Cerebrospinal fluid drainage monitoring equipment and device

Abstract

The utility model relates to cerebrospinal fluid drainage monitoring equipment and device.An infrared sensor, a controller MCU, an electronic screen and a power source are arranged on an external craniocerebral drainage device, the infrared sensor is used for monitoring infrared signals fed back by cerebrospinal fluid droplets, the controller MCU is used for calculating the dripping speed of cerebrospinal fluid according to the infrared signals, and the electronic screen is used for monitoring the dripping speed of the cerebrospinal fluid according to the dripping speed of the cerebrospinal fluid; the electronic screen is used for displaying the dripping speed of cerebrospinal fluid in real time; the power supply is used for supplying power. Therefore, the dripping speed of the cerebrospinal fluid can be visually monitored and displayed, nurses or patients and family members of the nurses or the patients can visually check the drainage dripping speed of the cerebrospinal fluid, meanwhile, the controller MCU can achieve automatic monitoring of the cerebrospinal fluid, clinical monitoring work of the nurses is liberated, medical care resources are saved, external interference is avoided, and safety is improved.

Description

Technical Field

[0001] This disclosure relates to the field of medical device technology, and in particular to a cerebrospinal fluid drainage monitoring device and apparatus. Background Technology

[0002] Leakage of tissue fluid into the brain due to lesions, inflammation, or abnormal vascular permeability is most commonly seen in non-cystic effusions. Mild hydrocephalus may not require immediate treatment; observation followed by a re-examination is recommended. Severe hydrocephalus, like tumors, can lead to increased intracranial pressure and endanger life, thus requiring ventriculoperitoneal shunt surgery.

[0003] When patients develop conditions such as hydrocephalus, cerebrospinal fluid drainage is generally necessary. This not only reduces intracranial pressure and hydrocephalus but also reduces the stimulation of bloody cerebrospinal fluid and promotes the absorption of accumulated blood. (See attached image) Figure 1 The diagram shown illustrates the principle of cerebrospinal fluid drainage. A drainage tube is inserted into the skull through craniotomy, and the cerebrospinal fluid is collected into the drainage bag using a cerebrospinal fluid drainage device (consisting of a drainage tube, an external cranial drain (also called a drain), and a drainage bag).

[0004] However, the normal rate of cerebrospinal fluid (CSF) production in the human body is about 20 mL / h, so the daily CSF drainage volume for a patient should ideally not exceed 500 ml. If the CSF drainage volume is excessive, exceeding 500 ml, it may lead to symptoms such as headache, dizziness, nausea, and altered consciousness, and may even cause serious consequences such as subarachnoid collapse and brain herniation. Generally, a daily CSF outflow exceeding 500 ml is dangerous. This is because the amount of CSF produced by the human body within 24 hours is approximately 400-500 ml, so if a patient requires CSF drainage, a volume exceeding 500 ml generally poses a risk.

[0005] Existing cerebrospinal fluid drainage equipment aligns the zero point of the pressure gauge with the tragus and uses negative pressure for drainage. While this allows for continuous collection of cerebrospinal fluid, it still carries the following clinical risks:

[0006] The entire drainage process requires nurses to clinically control and observe, and they need to monitor continuously without being distracted. Therefore, it is quite difficult. Even slight external influences, such as patient consultations or conversations, may affect the nurses' attention and cause the risk of over-drainage. Thus, it is impossible to free nurses from this process and save nursing resources.

[0007] Furthermore, the drainage rate of cerebrospinal fluid cannot be visually monitored, and it is not easy to quantify and control the drainage rate of cerebrospinal fluid by visual observation. Utility Model Content

[0008] To address the aforementioned issues, this application proposes a cerebrospinal fluid drainage monitoring device and apparatus.

[0009] This application provides a cerebrospinal fluid drainage monitoring device, comprising a drainage tube, an external cranial drain, and a drainage bag connected in sequence, wherein:

[0010] The external cranial drainage device is equipped with an infrared sensor, a controller MCU, an electronic screen, and a power supply.

[0011] The infrared sensor is used to monitor the infrared signal fed back by cerebrospinal fluid droplets.

[0012] The controller MCU is used to calculate the drip rate of cerebrospinal fluid based on the infrared signal.

[0013] The electronic screen is used to display the drip rate of cerebrospinal fluid in real time.

[0014] The power source is used for power supply;

[0015] The infrared sensor, electronic screen, and power supply are all electrically connected to the controller MCU.

[0016] As an optional embodiment of this application, the infrared sensor may include:

[0017] Infrared emitter A is located on the outer surface of the external brain drain and is used to emit infrared light;

[0018] Infrared receiver B is located on the outer side of the external cerebrospinal fluid drain and is used to receive the infrared light signal reflected by the cerebrospinal fluid droplets in the external cerebrospinal fluid drain and feed it back to the controller MCU. The controller MCU calculates the drip rate of the cerebrospinal fluid in real time based on the infrared light signal fed back by the cerebrospinal fluid droplets.

[0019] The infrared transmitter A and the infrared receiver B are electrically connected to the controller MCU, respectively.

[0020] As an optional embodiment of this application, the external cranial drainage device may also be provided with:

[0021] A timer is used to time the duration t of each received infrared signal;

[0022] The timer is electrically connected to the controller MCU.

[0023] As an optional embodiment of this application, the controller MCU may also be used for:

[0024] The cerebrospinal fluid drainage volume is calculated in real time based on the product of the time t and the drip rate of the cerebrospinal fluid.

[0025] As an optional embodiment of this application, the electronic screen may also be used for:

[0026] It displays the cerebrospinal fluid drainage volume in real time.

[0027] As an optional embodiment of this application, the controller MCU may also be used for:

[0028] Determine if the current cerebrospinal fluid drainage volume exceeds a preset threshold L:

[0029] L = (0.25 ~ 0.85)L0,

[0030] L0 is the initial value, ranging from 400 to 500 ml;

[0031] If the limit is exceeded, an indicator light alarm signal is sent to the electronic screen;

[0032] Alternatively, give up.

[0033] In another aspect, this application proposes a cerebrospinal fluid drainage monitoring device, comprising:

[0034] Cerebrospinal fluid drainage monitoring equipment.

[0035] As an optional implementation of this application, it may also include:

[0036] The 5G module is used for communication between the cerebrospinal fluid drainage monitoring device and the nurse station backend to report the current cerebrospinal fluid drip rate and drainage volume to the nurse station backend for recording.

[0037] The PDA terminal is used by nurses to input the corresponding threshold L to the nurse station backend, and the nurse station backend sends it to the 5G module.

[0038] The 5G module receives and forwards the threshold L to the controller MCU. The controller MCU determines whether the current cerebrospinal fluid drainage volume exceeds the preset threshold L. If it does, it sends an indicator light alarm signal to the electronic screen.

[0039] The 5G module and PDA terminal are respectively connected to the back-end of the nurse station for communication.

[0040] Technical effects of this utility model:

[0041] This application incorporates an infrared sensor, a microcontroller (MCU), an electronic display, and a power supply onto an external cranial drainage device. The infrared sensor monitors the infrared signal from the cerebrospinal fluid (CSF) droplets; the MCU calculates the CSF drip rate based on the infrared signal; the electronic display shows the real-time CSF drip rate; and the power supply provides power. This allows for visual monitoring and display of the CSF drip rate, enabling nurses, patients, and their families to directly observe the drainage rate. This automates CSF monitoring, freeing up nurses from clinical monitoring duties, saving medical resources, and improving safety by preventing external interference.

[0042] Other features and aspects of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0043] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this disclosure together with the specification and serve to explain the principles of this disclosure.

[0044] Figure 1 The diagram shows a schematic of the operation of a cerebrospinal fluid drainage device used clinically in the prior art.

[0045] Figure 2 The diagram shows the working operation of the cerebrospinal fluid drainage monitoring device of this utility model;

[0046] Figure 3 The diagram shown is a schematic diagram of the operation of the cerebrospinal fluid drainage monitoring device of this utility model. Detailed Implementation

[0047] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0048] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0049] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0050] Example 1

[0051] In this embodiment, automated monitoring improvements are made to the existing cerebrospinal fluid drainage equipment. Please refer to the appendix for the working structure and principle of the existing cerebrospinal fluid drainage equipment. Figure 1 To understand.

[0052] like Figure 2 As shown, this application proposes a cerebrospinal fluid drainage monitoring device, comprising a drainage tube, an external cranial drain, and a drainage bag connected in sequence, wherein:

[0053] The external cranial drainage device is equipped with an infrared sensor, a controller MCU, an electronic screen, and a power supply.

[0054] The infrared sensor is used to monitor the infrared signal fed back by cerebrospinal fluid droplets.

[0055] The controller MCU is used to calculate the drip rate of cerebrospinal fluid based on the infrared signal.

[0056] The electronic screen is used to display the drip rate of cerebrospinal fluid in real time.

[0057] The power source is used for power supply;

[0058] The infrared sensor, electronic screen, and power supply are all electrically connected to the controller MCU.

[0059] This solution integrates an infrared sensor into the collection chamber of existing cerebrospinal fluid drainage equipment. The infrared sensor detects the droplet velocity signal during collection using infrared light, and the corresponding droplet velocity is calculated by the MCU and displayed on an electronic screen.

[0060] MCU control chips can perform a series of control, logic operations and judgments, and the specific chip model is not limited here.

[0061] The electronic display screen can be an LED screen, installed on the outer surface of the collection chamber to display the drip rate signal and the real-time drainage volume. The MCU can calculate the corresponding drainage volume based on the product of the timer and the drip rate. A lithium battery or other power source can also be integrated into the collection chamber for power supply.

[0062] It has control programs for various electronic devices such as sensors controlled by a controller, which can be controlled by an embedded program in an MCU. These programs are not within the scope of this application, but are merely used as functional descriptions and application understandings of the various electronic facilities.

[0063] As an optional embodiment of this application, the infrared sensor may include:

[0064] Infrared emitter A is located on the outer surface of the external brain drain and is used to emit infrared light;

[0065] Infrared receiver B is located on the outer side of the external cerebrospinal fluid drain and is used to receive the infrared light signal reflected by the cerebrospinal fluid droplets in the external cerebrospinal fluid drain and feed it back to the controller MCU. The controller MCU calculates the drip rate of the cerebrospinal fluid in real time based on the infrared light signal fed back by the cerebrospinal fluid droplets.

[0066] The infrared transmitter A and the infrared receiver B are electrically connected to the controller MCU, respectively.

[0067] In this solution, the infrared sensor, also known as an infrared speed sensor, mainly consists of a light source, a receiver, and a processor. It utilizes optical principles to detect the speed of an object. When an object or droplet moves, it reflects or absorbs some infrared light. This reflected infrared light is received by the receiver and generates a current signal. The speed sensor converts the current signal into a digital signal and then measures the object's speed by calculating the time difference.

[0068] Specifically, the operation of an infrared speed sensor can be divided into two stages. First, the speed sensor emits a precise beam of infrared light through a light source, which is then directed onto a moving object. As the object moves, it reflects or absorbs a portion of the infrared light, which returns to the receiver and generates an electrical signal. Second, the receiver converts the electrical signal into a digital signal and measures the object's speed by calculating the time difference. Because the speed sensor has very high accuracy and response time, it can accurately measure the speed of an object.

[0069] In this embodiment, the model of the infrared sensor is not limited.

[0070] As an optional embodiment of this application, the external cranial drainage device may also be provided with:

[0071] A timer is used to time the duration t of each received infrared signal;

[0072] The timer is electrically connected to the controller MCU.

[0073] Each time the MCU receives an infrared feedback signal from a droplet, it sends a level signal to the timer to remind the timer to start timing. For example, if the time of the first droplet is 09:30:23 (unit: minutes, minutes, seconds), the time of the next droplet is timed in the same way. The MCU calculates the time difference to obtain the drop rate, such as a few drops per second.

[0074] The drainage volume can then be calculated by multiplying the total timing time by the drop rate. The size of each droplet can be preset in the MCU program, and the MCU can then calculate the volume based on the total number of drops.

[0075] As an optional embodiment of this application, the controller MCU may also be used for:

[0076] The cerebrospinal fluid drainage volume is calculated in real time based on the product of the time t and the drip rate of the cerebrospinal fluid.

[0077] As an optional embodiment of this application, the electronic screen may also be used for:

[0078] It displays the cerebrospinal fluid drainage volume in real time.

[0079] As an optional embodiment of this application, the controller MCU may also be used for:

[0080] Determine if the current cerebrospinal fluid drainage volume exceeds a preset threshold L:

[0081] L = (0.25 ~ 0.85)L0,

[0082] L0 is the initial value, ranging from 400 to 500 ml;

[0083] If the limit is exceeded, an indicator light alarm signal is sent to the electronic screen;

[0084] Alternatively, give up.

[0085] The threshold L for drainage volume can be preset in the embedded program of the controller MCU chip. The threshold L ranges from 0.25 to 0.85 times L0, with L0 being the initial value. Since the normal drainage volume of cerebrospinal fluid in a human body is 400 to 500 ml, the drainage volume for each patient should ideally not exceed this initial value. To ensure safe and preventative drainage, this solution employs a coefficient control scheme to regulate drainage for the patient.

[0086] In this embodiment, the integration structure and deployment of the various electronic devices on the collection chamber are not limited, as long as they are applied in accordance with the principles of this solution. The specific models and deployment structures selected are not limited in this embodiment.

[0087] In addition to the above-mentioned application structure, this solution also includes an electric lifting component for the drainage device, which enables the "external brain drainage device" to be automatically raised and lowered, making it convenient to adjust the height of the drainage device and adjust the zero point, etc.

[0088] like Figure 3 As shown, the electric lifting assembly includes a screw 1 and a slider 2. The slider 2 is fixed to the outer surface of the cranial external drainage device, and the screw 1 cooperates with the slider 2. One end of the screw 1 is fitted onto the output end of a stepper motor (which can be ceiling-mounted). The cranial external drainage device can be blocked on one or both sides by limiting blocks.

[0089] The stepper motor is controlled by an MCU.

[0090] Under the control of the MCU, forward and reverse rotation can be achieved, thereby driving screw 1 to rotate in both directions. Simultaneously, the external cerebral drainage device can be adjusted up and down along screw 1 to reach the desired height. This can be used for zero-point registration and to adapt to the patient's cerebral drainage height requirements.

[0091] Nurses can send lifting commands (including control parameters) to the cerebrospinal fluid drainage monitoring device via a terminal, instructing its MCU to execute the lifting commands. This controls the stepper motor to rotate, driving the screw and synchronously lifting the device. Specific control parameters can be set by the nurse.

[0092] Example 2

[0093] like Figure 3 As shown, based on the implementation principle of Embodiment 1, this application, in another aspect, proposes a cerebrospinal fluid drainage monitoring device, comprising:

[0094] The cerebrospinal fluid drainage monitoring device described in Example 1, as well as the 5G module and PDA terminal:

[0095] The 5G module is used for communication between the cerebrospinal fluid drainage monitoring device and the nurse station backend to report the current cerebrospinal fluid drip rate and drainage volume to the nurse station backend for recording.

[0096] The PDA terminal is used by nurses to input the corresponding threshold L to the nurse station backend, and the nurse station backend sends it to the 5G module.

[0097] The 5G module receives and forwards the threshold L to the controller MCU. The controller MCU determines whether the current cerebrospinal fluid drainage volume exceeds the preset threshold L. If it does, it sends an indicator light alarm signal to the electronic screen.

[0098] The 5G module and PDA terminal are respectively connected to the back-end of the nurse station for communication.

[0099] In the application of the aforementioned cerebrospinal fluid drainage monitoring equipment, remote monitoring can also be achieved based on the Internet of Things (IoT) model, allowing nurses in the background to remotely view and control the drainage drip rate. A 5G module is integrated into the cerebrospinal fluid drainage monitoring equipment to connect the device with the nurse station's backend; the specific 5G communication module is controlled by an MCU.

[0100] After the MCU calculates the corresponding data, the 5G module can report it to the nurse station backend. As for the communication link between the 5G module and the server where the nurse station backend is located, the administrator can configure the 5G network.

[0101] Through data interaction via 5G modules, the nurse station backend can receive the current drip rate and drainage volume of cerebrospinal fluid reported by the cerebrospinal fluid drainage monitoring device. The server where the nurse station backend is located records the real-time reported data, making it convenient for nurses to view the current patient's drainage data through the server where the nurse station backend is located, thus realizing remote monitoring.

[0102] Meanwhile, nurses can remotely log in to the nursing station backend using handheld nursing terminal devices, such as PDAs, to view data. They can also input corresponding drip rate control information into the backend via the terminal. The nursing station backend then sends this information to the 5G module, which in turn forwards it to the MCU. The MCU parses and reads the threshold value L and adjusts the drip rate accordingly (the MCU controls the drip rate of the external cranial drainage device, specifically an electronic one, controlled by the MCU based on the threshold L). This enables remote drainage control, freeing nurses from on-site monitoring, improving nursing efficiency and saving nursing resources.

[0103] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A cerebrospinal fluid drainage monitoring apparatus, characterized by, It includes a drainage tube, an external cranial drainage device, and a drainage bag connected in sequence, wherein: The external cranial drainage device is equipped with an infrared sensor, a controller MCU, an electronic screen, a timer, and a power supply. The infrared sensor is used to monitor the infrared signal reflected by cerebrospinal fluid droplets. The infrared sensor includes: an infrared emitter A, disposed on the outer surface of the external cerebrospinal fluid drain, for emitting infrared light; and an infrared receiver B, disposed on the outer surface of the external cerebrospinal fluid drain, for receiving the infrared light signal reflected by the cerebrospinal fluid droplets in the external cerebrospinal fluid drain and feeding it back to the controller MCU. The controller MCU calculates the cerebrospinal fluid drip rate in real time based on the infrared light signals fed back by the cerebrospinal fluid droplets from the front and rear. The infrared emitter A and the infrared receiver B are electrically connected to the controller MCU. The controller MCU is used to calculate the cerebrospinal fluid drip rate based on the infrared signal, and to calculate the cerebrospinal fluid drainage volume in real time based on the product of time t and the cerebrospinal fluid drip rate. It also determines whether the current cerebrospinal fluid drainage volume exceeds a preset threshold L: L = (0.25~0.85)L0, where L0 is the initial value, ranging from 400 to 500 ml. If the threshold is exceeded, an indicator light alarm signal is sent to the electronic screen; otherwise, the process is abandoned. The timer is used to time the duration t of each received infrared signal; The electronic screen is used to display the drip rate and drainage volume of cerebrospinal fluid in real time; The power source is used for power supply; The infrared sensor screen, timer, and power supply are electrically connected to the controller MCU. It also includes an electric lifting assembly: used to automatically raise and lower the external cranial drainage device, adjust the height of the drainage device, and adjust the zero point; the electric lifting assembly includes a screw and a slider, the slider is fixed on the outer surface of the external cranial drainage device, the screw cooperates with the slider, and one end of the screw is installed on the output end of the stepper motor; the external cranial drainage device is blocked on one or both sides by limit blocks; the stepper motor is controlled by an MCU, and under the control of the MCU, it can achieve forward and reverse rotation, thereby driving the screw to move forward and backward, and synchronously raising and lowering the external cranial drainage device along the screw to achieve the desired height, for zero point registration and to adapt to the patient's cranial drainage height requirements; the terminal sends a lifting command to the cerebrospinal fluid drainage monitoring device, and the MCU executes the lifting command, thereby controlling the forward and reverse rotation of the stepper motor, driving the screw to rotate, and synchronously driving the lifting and lowering.

2. A cerebrospinal fluid drainage monitoring device, characterized in that, include: The cerebrospinal fluid drainage monitoring device according to claim 1.

3. A cerebrospinal fluid drainage monitoring device according to claim 2, wherein, Also includes: The 5G module is used for communication between the cerebrospinal fluid drainage monitoring device and the nurse station backend to report the current cerebrospinal fluid drip rate and drainage volume to the nurse station backend for recording. The PDA terminal is used by nurses to input the corresponding threshold L to the nurse station backend, and the nurse station backend sends it to the 5G module. The 5G module receives and forwards the threshold L to the controller MCU. The controller MCU determines whether the current cerebrospinal fluid drainage volume exceeds the preset threshold L. If it does, it sends an indicator light alarm signal to the electronic screen. The 5G module and PDA terminal are respectively connected to the back-end of the nurse station for communication.

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