A protection device for internal jugular vein catheter used in hemodialysis

Abstract

The present invention relates to a protective device for internal jugular vein catheters used in hemodialysis, belonging to the technical field of medical devices, and includes a neck negative pressure protection plate, a shoulder fixing clip, a negative pressure adsorption gasket, a disinfection atomizer, and a drying and dehumidifying device. A central controller is fixedly arranged on the outer side of the neck negative pressure protection plate. By setting a protective device that can simultaneously achieve firm sealing, waterproof isolation, and automatic and thorough disinfection to prevent infection, the combination of the negative pressure adsorption gasket and the outer drainage holes, combined with the internal drying and dehumidifying machine, is conducive to comprehensively and fully achieving waterproof sealing isolation, providing sufficient protection. Moreover, by using the atomizing disinfector in combination with the drying and dehumidifying device for automatic and thorough disinfection and dressing change, the simplicity of the disinfection operation is greatly improved. Additionally, the atomized disinfectant can fully and thoroughly contact and disinfect the interior, enhancing the disinfection effect, and fully realizing the prevention of possible contamination and infection of the indwelling catheter.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically to a protection device for an internal jugular vein catheter for hemodialysis. Background Art

[0002] The position of the central venous catheter for dialysis can be set in the internal jugular vein or the femoral vein, and both can achieve the function. However, since the leg is a high-frequency use area for daily activities, the catheter placement stability is poor, and it is easy to be pulled, causing injury to the patient. In addition, the internal jugular vein catheter placement has the advantages of reducing the risk of infection and trauma. Therefore, for patients with normal movement and living needs in clinical practice, the internal jugular vein catheter placement is a more suitable choice.

[0003] However, although the internal jugular vein catheter has the advantages of fast blood flow speed, high dialysis efficiency, low infection risk, and less trauma. However, the internal jugular vein catheter is still extremely likely to be infected at the catheter due to insufficient nursing disinfection, and the catheter may slip off due to insecure limiting and fixing.

[0004] At present, the protection means for the internal jugular vein catheter in the prior art is to wrap and paste the outside of the long-term catheter with a waterproof and sterile sticker to the vicinity of the neck, so as to prevent water and infection. However, only wrapping and pasting with a waterproof and sterile sticker cannot completely isolate the outside air and the water flow with a certain temperature and impact force during bathing. For the skin outlet of the catheter, it cannot be pasted and squeezed, so it cannot be hermetically isolated from the outside. Moreover, each time the catheter and the skin are disinfected, the waterproof and sterile sticker needs to be disassembled, disinfected, and pasted again. This process is complicated, and only smear disinfection will also cause incomplete disinfection of the internal small gaps. In addition, pasting and removing the sticker will pull the catheter, which may cause the catheter to fall off and damage the patient, and in severe cases, cause massive bleeding. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to propose a protection device for an internal jugular vein catheter for hemodialysis, so as to solve the problem that there is no protection device in the prior art that can simultaneously achieve firm sealing, waterproof isolation, and automatic and sufficient disinfection and anti-infection, resulting in incomplete sealing and isolation protection and insufficient disinfection, which causes infection of long-term catheters and endangers the health of patients.

[0006] The present invention is achieved through the following technical solutions:

[0007] A protection device for internal jugular vein catheter used in hemodialysis, including a neck negative pressure protection plate. A shoulder fixing clip is clamped and arranged at the upper end of the neck negative pressure protection plate. A negative pressure adsorption gasket is arranged inside the neck negative pressure protection plate. A disinfection atomizer and a drying and dehumidifying device are fixedly arranged outside the neck negative pressure protection plate. A disinfection atomization port is communicated and opened inside the negative pressure adsorption gasket by the disinfection atomizer. A drying and dehumidification port is communicated and opened inside the negative pressure adsorption gasket by the drying and dehumidifying device. A central controller is fixedly arranged outside the neck negative pressure protection plate. The central controller is connected with the negative pressure adsorption gasket, the disinfection atomizer and the drying and dehumidifying device respectively through wires.

[0008] Furthermore, the negative pressure adsorption gasket consists of a latex sealing ring fixedly arranged inside the neck negative pressure protection plate and a negative pressure suction machine fixedly arranged outside the neck negative pressure protection plate. The negative pressure suction machine is connected with the latex sealing ring through a pipeline.

[0009] Furthermore, a water absorption port is opened on the concave surface near the neck end of the neck negative pressure protection plate. A drain port is opened at the lower end of the neck negative pressure protection plate. The water absorption port and the drain port are communicated through a one-way valve. The one-way valve is connected with the central controller through a wire.

[0010] Furthermore, a humidity sensor and a temperature sensor are fixedly arranged inside the neck negative pressure protection plate. The humidity sensor and the temperature sensor are connected with the central controller through wireless signals.

[0011] Furthermore, a flexible gasket is fixedly arranged inside the shoulder fixing clip.

[0012] Furthermore, the neck negative pressure protection plate and the shoulder fixing clip are clamped and connected through a buckle.

[0013] Furthermore, waterproof and insulating coatings are arranged on the central controller, the negative pressure adsorption gasket, the disinfection atomizer, the negative pressure suction machine and the drying and dehumidifying device.

[0014] Furthermore, the disinfection atomizer includes a disinfectant liquid storage tank and an ultrasonic atomizer.

[0015] Furthermore, an inner side surface of the neck negative pressure protection plate and the inside of the negative pressure adsorption gasket surround to form a protection cavity. A drain groove is opened at the lower end of the protection cavity. The drain groove is communicated with the drain port through the one-way valve.

[0016] Furthermore, the main body of the neck negative pressure protection plate is made of aluminum plate, and a silica gel layer is fixedly pasted on the outside of the aluminum plate.

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

[0018] The present invention provides a protective device that can simultaneously achieve firm waterproof sealing and isolation and automated and thorough disinfection to prevent infection. By combining a negative pressure adsorption gasket and an outer drainage hole, and integrating an internal drying and dehumidifying machine, it is conducive to comprehensively and fully achieving waterproof sealing and isolation, providing sufficient protection. Moreover, by combining an atomizing disinfector and a drying and dehumidifying device for automated and thorough disinfection and dressing change, the simplicity of the disinfection operation is greatly improved. Additionally, the atomized disinfectant can thoroughly disinfect the interior by full contact, enhancing the disinfection effect and fully preventing possible contamination and infection of the indwelling catheter. Description of the Drawings

[0019] Figure 1 Oblique front view of the overall assembly structure;

[0020] Figure 2 Oblique rear view of the overall assembly structure;

[0021] Figure 3 Rear view of the overall assembly;

[0022] Figure 4 Side view of the overall assembly;

[0023] Figure 5 Bottom view of the overall assembly;

[0024] Figure 6 Internal structure diagram of the disinfection atomizer;

[0025] Figure 7 Control relationship diagram;

[0026] Figure 8 Front partial cross-sectional view of the main aluminum plate;

[0027] Figure 9 Middle and rear partial cross-sectional view of the main aluminum plate;

[0028] Figure 10 Cross-sectional view at the central axis of the main aluminum plate;

[0029] Figure 11 Cross-sectional view of the composition of the neck negative pressure protection plate;

[0030] Figure 12 Overall structure diagram after removing the shoulder fixing clip.

[0031] Description of the reference numerals:

[0032] 1. Neck negative pressure protection plate; 2. Shoulder fixing clip; 3. Negative pressure adsorption gasket; 4. Latex sealing ring; 5. Negative pressure suction machine; 6. Disinfection atomizer; 7. Drying and dehumidifying device; 8. Disinfection atomization port; 9. Drying and dehumidifying port; 10. Water absorption port; 11. Drainage port; 12. Check valve; 13. Central controller; 14. Disinfectant storage tank; 15. Ultrasonic atomizer; 16. Protection cavity; 17. Drainage trough; 18. Flexible gasket; 19. Humidity sensor; 20. Temperature sensor. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the above description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "one side", "the other side", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0037] In addition, terms such as "the same" do not mean that the components are absolutely the same, but there may be slight differences. The term "vertical" only means that the positional relationship between components is relatively more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0038] Such as Figures 1-6As shown in the figure, an embodiment provided by the present invention is a protection device for an internal jugular vein catheter for hemodialysis, which includes a neck negative pressure protection plate 1. At the upper end of the neck negative pressure protection plate, a shoulder fixing clip 2 is detachably connected by a buckle. Inside the neck negative pressure protection plate, there is a negative pressure adsorption gasket 3 for adsorbing and fixing on the human body surface. The negative pressure adsorption gasket is composed of a latex sealing ring 4 fixedly arranged inside the neck negative pressure protection plate and a negative pressure suction machine 5 fixedly arranged outside the neck negative pressure protection plate. The negative pressure suction machine is connected to the latex sealing ring through a pipeline. On the outside of the neck negative pressure protection plate, a disinfection atomizer 6 and a drying and dehumidifying device 7 are fixedly arranged. The disinfection atomizer is provided with a disinfection atomization port 8 communicating inside the negative pressure adsorption gasket, and the drying and dehumidifying device is provided with a drying and dehumidifying port 9 communicating inside the negative pressure adsorption gasket. The disinfection atomization port and the drying and dehumidifying port are both opened on the inner side surface of the neck negative pressure protection plate and communicate with the cavity formed by the neck negative pressure protection plate and the negative pressure adsorption gasket. On the concave surface near the neck end of the neck negative pressure protection plate, a plurality of water absorption ports 10 for quickly absorbing the accumulated water appearing at the concave surface are evenly arranged. At the lower end of the neck negative pressure protection plate, a drainage port 11 is opened. The water absorption port and the drainage port are connected through a one-way valve 12. On the outside of the neck negative pressure protection plate, a central controller 13 is fixedly arranged. The central controller is connected to the negative pressure adsorption gasket, the disinfection atomizer, and the drying and dehumidifying device through wires respectively. Inside the neck negative pressure protection plate, a humidity sensor 19 and a temperature sensor 20 are fixedly arranged. The humidity sensor and the temperature sensor are connected to the central controller through wireless signals. The above-mentioned disinfection atomizer is composed of a disinfectant storage tank 14 and an ultrasonic atomizer 15. The inner side surface of the neck negative pressure protection plate and the inner side of the negative pressure adsorption gasket surround to form a protection cavity 16. At the lower end of the protection cavity, a drainage groove 17 is opened. The drainage groove is connected to the drainage port through a one-way valve.

[0039] When this embodiment is implemented, first, the neck negative pressure protection plate is detachably connected to the shoulder fixing clip by a buckle. After assembly, the neck negative pressure protection plate is aligned with the position where the indwelling catheter contacts the human body, and the indwelling catheter is placed into the protection cavity. Then, the negative pressure adsorption gasket is brought close to the human body. After the basic approximation is completed, the central controller is used to control the negative pressure suction machine to start, so that the air inside the latex sealing ring is discharged to form a negative pressure cavity. Thus, the neck negative pressure protection plate is pressed tightly against the human body surface by the atmospheric pressure, and the basic wearing is completed after being completely pressed.

[0040] When it is necessary to disinfect the indwelling catheter inside the protective cavity and the contact position between the indwelling catheter and the human body, the central controller is used to control the disinfection atomizer to atomize the drug in the disinfectant liquid storage tank through the action of ultrasonic atomization, and then it is transmitted to the disinfection atomization port through the pipeline and diffused in the protective cavity. After sufficient contact with each part to complete disinfection, after disinfection, the central controller is used to control the one-way valve to make the waste liquid in the protective cavity drain out of the protective cavity along the drainage groove, and at the same time control the drying and dehumidifying device to perform warm air circulation and ventilation in the protective cavity, so as to realize the drying of the protective cavity. Complete the automatic disinfection and dressing change operation.

[0041] When the patient needs to take a bath or sweats a lot, most of the external liquid is isolated outside. The central controller controls the one-way valve to make the water absorption port suck the liquid deposited in the concave surface and discharge it from the drain port to achieve auxiliary waterproofing. The humidity sensor and temperature sensor in the protective cavity monitor in real time. When the monitored value exceeds the normal range, the central controller controls the one-way valve and the drying and dehumidifying device to drain and dehumidify the protective cavity in time. Then, combined with a round of atomization disinfection, it can ensure that the protective cavity is always dry and free from external infection.

[0042] In this embodiment, by setting a protective device that can simultaneously achieve firm sealing, waterproof isolation, and automatic and sufficient disinfection and infection prevention, the combination of the negative pressure adsorption gasket and the outer drainage holes is used and combined with the internal drying and dehumidifying machine, which is beneficial to comprehensively and fully carry out waterproof sealing and isolation, play a full protection role, and use the atomization disinfector combined with the drying and dehumidifying device to carry out automatic and sufficient disinfection and dressing change, greatly improving the simplicity of the disinfection operation. And the atomized disinfectant can fully and thoroughly contact and disinfect the inside, improving the disinfection effect, and fully realizing the prevention of possible contamination and infection of the indwelling catheter.

[0043] In this embodiment, a flexible gasket 18 is fixedly arranged inside the shoulder fixing clip, which is beneficial to improve the comfort of the patient when wearing.

[0044] In this embodiment, the neck negative pressure protection plate and the shoulder fixing clip are snap-connected, which is beneficial to quickly and conveniently remove them during rest and sleep, and avoid the compression discomfort caused by wearing the shoulder fixing clip.

[0045] In this embodiment, the central controller, the negative pressure adsorption gasket, the disinfection atomizer, the negative pressure suction machine, and the drying and dehumidifying device are all provided with waterproof and insulating coatings, which helps to keep themselves dry and avoid erosion when external liquid invades and adheres. Moreover, the central controller, the negative pressure adsorption gasket, the disinfection atomizer, the negative pressure suction machine, and the drying and dehumidifying device are all fixedly placed inside a waterproof protective cover, which can be opened and locked, thus helping to further prevent water and allowing it to be opened and closed at any time to operate the internal devices; in addition, corresponding ventilation openings are provided on the waterproof protective covers of the drying and dehumidifying device and the negative pressure suction machine, and a waste water discharge port is provided at the lower end of the waterproof protective cover of the drying and dehumidifying device. Electric control valves synchronously controlled by the central controller are provided on both the ventilation openings and the waste water discharge port, which helps to prevent water while allowing ventilation and helps to discharge the air containing waste liquid extracted by the drying and dehumidifying device.

[0046] In this embodiment, the main body of the neck negative pressure protection plate is made of aluminum plate, and a silica gel layer is fixedly pasted on the outer side of the aluminum plate. By using the aluminum plate to make the main body of the neck negative pressure protection plate, it is beneficial to ensure that when it is necessary to finely adjust and fit the patient's neck curve, it can be moderately deformed by an external force to adapt to the patient's neck curve so that it can be sealed with the neck. Moreover, the aluminum plate has a certain stiffness, so it can still maintain a fixed shape after deformation and will not collapse. By setting the outer silica gel layer, it is beneficial to improve the comfort of the patient when using and wearing it due to its soft characteristics and can provide better airtightness. The neck negative pressure protection plate is also made of an aluminum plate as the main body, and a silica gel layer is fixedly provided on the outer side of the aluminum plate, which is beneficial for adjustment at any time.

[0047] In this embodiment, the main body of the neck negative pressure protection plate can be specifically set according to the patient's neck information to make it fit the patient's neck as much as possible. Moreover, the aluminum plate main body can be integrally formed by 3D printing to ensure the accuracy of the pipeline relationship on the aluminum plate and ensure the accuracy of the size. Before preparing the neck negative pressure protection plate, the scanned patient neck data is modeled first, and the size of the neck negative pressure protection plate is designed in combination with the external position information of the internal jugular vein catheter so that it can conform to the neck curved surface shapes of different patients. Using the 3D printing method, the neck negative pressure protection plate with specific dimensions can be printed and made accurately and quickly, which is beneficial to improving the manufacturing precision and speed of the device.

[0048] In this embodiment, to ensure that the various functional pipelines do not interfere with each other, the pipelines that play the functions of drying and disinfection are arranged in the front part of the aluminum plate, and the pipelines that play the functions of water absorption and drainage are arranged in the middle and rear parts of the aluminum plate, thus avoiding the cross-interference of the two pipelines.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. 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 protective device for an internal jugular vein catheter used in hemodialysis, characterized in that: It includes a neck negative pressure protection plate, on the upper end of which a shoulder fixing clip is snap-connected. Inside the neck negative pressure protection plate, a negative pressure adsorption gasket is provided. Outside the neck negative pressure protection plate, a disinfection atomizer and a drying and dehumidifying device are fixedly arranged. The disinfection atomizer is provided with a disinfection atomization port communicating inside the negative pressure adsorption gasket, and the drying and dehumidifying device is provided with a drying and dehumidifying port communicating inside the negative pressure adsorption gasket. A central controller is fixedly arranged outside the neck negative pressure protection plate. The central controller is connected to the negative pressure adsorption gasket, the disinfection atomizer and the drying and dehumidifying device respectively through wires. An absorption port is opened on the concave surface near the neck end of the neck negative pressure protection plate, and a drain port is opened at the lower end of the neck negative pressure protection plate. The absorption port and the drain port are communicated through a one-way valve, and the one-way valve between the absorption port and the drain port is connected to the central controller through a wire. An inner side surface of the neck negative pressure protection plate and the inside of the negative pressure adsorption gasket surround to form a protection cavity. A drain groove is opened at the lower end of the protection cavity, and the drain groove is communicated with the drain port through a one-way valve between the drain groove and the drain port. The central controller controls the one-way valve between the absorption port and the drain port to suck the liquid deposited in the concave surface through the absorption port and discharge it from the drain port.

2. The internal jugular vein catheter protection device for hemodialysis according to claim 1, wherein: The negative pressure adsorption gasket is composed of a latex sealing ring fixedly arranged inside the neck negative pressure protection plate and a negative pressure suction machine fixedly arranged outside the neck negative pressure protection plate. The negative pressure suction machine is connected to the latex sealing ring through a pipeline.

3. The internal jugular vein catheter protection device for hemodialysis according to claim 1, characterized in that: A humidity sensor and a temperature sensor are fixedly arranged inside the neck negative pressure protection plate. The humidity sensor and the temperature sensor are connected to the central controller through wireless signals.

4. The internal jugular vein catheter protection device for hemodialysis according to claim 1, characterized in that: A flexible gasket is fixedly arranged inside the shoulder fixing clip.

5. The internal jugular vein catheter protection device for hemodialysis according to claim 1, wherein: The neck negative pressure protection plate and the shoulder fixing clip are snap-connected through a buckle.

6. The internal jugular vein catheter protection device for hemodialysis according to claim 2, characterized in that: The central controller, the negative pressure adsorption gasket, the disinfection atomizer, the negative pressure suction machine and the drying and dehumidifying device are all provided with waterproof and insulating coatings.

7. The internal jugular vein catheter protection device for hemodialysis according to claim 1, wherein: The disinfection atomizer includes a disinfectant liquid storage tank and an ultrasonic atomizer.

8. A protection device for an internal jugular vein catheter for hemodialysis according to any one of claims 1-7, characterized in that: The main body of the neck negative pressure protection plate is made of an aluminum plate, and a silica gel layer is fixedly pasted on the outside of the aluminum plate.

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