Conveniently adjustable ventricular drainage device

Abstract

The application relates to a cerebroventricular drainage device with convenient adjustment, which comprises a drainage tube and a flow rate regulator arranged on the drainage tube and used for adjusting the flow rate of fluid in the drainage tube, wherein the flow rate regulator comprises a shell, the front side of the shell is provided with an inclined surface which is inclined from top to bottom from front to back, the inclined surface is provided with an adjusting through groove, the adjusting through groove comprises a first sliding groove arranged along the length direction of the inclined surface and a plurality of limiting grooves which are arranged along the length direction of the inclined surface and are in communication with the first sliding groove, and the drainage tube longitudinally penetrates through the shell. The flow rate regulator of the cerebroventricular drainage device can quantitatively extrude the drainage tube, so as to quantitatively adjust the flow rate of the body fluid in the drainage tube. The quantitative adjustment can reduce the dependence on the experience of medical staff, so that the medical staff with insufficient experience can also adjust the drainage speed to the required position according to the treatment needs. Compared with the traditional regulator, the cerebroventricular drainage device is not easy to cause the patient's intracranial pressure to be too low, and thus is not easy to cause danger.

Description

Technical Field

[0001] This invention belongs to the field of clinical medical device technology, specifically relating to a conveniently adjustable ventricular drainage device. Background Technology

[0002] Some patients undergoing neurosurgery require postoperative drainage. The conventional device for ventricular drainage is a drainage tube connected to a drainage bag at the other end to collect fluid. Since the flow rate of intracerebral fluid directly affects the patient's condition, a flow rate regulator is installed on the drainage tube to adjust the flow rate. However, this regulator is merely a standard infusion tube regulator, requiring medical staff to push an adjustment wheel to adjust the flow rate. The actual adjusted flow rate depends on the experience of the medical staff, thus requiring a high level of expertise. Inexperienced medical staff may struggle to make precise adjustments, potentially leading to dangerously low intracranial pressure. To address these issues, we propose a more easily adjustable ventricular drainage device. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a conveniently adjustable ventricular drainage device.

[0004] To achieve the above objectives, one technical solution adopted by the present invention is:

[0005] A conveniently adjustable ventricular drainage device includes a drainage tube and a flow rate regulator disposed on the drainage tube for adjusting the flow rate of fluid within the drainage tube. The flow rate regulator includes a housing, and the front side of the housing has an inclined surface that slopes from front to back and from top to bottom. An adjustment groove is formed on the inclined surface. The adjustment groove includes a first sliding groove arranged along the length direction of the inclined surface and a plurality of limiting grooves spaced apart along the length direction of the inclined surface and communicating with the first sliding groove. The drainage tube extends longitudinally through the housing.

[0006] The flow rate regulator further includes a pressing member hinged within the housing and located between the drainage tube and the regulating channel; an elastic member disposed on the housing that can drive the pressing member to flip toward the drainage tube; a sliding member slidably mounted on the pressing member and capable of sliding along the length direction of the pressing member; a connecting member connected to the sliding member and passing through the regulating channel; and a limiting member disposed at the end of the connecting member away from the sliding member and unable to pass through the regulating channel.

[0007] Furthermore, the extruder has a second sliding groove arranged parallel to the length direction of the extruder, and the sliding member includes a sliding column passing through the second sliding groove and a front limiting block and a rear limiting block respectively disposed at the front and rear ends of the sliding column.

[0008] Further, the connecting piece is connected with the front limiting block in a universal manner.

[0009] Further, the limiting groove comprises a third sliding groove connected with the first sliding groove in a vertical manner and a fourth sliding groove communicated with the third sliding groove and not communicated with the first sliding groove, and the fourth sliding groove is located at the lower side of the third sliding groove.

[0010] Further, the inside of the shell is provided with a rotating shaft, and the lower end of the extruding piece is provided with a rotating seat which is sleeved outside the rotating shaft.

[0011] Further, the elastic piece is defined as a torsion spring which is sleeved outside the rotating shaft, the torsion spring has a first connecting end and a second connecting end, the first connecting end is connected to the shell, the second connecting end is connected to the extruding piece, and the torsion spring can push the extruding piece to one side of the drainage tube through the cooperation of the first connecting end and the second connecting end.

[0012] Further, the extruding piece is provided with an extruding plate located at the side of the extruding piece close to the drainage tube at one end away from the rotating shaft, and the extruding plate is inclined from front to back and from top to bottom.

[0013] Further, the shell is spliced by a first half shell and a second half shell, the inside of the first half shell and the second half shell is provided with a limiting sliding block, and the two sides of the extruding piece are provided with limiting sliding grooves matched with the limiting sliding blocks;

[0014] When the extruding piece does not contact the drainage tube, the two limiting sliding blocks are not inserted into the corresponding limiting sliding grooves.

[0015] When the extruding piece contacts the drainage tube, the two limiting sliding blocks are inserted into the corresponding limiting sliding grooves, and in this state, the first half shell cannot be separated from the second half shell.

[0016] Further, the longitudinal width of the limiting sliding block away from the corresponding half shell is greater than the longitudinal width of the limiting sliding block close to the corresponding half shell.

[0017] Further, the longitudinal section of the limiting sliding block and the limiting sliding groove in the left-right direction is in the shape of “T”, and the longitudinal section of the limiting sliding block and the limiting sliding groove in the front-rear direction is in the shape of a circular arc with the axis of the rotating shaft as the center.

[0018] The application provides a convenient adjustment ventricular drainage device, the flow rate regulator of the ventricular drainage device can quantitatively extrude the drainage tube to quantitatively adjust the flow rate of the body fluid in the drainage tube, the quantitative adjustment can reduce the dependence on the experience of medical staff, and the medical staff with insufficient experience can also adjust the drainage speed to the required position according to the treatment requirement, compared with the traditional regulator, the patient's intracranial pressure is less likely to be too low, and danger is less likely to be caused. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0020] Figure 1 The structure schematic diagram of an embodiment of the present application is shown in the figure;

[0021] Figure 2 The structure schematic diagram of an embodiment of the present application is shown in the figure; Figure 1 The structure schematic diagram of an embodiment of the present application is shown in the figure;

[0022] Figure 3 The structure schematic diagram of an embodiment of the present application is shown in the figure; Figure 1 ;

[0023] Figure 4 The structure schematic diagram of an embodiment of the present application is shown in the figure; Figure 3 The structure schematic diagram of an embodiment of the present application is shown in the figure;

[0024] Figure 5 The structure schematic diagram of an embodiment of the present application is shown in the figure; Figure 2 ;

[0025] Figure 6 The structure schematic diagram of an embodiment of the present application is shown in the figure; Figure 5 The structure schematic diagram of an embodiment of the present application is shown in the figure;

[0026] Figure 7 The structure schematic diagram of an embodiment of the present application is shown in the figure; Figure 5 The structure schematic diagram of an embodiment of the present application is shown in the figure;

[0027] Figure 8 The structure schematic diagram of an embodiment of the present application is shown in the figure;

[0028] Figure 9 The structure schematic diagram of an embodiment of the present application is shown in the figure; Figure 8 The structure schematic diagram of an embodiment of the present application is shown in the figure;

[0029] Figure 10 The structure schematic diagram of an embodiment of the present application is shown in the figure;

[0030] Figure 11 The structure schematic diagram of an embodiment of the present application is shown in the figure;

[0031] Figure 12Figure 1 is a schematic view of the connection of the sliding member, the connecting member and the limiting member in an embodiment of the present application.

[0032] The meanings of the reference numerals in the drawings are as follows:

[0033] Drainage tube 1

[0034] Flow rate regulator 2, housing 21, inclined surface 211, adjusting through slot 212, first sliding groove 213, limiting groove 214, third sliding groove 2141, fourth sliding groove 2142, rotating shaft 215, first half housing 216, plug-in rod 2161, limiting convex ring 2162, second half housing 217, plug-in rod hole 2171, limiting ring groove 2172, rotating shaft insertion hole 2173, limiting sliding block 218, drainage tube insertion slot 219

[0035] Extrusion member 22, second sliding groove 221, rotating seat 222, extrusion plate 223, limiting sliding groove 224, insertion hole 225

[0036] Elastic member 23, torsion spring 231, first connecting end 2311, second connecting end 2312

[0037] Sliding member 24, sliding column 241, front limiting block 242, ball head groove 2421, rear limiting block 243

[0038] Connecting member 25, ball head 251, connecting rod 252, limiting member 26 DETAILED DESCRIPTION

[0039] The present application will be further described below in conjunction with the drawings.

[0040] Referring to Figures 1-12 As shown in the drawings, the present embodiment shows a convenient-to-adjust ventricular drainage device, which comprises a drainage tube 1 and a flow rate regulator 2 arranged on the drainage tube 1 for adjusting the flow rate of the fluid in the drainage tube 1. The flow rate regulator 2 can quantitatively extrude the drainage tube 1 to quantitatively adjust the flow rate of the body fluid in the drainage tube 1. Even inexperienced medical staff can adjust the drainage rate to the desired size according to the treatment needs when using it, which is less likely to cause the patient's intracranial pressure to be too low and less likely to pose a danger compared with traditional regulators.

[0041] In actual use, one end of the drainage tube 1 is inserted into the patient's ventricle, and the other end is connected with a drainage bag. The body fluid in the ventricle can flow out through the drainage tube 1 into the drainage bag. The flow rate of the drainage tube 1 can be adjusted by the flow rate regulator 2 to meet the treatment needs.

[0042] The structure of the flow rate regulator 2 is exemplarily introduced as follows. Specifically, the flow rate regulator 2 comprises a housing 21, the front side of the housing 21 is provided with an inclined surface 211 inclined from top to bottom from front to back, the inclined surface 211 is provided with an adjusting through groove 212, the adjusting through groove 212 comprises a first sliding groove 213 arranged along the length direction of the inclined surface 211 and a plurality of limiting grooves 214 arranged along the length direction of the inclined surface 211 and communicated with the first sliding groove 213. Specifically, the limiting groove 214 comprises a third sliding groove 2141 connected with the first sliding groove 213 perpendicularly and a fourth sliding groove 2142 communicated with the third sliding groove 2141 and not communicated with the first sliding groove 213, the fourth sliding groove 2142 is located at the lower side of the third sliding groove 2141. It should be understood that the specific structure of the limiting groove 214 is not limited to the above embodiment.

[0043] It should be noted that the housing 21 is provided with a drainage tube insertion slot 219 matched with the drainage tube 1 at the upper and lower ends, and the drainage tube 1 penetrates the two drainage tube insertion slots 219 in sequence to longitudinally penetrate the housing 21.

[0044] The flow rate regulator 2 further comprises a pressing piece 22 hinged in the housing 21 and located between the drainage tube 1 and the adjusting through groove 212, an elastic piece 23 arranged on the housing 21 and capable of driving the pressing piece 22 to overturn to one side of the drainage tube 1, a sliding piece 24 slidingly assembled on the pressing piece 22 and capable of sliding along the length direction of the pressing piece 22, a connecting piece 25 connected to the sliding piece 24 and penetrating the adjusting through groove 212, and a limiting piece 26 arranged at the end of the connecting piece 25 away from the sliding piece 24 and incapable of passing through the adjusting through groove 212.

[0045] In order to realize the rotary connection between the pressing piece 22 and the housing 21, the embodiment provided in the present embodiment is to arrange a rotating shaft 215 inside the housing 21, arrange a rotating seat 222 at the lower end of the pressing piece 22, and arrange the rotating seat 222 outside the rotating shaft 215 through the rotating seat 222 to realize the rotary connection between the pressing piece 22 and the housing 21. It should be understood that the rotary connection mode between the pressing piece 22 and the housing 21 is not limited to the above embodiment.

[0046] In order for the elastic element 23 to push the extrusion plate 223 to cooperate with the housing 21 to extrude the drainage tube 1, in this embodiment, the elastic element 23 is defined as a torsion spring 231 sleeved on the outside of the rotating shaft 215. Specifically, the torsion spring 231 is a double torsion spring. The torsion spring 231 has a first connecting end 2311 located in the middle and two second connecting ends 2312 located on both sides. The first connecting end 2311 abuts against the inner wall of the front side of the housing 21. The lower end of the extrusion element 22 has two insertion holes 225 for the second connecting ends 2312 to be inserted. The two second connecting ends 2312 are inserted into the two insertion holes 225 to connect with the extrusion element 22. Under its own elastic force, the torsion spring 231 will push the extrusion element 22 towards the drainage tube 1 through the cooperation of the first connecting end 2311 and the housing 21, and cooperate with the inner rear wall of the housing 21 to extrude the drainage tube 1.

[0047] To achieve a sliding connection between the sliding member 24 and the extruder 22, the structures of the extruder 22 and the sliding member 24 are further described below. Specifically, the extruder 22 has a second groove 221 arranged parallel to its length. The sliding member 24 includes a sliding post 241 passing through the second groove 221 and a front limiting block 242 and a rear limiting block 243 respectively disposed at the front and rear ends of the sliding post 241. The front limiting block 242 and the limiting block 243, together with the sliding post 241, form an "I"-shaped structure. The "I"-shaped sliding member 24, when assembled onto the second groove 221, can achieve a sliding connection with the extruder 22. It is worth mentioning that the lower end of the second groove 221 passes through the lower end of the extruder 22 to facilitate the assembly of the sliding member 24 and the extruder 22.

[0048] In this embodiment, the connecting member 25 is universally hinged to the front limiting block 242. Specifically, the front limiting block 242 has a ball head groove 2421. The connecting member 25 includes a ball head 251 rotatably assembled with the ball head groove 2421 and a connecting rod 252 fixed to the ball head 251. By the ball head 251 engaging with the ball head groove 2421, the connecting member 25 and the front limiting block 242 can achieve universal hinge. It should be understood that the universal hinge method between the connecting member 25 and the front limiting block 242 is not limited to the above-described embodiment. It should be noted that the limiting member 26 is fixed to the end of the connecting rod 252 away from the ball head 251. It is worth mentioning that the limiting member 26 is spherical in shape, which allows the user to easily move the limiting member 26 in various directions.

[0049] In the natural state, the torsion spring 231 will make the pressing piece 22 have a tendency to turn over to one side of the drainage tube 1, and if the connecting piece 25 is located in the first sliding groove 213 in this state, the limiting piece 26 will not be limited by the limiting groove 214 to slide downward, that is, the connecting piece 25 can freely slide downward in the first sliding groove 213, so under the elastic force of the torsion spring 231, the pressing piece 22 will turn over until the drainage tube 1 is completely crushed, and in this state, the internal passage of the drainage tube 1 is cut off, that is, the drainage tube 1 cannot flow through the body fluid.

[0050] When it is necessary to adjust the flow rate in the drainage tube 1, the user can hold the shell 21 and then push the limiting piece 26 upward along the first sliding groove 213, and since the slope 211 of the first sliding groove 213 is inclined from front to back and from top to bottom, the limiting piece 26 will pull the pressing piece 22 to the front side by cooperating with the sliding piece 24 through the connecting piece 25 during the upward sliding process, so that the pressing piece 22 overcomes the elastic force of the torsion spring 231 and turns over to the side away from the drainage tube 1, which will reduce the amount of pressing on the drainage tube 1, so that the drainage tube 1 will gradually be conducted, and the flow rate of the internal body fluid will gradually increase, and after the flow rate is adjusted to the target position, the limiting piece 26 is actuated to make the connecting piece 25 slide into the corresponding limiting groove 214, specifically, first slide into the third sliding groove 2141, and then slide into the fourth sliding groove 2142, and under the guiding action of the slope 211 and the elastic force of the torsion spring 231, the connecting piece 25 will be kept in the fourth sliding groove 2142, so that the limiting piece 26 cooperates with the fourth sliding groove 2142 and the connecting piece 25 to limit the downward sliding of the sliding piece 24, and the turning angle of the pressing piece 22 will be fixed to keep the amount of pressing on the drainage tube 1 constant, and thus the flow rate adjustment in the drainage tube 1 is completed.

[0051] Turning the connecting piece 25 into each limiting groove 214 on the slope 211 can make the pressing piece 22 turn over to different turning angles, and correspondingly make the drainage tube 1 be in different degrees of pressing state, so that the flow rate of the fluid in the drainage tube 1 can be clearly and quantitatively adjusted, and the medical staff does not need to rely on experience to judge the flow rate in the drainage tube 1 when using, so as to facilitate the medical staff to accurately adjust the flow rate, and compared with the traditional regulator, it is not easy to cause the patient's intracranial pressure to be too low, and thus it is not easy to cause danger. In order to more directly observe the flow rate, the corresponding flow rate mark can be set for each limiting groove 214 on the slope 211, for example, the flow rate number is silk-screened on the slope 211 for each limiting groove 214.

[0052] It should be noted that the guiding effect of the inclined surface 211 and the elastic force of the torsion spring 231 make the connecting piece 25 self-locked into the fourth sliding groove 2142, compared with the conventional drainage tube regulator, the flow rate regulator 2 is difficult to affect the control of the flow rate when being accidentally scratched, and thus has higher safety. In addition, even if the connecting piece 25 is scratched into the first sliding groove 213, under the elastic force of the torsion spring 231 and the guiding effect of the inclined surface 211, the pressing piece 22 will automatically turn over to completely crush the drainage tube 1, that is, stop the drainage. Compared with the conventional flow rate regulator 2, after being accidentally scratched, the flow rate regulator 2 will not increase the drainage flow rate, so as to avoid the risk of low intracranial pressure of the patient, and thus the flow rate regulator 2 has higher safety while being convenient to adjust.

[0053] In order to facilitate the assembly of the drainage tube 1 into the flow rate regulator 2, the embodiment further has the following arrangement. Specifically, the pressing piece 22 is provided with a pressing plate 223 located on the side of the pressing piece 22 close to the drainage tube 1 and away from the rotating shaft 215, and the pressing plate 223 is inclined from front to back and from top to bottom. On this basis, the pressing piece 22 actually presses the drainage tube 1 through the pressing plate 223.

[0054] When the flow rate regulator 2 is not assembled with the drainage tube 1, the pressing piece 22 will turn over until the pressing plate 223 abuts against the inner back wall of the shell 21. Since the pressing plate 223 is inclined from front to back and from top to bottom, the pressing plate 223 will form a “V”-shaped space with the inner back wall of the shell 21, and the opening of the “V”-shaped space is aligned with the upper drainage tube slot 219. Therefore, when assembling the drainage tube 1, the drainage tube 1 can be inserted from the upper drainage tube slot 219, and after entering the shell 21, the drainage tube 1 will enter the “V”-shaped space. After abutting against the pressing plate 223, the pressing plate 223 will be forced to turn over forward with the pressing piece 22, so that the drainage tube 1 can pass between the pressing piece 22 and the inner back wall of the shell 21. After the drainage tube 1 passes through the pressing piece 22, the drainage tube 1 can be taken out from the lower drainage tube slot 219. Thus, the assembly is completed, and the whole assembly process is simple and convenient, and the flow rate regulator 2 is convenient to use repeatedly.

[0055] In order to facilitate the disassembly and assembly of the flow rate regulator 2, the shell 21 is formed by splicing a first half shell 216 and a second half shell 217, the first sliding groove 213 and the drainage pipe insertion groove 219 are both formed by splicing two parts, and the two parts are located on the first half shell 216 and the second half shell 217 respectively. Specifically, a plurality of insertion rod holes 2171 are formed on the second half shell 217, and the inner wall of the insertion rod hole 2171 is provided with a limiting ring groove 2172. Correspondingly, the first half shell 216 is provided with a plurality of insertion rods 2161 corresponding to the plurality of insertion rod holes 2171, and the peripheral surface of the insertion rod 2161 is provided with a limiting convex ring 2162 matched with the limiting ring groove 2172. After the first half shell 216 and the second half shell 217 are spliced, each insertion rod 2161 is inserted into the corresponding insertion rod hole 2171, and the limiting convex ring 2162 is clamped into the corresponding limiting ring groove 2172. In this way, the first half shell 216 is fixedly connected with the second half shell 217. It should be understood that the splicing mode of the first half shell 216 and the second half shell 217 is not limited to the above embodiment. The shell 21 is provided as the first half shell 216 and the second half shell 217, which facilitates the assembly of various parts in the shell 21, and facilitates the disassembly and assembly of the flow rate regulator 2.

[0056] In the embodiment, the rotating shaft 215 is fixedly connected to the first half shell 216, and the second half shell 217 is provided with a rotating shaft insertion hole 2173 for inserting the rotating shaft 215. After the first half shell 216 and the second half shell 217 are spliced, the rotating shaft 215 can be inserted into the rotating shaft insertion hole 2173, so as to improve the stability of the rotating shaft 215.

[0057] In order to enhance the disassembly difficulty of the flow rate regulator 2, the first half shell 216 and the second half shell 217 are provided with limiting sliding blocks 218 on the inner sides, and the extrusion member 22 is provided with limiting sliding grooves 224 matched with the corresponding limiting sliding blocks 218 on both sides. The longitudinal width of the limiting sliding block 218 away from the corresponding half shell is greater than the longitudinal width of the limiting sliding block 218 close to the corresponding half shell. Specifically, the longitudinal section of the limiting sliding block 218 and the limiting sliding groove 224 in the left-right direction is "T" shaped, and the longitudinal section of the limiting sliding block 218 and the limiting sliding groove 224 in the front-rear direction is circular arc shaped with the axis of the rotating shaft 215 as the center.

[0058] When the extruding piece 22 does not contact the drainage tube 1, both of the limiting sliding blocks 218 are not inserted into the corresponding limiting sliding grooves 224; when the extruding piece 22 contacts the drainage tube 1, both of the limiting sliding blocks 218 are inserted into the corresponding limiting sliding grooves 224, in this state, the first half shell 216 cannot be separated from the second half shell 217. Therefore, if the flow rate regulator 2 needs to be disassembled, the limiting piece 26 needs to be pushed upward until the extruding plate 223 does not extrude the drainage tube 1, that is, the extruding plate 223 does not contact the drainage tube 1, in this state, both of the limiting sliding blocks 218 can exit from the two limiting sliding grooves 224, while keeping the extruding plate 223 not contacting the drainage tube 1, the first half shell 216 and the second half shell 217 can be forced to move to both sides respectively, so that the first half shell 216 and the second half shell 217 can be separated, thus the disassembly can be completed.

[0059] In the actual drainage treatment process, the drainage tube 1 often does not stay in the state of being completely extruded, and in this state, both of the limiting sliding blocks 218 are inserted into the corresponding limiting sliding grooves 224, therefore, the flow rate regulator 2 cannot be disassembled during the drainage treatment process, so that when the flow rate regulator 2 is accidentally hit or extruded during the drainage treatment process, the first half shell 216 and the second half shell 217 are also difficult to separate, further ensuring the safety of drainage, and facilitating the popularization and use.

[0060] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A ventricular shunt device for ease of adjustment, characterized by: The drainage tube and the flow rate regulator arranged on the drainage tube for adjusting the flow rate of fluid in the drainage tube, the flow rate regulator comprises a housing, the front side of the housing has an inclined surface which is inclined from top to bottom, the inclined surface is provided with an adjusting through slot, the adjusting through slot comprises a first sliding groove arranged along the length direction of the inclined surface and a plurality of limiting grooves arranged along the length direction of the inclined surface and communicated with the first sliding groove, and the drainage tube longitudinally penetrates the housing; The flow rate regulator further comprises a pressing piece hinged in the housing and located between the drainage tube and the adjusting through slot, an elastic piece arranged on the housing and capable of driving the pressing piece to flip to one side of the drainage tube, a sliding piece slidingly assembled on the pressing piece and capable of sliding along the length direction of the pressing piece, a connecting piece connected to the sliding piece and penetrating the adjusting through slot, and a limiting piece arranged at the end of the connecting piece away from the sliding piece and incapable of passing through the adjusting through slot; The pressing piece is provided with a second sliding groove arranged in parallel with the length direction of the pressing piece, and the sliding piece comprises a sliding column penetrating the second sliding groove and a front limiting block and a rear limiting block respectively arranged at the front and rear ends of the sliding column; The inside of the housing is provided with a rotating shaft, and the lower end of the pressing piece has a rotating seat which is sleeved on the outside of the rotating shaft.

2. A conveniently adjustable ventricular drainage device according to claim 1, characterized in that: The connecting piece and the front limiting block are universally hinged.

3. The easily adjustable ventricular drainage device according to claim 1, wherein: The limiting groove comprises a third sliding groove connected perpendicularly with the first sliding groove and a fourth sliding groove communicated with the third sliding groove and not communicated with the first sliding groove, and the fourth sliding groove is located on the lower side of the third sliding groove.

4. The easily adjustable ventricular drainage device of claim 1, wherein: The elastic piece is defined as a torsion spring which is sleeved on the outside of the rotating shaft, the torsion spring has a first connecting end and a second connecting end, the first connecting end is connected to the housing, the second connecting end is connected to the pressing piece, and the torsion spring can push the pressing piece to one side of the drainage tube through the cooperation of the first connecting end and the second connecting end.

5. The easily adjustable ventricular drainage device according to claim 1, wherein: The end of the pressing piece away from the rotating shaft is provided with a pressing plate located on the side of the pressing piece close to the drainage tube, and the pressing plate is inclined from top to bottom.

6. The easily adjustable ventricular drainage device of claim 1, wherein: The housing is spliced by a first half housing and a second half housing, the inside of the first half housing and the second half housing is respectively provided with a limiting sliding block, and the two sides of the pressing piece are respectively provided with a limiting sliding groove matched with the corresponding limiting sliding block; When the pressing piece does not contact the drainage tube, the two limiting sliding blocks are not inserted into the corresponding limiting sliding grooves; When the pressing piece contacts the drainage tube, the two limiting sliding blocks are inserted into the corresponding limiting sliding grooves, and at this time, the first half housing cannot be separated from the second half housing.

7. A conveniently adjustable ventricular drainage device according to claim 6, characterized in that: The longitudinal width of the limiting sliding block away from the side of the corresponding half housing is greater than the longitudinal width of the limiting sliding block close to the side of the corresponding half housing.

8. A conveniently adjustable ventricular drainage device according to claim 7, characterized in that: The longitudinal section of the limiting sliding block and the limiting sliding groove in the left-right direction is "T" shaped, and the longitudinal section of the limiting sliding block and the limiting sliding groove in the front-rear direction is circular arc shaped with the axis of the rotating shaft as the center.

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