An intracranial pressure monitoring and cerebrospinal fluid drainage integrated nursing device

Abstract

The application belongs to the technical field of medical devices, and particularly discloses an intracranial pressure monitoring and cerebrospinal fluid drainage integrated nursing device, which comprises a mounting frame, a collecting mechanism is arranged on the mounting frame and used for collecting cerebrospinal fluid, a drainage tube is connected with the collecting mechanism through a three-way valve and used for draining cerebrospinal fluid, and a monitoring mechanism is arranged on one side of the collecting mechanism and connected with the drainage tube through the three-way valve. Through the action of the metal wire, the outer protective sleeve, the first moving sleeve and the second moving sleeve, the fixed tube between the drainage tube and the puncture tube can be supported and protected on the inner side and the outer side at the same time, the pipeline has the characteristics of resisting hard bending and resisting external compression or pulling, even if the fixed tube is pressed and slightly pulled, the lumen of the fixed tube will not collapse and form a hard bending angle, and the lumen can still remain open, so that the small movement of the head of the patient is not affected, and the monitoring and drainage effect is improved.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and specifically relates to an integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage. Background Technology

[0002] External ventricular drainage (EVD) is a common technique in neurosurgery and an important method for rescuing patients with severe conditions such as increased intracranial pressure, traumatic brain injury, cerebral edema, cerebral hemorrhage, and obstructive hydrocephalus. The purpose of EPD is to effectively drain blood and bloody cerebrospinal fluid from the ventricles, reduce intracranial pressure, alleviate cerebral edema, prevent or reduce the occurrence of cerebral vasospasm, minimize brain function damage, and improve the patient's clinical condition. Intracranial pressure monitoring (ICP) is an indispensable component of neurocritical care. ICP monitoring has been applied in the clinical management of patients with traumatic brain injury, subarachnoid hemorrhage, intracranial tumors, intracranial hemorrhage, cerebral infarction, hydrocephalus, central nervous system infections, and fulminant hepatic failure. Continuous monitoring of intracranial pressure (ICP) allows for observation of dynamic changes in intracranial pressure, guiding diagnosis, treatment, prognosis assessment, and adjustment of drainage rates.

[0003] In existing technology, after the drainage tube is passed through the intracranial cavity, it needs to be fixed along the scalp to the head. However, when fixing it, the patient's head compresses the drainage tube, causing it to bend and become compressed. This can lead to interruption of fluid flow within the tube and obstruction of pressure transmission, resulting in cessation of drainage and a sharp drop in pressure readings, which in turn affects the effectiveness of monitoring and drainage.

[0004] Therefore, it is necessary to invent an integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage, comprising a mounting frame and a collection mechanism on the mounting frame for collecting cerebrospinal fluid; The drainage tube, connected to the collection mechanism via a three-way valve, is used to drain cerebrospinal fluid; The monitoring device, located on one side of the collection device, is connected to the drainage tube via a three-way valve and is used to monitor intracranial pressure. A fixing mechanism is installed on the drainage tube. The fixing mechanism includes: A protective sleeve is attached to the bottom of the drainage tube. Inside the protective sleeve are a first movable sleeve and a second movable sleeve, which are used to protect the drainage tube. A transmission structure is provided between the first movable sleeve and the second movable sleeve, which is used to enable the first movable sleeve and the second movable sleeve to move simultaneously; Two mounting blocks are respectively set on the upper and lower sides of the protective sleeve to fix the first movable sleeve and the second movable sleeve.

[0007] Furthermore, the collection mechanism includes a scale, a collection tube, a collection bag, and a connecting tube. The scale is mounted on the mounting frame, and the collection tube is slidably mounted on the scale. The top of the collection tube is connected to a three-way valve through a connecting tube for connecting the connecting tube to the drainage tube. The collection bag is fixedly connected to the bottom of the collection tube.

[0008] Furthermore, the monitoring mechanism includes a fixed block, a pressure tube, an intracranial pressure sensor, a cable, and a controller. The fixed block is fixedly connected to one side of the scale, and a pressure tube is fixedly connected to the fixed block. An intracranial pressure sensor is installed inside the pressure tube. The intracranial pressure sensor is connected to the controller via a cable, and the top of the pressure tube is connected to a drainage tube via a three-way valve.

[0009] Furthermore, the bottom end of the drainage tube is connected to a fixing tube via an installation block. A puncture tube is threaded to the outside of the bottom of the fixing tube. Another installation block is located at the bottom of the fixing tube and at the top of the puncture tube. A protective sleeve is located on the outside of the fixing tube. A metal wire is fixedly connected to the inner wall of the fixing tube. The metal wire is arranged in a spiral to support the fixing tube.

[0010] Furthermore, an installation ring is fixedly connected to the inner wall of the protective sleeve. The transmission structure is connected to the first movable sleeve and the second movable sleeve respectively through the installation ring. The protective sleeve, the first movable sleeve and the second movable sleeve are all medical silicone corrugated tubes. A connector is provided between the first movable sleeve and the second movable sleeve. The connector is connected to the installation ring. There are two sets of transmission structure and connector. Each set of transmission structure and connector is arranged in a cross symmetrical arrangement with respect to the center of the protective sleeve.

[0011] Furthermore, the connector includes two magnetic blocks and a first spring. The two magnetic blocks are located on the upper and lower sides of the mounting ring, respectively. One end of the two magnetic blocks is magnetically attracted inside the mounting ring, and the other end of the two magnetic blocks is connected to the inner walls of the first movable sleeve and the second movable sleeve respectively through the first spring.

[0012] Furthermore, the mounting block at the top of the protective sleeve is magnetically attracted to the first movable sleeve. The mounting block at the bottom of the protective sleeve is provided with a limiting component, which includes a moving rod, a moving block, a second spring, and a sealing gasket. The moving rod is fixedly connected to the bottom of the second movable sleeve. The top of the mounting block at the bottom of the moving rod has a movable opening. The moving block is movably connected inside the mounting block at the bottom of the moving rod. The mounting block at the bottom of the moving rod has an installation opening near the inner wall of the fixed tube. One side of the moving block is connected to the inner wall of the mounting block through the second spring, and the other side is fixedly connected to the sealing gasket, which is located at the installation opening.

[0013] Furthermore, a round protrusion is provided at the bottom of the movable rod, and the movable rod is correspondingly provided with the round protrusion. The side of the movable rod near the second spring is inclined. A rotating block is rotatably connected to the top of the mounting block at the bottom of the movable rod. A moving opening is provided on the rotating block, and the moving opening is staggered from the movable opening.

[0014] Furthermore, the bottom of the mounting block at the bottom of the movable rod has an installation port, and a movable block is installed inside the installation port. One end of the movable block is slidably connected to the inner wall of the movable block, and the other end is inserted into the outer wall of the puncture tube. The two ends of the movable block are connected by a third spring.

[0015] Furthermore, an insert block is fixedly connected to the inner wall of the top of the rotating block. The insert block is located on the side of the moving port away from the moving block. The insert block is L-shaped, and one end of the bottom of the insert block is inserted into the moving block to limit the moving block.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention, through the action of the metal wire and the outer protective sleeve, the first movable sleeve, and the second movable sleeve, can simultaneously provide support and protection inside and outside the fixed tube between the drainage tube and the puncture tube. At the same time, it gives the tube the characteristics of resisting hard bends and resisting external pressure or traction. Even under pressure or slight traction, the lumen of the fixed tube will not collapse or form a hard bend, and it can still remain open, without affecting the patient's slight head movements. This prevents problems such as interruption of fluid flow in the drainage tube, cessation of drainage, and sudden drop in pressure values, thereby facilitating improved monitoring and drainage effects.

[0017] 2. The present invention can limit the first movable sleeve and the second movable sleeve respectively by using two mounting blocks, thereby improving the stability of the position of the first movable sleeve and the second movable sleeve after movement, thus improving the protective effect. In addition, the limiting component can improve the sealing and stability of the connection between the bottom end of the fixed tube and the puncture tube by the action of the movable block, and at the same time facilitate the replacement of the puncture tube, thus improving the effectiveness of the puncture tube. Attached Figure Description

[0018] Figure 1 This is a diagram showing the overall structure of an embodiment of the present invention. Figure 2 This is a structural diagram of the drainage tube and fixing mechanism according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the fixing tube, puncture tube, and fixing mechanism according to an embodiment of the present invention; Figure 4 This is a structural diagram of the mounting block, fixing tube, first movable sleeve, and second movable sleeve according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the protective sleeve according to an embodiment of the present invention; Figure 6 This is a structural diagram of the transmission structure, mounting ring, and connecting parts according to an embodiment of the present invention; Figure 7 This is a structural diagram of the fixing tube and mounting block according to an embodiment of the present invention; Figure 8 This is a cross-sectional view of the mounting block according to an embodiment of the present invention.

[0019] In the diagram: 1. Drainage tube; 2. Three-way valve; 3. Protective sleeve; 4. First movable sleeve; 5. Second movable sleeve; 6. First rack; 7. Gear; 8. Second rack; 9. Mounting block; 10. Scale; 11. Collection tube; 12. Fluid collection bag; 13. Connecting tube; 14. Pressure tube; 15. Controller; 16. Fixing tube; 17. Puncture tube; 18. Metal wire; 19. Mounting ring; 20. Magnetic block; 21. First spring; 22. Magnetic ring; 23. Moving rod; 24. Moving block; 25. Sealing gasket; 26. Movable port; 27. Movable block; 28. Insertion block; 29. ​​Rotating block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0021] This invention provides an integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage, such as... Figures 1 to 8As shown, the device includes a mounting frame, a collection mechanism, a drainage tube 1, a three-way valve 2, a detection mechanism, and a fixing structure. The collection mechanism, mounted on the mounting frame, is used to collect cerebrospinal fluid (CSF). The collection mechanism includes a scale 10, a collection tube 11, a effusion bag 12, and a connecting tube 13. The scale 10 is mounted on the mounting frame, and the collection tube 11 is slidably mounted on the scale 10 to adjust its height. The CSF drainage speed is controlled by hydraulic differential pressure. The top of the collection tube 11 is connected to the three-way valve 2 via the connecting tube 13, allowing the connecting tube 13 to communicate with the drainage tube 1. The effusion bag 12 is fixedly connected to the bottom of the collection tube 11 to store the drained CSF, completing the final collection. The drainage tube 1 is connected to the collection mechanism via the three-way valve 2 to drain CSF, providing a channel for CSF drainage. A monitoring mechanism is located on one side of the collection mechanism and is connected to the drainage tube 1 via the three-way valve 2 to monitor intracranial pressure. The monitoring mechanism includes a fixing block, a pressure tube 14, and an intracranial pressure sensor. The cable and controller 15 are fixedly connected to one side of the scale 10. A pressure tube filled with sterile saline is fixedly connected to the pressure tube to provide a pressure transmission medium for the intracranial pressure sensor. An intracranial pressure sensor is installed inside the pressure tube to sense the intracranial hydraulic pressure transmitted by the saline in the pressure tube 14. The intracranial pressure sensor is connected to the controller 15 via a cable. The top of the pressure tube is connected to the drainage tube 1 via a three-way valve 2. A fixing mechanism is installed on the drainage tube 1. The fixing mechanism includes a protective sleeve 3, a first movable sleeve 4, a second movable sleeve 5, a transmission structure, and mounting blocks 9. The protective sleeve 3 is connected to the bottom of the drainage tube 1. The first movable sleeve 4 and the second movable sleeve 5 are installed inside the protective sleeve 3 to protect the drainage tube 1. The transmission structure is installed between the first movable sleeve 4 and the second movable sleeve 5 to allow the first movable sleeve 4 and the second movable sleeve 5 to move simultaneously. Two mounting blocks 9 are respectively installed on the upper and lower sides of the protective sleeve 3 to fix the first movable sleeve 4 and the second movable sleeve 5.

[0022] The transmission structure includes a first rack 6, a gear 7, a second rack 8, and a fixed frame. Both the first movable sleeve 4 and the second movable sleeve 5 are provided with mounting slots. The first rack 6 is fixedly connected to the top of the first movable sleeve 4, and the bottom of the first rack 6 is fixedly connected to the mounting slot inside the second movable sleeve 5. The second rack 8 is fixedly connected to the top of the second movable sleeve 5, and the top of the second rack 8 is fixedly connected to the mounting slot inside the first movable sleeve 4. The gear 7 meshes between the first rack 6 and the second rack 8. The fixed frame is rotatably connected to the middle of the gear 7, and the fixed frame is fixedly connected to the mounting ring 19.

[0023] Pulling the first moving sleeve 4 causes the first rack 6 to move upward, which in turn drives the gear 7 to rotate along the fixed frame, causing the second moving sleeve 5 to drive the second rack 8 to move downward. When the first moving sleeve 4 moves to the top of the mounting block 9 at the top of the protective sleeve 3, the second rack 8 moves to the top of the mounting block 9 at the bottom of the protective sleeve 3. Through the transmission structure, the first moving sleeve 4 and the second moving sleeve 5 are simultaneously moved out of the protective sleeve 3 and fixed by the magnetic rings 22 and limiting members of the two mounting blocks 9, thus protecting the end of the drainage tube 1 near the outer side of the skull and preventing direct external pressure or scratches that could cause damage or blockage of the lumen. By sterilely pre-filling the drainage tube 1, the three-way valve 2, and the pressure tube 14 with physiological saline, no air bubbles remain, and the ventricle, drainage tube 1, and three-way valve 2 are formed. The pressure tube 14 has a closed hydraulic connection. After the bottom end of the drainage tube 1 is implanted into the patient's ventricle, the intracranial pressure of the cerebrospinal fluid directly acts on the saline solution in the drainage tube 1. Due to the incompressibility of the liquid, the pressure is transmitted without attenuation along the drainage tube 1 and the three-way valve 2 to the saline solution in the pressure tube 14. The intracranial pressure sensor in the pressure tube 14 senses the hydraulic pressure change, converts the mechanical pressure signal into a corresponding electrical signal, and transmits the electrical signal to the controller 15 via a cable. The controller displays and records the pressure change in real time, realizing real-time monitoring of intracranial pressure. During the monitoring process, the fixing structure protects and fixes the drainage tube 1 through the protective sleeve 3, the first moving sleeve 4, and the second sleeve to prevent the hydraulic transmission from being interrupted due to pipe bending or pressure, ensuring the stability of the monitoring signal. When the cerebrospinal fluid drainage relies on the natural hydraulic difference where the intracranial pressure is greater than the pressure in the collection mechanism, the drainage speed is precisely controlled by adjusting the height of the collection tube 11. At the same time, the collection tube 11 and the scale 10 enable the visual and quantitative collection of the drainage fluid.

[0024] like Figures 2 to 3 As shown, the bottom end of the drainage tube 1 is connected to a fixing tube 16 via a mounting block 9. A puncture tube 17 is threadedly connected to the bottom outer side of the fixing tube 16. Another mounting block 9 is located at the bottom end of the fixing tube 16 and at the top of the puncture tube 17. A protective sleeve 3 is located on the outside of the fixing tube 16. A metal wire 18 is fixedly connected to the inner wall of the fixing tube 16. The metal wire 18 is spirally arranged to support the fixing tube 16.

[0025] The spiral-shaped metal wire 18 provides support for the fixation tube 16, preventing it from bending or collapsing during puncture and ensuring the stability of the puncture path. Simultaneously, the spiral design retains the slight flexibility of the fixation tube 16, allowing it to naturally conform to the shape of the ventricle after implantation, avoiding damage to the ventricular wall from the rigid tube. The threaded connection between the clamp and the puncture tube 17 allows for quick replacement; different lengths and angles of the puncture tube 17 can be used depending on the patient's skull thickness and ventricular location, improving the device's adaptability. The protective sleeve 3, located on the outside of the fixation tube 16, provides external protection, preventing the fixation tube 16 from being scratched by sharp objects during operation, reducing pressure from scalp tissue on the fixation tube 16, and preventing deformation of the fixation tube 16 from affecting the support effect of the internal metal wire 18.

[0026] like Figures 3 to 6 As shown, the inner wall of the protective sleeve 3 is fixedly connected to an installation ring 19. The transmission structure is connected to the first movable sleeve 4 and the second movable sleeve 5 respectively through the installation ring 19. The protective sleeve 3, the first movable sleeve 4 and the second movable sleeve 5 are all medical silicone corrugated tubes. A connector is provided between the first movable sleeve 4 and the second movable sleeve 5. The connector is connected to the installation ring 19. There are two sets of transmission structures and connectors. Each set of transmission structures and connectors is arranged in a cross-shaped symmetrical arrangement with respect to the center of the protective sleeve 3. The connector includes two magnetic blocks 20 and a first spring 21. The two magnetic blocks 20 are located on the upper and lower sides of the installation ring 19 respectively. One end of the two magnetic blocks 20 is magnetically attracted inside the installation ring 19. The other end of the two magnetic blocks 20 is connected to the inner wall of the first movable sleeve 4 and the second movable sleeve 5 respectively through the first spring 21.

[0027] The medical silicone corrugated tube, with its free stretching, bending, and compression resistance, adapts to various head movements and buffers stress through corrugation under external pressure or traction, preventing tube bending from the outside. The protective sleeve 3 serves as the outer main protective carrier. The first movable sleeve 4 and the second movable sleeve 5 are nested inside the protective sleeve 3 and fit against the outside of the fixed tube 16, improving the protective effect. The mounting ring 19 is connected inside the protective sleeve 3, facilitating the installation and positioning of the two sets of connectors and ensuring the stable magnetic attraction of the magnetic block 20 of the connector. The symmetrically arranged connectors and transmission structure cause the first spring 21 to stretch and the magnetic block 20 to separate, moving the first movable sleeve 4 and the second movable sleeve 5 synchronously. After movement, the first movable sleeve 4 and the second movable sleeve 5 are constrained, ensuring stability after movement.

[0028] like Figures 4 to 8As shown, magnetic rings 22 are fixedly connected to the bottom of the mounting block 9 at the top of the protective sleeve and the top of the first movable sleeve 4. The magnetic rings 22 are magnetically attracted to each other, preventing the first movable sleeve 4 from shifting and falling off, reducing the entry of external dust and bacteria from the top gap between the protective sleeve 3 and the fixed tube 16, and improving sterility. A limiting component is provided inside the mounting block 9 at the bottom of the protective sleeve 3. The limiting component includes a moving rod 23, a moving block 24, a second spring, and a sealing gasket 25. The moving rod 23 is fixedly connected to the bottom of the second movable sleeve 5. An opening 26 is opened at the top of the mounting block 9 at the bottom of the moving rod 23. The moving block 24 is movably connected inside the mounting block 9 at the bottom of the moving rod 23. An installation opening is opened on the inner wall of the mounting block 9 at the bottom of the moving rod 23 near the fixed tube 16. One side of the moving block 24 is open to the mounting block 9. The second spring is connected to the inner wall of the mounting block 9, and the other side is fixedly connected to the sealing gasket 25. The sealing gasket 25 is located at the mounting port. The bottom of the moving rod 23 is provided with a round protrusion, and the moving rod 23 is set with the round protrusion corresponding to it. The side of the moving rod 23 near the second spring is inclined. The top of the mounting block 9 at the bottom of the moving rod 23 is rotatably connected to the rotating block 29. The rotating block 29 has a moving port. The top of the rotating block 29 and the bottom of the second moving sleeve 5 are magnetically connected by a magnetic ring 22. The moving port and the movable port 26 are staggered. The bottom end of the mounting block 9 at the bottom of the moving rod 23 has a mounting port. The movable block 27 is set in the mounting port. One end of the movable block 27 is slidably connected to the inner wall of the movable block 27, and the other end is inserted into the outer wall of the puncture tube 17. The two ends of the movable block 27 are connected by a third spring.

[0029] Move the inner first movable sleeve 4 and second movable sleeve 5 of the protective sleeve 3 downwards along the outside of the fixed tube 16, so that the first movable sleeve 4 fits against the upper section of the fixed tube 16 and the second movable sleeve 5 fits against the lower section of the fixed tube 16. At this time, the corrugated tubes of the protective sleeve 3, the first movable sleeve 4, and the second movable sleeve 5 are all in a naturally extended state. The first movable sleeve 4 is fixed by the magnetic ring 22 between the mounting block 9 and the first movable sleeve 4. At the same time, rotate the rotating block 29 on the top of the bottom mounting block 9 so that the moving port on the rotating block 29 is aligned with the movable port 26. The bottom of the second movable sleeve 5 is connected to the rotating block 29 by the magnetic ring 22. When the bottom moving rod 23 of the second moving sleeve 5 is inserted into the movable opening 26 of the bottom mounting block 9, the round protrusion at the bottom of the moving rod 23 slides along the inclined surface of the moving block 24, generating a horizontal squeezing force. This pushes the moving block 24 to slide horizontally towards the fixed tube 16, compressing the second spring. The moving block 24 drives the sealing gasket 25 to move synchronously, so that the sealing gasket 25 extends out of the mounting opening and fits tightly against the outer wall of the fixed tube 16. The elastic deformation of the silicone sealing gasket 25 is used to achieve a seal at the connection between the fixed tube 16 and the bottom mounting block 9.

[0030] like Figures 7 to 8As shown, a plug 28 is fixedly connected to the inner wall of the top of the rotating block 29. The plug 28 is located on the side of the moving port away from the moving block 24. The plug 28 is L-shaped. One end of the bottom of the plug 28 is inserted into the movable block 27 to limit the movable block 27.

[0031] The rotation of the rotating block 29 can drive the insertion block 28 to move. When the moving port on the rotating block 29 is aligned with the installation port, the insertion block 28 moves to one side of the movable block 27 and is inserted into it, thus limiting the movable block 27. This prevents the movable block 27 from sliding accidentally or the third spring from failing due to external forces such as violent head movements of the patient or collisions during clinical operations. This further improves the stability of the fixation of the puncture tube 17 and prevents the puncture tube 17 from loosening or shifting and affecting the drainage and monitoring pathway.

[0032] Working principle of this invention: Reference Figures 1 to 8 As shown, during use, according to the patient's clinical needs, the drainage tube 1 is connected to the fixed tube 16 via the mounting block 9 to complete the puncture end assembly. The protective sleeve 3 and the two mounting blocks 9 are initially placed on the outside of the fixed tube 16. Pulling the movable blocks 27 on both sides of the mounting block 9 at the bottom of the protective sleeve 3 causes the bottom movable blocks 27 to move away from the fixed tube 16 under the action of the third spring. The puncture tube 17 of the appropriate specification is then connected to the bottom outside of the fixed tube 16 via threads. The movable blocks 27 are then released, and under the action of the third spring, the movable blocks 27 are inserted into both sides of the puncture tube 17, thus limiting the puncture needle. Rotating the rotating block 29 causes the moving port to correspond with the movable port 26, and the rotating block 29 drives the insertion block 28 to rotate, causing the insertion block 28 to insert into the movable block 27. By fixing the movable block 27, the stability of the movable block 27 and the puncture needle is further improved. Then, pulling the first moving sleeve 4 causes the first rack 6 to move, which in turn drives the gear 7 to rotate, causing the second rack 8 to drive the second moving sleeve 5. As the first moving sleeve 4 moves downward, the two magnetic blocks 20 separate, and the first spring 21 is compressed. After the first moving sleeve 4 moves to the bottom of the mounting block 9 at the top of the protective sleeve 3, the magnetic ring 22 attracts the first moving sleeve 4 to the outside of the fixed tube 16. At the same time, under the action of the second rack 8, the second moving sleeve 5 drives the moving rod 23 through the mounting port and the moving port to the mounting block 9 at the top of the protective sleeve 3. The magnetic ring 22 connects the bottom of the second moving sleeve 5 with the top surface of the rotating block 29, limiting the position of the second moving sleeve 5. When the round protrusion at the bottom of the moving rod 23 slides along the inclined surface of the moving block 24, a horizontal squeezing force is generated, pushing the moving block 24 to slide horizontally towards the fixed tube 16, compressing the second spring. The moving block 24 drives the sealing gasket 25 to move synchronously, so that the sealing gasket 25 extends out of the mounting port and fits tightly against the outer wall of the fixed tube 16. The elastic deformation of the sealing gasket 25 achieves the seal at the connection between the fixed tube 16 and the bottom mounting block 9.

[0033] The collection tube 11 is slidably mounted on the scale 10 of the mounting bracket. One end of the connecting tube 13 receives the top of the collection tube 11, and the other end is connected to the three-way valve 2. The effusion bag 12 is fixed to the bottom of the collection tube 11, completing the assembly of the drainage collection end. The pressure tube 14 is connected to the drainage tube 1 through the three-way valve 2. The intracranial pressure sensor is pre-installed in the pressure tube 14. The cable connects the sensor to the controller 15. Aseptic operation is performed on the drainage tube 1, the three-way valve 2, the pressure tube 14, and the fixing tube 16. Sterile saline is injected into the tubing, and repeated degassing ensures no air bubbles remain in the tubing, forming a closed hydraulic connection between the ventricle, the drainage tube 1, the three-way valve 2, and the pressure tube 14. Ensure that the connecting tube 13 and collection tube 11 of the collection mechanism are pre-filled with physiological saline, and that all passages are sealed without leakage. Medical staff will insert the puncture tube 17 through the patient's skull and brain tissue to the ventricle. After implantation, the intracranial pressure of the cerebrospinal fluid will directly act on the physiological saline in the drainage tube 1. Due to the incompressibility of the liquid, the pressure will be transmitted without attenuation along the drainage tube 1 and the three-way valve 2 to the physiological saline in the pressure tube 14. The intracranial pressure sensor in the pressure tube 14 will sense the hydraulic pressure change, convert the mechanical pressure signal into a corresponding electrical signal, and transmit the electrical signal to the controller 15 through a cable. The controller will then display and record the pressure change in real time, thereby realizing real-time monitoring of intracranial pressure.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. An integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage, characterized in that, include: The mounting frame is equipped with a collection mechanism for collecting cerebrospinal fluid; The drainage tube (1) is connected to the collection mechanism via a three-way valve (2) for draining cerebrospinal fluid; The monitoring mechanism is located on one side of the collection mechanism. The monitoring mechanism is connected to the drainage tube (1) through a three-way valve (2) and is used to monitor intracranial pressure. A fixing mechanism is provided on the drainage tube (1), the fixing mechanism comprising: A protective sleeve (3) is connected to the bottom end of the drainage tube (1). The protective sleeve (3) is provided with a first movable sleeve (4) and a second movable sleeve (5) for protecting the drainage tube (1). A transmission structure is provided between the first movable sleeve (4) and the second movable sleeve (5) to enable the first movable sleeve (4) and the second movable sleeve (5) to move simultaneously; Two mounting blocks (9) are respectively set on the upper and lower sides of the protective sleeve (3) to fix the first movable sleeve (4) and the second movable sleeve (5).

2. The integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage according to claim 1, Its features are: The collection mechanism includes a scale (10), a collection tube (11), a collection bag (12), and a connecting tube (13). The scale (10) is mounted on a mounting frame. The collection tube (11) is slidably mounted on the scale (10). The top of the collection tube (11) is connected to a three-way valve (2) through the connecting tube (13) for connecting the connecting tube (13) to the drainage tube (1). The collection bag (12) is fixedly connected to the bottom of the collection tube (11).

3. The integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage according to claim 2, characterized in that: The monitoring mechanism includes a fixed block, a pressure tube (14), an intracranial pressure sensor, a cable and a controller (15). The fixed block is fixedly connected to one side of the scale (10). A pressure tube is fixedly connected to the fixed block. An intracranial pressure sensor is installed inside the pressure tube. The intracranial pressure sensor is connected to the controller (15) via a cable. The top of the pressure tube is connected to the drainage tube (1) via a three-way valve (2).

4. The integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage according to claim 3, characterized in that: The bottom end of the drainage tube (1) is connected to a fixed tube (16) via an installation block (9). The bottom outer side of the fixed tube (16) is threaded with a puncture tube (17). Another installation block (9) is located at the bottom end of the fixed tube (16) and at the top of the puncture tube (17). The protective sleeve (3) is located on the outside of the fixed tube (16). The inner wall of the fixed tube (16) is fixedly connected with a metal wire (18). The metal wire (18) is spirally arranged to support the fixed tube (16).

5. The integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage according to claim 4, characterized in that: The inner wall of the protective sleeve (3) is fixedly connected to an installation ring (19). The transmission structure is connected to the first movable sleeve (4) and the second movable sleeve (5) respectively through the installation ring (19). The protective sleeve (3), the first movable sleeve (4) and the second movable sleeve (5) are all medical silicone corrugated tubes. A connector is provided between the first movable sleeve (4) and the second movable sleeve (5). The connector is connected to the installation ring (19). The transmission structure and the connector are provided in two sets. Each set of the transmission structure and the connector is arranged in a cross-shaped symmetrical arrangement with respect to the center of the protective sleeve (3).

6. The integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage according to claim 5, characterized in that: The connector includes two magnetic blocks (20) and a first spring (21). The two magnetic blocks (20) are located on the upper and lower sides of the mounting ring (19) respectively. One end of the two magnetic blocks (20) is magnetically attracted inside the mounting ring (19), and the other end of the two magnetic blocks (20) is connected to the inner wall of the first movable sleeve (4) and the second movable sleeve (5) respectively through the first spring (21).

7. The integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage according to claim 6, characterized in that: The mounting block (9) at the top of the protective sleeve (3) is attracted to the first movable sleeve (4). The mounting block (9) at the bottom of the protective sleeve (3) is provided with a limiting component, which includes a moving rod (23), a moving block (24), a second spring and a sealing gasket (25). The moving rod (23) is fixedly connected to the bottom of the second movable sleeve (5). The top of the mounting block (9) at the bottom of the moving rod (23) is provided with an opening (26). The moving block (24) is movably connected inside the mounting block (9) at the bottom of the moving rod (23). The mounting block (9) at the bottom of the moving rod (23) is provided with an installation opening near the inner wall of the fixed tube (16). One side of the moving block (24) is connected to the inner wall of the mounting block (9) through the second spring, and the other side is fixedly connected to the sealing gasket (25). The sealing gasket (25) is located at the installation opening.

8. The integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage according to claim 7, characterized in that: The bottom of the movable rod (23) is provided with a round protrusion, and the movable rod (23) is provided in correspondence with the round protrusion. The side of the movable rod (23) near the second spring is inclined. The top of the mounting block (9) at the bottom of the movable rod (23) is rotatably connected to a rotating block (29). The rotating block (29) is provided with a moving opening, and the moving opening is offset from the movable opening (26).

9. The integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage according to claim 8, characterized in that: The bottom of the mounting block (9) at the bottom of the moving rod (23) has an installation port, and a movable block (27) is set in the installation port. One end of the movable block (27) is slidably connected to the inner wall of the movable block (27), and the other end is inserted into the outer wall of the puncture tube (17). The two ends of the movable block (27) are connected by a third spring.

10. The integrated nursing device for intracranial pressure monitoring and cerebrospinal fluid drainage according to claim 9, characterized in that: The rotating block (29) has a fixedly connected insert (28) on the top inner wall. The insert (28) is located on the side of the moving port away from the moving block (24). The insert (28) is L-shaped. One end of the bottom of the insert (28) is inserted into the moving block (27) to limit the moving block (27).

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