Backflow-preventing and flow-speed-controllable cerebrospinal fluid drainage device

Abstract

The utility model discloses an anti-regurgitation and flow velocity controllable type cerebrospinal fluid drainage device, which relates to the technical field of medical appliances, and comprises a fluid inlet tube, a drainage bottle, a fluid passing tube, a drainage bag and a fluid drainage tube, the outer wall of the bottom of the fluid inlet tube penetrates through one side of the top surface of the drainage bottle, and the outer wall of the bottom of the fluid inlet tube is fixedly connected with the top end in the drainage bottle; a liquid passing pipe is fixedly connected to the outer wall of the bottom end of the drainage bottle, a filtering exhaust valve is arranged on one side of the top of the drainage bottle, tee joints are fixedly connected to the center of the outer wall of the liquid passing pipe and the outer wall of one end of the liquid inlet pipe, and the outer wall of the bottom end of the liquid passing pipe is fixedly connected with the center of the top face of the drainage bag. According to the drainage device, medical staff can push the liquid level monitor to set the total amount of drainage liquid according to actual requirements and liquid level scale marks, when the liquid level exceeds the scale marks, the liquid level monitor can monitor the total amount of the drainage liquid, and the drainage device can monitor the total amount of the drainage liquid. The liquid level sensor can give an alarm to remind medical staff.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a cerebrospinal fluid drainage device with anti-reflux and controllable flow rate. Background Art

[0002] Cerebrospinal fluid drainage devices play a vital role in the medical field. They are mainly used to treat intracranial infections, subarachnoid hemorrhage and other diseases. By inserting the drainage tube into the lowest part of the patient's lumbar subarachnoid space, the device can continuously drain cerebrospinal fluid, thereby reducing the pressure of cerebrospinal fluid on the brain, preventing the occurrence of brain herniation, and helping to clear pathogens and inflammatory substances, promoting recovery from the disease. This process is of great significance for reducing intracranial pressure, reducing cerebral edema, preventing complications and improving the quality of life of patients. Therefore, cerebrospinal fluid drainage devices are an important medical device commonly used in neurosurgery and critical care medicine.

[0003] Currently, the cerebrospinal fluid drainage devices used in clinical practice cannot prevent cerebrospinal fluid reflux, nor can they control the outflow rate and amount of drainage fluid. The drainage rate can only be adjusted by raising the height of the drainage bottle, requiring medical staff to frequently observe the amount of drainage fluid. When the patient is suctioning, agitated, or undergoing other operations, cerebrospinal fluid will flow out too quickly and in excessive amounts. Excessive outflow of drainage fluid, if not discovered in time, can cause low intracranial pressure and, in severe cases, brain herniation, seriously affecting the patient's life safety. In view of this, we provide a cerebrospinal fluid drainage device with anti-reflux and controllable flow rate. Utility Model Content

[0004] The purpose of the utility model is to remedy the deficiencies of the prior art and to provide a cerebrospinal fluid drainage device with anti-reflux and controllable flow rate.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a reflux-proof, flow-rate-controllable cerebrospinal fluid drainage device, comprising a liquid inlet tube, a drainage bottle, a liquid passage tube, a drainage bag and a liquid discharge tube, wherein the outer wall of the bottom of the liquid inlet tube passes through one side of the top surface of the drainage bottle, and the outer wall of the bottom of the liquid inlet tube is fixedly connected to the top of the drainage bottle, the outer wall of the bottom end of the drainage bottle is fixedly connected to the liquid passage tube, and a filter exhaust valve is also provided on one side of the top of the drainage bottle, the center of the outer wall of the liquid passage tube and the outer wall of one end of the liquid inlet tube are fixedly connected to a tee, and the outer wall of the bottom end of the liquid passage tube is fixedly connected to the center of the top surface of the drainage bag, the bottom end of the drainage bag is fixedly connected to the outer wall of the top end of the discharge tube, and the outer wall of the bottom end of the discharge tube is fixedly connected to the discharge valve.

[0006] A scale regulating valve is rotatably connected inside the liquid inlet pipe, and a duckbill valve is fixedly connected to the outer wall of the bottom end of the liquid inlet pipe. A sliding track is fixedly connected to one side of the outer wall of the drainage bottle, and a liquid level monitor is slidably connected to the outer side of the drainage bottle through the sliding track.

[0007] As mentioned above, the scale regulating valve is located on one side of the top of the duckbill valve, and a plurality of scale lines are provided on the outer wall of the scale regulating valve.

[0008] As mentioned above, the scale regulating valve and the liquid inlet pipe are interconnected, and the scale regulating valve is composed of two rotating valve bodies.

[0009] As mentioned above, the overall shape of the duckbill valve is similar to a duckbill, and the main components of the duckbill valve include high-strength materials such as rubber and reinforced fiber.

[0010] As mentioned above, both sides of the outer wall of the liquid level monitor are connected with both sides of the inner wall of the sliding track, and both sides of the outer wall of the liquid level monitor are slidably connected with both sides of the inside of the sliding track. The sliding track and the outer wall of the drainage bottle are provided with liquid level scale lines, and a plurality of limit slots are provided in the center of the inner part of the sliding track, and the limit slots correspond to the liquid level scale lines.

[0011] As mentioned above, multiple limit rails are fixedly connected on both sides of the interior of the liquid level monitor, and multiple limit blocks are slidably connected on both sides of the interior of the liquid level monitor through the limit rails. The outer wall of one end of the limit rail is connected to the outer wall of one side of the limit block, and the inner side of the limit block is slidably connected to one side of the outer wall of the limit rail.

[0012] As mentioned above, one side of the outer wall of the limit card block and one side of the inner wall of the liquid level monitor are fixedly connected with a group of corresponding spring limiters, and a limit spring is fixedly connected between the corresponding surfaces of the spring limiters. The limit card block is slidably connected to the inner side of the liquid level monitor through the limit spring and the limit slide rail, and the outer wall side of the limit card block passes through the inner side of the liquid level monitor and extends into the inner center of the limit card slot.

[0013] Compared with the existing technology, this anti-reflux, flow rate controllable cerebrospinal fluid drainage device has the following advantages:

[0014] Beneficial effects:

[0015] 1. During use, the utility model can adjust the drainage liquid by rotating the scale regulating valve. By rotating the scale regulating valve to the corresponding scale, the flow rate of the drainage liquid can be closely regulated. At the same time, placing the duckbill valve at the bottom of the liquid inlet pipe can effectively prevent the liquid from flowing back from the drainage bottle into the pipeline system, ensuring the unidirectionality and safety of the drainage process.

[0016] 2. According to the utility model, when medical staff need to change the liquid level monitored by the liquid level detector, they can push the liquid level detector along the sliding track. As the medical staff pushes, the limit card block will retreat into the liquid level monitor due to the resistance of the inner wall of the limit card slot. When it moves to the liquid level scale line of the corresponding height, the limit card block will be pushed out of the liquid level monitor under the action of the limit spring and embedded in the limit card slot to achieve relative fixation of the liquid level monitor, so that medical staff can push the liquid level monitor according to actual needs and the liquid level scale line to set the total amount of drainage fluid. When the liquid level exceeds the scale line, the liquid level sensor will alarm to remind the medical staff.

[0017] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a partially cutaway three-dimensional structural diagram of the drainage bottle of the present invention;

[0020] Figure 3 This is a partially cutaway three-dimensional structural diagram of the regulating valve of the present invention;

[0021] Figure 4 This is a partial three-dimensional structural diagram of the sliding track and liquid level monitor of the utility model;

[0022] Figure 5 This is a partially cutaway three-dimensional structural diagram of the sliding track of the present invention;

[0023] Figure 6 This is a partially cutaway schematic diagram of the three-dimensional structure of the liquid level monitor of the present invention;

[0024] Figure 7 For this utility model Figure 6 Schematic diagram of the local three-dimensional structure of A.

[0025] In the figure: 1. Liquid inlet pipe; 101. Drainage bottle; 102. Liquid flow tube; 103. Drainage bag; 104. Discharge pipe; 105. Filter exhaust valve; 106. Tee; 107. Discharge valve; 2. Scale regulating valve; 3. Sliding track; 301. Liquid level monitor; 302. Liquid level scale line; 303. Limiting slot; 304. Limiting slide rail; 305. Limiting block; 306. Spring limiter; 307. Limiting spring. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figure 1-7 As shown, the utility model provides a technical solution: a reflux-proof, flow-rate-controllable cerebrospinal fluid drainage device, comprising a liquid inlet tube 1, a drainage bottle 101, a liquid passage tube 102, a drainage bag 103 and a discharge tube 104, the bottom outer wall of the liquid inlet tube 1 passes through one side of the top surface of the drainage bottle 101, and the bottom outer wall of the liquid inlet tube 1 is fixedly connected to the top end of the drainage bottle 101, the bottom outer wall of the drainage bottle 101 is fixedly connected to the liquid passage tube 102, and a filtering exhaust valve 105 is also provided on one side of the top of the drainage bottle 101, the center of the outer wall of the liquid passage tube 102 and the outer wall of one end of the liquid inlet tube 1 are fixedly connected to a tee 106, the bottom outer wall of the liquid passage tube 102 is fixedly connected to the center of the top surface of the drainage bag 103, the bottom end of the drainage bag 103 is fixedly connected to the outer wall of the top end of the discharge tube 104, and the bottom outer wall of the discharge tube 104 is fixedly connected to a discharge valve 107.

[0028] A scale regulating valve 2 is rotatably connected inside the liquid inlet pipe 1, and a duckbill valve 201 is fixedly connected to the outer wall of the bottom end of the liquid inlet pipe 1. A sliding track 3 is fixedly connected to one side of the outer wall of the drainage bottle 101, and a liquid level monitor 301 is slidably connected to the outer side of the drainage bottle 101 through the sliding track 3.

[0029] During use, the scale regulating valve 2 can be rotated to the corresponding scale to adjust the flow rate of the drainage liquid. At the same time, the duckbill valve 201 is placed at the bottom of the liquid inlet pipe 1 to effectively prevent the liquid from flowing back into the pipeline system from the drainage bottle 101, ensuring the unidirectionality and safety of the drainage process. When the medical staff needs to change the liquid level monitored by the liquid level monitor 301, the liquid level monitor 301 can be pushed along the sliding track 3. As the medical staff pushes, the limit block 305 will The limit card block 305 will be pushed out of the liquid level monitor 301 by the action of the limit spring 307 and embedded in the limit card slot 303, so as to achieve relative fixation of the liquid level monitor 301. The medical staff can push the liquid level monitor 301 according to actual needs and the liquid level scale line 302 to set the total amount of drainage fluid. When the liquid level exceeds the scale line, the liquid level sensor will alarm to remind the medical staff.

[0030] like Figure 1-3 As shown, the scale regulating valve is located on one side of the top of the duckbill valve, and a plurality of scale lines are provided on the outer wall of the scale regulating valve. The scale regulating valve 2 is interconnected with the liquid inlet pipe 1, and the scale regulating valve 2 is composed of two rotating valve bodies. The overall shape of the duckbill valve is similar to a duckbill, and the main components of the duckbill valve include high-strength materials such as rubber and reinforced fiber.

[0031] The scale regulating valve 2 is set on one side of the top of the drainage bottle 101, and the scale regulating valve 2 is rotated to closely control the flow rate of the drainage fluid through the scale regulating valve 2;

[0032] The overall shape of the duckbill valve 201 is similar to a duckbill, and the main components of the duckbill valve 201 include high-strength materials such as rubber and reinforced fiber, which can effectively prevent the liquid from flowing back from the drainage bottle 101 into the pipeline system, ensuring the unidirectionality and safety of the drainage process.

[0033] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, both sides of the outer wall of the liquid level monitor 301 are connected to both sides of the inner wall of the sliding track 3, and both sides of the outer wall of the liquid level monitor 301 are slidably connected to both sides of the inside of the sliding track 3. Through the connection between the liquid level monitor 301 and both sides of the inner wall of the sliding track 3, the sliding track 3 limits the moving track of the liquid level monitor 301, so that the liquid level monitor 301 can only move vertically along the inner wall of the sliding track 3 when moving;

[0034] Liquid level scale lines 302 are provided on the outer walls of the sliding track 3 and the drainage bottle 101, and a plurality of limit slots 303 are provided in the center of the inner portion of the sliding track 3. The limit slots 303 correspond to the liquid level scale lines 302. By precisely aligning the limit slots 303 with the liquid level scale lines 302, it is ensured that the liquid level monitor 301 can accurately achieve height matching with the corresponding liquid level scale lines 302 through the limit slots 303.

[0035] A plurality of limit rails 304 are fixedly connected to both sides of the liquid level monitor 301, and a plurality of limit blocks 305 are slidably connected to both sides of the liquid level monitor 301 through the limit rails 304. The outer wall of one end of the limit rail 304 is connected through the outer wall of one side of the limit block 305, and the inner side of the limit block 305 is connected in a slidable manner to the outer wall of the limit rail 304. By passing the limit rail 304 through the inner side of the limit block 305 once, the movement trajectory of the limit block 305 is limited, so that the limit block 305 can only move along the outer wall of the limit rail 304 when moving.

[0036] A set of corresponding spring limiters 306 are fixedly connected to one side of the outer wall of the limit card block 305 and one side of the inner wall of the liquid level monitor 301, and a limit spring 307 is fixedly connected between the corresponding surfaces of the spring limiters 306. The limit card block 305 is slidably connected to the inner side of the liquid level monitor 301 through the limit spring 307 and the limit slide rail 304, and the outer wall of the limit card block 305 passes through the inner side of the liquid level monitor 301 and penetrates into the inner center of the limit card slot 303. By fixing multiple spring limiters 306 on the outer wall of the limit card block 305 and the inner wall of the liquid level monitor 301 at the same time, and installing limit springs 307 between the spring limiters 306, when the medical staff pushes the liquid level monitor 301, the liquid level monitor 301 01 drives the limit card block 305 to move. Since the outer wall of the limit card block 305 is provided with an arc surface, and the arc surface directly contacts the outer wall of the limit card slot 303, as the medical staff pushes, the limit card block 305 will retreat to the inside of the liquid level monitor 301 due to the resistance of the inner wall of the limit card slot 303. When it moves to the liquid level scale line 302 of the corresponding height, the limit card block 305 will be pushed out of the liquid level monitor 301 under the action of the limit spring 307 and embedded in the limit card slot 303, thereby achieving relative fixation of the liquid level monitor 301, so that the medical staff can set the total amount of drainage fluid according to actual needs and the liquid level scale line 302. When the liquid level exceeds the scale line, the liquid level sensor will alarm to remind the medical staff.

[0037] Working principle: The scale regulating valve 2 is set on one side of the top of the drainage bottle 101, and the scale regulating valve 2 is rotated. The flow rate of the drainage fluid can be closely controlled by the scale regulating valve 2. The overall shape of the duckbill valve 201 is similar to a duckbill, and the duckbill valve 201 is mainly composed of high-strength materials such as rubber and reinforced fiber, which can effectively prevent the liquid from flowing back from the drainage bottle 101 into the pipeline system, ensuring the unidirectionality and safety of the drainage process. When medical staff need to change the liquid level monitored by the liquid level monitor 301, they can push the liquid level along the sliding track 3 As the monitor 301 is pushed by the medical staff, the limit block 305 will retreat into the liquid level monitor 301 due to the resistance of the inner wall of the limit slot 303. When it moves to the liquid level scale line 302 of the corresponding height, the limit block 305 will be pushed out of the liquid level monitor 301 under the action of the limit spring 307 and embedded in the limit slot 303, thereby achieving relative fixation of the liquid level monitor 301. This allows medical staff to push the liquid level monitor 301 according to actual needs and the liquid level scale line 302 to set the total amount of drainage fluid.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reflux-proof, flow-rate-controllable cerebrospinal fluid drainage device, comprising a liquid inlet tube (1), a drainage bottle (101), a liquid passage tube (102), a drainage bag (103) and a liquid discharge tube (104), characterized in that: The outer wall of the bottom of the liquid inlet pipe (1) passes through one side of the top surface of the drainage bottle (101), and the outer wall of the bottom of the liquid inlet pipe (1) is fixedly connected to the top of the drainage bottle (101). The outer wall of the bottom end of the drainage bottle (101) is fixedly connected to the liquid passing pipe (102), and a filter exhaust valve (105) is also provided on one side of the top of the drainage bottle (101). The center of the outer wall of the liquid passing pipe (102) and the outer wall of one end of the liquid inlet pipe (1) are fixedly connected to a three-way joint (106), and the outer wall of the bottom end of the liquid passing pipe (102) is fixedly connected to the center of the top surface of the drainage bag (103). The bottom end of the drainage bag (103) is fixedly connected to the outer wall of the top end of the discharge pipe (104), and the outer wall of the bottom end of the discharge pipe (104) is fixedly connected to a discharge valve (107). The liquid inlet pipe (1) is rotatably connected to a graduated regulating valve (2), and a duckbill valve (201) is fixedly connected to the outer wall of the bottom end of the liquid inlet pipe (1). A sliding track (3) is fixedly connected to one side of the outer wall of the drainage bottle (101), and a liquid level monitor (301) is slidably connected to one side of the outer side of the drainage bottle (101) via the sliding track (3).

2. The anti-reflux, flow-rate-controllable cerebrospinal fluid drainage device according to claim 1, characterized in that: The scale regulating valve (2) is located on one side of the top of the duckbill valve (201), and scale lines are provided on the outer wall of the scale regulating valve (2).

3. The anti-reflux, flow-rate-controllable cerebrospinal fluid drainage device according to claim 2, characterized in that: The scale regulating valve (2) is interconnected with the liquid inlet pipe (1), and the scale regulating valve (2) is composed of two rotating valve bodies.

4. The anti-reflux, flow-rate-controllable cerebrospinal fluid drainage device according to claim 1, characterized in that: The overall shape of the duckbill valve (201) is similar to a duckbill, and the main constituent materials of the duckbill valve (201) include high-strength materials such as rubber and reinforced fiber.

5. The anti-reflux, flow-rate-controllable cerebrospinal fluid drainage device according to claim 1, characterized in that: Both sides of the outer wall of the liquid level monitor (301) are connected to both sides of the inner wall of the sliding track (3), and both sides of the outer wall of the liquid level monitor (301) are slidably connected to both sides of the interior of the sliding track (3). The outer walls of the sliding track (3) and the drainage bottle (101) are both provided with liquid level scale lines (302), and the inner center of the sliding track (3) is also provided with a plurality of limit slots (303), and the limit slots (303) correspond to the liquid level scale lines (302).

6. The anti-reflux, flow-rate-controllable cerebrospinal fluid drainage device according to claim 5, characterized in that: A plurality of limiting slide rails (304) are fixedly connected to both sides of the interior of the liquid level monitor (301), and a plurality of limiting blocks (305) are simultaneously slidably connected to both sides of the interior of the liquid level monitor (301) through the limiting slide rails (304), the outer wall of one end of the limiting slide rail (304) is connected through the outer wall of one side of the limiting block (305), and the inner side of the limiting block (305) is slidably connected to one side of the outer wall of the limiting slide rail (304).

7. The anti-reflux, flow-rate-controllable cerebrospinal fluid drainage device according to claim 6, characterized in that: A set of corresponding spring limiters (306) are fixedly connected to one side of the outer wall of the limit block (305) and one side of the inner wall of the liquid level monitor (301), and a limit spring (307) is fixedly connected between corresponding surfaces of the spring limiters (306). The limit block (305) is slidably connected to the inner side of the liquid level monitor (301) through the limit spring (307) and the limit slide rail (304), and the outer wall of the limit block (305) penetrates the inner side of the liquid level monitor (301) and extends into the inner center of the limit slot (303).

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