testee and rebounding to reset;
the camera is used for collecting video information of a pressed part of the skin of the testee when the pressing module is started;
the control module is used for acquiring video information and judging the time points of the skin compression and rebound of the testee by utilizing an interframe difference method to obtain the rebound time after the skin compression and judge intervals, when the rebound time is in a first interval, the light wave intensity is adjusted to be 80% -90% of a preset value, when the rebound time is in a second interval, the light wave intensity is adjusted to be the preset value, and when the rebound interval is in a third interval, the light wave intensity is adjusted to be 110% -120% of the preset value;
the power supply is electrically connected with the control module.
The principle and the beneficial technical effects of the technical scheme are as follows:
the device comprises a pressure applying module, a camera and a control module, wherein the pressure applying module is used for applying pressure to the skin of a testee and rebounding for resetting, the camera is used for collecting video information of the pressed part of the skin of the testee when the pressure applying module is started, and the control module is used for acquiring the video information and judging the time points of the skin pressing and rebounding of the testee by utilizing an interframe difference method to obtain the rebounding time after the skin is pressed and judge the section.
Because the module of exerting pressure is to the testee skin work of exerting pressure and the work of reseing of resilience, so when the work of exerting pressure goes on, the testee is exerted pressure the position blood and is moved towards both sides, and the position of exerting pressure resets the back, and the testee is exerted pressure the capillary vessel at position and is sufficient again, and blood is a large number of to be removed here, drives more hemoglobin and gushes over the position of being exerted pressure, does benefit to more sample collection, promotes the accuracy of blood oxygen detection data.
When the rebound time is in a first interval, the light wave intensity is adjusted to 80% -90% of the preset value, when the rebound time is in a second interval, the light wave intensity is adjusted to the preset value, when the rebound interval is in a third interval, the light wave intensity is adjusted to 110% -120% of the preset value, therefore, before the blood oxygen is measured by a testee, the device can carry out preliminary inspection and judgment on the skin elasticity and the state of the testee according to the rebound time after the skin is pressed, when the rebound time is in the first interval, the light wave intensity is adjusted to 80% -90% of the preset value, when the rebound time is in the second interval, the light wave intensity is adjusted to the preset value, when the rebound interval is in the third interval, the light wave intensity is adjusted to 110% -120% of the preset value, therefore, when the skin state of the testee is different, aiming at the testee with quick skin rebound, the intensity of the detection light wave is reduced, which is favorable for saving energy consumption, the cruising ability is improved, and when the testee with high skin hardness and slow rebound, the strength of the detection light wave is increased to be beneficial to penetrating the skin, so that the accuracy of the detection data is prevented from being influenced.
Because including emission module and measuring module, emission module is used for launching the detection light wave to the skin in, and measuring module is used for measuring the detection light wave, so in the light transmission back of suitable intensity gets into the skin, can realize accurate data acquisition through the reflection of light.
Because the power supply is electrically connected with the control module, the power supply can supply power to the control module.
This scheme realizes through module and the camera of exerting pressure to the test and the record of testee skin condition, promotes the hemoglobin sample quantity at the position of exerting pressure, promotes the accuracy of blood oxygen detection data. And the length of the skin rebound time of the testee is graded through the logic judgment of the control module, the intensity of the detection light wave is reduced to be beneficial to saving energy consumption when the skin rebounds fast, the cruising ability is improved, the intensity of the detection light wave is increased to be beneficial to penetrating the skin when the skin hardness rebounds slow, and the accuracy of detection data is prevented from being influenced.
And the data storage module is used for storing the detection information of the testee and a plurality of pictures with different skin colors.
Has the advantages that: so that the detection information of the testee can be stored.
The control module can be used for obtaining a picture at the camera and comparing the picture with a plurality of skin pictures with different skin colors in the data storage module, and starting the loudspeaker to warn the testee when the similarity between the skin of the testee and the existing picture is judged to be lower than a threshold value.
Has the advantages that: the normal blood oxygen detection is prevented from being influenced by the dye on the hand of the detected person, for example, the finger of the detected person is coated with nail polish, and is stained with the conditions of paint, mud and the like, and the detected person can be warned by sounding at the first time so as to clean the skin at the detection position for accurate blood oxygen detection.
Further, still include light sensor and emitting diode, light sensor, emitting diode and control module electric connection, light sensor are used for the ambient light intensity who acquires to obtain light intensity information, and control module acquires the light intensity information of light sensor department, and control module is used for when light intensity information is greater than the threshold value, and control module transmission turn-on signal gives emitting diode, and emitting diode sends out the warning testee after receiving turn-on signal.
Has the advantages that: ambient light is not generated by the emitting end, and the existence of the ambient light can influence the received light intensity of the measuring module and can directly influence the photocurrent intensity reflecting the characteristics of the medium. To improve the measurement accuracy, it is necessary to attenuate the intensity of the ambient light. The light sensor can detect the intensity of ambient light, and when ambient light was too strong, the controller opened emitting diode, and the warning testee so that promote detection effect.
Further, the system also comprises a transmission module which is used for transmitting the information to the appointed server.
Has the advantages that: and uploading the detection information of the testee to a server for subsequent data storage and processing.
Further, still include the receiver that is used for taking in control module and data storage module.
Has the advantages that: accomodate the back, the outward appearance is neater clean more.
Further, the module of exerting pressure includes that indicates to press from both sides, electro-magnet and metal sheet, indicate to press from both sides and open for the side has the little square box in finger hole, indicate the hole and be used for placing the testee finger, electro-magnet sliding connection is in finger hole below, and metal sheet fixed connection is in finger hole top.
Has the advantages that: the cost is lower, it is effectual to exert pressure, and pressure can be adjusted freely, but the electro-magnet automatic re-setting after the outage, does not need the extra energy.
Further, the finger clip is made of ABS materials.
Has the advantages that: the ABS material has better rigidity, hardness and impact resistance, and low cost.
Drawings
FIG. 1 is a logic diagram of embodiment 1 of the present invention;
FIG. 2 is a partial cross-sectional view of a right side view of a pressure application module of the present invention;
fig. 3 is a three-dimensional view of a pressure application module of the present invention.
Detailed Description
The following is further detailed by the specific embodiments:
the reference numbers in the drawings of the specification include: 1. a small square box; 2. a metal plate; 3. an electromagnet.
Example 1 is shown below:
blood oxygen detection device includes:
the power supply can be used for supplying power to all modules needing power, so that the cost of energy equipment is saved;
the emitting module comprises a red light LED with the wavelength of 660nm and an infrared light LED with the wavelength of 910nm and is used for emitting detection light waves into the skin;
the measuring module adopts a light receiver and is used for receiving the detection light wave;
further comprising:
the pressure applying module is used for applying pressure to the skin of the testee and rebounding to reset;
the camera is used for collecting video information of a pressed part of the skin of the testee when the pressing module is started;
the control module is used for acquiring video information and judging the time points of skin compression and rebound of a testee by using an interframe difference method to obtain the rebound time after the skin is compressed and perform interval judgment, when the rebound time is in a first interval, the light wave intensity is adjusted to 85% of a preset value, when the rebound time is in a second interval, the light wave intensity is adjusted to the preset value, and when the rebound interval is in a third interval, the light wave intensity is adjusted to 115% of the preset value;
wherein the module of exerting pressure adopts electro-magnet 3 and metal sheet 2, including pointing to press from both sides, electro-magnet 3 and metal sheet 2, indicate to press from both sides and open for the side has square little square box 1 who indicates the hole, indicate the hole and be used for placing the testee and point, electro-magnet 3 sliding connection is in the recess of 1 lower wall of little square box, and 2 screwed connection of metal sheet are at 1 upper wall of little square box.
The small square box is made of ABS material, and the ABS material has better rigidity, hardness and impact resistance and low cost.
When the electromagnet 3 is electrified, the camera is also electrified, and the skin picture of the testee is shot.
In the specific use process, a student of a first grade of a testee puts a finger into a finger hole in the small square box 1, the pressure application module is started, the electromagnet 3 is electrified, the electromagnet 3 moves towards one side of the metal plate 2 due to magnetism, the small finger is extruded by the force of 10N, the electromagnet 3 is powered off after being electrified for 1 second, the electromagnet 3 does not have magnetism any more, and the small finger is not extruded any more.
When the electromagnet 3 is electrified, the camera collects video information of the extruded part of the small bright finger, the control module adopts an Intel i5-8279U processor and components thereof, the control module obtains the video information of the camera and judges the time points of skin compression and skin rebound of a testee by using an interframe difference method to obtain the rebound time after the skin compression and judge the interval, the rebound time is in a first interval, and the light wave intensity is adjusted to 85% of the preset value. Of course, when the person to be tested is a normal middle-aged person, the rebound time is in the second interval, and the light wave intensity is adjusted to the preset value, and when the person to be tested is a construction worker with hard skin, the rebound time is in the third interval, and the light wave intensity is adjusted to 115% of the preset value, so that the light wave intensity can be properly adjusted according to the difference of the elasticity of the skin of the person to be tested.
The emission module comprises a red light LED with the wavelength of 660nm and an infrared LED with the wavelength of 910nm, after the intensity is determined, the detection light waves are emitted into the skin of the little bright finger, after reflection, the detection light waves are received by the measurement module, and accurate detection is carried out on the blood oxygen of the little bright finger.
Compare with traditional scheme, this scheme realizes through module and the camera of exerting pressure and to the test and the record of testee skin state, promotes the hemoglobin sample quantity at the position of exerting pressure, promotes the accuracy of blood oxygen detection data. And the length of the time for which the skin of the testee rebounds is graded through the logic judgment of the control module, the intensity of the detection light wave is reduced to be beneficial to saving energy consumption when the skin rebounds fast to the testee, the cruising ability is improved, the intensity of the detection light wave is increased to be beneficial to penetrating the skin when the skin hardness rebounds slow to the testee, and the accuracy of detection data is prevented from being influenced.
Example 2
The difference from the embodiment 1 is that the device further comprises a data storage module, and the data storage module is used for storing the detection information of the testee and a plurality of pictures with different skin colors.
The control module can be used for obtaining a picture at the camera and 300 skin pictures (corresponding relation between the skin pictures and the optimal light-emitting diode power) with different skin colors in the data storage module for comparison, starting the loudspeaker to warn the testee when the similarity between the skin of the testee and all the pictures is judged to be lower than 95%, and cleaning substances which are adhered to the skin, such as dye, soil, nail polish and the like and influence the detection precision.
Still include light sensor and emitting diode, light sensor, emitting diode and control module electric connection, light sensor is used for detecting environment illumination intensity, and control module acquires light intensity information, and control module is used for judging whether light intensity information size is greater than 50Lux, and when light intensity information size was greater than 50Lux, control module transmission was opened the signal and is given emitting diode, and emitting diode sends out the warning testee after receiving opening the signal.
The system also comprises a transmission module, and the transmission module is used for transmitting the information to the appointed server.
The device also comprises a display module, wherein the display module is connected with the control module and used for displaying the detection numerical value.
In the specific use process, a student of a testee grade one puts a finger to a device test position, the camera collects the picture information of the skin of the testee, the picture information is used for inputting an operation instruction to the control module, the control module judges that the similarity value of the skin image of the testee and the existing 300 common different skin color pictures in the data storage module is lower than 95%, the skin of the testee is judged to be stained with substances influencing the detection precision, the control module starts a loudspeaker, the testee is prompted to clean the skin, and the detection effect is improved.
The too high received light intensity that can influence measuring module of ambient light intensity to influence blood oxygen detection effect, therefore light sensor acquires ambient light intensity, and control module acquires the ambient light intensity among the light sensor, judges that the ambient light intensity starts emitting diode when too big, realizes warning little bright function.
The data storage module can store the small and bright blood oxygen detection information and 300 common different skin color pictures.
The transmission module uploads the small and clear blood oxygen detection information to the server, so that subsequent blood oxygen detection data can be conveniently stored and processed. The display module is connected with the control module, so that small and clear detection data are visualized, and the overall use experience is improved.
Still including being used for accomodating control module, transmission module and data module's receiver, promoted holistic portability and aesthetic property.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. Blood oxygen detection device includes:
a power source;
the emitting module is used for emitting detection light waves into the skin;
the measuring module is used for receiving the detection light wave;
it is characterized by also comprising:
the pressure applying module is used for applying pressure to the skin of the testee and rebounding to reset;
the camera is used for collecting video information of a pressed part of the skin of the testee when the pressing module is started;
the control module is used for acquiring video information and judging the time points of skin compression and rebound of a testee by using an interframe difference method to obtain the rebound time after the skin is compressed and perform interval judgment, when the rebound time is in a first interval, the light wave intensity is adjusted to be 80% -90% of a preset value, when the rebound time is in a second interval, the light wave intensity is adjusted to be the preset value, and when the rebound interval is in a third interval, the light wave intensity is adjusted to be 110% -120% of the preset value;
the power supply is electrically connected with the control module.
2. The blood oxygen detection device according to claim 1, wherein: the system also comprises a data storage module, wherein the data storage module is used for storing the detection information of the testee and a plurality of pictures with different skin colors.
3. The blood oxygen detection device according to claim 2, wherein: the control module can be used for obtaining a picture at the camera and comparing the picture with a plurality of skin pictures with different skin colors in the data storage module, and the loudspeaker is started to warn the testee when the similarity between the skin of the testee and the existing picture is judged to be lower than a threshold value.
4. The blood oxygen detection device according to claim 1, wherein: still include light sensor and emitting diode, light sensor, emitting diode and control module electric connection, light sensor are used for the ambient light intensity who acquires to obtain light intensity information, and control module acquires the light intensity information of light sensor department, and control module is used for when light intensity information is greater than the threshold value, and control module transmission turn-on signal gives emitting diode, and emitting diode is luminous after receiving turn-on signal and is warned the testee.
5. The blood oxygen detection device according to claim 4, wherein: the system also comprises a transmission module used for transmitting the information to the appointed server.
6. The blood oxygen detection device according to claim 1, wherein: still including being used for accomodating control module and data storage module's receiver.
7. The blood oxygen detection device according to claim 1, wherein: the pressing module comprises a finger clamp, an electromagnet and a metal plate, the finger clamp is a small square box with finger holes formed in the side face, the finger holes are used for placing fingers of a testee, the electromagnet is connected to the lower wall of the small square box in a sliding mode and in a groove formed in the lower wall of the small square box, and the metal plate is fixedly connected to the upper wall of the small square box.
8. The blood oxygen detection device of claim 7, wherein: the finger clip is made of ABS materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210693733.2A CN115105069A (en) | 2022-06-18 | 2022-06-18 | Blood oxygen detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210693733.2A CN115105069A (en) | 2022-06-18 | 2022-06-18 | Blood oxygen detection device |
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| Publication Number | Publication Date |
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| CN115105069A true CN115105069A (en) | 2022-09-27 |
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| CN202210693733.2A Pending CN115105069A (en) | 2022-06-18 | 2022-06-18 | Blood oxygen detection device |
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