Flow velocity control device of ventricular drainage tube

Abstract

The invention relates to the field of medical drainage, and discloses a ventricular drainage tube flow rate control device which comprises an adjusting assembly. A shunting assembly; a constant speed assembly; and a one-way valve and a movable assembly. By installing the newly designed movable assembly, the circular plate can extrude the second elastic piece after being stressed, the second elastic piece can be folded in the rectangular groove until the second elastic piece and the circular plate form a complete plane, and in the folding process of the second elastic piece, the circular plate can be close to the layering plate through the groove under the guide of the convex block, so that the layering effect is improved. When the water inlet pipe is closer to the layering plate, the liquid is spread on the top of the layering plate, the flowing speed and flow rate from the second round hole are smaller, and when the water inlet pipe is in complete contact with the layering plate, no gap exists between the water inlet pipe and the layering plate, so that the closing effect is achieved. Accurate control is difficult, and mistaken switching is easy to occur, so that medical risks are generated.

Description

Technical Field

[0001] This application relates to the technical field of medical drainage, and particularly to a flow rate control device for a ventricular drainage tube. Background Art

[0002] A ventricular drainage tube is a medical device used to treat ventricular obstruction or hydrocephalus. It is implanted into the ventricle through surgery to drain the accumulated cerebrospinal fluid outside the body. It is usually made of medical silicone rubber, with circular white scale marking lines on the outer wall of the tube. The head end of the drainage tube can be visualized by X-ray, which is convenient for doctors to accurately judge the length of the drainage tube entering and exiting. It is mainly used for draining the fluid accumulated in the ventricle, exudate after surgery, and fluid formed for other reasons. It is commonly used to treat hydrocephalus. By draining cerebrospinal fluid from the lateral ventricle to the outside, it reduces intracranial pressure and alleviates symptoms.

[0003] During the use of the ventricular drainage tube, if the drainage is too fast, it may cause the intracranial pressure to drop too quickly, resulting in ventricular collapse, affecting brain function, and even leading to serious complications. However, the existing ventricular drainage devices only use methods such as compression wheels or plastic buckles to control the flow rate by externally squeezing and deforming the rubber hose. When the internal gap of the tube is smaller, the flow rate inside the tube is slower. However, this control method is difficult to accurately control and is prone to accidental switching, thus generating medical risks. Summary of the Invention

[0004] This application proposes a flow rate control device for a ventricular drainage tube, which has the advantage of accurate control and is used to solve the problems of inaccurate control of existing devices and medical risks caused by accidental switching.

[0005] To achieve the above object, this application adopts the following technical solution. A flow rate control device for a ventricular drainage tube includes an adjustment component. The inner bottom of the adjustment component is threadedly connected with a shunt component, and further includes,

[0006] A linkage uniform water outlet mechanism, which includes a uniform component. The uniform component is fixedly installed inside the shunt component, and a check valve is fixedly connected to the bottom of the shunt component.

[0007] A movable component, which is movably inserted into the adjustment component. The movable component includes a circular plate. Three grooves are annularly formed on the circular plate. A water inlet pipe is inserted into the middle of the circular plate. Three rectangular grooves are annularly formed at the bottom of the circular plate. Three second elastic pieces are movably hinged in the three rectangular grooves. The above structure can accurately control the flow rate during operation.

[0008] Preferably, when the three second elastic pieces are subjected to force extrusion, they can all be folded into the three rectangular grooves and form a complete plane with the bottom surface of the circular plate. The above structure can form a complete bottom surface during operation.

[0009] Preferably, the adjusting assembly includes a top cover. A first round hole is formed in the middle position of the top cover. A plurality of long grooves are annularly formed on the outer edge of the top cover. A plurality of first elastic pieces are fixedly connected inside the top cover. The above structure can elastically squeeze during operation.

[0010] Preferably, the water inlet pipe passes through the first round hole. The plurality of first elastic pieces are fixedly installed at equal intervals in an annular array on the inner top side of the top cover.

[0011] Preferably, the flow splitting assembly includes a round shell. Threads are formed on the outer edge of the round shell. A fixing ring is fixedly installed on the outer edge of the round shell. A layered plate is fixedly installed inside the round shell. A plurality of second round holes are annularly arranged on the upper surface of the layered plate. Three convex blocks are fixedly installed on the inner side of the round shell. The above structure can split the liquid during operation.

[0012] Preferably, the bottoms of the plurality of first elastic pieces abut against the top of the round plate. The bottoms of the three second elastic pieces abut against the top of the layered plate.

[0013] Preferably, the layered plate divides the round shell into upper and lower chambers. The longitudinal height of the lower chamber is greater than that of the upper chamber. The outer edges of the three convex blocks are movably clamped with three grooves of the round plate.

[0014] Preferably, the uniform speed assembly includes a fixed shaft. The fixed shaft is fixedly installed at the bottom of the layered plate. A rotating ring is movably clamped at the middle position of the fixed shaft. A first conical spring is fixedly connected to the outer edge of the rotating ring. The tail end of the first conical spring is fixedly connected to a fan blade. The above structure can evenly split the liquid during operation.

[0015] Preferably, the one-way valve includes a housing. A connecting pipe is fixedly connected to the bottom of the housing. The connecting pipe is inserted into the bottom of the round shell. A plurality of semi-circular grooves are formed at the top of the connecting pipe. A circular table piece is movably installed inside the housing. A plurality of conical holes are annularly formed on the inner ring of the circular table piece. A plurality of plug heads are fixedly installed on the top side of the inner wall of the housing. A second conical spring is fixedly connected to the bottom of the circular table piece. The bottom of the second conical spring abuts against the bottom surface of the housing. An outlet pipe is fixedly connected to the bottom of the housing. The above structure can control the one-way flow of the liquid during operation.

[0016] Preferably, the plurality of conical holes are all annularly formed on the inclined surface of the circular table piece at an inclined angle. The top aperture of the plurality of conical holes is larger than the bottom aperture. When the circular table piece is at the topmost side, the plug heads installed on the inner wall of the housing will block the plurality of conical holes.

[0017] The beneficial effects of the present invention are as follows.

[0018] 1. The present invention is equipped with a newly designed movable component. During the folding process of the second elastic piece, the circular plate will approach the layered plate along the guide of the bump through the groove. When the water inlet pipe gets closer to the layered plate, the liquid will be flattened on the top of the layered plate, and the speed and flow rate of the liquid flowing in from the second round hole will be smaller. When the water inlet pipe is in full contact with the layered plate, there is no gap between the water inlet pipe and the layered plate, thus achieving the closing function, solving the problem that the existing flow rate control only adopts the external pressing method, which is difficult to accurately control and is prone to misoperation, thus generating medical risks.

[0019] 2. The present invention is equipped with a one-way valve. When the liquid flows towards the circular table piece, it will squeeze the second conical spring downward, driving the circular table piece to move downward, exposing multiple conical holes closed by the outer shell. The liquid will fall into the chamber formed between the circular table piece and the outer shell through the multiple conical holes. If the pipeline connected to the water outlet pipe is blocked, the liquid will accumulate in the chamber inside the outer shell and the circular table piece until it plays a lifting role on the circular table piece. The circular table piece rises to the top side and merges with the inner wall of the outer shell again to complete the sealing, realizing the function of one-way liquid flow.

[0020] 3. The present invention is equipped with a movable uniform component. When the liquid flows downward through the second round hole, it will push the fan blade to rotate around the fixed axis, playing a role of uniform flow distribution. When the liquid flow rate input into the second elastic piece is too large, the fan blade will first be impacted by the liquid. Under the impact force of the liquid, the first conical spring will be pulled and its range will become longer in the vertical direction. When the impact force is buffered, the fan blade rotates normally, preventing an excessive amount of liquid from suddenly surging in and causing problems such as the rotation and force-bearing offset being stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings forming a part of the specification depict the embodiments disclosed in the present application and, together with the specification, are used to explain the principles of the present application in a clear and understandable manner.

[0022] Referring to the drawings, the present disclosure can be more clearly understood according to the following detailed description, where

[0023] Figure 1 is the sectional view of the overall structure of the present invention;

[0024] Figure 2 is the schematic diagram of the overall structure of the present invention;

[0025] Figure 3 is the sectional view of the adjustment component structure of the present invention;

[0026] Figure 4 is the bottom view of the movable component structure of the present invention;

[0027] Figure 5 is the sectional view of the flow distribution component structure of the present invention;

[0028] Figure 6 This is the structural sectional view of the constant-speed component of the present invention;

[0029] Figure 7 This is the structural sectional view of the one-way valve of the present invention.

[0030] Among them, 1 is the adjustment component; 2 is the movable component; 3 is the flow splitting component; 4 is the constant-speed component; 5 is the one-way valve; 11 is the top cover; 12 is the first round hole; 13 is the long groove; 14 is the first elastic sheet; 21 is the circular plate; 22 is the groove; 23 is the water inlet pipe; 24 is the rectangular groove; 25 is the second elastic sheet; 31 is the circular shell; 32 is the thread; 33 is the fixing ring; 34 is the layered plate; 35 is the second round hole; 36 is the convex block; 41 is the fixed shaft; 42 is the rotating ring; 43 is the first conical spring; 44 is the fan blade; 51 is the outer shell; 52 is the connecting pipe; 53 is the semi-circular groove; 54 is the circular table piece; 55 is the conical hole; 56 is the second conical spring; 57 is the water outlet pipe. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0032] Please refer to Figures 1-7 , the embodiment of the present invention provides a flow rate control device for a ventricular drainage tube, including an adjustment component 1, the inner bottom of the adjustment component 1 is threadedly connected to a flow splitting component 3, and further includes a linkage constant-speed water outlet mechanism, which includes a constant-speed component 4, the constant-speed component 4 is fixedly installed inside the flow splitting component 3, and the bottom of the flow splitting component 3 is fixedly connected to a one-way valve 5;

[0033] A movable component 2, the movable component 2 is movably inserted inside the adjustment component 1, the movable component 2 includes a circular plate 21, three grooves 22 are annularly formed on the circular plate 21, a water inlet pipe 23 is inserted in the middle of the circular plate 21, three rectangular grooves 24 are annularly formed at the bottom of the circular plate 21, and three second elastic sheets 25 are movably hinged in the three rectangular grooves 24; when the three second elastic sheets 25 are squeezed by force, they can all be folded into the three rectangular grooves 24 and form a complete plane with the bottom surface of the circular plate 21;

[0034] When the circular plate 21 is stressed, it will squeeze the second elastic piece 25. The second elastic piece 25 will fold within the rectangular groove 24 until it forms a complete plane with the circular plate 21. During the folding process of the second elastic piece 25, the circular plate 21 will approach the lamination plate 34 under the guidance of the convex block 36 through the groove 22. When the water inlet pipe 23 is closer to the lamination plate 34, the liquid will be flattened on the top of the lamination plate 34, and the inflow speed and flow rate from the second round hole 35 will be smaller. When the water inlet pipe 23 is in full contact with the lamination plate 34, there is no gap between the water inlet pipe 23 and the lamination plate 34, thus achieving the closing function;

[0035] Among them, the adjustment component 1 includes a top cover 11. A first round hole 12 is opened at the middle position of the top cover 11. A plurality of long grooves 13 are annularly arranged at the outer edge of the top cover 11. A plurality of first elastic pieces 14 are fixedly connected inside the top cover 11; the water inlet pipe 23 passes through the first round hole 12, and the plurality of first elastic pieces 14 are fixedly installed in an annular equidistant array on the inner top side of the top cover 11;

[0036] The water inlet pipe 23 is in the liquid inlet direction. When it is necessary to control the liquid flow rate, the top cover 11 can be rotated clockwise. At this time, the plurality of first elastic pieces 14 will squeeze the circular plate 21 downward to control the liquid flow rate to slow down by reducing the gap between the circular plate 21 and the lamination plate 34;

[0037] Among them, the flow splitting component 3 includes a circular shell 31. Threads 32 are provided at the outer edge of the circular shell 31. A fixing ring 33 is fixedly installed at the outer edge of the circular shell 31. A lamination plate 34 is fixedly installed inside the circular shell 31. A plurality of second round holes 35 are annularly arranged on the upper surface of the lamination plate 34. Three convex blocks 36 are fixedly installed on the inner side of the circular shell 31; the bottoms of the plurality of first elastic pieces 14 are in contact with the top of the circular plate 21, and the bottoms of the three second elastic pieces 25 are in contact with the top of the lamination plate 34; the lamination plate 34 divides the circular shell 31 into upper and lower chambers. The longitudinal height of the lower chamber is greater than that of the upper chamber. The outer edges of the three convex blocks 36 are movably clamped with the three grooves 22 of the circular plate 21;

[0038] During the folding process of the second elastic piece 25, the circular plate 21 will approach the lamination plate 34 under the guidance of the convex block 36 through the groove 22. When the water inlet pipe 23 is closer to the lamination plate 34, the liquid will be flattened on the top of the lamination plate 34, and the inflow speed and flow rate from the second round hole 35 will be smaller. When the water inlet pipe 23 is in full contact with the lamination plate 34, there is no gap between the water inlet pipe 23 and the lamination plate 34, thus achieving the closing function. When the circular plate 21 is farther from the lamination plate 34, the inflow speed and flow rate of the liquid from the second round hole 35 will be greater;

[0039] Among them, the uniform-speed component 4 includes a fixed shaft 41, which is fixedly installed at the bottom of the layered plate 34. A rotating ring 42 is movably clamped at the middle position of the fixed shaft 41. A first conical spring 43 is fixedly connected to the outer edge of the rotating ring 42, and the tail end of the first conical spring 43 is fixedly connected to a fan blade 44;

[0040] When the liquid flows downward through the second round hole 35, it will push the fan blade 44 to rotate around the fixed shaft 41, playing a role in uniform-speed flow distribution. When the liquid flow rate input into the second elastic piece 25 is too large, the fan blade 44 will first be impacted by the liquid. Under the impact force of the liquid, the first conical spring 43 will be pulled, and its range will become longer in the vertical direction. After the impact force is buffered, the fan blade 44 rotates normally, preventing the problem that an excessive amount of liquid suddenly surges in, causing the rotating ring 42 to be offset and stuck due to the force;

[0041] Among them, the one-way valve 5 includes a housing 51. A connecting pipe 52 is fixedly connected to the bottom of the housing 51. The connecting pipe 52 is inserted into the bottom of the round shell 31. A plurality of semi-circular grooves 53 are opened at the top of the connecting pipe 52. A circular table piece 54 is movably installed inside the housing 51. A plurality of conical holes 55 are formed in the inner ring of the circular table piece 54. A plurality of plug heads are fixedly installed on the top side of the inner wall of the housing 51. A second conical spring 56 is fixedly connected to the bottom of the circular table piece 54, and the bottom of the second conical spring 56 abuts against the bottom surface of the housing 51. A water outlet pipe 57 is fixedly connected to the bottom of the housing 51; a plurality of conical holes 55 are all annularly opened on the inclined surface of the circular table piece 54 at an inclined angle, and the top aperture of each of the plurality of conical holes 55 is larger than the bottom aperture. When the circular table piece 54 is at the topmost side, the plug heads installed on the inner wall of the housing 51 will block the plurality of conical holes 55;

[0042] After the liquid is uniformly distributed by the uniform-speed component 4, it will uniformly flow into the circular table piece 54 through the semi-circular grooves 53, and will squeeze the second conical spring 56 downward, driving the circular table piece 54 to move downward, exposing the plurality of conical holes 55 blocked by the housing 51. The liquid will pass through the plurality of conical holes 55 and fall into the chamber formed between the circular table piece 54 and the housing 51. If the pipeline connected to the water outlet pipe 57 is blocked, the liquid will accumulate in the chamber inside the housing 51 and the circular table piece 54 until it exerts a lifting effect on the circular table piece 54. The circular table piece 54 rises to the topmost side and merges with the inner wall of the housing 51 again to complete the blockage, realizing the function of one-way liquid flow.

[0043] Working principle:

[0044] When using the present invention, first install the water inlet pipe 23 and the water outlet pipe 57 in the ventricular drainage tube. The water inlet pipe 23 is for the liquid inlet direction, and the water outlet pipe 57 is for the liquid outlet direction. When it is necessary to control the flow rate in the tube to become smaller during use, the top cover 11 can be rotated clockwise. At this time, multiple first elastic pieces 14 will squeeze the circular plate 21 downward. After the circular plate 21 is stressed, it will squeeze the second elastic piece 25, and the second elastic piece 25 will fold in the rectangular groove 24 until it forms a complete plane with the circular plate 21. During the folding process of the second elastic piece 25, the circular plate 21 will approach the layered plate 34 under the guidance of the convex block 36 through the groove 22. When the water inlet pipe 23 is closer to the layered plate 34, the liquid will be flattened on the top of the layered plate 34, and the speed and flow rate of the liquid flowing in from the second circular hole 35 will be smaller. When the water inlet pipe 23 is in complete contact with the layered plate 34, there is no gap between the water inlet pipe 23 and the layered plate 34, thus achieving the closing effect;

[0045] When the liquid flows downward through the second circular hole 35, it will push the fan blade 44 to rotate around the fixed shaft 41, playing a role of uniform flow distribution. When the liquid flow rate input into the second elastic piece 25 is too large, the fan blade 44 will first be impacted by the liquid. Under the impact force of the liquid, the first conical spring 43 will be pulled, and its range will become longer in the vertical direction. When the impact force is buffered, the fan blade 44 will rotate normally;

[0046] After the liquid is uniformly distributed by the uniform flow component 4, it will flow uniformly to the circular table piece 54 through the semi-circular groove 53, squeeze the second conical spring 56 downward, drive the circular table piece 54 to move downward, and expose multiple conical holes 55 blocked by the outer shell 51. The liquid will fall into the chamber formed between the circular table piece 54 and the outer shell 51 through the multiple conical holes 55. If the pipeline connected to the water outlet pipe 57 is blocked, the liquid will accumulate in the chamber inside the outer shell 51 and the circular table piece 54 until it plays a lifting role on the circular table piece 54. The circular table piece 54 rises to the topmost side and merges with the inner wall of the outer shell 51 again to complete the plugging, realizing the function of one-way liquid flow.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limitations. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A flow rate control device for a ventricular drainage tube, comprising a regulating component (1), characterized in that: The bottom inner side of the regulating component (1) is threadedly connected to a flow dividing component (3), and further comprises: A linked uniform-speed water outlet mechanism, comprising a uniform-speed component (4), wherein the uniform-speed component (4) is fixedly installed inside the flow diversion component (3), and a one-way valve (5) is fixedly connected to the bottom of the flow diversion component (3); A movable component (2), the movable component (2) is movably plugged into the interior of the regulating component (1), the movable component (2) comprises a circular plate (21), the circular plate (21) is provided with three grooves (22) in an annular shape, a water inlet pipe (23) is plugged into the middle of the circular plate (21), the bottom of the circular plate (21) is provided with three rectangular grooves (24) in an annular shape, and second spring plates (25) are movably hinged in the three rectangular grooves (24).

2. A flow rate control device for a ventricular drainage tube according to claim 1, characterized in that: The three second elastic sheets (25) can be folded into the three rectangular grooves (24) when subjected to force and squeeze, and form a complete plane with the bottom surface of the circular plate (21).

3. The flow rate control device for a ventricular drainage tube according to claim 1, characterized in that: The adjustment assembly (1) comprises a top cover (11), a first circular hole (12) is provided at the middle of the top cover (11), a plurality of long grooves (13) are provided in an annular shape at the outer edge of the top cover (11), and a plurality of first spring plates (14) are fixedly connected to the interior of the top cover (11).

4. A flow rate control device for a ventricular drainage tube according to claim 3, characterized in that: The water inlet pipe (23) passes through the first circular hole (12), and a plurality of the first elastic sheets (14) are fixedly mounted on the inner top side of the top cover (11) in a circular equidistant array.

5. The flow rate control device for a ventricular drainage tube according to claim 1, characterized in that: The flow dividing component (3) comprises a circular shell (31), the outer edge of the circular shell (31) is provided with a thread (32), a fixing ring (33) is fixedly installed on the outer edge of the circular shell (31), a layered plate (34) is fixedly installed inside the circular shell (31), a plurality of second circular holes (35) are provided in an annular array on the upper surface of the layered plate (34), and three protrusions (36) are fixedly installed on the inner side of the circular shell (31).

6. The flow rate control device for a ventricular drainage tube according to claim 3, characterized in that: The bottoms of the plurality of first elastic sheets (14) abut against the top of the circular plate (21), and the bottoms of the three second elastic sheets (25) abut against the top of the layered plate (34).

7. The flow rate control device for a ventricular drainage tube according to claim 5, characterized in that: The layered plate (34) divides the circular shell (31) into two upper and lower chambers, the longitudinal height of the lower chamber is greater than the longitudinal height of the upper chamber, and the outer edges of the three protrusions (36) are movably engaged with the three grooves (22) of the circular plate (21).

8. The flow rate control device for a ventricular drainage tube according to claim 5, characterized in that: The constant speed component (4) comprises a fixed shaft (41), the fixed shaft (41) is fixedly mounted on the bottom of the layered plate (34), a rotating ring (42) is movably engaged at the middle position of the fixed shaft (41), a first conical spring (43) is fixedly connected to the outer edge of the rotating ring (42), and a fan (44) is fixedly connected to the tail end of the first conical spring (43).

9. The flow rate control device for a ventricular drainage tube according to claim 1, characterized in that: The one-way valve (5) comprises an outer shell (51), the bottom of which is fixedly connected to a connecting pipe (52), the connecting pipe (52) being inserted into the bottom of the round shell (31), the top of which is provided with a plurality of semicircular grooves (53), a circular table (54) being movably mounted inside the outer shell (51), the inner ring of which is provided with a plurality of conical holes (55), a plurality of plugs being fixedly mounted on the top side of the inner wall of the outer shell (51), the bottom of which is fixedly connected to a second conical spring (56), the bottom of which is in contact with the bottom surface of the outer shell (51), and a water outlet pipe (57) being fixedly connected to the bottom of the outer shell (51).

10. The flow rate control device for a ventricular drainage tube according to claim 9, characterized in that: The plurality of conical holes (55) are all annularly opened at an inclined angle on the inclined surface of the circular table (54); the top aperture of the plurality of conical holes (55) is larger than the bottom aperture; when the circular table (54) is at the topmost side, the plug installed on the inner wall of the housing (51) will block the plurality of conical holes (55).

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