Anti-reflux antibacterial cerebrospinal fluid collecting pipeline

Abstract

The invention discloses an anti-reflux antibacterial cerebrospinal fluid collecting pipeline, which relates to the technical field of drainage tubes, and adopts the technical scheme that the anti-reflux antibacterial cerebrospinal fluid collecting pipeline comprises a drainage tube, the tail end of the drainage tube is fixedly connected with a fixing mechanism, the tail end of the drainage tube can be inserted into a tube insertion opening formed in the upper part of a cerebrospinal fluid collecting bottle, and cerebrospinal fluid is conveyed into the cerebrospinal fluid collecting bottle through the tube insertion opening; according to the cerebrospinal fluid collecting bottle, the tail end of the drainage tube is sleeved with the intubation tube opening in the cerebrospinal fluid collecting bottle, and in the drainage process, the situation that the drainage tube makes contact with cerebrospinal fluid in the cerebrospinal fluid collecting bottle to infect a patient can be avoided; the drainage tube and the tube inserting opening can be rapidly fixed through the fixing mechanism arranged at the tail end of the drainage tube, the stability of the drainage tube is improved, liquid leakage is prevented, and meanwhile the assembly efficiency of the drainage tube is improved; and the anti-reflux mechanism arranged in the anti-reflux shell can quickly close the anti-reflux shell when the cerebrospinal fluid in the drainage tube flows backwards, so that the reflux is prevented, and the safety of a patient is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage tubes, and particularly to an anti-reflux antibacterial cerebrospinal fluid collection tube. Background Art

[0002] An anti-reflux antibacterial cerebrospinal fluid collection tube is a medical device specifically designed for cerebrospinal fluid collection, aiming to improve the safety and accuracy of the collection process. The core function of this tube is to prevent the backflow of cerebrospinal fluid during collection, ensuring the integrity and effectiveness of the sample. At the same time, the inner wall of the tube is made of a special antibacterial material, which can effectively inhibit the growth of bacteria and reduce the risk of cross-infection. In clinical applications, anti-reflux antibacterial cerebrospinal fluid collection tubes are widely used in the diagnosis and treatment monitoring of neurological diseases, helping doctors accurately obtain samples and providing safer and more efficient medical services for patients. With the continuous progress of technology, the innovative design of this tube will promote the development of cerebrospinal fluid collection technology to a higher level.

[0003] After retrieval, the patent with Chinese patent number CN219743664U discloses a novel drainage tube, including a connecting tube, one end of which is installed with a sac. An outlet for cerebrospinal fluid to pass through is opened on the sac, and a rubber plug for blocking the outlet is installed on the sac. A tube clamp is installed on the connecting tube; a negative pressure member installed on the sac, and the negative pressure member is used to extract the air in the sac. This device is connected to the patient through the connecting tube, and the cerebrospinal fluid is collected by the sac. In use, a negative pressure member is installed on the sac. During use, the air in the sac is evenly extracted by the negative pressure member, so that the negative pressure in the sac increases evenly, and the capacity of the cerebrospinal fluid in the sac is detected by an alarm member. When the cerebrospinal fluid reaches the set capacity, the medical staff is reminded by the sound emitted by the alarm member. Compared with the prior art, the patent with Chinese patent number CN219743664U solves the problems that the commonly used clinical ventricular drainage tubes do not have an alarm function, cannot measure by themselves, are not convenient for nursing staff to observe the drainage volume of the patient's ventricular drainage tube in time, and currently, medical staff adjust the pressure inside the ventricular drainage tube by manually pressing the balloon for drainage, resulting in inaccurate pressure control.

[0004] However, in the actual use process of the above device, the drainage tube lacks an anti-reflux structure during drainage, and incorrect drainage operations are likely to cause the backflow of cerebrospinal fluid, thus leading to intracranial infection. Moreover, it is also easy to cause infection after the outer opening of the drainage tube comes into contact with the liquid in the cerebrospinal fluid collection bottle. Therefore, an anti-reflux antibacterial cerebrospinal fluid collection tube is proposed. Summary of the Invention

[0005] The object of the present invention is to solve the deficiencies in the prior art that during drainage, the drainage pipeline lacks an anti-backflow structure, and incorrect drainage operations can easily cause cerebrospinal fluid to flow back, leading to intracranial infections. Moreover, contact between the outer opening of the drainage tube and the liquid in the cerebrospinal fluid collection bottle can also easily cause infections. Therefore, an anti-backflow antibacterial cerebrospinal fluid collection pipeline is proposed.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] An anti-backflow antibacterial cerebrospinal fluid collection pipeline, including a drainage tube, the tail end of the drainage tube is fixedly connected with a fixing mechanism, the tail end of the drainage tube can be inserted into an insertion opening provided in the upper part of the cerebrospinal fluid collection bottle, and cerebrospinal fluid is transported into the cerebrospinal fluid collection bottle through the insertion opening. The diameter of the drainage tube is larger than the insertion opening, and when inserted, the drainage tube can wrap the insertion opening. The fixing mechanism can clamp and fix the periphery of the drainage tube after the drainage tube is inserted into the insertion opening;

[0008] An anti-backflow housing is fixedly connected to the position of the drainage tube near the front end. A flow control mechanism is arranged inside the anti-backflow housing. The flow control mechanism can adjust the area of the liquid flowing through the anti-backflow housing. An anti-backflow mechanism is arranged on the side of the anti-backflow housing away from the valve housing. The anti-backflow mechanism will not affect the drainage during cerebrospinal fluid drainage. When the cerebrospinal fluid in the drainage tube flows back, it automatically closes the anti-backflow housing to block the reverse flow of the liquid.

[0009] The above technical solution further includes:

[0010] The fixing mechanism includes a fixing housing fixedly connected to the end of the drainage tube. A threaded rod is fixedly connected to one side of the fixing housing. The threaded rod is threadedly connected with a locking nut. Rotating the locking nut can drive the fixing housing to tighten.

[0011] Three springs are fixedly connected to the inner wall of the fixing housing. A rubber fixing ring is fixedly connected to the side of the spring away from the fixing housing. The rubber fixing ring is elastic and has a rough inner wall.

[0012] The flow control mechanism includes a valve housing fixedly connected inside the anti-backflow housing. Two rotating housings are fixedly connected to the side wall of the valve housing. A first motor is arranged inside the rotating housing. A control component is arranged at the output end of the first motor.

[0013] The control component includes a first gear arranged at the output end of the first motor. The first gear is meshed with a second gear. The second gear is rotatably connected between the rotating housing. A valve is fixedly connected to the side of the second gear away from the rotating housing. The valve is rotatably connected between the valve housing.

[0014] The anti-backflow mechanism includes a piston slidably connected to the end of the anti-backflow housing. Four fixing rods are fixedly connected to the side of the piston close to the anti-backflow housing. A limiting ring is fixedly connected to the side of the fixing rod away from the piston. The diameter of the limiting ring is larger than that of the drainage tube, and a through hole is provided at the center of the limiting ring.

[0015] A rotating ring is rotatably connected to the front end of the anti-backflow housing, and a crushing piece is fixedly connected inside the rotating ring.

[0016] An inlet pipe is provided at the side wall of the anti-backflow housing. A limiting mechanism is fixedly connected to the side of the inlet pipe close to the anti-backflow housing. The limiting mechanism includes a control housing fixedly connected to the inlet pipe. A second motor is arranged inside the control housing, and a limiting component is arranged at the output end of the second motor.

[0017] The limiting component includes a third gear arranged at the output end of the second motor. Transmission racks are symmetrically meshed and connected to both sides of the third gear. A connecting rod is fixedly connected to the side of the transmission rack away from the third gear. The connecting rod is fixedly connected to a movable baffle, and the movable baffle is slidably connected to the control housing.

[0018] The present invention has the following beneficial effects:

[0019] 1. In the present invention, the drainage tube is subjected to antibacterial treatment before use, which can effectively ensure that the patient will not be infected during the drainage process. The end of the drainage tube is sleeved on the insertion port of the cerebrospinal fluid collection bottle. During the drainage process, it can prevent the cerebrospinal fluid in the drainage tube from contacting the cerebrospinal fluid in the cerebrospinal fluid collection bottle and infecting the patient. Moreover, the fixing mechanism arranged at the end of the drainage tube can quickly fix the drainage tube to the insertion port, improving the stability of the drainage tube to prevent leakage while also improving the assembly efficiency of the drainage tube. In addition, the anti-backflow mechanism arranged inside the anti-backflow housing can quickly close the anti-backflow housing when the cerebrospinal fluid in the drainage tube flows back, thereby preventing backflow and protecting the safety of the patient. During the drainage process, the flow control mechanism can also control the liquid flow rate through the anti-backflow housing, so as to ensure the stability of the patient's intracranial pressure.

[0020] 2. In the present invention, two rows of crushing pieces are arranged inside the anti-backflow housing. During the drainage process, the liquid will drive the crushing pieces to rotate, thereby breaking some coagulated blood clots in the drained liquid and reducing the probability of blockage in the drainage tube. When the drainage tube has been blocked, the inlet pipe can be opened by opening the limiting mechanism. At this time, a thrombolytic agent can be injected into the anti-backflow housing through a syringe to dissolve the coagulated blood clots and clear the blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of an anti-backflow antibacterial cerebrospinal fluid collection pipeline proposed by the present invention;

[0022] Figure 2Schematic diagram of the three-dimensional structure in the present invention;

[0023] Figure 3 First schematic diagram in the present invention;

[0024] Figure 4 Second schematic diagram in the present invention;

[0025] Figure 5 Third schematic diagram in the present invention;

[0026] Figure 6 Fourth schematic diagram in the present invention;

[0027] Figure 7 Fifth schematic diagram in the present invention;

[0028] Figure 8 Sixth schematic diagram in the present invention;

[0029] Figure 9 Seventh schematic diagram in the present invention.

[0030] In the figure: 1. Drainage tube; 2. Anti-backflow housing; 3. Liquid inlet tube; 4. Cerebrospinal fluid collection bottle; 5. Control housing; 6. Insertion port; 7. Fixed housing; 8. Threaded rod; 9. Locking nut; 10. Spring; 11. Rubber fixing ring; 12. Rotating ring; 13. Fragmentation piece; 14. Valve housing; 15. Valve; 16. Rotating housing; 17. First motor; 18. First gear; 19. Second gear; 20. Second motor; 21. Third gear; 22. Transmission rack; 23. Connecting rod; 24. Movable baffle; 25. Piston; 26. Limit ring; 27. Fixed rod. Detailed implementation manners

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

[0032] Embodiment 1

[0033] As Figures 1-9As shown in the figure, an anti-reflux antibacterial cerebrospinal fluid collection pipeline proposed by the present invention includes a drainage tube 1. A fixing mechanism is fixedly connected to the tail end of the drainage tube 1. The tail end of the drainage tube 1 can be inserted into an insertion port 6 provided in the upper part of a cerebrospinal fluid collection bottle 4. Cerebrospinal fluid is transported into the cerebrospinal fluid collection bottle 4 through the insertion port 6. The diameter of the drainage tube 1 is larger than that of the insertion port 6. When inserted, the drainage tube 1 can wrap the insertion port 6. The fixing mechanism can clamp and fix the periphery of the drainage tube 1 after the drainage tube 1 is inserted into the insertion port 6;

[0034] A reflux prevention housing 2 is fixedly connected to the position of the drainage tube 1 near the front end. A flow control mechanism is arranged inside the reflux prevention housing 2. The flow control mechanism can adjust the area of the liquid flowing through the reflux prevention housing 2. An anti-reflux mechanism is arranged on the side of the reflux prevention housing 2 away from the valve housing 14. The anti-reflux mechanism will not affect the drainage during cerebrospinal fluid drainage. When the cerebrospinal fluid in the drainage tube 1 flows back, it automatically closes the reflux prevention housing 2 to block the backflow of the liquid;

[0035] The fixing mechanism includes a fixing housing 7 fixedly connected to the end of the drainage tube 1. A threaded rod 8 is fixedly connected to one side of the fixing housing 7. The threaded rod 8 is threadedly connected with a locking nut 9. Rotating the locking nut 9 can drive the fixing housing 7 to tighten. Three springs 10 are fixedly connected to the inner wall of the fixing housing 7. A rubber fixing ring 11 is fixedly connected to the side of the spring 10 away from the fixing housing 7. The rubber fixing ring 11 is elastic and has a rough inner wall;

[0036] The flow control mechanism includes a valve housing 14 fixedly connected inside the reflux prevention housing 2. Two rotating housings 16 are fixedly connected to the side wall of the valve housing 14. A first motor 17 is arranged inside the rotating housing 16. A control component is arranged at the output end of the first motor 17. The control component includes a first gear 18 arranged at the output end of the first motor 17. The first gear 18 is meshed and connected with a second gear 19. The second gear 19 is rotatably connected with the rotating housing 16. A valve 15 is fixedly connected to the side of the second gear 19 away from the rotating housing 16. The valve 15 is rotatably connected with the valve housing 14;

[0037] The anti-reflux mechanism includes a piston 25 slidably connected to the end of the reflux prevention housing 2. Four fixing rods 27 are fixedly connected to the side of the piston 25 close to the reflux prevention housing 2. A limiting ring 26 is fixedly connected to the side of the fixing rod 27 away from the piston 25. The diameter of the limiting ring 26 is larger than that of the drainage tube 1. A through hole is opened in the center of the limiting ring 26.

[0038] In this embodiment, the drainage tube 1 will be subjected to antibacterial treatment before drainage to prevent infection of patients. Before use, the end of the drainage tube 1 is sleeved on the insertion port 6 provided at the upper end of the cerebrospinal fluid collection bottle 4. Such a connection can ensure that the drainage tube 1 will not come into contact with the cerebrospinal fluid in the cerebrospinal fluid collection bottle 4 during drainage, thus preventing infection, effectively improving the safety of the pipeline. Moreover, by rotating the locking nut 9 on the threaded rod 8, the locking nut 9 can be controlled to move downward, thereby driving the fixed housing 7 to contract inward, and further compressing the spring 10 to deform so that the rubber fixing ring 11 tightly adheres to the outer wall of the drainage tube 1, thereby fixing the drainage tube 1 and ensuring the stability of the drainage tube 1 during drainage. Moreover, it can also ensure that there is no liquid leakage phenomenon during the drainage process;

[0039] During the drainage process of the drainage tube 1, when the cerebrospinal fluid flows smoothly, the limiting ring 26 closely adheres to one side of the anti-reflux housing 2. The cerebrospinal fluid can flow out from the through port opened by the limiting ring 26, without affecting the cerebrospinal fluid drainage. When the cerebrospinal fluid flows backward, the control housing 5 will move backward under the push of the cerebrospinal fluid, so as to closely adhere to the anti-reflux housing 2 and block the through port, thereby preventing the cerebrospinal fluid from continuing to flow backward and protecting the safety of the patient. During the drainage process, the first motor 17 inside the housing 16 can also be rotated to drive the first gear 18 to rotate. The rotation of the first gear 18 can drive the meshing-connected second gear 19 to rotate. The rotation of the second gear 19 can drive the valve flap 15 to rotate, so as to control the liquid area passing through the valve flap housing 14 and further control the liquid flow rate passing through the anti-reflux housing 2, thereby ensuring the stability of the patient's intracranial pressure.

[0040] Embodiment 2

[0041] As Figures 1-9 shown, a rotating ring 12 is rotatably connected to the front end of the anti-reflux housing 2, and a fragmentation piece 13 is fixedly connected inside the rotating ring 12;

[0042] A liquid inlet pipe 3 is provided at the side wall position of the anti-reflux housing 2. A limiting mechanism is fixedly connected to the side of the liquid inlet pipe 3 close to the anti-reflux housing 2. The limiting mechanism includes a control housing 5 fixedly connected to the liquid inlet pipe 3. A second motor 20 is arranged inside the control housing 5, and a limiting component is arranged at the output end of the second motor 20. The limiting component includes a third gear 21 arranged at the output end of the second motor 20. Transmission racks 22 are symmetrically meshed on both sides of the third gear 21. A connecting rod 23 is fixedly connected to the side of the transmission rack 22 away from the third gear 21. A movable baffle 24 is fixedly connected between the connecting rod 23 and the movable baffle 24 is slidably connected to the control housing 5.

[0043] In this embodiment, two rows of breaking pieces 13 are arranged inside the anti-backflow housing 2. During the drainage process, the liquid can drive the breaking pieces 13 to rotate, so as to break some coagulated blood clots in the drainage liquid, thereby preventing the drainage liquid from blocking in the drainage tube 1 and affecting the drainage. When the drainage tube 1 has been blocked, the second motor 20 inside the control housing 5 can be turned on to drive the third gear 21 to rotate. Through the third gear 21, the driving racks 22 symmetrically engaged on both sides can be driven to move. The movement of the driving racks 22 can drive the movable baffle 24 fixedly connected through the connecting rod 23 to move to both sides, thereby opening the liquid inlet tube 3. At this time, a thrombolytic agent can be injected into the anti-backflow housing 2 through a syringe to dissolve the coagulated blood clots and clear the blockage.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-backflow antibacterial cerebrospinal fluid collection conduit, comprising a drainage tube (1), characterized in that: The tail end of the drainage tube (1) is fixedly connected to a fixing mechanism, and the tail end of the drainage tube (1) can be inserted into a cannula port (6) provided on the upper part of the cerebrospinal fluid collection bottle (4), and cerebrospinal fluid is transported to the inside of the cerebrospinal fluid collection bottle (4) through the cannula port (6). The diameter of the drainage tube (1) is larger than the cannula port (6), and when the drainage tube (1) is inserted, the cannula port (6) can be wrapped around the cannula port (6). The fixing mechanism can clamp and fix the outer periphery of the drainage tube (1) after the drainage tube (1) is inserted into the cannula port (6); The drainage tube (1) is fixedly connected to an anti-backflow housing (2) near the front end. A flow control mechanism is arranged inside the anti-backflow housing (2). The flow control mechanism can adjust the area of ​​liquid flowing through the anti-backflow housing (2). An anti-backflow mechanism is arranged inside the anti-backflow housing (2) on a side away from the valve housing (14). The anti-backflow mechanism will not affect the drainage of cerebrospinal fluid during drainage. When cerebrospinal fluid in the drainage tube (1) flows backward, the anti-backflow housing (2) is automatically closed to prevent the backflow of liquid.

2. The anti-backflow antibacterial cerebrospinal fluid collection conduit according to claim 1, characterized in that: The fixing mechanism comprises a fixing shell (7) fixedly connected to the end of the drainage tube (1); a threaded rod (8) is fixedly connected to one side of the fixing shell (7); a locking nut (9) is threadedly connected to the threaded rod (8); and the fixing shell (7) can be tightened by rotating the locking nut (9).

3. The anti-backflow antibacterial cerebrospinal fluid collection conduit according to claim 2, characterized in that: Three springs (10) are fixedly connected to the inner wall of the fixed housing (7); a rubber fixing ring (11) is fixedly connected to the side of the spring (10) away from the fixed housing (7); the rubber fixing ring (11) is elastic and has a rough inner wall.

4. The anti-backflow antibacterial cerebrospinal fluid collection conduit according to claim 1, characterized in that: The flow control mechanism comprises a valve housing (14) fixedly connected to the inside of the anti-backflow housing (2); two rotating housings (16) are fixedly connected to the side wall of the valve housing (14); a first motor (17) is arranged inside the rotating housing (16); and a control component is arranged at the output end of the first motor (17).

5. The anti-backflow antibacterial cerebrospinal fluid collection conduit according to claim 4, characterized in that: The control assembly comprises a first gear (18) arranged at the output end of a first motor (17); the first gear (18) is meshingly connected with a second gear (19); the second gear (19) is rotationally connected to a rotating housing (16); a valve (15) is fixedly connected to a side of the second gear (19) away from the rotating housing (16); and the valve (15) is rotationally connected to a valve housing (14).

6. The anti-backflow antibacterial cerebrospinal fluid collection conduit according to claim 1, characterized in that: The anti-backflow mechanism comprises a piston (25) slidably connected to the end of the anti-backflow housing (2); four fixing rods (27) are fixedly connected to the side of the piston (25) close to the anti-backflow housing (2); a limiting ring (26) is fixedly connected to the side of the fixing rod (27) away from the piston (25); the limiting ring (26) has a diameter larger than the drainage tube (1); and a through opening is provided at the center of the limiting ring (26).

7. The anti-backflow antibacterial cerebrospinal fluid collection conduit according to claim 1, characterized in that: The front end of the anti-backflow housing (2) is rotatably connected to a rotating ring (12), and a crushing piece (13) is fixedly connected inside the rotating ring (12).

8. The anti-backflow antibacterial cerebrospinal fluid collection conduit according to claim 1, characterized in that: A liquid inlet pipe (3) is arranged on the side wall of the anti-backflow housing (2); a limiting mechanism is fixedly connected to the liquid inlet pipe (3) near a side of the anti-backflow housing (2); the limiting mechanism comprises a control housing (5) fixedly connected to the liquid inlet pipe (3); a second motor (20) is arranged inside the control housing (5); and a limiting component is arranged at the output end of the second motor (20).

9. The anti-backflow antibacterial cerebrospinal fluid collection conduit according to claim 8, characterized in that: The position limiting assembly comprises a third gear (21) arranged at the output end of the second motor (20), the third gear (21) being symmetrically meshed with transmission racks (22) on both sides, the transmission rack (22) being fixedly connected to a connecting rod (23) on a side away from the third gear (21), the connecting rod (23) being fixedly connected to a movable baffle (24), and the movable baffle (24) being slidably connected to a control housing (5).

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