Drainage liquid real-time monitoring and early warning device based on near infrared spectrum technology

Abstract

The utility model relates to the technical field of medical instruments, and discloses a drainage liquid real-time monitoring and early warning device based on a near infrared spectrum technology, which comprises a shell used for being fixed on a drainage tube and adopting a telescopic structure; the light source emitting module is arranged on the shell and used for emitting near-infrared light to the drainage liquid in the drainage tube; the photoelectric detection module is arranged on the shell, is opposite to the light source emitting module and is used for detecting an optical signal of the near-infrared light after passing through the drainage liquid; the relative distance between the light source emitting module and the photoelectric detection module is adjusted through a telescopic structure; and the control module is electrically connected with the light source emission module and the photoelectric detection module, and is used for receiving the light signal and triggering an early warning signal when the light signal is abnormal. The device can monitor the concentration and quality of liquid components in drainage liquid in real time, automatically monitor the state of the drainage liquid and automatically give an early warning when the drainage liquid is abnormal, so that the problem of careless omission caused by manual monitoring is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology. Background Technology

[0002] After many surgical procedures, a drainage tube is usually left in place, with the other end connected to a drainage bag. This allows the patient's secretions and excretions to be drained. The drainage fluid can also be used to assess the patient's clinical condition, such as whether there are complications like bleeding or infection.

[0003] Currently, during postoperative observation, medical staff often assess the condition by manually observing the color, appearance, and nature of the drainage fluid periodically. This method is intuitive and direct, but it heavily relies on the experience and expertise of the medical staff. Furthermore, for some major surgeries, the drainage fluid in the drainage tube requires close monitoring. However, in some general wards, it is difficult to provide one-on-one 24-hour intensive care, which can easily lead to the failure to detect abnormal drainage fluid in a timely manner, increasing the risk of postoperative complications for patients. Utility Model Content

[0004] In view of this, the present invention provides a real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology to solve the problem that drainage fluid monitoring in the prior art relies on manual labor.

[0005] In a first aspect, this utility model provides a real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology, comprising:

[0006] The housing is used to fix the drainage tube, and the housing adopts a telescopic structure;

[0007] The light source emitting module, located on the housing, is used to emit near-infrared light into the drainage fluid in the drainage tube.

[0008] The photoelectric detection module, located on the housing and positioned opposite the light source emitting module, is used to detect the light signal after near-infrared light passes through the drainage fluid; the relative distance between the light source emitting module and the photoelectric detection module can be adjusted via a retractable structure.

[0009] The control module is electrically connected to the light source emitting module and the photoelectric detection module, respectively. It is used to receive light signals and to trigger an early warning signal when the light signal is abnormal.

[0010] The real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology provided in this invention places a light source emitting module and a photoelectric detection module on both sides of the drainage tube to emit near-infrared light. This allows for real-time detection of any abnormalities in the drainage fluid, automatic monitoring of the drainage fluid status, and automatic early warning when abnormalities are detected. Compared to traditional manual monitoring methods, this device not only achieves efficient monitoring of the drainage fluid status and timely detection of abnormalities, effectively ensuring patient safety, but also saves manpower, improves convenience for medical staff, avoids oversights in manual monitoring, and effectively improves monitoring accuracy and the work efficiency of medical staff.

[0011] In one optional embodiment, the housing is further provided with a sensor unit; the sensor unit is electrically connected to the control module and the light source emitting module; the sensor unit is used to detect whether there is liquid flow in the drainage tube, and when liquid flow is detected in the drainage tube, it transmits a control signal to the control module, and the control module controls the light source emitting module to emit near-infrared light according to the control signal.

[0012] This invention provides a low-power, low-cost, automated, and reusable high-efficiency real-time monitoring and early warning device for drainage fluid. Through the close cooperation of sensors, control modules, and light source emission modules, it can automatically start monitoring when there is liquid flow in the drainage tube, preventing the phenomenon of continuous operation even when there is no drainage fluid in the drainage tube, avoiding resource waste, and effectively extending the service life of the device.

[0013] In one alternative embodiment, the housing is further provided with an adjustable aperture that surrounds the outer periphery of the drainage tube.

[0014] The real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology provided in this invention can optimize the divergence angle of infrared light and accurately control the direction and focus of the infrared light beam, thereby ensuring that the photodetector can more accurately receive the infrared light after the drainage fluid, and further improve the measurement accuracy and stability.

[0015] In one optional implementation, the adjustable aperture uses a color-changing LED; the adjustable aperture is connected to the control module and is used to receive the warning signal sent by the control module; when the adjustable aperture receives the warning signal, the color-changing LED changes from near-infrared light to a preset light.

[0016] The real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology provided in this utility model can change the color of the LED to emit infrared light under normal working conditions. When an abnormality occurs, the LED can switch from emitting infrared light to emitting other colors of light that are visible to the human eye. This can effectively play an early warning role and remind users of abnormal conditions.

[0017] In one optional embodiment, the housing is further provided with a movable slot, which is fixedly connected to an adjustable aperture. This allows the aperture to move along the slot to adjust the positional relationship between the aperture and the drainage tube, thereby helping to optimize the divergence angle of the infrared light. This ensures that the photodetector can more accurately receive the infrared light after passing through the drainage fluid, further improving measurement accuracy and stability.

[0018] In one optional embodiment, the housing is provided with a fixing clip for clamping the drainage tube. This can effectively assist in fixing the drainage tube.

[0019] In one optional embodiment, the inner wall of the fixing clamp is further provided with a composite material spring assembly, which is used to clamp the drainage tube. This can further assist in fixing the drainage tube, ensuring its stability, and thus ensuring the accuracy of abnormal drainage fluid detection.

[0020] In one alternative embodiment, the clamp is made of a malleable material. This allows it to accommodate drainage tubes of different diameters and prevents deformation and damage to the drainage tubes.

[0021] In one alternative embodiment, a power module is also provided on the housing, and the power module is electrically connected to the control module.

[0022] In one optional embodiment, the housing is further provided with an alarm unit, which is electrically connected to the control module and is used to receive early warning signals. This can remind medical staff to check the drainage fluid in a timely manner, preventing the risk of postoperative complications from being increased due to the failure to detect abnormalities in the drainage fluid in a timely manner. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram illustrating a specific example of a real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram illustrating the composition of another specific example of a real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology according to an embodiment of the present utility model.

[0026] Figure 3This is a side view of a real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of a rotatable LED light strip in an adjustable aperture according to an embodiment of the present invention;

[0028] Explanation of reference numerals in the attached drawings: 1-Housing, 2-Light source emitting module, 3-Photoelectric detection module, 4-Control module, 5-Sensor unit, 6-Adjustable aperture, 61-Rotating LED light strip, 7-Fixing clip, 8-Modible slot, 9-Composite material spring assembly, 10-Drainage tube. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] This embodiment provides a real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology. This device can be used to monitor drainage fluid in real time and issue early warnings when abnormalities occur. Figure 1 This is a schematic diagram of the structure of a real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology according to an embodiment of the present invention, including a housing 1, a light source emitting module 2, a photoelectric detection module 3, and a control module 4, as detailed below.

[0034] The housing 1, used to fix the drainage tube, adopts a telescopic structure. The telescopic structure can adaptively adjust the relative position between the light source emitting module 2 and the photoelectric detection module 3 according to the diameter of the drainage tube, ensuring light emission and reception efficiency and improving detection accuracy. The structure of the housing 1 can be U-shaped or C-shaped, etc.

[0035] The light source emitting module 2, located on the housing 1, is used to emit near-infrared light into the drainage fluid in the drainage tube. When near-infrared light irradiates the drainage fluid, various components in the drainage fluid absorb infrared light of specific wavelengths. By detecting the absorption of different wavelengths of near-infrared light by each component in the drainage fluid, information about the liquid composition can be obtained. For example, near-infrared spectroscopy analysis can be used to detect components in blood, such as blood glucose levels, hemoglobin concentration, and water content. Water typically exhibits significant absorption at approximately 1450 nm and 1940 nm. Glucose has specific absorption peaks in different wavelength bands, approximately 1400-1800 nm and 900-1200 nm. Deoxyhemoglobin (routinely measured in drainage fluid) typically has specific absorption peaks near 556 nm and 430 nm. Part of the near-infrared light passing through the drainage fluid is absorbed, and the remaining light continues to propagate.

[0036] The photoelectric detection module 3 is mounted on the housing 1 and is positioned opposite to the light source emitting module 2. It is used to detect the light signal after the near-infrared light passes through the drainage fluid. The relative distance between the light source emitting module 2 and the photoelectric detection module 3 can be adjusted by a retractable structure.

[0037] The photoelectric detection module 3 is used to detect the light signal after it passes through the liquid. The light signal includes transmitted light and reflected light. When the drainage fluid is a transparent and homogeneous sample, the transmitted light signal is stronger. When there are flocculent substances or the drainage fluid is turbid, the reflected light signal is stronger. The light signal contains different light intensity changes. By detecting the light intensity changes at different wavelengths, the absorption data of various components in the blood can be obtained.

[0038] The control module 4 is electrically connected to the light source emitting module 2 and the photoelectric detection module 3, respectively. It is used to receive transmitted light signals and to trigger an early warning signal when the transmitted light signal is abnormal.

[0039] The control module 4 can detect abnormalities in the light signal, i.e., whether there are any abnormalities in the drainage fluid, based on changes in the light signal sent by the photoelectric detection module 3. Specifically, based on the wavelength characteristics of the light signal, the control module 4 can identify absorption peaks in the spectrum. These absorption peaks are related to different components. The control module 4 compares the real-time measured light signal with the baseline data under normal conditions. Normal drainage fluid has specific spectral characteristics (such as certain characteristic absorption peaks). If the light signal deviates from the preset normal range, it can be preliminarily judged that there is an abnormality in the drainage fluid, such as excessive component quality or abnormal concentration. When an abnormality occurs, an early warning signal will be triggered, which can be used for buzzer alarm, warning light flashing, terminal message prompts, etc. The control module 4 can determine the concentration and mass of the liquid components in the drainage fluid based on near-infrared spectroscopy technology. The first important detection data is the component concentration, and the second important detection data is the component mass, because clinically, when the substance reaches a certain content, it can indicate the occurrence of a certain complication.

[0040] It should be noted that the present invention mainly introduces the hardware structure of the real-time monitoring and early warning device for drainage fluid. The present invention also protects the structure and components of the real-time monitoring and early warning device for drainage fluid. As for the signal analysis method, anomaly judgment method, etc., they are all common methods in related technologies and can also be implemented by other conventional methods.

[0041] The real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology provided in this embodiment places a light source emitting module and a photoelectric detection module for emitting near-infrared light on both sides of the drainage tube. This allows for real-time detection of any abnormalities in the drainage fluid, automatic monitoring of the drainage fluid status, and automatic early warning when abnormalities occur. Compared to traditional manual monitoring methods, this device not only achieves efficient monitoring of the drainage fluid status and timely detection of abnormalities, effectively ensuring patient safety, but also saves manpower, improves convenience for medical staff, avoids oversights in manual monitoring, and improves monitoring accuracy. Furthermore, the real-time monitoring and early warning device for drainage fluid based on near-infrared spectroscopy technology provided in this embodiment is reusable and portable, making it easy to carry and use, effectively assisting medical staff in improving work efficiency.

[0042] In addition, during actual testing, a filter screen can be installed in the drainage tube before it flows through the shell. By using a filter screen with a small pore size, impurities in the drainage fluid can be effectively removed, further reducing the turbidity of the drainage fluid and thus further ensuring the accuracy of the test. Furthermore, both the drainage bag and the drainage tube can be designed to be transparent.

[0043] In some optional embodiments, the housing 1 is also provided with a sensor unit 5; the sensor unit 5 is electrically connected to the control module 4 and the light source emitting module 2; the sensor unit 5 is used to detect whether there is liquid flow in the drainage tube, and when liquid flow is detected in the drainage tube, it transmits a control signal to the control module 4, and the control module 4 controls the light source emitting module 2 to emit near-infrared light according to the control signal, and at the same time, the photoelectric detection module 3 also starts to start.

[0044] The sensor can be an optical sensor, conductivity sensor, capacitive sensor, flow sensor, or any other sensor capable of detecting liquid flow. When liquid flows in the drainage tube, the sensor detects this change and sends a control signal to the control module 4 to control the light source emitting module 2 to emit near-infrared light. Simultaneously, the photoelectric detection module 3 begins detecting the light signal to monitor the drainage fluid status in real time.

[0045] This embodiment provides a low-power, low-cost, automated, and reusable high-efficiency real-time monitoring and early warning device for drainage fluid. Through the close cooperation of sensors, control modules, and light source emission modules, it can automatically start monitoring when there is liquid flow in the drainage tube, preventing the phenomenon of continuous operation when there is no drainage fluid in the drainage tube, avoiding the problem of resource waste, and effectively extending the service life of the device.

[0046] In some alternative implementations, refer to Figure 2 As shown, the housing 1 is also equipped with an adjustable aperture 6, which surrounds the outer circumference of the drainage tube. One end of the adjustable aperture 6 is fixed to the housing 1, and the diameter and position of the aperture can be adjusted according to the installation position and diameter of the drainage tube, so that the aperture can adapt to drainage tubes of different diameters and keep the aperture and the drainage tube 10 aligned axially. See [reference needed]. Figure 3 As shown, the aperture and the beam emission direction of the light source emitting module are not on the same plane. Additionally, refer to... Figure 4 As shown, the adjustable aperture 6 contains multiple rotatable LED strips 61. These rotatable LED strips can rotate to focus the light onto the target position. That is, the diameter of the adjustable aperture 6 is adjustable, and the direction of light illumination is also adjustable. In this embodiment, the aperture uses infrared light. By adjusting the adjustable aperture 6, the divergence angle of the infrared light can be optimized, and the direction and focus of the infrared light beam can be precisely controlled. This ensures that the photodetector can more accurately receive the infrared light after passing through the drainage fluid, further improving measurement accuracy and stability. In this embodiment, the adjustable aperture 6 can simultaneously emit near-infrared light into the drainage fluid in the drainage tube along with the light source emitting module 2. Based on the light source emitting module 2, this ensures that the near-infrared light is uniformly irradiated into the drainage fluid, allowing the photodetector module 3 to accurately detect changes in light intensity.

[0047] In some optional implementations, the adjustable aperture 6 uses a color-changing LED; the adjustable aperture 6 is connected to the control module 4 and is used to receive the warning signal sent by the control module 4; when the adjustable aperture 6 receives the warning signal, the color-changing LED changes from near-infrared light to preset light, such as red light, yellow light, blue light, green light, etc.

[0048] The adjustable aperture 6 provided in this embodiment can be electrically or communicatively connected to the control module 4. The color-changing LED surrounds the drainage tube, maintaining a distance from it. In normal operation, the color-changing LED emits infrared light, which is actually colorless. When an abnormality occurs, it switches to a visible light of another color, effectively serving as a warning and alerting the user to the abnormal situation. Furthermore, the brightness of the light can be adjusted via a terminal to assist the user in observing the liquid condition.

[0049] In some optional embodiments, the housing 1 is further provided with a movable slot 8, which is fixedly connected to the adjustable aperture 6. The movable slot 8 can assist the aperture in moving along the slot direction to adjust the positional relationship between the aperture and the drainage tube, and help optimize the divergence angle of the infrared light, thereby ensuring that the photodetector can more accurately receive the infrared light after passing through the drainage fluid, further improving the measurement accuracy and stability.

[0050] In some optional embodiments, the housing 1 is provided with a fixing clip 7, which is used to clamp the drainage tube. One end of the fixing clip 7 is fixed to the housing 1, and the other end is used to clamp the drainage tube to assist in fixing the drainage tube. The fixing clip 7 and the near-infrared light emitting circuit are not on the same plane.

[0051] In some optional embodiments, the inner wall of the fixing clamp 7 is further provided with a composite material spring assembly 9, which is used to clamp the drainage tube. To ensure the accurate detection of the photoelectric detection module 3, this embodiment also provides a composite material spring assembly 9 on the inner wall of the fixing clamp 7. The side of the composite material spring assembly 9 that contacts the drainage tube is also provided with a contact layer made of flexible material. This contact layer can protect the drainage tube from damage and compression, and also make the drainage tube more stable. The mass production cost of composite material springs is lower than that of metal springs. Under the same stiffness, they are more than 50% lighter than steel leaf springs, and their fatigue life is more than twice that of metal springs. Using composite material springs can reduce the replacement frequency and achieve lightweight and high performance of the device. The composite material spring assembly 9 can further assist in fixing the drainage tube, ensuring the stability of the drainage tube, thereby ensuring the accuracy of abnormal detection of drainage fluid.

[0052] In some alternative embodiments, the fixing clip 7 is made of a malleable material. In this embodiment, the fixing clip 7 is made of a malleable material, such as rubber or plastic, which can accommodate drainage tubes of different diameters and avoid deformation and damage to the drainage tubes.

[0053] In some optional embodiments, the housing 1 is also provided with a power module, which is electrically connected to the control module 4 to supply power to the control module 4, thereby powering devices such as the light source emitting module 2, photoelectric detection module 3, sensor unit 5, and adjustable aperture 6 through the control module 4. In this embodiment, the power module can be a rechargeable battery, enabling long-term use of the drainage fluid detection device.

[0054] In some optional embodiments, the housing 1 is also equipped with an alarm unit, which is electrically connected to the control module 4 and is used to receive warning signals. The alarm unit can be a buzzer, which will sound an alarm when the drainage fluid is abnormal, reminding medical staff to check the drainage fluid status in time. Alternatively, the alarm unit can also be an alarm light of any other color, which can flash when the drainage fluid is abnormal to serve as a warning.

[0055] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A device for real-time monitoring and early warning of drainage fluid based on near-infrared spectroscopy technology, characterized in that, The device includes: A housing (1) is used to fix it on the drainage tube, and the housing (1) adopts a telescopic structure; A light source emitting module (2) is disposed on the housing (1) and is used to emit near-infrared light to the drainage fluid in the drainage tube; A photoelectric detection module (3) is disposed on the housing (1) and is arranged opposite to the light source emitting module (2) for detecting the light signal after the near-infrared light passes through the drainage fluid; the relative distance between the light source emitting module (2) and the photoelectric detection module (3) is adjusted by the retractable structure; The control module (4) is electrically connected to the light source emitting module (2) and the photoelectric detection module (3) respectively, and is used to receive the light signal and to trigger an early warning signal when the light signal is abnormal.

2. The apparatus of claim 1, wherein, The housing (1) is also provided with a sensor unit (5); the sensor unit (5) is electrically connected to the control module (4) and the light source emitting module (2); the sensor unit (5) is used to detect whether there is liquid flow in the drainage tube, and when liquid flow is detected in the drainage tube, it sends a control signal to the control module (4), and the control module (4) controls the light source emitting module (2) to emit the near-infrared light according to the control signal.

3. The apparatus of claim 1, wherein, The housing (1) is also provided with an adjustable aperture (6), which surrounds the outer periphery of the drainage tube.

4. The apparatus of claim 3, wherein, The adjustable aperture (6) uses a color-changing LED; the adjustable aperture (6) is connected to the control module (4) and is used to receive the warning signal sent by the control module (4); when the adjustable aperture (6) receives the warning signal, the color-changing LED changes from near-infrared light to preset light.

5. The apparatus of claim 3, wherein, The housing (1) is also provided with a movable slot (8), which is fixedly connected to the adjustable aperture (6).

6. The apparatus of claim 1, wherein, The housing (1) is provided with a fixing clip (7), which is used to clamp the drainage tube.

7. The apparatus of claim 6, wherein, The inner wall of the fixing clamp (7) is also provided with a composite material spring assembly (9), which is used to clamp the drainage tube.

8. The apparatus of claim 6, wherein, The fixing clip (7) is made of a malleable material.

9. The apparatus of claim 1, wherein, The housing (1) is also provided with a power module, which is electrically connected to the control module (4).

10. The apparatus of claim 1, wherein, An alarm unit is also provided on the housing (1), which is electrically connected to the control module (4) and is used to receive the warning signal.

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