Cerebral ventricular drainage regulator

Abstract

The application discloses a ventricular drainage regulator, belongs to the field of drainage devices, and is used for ventricular drainage and comprises a liquid storage tank provided with a tank body connecting pipe, wherein the liquid storage tank is connected with a negative pressure tank provided with a main piston through a threaded structure, the main piston is connected with an auxiliary rack through a main piston rod, the auxiliary rack is in mesh transmission with a driving gear of a rack driving motor, a main cavity in the negative pressure tank is communicated with an auxiliary cavity in a negative pressure auxiliary pipe through a cavity connecting hole, an auxiliary piston is arranged in the auxiliary cavity, the auxiliary piston blocks the cavity connecting hole in an initial state, the auxiliary piston is connected with an auxiliary piston rod, the auxiliary piston rod is connected with a linkage rod, the linkage rod is connected with a linkage plate, the linkage plate is connected with the auxiliary rack, and the application can generate and fine tune a negative pressure environment through structural adjustment, can effectively guarantee the stability of the negative pressure environment, can increase and fine tune the negative pressure, has better flexibility and adaptability, and is convenient for ventricular drainage and observation of drainage volume.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of drainage devices, in particular, it relates to a ventricular drainage regulator. BACKGROUND

[0002] The external ventricular drainage device is generally used in external ventricular puncture drainage surgery. The drainage bottle is generally connected with the patient's ventricle through a drainage tube, and the liquid inflow is realized by controlling the pressure in the bottle. In the prior art, there is a drainage device with the following structure, see the patent document with the patent number CN222899826U, which discloses an external ventricular quantitative drainage bottle, and specifically discloses the following technical content: a bottle body, a negative pressure pipe connected to the top of the bottle body, a liquid inlet pipe and a liquid outlet pipe connected to the bottom of the bottle body, a partition plate in the bottle body, a liquid falling port opened near the edge of the partition plate, a short pipe connected to the liquid falling port, an adjusting switch provided on the outer wall of the bottle body for controlling the opening and closing of the short pipe, a balance pipe provided on the partition plate and communicating with the space below the partition plate, and a switch valve installed at the end of the balance pipe extending out of the bottle body. The structure divides the bottle body into two parts by setting a partition plate, and sets a liquid falling port and a balance pipe on the partition plate. Under normal circumstances, the accumulated liquid flows from the liquid falling port to the lower space, and when the lower space is full, the subsequent one-time liquid discharge can be completed. The negative pressure machine does not need to be paused during the whole process, and continuous liquid pumping can be realized. Moreover, each time the accumulated liquid is full of the lower space, realizing quantitative liquid discharge.

[0003] Continuing to refer to the prior art, for example, the patent document with the patent number CN221618067U, and specifically discloses a anti-clogging ventricular drainage device, which comprises a drainage tube and a drainage bag, an external wall of an end of the drainage tube is provided with a drainage hole, a right side top end of the drainage tube is clamped and connected with a first hose, an external wall of the fixed clamp is connected with a surrounding anti-folding sleeve, and the drainage bag is arranged at a right end of the first hose. The anti-clogging ventricular drainage device is provided with a fixed clamp on the external wall of the first hose. The fixed clamp is in a threaded type and surrounds the external wall of the first hose. The thickness of the external wall of the first hose is increased without affecting the flexibility of the first hose, so that the clogging caused by the bending of the first hose due to the adjustment of the position and height of the first hose is reduced. Since the drained cerebrospinal fluid contains protein and blood clots and other thick substances, the internal wall of the first hose can be clogged. The external wall of the first hose is extruded by the surrounding extrusion ring, and the clogging of the internal wall of the first hose can be removed.

[0004] It can be seen that in the above prior art, the negative pressure generating structure is not effectively improved, so that the negative pressure that can be generated by the negative pressure structure cannot be effectively fine-tuned according to the actual situation, and the structure cooperation between the negative pressure generating environment and the liquid storage tank is improved to better adapt to the ventricular drainage. SUMMARY

[0005] The application aims to provide a ventricular drainage regulator which can generate and fine-tune a negative pressure environment through structural adjustment, effectively ensure the stability of the negative pressure environment, increase and fine-tune the negative pressure, and has better flexibility and adaptability, and is convenient for ventricular drainage and observing the flow volume.

[0006] To achieve the above-mentioned purpose, the application is implemented by the following technical scheme:

[0007] The application discloses a ventricular drainage regulator, which comprises a liquid storage tank, a tank connecting pipe of the liquid storage tank, a threaded structure at the top opening position of the liquid storage tank, a bottom end of the liquid storage tank connected to a negative pressure tank through the threaded structure, a main piston in the negative pressure tank, a main piston rod connected to the main piston, an auxiliary rack connected to the main piston rod which extends from a tank top plate and is fixed to the top of the negative pressure tank, the auxiliary rack in meshing transmission with a driving gear connected to a rack driving motor, a main cavity formed in the negative pressure tank, a negative pressure auxiliary pipe fixed to the negative pressure tank, an auxiliary cavity formed in the negative pressure auxiliary pipe, the auxiliary cavity in communication with the main cavity through a cavity connecting hole, an auxiliary piston in the auxiliary cavity, the auxiliary piston in an initial state to block the cavity connecting hole, an auxiliary piston rod connected to the auxiliary piston, a linkage rod connected to the auxiliary piston rod, a linkage plate connected to the linkage rod, and the linkage plate connected to the auxiliary rack.

[0008] As one of the preferred technical schemes of the application, the top end of the main piston rod is connected to an auxiliary rack, the auxiliary rack has a U-shaped structure, a plurality of rod adjusting holes are arranged at the middle part notch position of the auxiliary rack and are distributed in the length direction of the auxiliary rack, a rod is arranged in the rod adjusting hole and connected to a linkage hole plate through the rod, the linkage hole plate is arranged in the middle part notch of the auxiliary rack and connected to a linkage plate, and the middle part of the linkage plate has a through hole for accommodating the linkage hole plate.

[0009] As one of the preferred technical schemes of the application, the bottom end of the linkage plate is fixedly connected to a linkage rod, the bottom end of the linkage rod is connected to a linkage ring, the auxiliary piston rod passes through the inside of the linkage ring and is fixedly connected to an auxiliary rod ring at the top end, and the auxiliary rod ring and the auxiliary piston rod form a T-shaped structure.

[0010] As one of the preferred technical schemes of the application, the auxiliary piston rods are distributed in the circumferential direction of the negative pressure tank and have increasing lengths, the distance between the bottom surface of the auxiliary rod ring and the top surface of the tank top plate increases in sequence, and the bottom surface of the linkage ring and the top surface of the tank top plate are attached in the initial state.

[0011] As one of the preferred technical solutions of the present application, the linkage plate is circumferentially distributed with a plurality of threadedly connected guide adjusting rods, the bottom end of the guide adjusting rod is threadedly connected with a piston guide rod, the piston guide rod has a blind hole threadedly connected with the guide adjusting rod; the piston guide rod extends into the interior of the negative pressure tank from the tank top plate and is connected with the main piston.

[0012] As one of the preferred technical solutions of the present application, the negative pressure tank is provided with a sealing clamping groove at the bottom end, the sealing clamping groove accommodates the top end of the liquid storage tank, and a sealing ring body is arranged in the interior of the sealing clamping groove.

[0013] As one of the preferred technical solutions of the present application, the negative pressure tank is provided with a plurality of tank body connecting plates at the outer wall between the circumferentially adjacent negative pressure auxiliary pipes, the tank body connecting plates are distributed in the height direction of the negative pressure tank; the tank body connecting plate is provided with a connecting hole connected with a connecting plate, the connecting plate is connected with an adjusting frame, the bottom end of the adjusting frame is integrally provided with a supporting rod, and the bottom end of the supporting rod is fixedly connected with a base.

[0014] As one of the preferred technical solutions of the present application, the adjusting frame is provided with a sliding guide rail, the sliding guide rail is slidingly provided with a sliding adjusting sleeve, the sliding adjusting sleeve and the sliding guide rail are provided with a plurality of connecting adjusting holes on both sides in the length direction, and the sliding adjusting sleeve and the sliding guide rail are connected through the aligned connecting adjusting holes and fasteners.

[0015] As one of the preferred technical solutions of the present application, the adjusting frame and the sliding guide rail are distributed with a plurality of pipe penetrating holes in the length direction, and the pipe penetrating holes are distributed on the end faces facing and away from the negative pressure tank.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The present application can realize the negative pressure of the main cavity in the negative pressure tank, and at the same time of realizing the negative pressure of the main cavity, the auxiliary cavity in the negative pressure auxiliary pipe is used to realize the fine adjustment of the negative pressure, so as to meet the slow absorption of the liquid in the drainage pipe through the tank body connecting pipe of the liquid storage tank, meet the flow demand of the liquid in the drainage pipe, and realize the observation of the liquid storage through the transparent structure design of the liquid storage tank. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure of the present application Figure 1 .

[0019] Figure 2 is Figure 1 the local enlarged view of part I in

[0020] Figure 3 is the overall structure of the present application Figure 2 .

[0021] Figure 4 is Figure 3 is a partial enlarged view of part II in the figure.

[0022] Figure 5 is a top view of the present application.

[0023] Figure 6 is Figure 5 is a sectional view of the position and direction shown by A-A in the figure.

[0024] Figure 7 is Figure 6 is a partial enlarged view of part III in the figure.

[0025] Figure 8 is Figure 5 is a sectional view of the position and direction shown by B-B in the figure.

[0026] In the figure: 1, base; 2, support rod; 3, adjusting frame; 4, pipe passing hole; 5, connecting plate; 6, liquid storage tank; 7, negative pressure tank; 8, tank body connecting plate; 9, negative pressure auxiliary pipe; 10, tank top plate; 11, linkage plate; 12, top plate connecting piece; 13, linkage rod; 14, linkage ring; 15, auxiliary piston rod; 16, auxiliary rod ring; 17, piston guide rod; 18, motor plate; 19, drive gear; 20, auxiliary rack; 21, rod body adjusting hole; 22, rack drive motor; 23, linkage hole plate; 24, guide adjusting rod; 25, main piston rod; 26, piston sealing sleeve; 27, sliding adjusting sleeve; 28, sliding guide rail; 29, connecting adjusting hole; 30, main piston; 31, auxiliary piston; 32, cavity connecting hole; 33, auxiliary cavity; 34, main cavity; 35, tank body connecting pipe; 36, sealing clamping groove; 37, piston limit block. DETAILED DESCRIPTION

[0027] The technical solutions described in the present application will be further described and explained in combination with the accompanying drawings and examples. Example 1

[0028] As Figures 1 to 8As shown, the ventricular drainage regulator comprises a liquid storage tank 6 made of transparent medical material, the bottom end of which is blocked and the top end of which is open, and a tank connecting pipe 35 is connected to the position close to the top end opening, and the tank connecting pipe 35 is communicated with the drainage pipe. The top end of the liquid storage tank 6 has a threaded structure, and the liquid storage tank 6 is connected through the threaded structure at the bottom end of the negative pressure tank 7. The negative pressure tank 7 is a hollow structure with both ends open, and a plurality of negative pressure auxiliary pipes 9 are distributed in the circumferential direction of the negative pressure tank 7, the bottom end of the negative pressure auxiliary pipe 9 is blocked, and the top end is open. The top end of the negative pressure tank 7 is connected with a tank top plate 10, and the tank top plate 10 is connected with the negative pressure tank 7 through a top plate connecting piece 12, and the tank top plate 10 is used to block the top end opening of the negative pressure tank 7 and the negative pressure auxiliary pipe 9.

[0029] The inside of the negative pressure tank 7 forms a main cavity 34, and the inside of the main cavity 34 is provided with a main piston 30, the main piston 30 is connected with a main piston rod 25, the top end of the main piston rod 25 extends out of the tank top plate 10 and is connected with an auxiliary rack 20; in the initial state, the main piston 30 is located below the cavity connecting hole 32, the cavity connecting hole 32 is communicated with an auxiliary cavity 33, the auxiliary cavity 33 is located in the negative pressure auxiliary pipe 9, and an auxiliary piston 31 is placed in the auxiliary cavity 33, the auxiliary piston 31 is located at the position of the cavity connecting hole 32 and blocks the cavity connecting hole 32 in the initial state. The auxiliary piston 31 is connected with an auxiliary piston rod 15, the auxiliary piston rod 15 extends out of the top tank top plate 10 and is connected with an auxiliary rod ring 16.

[0030] The auxiliary rod ring 16 is located in the space formed by the linkage rod 13, the bottom end of the linkage rod 13 is connected with a linkage ring 14, the linkage ring 14 slides along the auxiliary piston rod 15 and drives the auxiliary rod ring 16 to move after contacting the auxiliary rod ring 16. The top end of the linkage rod 13 is connected with a linkage plate 11, and the linkage plate 11 is arranged in parallel with the tank top plate 10.

[0031] A through hole is arranged at the middle position of the linkage plate 11, and a linkage hole plate 23 is arranged in the through hole, the linkage hole plate 23 is located at the middle notch position of the auxiliary rack 20, the auxiliary rack 20 is a U-shaped structure, and tooth structures are respectively machined on the two side end faces, the auxiliary rack 20 is engaged and driven through the tooth structure and the corresponding position of the driving gear 19, the driving gear 19 is connected with a rack driving motor 22, and the rack driving motor 22 is located on a motor plate 18, the motor plate 18 extends into the tank top plate 10 below from the through hole at the middle position of the linkage plate 11.

[0032] The auxiliary rack 20 has several rod adjustment holes 21 machined on the end face of the central notch. The rod adjustment holes 21 are connected to the linkage plate 23 through the rod. The rod is located on the bottom surface of the linkage plate 23, and a groove for accommodating the top of the rod is machined at the connection position between the linkage plate 23 and the rod. Example 2

[0033] like Figures 1 to 8 As shown, in the ventricular drainage regulator, the auxiliary piston rod 15 is distributed circumferentially in the negative pressure tank 7, and the height of the auxiliary piston rod 15 extending from the top of the tank top plate 10 in the circumferential direction of the negative pressure tank 7 increases sequentially, and the distance between the bottom surface of the auxiliary rod ring 16 and the top surface of the tank top plate 10 increases; in the initial state, the bottom surface of the linkage ring 14 is in contact with the top surface of the tank top plate 10.

[0034] The main piston 30 has several piston guide rods 17 distributed circumferentially around the main piston rod 25. The piston guide rods 17 extend from the tank top plate 10 and are threadedly connected to the guide adjustment rod 24. The tank top plate 10 has a threaded hole on its top surface that is threadedly connected to the guide adjustment rod 24. The guide adjustment rod 24 is threadedly connected to the linkage plate 11.

[0035] The structure and connection structure of the remaining parts are the same as those described in the foregoing embodiments. Those skilled in the art can understand the solution described in this embodiment based on the foregoing embodiments. Example 3

[0036] like Figures 1 to 8 As shown, the ventricular drainage regulator also includes piston sealing sleeves 26 that mate with the main piston rod 25 and the auxiliary piston rod 15 at the extension positions of the top plate 10 of the tank. Several sealing rings are distributed inside the piston sealing sleeves 26 along the height direction. A piston limiting block 37 is provided at the connection position between the main piston 30 and the piston guide rod 17, and the piston limiting block 37 is located on the top surface of the main piston 30. A sealing groove 36 is provided at the connection position between the negative pressure tank 7 and the top surface of the storage tank 6, and a sealing ring body is provided inside the sealing groove 36.

[0037] The structure and connection structure of the remaining parts are the same as those described in the foregoing embodiments. Those skilled in the art can understand the solution described in this embodiment based on the foregoing embodiments. Example 4

[0038] like Figures 1 to 8As shown, the ventricular drainage regulator, the negative pressure tank 7 is provided with tank connecting plate 8 at the outer wall, the tank connecting plate 8 is located between adjacent negative pressure auxiliary pipe 9, and is distributed in the height direction of negative pressure tank 7;The tank connecting plate 8 is provided with a connecting hole, and is connected with the connecting plate 5 through the connecting hole and the fastener, the connecting plate 5 is fixed on the sliding adjusting sleeve 27, the sliding adjusting sleeve 27 slides on the sliding guide rail 28, a plurality of connecting adjustment holes 29 are arranged on the sliding adjusting sleeve 27 and the sliding guide rail 28, and the connecting adjustment holes 29 on the sliding adjusting sleeve 27 and the sliding guide rail 28 are connected and fixed through the fastener after alignment;The sliding guide rail 28 is integrally arranged with the adjusting frame 3, the sliding guide rail 28 and the adjusting frame 3 are both machined with a plurality of pipe penetrating holes 4 on the end face towards and away from the negative pressure tank 7, and the pipe penetrating holes 4 are distributed in the length direction of the adjusting frame 3 and the sliding guide rail 28;The bottom of the adjusting frame 3 is machined with a support rod 2, and the support rod 2 is integrally fixed with the adjusting frame 3, and the bottom end of the adjusting frame 3 is connected with the base 1.

[0039] The structures and connection structures of the remaining parts are the same as those described in the foregoing embodiments, and those skilled in the art can understand the scheme described in this embodiment on the basis of referring to the foregoing embodiments.

[0040] On the basis of the foregoing embodiments, the following paragraphs continue to describe the technical features involved therein and the functions and roles of the technical features in the technical scheme in detail, so as to help those skilled in the art fully understand the technical scheme and reproduce it.

[0041] In this application, the base 1 is placed on a horizontal plane, which can provide counterweight for the overall structure and ensure the stability of the overall structure.

[0042] In this application, the bottom end of the support rod 2 is fixedly connected with the base 1, which can realize the connection between the base 1 and the adjusting frame 3.

[0043] In this application, the adjusting frame 3 and the sliding guide rail 28 are integrally fixed, and the adjusting frame 3 and the sliding guide rail 28 are equal in length, and the pipe penetrating holes 4 are machined in the length direction of the adjusting frame 3 and the sliding guide rail 28, which are used to realize the penetration and limiting of the drainage tube.

[0044] In the application, the sliding guide rail 28 is in sliding connection with the sliding adjusting sleeve 27, and the connecting adjusting holes 29 are processed on the sides of the two, the connecting adjusting holes 29 on the sliding guide rail 28 and the sliding adjusting sleeve 27 are aligned and connected through fasteners, the sliding guide rail 28 can facilitate the position adjustment of the sliding adjusting sleeve 27, and the sliding adjusting sleeve 27 and the sliding guide rail 28 are aligned and connected through fasteners to fix the relative position of the two. The connecting plate 5 is fixedly connected on the sliding adjusting sleeve 27, and the connecting plate 5 can realize the adjustment of the relative position of the negative pressure tank 7 and the liquid storage tank 6 during the movement of the sliding adjusting sleeve 27.

[0045] In the application, the connecting plate 5 is connected with the negative pressure tank 7 through the tank body connecting plate 8, the tank body connecting plate 8 is located between adjacent negative pressure auxiliary pipes 9, and the tank body connecting plate 8 is fixedly connected with the negative pressure tank 7 and the negative pressure auxiliary pipe 9. The tank body connecting plate 8 is distributed in the height direction of the negative pressure tank 7. The connecting plate 5 can be connected with different tank body connecting plates 8. At the same time, the tank body connecting plate 8 can realize the protection of the negative pressure tank 7, avoiding the influence of external force on the negative pressure tank 7.

[0046] In the application, the negative pressure tank 7 is a circular column structure, and a through hole structure with two open ends is processed at the center axis position of the negative pressure tank 7, and a main cavity 34 is formed in the inside of the negative pressure tank 7. The main piston 30 is placed in the inside of the main cavity 34, and the outer wall of the main piston 30 is attached to the inner wall of the main cavity 34, so as to realize the negative pressure structure in the inside of the negative pressure tank 7 during movement. The negative pressure auxiliary pipe 9 protruding from the outer wall of the negative pressure tank 7 is distributed in the circumferential direction of the negative pressure tank 7, the inside of the negative pressure auxiliary pipe 9 is provided with an auxiliary cavity 33, the auxiliary cavity 33 is provided with a cavity connecting hole 32 at the position close to the bottom, and the cavity connecting hole 32 is used to realize the communication between the auxiliary cavity 33 and the main cavity 34. The top end of the negative pressure auxiliary pipe 9 is open and flush with the top end of the negative pressure tank 7. The top end openings of the negative pressure tank 7 and the negative pressure auxiliary pipe 9 are plugged by the tank top plate 10, and the tank top plate 10 is connected with the negative pressure tank 7 and the negative pressure auxiliary pipe 9 through the top plate connecting piece 12. The tank top plate 10 can cooperate with the main piston 30 and the auxiliary piston 31 to form a negative pressure structure in the inside of the auxiliary cavity 33 and the main cavity 34. The auxiliary piston 31 is placed in the auxiliary cavity 33 in the negative pressure auxiliary pipe 9, and the auxiliary piston 31 is located at the bottom surface of the negative pressure auxiliary pipe 9 in the initial state and can plug the tank body connecting pipe 35. The main piston 30 is located below the cavity connecting hole 32 in the initial state.

[0047] In the application, the main piston 30 is connected with the main piston rod 25, the top end of the main piston rod 25 extends out of the tank top plate 10, and a piston sealing sleeve 26 for improving the sealing performance is arranged at the connection position of the main piston rod 25 and the tank top plate 10, and a plurality of sealing rings are arranged at the connection position of the main piston rod 25 and the tank top plate 10.

[0048] In the application, the top end of the main piston rod 25 is integrally provided with an auxiliary rack 20, the auxiliary rack 20 is a U-shaped structure plate body, the front and rear end faces on both sides of the middle part of the auxiliary rack 20 are provided with tooth structures, and are respectively engaged with the corresponding driving gears 19, the driving gears 19 are driven by a rack driving motor 22, the rack driving motor 22 is located on a motor plate 18, the motor plate 18 is arranged perpendicularly to the tank top plate 10 and is arranged on both sides of the auxiliary rack 20. The rack driving motor 22 realizes the output of the power of the two driving gears 19 on the same side through a double-end output gear box, so as to realize the power supply of the two driving gears 19 on the same side to the auxiliary rack 20 in the lifting direction. Since the rack driving motor 22 drives the auxiliary rack 20 to rise by the same height through the driving gears 19, the main piston 30 connected with the auxiliary rack 20 rises by the same height in the main chamber 34, and the main chamber 34 cooperates with the main piston 30 to generate a corresponding negative pressure in the liquid storage tank 6. Similarly, after the auxiliary piston 31 and the auxiliary chamber 33 move following the linkage plate 11, a corresponding negative pressure is generated in the liquid storage tank 6. A digital pressure sensor is arranged at the connection position of the negative pressure tank 7 and the liquid storage tank 6, the digital pressure sensor can facilitate the operator to observe the negative pressure of the internal space formed by the negative pressure tank 7 and the liquid storage tank 6, so as to facilitate the operator to manually start and stop the rack driving motor 22. The negative pressure environment formed by the auxiliary piston 31, the auxiliary piston rod 15 and the auxiliary chamber 33 can cooperate with the negative pressure environment formed by the main piston rod 25, the main piston 30 and the main chamber 34, so as to realize the sequential increase of the negative pressure value formed under the same stroke of the auxiliary rack 25.

[0049] In the application, the auxiliary rack 20 is uniformly provided with a plurality of rod adjusting holes 21 inside the middle part, and the rod adjusting holes 21 are distributed in the length direction of the auxiliary rack 20. Rods are inserted and fixed in the rod adjusting holes 21, the top of the rod is connected with a linkage hole plate 23, and the linkage hole plate 23 is provided with a groove structure matched with the rod at the position corresponding to the rod. The auxiliary rack 20 can realize the connection of the rod adjusting holes 21 at different positions, so as to realize the adjustment of the position of the linkage plate 11 relative to the tank top plate 10. The linkage hole plate 23 is located at the middle through hole position of the linkage plate 11, so as to realize the cooperation with the rod and facilitate being driven by the rod in the rising stage.

[0050] In the application, the linkage plate 11 is arranged above and parallel to the tank top plate 10. The linkage plate 11 is provided with a plurality of guide adjusting rods 24 distributed in the circumferential direction of the central through hole. The guide adjusting rod 24 is connected with the linkage plate 11 through screw thread connection. The bottom end of the guide adjusting rod 24 is screw thread connected with the top end of the piston guide rod 17. For this purpose, a screw thread hole is processed at the top end of the piston guide rod 17. In the above structure, the guide adjusting rod 24 can realize the connection of the linkage plate 11 with the piston guide rod 17, thereby realizing the linkage of the two. The guide adjusting rod 24 is screw thread connected, which can facilitate the adjustment of the relative position between the two, and then cooperates with the linkage hole plate 23, the rod body adjusting hole 21 and the rod body structure to realize the stability of the linkage plate 11 and its linkage structure.

[0051] In the application, the linkage plate 11 is arranged above and parallel to the tank top plate 10. The linkage plate 11 is arranged above and parallel to the tank top plate 10. The linkage plate 11 is provided with a plurality of guide adjusting rods 24 distributed in the circumferential direction of the central through hole. The guide adjusting rod 24 is connected with the linkage plate 11 through screw thread connection. The bottom end of the guide adjusting rod 24 is screw thread connected with the top end of the piston guide rod 17. For this purpose, a screw thread hole is processed at the top end of the piston guide rod 17. In the above structure, the guide adjusting rod 24 can realize the connection of the linkage plate 11 with the piston guide rod 17, thereby realizing the linkage of the two. The guide adjusting rod 24 is screw thread connected, which can facilitate the adjustment of the relative position between the two, and then cooperates with the linkage hole plate 23, the rod body adjusting hole 21 and the rod body structure to realize the stability of the linkage plate 11 and its linkage structure.

[0052] In the application, the auxiliary piston rod 15 is distributed in the circumferential direction of the negative pressure tank 7. One of the auxiliary piston rods 15 has the lowest height extending out of the tank top plate 10, and then the height of the auxiliary piston rod 15 extending out of the tank top plate 10 gradually increases in the circumferential direction of the negative pressure tank 7. Specifically, the distance between the bottom end of the auxiliary rod ring 16 and the top surface of the tank top plate 10 gradually increases in the circumferential direction of the negative pressure tank 7; the distance between the top end surface of the auxiliary piston rod 15 and the top end surface of the tank top plate 10 gradually increases in the circumferential direction of the negative pressure tank 7. The connection position of the auxiliary piston rod 15 and the tank top plate 10 also needs to be provided with a piston sealing sleeve 26 structure matched therewith to meet the sealing requirement.

[0053] In the application, the negative pressure tank 7 is provided with a sealing clamping groove 36 at the connecting position with the top end of the liquid storage tank 6, the top end of the liquid storage tank 6 extends into the sealing clamping groove 36 and contacts with the sealing ring body in the sealing clamping groove 36, the sealing clamping groove 36 can realize the sealing at the connecting position and can avoid the damage of the main piston 30 caused by the excessive rotation of the liquid storage tank 6.

[0054] In the application, the main piston 30 is distributed with a plurality of piston guide rods 17 in the circumference of the main piston rod 25, the piston guide rods 17 are used to assist in realizing the stability of the main piston 30 and the main piston rod 25.

[0055] In the application, the top surface of the main piston 30 at the connecting position with the piston guide rod 17 is provided with a piston limiting block 37, the piston limiting block 37 is a rubber block body, which can realize the protection of the main piston rod 25 and avoid the possible hard collision with the tank top plate 10.

[0056] In the use process of the application, the liquid storage tank 6 and the negative pressure tank 7 are screwed through the threaded structure, after the liquid storage tank 6 contacts with the sealing clamping groove 36, the liquid storage tank 6 cannot be further screwed and stopped. The tank body connecting pipe 35 of the liquid storage tank 6 is inserted with the drainage pipe, which can facilitate the flow of liquid. The liquid storage tank 6 is made of transparent material, which can facilitate the observation of the liquid capacity.

[0057] The rack drive motor 22 starts to start, drives the driving gear 19 to move through the gear box, the driving gear 19 is engaged with the auxiliary rack 20, thereby driving the auxiliary rack 20 to move upward. The upward movement of the auxiliary rack 20 can drive the main piston rod 25 connected thereto to move upward, the upward movement of the main piston rod 25 can drive the main piston 30 connected at the bottom to move upward, the upward movement of the main piston 30 can form a negative pressure structure in the inside of the liquid storage tank 6, so as to facilitate the inflow of liquid through the tank body connecting pipe 35.

[0058] The engagement transmission of the driving gear 19 and the auxiliary rack 20 can drive the main piston 30 to move slowly upward. In the process of upward movement, the auxiliary rack 20 drives the linkage hole plate 23 upward through the rod body connected with the rod body adjusting hole 21, the upward movement of the linkage hole plate 23 can drive the linkage plate 11 connected thereto to move upward, the linkage plate 11 can drive the auxiliary piston rod 15 and the auxiliary rod ring 16 distributed in the circumference of the negative pressure tank 7 to move upward in sequence through the linkage rod 13 and the linkage ring 14, thereby forming a negative pressure environment in the inside of the negative pressure auxiliary pipe 9, the auxiliary chamber 33 in the inside of the negative pressure auxiliary pipe 9 is communicated with the main chamber 34 through the tank body connecting pipe 35, so as to can also act on the main chamber 34 in the negative pressure tank 7 with the negative pressure environment, realizing the fine adjustment of the negative pressure environment in the main chamber 34.

[0059] The linkage plate 11 is connected with the piston guide rod 17 through the guide adjusting rod 24, and the piston guide rod 17 can make the linkage plate 11 move together with the main piston 30, thereby ensuring the stable movement of the main piston 30.

[0060] Before use, the combination of the liquid storage tank 6 and the negative pressure tank 7 is connected with the connecting plate 5 through the tank body connecting plate 8, and the height adjustment of the combination of the negative pressure tank 7 and the liquid storage tank 6 relative to the base 1 is realized by adjusting the relative position of the sliding adjusting sleeve 27 and the sliding guide rail 28.

[0061] Finally, although the best embodiment is adopted in the description of the present application, the skilled in the art can still understand that the technical scheme of the present application is extended under the technical idea of the present application, and should be understood as still within the protection scope of the present application.

Claims

1. A ventricular shunt regulator comprising a liquid storage tank (6), the liquid storage tank (6) having a tank body connecting pipe (35) located at a top opening position of the liquid storage tank (6), and a threaded structure is further arranged at the top opening of the liquid storage tank (6), characterized in that: The liquid storage tank (6) is connected to the bottom end of the negative pressure tank (7) through a threaded structure, the inside of the negative pressure tank (7) is provided with a main piston (30), the main piston (30) is connected with a main piston rod (25), the main piston rod (25) extends out from the tank top plate (10) and is connected with an auxiliary rack (20), the tank top plate (10) is located at the top opening of the negative pressure tank (7) and is fixedly connected with the negative pressure tank (7); the auxiliary rack (20) is in meshing transmission with a driving gear (19), the driving gear (19) is connected with a rack driving motor (22); the negative pressure tank (7) forms a main cavity (34) inside, the negative pressure tank (7) is circumferentially distributed with a negative pressure auxiliary pipe (9) fixedly integrated, the negative pressure auxiliary pipe (9) forms an auxiliary cavity (33) inside, the auxiliary cavity (33) is in communication with the main cavity (34) through a cavity connecting hole (32); the auxiliary cavity (33) is provided with an auxiliary piston (31) inside, the auxiliary piston (31) blocks the cavity connecting hole (32) in the initial state, the auxiliary piston (31) is connected with an auxiliary piston rod (15), the auxiliary piston rod (15) is connected with a linkage rod (13), the linkage rod (13) is connected with a linkage plate (11), the linkage plate (11) is connected with the auxiliary rack (20); The top end of the main piston rod (25) is connected with the auxiliary rack (20), the auxiliary rack (20) is a U-shaped structure, a plurality of rod body adjusting holes (21) are arranged at the middle part gap position of the auxiliary rack (20), the rod body adjusting holes (21) are distributed in the length direction of the auxiliary rack (20); a rod body is arranged in the rod body adjusting hole (21) and connected with a linkage hole plate (23) through the rod body; the linkage hole plate (23) is located in the middle part gap of the auxiliary rack (20) and connected with the linkage plate (11); the middle part position of the linkage plate (11) has a through hole for accommodating the linkage hole plate (23); The bottom end of the linkage plate (11) is fixedly connected with the linkage rod (13), the bottom end of the linkage rod (13) is connected with a linkage ring (14), the auxiliary piston rod (15) penetrates out from the inside of the linkage ring (14) and is fixedly connected with an auxiliary rod ring (16) at the top end, the auxiliary rod ring (16) and the auxiliary piston rod (15) form a T-shaped structure.

2. The ventricular shunt regulator of claim 1, wherein: The auxiliary piston rod (15) is circumferentially distributed in the negative pressure tank (7) and the length increases in turn, the distance between the bottom surface of the auxiliary rod ring (16) and the top surface of the tank top plate (10) increases in turn; the bottom surface of the linkage ring (14) and the top surface of the tank top plate (10) are attached in the initial state.

3. The ventricular shunt regulator of claim 1, wherein: The linkage plate (11) is circumferentially distributed with a plurality of screw-connected guide adjusting rods (24), the bottom end of the guide adjusting rod (24) is screw-connected with a piston guide rod (17), the piston guide rod (17) has a blind hole screw-connected with the guide adjusting rod (24); the piston guide rod (17) extends into the inside of the negative pressure tank (7) from the tank top plate (10) and is connected with the main piston (30).

4. The ventricular shunt regulator of claim 1, wherein: The negative pressure tank (7) is provided with a sealing clamping groove (36) at the bottom end, the sealing clamping groove (36) contains the top end of the liquid storage tank (6), and a sealing ring body is arranged inside the sealing clamping groove (36).

5. The ventricular shunt regulator of any one of claims 1 to 4, wherein: The negative pressure tank (7) is provided with a plurality of tank connecting plates (8) at the outer wall between the circumferentially adjacent negative pressure auxiliary pipes (9), the tank connecting plates (8) are distributed in the height direction of the negative pressure tank (7); the tank connecting plates (8) are provided with connecting holes connected with the connecting plates (5), the connecting plates (5) are connected with the adjusting frame (3), the bottom end of the adjusting frame (3) is provided with an integral supporting rod (2), and the bottom end of the supporting rod (2) is fixedly connected with the base (1).

6. The ventricular shunt regulator of claim 5, wherein: The adjusting frame (3) is provided with a sliding guide rail (28), the sliding guide rail (28) is provided with a sliding adjusting sleeve (27) slidingly, the sliding adjusting sleeve (27) and the sliding guide rail (28) are provided with a plurality of connecting adjusting holes (29) on both sides in the length direction, and the sliding adjusting sleeve (27) and the sliding guide rail (28) are connected through the aligned connecting adjusting holes (29) and fasteners.

7. The ventricular shunt regulator of claim 6, wherein: The adjusting frame (3) and the sliding guide rail (28) are distributed with a plurality of pipe penetrating holes (4) in the length direction, and the pipe penetrating holes (4) are distributed on the end faces facing and away from the negative pressure tank (7).

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