Drainage device based on Tesla structure

Abstract

The utility model belongs to the field of drainage tube devices, and particularly relates to a drainage device based on a Tesla structure. Comprising a Tesla flow guide structure, the Tesla flow guide structure is connected with a plurality of connecting ports for drainage through a three-way rotary valve, and the three-way rotary valve is rotated to switch different connecting ports so as to adapt to different types of catheters. The Tesla flow guide structure comprises a flow guide channel formed by connecting a plurality of Tesla valve hole units, and the Tesla flow guide structure is connected to the three-way rotary valve. The Tesla valve hole unit comprises a direct-flow main channel and a protruding annular channel. The device can adapt to different types of catheters and drainage devices, and has multifunctional drainage adaptability. Meanwhile, by means of the specific structural design of the Tesla valve, drainage in various drainage and discharge directions is smooth, drainage cannot pass through in the backflow direction, then drainage retrograde movement is reduced, and the living quality of a patient is improved. And the external drainage device of the device is provided with a pressure monitoring function for monitoring the drainage liquid amount, so that the observation frequency is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drainage tube device field, concretely speaking, it is a drainage device based on Tesla structure. BACKGROUND

[0002] One or more drainage tubes need to be indwelled after surgical operation, and the blood, fluid, pus and daily normal secretion of bile, intestinal fluid in the body are drained out. The drainage tube end is connected with a drainage device for containing the drained liquid, which is a drainage bag or negative pressure ball. Since the drainage device mostly adopts a conical joint, and the thoracic and abdominal cavity puncture drainage tube usually adopts a standard spiral joint, when used with the thoracic and abdominal cavity drainage tube, a plurality of disposable latex tubes are generally required to be connected with the conical joint and the spiral joint for switching, which is not only complicated to operate, but also easy to slip. At present, most drainage bags are provided with a butterfly structure at the upper drainage tube to prevent backflow, but the body fluid flowing in the positive direction needs a certain pressure to open the butterfly structure, and the above pressure acts on the cavity containing the body fluid of the patient, thereby causing discomfort of the patient and even causing injury. Therefore, in order to be suitable for various drainage scenes and prevent the backflow of the fluid in the drainage tube to the patient's body when the patient moves, it is urgent to design a drainage device which is simple to operate and can effectively prevent backflow. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a drainage device based on Tesla structure. The device can switch different types of guide interface and drainage device through a three-way rotary valve, and contains a guide channel formed by a Tesla valve hole unit connection, which can effectively prevent the occurrence of liquid backflow and improve the life quality of the patient; the external drainage device is designed with a pressure monitoring function for monitoring the amount of drainage liquid, thereby reducing the observation frequency.

[0004] The utility model in particular adopts the following technical means:

[0005] A drainage device based on Tesla structure, comprising a Tesla guide structure, the Tesla guide structure is connected with a plurality of connection ports for drainage through a three-way rotary valve, and the three-way rotary valve is switched to adapt to different types of catheters.

[0006] Further, the Tesla guide structure comprises a guide channel formed by a plurality of Tesla valve hole units, which is connected to the three-way rotary valve.

[0007] Further, the three-way rotary valve is externally connected with a drainage ball, the drainage ball is externally provided with a box body which is matched in size, and the inner wall of the contact part between the box body and the drainage ball is provided with a pressure sensor for monitoring the pressure value of the ball when the drainage ball is expanded.

[0008] Further, the box body comprises pressure sensors arranged on the upper and lower slots and the left and right slots.

[0009] Further, the Tesla valve hole unit comprises a straight main channel and a protruding annular channel; when backflowing, the liquid in the annular channel collides with the liquid in the main channel to lose flow energy, thereby achieving the anti-backflow effect.

[0010] Preferably, the Tesla flow guide structure comprises a flow guide channel formed by connecting four Tesla valve hole units.

[0011] Further, the Tesla flow guide structure is connected with three-way rotary valves on both sides; the upper three-way rotary valve comprises a first tapered connecting port and a second connecting port, the first tapered connecting port is suitable for connecting a drainage tube port, and the second connecting port is suitable for connecting a T tube.

[0012] Further, the lower three-way rotary valve comprises a second tapered connecting port and a threaded interface, and the lower three-way rotary valve interface is suitable for connecting various drainage devices.

[0013] Further, the rotary three-way rotary valve is connected with the flow guide channel through the first tapered connecting port or the second connecting port to achieve the drainage effect.

[0014] The utility model has the following beneficial effects:

[0015] The structure can adapt to different types of catheters and drainage devices by connecting multiple drainage connecting ports through the three-way rotary valve. The above structure design enables the drainage device to flexibly cope with various actual application scenarios, whether connected to a drainage tube port or a T tube or other different structures, and can be easily switched by rotating the three-way rotary valve, having multifunctional drainage adaptability.

[0016] The Tesla valve hole unit for drainage in the structure comprises a main channel and a protruding annular channel. When the liquid backflows, the liquid in the annular channel collides with the liquid in the main channel, resulting in energy loss, and the resistance of the backflow of the liquid is large, thereby achieving effective anti-backflow effect. This anti-backflow design ensures that the drainage device will not have the problem of liquid backflow, maintaining the stability and safety of the system.

[0017] The Tesla flow guide structure in the structure is composed of multiple Tesla valve hole units, forming a complex flow guide channel system, and the liquid flows smoothly when flowing forward, with very small resistance. This system design not only effectively guides the fluid, but also optimizes the flow characteristics of the fluid through the Tesla effect, improving the drainage efficiency and performance.

[0018] By setting a pressure sensor inside the box body, the pressure of the drainage ball can be monitored in real time, which helps to obtain the state of the drainage ball in time and find out whether there is abnormal pressure change, so as to make corresponding adjustment or maintenance. Medical staff can also obtain the real-time state of the system through the pressure sensor, and adjust the operation according to the data to avoid potential safety hazards. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of a specific embodiment of the utility model;

[0020] Figure 2 is a structural schematic view of a specific drainage channel embodiment in the utility model;

[0021] Figure 3 is a structural schematic view of the drainage ball box body in the utility model.

[0022] In the drawing, the numbers are: 1, connecting port; 11, second conical connecting port; 12, first conical connecting port; 13, second connecting port; 14, threaded interface; 2, Tesla flow guide structure; 211, Tesla valve hole unit; 3, three-way rotary valve; 4, box body; 41, slot hole; 42, pressure sensor; 5, drainage ball. DETAILED DESCRIPTION

[0023] The embodiments of the utility model will be described below through specific examples. Those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. The utility model can also be implemented or applied through different specific embodiments, and the details in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the drawings provided in the following examples only illustrate the basic concept of the utility model in a schematic manner, and the following examples and features in the examples can be combined with each other without conflict.

[0024] Please refer to Figure 1 The structural schematic view of the utility model is based on the drainage device of Tesla structure. It includes Tesla flow guide structure 2 and three-way rotary valve 3 on both sides. Tesla flow guide structure 2 includes several Tesla valve hole units 211 connected to form a flow guide channel, which is used to prevent liquid reflux. Three-way rotary valve 3 is used to switch different connecting ports to adapt to different types of catheters.

[0025] The three-way rotary valve 3 is made of medical-grade polycarbonate and high-density polyethylene material. The first tapered connecting port 12 of the upper rotary valve is designed in a tapered shape, which can be matched and connected with the wound drainage tube, double-sleeve drainage tube, and gastric tube. The second connecting port 13 is designed in a tubular shape, which is used to be matched and connected with the T tube. The adapter can be detachably connected with a sheath.

[0026] It can be understood that the connecting ports on the three-way rotary valve 3 can be designed in various shapes to adapt to the drainage interfaces of different conditions. The positions of the connecting ports on the three-way rotary valve 3 can also not be limited to the settings in the embodiment, for example, the second connecting port 13 is designed in a vertical direction, and the first tapered connecting port 12 is arranged in a vertical direction along the second connecting port 13. The original positions of the second tapered connecting port 11 and the threaded interface 14 are replaced, and the like.

[0027] Please refer to Figure 2 The Tesla valve drainage channel includes four Tesla valve hole units 211 connected to form a drainage channel, which is connected to the three-way rotary valve 3. The structure of the channel is the same as that of the valve hole of the Tesla valve. The Tesla valve hole unit 211 includes a straight main channel and a protruding annular channel, which specifically includes three hole sections c, d, and e.

[0028] When the liquid flows forward, the liquid mainly flows through the c hole (main channel) of each Tesla valve hole unit 211, and almost does not enter the d and e holes (annular channels). The forward flow of the liquid is smooth, and the resistance is very small.

[0029] If there is liquid regurgitation, the regurgitant liquid will flow in two ways, one through the c hole (main channel), and the other through the d and e holes (annular channels). The liquid flowing through the d and e holes flows in the opposite direction due to the guidance of the holes, and collides with the liquid flowing through the c hole, thereby losing a large amount of flow energy. Therefore, the resistance of the liquid regurgitation is large, and the anti-regurgitation effect is achieved.

[0030] It can be understood that the more Tesla valve hole units 211 the Tesla drainage structure 2 has, the greater the resistance of liquid regurgitation, and the better the anti-regurgitation effect. In the embodiment, four Tesla valve hole units 211 are included, so that the anti-regurgitation effect of the drainage channel is moderate, and the volume of the medical anti-regurgitation valve is small. The Tesla valve hole units 211 in the present scheme can be designed according to actual drainage requirements.

[0031] Please refer to Figure 3The structure diagram of the drainage ball box, the drainage ball 3 is circumscribed by the conical connecting port 11 or the threaded interface 14, the drainage ball 3 is placed in the box 4, a hollow fixing area with a size suitable for the drainage ball is arranged in the box 4, the drainage ball 3 can be fixed through the box 4, the drainage tube is connected to the drainage ball 3 through the slot hole 41, the pressure sensor 42 is arranged between the drainage ball 3 and the box 4, and the pressure sensor 42 is a flexible pressure sensor. The pressure sensor 42 can be connected with a prompt module such as a loudspeaker. When the drainage liquid in the drainage ball 4 accumulates, the internal pressure changes continuously, the ball body is inflated until the pressure monitored by the pressure sensor 42 reaches a certain value, and the prompt module sends an alarm prompt. Medical staff can squeeze and empty the drainage ball according to the prompt, and then perform subsequent drainage operation.

[0032] The use method of the utility model: when the patient is drained by the thick latex drainage tube, the first conical connecting port 12 is connected with the drainage tube port, the three-way rotary valve 3 is rotated to make the first conical connecting port 12 be connected with the flow guide channel formed by the Tesla valve hole unit 211, and then the drainage can be kept. When the patient needs to be drained by the T tube, the second connecting port 13 is inserted into the T tube port, the three-way rotary valve 3 is rotated to make the second connecting port 13 be connected with the flow guide channel formed by the Tesla valve hole unit 211, and then the drainage can be kept. Medical staff can rotate the three-way rotary valve 3 at the lower side to make the flow guide channel formed by the Tesla valve hole unit 211 be communicated with the conical connecting port or the threaded interface 14, the conical connecting port 11 or the threaded interface 14 is connected with the drainage ball 5, and then the drainage operation can be realized.

Claims

1. A flow directing device based on a Tesla structure, comprising a Tesla flow guiding structure (2), characterized in that, The Tesla flow guide structure (2) is connected with multiple connection ports for flow guide through a three-way rotary valve (3), and the three-way rotary valve (3) is rotated to switch different connection ports to adapt to different types of catheters. The three-way rotary valve (3) is connected with a drainage ball (5), and the drainage ball (5) is externally provided with a box body (4) with a size matched with the drainage ball (5), and a pressure sensor (42) is arranged on the inner wall of the box body (4) in contact with the drainage ball (5), so as to monitor the pressure value of the ball when the drainage ball (5) is expanded by effusion.

2. The drain based on the Tesla structure according to claim 1, characterized in that, The Tesla flow guide structure (2) includes a plurality of Tesla valve hole units (211) connected to form a flow guide channel, which is connected to the three-way rotary valve (3).

3. The Tesla structure based drainage device of claim 1, wherein, The box body (4) includes grooves (41) arranged on the upper and lower sides and pressure sensors (42) arranged on the left and right sides.

4. The Tesla structure based drainage device of claim 2, wherein, The Tesla valve hole unit (211) includes a straight main channel and a convex annular channel; when the liquid in the annular channel collides with the liquid in the main channel, the flow energy is lost to achieve the anti-reflux effect.

5. The Tesla structure based drainage device of claim 2, wherein, The Tesla flow guide structure (2) includes four Tesla valve hole units (211) connected to form a flow guide channel.

6. The Tesla structure based drainage device of claim 1, wherein, The Tesla flow guide structure (2) is respectively connected with three-way rotary valves (3) on both sides; the upper three-way rotary valve (3) includes a first conical connection port (12) and a second connection port (13), the first conical connection port (12) is adapted to be connected with a drainage tube port, and the second connection port (13) is adapted to be connected with a T tube.

7. The Tesla structure based drainage device of claim 6, wherein, The lower three-way rotary valve (3) includes a second conical connection port (11) and a threaded interface (14), and the lower three-way rotary valve (3) is adapted to be connected with various drainage devices.

8. The Tesla structure based drainage device of claim 6, wherein, The three-way rotary valve (3) is rotated to make the first conical connection port (12) or the second connection port (13) communicate with the flow guide channel to achieve the drainage effect.

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