Head subcutaneous hydrops drainage device

Abstract

The invention discloses a head subcutaneous effusion drainage device which comprises a drainage needle (10) and a drainage tube (20). Wherein the drainage needle comprises a hollow flexible needle body (14) and a connecting device (12) located at one end of the flexible needle body, the connecting device is provided with a connecting cavity (13) communicated with an inner cavity of the needle body, and the connecting device is further provided with a separating film (15) for sealing the connecting cavity; a mounting part (22) is arranged at one end of the drainage tube, the mounting part comprises a mounting cavity (23) and a connecting needle (24) extending out of the mounting cavity, and a connecting port (25) communicated with the interior of the drainage tube is formed in the side wall of the connecting needle; wherein the connecting device can be in threaded connection with the mounting part, so that the connecting cavity and the mounting cavity form a closed drainage cabin, and the connecting device can drive the connecting needle to pierce the separation membrane. By means of the design mode, the sealing performance of connection between the drainage needle and the drainage tube is guaranteed, effusion is prevented from leaking out, meanwhile, effusion backflow is prevented, and the risk that the head of a patient is infected is reduced.

Description

Technical Field

[0001] This application relates to a device for draining fluid accumulation, and more particularly to a device for draining subcutaneous fluid accumulation in the head. Background Technology

[0002] In clinical treatment, subcutaneous effusion of the scalp is a common complication after neurosurgical craniocerebral tumor surgery. If the effusion cannot be drained in a timely and effective manner, it can easily cause subcutaneous pain and infection in the patient's head, thus affecting wound healing.

[0003] Currently, the common method for draining subcutaneous effusion in the head involves inserting an indwelling intravenous catheter into the patient's head, and then connecting the catheter to a drainage bag after additional modifications. However, this method has certain drawbacks. First, the procedure is too cumbersome, and the connection between the catheter and the drainage bag is not very airtight, which can easily increase the risk of infection for the patient. Second, the traditional indwelling intravenous catheter is too thin and short to easily penetrate into the area of ​​subcutaneous effusion accumulation in the patient's head, resulting in incomplete drainage. In addition, the fixation method for the catheter in the patient's head is relatively simple and not secure, which can easily lead to unplanned needle removal during the drainage process, causing drainage interruption. Summary of the Invention

[0004] To address the aforementioned issues, this application discloses a subcutaneous effusion drainage device for the head. This device features a special connecting device on the drainage needle and a mounting part on the drainage tube that mates with the connecting device. This connection method enhances the sealing of the connection between the drainage needle and the drainage tube. Without affecting the drainage of effusion, it not only prevents leakage of effusion during the drainage process but also blocks the entry of external contaminants, reducing the risk of head infection for the patient. Furthermore, the drainage needle can be directly connected to a drainage bag or other effusion recovery device through the drainage tube, making the connection method more convenient, faster, more stable, and safer.

[0005] To achieve the above objectives, this application adopts the following technical solution: This application provides a subcutaneous effusion drainage device for the head, comprising a drainage needle and a drainage tube. The drainage needle includes a hollow, flexible needle body and a connecting device at one end of the flexible needle body. The connecting device has a connecting cavity communicating with the internal cavity of the needle body, and also includes a separator membrane to seal the connecting cavity. One end of the drainage tube has an installation portion, which includes an installation cavity and a connecting needle extending from the installation cavity. The side wall of the connecting needle has a connecting port communicating with the interior of the drainage tube. The connecting device and the installation portion are threaded together to form a closed drainage chamber, and the connecting needle can puncture the separator membrane.

[0006] In actual use, the drainage needle structure of this device is pre-positioned in the area of ​​fluid accumulation in the patient's head. Then, a connecting device and an mounting structure connect the drainage tube and the drainage needle to form a sealed drainage chamber, improving the tightness of the connection between the drainage needle and the drainage tube. This prevents leakage of fluid during drainage. Furthermore, the connecting device contains a septum to block external bacteria, preventing them from entering the patient's head through the drainage needle and causing infection. The mounting part of the drainage tube is equipped with a connecting needle, the side wall of which has a connection port, allowing it to pierce the septum and achieve drainage with the septum in place. While connecting the drainage needle to the drainage tube, it does not affect the drainage of accumulated fluid through the drainage needle into the drainage tube to complete the drainage operation. In addition, when the operator connects the drainage needle to the drainage tube on the patient's head by piercing the septum with the connecting needle, it may require a lot of force. In this process, the drainage needle on the patient's head can easily fall off, causing bleeding or infection. However, the mounting part and the connecting device of this device are set to a threaded connection. Its rotational connection can drive the connecting needle to pierce the septum, making the connection more convenient and faster. Moreover, the threaded connection can improve the tightness of the connection between the drainage needle and the drainage tube.

[0007] In one illustrative embodiment of a subcutaneous effusion drainage device for the head, the end of the needle body opposite the connecting cavity is the puncture end, which is provided with several drainage holes that connect to the interior of the needle body. This design ensures that the effusion can enter the interior of the needle body through several drainage holes, thus diverting the effusion and avoiding the problems of slow or incomplete drainage that can occur with only a single drainage hole.

[0008] In one illustrative embodiment of a subcutaneous effusion drainage device for the head, several drainage holes include several side holes and several inclined holes. The opening direction of each side hole is perpendicular to the side wall of the needle body, and the opening direction of each inclined hole is inclined to the side wall of the needle body, tilting towards the puncture end. The opening area of ​​the inclined hole is larger than that of the side holes. This design achieves effusion diversion through the arrangement of several side holes. The arrangement of several inclined holes not only diverts the effusion but also allows flocculent tissue in the effusion to pass through due to their large opening area, preventing blockage of the drainage holes during the drainage process, which could lead to slow or incomplete drainage. The inclined holes, tilted towards the puncture end, guide the flow direction of the effusion, thereby increasing the drainage speed.

[0009] In one illustrative embodiment of a subcutaneous effusion drainage device for the head, the device further includes a positioning plate. One side of the positioning plate has an adhesive surface, and the opposite side has a fixing strap mounting portion. This design allows the drainage needle to be adhered to the patient's head via the adhesive surface of the positioning plate, while the fixing strap passes through the fixing strap mounting portion for secondary fixation to the patient's head. This makes the drainage needle more secure and reliable, preventing drainage interruption caused by the drainage needle falling off the patient's head and reducing the risk of unplanned needle removal.

[0010] In one illustrative embodiment of the subcutaneous effusion drainage device for the head, it further includes a puncture guide device. The puncture guide device includes a handle and a guide wire connected to the handle. The guide wire can pass through the septum to reach the interior of the needle body and extend out of the needle body. This structure, with its separately designed puncture guide device, can be adapted to the subcutaneous effusion drainage device for the head. When the drainage needle is inserted into the patient's head, the guide wire can guide the puncture of the drainage needle, ensuring that the drainage needle can be safely inserted into the effusion area of ​​the patient's head and avoiding damage to the patient's brain tissue during the insertion process.

[0011] In one illustrative embodiment of a subcutaneous scalp drainage device, the device further includes a drainage bag. A connecting tube is provided on one side of the drainage bag, connecting to the other end of the drainage tube opposite to the end where the mounting portion is located. This design, which connects the drainage tube of the device to the drainage bag, ensures that the drained fluid can be collected into the drainage bag and properly treated. Furthermore, compared to existing methods that modify an indwelling needle and connect it to the drainage bag, connecting the drainage needle and drainage bag via the drainage tube is more convenient, faster, safer, and more stable.

[0012] In one illustrative embodiment of the subcutaneous fluid drainage device for the head, the connecting tube and the drainage tube are connected with a flat end. This flat-end connection design makes the connection between the two more secure, preventing external contamination and leakage of the fluid.

[0013] In one illustrative embodiment of the subcutaneous effusion drainage device for the head, it also includes a graduated cup. A drainage port and a three-way valve are respectively located at opposite ends of the graduated cup. The drainage tube is connected to the drainage tube, and the three-way valve is connected to the connecting tube of the drainage bag. This design with a graduated cup ensures that the amount of subcutaneous effusion drained from the patient's head can be controlled during the drainage process, avoiding excessive drainage that could cause low intracranial pressure and ensuring patient safety.

[0014] In one illustrative embodiment of the subcutaneous fluid drainage device for the head, the puncture end of the needle is provided with a puncture bevel. This design allows the puncture bevel to guide the puncture during insertion, improving the success rate of the puncture.

[0015] In one illustrative embodiment of a subcutaneous effusion drainage device for the head, the outer wall of the drainage needle is provided with graduation lines. This design allows the depth of puncture to be determined by the graduation lines when the needle enters the patient's head, facilitating future observation of the drainage needle's placement and determining whether it has shifted.

[0016] The following description, in a clear and easy-to-understand manner and with reference to the accompanying drawings, will further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of a subcutaneous fluid drainage device for the head. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram illustrating a possible embodiment of a subcutaneous fluid drainage device for the head.

[0018] Figure 2 A schematic diagram illustrating one embodiment of the connecting device.

[0019] Figure 3 A schematic diagram illustrating another illustrative embodiment of the connecting device.

[0020] Figure 4 A schematic diagram illustrating one possible embodiment of the mounting section.

[0021] Figure 5 This is a schematic diagram illustrating one possible embodiment of the connection device after it is connected to the mounting part.

[0022] Figure 6 A cross-sectional view illustrating an illustrative embodiment after the connecting device is connected to the mounting part.

[0023] Figure 7 A schematic diagram illustrating one possible implementation of the puncture tip.

[0024] Figure 8 A schematic diagram illustrating one possible embodiment of the fixing plate.

[0025] Figure 9 A schematic diagram illustrating one embodiment of a puncture guidance device.

[0026] Figure 10 A schematic diagram illustrating a possible embodiment of a puncture guidance device.

[0027] Figure 11 This is a schematic diagram illustrating another embodiment of a subcutaneous fluid drainage device for the head.

[0028] Figure 12 This is a schematic diagram illustrating another embodiment of the subcutaneous fluid drainage device for the head.

[0029] Label Explanation 10 drainage needles 12 connecting devices 13 connecting cavity 14 needles 15 Separator Membrane 16 connecting ports 17 puncture tip 18 side holes 19 Inclined Holes 20 drainage tubes 22 Installation Department 23 Installation cavity 24 connecting pins 25 connectors 30 positioning plate 31 Installation Department 40 puncture guiding instruments 42 handheld parts 44 guidewire 50 drainage bags 51 connecting pipe 60-degree cup 61 diversion port 62 Three-way Valve 70 Drainage Chamber Detailed Implementation To provide a clearer understanding of the technical features, objectives, and effects of this application, specific embodiments of this application are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.

[0030] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0031] Figure 1 This is a schematic diagram illustrating a possible embodiment of a subcutaneous fluid drainage device for the head. (See diagram for example.) Figure 1As shown, the subcutaneous effusion drainage device for the head includes a drainage needle 10 and a drainage tube 20. The drainage needle 10 includes a hollow, flexible needle body 14 and a connecting device 12 located at one end of the flexible needle body 14. In the actual product, the needle body 14 is a structure that punctures into the subcutaneous effusion accumulation area of ​​the patient's head and can be left in place on the patient's head if necessary. Its length is typically set to 50 mm, and its inner diameter to 1.1 mm. Of course, the length and inner diameter can be set according to actual needs. The outer wall of the needle body 14 is provided with graduation lines to determine the puncture depth and to facilitate future observation of the placement of the drainage needle 10 and to determine if it has shifted. Figure 2 As shown, the connecting device 12 has a connecting cavity 13 that connects to the internal cavity of the needle body 14, and the connecting device 12 is also provided with a separating membrane 15. The separating membrane 15 is a valve-type structure with a connecting port 16 in the middle. When not in use, the connecting port 16 is closed, and when in use, puncture is allowed through the connecting port 16. Its material can be PE material. Figure 3 As shown, in the actual product design, the separator 15 is disposed inside the connecting cavity 13, which can seal the connecting cavity 13. like Figure 4 As shown, combined with Figure 1 It is known that one end of the drainage tube 20 is provided with a mounting part 22, which includes a mounting cavity 23 and a connecting needle 24 extending from the mounting cavity 23. The outwardly extending end of the connecting needle 24 is a pointed tip, and the side wall of the connecting needle 24 has a connecting port 25 that communicates with the inside of the drainage tube 20. The connecting ports 25 can be opened on the two opposite side walls of the connecting needle 24 to ensure smooth drainage, and the number of connecting ports 25 can be set according to actual needs. The connecting device 12 has an external thread structure on the outside of the connecting cavity 13, and an internal thread structure on the inside of the mounting cavity 23 of the mounting part 22, so that the connecting device 12 and the mounting part 22 can be threadedly connected. The specific clinical usage of the drainage needle 10 and the drainage tube 20 is as follows: In actual use, the operator first inserts the needle body 14 of a drainage needle 10 into the patient's head tissue and places it in the area of ​​subcutaneous fluid accumulation in the patient's head. Then, holding the connecting device 12 of the drainage needle 10 exposed outside the head, the operator aligns the mounting part 22 of a drainage tube 20 with the connecting device 12. Since the mounting part 22 and the connecting device 12 can be threaded together, the operator can rotate the mounting part 22 with the other hand to connect it to the connecting device 12 of the drainage needle 10, i.e. Figure 5 , Figure 6As shown, during the rotational connection process, the connecting needle 24 of the drainage tube 20 punctures through the communication port 16 of the septum 15 of the drainage needle 10, and the connecting cavity 13 and the installation cavity 23 form a closed drainage chamber 70. Then, the drainage needle 10 is connected to the drainage tube 20. At this time, the internal cavity of the needle body 14 is connected to the internal cavity of the drainage tube 20, and the accumulated fluid can enter the drainage tube 20 from the needle body 14 through the connecting port 25 of the connecting needle 24. Figure 6 (In the direction indicated by the middle arrow) to achieve drainage of the accumulated fluid. The other end of the drainage tube 20 can also be connected to an external fluid recovery device, such as a drainage bag, so that the accumulated fluid can be recovered to the drainage bag through the drainage tube 20. The other end of the drainage tube 20 can also be connected to a syringe to help with drainage.

[0032] The above-described method of connecting a drainage needle 10 to a drainage tube 20 by setting a connecting device 12 and an installation part 22 ensures that while the drainage needle 10 and the drainage tube 20 are connected, a sealed drainage chamber is formed between them to improve the tightness of the connection between the drainage needle 10 and the drainage tube 20, thereby avoiding leakage of the accumulated fluid during the drainage process. Moreover, the air pressure inside the drainage chamber 70 is lower than that in the subcutaneous fluid accumulation area of ​​the patient's head, which can help drain the accumulated fluid. The connecting device 12 is also provided with a separator membrane 15, which can block external bacteria and prevent bacteria from entering the patient's head through the drainage needle 10 and causing infection. Correspondingly, the installation part 22 of the drainage tube 20 is provided with a connecting needle 24. The side wall of the connecting needle 24 also has a connecting port 25, which allows it to puncture through the connecting port 16 of the separator membrane 15. This allows the drainage needle 10 with the separator membrane 15 to be connected to the drainage tube 20 without affecting the flow of the accumulated fluid through the drainage needle 10 into the drainage tube 20 to complete the drainage operation. Furthermore, when the operator connects the drainage needle 10 to the drainage tube 20 of the patient's head by puncturing the diaphragm 15 through the communication port 16 with the connecting needle 24, it may require considerable force. During this process, the drainage needle 10 of the patient's head can easily fall off, causing bleeding or infection of the head. The connecting device 12 and the mounting part 22 are set to a threaded connection. The rotational connection can drive the connecting needle 24 to puncture the diaphragm 15 through the communication port 16, making the connection more convenient and faster. Moreover, the threaded connection can improve the tightness of the connection between the drainage needle 10 and the drainage tube 20.

[0033] like Figure 7 As shown, combined with Figure 1 The other end of the needle body 14 of the drainage needle 10 relative to the connecting cavity 13 is the puncture end 17. The end of the puncture end 17 can be provided with a puncture bevel to help guide the puncture of the needle body 14. The puncture end 17 is provided with several drainage holes, which are connected to the interior of the needle body 14. In actual product design, the diameter of the drainage holes can be 1mm to 2mm, and the shape can be circular, elliptical, etc., which can be adjusted according to actual needs.

[0034] like Figure 7 As shown, in one illustrative embodiment of the puncture end 17, the drainage holes include several side holes 18 and several inclined holes 19. The opening direction of the several side holes 18 is perpendicular to the side wall of the needle body 14, while the opening direction of the several inclined holes 19 is inclined to the side wall of the needle body 14, and its opening direction is inclined towards one side of the puncture end 17. The opening area of ​​the inclined hole 19 is larger than the opening area of ​​the side holes 18.

[0035] In actual use, the purpose of having several drainage holes at the puncture end 17 is to allow the effusion to enter the needle body 14 through several drainage holes, thereby diverting the effusion and avoiding situations where drainage is too slow or incomplete due to having only a single drainage hole. Furthermore, when draining effusion from a patient's head, the effusion often contains large flocculent tissue. Therefore, having several inclined holes 19 with a large opening area allows larger flocculent tissue to enter the needle body 14 through the inclined holes 19, preventing the drainage holes from being blocked and causing slow drainage. Moreover, the inclined holes 19 are inclined towards the puncture end 17, and the inclined surface guides the flow direction of the effusion and increases the drainage speed.

[0036] To ensure that the drainage needle 10, which has been placed in the patient's head beforehand, is securely fixed to the patient's head, then... Figure 8 As shown, the subcutaneous fluid drainage device for the head also includes a positioning plate 30. One side of the positioning plate 30 has an adhesive surface, that is, one side of the bottom surface of the positioning plate 30 shown in the figure has an adhesive surface, which is not shown in the figure. The other side of the positioning plate 30 has a fixing strap mounting part 31.

[0037] In actual products, the fixing strap mounting base 32 can extend away from the positioning plate 30, and can be a positioning hole through which the fixing strap passes, combined with Figure 2 , Figure 3 As shown, the positioning plate 30 is set on the connecting device 12. When the operator places the drainage needle 10 on the patient's head, it can be attached to the patient's head through the adhesive surface on one side of the positioning plate 30. Then, a fixing strap is passed through the fixing strap mounting part 31 on the other side of the positioning plate 30. The fixing strap is used to fix the drainage needle 10 to the patient's head for a second time, so that the drainage needle 10 is fixed more firmly and reliably, preventing the drainage needle 10 from falling off the patient's head and causing drainage interruption, thereby reducing the risk of unplanned needle removal.

[0038] The subcutaneous fluid drainage device for the head also includes a puncture guide instrument 40, such as... Figure 9 As shown, the puncture guiding device 40 includes a handle 42 and a guide wire 44 connected to the handle 42. The outer diameter of the guide wire 44 is smaller than the inner diameter of the needle body 14, such as... Figure 10As shown, the guidewire 44 can pass through the communication port 16 of the septal membrane 15 to reach the interior of the needle body 14 and extend out of the needle body 14. In actual clinical use, the operator first passes the guidewire 44 of the puncture guiding device 40 through the septal membrane 15 of the connecting device 12 and out of the needle body 14. The operator controls the puncture direction of the drainage needle 10 with the manipulator 42, guiding the drainage needle 10 to accurately puncture the area of ​​subcutaneous fluid accumulation in the patient's head. After completion, the guidewire 44 is withdrawn, and the communication port 16 of the septal membrane 15 is closed. At this time, the connecting needle 24 of the mounting part 22 of the drainage tube 20 is punctured through the communication port 16 of the septal membrane 15, thereby connecting the drainage tube 20 to the drainage needle 10.

[0039] In one illustrative embodiment of a subcutaneous fluid drainage device for the head, such as Figure 11 As shown, the subcutaneous fluid drainage device for the head also includes a drainage bag 50. A connecting tube 51 is provided on one side of the drainage bag 50, connecting to the other end of the drainage tube 20 opposite to the end with the mounting part 22. This allows the drainage tube 20 to be connected to the drainage bag 50 during actual use, ensuring that the accumulated fluid can be recovered into the drainage bag 50. Compared to the existing method that requires modification of the indwelling needle to connect to the drainage bag 50, this method of connecting the drainage needle 10 and the drainage bag 50 via the drainage tube 20 is more convenient, faster, safer, and more stable. To ensure a tighter connection between the drainage tube 20 and the drainage bag 50, a flat-end connection is used, meaning a sealing ring is provided on the connecting tube 51 of the drainage bag 50, making the connection more stable and preventing external contamination and leakage of the accumulated fluid.

[0040] In another illustrative embodiment of the subcutaneous fluid drainage device for the head, such as Figure 12 As shown, the subcutaneous effusion drainage device for the head also includes a graduated cup 60. The graduated cup 60 has a drainage port 61 and a three-way valve 62 at opposite ends. The drainage port 61 connects to the drainage tube 20, and the three-way valve 62 connects to the connecting tube 51 of the drainage bag 50. In clinical use, the drainage needle 10, drainage tube 20, graduated cup 60, and drainage bag 50 are connected in this way. The graduated cup 60 is marked with graduations. When the drainage fluid flows into the graduated cup 60 and reaches 50ml, the operator manually opens the three-way valve 62 to transfer the fluid from the graduated cup 60 into the drainage bag 50, and then closes the three-way valve 62. This process is repeated, opening the three-way valve to drain fluid every 50ml. This method ensures that the amount of subcutaneous effusion drained from the patient's head is controlled during the drainage process, avoiding excessive drainage that could cause low intracranial pressure and thus ensuring the patient's safety.

[0041] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0042] It should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0043] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of this application and are not intended to limit the scope of protection of this application. All equivalent implementations or modifications made without departing from the spirit of the art of this application, such as combinations, divisions or repetitions of features, should be included within the scope of protection of this application.

Claims

1. A device for draining subcutaneous fluid from the head, characterized in that, It includes: The drainage needle (10) includes a hollow and flexible needle body (14) and a connecting device (12) located at one end of the needle body (14). The connecting device (12) has a connecting cavity (13) that communicates with the internal cavity of the needle body (14). The connecting device (12) is also provided with a separator (15) that closes the connecting cavity (13). A drainage tube (20) is provided with an installation part (22) at one end. The installation part (22) includes an installation cavity (23) and a connecting pin (24) extending from the installation cavity (23). The side wall of the connecting pin (24) is provided with a connecting port (25) that communicates with the inside of the drainage tube (20). The connecting device (12) and the mounting part (22) can be threaded together so that the connecting cavity (13) and the mounting cavity (23) form a closed drainage chamber, and can drive the connecting needle (24) to puncture the separator membrane (15).

2. The subcutaneous fluid drainage device for the head according to claim 1, characterized in that, The other end of the needle body (14) relative to the connecting cavity (13) is the puncture end (17), and the puncture end (17) is provided with several drainage holes, which are connected to the interior of the needle body (14).

3. The subcutaneous fluid drainage device for the head according to claim 2, characterized in that, The plurality of drainage holes include: Several side holes (18), the opening direction of each side hole (18) is perpendicular to the side wall of the needle body (14); Several inclined holes (19) are provided, the opening direction of each inclined hole (19) is inclined to the side wall of the needle body (14), and the opening direction is inclined to the side of the puncture end (17). The opening area of ​​the inclined hole (19) is larger than the opening area of ​​the side hole (18).

4. The subcutaneous fluid drainage device for the head according to claim 1, characterized in that, The subcutaneous fluid drainage device for the head also includes a positioning plate (30), which is disposed on the connecting device (12) shown. One side of the positioning plate (30) has an adhesive surface, and the other side of the positioning plate (30) is provided with a fixing strap mounting part (31).

5. The subcutaneous fluid drainage device for the head according to claim 1, characterized in that, It also includes a puncture guide device (40), which includes a handle (42) and a guide wire (44) connected to the handle (42), the guide wire (44) being able to pass through the septum (15) to reach the interior of the needle body (14) and extend out of the needle body (14).

6. The subcutaneous fluid drainage device for the head according to claim 1, characterized in that, The subcutaneous fluid drainage device for the head also includes a drainage bag (50), on one side of which a connecting tube (51) is provided, and the connecting tube (51) is connected to the other end of the drainage tube (20) opposite to the mounting part (22).

7. The subcutaneous fluid drainage device for the head according to claim 6, characterized in that, The connecting tube (51) and the drainage tube (20) are connected with a flat end.

8. The subcutaneous fluid drainage device for the head according to claim 7, characterized in that, The subcutaneous fluid drainage device for the head also includes a graduated cup (60), with a guide port (61) and a three-way valve (62) respectively provided at opposite ends of the graduated cup (60). The guide port (61) is connected to the drainage tube (20), and the three-way valve (62) is connected to the connecting tube (51) of the drainage bag (50).

9. The subcutaneous fluid drainage device for the head according to claim 2, characterized in that, The end of the puncture end (17) of the needle body (14) is provided with a puncture bevel.

10. The subcutaneous fluid drainage device for the head according to claim 1, characterized in that, The drainage needle (10) has a scale line on the outer wall of the needle body (14).

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