CN211066547U - Calibration device for percutaneous jaundice tester - Google Patents
Calibration device for percutaneous jaundice tester Download PDFInfo
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- CN211066547U CN211066547U CN201921151172.3U CN201921151172U CN211066547U CN 211066547 U CN211066547 U CN 211066547U CN 201921151172 U CN201921151172 U CN 201921151172U CN 211066547 U CN211066547 U CN 211066547U
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Abstract
The utility model discloses a calibration device of a percutaneous jaundice tester, which comprises a casing, and a stepping motor rotating unit, a U-groove-shaped photoelectric switch positioning control unit, a standard color card unit and a controller unit which are arranged in the casing, wherein the controller unit is electrically connected with the stepping motor rotating unit and the U-groove-shaped photoelectric switch positioning control unit; the stepping motor rotating unit comprises a stepping motor and a standard color lump mounting base plate which are connected with each other, and the standard color lump unit is arranged in a mounting hole of the standard color lump mounting base plate. The utility model discloses a standard colour chip that the standard pottery color lump that corresponds 15 kinds of percutaneous bilirubin values is constituteed is compared, accomplishes the calibration automatically and marks percutaneous jaundice tester, helps the conventional measurement maintenance of mechanisms such as hospital, measurement institute, provides reliable support for medical percutaneous jaundice tester quality.
Description
Technical Field
The utility model relates to a percutaneous jaundice tester calibrating device belongs to measurement and detects technical field.
Background
Neonatal jaundice is a condition that bilirubin is accumulated in the body too much in the neonatal period to cause yellow symptoms of skin, mucous membrane, sclera and other parts of the whole body, and if the bilirubin is not treated in time, mental retardation, auditory disorder, death or permanent nervous system sequelae can be caused.
Neonatal jaundice is a common disease in newborns and can be generally distinguished as physiological jaundice and pathological jaundice. Physiological jaundice is that the serum bilirubin content of newborn infants is not beyond a permissible range, and the newborn infants can automatically disappear by means of feeding and excretion within a short time after birth. Beyond the physiological tolerance, we refer to pathological jaundice, which if not treated in time, can cause brain damage in the newborn, seriously affect the intelligence development, and even possibly cause death of the newborn.
A large number of clinical trials indicate that it would be beneficial to alleviate the symptoms and shorten the treatment course if neonatal jaundice could be effectively prevented and treated at an early stage. Therefore, it is important to the overall treatment to find out in time whether or not the newborn infant has jaundice and the degree of jaundice.
The traditional jaundice testing method mainly adopts a venous blood sampling method to measure bilirubin, and the method needs to repeatedly carry out blood drawing and testing on the newborn, so that the workload of medical personnel is increased, and great pain and wound infection risks are brought to the newborn. Therefore, the percutaneous jaundice tester which utilizes the light reflection method to measure bilirubin becomes the mainstream method for testing bilirubin of neonates, the method has the advantages of quick measurement, simple operation and low price, can realize real-time repeated measurement and dynamic monitoring, has no damage and adverse reaction to the neonates, and is widely applied to departments such as NICU/PICU, neonate department and the like of all levels of medical institutions.
The percutaneous jaundice tester measures the concentration of bilirubin precipitated in skin tissue of a newborn infant by using the light wave difference between blue light waves (450 nm) and green light waves (550 nm). The percutaneous jaundice tester probe has two light waves, and the minimum bilirubin concentration in the skin tissue of the newborn can be determined under the influence of melanin and the skin maturation stage by using the method, which cannot be achieved by the traditional method. When the probe is placed on the forehead or the sternum of the infant and the power supply is started, the light emitted by the xenon light tube is guided to the surface of the skin through the glass fiber and directly irradiates the skin. The light waves on the skin are repeatedly dispersed and absorbed and finally return to the glass fibers. The light returning to the glass fiber is partially dispersed in the superficial skin tissue via the fiber inner core (short light wave), and the other part of the light outer core (long light wave) penetrates into the skin tissue and reaches the corresponding photodiode. By calculating the difference in optical density, the common light wave between the epidermis and the dermis will be subtracted. Only the difference in optical density between the two wavelength regions in the skin tissue is obtained. The difference of the light wave density shows the associated serum bilirubin, and the concentration value of the serum bilirubin is directly displayed on a display.
With the wide use of the percutaneous jaundice tester, whether the accuracy and the reliability of the measurement of the bilirubin concentration of the newborn baby are generally regarded by medical staff, whether the bilirubin concentration level is accurately measured is very important for judging the illness state of the newborn baby, and the bilirubin concentration level is directly related to a treatment scheme of the medical staff, so that the percutaneous jaundice tester is regularly calibrated, the measurement accuracy is ensured, the percutaneous jaundice tester is not only invaginated by the neonatal medical staff, but also is in charge of measurement safety of a large number of percutaneous jaundice testers which are about to be used or have already entered the neonatal baby and are used for life protection and navigation, and the percutaneous jaundice tester has great significance.
The accurate measurement of the percutaneous jaundice tester is emphasized by manufacturers, medical service units, food and drug supervision and quality technology supervision departments, as a measurement department, the quality monitoring of the percutaneous jaundice tester is enhanced, and the measurement calibration and tracing are performed at regular fixed points, so that tragic events caused by inaccurate measurement of the tester are prevented from occurring from the source.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art's defect, provide a percutaneous jaundice tester calibrating device, whole device removes colour chip and backplate, other are the black, compare through the standard colour chip that the standard pottery color chip that corresponds 15 kinds of percutaneous bilirubin values is constituteed, accomplish the calibration automatically and mark percutaneous jaundice tester, help the routine measurement of mechanisms such as hospital, measurement institute to maintain, provide reliable support for medical percutaneous jaundice tester quality.
In order to solve the technical problem, the utility model provides a calibration device of a percutaneous jaundice tester, which is characterized by comprising a casing, a stepping motor rotating unit, a U-groove-shaped photoelectric switch positioning control unit, a standard color card unit and a controller unit, wherein the stepping motor rotating unit, the U-groove-shaped photoelectric switch positioning control unit and the controller unit are arranged in the casing, and the controller unit is electrically connected with the stepping motor rotating unit and the U-groove-shaped photoelectric switch positioning control unit; the stepping motor rotating unit comprises a stepping motor and a standard color lump mounting base plate which are connected with each other, and the standard color lump unit is arranged in a mounting hole of the standard color lump mounting base plate.
Preferably, the U-groove type photoelectric switch positioning control unit comprises two opposite-type photoelectric switches with the models of EE-SX672-WR, and the opposite-type photoelectric switches are arranged on one side of the standard color block mounting base plate.
Preferably, the stepping motor rotating unit further comprises a power driving circuit, and the power driving circuit is connected with the controller unit and the stepping motor.
Preferably, the standard color block mounting base plate is a black cylindrical plastic plate, 15 standard color block mounting holes are uniformly distributed along the circular plane of the standard color block mounting base plate, and the axial included angle of each standard color block mounting hole is 24 degrees.
Preferably, the bottom of the standard color block mounting bottom plate is provided with a circular plane, and a U-shaped groove is formed in the axial tangential direction of each standard color block mounting hole.
Preferably, the standard color card unit comprises standard color blocks and a white back plate, the standard color blocks are fifteen standard color blocks of 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35 and 40 values, and the standard color blocks are made of ceramic materials; the standard color block and the white back plate are both circular, and the diameter of the standard color block and the diameter of the white back plate are larger than the diameter of a probe of the percutaneous jaundice tester; the 0 value standard color block is a blank standard color block, and the other standard color blocks are pure yellow standard color blocks with different shades.
Preferably, the casing comprises an upper cover and a lower bottom plate which are connected through screws, and the stepping motor rotating unit, the U-groove-shaped photoelectric switch positioning control unit and the controller unit are arranged on the lower bottom plate; the upper cover is provided with a detection hole of a percutaneous jaundice tester probe to be tested and a touch screen, the touch screen is provided with a key and a real-time color block value display interface, and the key comprises a reset button and + and-buttons.
Preferably, the stepping motor is connected with the standard color lump mounting base plate through a rotating shaft, and the rotating shaft of the stepping motor is fixed in the rotating shaft mounting hole of the standard color lump mounting base plate.
The utility model discloses the beneficial effect who reaches:
(1) the position of the 0-value standard color block is detected through the correlation type photoelectric switch, so that the controller unit sends a pulse signal to control the stepping motor to rotate to the 0-value standard color block, and the reset of the 0-value standard color block is completed.
(2) The rotation of the stepping motor is completed by pressing the "+" and "-" buttons on the touch screen, and the rotation of the standard color block corresponding to one color block value is correspondingly increased or decreased by pressing the button once.
(3) By comparing the standard color cards consisting of the standard ceramic color blocks corresponding to the 15 percutaneous bilirubin values, the calibration and calibration of the percutaneous jaundice tester are automatically completed, the conventional measurement and maintenance of mechanisms such as hospitals and measurement hospitals are facilitated, and reliable support is provided for the quality of the medical percutaneous jaundice tester.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
fig. 2 is a schematic structural diagram of the present invention;
figure 3 is the structure diagram of the standard color block mounting base plate of the utility model.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, a calibration device for a percutaneous jaundice tester comprises a casing, and a stepping motor rotating unit, a U-slot type photoelectric switch positioning control unit, a standard color card unit and a controller unit which are arranged in the casing, wherein the controller unit is electrically connected with the stepping motor rotating unit and the U-slot type photoelectric switch positioning control unit; the stepping motor rotating unit comprises a stepping motor and a standard color lump mounting base plate which are connected with each other, and the standard color lump unit is arranged in a mounting hole of the standard color lump mounting base plate.
The method specifically comprises the following steps:
1. stepping motor rotating unit
As shown in fig. 2, the stepping motor rotating unit is structurally composed of a stepping motor 1 and a standard patch mounting base plate 2, wherein a rotating shaft 3 of the stepping motor 1 is directly inserted into and fixed to a stepping motor rotating shaft mounting hole 22 of the standard patch mounting base plate 2. The circuit mainly comprises a power driving circuit and a stepping motor 1, a controller unit 4 sends a pulse signal to the power driving circuit, the stepping motor 1 is driven to rotate for a fixed angle according to a set direction, meanwhile, a standard color block mounting base plate 2 is driven to rotate for a fixed angle, and each fixed angle corresponds to the axis of a color number block. Furthermore, the controller unit 4 controls the number of the sent pulses to control the angular displacement, so as to achieve the rotation of the blocks with different color numbers.
2. Standard color block mounting base plate
As shown in fig. 3, the standard color block mounting base plate 2 is a completely black cylindrical plastic plate with a certain thickness, 15 standard color block mounting holes 21 are uniformly distributed along the circular plane of the standard color block mounting base plate 2, and the axial included angle of each color block mounting hole 21 is 24 degrees; a slightly larger circular plane is arranged along the bottom of the standard color block mounting base plate 2, a U-shaped groove 23 is arranged in the axial tangential direction of each standard color block mounting hole 21, and a U-shaped groove is arranged between a 0-value standard color block mounting hole 24 and a 40-value color block mounting hole 24.
3. U-groove type photoelectric switch positioning control unit
The U-groove type photoelectric switch positioning control unit is mainly used for completing reset control of the device by two opposite type photoelectric switches 5 with the model number of EE-SX672-WR, and is also called as customization control of a 0-value standard color block, namely, the position at the moment, the 0-value standard color block is just positioned under a detection hole 6 of a percutaneous jaundice tester probe.
When the opposed photoelectric switch 5 is turned on by the U-shaped opposed light without a shield, the voltage signal collected by the controller unit 4 is at a low level, i.e., 0, and when a shield is present, the voltage signal collected by the controller unit 4 is at a high level, i.e., 1. Therefore, only when the two correlation photoelectric switches 5 are simultaneously conducted without a shielding object, namely when the voltage signals collected by the controller unit 4 at the moment are both 0, the positioning control of the standard color block with the value of 0 is completed.
The reset button of the touch screen 7 is pressed, and the position of the 0-value standard color card is detected through the correlation type photoelectric switch 5 consisting of the infrared transmitting tube and the infrared receiving tube, so that the controller unit 4 sends a pulse signal to control the stepping motor 1 to rotate to the 0-value standard color card.
4. Standard color card unit
The standard color card unit consists of standard color blocks 8 and a white back plate 9, wherein the standard color blocks 8 are fifteen standard color blocks with values of 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35 and 40, and the fifteen data values respectively correspond to bilirubin values of (0-40) mg/d L measured by a percutaneous jaundice tester, wherein the standard color blocks 8 and the white back plate 9 are both circular and have diameters larger than the diameter of a probe of the percutaneous jaundice tester, the 0-value standard color blocks are blank standard color blocks, and the other standard color blocks are pure yellow standard color blocks with different depths.
0. Fifteen standard color blocks of 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35 and 40 values are made of ceramic materials, have certain stability, are not easy to discolor and distort, and are the best choice as the color blocks. 2. 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35 and 40 values of standard patches of pure yellow of different shades, using a color scheme for printing four-color mode, i.e. CMYK emission, by means of image processing techniques, with different proportions of the three primary colors: mixing magenta, yellow, cyan and black to obtain yellow with different shades, and using the yellow as a corresponding bilirubin calibration value to finish calibration.
Because the CMYK mode is colored with 100% yellow, the measured value of the percutaneous jaundice is still not obtained as 20, and therefore, for color blocks higher than 20, the yellow depth can be increased by overlapping a plurality of color blocks so as to meet the requirement of the corresponding value standard color block, and here, the final overlapping height needs to be consistent with the height of a single color block.
5. Casing (CN)
The casing is a casing of the calibration device of the percutaneous jaundice tester, and is divided into an upper cover 10 and a lower bottom plate 11. Wherein, the upper cover 10 and the lower bottom plate 11 are connected by screws; the stepping motor rotating unit and the U-groove type photoelectric switch positioning control unit are both arranged on the lower bottom plate 11 through special structural parts; the controller unit 4 is mounted on the lower base plate 11 through screws; the upper cover 10 is provided with a detection hole 6 of a percutaneous jaundice tester probe to be tested and a touch screen 7;
because the external diameters of the probes of different manufacturers slightly deviate, most percutaneous jaundice testers on the market are used as standard holes, and in order to ensure the light impermeability of a calibration test environment, the black plastic sleeve can be sleeved outside the probe of the percutaneous jaundice tester to be tested, and then the detection is carried out. The probe detection hole 6 is a cylindrical hole with the depth of 3-5mm, and the probe is ensured to be just directly contacted with the corresponding standard color block 8 below the hole.
The touch screen 7 is provided with a real-time display interface of keys and color block values, and further provided with a reset button, "+", "; when the color block resetting device works normally, a resetting button is pressed, and the resetting and positioning control of the 0-value standard color block is carried out; each time the "+", - "button is pressed, the rotation of the standard color block corresponding to one color block value is increased or decreased correspondingly.
6. Controller unit
The controller unit 4 is responsible for the work of the whole device, drives the stepping motor rotating unit and the U-groove-shaped photoelectric switch positioning control unit to work, calculates the acquired signals, controls the rotation of the stepping motor 1 according to a set flow, completes the rotation of the standard color block 8 with the value of 0-40 and the reset of the standard color block with the value of 0, and simultaneously displays the color block value of the standard color block 8 under the current state on the touch screen 7 in real time.
A control method of a calibration device of a percutaneous jaundice tester comprises the following steps:
(1) and (3) placing the standard color blocks with the value of 0 into the specified standard color block mounting holes 21, placing other standard color blocks with the values of 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40 and the like in sequence anticlockwise, covering the upper cover 10 of the machine shell, and mounting and fixing the upper cover 10 of the machine shell.
(2) Starting the device, waiting for 2 seconds, observing a standard color block value displayed on the touch screen 7 at the moment after the initialization of the belt system is finished, if the standard color block value is not 0 value standard color block value or not the standard color block value required by a user, pressing a reset button of the touch screen, finishing the reset positioning function of the 0 value standard color block by the correlation type photoelectric switch 5 of the U-shaped photoelectric switch positioning control unit, judging the position of the 0 value standard color block when the voltage signal acquired by the controller unit 4 is 0, namely low level when the U-shaped correlation light is conducted without a shielding object, and judging the position of the 0 value standard color block when the voltage signal acquired by the controller unit 4 is 1, so that the 0 value standard color block on the standard color block mounting base plate 2 is directly opposite to the probe detection hole 6 by sending a pulse signal to control the rotation of the stepping motor 1, and the connecting line of two axes is vertically downward.
(3) The rotation of the stepping motor 1 is completed by pressing the + "," - "buttons on the touch screen 7, and the rotation of the standard color block 8 corresponding to one color block value is correspondingly increased or decreased by pressing the button once. Further, after resetting, at this time, a standard color block with a value of 0 corresponds to the position right below the probe detection hole 6, the "+" button of the touch screen is pressed once, the controller unit 4 receives a rotation command, sends a pulse signal to drive the stepping motor 1 to complete angular rotation, and at this time, the standard color block with a value of 2 is located right below the probe detection hole 6 to wait for calibration and detection.
(4) The method comprises the steps that a probe of the percutaneous jaundice tester to be tested is inserted into a probe detection hole 6, in order to guarantee the accuracy of testing and the particularity of reflected light, special full-black matt processing is conducted inside the whole device, it is guaranteed that substances except a standard color block 8 and other reflected light do not exist, the probe directly contacts the corresponding color block, after a power supply of the percutaneous jaundice tester to be tested is started, light rays emitted by a xenon tube are guided to the surface of the standard color block 8 through glass fibers and directly penetrate a white back plate 9 below the standard color block 8, partial absorption is conducted through the standard color block 8, then 100% of residual light is reflected by the white back plate, the residual light returns to the process of the glass fibers, and one-time testing is completed.
The utility model discloses a standard colour chip that the standard pottery color lump that corresponds 15 kinds of percutaneous bilirubin values is constituteed is compared, accomplishes the calibration automatically and marks percutaneous jaundice tester, helps the conventional measurement maintenance of mechanisms such as hospital, measurement institute, provides reliable support for medical percutaneous jaundice tester quality.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (8)
1. A calibration device of a percutaneous jaundice tester is characterized by comprising a machine shell, a stepping motor rotating unit, a U-groove-shaped photoelectric switch positioning control unit, a standard color card unit and a controller unit, wherein the stepping motor rotating unit, the U-groove-shaped photoelectric switch positioning control unit, the standard color card unit and the controller unit are arranged in the machine shell, and the controller unit is electrically connected with the stepping motor rotating unit and the U-groove-shaped photoelectric switch positioning control unit; the stepping motor rotating unit comprises a stepping motor and a standard color lump mounting base plate which are connected with each other, and the standard color lump unit is arranged in a mounting hole of the standard color lump mounting base plate.
2. The calibration device of claim 1, wherein the U-slot type optoelectronic switch positioning control unit comprises two opposed optoelectronic switches of EE-SX672-WR, and the opposed optoelectronic switches are disposed on one side of the standard color block mounting base plate.
3. The calibration device of claim 1, wherein the stepper motor rotation unit further comprises a power driving circuit, and the power driving circuit is connected to the controller unit and the stepper motor.
4. The calibration device of claim 1, wherein the standard color block mounting plate is a black cylindrical plastic plate, and 15 standard color block mounting holes are uniformly distributed along a circular plane of the standard color block mounting plate, and each standard color block mounting hole has an axial included angle of 24 °.
5. The calibration device of claim 4, wherein the bottom of the standard color block mounting base plate is provided with a circular plane, and a "U" shaped groove is formed in the axial tangential direction of each standard color block mounting hole.
6. The calibration device of the percutaneous jaundice tester of claim 1, wherein the standard color card unit comprises standard color blocks and a white back plate, the standard color blocks are fifteen standard color blocks with values of 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35 and 40, and the standard color blocks are made of ceramic; the standard color block and the white back plate are both circular, and the diameter of the standard color block and the diameter of the white back plate are larger than the diameter of a probe of the percutaneous jaundice tester; the 0 value standard color block is a blank standard color block, and the other standard color blocks are pure yellow standard color blocks with different shades.
7. The calibration device of the percutaneous jaundice tester of claim 1, wherein the housing comprises an upper cover and a lower base plate which are connected through screws, and the stepping motor rotating unit, the U-groove-shaped photoelectric switch positioning control unit and the controller unit are mounted on the lower base plate; the upper cover is provided with a detection hole of a percutaneous jaundice tester probe to be tested and a touch screen, the touch screen is provided with a key and a real-time color block value display interface, and the key comprises a reset button and + and-buttons.
8. The calibration device of claim 1, wherein the stepping motor is connected to the standard color lump mounting plate via a rotation shaft, and the rotation shaft of the stepping motor is fixed in the rotation shaft mounting hole of the standard color lump mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151172.3U CN211066547U (en) | 2019-07-22 | 2019-07-22 | Calibration device for percutaneous jaundice tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151172.3U CN211066547U (en) | 2019-07-22 | 2019-07-22 | Calibration device for percutaneous jaundice tester |
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| CN211066547U true CN211066547U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921151172.3U Active CN211066547U (en) | 2019-07-22 | 2019-07-22 | Calibration device for percutaneous jaundice tester |
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- 2019-07-22 CN CN201921151172.3U patent/CN211066547U/en active Active
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