Cerebrospinal fluid extraction flow rate control assembly
By designing detection mechanisms and control mechanisms in the cerebrospinal fluid extraction device, using infrared sensors to detect flow rates and automatically adjust the extrusion degree, the problem of difficulty in realizing accurate flow rate control in existing devices is solved, and precise control of cerebrospinal fluid flow rate and intelligent system are achieved. Improvement.
Patent Information
- Application Number
- CN202411696234.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-02-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing cerebrospinal fluid extraction devices are difficult to achieve accurate flow rate control, and the adjustment accuracy depends on the operator's experience and feel, and there is great subjectivity and uncertainty.
A cerebrospinal fluid extraction flow rate control component is designed, including a detection mechanism and a control mechanism. The infrared sensor detects the flow rate of cerebrospinal fluid, the information processing unit processes and displays the flow rate data, and the control mechanism automatically adjusts the squeezing degree of the second drainage tube according to the flow rate to achieve accurate control of the flow rate of cerebrospinal fluid.
Through the coordinated work of the detection mechanism and the control mechanism, the precise control of the flow rate of cerebrospinal fluid is achieved, the intelligence and automation of the system are improved, and the occurrence of complications is reduced.
Smart Images
Figure CN119405921A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field related to medical instruments, and in particular to a cerebrospinal fluid extraction flow rate control component. Background Art
[0002] As an indispensable part of the modern medical system, medical devices play a vital role in all aspects of disease diagnosis, treatment, rehabilitation and prevention. Cerebrospinal fluid is a colorless and transparent liquid present in the ventricles and subarachnoid space. It plays an important role in buffering, protecting, nourishing and transporting metabolites for the central nervous system. In the diagnosis and treatment of many neurosurgical and neurological diseases, cerebrospinal fluid extraction is often required. In some neurological infectious diseases, extracting cerebrospinal fluid for laboratory testing helps to identify pathogens and provide a basis for precise treatment. In addition, treatment methods such as cerebrospinal fluid shunt surgery also require precise control of the cerebrospinal fluid extraction flow rate. Therefore, a cerebrospinal fluid extraction flow rate control component is particularly needed.
[0003] Cerebrospinal fluid leakage (CSFL) is one of the most common complications after lumbar surgery, with an incidence of 0.3% to 13%. CSFL can cause many adverse complications, such as postoperative hypotensive headache, subcutaneous effusion and pseudocyst formation, delayed wound healing, surgical area infection, cauda equina hernia, etc. These complications may seriously affect the patient's recovery and have many negative effects on the patient's psychology. In most cases, the drainage time of such patients is long, so drainage care is the focus and difficulty of daily nursing work for such patients. Surveys show that most physicians place closed negative pressure drainage after most lumbar spine surgeries to avoid complications such as hematoma. Continuous CSFL is prone to cause symptoms of intracranial hypotension. Although normal pressure drainage can reduce the occurrence of complications such as intracranial hypotension, it may cause poor drainage of drainage materials in the incision after surgery, resulting in complications such as hematoma compression, infection, incision exudation and delayed healing. Therefore, it is hoped that a device can be invented to control the cerebrospinal fluid flow rate through monitoring, and to achieve a balance between the two to reduce complications. However, most existing cerebrospinal fluid extraction devices use simple mechanical structures to adjust the flow rate, such as controlling the flow of cerebrospinal fluid by adjusting the opening of a clamp or a valve. However, this method is difficult to achieve precise flow rate control because its adjustment accuracy depends on the operator's experience and feel, which is highly subjective and uncertain. Summary of the invention
[0004] The object of the present invention is to provide a cerebrospinal fluid extraction flow rate control component to solve the problem that most of the existing cerebrospinal fluid extraction devices proposed in the above background technology use a simple mechanical structure to adjust the flow rate, such as controlling the flow of cerebrospinal fluid by adjusting the opening of a clamp or a valve. However, this method is difficult to achieve precise flow rate control because its adjustment accuracy depends on the operator's experience and feel, and there are great subjectivity and uncertainty problems.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a cerebrospinal fluid drainage flow rate control component, comprising a first drainage tube, a dropper is fixedly connected to one end surface of the first drainage tube, a second drainage tube is fixedly connected to one end surface of the dropper, a detection mechanism is provided on the outer surface of the dropper, a control mechanism is provided on the outer surface of the second drainage tube, and a replacement and installation mechanism is provided on one end surface of the second drainage tube; The control mechanism includes a limiting block, a control block, a limiting groove, a limiting block, a connecting block, an extrusion block, a push rod, an electric push rod, a power supply block, a stabilizing block, a fixing groove, a rubber plug, a connecting plate, a cover plate, a first fixing plate, a first rotating block, a rotating shaft, a limiting piece, a second rotating block and a second fixing plate. The outer surface of the second drainage tube is fixedly connected with the limiting block, the outer surface of the second drainage tube is slidably connected with the control block, the inner surface of the control block is provided with a limiting groove, the inner surface of the limiting groove is slidably connected with the limiting block, one side surface of the limiting block is fixedly connected with the connecting block, one side surface of the connecting block is fixedly connected with the push rod, the surface of the push rod is slidably connected with the electric push rod, and the electric push rod A power supply block is fixedly connected to one end surface of the rod, a stabilizing block is fixedly connected to one end surface of the control block, a fixing groove is provided on the inner side surface of the stabilizing block, a rubber plug is slidably connected to the inner side surface of the fixing groove, a connecting plate is fixedly connected to one end surface of the rubber plug, a cover plate is fixedly connected to one side surface of the connecting plate, a first fixing plate is fixedly connected to one side surface of the cover plate, a first rotating block is fixedly connected to one side surface of the first fixing plate, a rotating shaft is rotatably connected to the inner side surface of the first rotating block, a limiting plate is fixedly connected to one end surface of the rotating shaft, a second rotating block is rotatably connected to the outer side surface of the rotating shaft, and a second fixing plate is fixedly connected to the outer side surface of the second rotating block.
[0006] Preferably, two groups of limiting blocks are provided, and the inner wall size of the limiting groove is consistent with the outer wall size of the limiting block.
[0007] Preferably, the limit blocks are symmetrically arranged in two groups around the central axis of the connecting block, and the connecting blocks are symmetrically arranged in two groups around the central axis of the extrusion block.
[0008] Preferably, the extrusion block forms a sliding structure through a push rod and an electric push rod, and the inner wall size of the fixing groove is consistent with the outer wall size of the rubber plug.
[0009] Preferably, the outer wall size of the rotating shaft matches the inner wall size of the first rotating block, and two groups of the limiting plates are provided.
[0010] Preferably, the detection mechanism includes a control board, an infrared sensor, a power supply, an information processing unit, a display panel and a transmission line, the outer surface of the dropper is fixedly connected to the control board, one side surface of the control board is fixedly connected to the infrared sensor, one side surface of the control board is fixedly connected to the power supply, one side surface of the control board is fixedly connected to the information processing unit, one side surface of the control board is fixedly connected to the display panel, and one side surface of the control board is fixedly connected to the transmission line.
[0011] Preferably, the power supply is fixedly connected to the display panel via a control board, and the power supply block is fixedly connected to the control board via a transmission line.
[0012] Preferably, the replacement and installation mechanism includes a connecting head, a connecting groove, a connecting column, a drainage head, a fixing ring, bolts and nuts, one end surface of the second drainage tube is fixedly connected to the connecting head, the inner surface of the connecting head is provided with a connecting groove, the inner surface of the connecting groove is threadedly connected to the connecting column, one end surface of the connecting column is fixedly connected to the drainage head, the outer surface of the connecting head is connected to the fixing ring, the surface of the fixing ring is penetrated by bolts, and the outer surface of the bolt is threadedly connected to the nut.
[0013] Preferably, the inner wall size of the connecting groove matches the outer wall size of the connecting column, and the outer surface of the connecting column is provided with a thread.
[0014] Preferably, two groups of threaded holes are provided on the surface of the fixing ring, and the bolts pass through the two groups of threaded holes provided on the surface of the fixing ring.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the cerebrospinal fluid outlet flow rate control component, through the setting of the detection mechanism and the control mechanism, the infrared sensor is used as the key detection component and is fixed on the outer surface of the dropper. It uses the characteristics of infrared rays to detect the flow rate of cerebrospinal fluid. The power supply is fixed on the control board to provide power support for the entire detection mechanism. It is connected to other components through the control board to ensure that the infrared sensor, information processing unit and display panel can work normally. The information processing unit receives the original detection data from the infrared sensor. The flow rate data processed by the information processing unit will be displayed on the display panel in a clear and understandable manner. The detection mechanism and the control mechanism can be connected through the transmission line. The second drainage tube is connected to the control mechanism so that the detected flow rate data can be fed back to the control mechanism in time, so that the control mechanism can automatically adjust the squeezing degree of the second drainage tube according to the flow rate conditions, so as to realize the precise control of the cerebrospinal fluid flow rate. This data transmission function ensures the coordinated work of the entire cerebrospinal fluid drainage system and improves the intelligence and automation level of the system. The limiting block fixed on the outer surface of the second drainage tube mainly limits the moving range of the control block. The electric push rod is powered by the power supply block. When it receives the control signal, it can push the push rod to move. The push rod drives the connecting block and the limit block connected to it to slide in the limit groove, so that the squeezing block applies pressure to the second drainage tube or reduces the pressure to achieve the purpose of controlling the cerebrospinal fluid flow rate. When it is needed When the flow rate needs to be reduced, the electric push rod pushes the extrusion block to squeeze the second drainage tube, reducing the effective cross-sectional area of the pipeline, increasing the fluid resistance, and thus reducing the flow rate. When the flow rate needs to be increased, the reverse operation is performed to reduce the pressure of the extrusion block on the drainage tube. The smooth sliding of the limit block in the limit groove ensures the linearity and stability of the movement of the extrusion block, so that the second drainage tube can be squeezed accurately to achieve precise adjustment of the cerebrospinal fluid flow rate. The cover plate can provide certain support and protection for the connected components to prevent external factors from interfering with and damaging the internal structure. In the actual use environment, there may be some slight collisions or vibrations. The cover plate can play a certain protective role to ensure the normal operation and The stability of the connection. When it is necessary to open the cover to check the interior, first take out the rubber plug from the fixing groove on the inner side of the stabilizing block, and then rotate the cover. The cover is fixedly connected to the first rotating block and the first fixed plate, and the second fixed plate is fixedly connected to the control block. When the cover is rotated, the first fixed plate and the first rotating block will rotate together. Since the first rotating block is rotatably connected to the second rotating block through the rotating shaft, the cover can be rotated around the rotating shaft. This rotating design facilitates the inspection and maintenance of internal components. When it is necessary to check the working status of the electric push rod, the sliding conditions of the connecting block and the limit block and other internal components, these components can be directly observed by rotating the cover without disassembling the entire control mechanism, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1This is a schematic diagram of the side appearance structure of the present invention; Figure 2 This is a schematic diagram of the structure of the dropper and the control panel cooperating with each other in the present invention; Figure 3 It is a schematic diagram of the structure of the rotation shaft and the first rotating block cooperating with each other in the present invention; Figure 4 This is a schematic diagram of the structure of the second drainage tube and the limiting block cooperating with each other in the present invention; Figure 5 This is a schematic diagram of the structure of the electric push rod and the push rod cooperating with each other in the present invention; Figure 6 This is a schematic diagram of the structure of the transmission line and the power supply block cooperating with each other in the present invention; Figure 7 This is a schematic diagram of the structure of the connection groove and the connection column cooperating with each other in the present invention; Figure 8 It is a schematic diagram of the structure in which the fixing ring and the bolt cooperate with each other in the present invention.
[0017] In the figure: 1, first drainage tube; 2, dropper; 3, second drainage tube; 4, detection mechanism; 401, control board; 402, infrared sensor; 403, power supply; 404, information processing unit; 405, display panel; 406, transmission line; 5, control mechanism; 501, limit block; 502, control block; 503, limit groove; 504, limit block; 505, connection block; 506, extrusion block; 507, push rod; 508, electric push rod; 509, supply Electric block; 510, stabilizing block; 511, fixing groove; 512, rubber plug; 513, connecting plate; 514, cover plate; 515, first fixing plate; 516, first rotating block; 517, rotating shaft; 518, limiting plate; 519, second rotating block; 520, second fixing plate; 6, replacement installation mechanism; 601, connecting head; 602, connecting groove; 603, connecting column; 604, drainage head; 605, fixing ring; 606, bolt; 607, nut. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0019] See also Figure 1-8The present invention provides a technical solution: a cerebrospinal fluid outflow flow rate control component, comprising a first drainage tube 1, a dropper 2 is fixedly connected to one end surface of the first drainage tube 1, a second drainage tube 3 is fixedly connected to one end surface of the dropper 2, a detection mechanism 4 is arranged on the outer surface of the dropper 2, a control mechanism 5 is arranged on the outer surface of the second drainage tube 3, and a replacement installation mechanism 6 is arranged on one end surface of the second drainage tube 3; The control mechanism 5 includes a limiting block 501, a control block 502, a limiting groove 503, a limiting block 504, a connecting block 505, an extruding block 506, a push rod 507, an electric push rod 508, a power supply block 509, a stabilizing block 510, a fixing groove 511, a rubber plug 512, a connecting plate 513, a cover plate 514, a first fixing plate 515, a first rotating block 516, a rotating shaft 517, a limiting piece 518, a second rotating block 519 and a second fixing plate 520. The outer surface of the second drainage tube 3 is fixedly connected with the limiting block 501, the outer surface of the second drainage tube 3 is slidably connected with the control block 502, the inner surface of the control block 502 is provided with a limiting groove 503, the inner surface of the limiting groove 503 is slidably connected with the limiting block 504, and the limiting block 504 A connecting block 505 is fixedly connected to one side surface of the connecting block 505, a push rod 507 is fixedly connected to one side surface of the connecting block 505, an electric push rod 508 is slidably connected to the surface of the push rod 507, a power supply block 509 is fixedly connected to one end surface of the electric push rod 508, a stabilizing block 510 is fixedly connected to one end surface of the control block 502, a fixing groove 511 is provided on the inner side surface of the stabilizing block 510, a rubber plug 512 is slidably connected to the inner side surface of the fixing groove 511, a connecting plate 513 is fixedly connected to one end surface of the rubber plug 512, a cover plate 514 is fixedly connected to one side surface of the connecting plate 513, a first fixing plate 515 is fixedly connected to one side surface of the cover plate 514, a first fixing plate 515 is fixedly connected to one side surface of the first fixing plate 515, a first rotating block 516 is fixedly connected to one side surface of the first rotating block 516, and a first The inner surface of the rotating block 516 is rotatably connected with a rotating shaft 517, one end surface of the rotating shaft 517 is fixedly connected with a limiting piece 518, the outer surface of the rotating shaft 517 is rotatably connected with a second rotating block 519, and the outer surface of the second rotating block 519 is fixedly connected with a second fixed plate 520. By setting the limiting block 501, the control block 502, the limiting groove 503, the limiting block 504, the connecting block 505, the extruding block 506, the push rod 507, the electric push rod 508, the power supply block 509, the stabilizing block 510, the fixing groove 511, the rubber plug 512, the connecting plate 513, the cover plate 514, the first fixed plate 515, the first rotating block 516, the rotating shaft 517, the limiting piece 518, the second rotating block 519 and the second fixed plate 520, when using When the control block 502 is in the state of being moved, the limiting block 501 fixed on the outer surface of the second drainage tube 3 mainly limits the moving range of the control block 502. The electric push rod 508 is powered by the power supply block 509. After receiving the control signal, it can push the push rod 507 to move. The push rod 507 drives the connecting block 505 and the limiting block 504 connected thereto to slide in the limiting groove 503, thereby causing the squeezing block 506 to apply pressure to or reduce the pressure on the second drainage tube 3 to achieve the purpose of controlling the flow rate of cerebrospinal fluid. When the flow rate needs to be reduced, the electric push rod 508 pushes the squeezing block 506 to squeeze the second drainage tube 3, reducing the effective cross-sectional area of the pipeline and increasing the fluid resistance, thereby reducing the flow rate. When the flow rate needs to be increased, the reverse operation is performed to reduce the pressure of the squeezing block 506 on the drainage tube.The limit block 504 slides smoothly in the limit groove 503, ensuring the linearity and stability of the extrusion block 506, so that the second drainage tube 3 can be squeezed accurately to achieve precise adjustment of the cerebrospinal fluid flow rate. The cover plate 514 can provide certain support and protection for the components connected to it to prevent external factors from interfering with and damaging the internal structure. In the actual use environment, there may be some slight collisions or vibrations. The cover plate 514 can play a certain protective role to ensure the normal operation of the internal components and the stability of the connection. When it is necessary to open the cover plate 514 to check the inside, first take out the rubber plug 512 from the fixing groove 511 on the inner side of the stabilizing block 510, and then rotate the cover plate 514. 14 is fixedly connected to the first rotating block 516 and the first fixed plate 515, and the second fixed plate 520 is fixedly connected to the control block 502. When the cover plate 514 is rotated, the first fixed plate 515 and the first rotating block 516 will rotate together. Since the first rotating block 516 is rotatably connected to the second rotating block 519 through the rotating shaft 517, the rotating cover plate 514 can be rotated around the rotating shaft 517. This rotating design facilitates the inspection and maintenance of internal components. When it is necessary to check the working state of the electric push rod 508, the sliding condition of the connecting block 505 and the limit block 504 and other internal components, these components can be directly observed by rotating the cover plate 514 without disassembling the entire control mechanism 5, thereby improving maintenance efficiency.
[0020] Furthermore, two groups of limiting blocks 501 are provided, and the inner wall size of the limiting groove 503 is consistent with the outer wall size of the limiting block 504. Through the setting of the limiting block 501, when in use, when the control block 502 slides on the outer surface of the second drainage tube 3, the limiting block 501 can prevent the control block 502 from excessively sliding and deviating from the predetermined working position, ensuring that the control block 502 moves within a safe and effective range, thereby ensuring the stability and reliability of the control of the cerebrospinal fluid flow rate.
[0021] Furthermore, two groups of limit blocks 504 are symmetrically arranged with respect to the central axis of the connecting block 505, and two groups of connecting blocks 505 are symmetrically arranged with respect to the central axis of the extrusion block 506. Through the arrangement of the limit blocks 504 and the connecting blocks 505, when in use, the limit blocks 504 are symmetrically arranged with respect to the central axis of the connecting block 505. Such a layout enables the connecting block 505 to move more balanced when subjected to thrust or tension, without displacement or twisting.
[0022] Furthermore, the extrusion block 506 forms a sliding structure with the electric push rod 508 through the push rod 507, and the inner wall size of the fixed groove 511 is consistent with the outer wall size of the rubber plug 512. Through the arrangement of the extrusion block 506, the push rod 507 and the electric push rod 508, when in use, when the electric push rod 508 pushes the push rod 507, the push rod 507 drives the extrusion block 506 to move toward the second drainage tube 3. By accurately controlling the position of the extrusion block 506 by the electric push rod 508, the precise adjustment of the cerebrospinal fluid flow rate can be achieved.
[0023] Furthermore, the outer wall size of the rotating shaft 517 is consistent with the inner wall size of the first rotating block 516, and two groups of limiting plates 518 are provided. Through the setting of the rotating shaft 517, the limiting plates 518 and the first rotating block 516, when in use, the limiting plates 518 can limit the axial movement of the rotating shaft 517 to prevent the rotating shaft 517 from escaping from the first rotating block 516, thereby ensuring the connection stability between the first rotating block 516 and the rotating shaft 517.
[0024] Further, the detection mechanism 4 includes a control board 401, an infrared sensor 402, a power supply 403, an information processing unit 404, a display panel 405 and a transmission line 406. The outer surface of the dropper 2 is fixedly connected with the control board 401, and one side surface of the control board 401 is fixedly connected with the infrared sensor 402, and one side surface of the control board 401 is fixedly connected with the power supply 403, and one side surface of the control board 401 is fixedly connected with the information processing unit 404, and one side surface of the control board 401 is fixedly connected with the display panel 405, and one side surface of the control board 401 is fixedly connected with the transmission line 406. Through the arrangement of the control board 401, the infrared sensor 402, the power supply 403, the information processing unit 404, the display panel 405 and the transmission line 406, when in use, the infrared sensor 402 is fixed on the outer surface of the dropper 2 as a key component for detection, and it uses the characteristics of infrared rays to detect To measure the flow rate of cerebrospinal fluid, the power supply 403 is fixed on the control board 401 to provide power support for the entire detection mechanism 4. It is connected to other components through the control board 401 to ensure that the infrared sensor 402, the information processing unit 404 and the display panel 405 can work normally. The information processing unit 404 receives the original detection data from the infrared sensor 402. The flow rate data processed by the information processing unit 404 will be displayed on the display panel 405 in a clear and easy-to-understand manner. The detection mechanism 4 can be connected to the control mechanism 5 through the transmission line 406, so that the detected flow rate data can be fed back to the control mechanism 5 in time, so that the control mechanism 5 can automatically adjust the degree of squeezing of the second drainage tube 3 according to the flow rate conditions, so as to achieve precise control of the cerebrospinal fluid flow rate. This data transmission function ensures the coordinated work of the entire cerebrospinal fluid drainage system and improves the intelligence and automation level of the system.
[0025] Furthermore, the power supply 403 is fixedly connected to the display panel 405 via the control board 401, and the power supply block 509 is fixedly connected to the control board 401 via the transmission line 406. Through the arrangement of the power supply block 509, the control board 401 and the transmission line 406, when in use, the power supply block 509 is fixedly connected to the control board 401 via the transmission line 406. The power supply block 509 mainly provides power to components in the control mechanism 5 such as the electric push rod 508. After the power supply block 509 is connected to the control board 401, it can be distributed by the control board 401 to components in the control mechanism 5 as needed.
[0026] Further, the replacement installation mechanism 6 includes a connecting head 601, a connecting groove 602, a connecting column 603, a drainage head 604, a fixing ring 605, a bolt 606 and a nut 607. The connecting head 601 is fixedly connected to the surface of one end of the second drainage tube 3. The connecting head 601 is provided with a connecting groove 602 on the inner surface of the connecting head 601. The connecting column 603 is threadedly connected to the inner surface of the connecting groove 602. The drainage head 604 is fixedly connected to the surface of one end of the connecting column 603. The fixing ring 605 is connected to the outer surface of the connecting head 601. The surface of the fixing ring 605 is penetrated by a bolt 606. The outer surface of the bolt 606 is threadedly connected to a nut 607. Through the arrangement of the connecting head 601, the connecting groove 602, the connecting column 603, the drainage head 604, the fixing ring 605, the bolt 606 and the nut 607, When in use, the connecting groove 602 on the inner side of the connecting head 601 is connected to the connecting column 603 by threads. This connection method is very convenient when installing the drainage head 604. When the drainage head 604 needs to be replaced, it is only necessary to screw the connecting column 603 into the connecting groove 602. A fixing ring 605 is connected to the outer side of the connecting head 601. After the connecting column 603 is screwed into the connecting groove 602, the bolt 606 is passed through the surface of the fixing ring 605, and the nut 607 is tightened. At this time, the fixing ring 605 will apply pressure to the connecting head 601 and the connecting column 603, further enhancing the stability of the connection. When there is a problem with the drainage head 604, it is only necessary to replace the drainage head 604 itself without replacing the entire drainage tube system, which greatly reduces the maintenance cost of the equipment. At the same time, the simple replacement operation also reduces the difficulty of maintenance.
[0027] Furthermore, the inner wall size of the connecting groove 602 is consistent with the outer wall size of the connecting column 603, and the outer surface of the connecting column 603 is provided with a thread. Through the setting of the connecting groove 602 and the connecting column 603, when in use, the inner wall size of the connecting groove 602 is consistent with the outer wall size of the connecting column 603. This design enables the connecting column 603 to be tightly inserted into the connecting groove 602. During the actual installation process, the precise coordination of the two can minimize the gap to the greatest extent and prevent cerebrospinal fluid from leaking at the connection site.
[0028] Furthermore, two groups of threaded holes are provided on the surface of the fixing ring 605, and the bolts 606 penetrate the two groups of threaded holes on the surface of the fixing ring 605. Through the arrangement of the bolts 606, the nuts 607 and the fixing ring 605, when in use, if the connection is not tight enough, the nuts 607 can be properly tightened to increase the pressure on the fixing ring 605. If the connection is too tight, it may cause damage to the connecting parts or affect the drainage effect. At this time, the nuts 607 can be properly loosened. This adjustability enables the replacement of the installation mechanism 6 to adapt to different working conditions and requirements, thereby improving the versatility and flexibility of the equipment.
[0029] Working principle: The infrared sensor 402 is a key component of the detection and is fixed on the outer surface of the dropper 2. It uses the characteristics of infrared rays to detect the flow rate of cerebrospinal fluid. The power supply 403 is fixed on the control board 401 to provide power support for the entire detection mechanism 4. It is connected to other components through the control board 401 to ensure that the infrared sensor 402, the information processing unit 404 and the display panel 405 can work normally. The information processing unit 404 receives the original detection data from the infrared sensor 402. The flow rate data processed by the information processing unit 404 will be displayed on the display panel 405 in a clear and easy-to-understand manner. The detection mechanism 4 can be connected to the control mechanism 5 through the transmission line 406, so that the detected flow rate data The control mechanism 5 can be fed back in time so that the control mechanism 5 can automatically adjust the squeezing degree of the second drainage tube 3 according to the flow rate to achieve accurate control of the cerebrospinal fluid flow rate. This data transmission function ensures the coordinated work of the entire cerebrospinal fluid drainage system and improves the intelligence and automation level of the system. The limiting block 501 fixed on the outer surface of the second drainage tube 3 mainly limits the moving range of the control block 502. The electric push rod 508 is powered by the power supply block 509. When it receives the control signal, it can push the push rod 507 to move. The push rod 507 drives the connecting block 505 and the limit block 504 connected thereto to slide in the limit groove 503, thereby causing the squeezing block 506 to apply pressure to the second drainage tube 3 or reduce the pressure to achieve the control. To control the flow rate of cerebrospinal fluid, when the flow rate needs to be reduced, the electric push rod 508 pushes the squeezing block 506 to squeeze the second drainage tube 3, reducing the effective cross-sectional area of the pipeline, increasing the fluid resistance, and thus reducing the flow rate. When the flow rate needs to be increased, the reverse operation is performed to reduce the pressure of the squeezing block 506 on the drainage tube. The smooth sliding of the limit block 504 in the limit groove 503 ensures the linearity and stability of the movement of the squeezing block 506, so that the second drainage tube 3 can be squeezed accurately to achieve precise adjustment of the cerebrospinal fluid flow rate. The cover plate 514 can provide certain support and protection for the components connected thereto to prevent external factors from interfering with and damaging the internal structure. In actual use environments, there may be some slight collisions or vibrations. 514 can play a certain protective role to ensure the normal operation of internal components and the stability of the connection. When it is necessary to open the cover 514 to check the inside, first take out the rubber plug 512 from the fixing groove 511 on the inner side of the stabilizing block 510, and then rotate the cover 514. The cover 514 is fixedly connected to the first rotating block 516 and the first fixing plate 515, and the second fixing plate 520 is fixedly connected to the control block 502. When the cover 514 is rotated, the first fixing plate 515 and the first rotating block 516 will rotate together. Since the first rotating block 516 is rotatably connected to the second rotating block 519 through the rotating shaft 517, the cover 514 can be rotated around the rotating shaft 517. This rotating design facilitates the inspection and maintenance of internal components.When it is necessary to check the working state of the electric push rod 508, the sliding state of the connecting block 505 and the limit block 504 and other internal components, these components can be directly observed by rotating the cover plate 514, without disassembling the entire control mechanism 5, thereby improving the maintenance efficiency. The connecting groove 602 on the inner side of the connecting head 601 is connected to the connecting column 603 by threads. This connection method is very convenient when installing the drainage head 604. When the drainage head 604 needs to be replaced, it is only necessary to screw the connecting column 603 into the connecting groove 602. A fixing ring 605 is connected to the outer side of the connecting head 601. After the connecting column 603 is screwed into the connecting groove 602, the bolt 606 is passed through the surface of the fixing ring 605, and the nut 607 is tightened. At this time, the fixing ring 605 will apply pressure to the connecting head 601 and the connecting column 603, further enhancing the stability of the connection. When there is a problem with the drainage head 604, it is only necessary to replace the drainage head 604 itself without replacing the entire drainage pipe system, which greatly reduces the maintenance cost of the equipment. At the same time, the simple replacement operation also reduces the difficulty of maintenance. ,
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A cerebrospinal fluid drainage flow rate control assembly, comprising a first drainage tube (1), characterized in that: A dropper (2) is fixedly connected to one end surface of the first drainage tube (1), a second drainage tube (3) is fixedly connected to one end surface of the dropper (2), a detection mechanism (4) is provided on the outer surface of the dropper (2), a control mechanism (5) is provided on the outer surface of the second drainage tube (3), and a replacement and installation mechanism (6) is provided on one end surface of the second drainage tube (3); The control mechanism (5) comprises a limiting block (501), a control block (502), a limiting groove (503), a limiting block (504), a connecting block (505), an extruding block (506), a push rod (507), an electric push rod (508), a power supply block (509), a stabilizing block (510), a fixing groove (511), a rubber plug (512), a connecting plate (513), a cover plate (514), a first fixing plate (515), a first rotating block (516), a rotating shaft (517), a limiting plate (518), a second rotating block (519), and a first A second fixing plate (520), the outer surface of the second drainage tube (3) is fixedly connected to a limiting block (501), the outer surface of the second drainage tube (3) is slidably connected to a control block (502), the inner surface of the control block (502) is provided with a limiting groove (503), the inner surface of the limiting groove (503) is slidably connected to a limiting block (504), one side surface of the limiting block (504) is fixedly connected to a connecting block (505), one side surface of the connecting block (505) is fixedly connected to a push rod (507), the push rod (507) 7) is slidably connected to an electric push rod (508), one end surface of the electric push rod (508) is fixedly connected to a power supply block (509), one end surface of the control block (502) is fixedly connected to a stabilizing block (510), the inner surface of the stabilizing block (510) is provided with a fixing groove (511), the inner surface of the fixing groove (511) is slidably connected to a rubber plug (512), one end surface of the rubber plug (512) is fixedly connected to a connecting plate (513), and one side surface of the connecting plate (513) is fixedly connected to a cover plate (5 14), a first fixed plate (515) is fixedly connected to a side surface of the cover plate (514), a first rotating block (516) is fixedly connected to a side surface of the first fixed plate (515), an inner side surface of the first rotating block (516) is rotatably connected to a rotating shaft (517), an end surface of the rotating shaft (517) is fixedly connected to a limiting plate (518), an outer side surface of the rotating shaft (517) is rotatably connected to a second rotating block (519), and an outer side surface of the second rotating block (519) is fixedly connected to a second fixed plate (520).
2. A cerebrospinal fluid extraction flow rate control component according to claim 1, characterized in that: The limiting blocks (501) are provided in two groups, and the inner wall size of the limiting groove (503) matches the outer wall size of the limiting block (504).
3. A cerebrospinal fluid extraction flow rate control component according to claim 1, characterized in that: The limit blocks (504) are arranged in two groups symmetrically about the central axis of the connecting block (505), and the connecting blocks (505) are arranged in two groups symmetrically about the central axis of the extrusion block (506).
4. A cerebrospinal fluid extraction flow rate control component according to claim 1, characterized in that: The extrusion block (506) forms a sliding structure with the electric push rod (508) via the push rod (507), and the inner wall size of the fixing groove (511) matches the outer wall size of the rubber stopper (512).
5. The cerebrospinal fluid extraction flow rate control component according to claim 1, characterized in that: The outer wall size of the rotating shaft (517) matches the inner wall size of the first rotating block (516), and two groups of the limiting plates (518) are provided.
6. A cerebrospinal fluid extraction flow rate control component according to claim 1, characterized in that: The detection mechanism (4) comprises a control board (401), an infrared sensor (402), a power supply (403), an information processing unit (404), a display panel (405) and a transmission line (406); the outer surface of the dropper (2) is fixedly connected to the control board (401); one side surface of the control board (401) is fixedly connected to the infrared sensor (402); one side surface of the control board (401) is fixedly connected to the power supply (403); one side surface of the control board (401) is fixedly connected to the information processing unit (404); one side surface of the control board (401) is fixedly connected to the display panel (405); and one side surface of the control board (401) is fixedly connected to the transmission line (406).
7. A cerebrospinal fluid extraction flow rate control component according to claim 6, characterized in that: The power source (403) is fixedly connected to the display panel (405) via the control board (401), and the power supply block (509) is fixedly connected to the control board (401) via the transmission line (406).
8. The cerebrospinal fluid extraction flow rate control component according to claim 1, characterized in that: The replacement and installation mechanism (6) comprises a connecting head (601), a connecting groove (602), a connecting column (603), a drainage head (604), a fixing ring (605), a bolt (606) and a nut (607); one end surface of the second drainage tube (3) is fixedly connected to the connecting head (601); an inner surface of the connecting head (601) is provided with a connecting groove (602); the inner surface of the connecting groove (602) is threadedly connected to the connecting column (603); one end surface of the connecting column (603) is fixedly connected to the drainage head (604); an outer surface of the connecting head (601) is connected to the fixing ring (605); a surface of the fixing ring (605) is penetrated by a bolt (606); and the outer surface of the bolt (606) is threadedly connected to the nut (607).
9. A cerebrospinal fluid extraction flow rate control component according to claim 8, characterized in that: The inner wall size of the connection groove (602) matches the outer wall size of the connection column (603), and the outer surface of the connection column (603) is provided with a thread.
10. The cerebrospinal fluid extraction flow rate control component according to claim 8, characterized in that: Two groups of threaded holes are provided on the surface of the fixing ring (605), and the bolts (606) penetrate the two groups of threaded holes provided on the surface of the fixing ring (605).