An intraoperative drainage device for neurosurgery

Abstract

The application discloses a kind of neurosurgery in operation drainage device, including support frame, the support frame top is fixedly connected with support plate, the support plate top side is equipped with collecting bottle, the collecting bottle top is inserted with flow guide pipe, the flow guide pipe is fixedly connected with drainage tube away from collecting bottle one end, the drainage tube is equipped with insertion tube away from flow guide pipe one end, the drainage tube and insertion tube between fixedly connected with transition pipe, the transition pipe outer surface is equipped with for separating the separation component of patient tissue and insertion tube, the drainage tube is equipped with for cutting tissue block cutting component.The application is equipped with separation component, when pulling out insertion tube, insertion tube and patient skin muscle and so on can be separated from tissue, facilitate pulling out insertion tube, reduce the pain of patient when pulling out insertion tube, beneficial to patient later recovery, large tissue block is cut into fragments after second cutting knife and third cutting knife, prevent clogging drainage tube.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a neurosurgery intraoperative drainage device. BACKGROUND

[0002] Neurosurgery is mainly used for treating diseases of the nervous system such as brain, spinal cord and the like caused by trauma, for example, the amount of bleeding in cerebral hemorrhage endangers life, brain trauma caused by car accident, or brain tumor compression requiring surgical treatment, etc. In the process of neurosurgical treatment, a neurosurgery drainage device is often needed. Drainage tube is a medical device for clinical surgical drainage, which guides the accumulated pus, blood and liquid in the body tissue or body cavity to the outside of the body to prevent postoperative infection and promote wound healing. There are many types of surgical drainage tubes used in clinical practice, some of which are used for urinary catheterization, some of which are used for wound, and some of which are used for chest cavity, brain cavity, gastrointestinal tract, biliary tract, etc.

[0003] The Chinese patent with the patent publication number CN106344974B discloses a portable neurosurgery surgical drainage device, which comprises a sterilization box, the bottom corners of the sterilization box are provided with movable wheel supports, the two sides of the movable wheel supports are provided with movable wheels, the inner cavity bottom of the sterilization box is provided with a support rod, the support rod is an electric telescopic rod, a placing disc is sleeved on the support rod, the bottom of the placing disc is provided with an L-shaped connecting rod and a flow rate regulating valve respectively, and the L-shaped connecting rod has two roots. The portable neurosurgery surgical drainage device works with the cooperation of the drainage tube and the suction pump, drains the exuded blood and waste liquid of the patient, collects the waste liquid through the waste liquid collecting box, controls the drainage speed through the flow rate regulating valve, improves the safety of the drainage process, and puts the drainage device into the sterilization box for comprehensive sterilization after use. The portable neurosurgery surgical drainage device is perfect in function, high in safety, simple in operation, convenient in use, time-saving and labor-saving.

[0004] The prior art in the above still has the following defects: due to the condition of the patient, the drainage tube may be placed in the patient's body for several days or even several months. During the placement process, the inserted tube may be adhered to the patient's skin and muscle tissue in the body. The above neurosurgery surgical drainage device is not convenient for pulling out the inserted tube, does not have a structure for separating the inserted tube from the patient's tissue, and is basically pulled out directly, which may easily cause damage to the patient's tissue, increase the patient's pain, and is not conducive to subsequent recovery. In addition, tissue blocks may be stored in the accumulated liquid, which may easily cause the drainage tube to be blocked, affecting the drainage effect of the operation.

[0005] Therefore, it is necessary to invent a neurosurgery intraoperative drainage device to solve the above problems. SUMMARY

[0006] The purpose of the present application is to provide a neurosurgical intraoperative drainage device to solve the problem that due to the need of the disease, the drainage tube may be placed in the patient's body for several days or even months, and during the placement process, the inserted tube may be adhered to the patient's skin muscle and other tissues in the body, the above neurosurgical drainage device is not convenient to pull out the inserted tube, there is no structure to separate the inserted tube from the patient's tissue, and basically it is directly pulled out, which is easy to cause damage to the patient's tissue, increase the patient's pain, and is not conducive to subsequent recovery, and the accumulated liquid contains tissue blocks, which easily causes the drainage tube to be blocked, affecting the drainage effect of the operation.

[0007] In order to achieve the above purpose, the present application provides the following technical scheme: a neurosurgical intraoperative drainage device, comprising a support frame, the top of the support frame is fixedly connected with a support plate, one side of the top of the support plate is provided with a collection bottle, the top of the collection bottle is inserted with a flow guide pipe, the end of the flow guide pipe away from the collection bottle is fixedly connected with a drainage tube, the end of the drainage tube away from the flow guide pipe is provided with an inserted tube, the drainage tube and the inserted tube are fixedly connected with a transition pipe, the outer surface of the transition pipe is provided with a separation component for separating the patient's tissue from the inserted tube, and the drainage tube is provided with a cutting component for cutting tissue blocks;

[0008] The separation component comprises a fixed pipe, the fixed pipe is fixedly connected to the outer surface of the transition pipe, the outer surface of the fixed pipe is movably connected with a moving ring, the outer surface of the moving ring is rotatably connected with a moving pipe through a bearing, the inner wall of the moving pipe is provided with an installation inner ring, the inner wall of the installation inner ring is fixedly connected with a first cutting knife, and the first cutting knife is matched with the inserted tube;

[0009] The cutting component comprises a reinforcing ring, the reinforcing ring is fixedly connected to the inner wall of the drainage tube, the inside of the reinforcing ring is provided with a first installation ring and a second installation ring, a plurality of second cutting knives are fixedly connected between the first installation ring and the second installation ring, and a third cutting knife is fixedly connected between the inner walls of the second installation rings.

[0010] Preferably, the inside of the inserted tube is provided with a drainage cavity, the top of the inserted tube is provided with a drainage hole, the side of the inserted tube is provided with a drainage side hole, and the drainage hole and the drainage side hole are in communication with the drainage cavity.

[0011] Preferably, one side of the collection bottle is provided with a buffer bottle, the collection bottle and the buffer bottle are communicated with a U-shaped tube, the bottom of the buffer bottle is provided with a negative pressure pump, and the input end of the negative pressure pump is communicated with the buffer bottle through an air pipe.

[0012] Preferably, the bottom of the collection bottle is provided with a waste liquid treatment bottle, the collection bottle and the waste liquid treatment bottle are provided with a drainage pipe, the first valve is arranged on the drainage pipe, the inside of the waste liquid treatment bottle is provided with a heating disc, one side of the collection bottle is provided with a branch pipe, and the second valve is arranged on the branch pipe.

[0013] Preferably, the inner wall of the moving ring is fixedly connected with first sliding blocks on both sides, and the outer surface of the fixed tube is provided with first sliding grooves on both sides, and the first sliding blocks are in sliding connection with the first sliding grooves.

[0014] Preferably, the outer surfaces of the fixed tube and the moving tube are provided with first threaded holes, the first threaded holes are internally provided with first threaded pegs, and the fixed tube and the moving tube are fixedly connected through the first threaded pegs.

[0015] Preferably, the outer surface of the moving tube and the outer surface of the installation inner ring are provided with second threaded holes and third threaded holes on both sides, the second threaded holes are internally threadedly connected with second threaded pegs, the moving tube and the installation inner ring are fixedly connected through the second threaded pegs, the outer surface of the installation inner ring is fixedly connected with second sliding blocks on both sides, and the outer surface of the moving tube is provided with second sliding grooves on both sides, and the second sliding blocks are in sliding connection with the second sliding grooves.

[0016] Preferably, the first installation ring is provided with a first fixed ring on one side close to the insertion tube, the first installation ring and the first fixed ring are fixedly connected with a first spring, the second installation ring is provided with a second fixed ring on one side away from the insertion tube, the second fixed ring and the second installation ring are fixedly connected with a second spring, and the outer surfaces of the first fixed ring and the second fixed ring are fixedly connected with the inner wall of the reinforcing ring.

[0017] In the above technical solution, the present application has the following technical effects and advantages:

[0018] 1. The insertion tube is inserted into the patient's body to drain the effusion, the effusion is guided to the collection bottle through the drainage tube, when there is a large tissue block, first, the second cutting knife cuts the outer surface of the tissue block, then the third cutting knife cuts the tissue block again, the large tissue block is cut into small pieces to prevent the drainage tube from being blocked, when the drainage is completed and the insertion tube needs to be pulled out, the first cutting knife is pulled out from the inside of the moving tube, then the moving tube is moved left and right to slowly approach the patient's skin, the moving tube is rotated to separate the insertion tube from the patient's skin and muscle tissue by the first cutting knife, the insertion tube is pulled out, the device can separate the insertion tube from the patient's skin and muscle tissue by the separation component when the insertion tube is pulled out, the insertion tube is pulled out, the patient's pain is reduced when the insertion tube is pulled out, and the damage to the patient's tissue is reduced when the insertion tube is pulled out, which is beneficial to the patient's recovery, the large tissue block is cut into pieces by the second cutting knife and the third cutting knife, and the drainage tube is prevented from being blocked;

[0019] 2. A drainage side hole is provided on the side of the insertion tube to facilitate drainage and prevent blockage. A buffer bottle is provided to prevent liquid in the collection bottle from entering the gas tube and negative pressure pump. The sample bottle is placed at the bottom of the branch tube, and the second valve is opened, allowing the liquid in the collection bottle to flow into the sample bottle. The second valve is then closed to facilitate the removal of some of the extracted liquid. The first valve is then opened, allowing the liquid in the collection bottle to flow into the waste liquid treatment bottle. The heating plate is then turned on, and the liquid in the waste liquid treatment bottle is sterilized at high temperature. By sliding the first slider left and right inside the first groove, the moving ring moves left and right on the outer surface of the fixed tube. The initial state is as follows: Figures 4-6 As shown, the second threaded pin is fixed inside the second threaded hole, and the inner ring is fixed to the inner wall of the moving tube. The first cutting blade is housed inside the moving tube. When it is necessary to separate the patient tissue from the insertion tube, the second threaded pin is rotated out of the second threaded hole, pushing the second slider so that the second slider slides towards the insertion tube inside the second groove. Then, the second threaded pin is fixed in the third threaded hole, and the first cutting blade is removed for easy cutting. In the initial state, the first threaded pin is in the first threaded hole, and the moving tube is fixed to the fixed tube by the first threaded pin. At this time, the moving tube cannot rotate or slide left or right. When it is necessary to separate the patient tissue from the insertion tube, the first threaded pin is rotated out, and the moving tube can rotate and move left and right for cutting. The first spring and the second spring are provided to buffer the suction force, facilitate the cutting of tissue blocks, and prevent blockage. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 Enlarged view of the structure of section A in the middle;

[0023] Figure 3 This is a perspective view of the insertion tube of the present invention;

[0024] Figure 4 This is a perspective view of the segmented components of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection structure between the inner ring and the first cutting blade of the present invention;

[0026] Figure 6 For the present invention Figure 4 Sectional view;

[0027] Figure 7 For the present invention Figure 6 Enlarged view of the structure of section B;

[0028] Figure 8 This is a cross-sectional view of the reinforcing ring of the present invention;

[0029] Figure 9 This is a schematic diagram of the connection structure between the first mounting ring and the second mounting ring of the present invention;

[0030] Figure 10 This is a schematic diagram of the connection structure between the second mounting ring and the third cutting blade of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Support frame; 2. Support plate; 3. Collection bottle; 4. Guide tube; 5. Drain tube; 6. Insertion tube; 7. Transition tube; 8. Fixing tube; 9. Moving ring; 10. Moving tube; 11. Inner mounting ring; 12. First cutting blade; 13. Reinforcing ring; 14. First mounting ring; 15. Second mounting ring; 16. Second cutting blade; 17. Third cutting blade; 18. Drain hole; 19. Drain side hole; 20. Buffer bottle; 21. U-shaped tube; 22. Negative pressure pump; 23. Gas pipe; 24. Waste liquid treatment bottle; 25. Drain pipe; 26. Branch pipe; 27. First slider; 28. First slide groove; 29. ​​First threaded pin; 30. Second slider; 31. Second slide groove; 32. Second threaded pin; 33. First fixing ring; 34. First spring; 35. Second fixing ring; 36. Second spring. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] This invention provides, for example Figures 1-10 The intraoperative drainage device for neurosurgery shown includes a support frame 1, a support plate 2 fixedly connected to the top of the support frame 1, a collection bottle 3 provided on one side of the top of the support plate 2, a drainage tube 4 inserted into the top of the collection bottle 3, a drainage tube 5 fixedly connected to the end of the drainage tube 4 away from the collection bottle 3, an insertion tube 6 provided at the end of the drainage tube 5 away from the drainage tube 4, a transition tube 7 fixedly connected between the drainage tube 5 and the insertion tube 6, a dividing component for separating the patient tissue from the insertion tube 6 on the outer surface of the transition tube 7, and a cutting component for cutting tissue blocks provided inside the drainage tube 5;

[0035] The cutting part comprises a reinforcing ring 13 fixedly connected to the inner wall of the drainage tube 5, the reinforcing ring 13 is fixedly connected with a first mounting ring 14 and a second mounting ring 15, a plurality of second cutting knives 16 are fixedly connected between the first mounting ring 14 and the second mounting ring 15, and a third cutting knife 17 is fixedly connected between the inner walls of the second mounting ring 15.

[0036] The cutting part comprises a reinforcing ring 13 fixedly connected to the inner wall of the drainage tube 5, the reinforcing ring 13 is fixedly connected with a first mounting ring 14 and a second mounting ring 15, a plurality of second cutting knives 16 are fixedly connected between the first mounting ring 14 and the second mounting ring 15, and a third cutting knife 17 is fixedly connected between the inner walls of the second mounting ring 15. When the drainage is completed, the first cutting knife 12 is pulled out from the inside of the moving tube 10, then the moving tube 10 is moved in the left-right direction to slowly approach the patient's skin, the moving tube 10 is rotated to separate the insertion tube 6 from the patient's skin and muscle tissue, so that the insertion tube 6 is easily pulled out, and the pain of the patient during pulling out of the insertion tube 6 is reduced, and the damage to the patient's tissue is reduced, which is beneficial to the patient's recovery. The large tissue block is cut into pieces by the second cutting knife 16 and the third cutting knife 17, so that the drainage tube 5 is prevented from being blocked.

[0037] As shown in Figure 3 The insertion tube 6 is provided with a drainage cavity, a drainage hole 18 is formed in the top of the insertion tube 6, and a drainage side hole 19 is formed in the side of the insertion tube 6, the drainage hole 18 and the drainage side hole 19 are in communication with the drainage cavity, and the drainage side hole 19 is formed in the side of the insertion tube 6, which facilitates drainage and prevents blockage.

[0038] As shown in Figure 1 The collecting bottle 3 is provided with a buffer bottle 20, a U-shaped tube 21 is in communication between the collecting bottle 3 and the buffer bottle 20, a negative pressure pump 22 is arranged at the bottom of the buffer bottle 20, and a trachea 23 is in communication between the input end of the negative pressure pump 22 and the buffer bottle 20.

[0039] As shown in Figure 1As shown: the bottom of the collection bottle 3 is provided with a waste liquid treatment bottle 24, a drainage pipe 25 is arranged between the collection bottle 3 and the waste liquid treatment bottle 24, a first valve is arranged on the drainage pipe 25, a heating disc is arranged in the waste liquid treatment bottle 24, a branch pipe 26 is arranged on one side of the collection bottle 3, a second valve is arranged on the branch pipe 26, the sample bottle is placed at the bottom of the branch pipe 26, the second valve is opened, then the liquid in the collection bottle 3 flows into the sample bottle, then the second valve is closed, part of the extracted hydrops can be taken out, the first valve is opened, then the hydrops in the collection bottle 3 flows into the waste liquid treatment bottle 24, then the heating disc is opened, and the liquid in the waste liquid treatment bottle 24 is treated by high temperature disinfection.

[0040] As shown in Figures 6-7 : the inner wall of the moving ring 9 is fixedly connected with first sliding blocks 27 on both sides, first sliding grooves 28 are formed in the outer surface of the fixed tube 8 on both sides, the first sliding blocks 27 are slidably connected with the first sliding grooves 28, and the moving ring 9 moves left and right on the outer surface of the fixed tube 8 by sliding the first sliding blocks 27 left and right in the first sliding grooves 28.

[0041] As shown in Figure 4 and Figure 6 : first threaded holes are formed in the outer surfaces of the fixed tube 8 and the moving tube 10, first threaded pegs 29 are arranged in the first threaded holes, the fixed tube 8 and the moving tube 10 are fixedly connected through the first threaded pegs 29, in the initial state, the first threaded pegs 29 are in the first threaded holes, so that the moving tube 10 is fixed on the fixed tube 8 by the first threaded pegs 29, at this time, the moving tube 10 cannot rotate and cannot slide left and right, when it is necessary to separate the patient's tissue from the insertion tube 6, the first threaded pegs 29 are rotated out, so that the moving tube 10 can rotate and move left and right.

[0042] As shown in Figures 4-6 : second sliding blocks 30 are fixedly connected to the outer surfaces of the mounting inner ring 11 on both sides, second sliding grooves 31 are formed in the outer surfaces of the moving tube 10 on both sides, the second sliding blocks 30 are slidably connected with the second sliding grooves 31, second threaded holes and third threaded holes are formed in the outer surfaces of the moving tube 10 and the mounting inner ring 11 on both sides, second threaded pegs 32 are threadedly connected in the second threaded holes, the moving tube 10 and the mounting inner ring 11 are fixedly connected through the second threaded pegs 32, in the initial state as shown in Figures 4-6 : the second threaded pegs 32 are fixed in the second threaded holes, so that the mounting inner ring 11 is fixed to the inner wall of the moving tube 10, and the first cutting knife 12 is stored in the moving tube 10, when it is necessary to separate the patient's tissue from the insertion tube 6, the second threaded pegs 32 are rotated out of the second threaded holes, the second sliding blocks 30 are pushed to slide in the second sliding grooves 31 towards the insertion tube 6, then the second threaded pegs 32 are fixed in the third threaded holes, so that the first cutting knife 12 is moved out for cutting.

[0043] As shown in Figure 8As shown: the first mounting ring 14 is provided with a first fixed ring 33 near the side of the insertion tube 6, the first mounting ring 14 and the first fixed ring 33 are fixedly connected with the first spring 34, the second mounting ring 15 is provided with a second fixed ring 35 away from the side of the insertion tube 6, the second fixed ring 35 and the second mounting ring 15 are fixedly connected with the second spring 36, the outer surfaces of the first fixed ring 33 and the second fixed ring 35 are fixedly connected with the inner wall of the reinforcing ring 13, by being provided with the first spring 34 and the second spring 36, the suction force is buffered, the tissue block is cut, and blockage is prevented.

[0044] The working principle of the present application is as follows:

[0045] Referring to the drawings in the specification Figures 1-10 In use, the insertion tube 6 is inserted into the patient's body to drain the effusion, the effusion is guided to the collection bottle 3 through the drainage tube 5, when there is a large tissue block, first, the second cutting knife 16 cuts the outer surface of the tissue block, then the third cutting knife 17 cuts the tissue block again, the large tissue block is cut into small pieces, and blockage of the drainage tube 5 is prevented, when the drainage is finished and the insertion tube 6 needs to be pulled out, the first cutting knife 12 is pulled out from the inside of the moving tube 10, then the moving tube 10 is moved left and right to slowly approach the patient's skin, the first cutting knife 12 is rotated to separate the insertion tube 6 from the patient's skin and muscle tissue, and the insertion tube 6 is pulled out;

[0046] Referring to the drawings in the specification Figures 1-10 By providing the drainage side hole 19 on the side of the insertion tube 6, drainage is facilitated and blockage is prevented, by providing the buffer bottle 20, the liquid in the collection bottle 3 is prevented from entering the trachea 23 and the negative pressure pump 22, the sample bottle is placed at the bottom of the branch pipe 26, the second valve is opened, then the liquid in the collection bottle 3 flows into the sample bottle, then the second valve is closed, part of the extracted effusion is taken out, the first valve is opened, then the effusion in the collection bottle 3 flows into the waste liquid treatment bottle 24, then the heating disc is opened, the liquid in the waste liquid treatment bottle 24 is high-temperature sterilized, by sliding the first sliding block 27 left and right in the first sliding groove 28, the moving ring 9 moves left and right on the outer surface of the fixed tube 8, the initial state is as shown in Figures 4-6As shown, the second threaded peg 32 is fixed in the second threaded hole, so the mounting inner ring 11 is fixed on the inner wall of the moving tube 10, and the first cutting knife 12 is accommodated in the moving tube 10; when it is needed to separate the patient tissue from the insertion tube 6, the second threaded peg 32 is rotated out of the second threaded hole, the second sliding block 30 is pushed to slide in the second sliding groove 31 to the direction of the insertion tube 6, and then the second threaded peg 32 is fixed in the third threaded hole, so the first cutting knife 12 is moved out to facilitate cutting; in the initial state, the first threaded peg 29 is in the first threaded hole, so the moving tube 10 is fixed on the fixed tube 8 by the first threaded peg 29, at this time, the moving tube 10 cannot rotate and slide left and right; when it is needed to separate the patient tissue from the insertion tube 6, the first threaded peg 29 is rotated out, so the moving tube 10 can rotate and slide left and right to cut; by being provided with the first spring 34 and the second spring 36, the suction force is buffered, the tissue block is facilitated to be cut, and blockage is prevented.

[0047] The foregoing merely describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various manners without departing from the spirit and scope of the present application. Therefore, the foregoing drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A neurosurgical intraoperative drainage device, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to the top of the support plate (2). A collection bottle (3) is provided on one side of the top of the support plate (2). A guide tube (4) is inserted into the top of the collection bottle (3). A drainage tube (5) is fixedly connected to the end of the guide tube (4) away from the collection bottle (3). An insertion tube (6) is provided at the end of the drainage tube (5) away from the guide tube (4). A transition tube (7) is fixedly connected between the drainage tube (5) and the insertion tube (6). A dividing component for separating the patient tissue from the insertion tube (6) is provided on the outer surface of the transition tube (7). A cutting component for cutting tissue blocks is provided inside the drainage tube (5). The dividing component includes a fixed tube (8), which is fixedly connected to the outer surface of the transition tube (7). A movable ring (9) is movably connected to the outer surface of the fixed tube (8) from left to right. A movable tube (10) is rotatably connected to the outer surface of the movable ring (9) via a bearing. An inner ring (11) is installed on the inner wall of the movable tube (10). A first cutting blade (12) is fixedly connected to the inner wall of the inner ring (11). The first cutting blade (12) matches the insertion tube (6). The cutting component includes a reinforcing ring (13), which is fixedly connected to the inner wall of the drainage tube (5). The reinforcing ring (13) has a first mounting ring (14) and a second mounting ring (15) inside. A plurality of second cutting blades (16) are fixedly connected between the first mounting ring (14) and the second mounting ring (15), and a third cutting blade (17) is fixedly connected between the inner walls of the second mounting rings (15). The inner mounting ring (11) is fixedly connected to two sides of its outer surface with a second slider (30). The outer surface of the moving tube (10) is provided with a second groove (31) on both sides. The second slider (30) is slidably connected to the second groove (31). The outer surfaces of the moving tube (10) and the inner mounting ring (11) are provided with a second threaded hole and a third threaded hole. The second threaded hole is threaded with a second threaded pin (32). The moving tube (10) and the inner mounting ring (11) are fixedly connected by the second threaded pin (32).

2. The intraoperative drainage device for neurosurgery according to claim 1, characterized in that: The insertion tube (6) has a drainage cavity inside, a drainage hole (18) is provided at the top of the insertion tube (6), and a drainage side hole (19) is provided on the side of the insertion tube (6). The drainage hole (18) and the drainage side hole (19) are both connected to the drainage cavity.

3. The intraoperative drainage device for neurosurgery according to claim 1, characterized in that: A buffer bottle (20) is provided on one side of the collection bottle (3). A U-shaped tube (21) is connected between the collection bottle (3) and the buffer bottle (20). A negative pressure pump (22) is provided at the bottom of the buffer bottle (20). An air tube (23) is connected between the input end of the negative pressure pump (22) and the buffer bottle (20).

4. The intraoperative drainage device for neurosurgery according to claim 1, characterized in that: The bottom of the collection bottle (3) is provided with a waste liquid treatment bottle (24), and a drain pipe (25) is provided between the collection bottle (3) and the waste liquid treatment bottle (24). A first valve is provided on the drain pipe (25), a heating plate is provided inside the waste liquid treatment bottle (24), a branch pipe (26) is provided on one side of the collection bottle (3), and a second valve is provided on the branch pipe (26).

5. A neurosurgical intraoperative drainage device according to claim 1, characterized in that: The inner walls of the movable ring (9) are fixedly connected to the first slider (27) on both sides, and the outer surfaces of the fixed tube (8) are provided with the first groove (28) on both sides. The first slider (27) is slidably connected to the first groove (28).

6. A neurosurgical intraoperative drainage device according to claim 1, characterized in that: The outer surfaces of the fixed tube (8) and the moving tube (10) are provided with a first threaded hole, and a first threaded pin (29) is provided inside the first threaded hole. The fixed tube (8) and the moving tube (10) are fixedly connected by the first threaded pin (29).

7. A neurosurgical intraoperative drainage device according to claim 1, characterized in that: The first mounting ring (14) has a first fixing ring (33) on the side near the insertion tube (6), and a first spring (34) is fixedly connected between the first mounting ring (14) and the first fixing ring (33). The second mounting ring (15) has a second fixing ring (35) on the side away from the insertion tube (6), and a second spring (36) is fixedly connected between the second fixing ring (35) and the second mounting ring (15). The outer surfaces of the first fixing ring (33) and the second fixing ring (35) are both fixedly connected to the inner wall of the reinforcing ring (13).

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