Pediatric clinical intelligent blood oxygen monitoring device and method

Abstract

The invention relates to the technical field of pediatric clinical monitoring, and discloses a pediatric clinical intelligent blood oxygen monitoring device and method. According to the pediatric clinical intelligent blood oxygen monitoring device, an oximeter serves as a main body, a first detection assembly which is in up-down correlation and a second detection assembly which is in left-right correlation are arranged in a finger containing channel, and automatic correction of fingers is achieved in cooperation with an offset alignment assembly. The deviation alignment assembly is composed of a friction position adjusting column, a chain wheel chain belt, a motor and a control assembly, under the cooperative feedback of the pressure sensor and the blood oxygen signal, the friction position adjusting column is driven to rotate so as to guide the finger to return to the light path alignment position, and linkage control over deviation prevention correction and stable blood oxygen monitoring is achieved. Through cooperative linkage of the anti-deviation assembly and the double-detection assembly, automatic correction and stable alignment of finger positions are achieved, and accuracy and stability of pediatric blood oxygen monitoring are improved; meanwhile, intelligent control of pressure and blood oxygen signals is combined, different finger states are adapted, and errors and repeated operation are reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pediatric clinical monitoring, and particularly relates to a pediatric clinical intelligent blood oxygen monitoring device and method. BACKGROUND

[0002] Pediatric clinical medicine is a direct medical practice focusing on children (usually referring to 0-18 years old, including newborns, infants, school-age children and adolescents), and its core is to apply pediatric medical theory and treatment technology to the diagnosis, treatment, nursing, rehabilitation and health management of children patients. It is different from basic medical research (such as laboratory research) or adult clinical medicine, and its core feature revolves around the physiological, psychological and pathological particularity of children.

[0003] In the process of pediatric clinical diagnosis and monitoring, an intelligent diagnosis and monitoring device is needed, and a blood oxygen meter is one of the intelligent diagnosis and monitoring devices. The existing blood oxygen meter is clamped on the finger of a child during use, so that the emitter of the blood oxygen meter corresponds to the position of the finger pulp, and diagnosis and monitoring are performed. However, due to the large difference in finger size of children of different ages, especially small infants, the matching degree of the finger pulp and the existing blood oxygen meter groove is poor, and the child does not cooperate, so that the blood oxygen monitoring probe and the finger pulp are not attached, resulting in difficulty or inaccuracy in monitoring. When continuous monitoring is required, the blood oxygen meter is more likely to move along the direction of the finger relative to the finger, the position of the child's finger pulp deviates from the emitter, and the monitoring effect is affected. SUMMARY

[0004] In view of the above problems, the present application provides a pediatric clinical intelligent blood oxygen monitoring device and method to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: A pediatric clinical intelligent blood oxygen monitoring device, comprising a blood oxygen meter, a finger containing channel is formed on the inner side of the blood oxygen meter, a first detection assembly is arranged in the finger containing channel, an offset alignment assembly is arranged in the blood oxygen meter, and the offset alignment assembly can prevent the position of the finger from deviating from the first detection assembly; the offset alignment assembly comprises a groove, a friction positioning column and a driving assembly; two grooves are respectively recessed on the inner bottom wall and the inner top wall of the blood oxygen meter, and the two grooves are formed by surrounding the finger containing channel, the first detection assembly comprises a first emitter and a first receiver, the first emitter and the first receiver are arranged on the inner wall of the upper groove and the inner wall of the lower groove respectively, and the friction positioning column is arranged in at least one groove; when the finger deviates from the first emitter, the driving assembly is used to drive the friction positioning column to rotate to move and correct the position of the finger.

[0006] Furthermore, a second detection component is also provided inside the finger receiving channel of the pulse oximeter. The second detection component includes a second transmitter and a second receiver, which are respectively disposed on the left and right side walls of the finger receiving channel of the pulse oximeter. The driving component includes a sprocket, a chain, a motor, and a control component. The sprocket is fixedly sleeved on one end of the friction adjustment post, and multiple sprockets are connected by the chain. The motor is installed in the corresponding groove, and the output shaft of the motor is connected to one end of one of the friction adjustment posts. The control component can drive the motor to start or stop.

[0007] Furthermore, the control component includes a first sensor, a pressure plate, and a controller; the first sensor is disposed on one inner wall of the pulse oximeter, the pressure plate is connected to one end of the first sensor, and the controller is disposed at the bottom of the pulse oximeter, and the controller can cooperate with the first sensor to control the motor.

[0008] Furthermore, the friction adjustment posts are arranged in two rows, and each of the two grooves is recessed with a sliding groove. The two rows of friction adjustment posts are equidistantly arranged in the two sliding grooves. There are two drive components, which are respectively installed in the two sliding grooves. A housing is slidably installed in the upper sliding groove. The friction adjustment post located on the upper side is rotatably installed in the housing. The sprocket located on the upper side is fixedly sleeved on one end of the friction adjustment post on the upper side. The friction adjustment post is specifically a columnar component with a rubber ring fixedly sleeved on the outside. The rubber ring is made of medical rubber. Multiple sprockets on the upper side are connected by a chain belt. The motor on the upper side is fixedly installed on one side of the housing. The output shaft of the motor on the upper side is connected to one end of one of the friction adjustment posts on the upper side. The housing is provided with an adjustment component that can adjust its height.

[0009] Furthermore, the adjustment assembly includes a connecting rod, a top plate, and a lifting assembly; the connecting rod is fixedly installed on the top of the housing, the top plate is fixedly installed on the top of the connecting rod, and the lifting assembly is disposed on the pulse oximeter for moving the top plate and the connecting rod in the vertical direction.

[0010] Furthermore, the lifting assembly includes a horizontal plate, a second sensor, and a lead screw; the horizontal plate is sleeved on the outside of the connecting rod, the second sensor is disposed at the bottom of the horizontal plate, one end of the second sensor is in contact with the housing, sliders are fixedly installed on both sides of the housing, a groove corresponding to the slider is opened on the inner wall of the upper sliding groove, the slider is located in the groove, the horizontal plate is threaded on the outside of the lead screw, the lead screw is rotatably installed inside the groove, when the housing does not extend outside the groove, the horizontal plate and the top plate are in contact with the top wall of the groove; the first sensor and the second sensor are both pressure sensors.

[0011] This invention also provides a pediatric clinical intelligent blood oxygen monitoring method, applied to the pediatric clinical intelligent blood oxygen monitoring device described above, comprising the following steps: Step S1: Power on the blood oxygen monitoring device. After powering on, the controller sends an initialization signal to the first transmitter, the first receiver and the pressure sensor in the first detection component, and establishes a transmission channel between the blood oxygen signal and the pressure signal to obtain the real-time pressure value and blood oxygen detection signal when the finger is inserted. Step S2: Based on the real-time pressure value collected by the pressure sensor, compare it with the preset effective pressure range. When the real-time pressure value is within the preset pressure range, determine that the finger is in a correctable state and generate an anti-deviation control trigger signal. Step S3: In response to the anti-deviation control trigger signal, the controller starts the drive component control based on the deviation of the real-time pressure value from the target pressure reference to obtain the drive control command; Step S4: Based on the changing trend of the real-time pressure value and the fluctuation of the pulse wave amplitude of the blood oxygen detection signal, the friction adjustment column is dynamically adjusted using the drive control command. When the real-time pressure value is detected to be stable within the preset pressure range, the drive component is controlled to stop rotating and the friction adjustment column is maintained in the current posture to complete the anti-deviation correction and enter the stable blood oxygen monitoring state.

[0012] The technical effects and advantages of this invention are as follows: 1. This invention, through the cooperation of the friction adjustment column and the drive assembly, enables the position of the pulse oximeter to be adjusted when the fingertip deviates from the position of the transmitter, ensuring that the fingertip and the transmitter are in the same position, thereby ensuring the accuracy of the diagnostic monitoring results; 2. The present invention can adjust the position of the upper friction adjustment column by setting the adjustment component, so that when used by children with slender fingers, the friction adjustment column can be in contact with the fingers, so that the friction adjustment column can drive the pulse oximeter to adjust its position by relying on the friction between the friction column and the fingers. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of the pediatric clinical intelligent blood oxygen monitoring device according to an embodiment of the present invention is shown; Figure 2 A cross-sectional structural schematic diagram of the pediatric clinical intelligent blood oxygen monitoring device according to an embodiment of the present invention is shown; Figure 3 An embodiment of the present invention is shown. Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 A schematic diagram of a portion of the structure of an embodiment of the present invention is shown. Figure 1 ; Figure 5 A schematic diagram of a portion of the structure of an embodiment of the present invention is shown. Figure 2 ; Figure 6 A schematic diagram of a portion of the structure of an embodiment of the present invention is shown. Figure 3 ; In the diagram: 1. Pulse oximeter; 2. Friction adjustment column; 3. Sprocket; 4. Chain belt; 5. Motor; 6. First sensor; 7. Pressure plate; 8. First transmitter; 9. First receiver; 10. Controller; 11. Housing; 12. Connecting rod; 13. Top plate; 14. Horizontal plate; 15. Second sensor; 16. Lead screw; Figure 7 This is a flowchart illustrating the steps of a pediatric clinical intelligent blood oxygen monitoring method. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0015] This invention provides a pediatric clinical intelligent blood oxygen monitoring device and method, such as Figures 1 to 6As shown, the device includes a pulse oximeter 1, which is a finger-clip smart pulse oximeter. A finger-accommodating channel 101 is formed inside the pulse oximeter 1. A first detection component is disposed within the finger-accommodating channel 101. The first detection component includes a first transmitter 8 and a first receiver 9. The first transmitter 8 and the first receiver 9 are the corresponding first transmitter and first receiver on existing finger-clip smart pulse oximeters. An offset alignment component is provided inside the pulse oximeter 1 to prevent the finger from deviating from the position of the first transmitter 8 (i.e., the first detection component). The offset alignment component includes a groove, a friction adjustment post 2, and a drive component. The grooves are respectively formed on the bottom and top walls of the pulse oximeter 1. Specifically, two grooves are respectively formed on the inner bottom and inner top walls of the pulse oximeter 1, and the two grooves enclose the finger-accommodating channel 101. The first transmitter 8 and the first receiver 9 are respectively disposed on the inner walls of the upper and lower grooves. The friction adjustment post 2 is disposed in at least one of the grooves; when the finger deviates from the first transmitter 8, the drive assembly is used to drive the friction adjustment post 2 to rotate in order to move and correct the position of the finger.

[0016] When in use, the pulse oximeter 1 is worn on the child's finger, with the fingertip corresponding to the position of the first transmitter 8. Diagnostic monitoring is performed through the pulse oximeter 1. Due to the large number of patients, doctors cannot supervise multiple children at the same time. In addition, some parents are careless and cannot restrict the children's behavior, causing the pulse oximeter 1 to shift relative to the finger along the finger direction. The position of the child's finger deviates from that of the first transmitter 8, affecting the diagnostic monitoring effect. For example, the cross-section of the groove is arc-shaped.

[0017] Therefore, when the child's finger is disengaged from the position of the first transmitter 8, the drive component drives the friction adjustment column 2 to rotate clockwise. Since the friction adjustment column 2 is in contact with the finger, the rotation of the friction adjustment column 2 will move the pulse oximeter 1 by relying on the friction between the friction column 2 and the finger, so that the position of the first transmitter 8 on the pulse oximeter 1 is adjusted to correspond to the fingertip position, avoiding deviation and ensuring the accuracy of diagnostic monitoring results. When the adjustment is completed, the drive component stops the rotation of the friction adjustment column 2, thus completing the adjustment of the position of the pulse oximeter 1, ensuring that the position of the first transmitter 8 on the pulse oximeter 1 always corresponds to the fingertip position.

[0018] like Figures 2 to 6 As shown, the drive assembly includes a sprocket 3, a chain belt 4, a motor 5, and a control assembly. The sprocket 3 is fixedly sleeved on one end of the friction adjusting post 2. Multiple sprockets 3 are connected by the chain belt 4. The motor 5 is installed in the groove. The output shaft of the motor 5 is connected to one end of one of the friction adjusting posts 2. The control assembly can drive the motor 5 to start or stop.

[0019] When the fingertip deviates from the position of the first transmitter 8, the control component controls the motor 5 to start. The output shaft of the motor 5 rotates, causing the connected friction adjustment pin 2 to rotate, which in turn drives the other friction adjustment pins 2 to rotate in conjunction with the sprocket 3 and the chain belt 4.

[0020] For example, in one embodiment, the drive components are two sets, and are respectively disposed in the upper groove and the lower groove.

[0021] like Figure 2 As shown, the control assembly includes a first sensor 6, a pressure plate 7, and a controller 10. The first sensor 6 is fixedly installed on the inner wall of one side of the pulse oximeter 1. The pressure plate 7 is fixedly connected to one end of the first sensor 6 near the friction adjustment column 2. The controller 10 is located at the bottom of the pulse oximeter 1. The controller 10 can cooperate with the first sensor 6 to control the motor 5.

[0022] After placing the finger inside the pulse oximeter 1, the fingertip presses against the pressure plate 7, causing the first sensor 6 to be under pressure. Once the pressure reaches the set threshold, the display screen of the pulse oximeter 1 will show that placement is complete. At this point, the fingertip corresponds to the position of the first transmitter 8. During subsequent use, when the fingertip deviates from the first transmitter 8, the pressure of the finger on the first sensor 6 decreases. The first sensor 6, in conjunction with the controller 10, controls the output shaft of the motor 5 to rotate, causing the sprocket 3 and chain belt 4 to drive the friction adjustment column 2 to rotate forward. Relying on the friction between the finger and the pulse oximeter 1, the pulse oximeter 1 moves relative to the finger, causing the finger to come into contact with the pressure plate 7 and restoring the pressure on the first sensor 6. When the pressure reaches the set threshold, the controller 10 stops the motor 5, thus completing the adjustment of the position of the pulse oximeter 1. At this point, the fingertip once again corresponds to the position of the first transmitter 8.

[0023] like Figures 2 to 6 As shown, in one embodiment, the friction adjustment pins 2 are arranged in two rows, and each of the two grooves is recessed with a sliding groove 103. The two rows of friction adjustment pins 2 are respectively equidistantly arranged in the two sliding grooves 103 and partially exposed in the sliding grooves 103. There are two drive components, which are respectively installed in the two sliding grooves 103. A housing 11 is slidably installed in the upper sliding groove 103. The friction adjustment pins 2 located on the upper side are rotatably installed in the housing 11. The sprockets 3 located on the upper side are fixedly sleeved on one end of the upper friction adjustment pins 2. Multiple upper sprockets 3 are connected by a chain belt 4. The motor 5 on the upper side is fixedly installed on one side of the housing 11. The output shaft of the upper motor 5 is connected to one end of one of the upper friction adjustment pins 2. The housing 11 is provided with an adjustment component that can adjust its height.

[0024] The sprocket 3 located on the lower side is fixedly sleeved on one end of the friction adjustment post 2 on the lower side. Multiple sprockets 3 on the lower side are connected by a chain belt 4. The motor 5 on the lower side is fixedly installed on one end of the finger receiving channel 101. The output shaft of the motor 5 on the lower side is connected to one end of one of the friction adjustment posts 2 on the lower side. The housing 11 is provided with an adjustment component that can adjust its height.

[0025] For example, in one embodiment, there are at least two friction adjustment posts 2 in each row, and they are disposed on the inner wall of the sliding groove on the lower side. In another embodiment, multiple friction adjustment posts 2 in each row are equidistantly disposed in the sliding groove, and the drive assembly can drive the friction adjustment posts 2 to rotate when the finger deviates from the first transmitter 8, thereby causing the child's finger to move forward or backward.

[0026] Because some children's fingers are too thin, their fingers cannot contact the friction adjustment column 2 on the upper side after being placed inside the pulse oximeter 1. As a result, the friction adjustment column 2 cannot drive the pulse oximeter 1 to move by friction when it rotates, and the position cannot be adjusted. Therefore, by adjusting the height of the housing 11 by adjusting the components, the housing 11, along with the friction adjustment post 2, comes into contact with the upper surface of the finger, so that the friction adjustment post 2 can drive the pulse oximeter 1 to adjust its position by relying on the friction between it and the finger.

[0027] like Figures 2 to 4 As shown, the adjustment assembly includes a connecting rod 12, a top plate 13, and a lifting assembly; the connecting rod 12 is fixedly installed on the top of the housing 11, the top plate 13 is fixedly installed on the top of the connecting rod 12, and the lifting assembly is set on the pulse oximeter 1 to move the top plate 13 and the connecting rod 12 in the vertical direction. The lifting assembly includes a horizontal plate 14, a second sensor 15, and a lead screw 16. The horizontal plate 14 is slidably sleeved on the outside of the connecting rod 12. The second sensor 15 is fixedly installed at the bottom of the horizontal plate 14. One end of the second sensor 15 is in contact with the housing 11. The horizontal plate 14 is threaded on the outside of the lead screw 16. The lead screw 16 is rotatably installed inside the groove. The end of the lead screw 16 extends to the outside of the pulse oximeter 1.

[0028] The forward rotation of the lead screw 16 causes the horizontal plate 14, the second sensor 15, the connecting rod 12, the housing 11, and the friction adjustment column 2 to descend. After the friction adjustment column 2 contacts the upper surface of the finger, the horizontal plate 14 continues to descend, cooperating with the second sensor 15 to apply pressure to the housing 11. When the pressure reaches the set threshold of the second sensor 15, the display screen of the pulse oximeter 1 will indicate that the position adjustment of the upper friction adjustment column 2 is complete. Reversing the lead screw 16 will reset the upper side of the horizontal plate 14, and the horizontal plate 14 pulls the top plate 13, the connecting rod 12, the housing 11, and the friction adjustment column 2 to reset.

[0029] like Figure 3As shown, when the housing 11 does not extend outside the groove, the horizontal plate 14 and the top plate 13 are both in contact with the top wall of the groove.

[0030] This ensures that the second sensor 15 will not be subjected to pressure and will not function when used on fingers of normal thickness.

[0031] Both the first sensor 6 and the second sensor 15 are pressure sensors, and the set threshold for the first sensor 6 and the second sensor 15 is 0.5N.

[0032] The pressure setting ensures that the adjustment can be carried out normally without causing discomfort to the child's fingers. Multiple first sensors 6 and second sensors 15 can be set, such as at 30° and 90° angles of the device, for multi-point detection.

[0033] like Figure 2 As shown, the friction adjustment column 2 is specifically a columnar component with an externally fixed rubber ring, and the rubber ring is made of medical rubber.

[0034] The rubber ring increases the friction between the friction adjustment post 2 and the finger, preventing slippage, and also improves finger comfort when in contact with the finger.

[0035] In another embodiment, the friction adjustment post 2 located on the lower side adjacent to the first transmitter 8 is an elliptical cylinder (not shown in the figure), meaning its cross-section is elliptical. The elliptical cylinder is used to align with the knuckle (the joint between two finger segments) near the fingertip. The elliptical cylinder includes two opposing actuating tips, located at opposite ends of the major axis of the elliptical cylinder's cross-section. Because when the fingertip is aligned with the vicinity of the first transmitter 8, the knuckle near the fingertip is concave, creating a large gap with the lower side. If a conventional friction adjustment post 2 were used, a gap might form between it and the finger knuckle. However, this embodiment uses an elliptical cylinder. When the elliptical cylinder rotates, the actuating tips can rotate to support and actuate the finger knuckle, thus increasing friction, increasing the forward momentum of the moving finger, and improving driving efficiency. The major axis of the elliptical cylinder's cross-section is larger than the diameter of the friction adjustment post 2's cross-section. The minor axis of the cross-section of the elliptical cylinder is less than or equal to the diameter of the cross-section of the friction adjustment column 2. When the fingertip is aligned with the first transmitter 8, the elliptical cylinder rotates several times. At this time, the minor axis of the cross-section of the elliptical cylinder contacts the finger, without excessively squeezing the finger.

[0036] like Figure 4 As shown, sliders are fixedly installed on both sides of the housing 11, and a groove corresponding to the slider is opened on the inner wall of the upper sliding groove, with the slider located in the groove.

[0037] The slider and the groove allow the housing 11 to descend more smoothly, preventing the housing 11 and the friction adjustment column 2 from deflecting in the horizontal direction.

[0038] Working principle: When in use, the pulse oximeter 1 is worn on the child's finger, with the fingertip corresponding to the position of the first transmitter 8. Diagnostic monitoring is performed through the pulse oximeter 1. Due to the large number of patients, doctors cannot supervise multiple children at the same time. In addition, some parents are careless and cannot restrict the children's behavior, which causes the pulse oximeter 1 to shift along the finger direction. The position of the child's finger and the first transmitter 8 deviates, affecting the diagnostic monitoring effect. Therefore, after placing the finger inside the pulse oximeter 1, the fingertip presses against the pressure plate 7, causing the first sensor 6 to be under pressure. Once the pressure reaches the set threshold, the display screen of the pulse oximeter 1 will show that the placement is complete. At this time, the fingertip corresponds to the position of the first transmitter 8. In subsequent use, when the fingertip deviates from the first transmitter 8, the pressure of the finger on the first sensor 6 decreases. The first sensor 6, in conjunction with the controller 10, controls the output shaft of the motor 5 to rotate, which in turn drives the friction adjustment column 2 to rotate forward through the sprocket 3 and chain belt 4. The friction between the sensor 6 and the finger drives the pulse oximeter 1 to move relative to the finger, causing the finger to contact the pressure plate 7 and restoring the pressure on the first sensor 6. When the pressure reaches the set threshold, the controller 10 stops the motor 5, thus completing the adjustment of the position of the pulse oximeter 1. At this time, the fingertip corresponds to the position of the first transmitter 8 again. Because some children's fingers are too thin, their fingers cannot contact the friction adjustment column 2 on the upper side after being placed inside the pulse oximeter 1. As a result, the friction adjustment column 2 cannot drive the pulse oximeter 1 to move by friction when it rotates, and the position cannot be adjusted. Therefore, rotating the screw 16 forward causes the horizontal plate 14, the second sensor 15, the connecting rod 12, the housing 11, and the friction adjustment column 2 to descend. After the friction adjustment column 2 contacts the upper surface of the finger, the horizontal plate 14 continues to descend, cooperating with the second sensor 15 to apply pressure to the housing 11. When the pressure reaches the set threshold of the second sensor 15, the display screen of the pulse oximeter 1 will indicate that the position adjustment of the upper friction adjustment column 2 is complete, so that the friction adjustment column 2 can drive the pulse oximeter 1 to adjust its position by relying on the friction between it and the finger. Reversing the screw 16 will reset the upper side of the horizontal plate 14, and the horizontal plate 14 pulls the top plate 13, the connecting rod 12, the housing 11, and the friction adjustment column 2 to reset.

[0039] For example, in one embodiment, the groove sidewall can ensure that the lead screw 16 can rotate freely, but can restrict the lifting and lowering of the lead screw 16. The horizontal plate 14 cannot rotate freely due to the restriction of the inner sidewall of the pulse oximeter 1, so that the rotation of the lead screw 16 can drive the 14 to rise and fall.

[0040] In one embodiment, the line connecting the first transmitter 8 and the first receiver 9 is defined as a longitudinal line, and the line connecting the second transmitter and the second receiver is defined as a deflection line. The deflection line intersects the longitudinal line and together forms a longitudinal plane. The central axis of the finger receiving channel 101 is perpendicular to the longitudinal plane, and the angle between the deflection line and the longitudinal line is between 0 and 25 degrees. For example, the second transmitter is disposed on the left inner wall of the upper groove, and the second receiver is disposed on the right inner wall of the lower groove. Since a child's wrist may slightly rotate, causing the fingers to deflect at a certain angle, the second transmitter and the second receiver are configured to form a deflection optical path. This ensures effective light path penetration even when the fingers rotate slightly, thereby ensuring stable acquisition of the blood oxygen detection signal and reducing measurement errors caused by changes in finger posture.

[0041] In another embodiment, the pulse oximeter 1 further includes a third detection component, which comprises a third transmitter and a third receiver. The line connecting the third transmitter and the third receiver is also defined as a deflection line. The third transmitter is disposed on the right inner wall of the upper groove, and the third receiver is disposed on the left inner wall of the lower groove. The angle between the deflection line of the third transmitter and the third receiver and the longitudinal line is between 0 and 15 degrees. Under conditions of slight wrist rotation in children, due to natural habits and the limitation of wrist rotation angle, the fingers generally move clockwise. However, since the wrist bones of children are still growing, it is possible that the wrist will cause the fingers to move slightly counterclockwise. Furthermore, since the amplitude of counterclockwise wrist rotation is much greater than that of clockwise wrist rotation, the angle between the deflection line of the third transmitter and the third receiver and the longitudinal line is set slightly smaller than the angle between the deflection lines of the second transmitter and the second receiver and the longitudinal line. This can better reflect the actual finger rotation and identify such minor measurement errors to ensure stable acquisition of the pulse oximetry signal.

[0042] In another embodiment, the number of receivers and transmitters can be greater than three, depending on the requirements. For example, in one embodiment, the first receiver 9, the second receiver, and the third receiver are evenly arranged on the inner circumference of the finger receiving channel 101, and the first transmitter 8, the second transmitter, and the third transmitter are evenly arranged on the inner circumference of the finger receiving channel 101, and are respectively aligned with the first receiver 9, the second receiver, and the third receiver.

[0043] See Figure 7 A pediatric clinical intelligent blood oxygen monitoring method, applied to the pediatric clinical blood oxygen monitoring device described above, the method comprising the following steps: Step S1: Power on the blood oxygen monitoring device. After powering on, the controller 10 sends an initialization signal to the first transmitter 8, the first receiver 9 and the pressure sensor 6 in the first detection component, and establishes a transmission channel between the blood oxygen signal and the pressure signal to obtain the real-time pressure value and blood oxygen detection signal when the finger is inserted. In one embodiment, a power-on start-up operation is performed on the blood oxygen monitoring device. Specifically, the power management module supplies power to the blood oxygen monitoring device. After the power supply stabilizes, the controller 10 (which may be an embedded microprocessor or a microcontroller) sends initialization signals to the optical transmitter, optical receiver, and integrated pressure sensor of the blood oxygen meter.

[0044] The initialization signal is used to wake up each functional module and put it into a preset working mode. For example, the first transmitter 8 turns on the working current output of the red light and infrared light sources, the first receiver 9 starts the photoelectric signal acquisition function, and the pressure sensor 6 enters the real-time pressure measurement state.

[0045] Simultaneously, the controller 10 establishes transmission channels for blood oxygen and pressure signals according to the system configuration. In some embodiments, the transmission channels can be implemented in the following manner: Optical signal channel: The receiver converts the photoelectric detection signal into a voltage signal, which is then acquired by an analog-to-digital converter and transmitted to the controller; Pressure signal channel: The pressure sensor collects the real-time pressure when the finger is inserted, digitizes the pressure signal through the built-in ADC module, and sends it to the controller; Data bus: The controller 10 aggregates the blood oxygen signal and pressure signal and connects to the host computer or display unit through the internal bus or communication interface (such as I2C, SPI or UART) to realize synchronous data transmission.

[0046] While establishing the signal channel, the controller 10 can perform preliminary detection of the finger placement status, such as using the pressure sensor 6 to determine whether the finger has been fully placed in the clamping area, ensuring that the collected blood oxygen signal and pressure signal are effective and stable.

[0047] It should be noted that, in order to ensure the stability of signal transmission, in some embodiments, the controller 10 will perform a self-test process, including checking whether the light source current of the first transmitter 8 reaches the set value, whether the output signal of the first receiver 9 is within the expected voltage range, and whether the value collected by the pressure sensor 6 meets the placement state standard. If the self-test fails, the module can be re-initialized or the user can be prompted to adjust the finger position.

[0048] Step S2: Based on the real-time pressure value collected by the pressure sensor, compare it with the preset effective pressure range. When the real-time pressure value is within the preset pressure range, determine that the finger is in a correctable state and generate an anti-deviation control trigger signal. In one embodiment, the controller 10 continuously acquires the real-time finger pressure value obtained by the pressure sensor 6 and compares the pressure value with a preset effective pressure range. The effective pressure range can be preset according to different finger sizes and blood oxygen sensor characteristics, for example, set to a pressure range of 5 to 15 kPa per square centimeter.

[0049] When the real-time pressure value collected by pressure sensor 6 is within the preset effective pressure range, controller 10 determines that the finger is in a calibrable state, meaning that both the blood oxygen signal and the pressure signal are within the usable range, ensuring the accuracy of subsequent blood oxygen detection. At this time, controller 10 generates an anti-deviation control trigger signal to trigger the subsequent blood oxygen correction and signal processing modules.

[0050] In some embodiments, to avoid misjudgment caused by short-term pressure fluctuations, the pressure value can be filtered over time, for example, by using a moving average method or an exponential smoothing method to smooth the continuously sampled pressure values ​​before comparing them with a preset pressure range.

[0051] If the real-time pressure value is lower than the preset range, the controller 10 will determine that the finger is not inserted enough and will prompt the user to adjust the finger position through an indicator light or sound; if the pressure value is higher than the preset range, it will determine that the finger is too tight and may cause blood flow compression. The controller 10 will also issue an adjustment prompt and pause the output of the anti-deviation control trigger signal.

[0052] It should be noted that in some embodiments, the anti-deviation control trigger signal is not only used to initiate the blood oxygen correction process, but also to trigger the dynamic pressure feedback module, which can ensure that the blood oxygen detection signal is collected within the optimal pressure range by fine-tuning the clamping force or prompting the user to fine-tune the finger position.

[0053] Step S3: In response to the anti-deviation control trigger signal, the controller 10 starts the drive component control according to the deviation of the real-time pressure value from the target pressure reference, so as to obtain the drive control command; In one embodiment, after the anti-deviation control trigger signal is generated in step S2, the controller 10 immediately responds to the signal and reads the real-time pressure value collected by the pressure sensor 6 while the finger is in place. The controller 10 compares the real-time pressure value with a preset target pressure reference and calculates the pressure deviation between the two. For example, the target pressure reference can be set to 10 kPa per square centimeter.

[0054] The controller 10 determines the activation mode and action range of the drive component based on the pressure deviation. If the real-time pressure value is lower than the target pressure reference, the drive control command generated by the controller 10 can trigger the clamping mechanism or fine-tuning actuator to slightly increase the pressure applied to the finger so that the pressure approaches the target value; if the real-time pressure value is higher than the target pressure reference, the drive control command generated by the controller 10 can trigger the clamping mechanism or fine-tuning actuator to slightly decrease the pressure to avoid excessive pressure on the finger, which could lead to abnormal blood oxygenation signals.

[0055] In some embodiments, to avoid control overshoot, the controller 10 may employ a proportional control or stepped control strategy, that is, adjusting the amplitude of the drive component's movement according to the magnitude of the deviation; a small deviation results in a small drive amplitude, while a large deviation results in an appropriately increased drive amplitude. Simultaneously, the controller 10 may set a minimum movement step, such as 0.05 mm, to ensure fine-tuning accuracy.

[0056] The controller 10 sends the generated drive control commands to the drive components in real time, including the clamping mechanism, the micro-eccentric adjustment device, or the adjustable elastic support unit. During the execution of the drive components, the pressure sensor 6 continues to collect real-time pressure values, forming a closed-loop feedback to achieve continuous pressure regulation until the pressure value stabilizes near the target pressure reference.

[0057] It is important to note that in some embodiments, the drive control commands not only indicate the amplitude of the movement, but also the direction and rate of movement. For example, the clamping mechanism can be set to slowly apply or release pressure to avoid sudden movements that could cause finger movement or fluctuations in blood oxygenation signals.

[0058] Step S4: Based on the real-time pressure value change trend and the pulse wave amplitude fluctuation of the blood oxygen detection signal, the friction adjustment column 2 is dynamically adjusted using drive control commands. When the real-time pressure value is detected to be stable within the preset pressure range, the drive component is controlled to stop rotating and the friction adjustment column 2 is maintained in the current posture to complete the anti-deviation correction and enter the stable blood oxygen monitoring state.

[0059] In one embodiment, after generating the aforementioned drive control command, the system enters a joint adjustment phase based on the real-time pressure value change trend and the stability of the blood oxygen detection signal. At this time, the controller 10 continuously receives the real-time pressure value sequence output by the pressure sensor 6 and simultaneously collects the pulse wave amplitude change in the blood oxygen detection signal as a dual criterion for deviation correction.

[0060] Specifically, the controller 10 first analyzes the trend of real-time pressure values ​​within a continuous time window to determine whether there is a tendency for loosening, bias, or gradual slippage in the contact between the finger and the probe. For example, if the real-time pressure value is detected to be slowly decreasing or fluctuating periodically in a short period of time, it can be determined that there is a slight risk of finger displacement. At the same time, the controller 10 synchronously analyzes the pulse wave amplitude in the blood oxygen detection signal. When the pulse wave amplitude shows irregular attenuation, abrupt changes, or unstable amplitude, it can further confirm that the current contact state has an adverse effect on blood oxygen signal acquisition.

[0061] When dynamic calibration is deemed necessary, the controller 10, based on the aforementioned pressure change trend and pulse wave amplitude fluctuations, invokes the generated drive control command to make minor dynamic adjustments to the friction adjustment column 2. The adjustment direction of the friction adjustment column 2 is used to correct the direction of force on the finger, and the adjustment amplitude is used to compensate for uneven distribution of contact pressure, thereby ensuring a stable fit between the finger and the blood oxygen monitoring device. During this process, the rotation of the friction adjustment column 2 is performed at small angles and low speeds to avoid new misalignment or discomfort caused by rapid movements.

[0062] In some embodiments, after each fine-tuning of the friction adjustment column 2, the system enters a brief stable observation phase to re-acquire real-time pressure values ​​and pulse wave amplitude changes to determine whether the current adjustment is effective. When the real-time pressure value is detected to remain continuously within the preset pressure range, and the pulse wave amplitude of the blood oxygen detection signal tends to be stable and the cycle is consistent, the controller 10 determines that the anti-deviation correction has been completed.

[0063] After completing the calibration determination, the controller 10 sends a stop rotation command to the drive assembly, causing the friction adjustment column 2 to remain in its current posture and no longer adjust, and locking this posture as a stable monitoring posture. In this posture, the drive assembly enters a holding state, maintaining only the necessary structural support force and no longer applying additional dynamic adjustments to the finger.

[0064] It is important to note that even after entering a stable blood oxygen monitoring state, the system can still periodically monitor real-time pressure and pulse amplitude changes. If an abnormal pressure trend or significant fluctuation in pulse amplitude is detected again during subsequent monitoring, the system can re-trigger the anti-deviation correction process to ensure the continuous stability of the blood oxygen monitoring process.

[0065] Preferably, in step S3, the controller controls the start of the drive component based on the deviation of the real-time pressure value from the target pressure reference. Specifically, this includes: driving the friction adjustment column 2, which is linked to the sprocket 3, to rotate around its axis to guide and correct the finger position, so that the finger moves toward the optical path alignment direction of the first transmitter 8 and the first receiver 9, and simultaneously activating the second transmitter and the second receiver in the second detection component to calibrate the blood oxygen detection signal by acquiring the deflection blood oxygen detection signal.

[0066] In one embodiment, after the anti-deviation control trigger signal is generated in step S2, the controller enters the drive component start-up control stage based on pressure deviation. At this time, the controller 10 continuously receives the real-time pressure value collected by the pressure sensor 6 and compares the real-time pressure value with the target pressure benchmark preset in the system to determine the current contact state between the finger and the blood oxygen monitoring device.

[0067] Specifically, when the detected real-time pressure value is higher than the target pressure reference, the controller 10 determines that the pressure of the finger on the probe is too great, which may lead to excessive local pressure or restricted blood flow; when the detected real-time pressure value is lower than the target pressure reference, the controller 10 determines that there is insufficient contact or unstable contact between the finger and the probe. Based on the above judgment results, the controller 10 generates drive control logic corresponding to the direction of pressure deviation.

[0068] After generating the drive control logic, the controller 10 sends a start command to the drive assembly, causing the drive assembly to enter the working state. Through its linkage with the sprocket 3 mechanism, the drive assembly drives the friction adjusting pin 2, connected to the sprocket 3, to rotate around its own axis. The direction of rotation of the friction adjusting pin 2 is determined by the direction of the pressure deviation. When the pressure is too high, the friction adjusting pin 2 rotates in the direction of reducing pressure; when the pressure is too low, the friction adjusting pin 2 rotates in the direction of enhancing contact.

[0069] During the rotation of the friction adjustment post 2, its structural position guides the finger, allowing it to move slightly along a predetermined guide trajectory without significant lifting or detachment. This guide trajectory is based on the optical path alignment direction between the first transmitter 8 and the first receiver 9, causing the finger to gradually move towards the center of the optical path, thus ensuring that the emitted light can stably pass through the finger and be accurately received by the first receiver 9.

[0070] In some embodiments, the rotation of the friction adjustment column 2 is controlled in a segmented manner, meaning that the angle and duration of each rotation are limited to avoid excessive finger position displacement or discomfort caused by excessive adjustment at once. After each segment of rotation is completed, the controller 10 rereads the real-time pressure value and determines whether the current pressure state is close to the target pressure reference to decide whether to continue driving the friction adjustment column 2 for the next adjustment.

[0071] It is important to note that during the rotation of the friction adjustment column 2 and the correction of the finger position, the system maintains real-time acquisition of the blood oxygen detection signal. When the pulse waveform of the blood oxygen signal shows significant improvement or tends to stabilize, the controller 10 can reduce the rotation speed of the friction adjustment column 2 or pause the drive to achieve more precise alignment control.

[0072] In another embodiment, since the finger position is offset from the first receiver 8 and the first receiver 9, the second transmitter and the second receiver in the second detection component are simultaneously activated. Since the positions of the second transmitter and the second receiver are different from those of the first transmitter 8 and the first receiver 9, the signal offset of the blood oxygen detection signal may occur due to the inaccurate finger position. In this case, the deflected blood oxygen detection signal collected by the second transmitter and the second receiver can be used to correct the original blood oxygen detection signal, that is, the blood oxygen detection signal collected by the first transmitter 8 and the first receiver 9, thereby eliminating the abnormal influence of signal acquisition.

[0073] Preferably, in step S4, dynamically adjusting the friction adjustment column based on the real-time pressure value change trend and the pulse wave amplitude fluctuation of the blood oxygen detection signal using drive control commands includes: Based on the real-time pressure value change trend and the pulse wave amplitude fluctuation of the blood oxygen detection signal, the corresponding rotation mode is selected from multiple preset rotation levels. The rotation mode includes low-level rotation mode and high-level rotation mode. The low-level rotation mode corresponds to a single micro-rotation of the friction adjustment column, and the high-level rotation mode corresponds to multiple superimposed rotations or short-term continuous rotations of the friction adjustment column 2. The friction adjustment column 2 is dynamically adjusted using drive control commands based on the corresponding rotation mode.

[0074] In one embodiment, when executing step S4, the controller 10 does not simply adjust the friction adjustment column based on the instantaneous magnitude of the real-time pressure value, but simultaneously introduces the changing trend of the real-time pressure value and the fluctuation of the pulse wave amplitude in the blood oxygen detection signal to construct a comprehensive criterion for judging the adjustment intensity of the friction adjustment column 2, thereby selecting the most suitable rotation mode from multiple preset rotation levels.

[0075] Specifically, the controller 10 first continuously samples the real-time pressure value and, based on the direction and amplitude of pressure changes between adjacent sampling times, determines whether the current pressure change trend is stabilizing, slowly deviating, or rapidly deviating from the target pressure range. Simultaneously, the controller 10 synchronously analyzes the pulse wave amplitude in the blood oxygen detection signal to determine whether there is amplitude attenuation, irregular period, or increased short-term fluctuations in the pulse wave, reflecting the degree to which the current finger contact status affects the quality of blood oxygen detection.

[0076] When the pressure change trend shows small fluctuations and the pulse wave amplitude is generally stable with only slight jitter, the controller 10 selects a low-level rotation mode from a set of preset rotation levels. In this mode, the drive control command only triggers the friction adjustment column 2 to perform a single micro-rotation. The angle of this micro-rotation is small and the duration is short, mainly used for fine-tuning the finger position. After this single micro-rotation is completed, the controller 10 immediately re-acquires the pressure value and pulse wave signal, and decides whether to trigger the rotation again based on the latest detection results, thus forming a closed-loop adjustment process of "detection-fine-tuning-re-detection".

[0077] When the pressure change trend shows a continuous deviation from the target pressure range, or when the pulse amplitude shows a significant decrease or unstable fluctuation within a short period of time, the controller 10 determines that the current finger deviation is too large and that a single micro-rotation is insufficient to quickly restore a stable state. In this case, a higher-level rotation mode is selected from the rotation levels. In the higher-level rotation mode, the drive control command controls the friction adjustment column 2 to perform multiple superimposed rotations or short-term continuous rotations.

[0078] Multiple superimposed rotations refer to the controller 10 continuously triggering multiple single micro-rotations within an adjustment cycle according to a preset rotation rhythm, with a very short interval between each rotation to quickly assess the pressure change response. This allows multiple small-angle rotations to accumulate displacement, gradually guiding the finger towards the alignment direction of the optical path. Short-time continuous rotation refers to controlling the friction adjustment column 2 to rotate continuously at a limited speed within a specified time window, allowing the friction adjustment column 2 to complete a continuous angular displacement in a short time to cope with situations where the finger deviates significantly or moves rapidly.

[0079] During the execution of the high-level rotation mode, the controller 10 continuously monitors the real-time pressure value change trend and the instantaneous response of the pulse wave amplitude. Once it detects that the pressure value has re-entered the preset pressure range and the pulse wave amplitude has returned to a stable state, it terminates multiple superimposed rotations or short-term continuous rotations in advance and automatically switches back to the low-level rotation mode or stops rotation to prevent over-correction.

[0080] It is important to note that the switching between different rotation modes is not triggered by a fixed threshold, but rather allows for dynamic adjustment within a certain buffer zone to avoid system oscillation caused by frequent switching of rotation modes. Through this method, the system can adaptively select low-level or high-level rotation modes based on real-time pressure changes and the quality of the blood oxygen pulse wave, achieving a balance between the gradual adjustment and stability of the friction adjustment column 2. This ensures wearing comfort while improving the signal stability and reliability during blood oxygen monitoring.

[0081] Preferably, dynamically adjusting the friction adjustment column 2 according to the high-level rotation mode using drive control commands includes: The rotation of the friction adjustment column 2 is divided into multiple rotation units, and each rotation unit corresponds to a rotation action with a preset amplitude or preset duration. In the same rotation direction, multiple rotation units are triggered sequentially according to a preset number of rotation units, so that multiple rotation units are executed continuously in the same direction to form a superimposed rotation effect of friction adjustment column 2; A pause interval is set between adjacent rotating units, and the pulse wave amplitude of the real-time pressure value and blood oxygen detection signal is collected within each pause interval; If the preset number of rotation units is not reached, the next rotation unit is triggered; if the preset number of rotation units is reached, or if a decrease in pressure change or pulse wave amplitude fluctuation is detected, the current superimposed rotation stops.

[0082] In one embodiment, when the controller 10 determines that a higher-level rotation mode is needed to adjust the friction adjustment column, it first breaks down the overall rotation process of the friction adjustment column in the same adjustment direction into several independent and controllable rotation units. Each rotation unit corresponds to one controlled rotation action, which can be a short-range rotation at a fixed angle or a continuous rotation within a fixed duration, to ensure that the guiding effect of each rotation on the finger position is predictable and assessable.

[0083] In actual execution, the controller 10 pre-determines the number of rotation units to be triggered in this high-level rotation mode based on the degree of deviation of the real-time pressure value from the target pressure range. For example, when a continuous deviation in pressure is detected and the blood oxygen pulse wave amplitude is significantly unstable, it can be set to trigger multiple rotation units continuously to form a gradually accumulating guiding effect.

[0084] Subsequently, the controller 10 sequentially triggers each rotation unit in the same rotation direction, causing the friction adjustment column 2 to continuously perform multiple rotation actions in a predetermined direction. Since the rotation direction of each rotation unit is consistent, the multiple rotation units are continuously superimposed in time, and their combined effect is equivalent to a larger amplitude rotation, thereby enabling a significant correction of the finger position in a short time and achieving a rapid response to deviations.

[0085] Between two adjacent rotation units, the controller 10 inserts a brief pause. During this pause, the system suspends the rotation of the friction adjustment column 2 and re-acquires the current real-time pressure value and the pulse wave amplitude change in the blood oxygen detection signal. In this way, the controller 10 can promptly evaluate the rotation effect after each rotation unit execution and determine whether the current rotation has effectively improved the finger position.

[0086] If the real-time pressure value is still significantly deviated during the pause interval and the pulse wave amplitude fluctuation does not show a weakening trend, the controller 10 determines that the expected correction effect has not been achieved. Without exceeding the preset number of rotation units, the controller continues to trigger the next rotation unit, so that the friction adjustment column 2 keeps in the same direction to perform subsequent superimposed rotations.

[0087] Conversely, if the pressure change amplitude begins to decrease or the pulse wave amplitude fluctuation becomes significantly stable within a certain pause interval, the controller 10 will terminate the current superimposed rotation process in advance and stop the friction adjustment column 2 from rotating, even if all the preset rotation unit counts have not been triggered, in order to avoid over-guidance or reverse deviation.

[0088] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A pediatric clinical intelligent blood oxygen monitoring device, characterized in that, The device includes a pulse oximeter (1), which has a finger receiving channel (101) formed inside. A first detection component is provided inside the finger receiving channel (101). An offset alignment component is provided inside the pulse oximeter (1). The offset alignment component includes a groove, a friction adjustment post (2), and a drive component. Two grooves are respectively recessed on the inner bottom wall and the inner top wall of the pulse oximeter (1), and the two grooves enclose the finger receiving channel (101). The first detection component includes a first transmitter (8) and a first receiver (9). The first transmitter (8) and the first receiver (9) are respectively disposed on the inner wall of the upper groove and the inner wall of the lower groove. The friction adjustment post (2) is disposed in at least one of the grooves. When the finger deviates from the first transmitter (8), the drive component is used to drive the friction adjustment post (2) to rotate in order to move and correct the position of the finger.

2. The pediatric clinical intelligent blood oxygen monitoring device according to claim 1, characterized in that: The pulse oximeter (1) is further provided with a second detection component on the inner side of the finger receiving channel (101). The second detection component includes a second transmitter and a second receiver. The second transmitter and the second receiver are respectively disposed on the left side wall and the right side wall of the finger receiving channel 101. The drive component includes a sprocket (3), a chain belt (4), a motor (5) and a control component. The sprocket (3) is fixedly sleeved on one end of the friction adjustment post (2). Multiple sprockets (3) are connected to each other through the chain belt (4). The motor (5) is installed in the corresponding groove. The output shaft of the motor (5) is connected to one end of one of the friction adjustment posts (2). The control component can drive the motor (5) to start or stop.

3. The pediatric clinical intelligent blood oxygen monitoring device according to claim 2, characterized in that: The control component includes a first sensor (6), a pressure plate (7), and a controller (10); the first sensor (6) is disposed on the inner wall of one side of the pulse oximeter (1), the pressure plate (7) is connected to one end of the first sensor (6), and the controller (10) is disposed at the bottom of the pulse oximeter (1). The controller (10) can cooperate with the first sensor (6) to control the motor (5).

4. The pediatric clinical intelligent blood oxygen monitoring device according to claim 3, characterized in that: The friction adjustment column (2) is provided in two rows. Each of the two grooves is recessed with a sliding groove (103). The two rows of friction adjustment columns (2) are respectively equidistantly arranged in the two sliding grooves (103). A housing (11) is slidably installed in the upper sliding groove (103). There are two drive components, which are respectively installed in the two sliding grooves (103). The friction adjustment column (2) located on the upper side is rotatably installed in the housing (11). The sprocket (3) located on the upper side is fixedly sleeved on one end of the upper friction adjustment column (2). The friction adjustment column (2) is a columnar component with a rubber ring fixedly sleeved on the outside. The housing (11) is provided with an adjustment component that can adjust its height.

5. The pediatric clinical intelligent blood oxygen monitoring device according to claim 4, characterized in that: The adjustment assembly includes a connecting rod (12), a top plate (13), and a lifting assembly; the connecting rod (12) is fixedly installed on the top of the housing (11), the top plate (13) is fixedly installed on the top of the connecting rod (12), and the lifting assembly is set on the pulse oximeter (1) for moving the top plate (13) and the connecting rod (12) in the vertical direction.

6. The pediatric clinical intelligent blood oxygen monitoring device according to claim 5, characterized in that: The lifting assembly includes a horizontal plate (14), a second sensor (15), and a lead screw (16). The horizontal plate (14) is sleeved on the outside of the connecting rod (12). The second sensor (15) is located at the bottom of the horizontal plate (14). One end of the second sensor (15) is in contact with the housing (11). Slider blocks are fixedly installed on both sides of the housing (11). The inner wall of the sliding groove on the upper side is provided with a groove corresponding to the slider. The slider is located in the groove. The horizontal plate (14) is threaded on the outside of the lead screw (16). The lead screw (16) is rotatably installed inside the groove. When the housing (11) does not extend outside the groove, the horizontal plate (14) and the top plate (13) are both in contact with the top wall of the groove. The first sensor (6) and the second sensor (15) are both pressure sensors.

7. A pediatric clinical intelligent blood oxygen monitoring method, characterized in that, The application of the pediatric clinical intelligent blood oxygen monitoring device as described in claim 6 includes the following steps: Step S1: Power on the blood oxygen monitoring device. After powering on, the controller (10) sends an initialization signal to the first transmitter (8), the first receiver (9) and the pressure sensor (6) in the first detection component, and establishes a transmission channel between the blood oxygen signal and the pressure signal to obtain the real-time pressure value and blood oxygen detection signal when the finger is inserted. Step S2: Based on the real-time pressure value collected by the pressure sensor, compare it with the preset effective pressure range. When the real-time pressure value is within the preset pressure range, determine that the finger is in a correctable state and generate an anti-deviation control trigger signal. Step S3: In response to the anti-deviation control trigger signal, the controller (10) performs drive component start control based on the deviation of the real-time pressure value from the target pressure reference to obtain drive control command; Step S4: Based on the changing trend of real-time pressure value and the fluctuation of pulse wave amplitude of blood oxygen detection signal, the friction adjustment column (2) is dynamically adjusted using drive control command. When the real-time pressure value is detected to be stable within the preset pressure range, the drive component is controlled to stop rotating and the friction adjustment column (2) is maintained in the current posture to complete the anti-deviation correction and enter the stable blood oxygen monitoring state.

8. The pediatric clinical intelligent blood oxygen monitoring method according to claim 7, characterized in that, Step S3, in which the controller initiates the drive component startup control based on the deviation of the real-time pressure value from the target pressure reference, includes: The friction adjustment column (2) driven by the sprocket (3) rotates around its axis to guide and correct the finger position, so that the finger moves toward the optical path alignment direction of the first transmitter (8) and the first receiver (9) and simultaneously starts the second transmitter and the second receiver in the second detection assembly to obtain the deflection blood oxygen detection signal to calibrate the blood oxygen detection signal.

9. The pediatric clinical intelligent blood oxygen monitoring method according to claim 7, characterized in that, Step S4, based on the real-time pressure value change trend and the pulse wave amplitude fluctuation of the blood oxygen detection signal, dynamically adjusts the friction adjustment column using drive control commands, including: Based on the real-time pressure value change trend and the pulse wave amplitude fluctuation of the blood oxygen detection signal, the corresponding rotation mode is selected from multiple preset rotation levels. The rotation mode includes low-level rotation mode and high-level rotation mode. The low-level rotation mode corresponds to a single micro-rotation of the friction adjustment column, and the high-level rotation mode corresponds to multiple superimposed rotations or short-term continuous rotations of the friction adjustment column (2). The friction adjustment column (2) is dynamically adjusted using drive control commands based on the corresponding rotation mode.

10. The pediatric clinical intelligent blood oxygen monitoring method according to claim 9, characterized in that, According to the high-level rotation mode, the friction adjustment column (2) is dynamically adjusted using drive control commands, including: The rotation of the friction adjustment column (2) is divided into multiple rotation units, and each rotation unit corresponds to a rotation action with a preset amplitude or preset duration. In the same rotation direction, multiple rotation units are triggered sequentially according to the preset number of rotation units, so that multiple rotation units are executed continuously in the same direction to form the superimposed rotation effect of the friction adjustment column (2); A pause interval is set between adjacent rotating units, and the pulse wave amplitude of the real-time pressure value and blood oxygen detection signal is collected within each pause interval; If the preset number of rotation units is not reached, the next rotation unit is triggered; if the preset number of rotation units is reached, or if a decrease in pressure change or pulse wave amplitude fluctuation is detected, the current superimposed rotation stops.

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