Protective cover

Abstract

The utility model relates to the technical field of medical instruments, and discloses a protective cover which comprises a cover body, the cover body is provided with a cavity, the bottom of the cavity is W-shaped, the cavity comprises a first cavity body, a third cavity body and a second cavity body which are sequentially connected, and the bottom of the first cavity body and the bottom of the second cavity body are both V-shaped; the tracheostomy sleeve joint is connected with the third cavity body; the humidifying filter screens communicate with the cavity, and the multiple humidifying filter screens are located at the first cavity and the second cavity correspondingly; and the sputum drainage tube is positioned at the bottommost part of the cavity. According to the sputum drainage tube, the tracheostomy sleeve joint is connected with the third cavity, so that sputum is sprayed to the inner wall of the third cavity through the tracheostomy sleeve joint, the sputum is prevented from being sprayed to humidifying filter screens on the first cavity and the second cavity, and the W-shaped cavity is beneficial to sputum convergence and is beneficial to efficiently discharging the sputum by the sputum drainage tube.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a protective cover. Background Art

[0002] Tracheotomy is an invasive procedure, often used to solve the breathing difficulties caused by upper airway obstruction and long-term endotracheal intubation and mechanical ventilation. This operation can ensure the patient's airway is unobstructed and maintain respiratory function. It is widely used in various surgeries to improve the patient's respiratory condition. After tracheotomy, the patient does not breathe through the mouth and nose, but breathes and expectorates through the tracheostomy tube. However, since the normal defense function of the respiratory tract is destroyed after surgery, the moisturizing function of the respiratory tract is lost, which can easily make the airway secretions become viscous and even form sputum crusts, making it difficult for the patient's airway secretions to cough up, causing breathing difficulties. In addition, insufficient humidification can cause damage to the ciliary system, reduce the ability to remove foreign bodies, and cause respiratory inflammation.

[0003] By setting a protective cover on the tracheotomy tube, the humidification filter of the protective cover can humidify the airway to reduce complications and keep the airway open. When the patient sprays airway sputum from the tracheotomy tube port, the protective cover will block the sputum and prevent it from spraying into the surrounding environment and causing contamination of the patient's clothes and bed.

[0004] In the prior art, when the protective cover blocks sputum, the sputum can easily be sprayed onto the humidification filter, causing the humidification filter to be easily attached with sputum, blocking the airway, reducing the humidification function and cleaning function of the humidification filter, increasing the risk of bacterial infection, and making it difficult to clean the sputum in the protective cover. Utility Model Content

[0005] The technical problem to be solved by the utility model is to solve the problem that the humidification filter is easily attached with sputum and is difficult to clean the sputum.

[0006] In order to solve the above technical problems, the utility model provides a protective cover, comprising: a cover body, the cover body is provided with a cavity, the bottom shape of the cavity is W-shaped, the cavity comprises a first cavity, a third cavity and a second cavity connected in sequence, the bottom shape of the first cavity and the bottom shape of the second cavity are both V-shaped; a tracheostomy tube joint, the first end of the tracheostomy tube joint is connected to the third cavity, and the second end of the tracheostomy tube joint is connected to the tracheostomy tube; a humidification filter, one side of the humidification filter is connected to the cavity, and the other side of the humidification filter is connected to the outside world, and a plurality of the humidification filters are respectively located in the first cavity and the second cavity; a sputum drainage tube, the sputum drainage tube is connected to the cavity, and the sputum drainage tube is located at the bottom of the cavity.

[0007] Furthermore, the sputum drainage tube includes a first drainage tube and a second drainage tube, the first drainage tube is connected to the first cavity, the sputum drainage tube is located at the lowest point of the bottom of the first cavity, and the second drainage tube is connected to the second cavity, the sputum drainage tube is located at the lowest point of the bottom of the second cavity.

[0008] Furthermore, the sputum drainage tube is provided with a drainage tube clamp and a tube plug.

[0009] Furthermore, it also includes an oxygen inhalation pipeline, which is arranged on the cover body, the first end of the oxygen inhalation pipeline is connected to the tracheotomy tube joint, the port of the first end of the oxygen inhalation pipeline is an oblique port, and the second end of the oxygen inhalation pipeline is provided with a pipe plug.

[0010] Furthermore, it also includes a sputum suction pipe, which is arranged on the cover body, one end of the sputum suction pipe is connected to the tracheotomy tube joint, and the other end of the sputum suction pipe is provided with a pipe plug.

[0011] Furthermore, it also includes a fixing belt, which is arranged on the mask body and is used to fix the mask body on the patient's neck.

[0012] Furthermore, the first end of the tracheotomy tube joint is connected to the first side of the third cavity, the first side of the third cavity corresponds to the second side of the third cavity, and the second side of the third cavity is an arcuate side concave toward the tracheotomy tube joint.

[0013] Furthermore, one end of the third cavity is connected to the first cavity through a first pipe, and the other end of the third cavity is connected to the second cavity through a second pipe.

[0014] Furthermore, the humidification filter is made of a filter material with air permeability, sterilization and water absorption functions, and a humidification liquid is added to the humidification filter, and the humidification liquid contains sterile physiological saline.

[0015] Furthermore, the cover body is made of transparent material.

[0016] Compared with the prior art, the protective cover provided by the embodiment of the utility model has the following beneficial effects: by connecting the first end of the tracheostomy tube connector to the third cavity and the second end of the tracheostomy tube connector to the tracheostomy tube, the sputum sprayed out of the tracheostomy tube is sprayed onto the inner wall of the third cavity through the tracheostomy tube connector, effectively preventing the sputum from being sprayed onto the humidification filter located on the first cavity and the second cavity. The cavity with a W-shaped bottom is conducive to the gathering of sputum. By setting the bottom shape of the first cavity and the second cavity to a V shape, the sputum at the inner wall of the third cavity flows into the first cavity and the second cavity according to gravity, which is conducive to the gathering of sputum to the bottom of the first cavity and the second cavity. The sputum is then discharged with a sputum drainage tube located at the bottom of the cavity, which helps to drain the sputum efficiently, avoid sputum accumulation on the inner wall of the cavity, and prevent sputum from flowing back into the tracheostomy tube, thereby maintaining the cleanliness of the patient's respiratory tract. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the protective cover provided by the utility model;

[0018] Figure 2 It is a schematic diagram of the protective cover provided by the utility model being connected to the tracheotomy cannula;

[0019] Figure 3 It is an internal perspective view of the power module of the protective cover provided by the utility model.

[0020] The corresponding relationship between the reference numerals and the component names is as follows:

[0021] 1. mask body; 11. cavity; 111. first cavity; 112. second cavity; 113. third cavity; 2. tracheotomy tube joint; 3. humidification filter; 4. sputum drainage tube; 41. tube plug; 42. drainage tube clamp; 5. oxygen inhalation tube; 6. sputum suction tube. DETAILED DESCRIPTION

[0022] The specific implementation methods of the present invention are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. It should be noted that unless otherwise specifically stated, the relative arrangement and numerical values ​​of the components and steps described in these examples do not limit the scope of the present invention.

[0023] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0024] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0025] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0026] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0027] like Figures 1 to 3 As shown, an embodiment of the utility model discloses a protective cover, comprising: a cover body 1, a tracheotomy tube joint 2, a humidification filter 3 and a sputum drainage tube 4.

[0028] Among them, the mask body 1 is provided with a cavity 11, the bottom shape of the cavity 11 is W-shaped, and the cavity 11 includes a first cavity 111, a third cavity 113 and a second cavity 112 which are connected in sequence, and the bottom shape of the first cavity 111 and the bottom shape of the second cavity 112 are both V-shaped; the first end of the tracheostomy tube joint 2 is connected to the third cavity 113, and the second end of the tracheostomy tube joint 2 is connected to the tracheostomy tube; one side of the humidification filter 3 is connected to the cavity 11, and the other side of the humidification filter 3 is connected to the outside world, and multiple humidification filters 3 are respectively located in the first cavity 111 and the second cavity 112; the sputum drainage tube 4 is connected to the cavity 11, and the sputum drainage tube 4 is located at the bottom of the cavity.

[0029] The protective cover of the present application connects the first end of the tracheostomy tube connector 2 to the third cavity 113, and the second end of the tracheostomy tube connector 2 to the tracheostomy tube, so that the sputum sprayed from the tracheostomy tube is sprayed to the inner wall of the third cavity 113 through the tracheostomy tube connector 2. The first cavity 111, the second cavity 112 and the third cavity 113 are provided on the cover body 1, the tracheostomy tube connector 2 is provided on the third cavity 113, and the humidification filter 3 is provided on the first cavity 111 and the second cavity 112, so as to effectively prevent the sputum from being sprayed to the wet filter 3 located on the first cavity 111 and the second cavity 112. On the filter 3, the cavity 11 with a W-shaped bottom is conducive to the gathering of sputum. By setting the bottom shapes of the first cavity 111 and the second cavity 112 to be V-shaped, the sputum at the inner wall of the third cavity 113 can flow into the first cavity 111 and the second cavity 112 according to gravity, which is conducive to the sputum gathering at the bottom of the first cavity 111 and the second cavity 112, and then the sputum drainage tube 4 located at the bottom of the cavity 11 is used to discharge the sputum, which helps to drain the sputum efficiently and avoid sputum accumulation on the inner wall of the cavity 11. The sputum is not easy to flow back into the tracheostomy tube joint 2, thereby maintaining the cleanliness of the patient's respiratory tract.

[0030] The cavity 11 inside the mask body 1 includes a first cavity 111, a second cavity 112 and a third cavity 113, wherein the two ends of the third cavity 113 are respectively connected to the first cavity 111 and the second cavity 112, which can effectively separate and manage different functional areas, and separate the area where the humidification filter 3 is set from the area that is susceptible to sputum spraying, so that the humidification filter 3 avoids the direction of sputum spraying, and on the basis of effectively humidifying the airway and filtering the air, it is difficult for sputum to adhere to the humidification filter 3, which is beneficial to improving the stability of the humidification function and cleaning function of the humidification filter 3.

[0031] The protective cover can effectively prevent sputum from being sprayed into the surrounding environment through the tracheostomy tube, prevent sputum from contaminating the patient's clothes and bed, reduce cross infection of other patients in the same ward, and protect the skin around the tracheostomy tube to avoid soft tissue infection. At the same time, patients do not have to worry about sputum splashing everywhere, which can reduce the patient's anxiety. The protective cover is easy to use, simple in structure, easy to make, low in cost, easy to promote and mass-produce. Compared with the protection method of covering the tracheostomy tube mouth with wet gauze, the above-mentioned protective cover does not have to worry about the flat gauze deforming into a ball and entering the tracheostomy tube as the patient's airflow changes, causing the patient to suffocate.

[0032] like Figure 3 As shown, in an optional embodiment of the utility model, the sputum drainage tube 4 includes a first drainage tube and a second drainage tube, the first drainage tube is connected to the first cavity 111, and the sputum drainage tube 4 is located at the lowest point of the bottom of the first cavity 111, and the second drainage tube is connected to the second cavity 112, and the sputum drainage tube 4 is located at the lowest point of the bottom of the second cavity 112.

[0033] By allowing the first drainage tube and the second drainage tube to be connected to the first cavity 111 and the second cavity 112 respectively, the sputum in different cavities in the W-shaped cavity 11 is effectively drained, the sputum drainage range is increased, the sputum drainage dead angle is reduced, and sputum accumulation is avoided, which helps to improve drainage efficiency and reduce the risk of infection. The first drainage tube and the second drainage tube are respectively located at the lowest point at the bottom of the first cavity 111 and the second cavity 112, which is conducive to the natural flow of sputum to the drainage tube, reduces the possibility of residual sputum, and keeps the respiratory tract unobstructed and clean. The first drainage tube is connected to the first cavity 111, and the second drainage tube is connected to the second cavity 112, ensuring that sputum can be directly discharged into the corresponding drainage tube, avoiding confusion and obstruction, and improving the drainage effect. By having the drainage tube located at the lowest point at the bottom, sputum can be effectively discharged, sputum can be avoided from being retained in the cavity 11, and the opportunity of bacterial growth is reduced, which helps to maintain the cleanliness and health of the respiratory tract.

[0034] like Figure 2 and Figure 3As shown, in an optional embodiment of the utility model, the sputum drainage tube 4 is provided with a drainage tube clamp 42 and a tube plug 41. The drainage tube clamp 42 can effectively control the speed and amount of sputum discharged from the sputum drainage tube 4, and avoid excessive drainage causing airflow disturbance in the cavity 11, thereby giving pathogens in the sputum a chance to cause adverse respiratory reactions or infections. By adjusting the tightness of the drainage tube clamp 42, the drainage effect of the sputum drainage tube 4 can be better controlled. The setting of the tube plug 41 can effectively prevent sputum from overflowing, and the tube plug 41 can also seal the drainage tube opening when necessary, avoiding the risk of external pathogens infecting the patient's respiratory tract from the sputum drainage tube 4, and facilitating the patient to keep it clean and hygienic when carrying or moving.

[0035] The combination of the drainage tube clamp 42 and the tube plug 41 can help medical staff better manage and control the sputum drainage process. When the tube plug 41 is opened to allow the sputum drainage tube 4 to connect to the negative pressure generating device, the drainage tube clamp 42 is used to clamp the sputum drainage tube 4 to prevent sputum from flowing out to the surroundings and causing pollution during the connection process of the negative pressure generating device, which is conducive to improving the drainage effect of the sputum drainage tube 4 with the help of the negative pressure generating device. The combination of the drainage tube clamp 42 and the tube plug 41 can make the sputum discharge operation simpler and more convenient. Medical staff can flexibly adjust the drainage speed and state of the drainage tube according to actual conditions, improve work efficiency, and it is also easier for patients to accept and adapt.

[0036] like Figure 1 and Figure 3 As shown, in an optional embodiment of the utility model, it also includes an oxygen inhalation pipeline 5, which is arranged on the mask body 1, and the first end of the oxygen inhalation pipeline 5 is connected to the tracheotomy tube connector 2, the port of the first end of the oxygen inhalation pipeline 5 is an oblique port, and the second end of the oxygen inhalation pipeline 5 is provided with a pipe plug 41.

[0037] By connecting the two ends of the oxygen inhalation pipeline 5 to the tracheostomy tube connector 2 and the oxygen delivery tube, respectively, an additional oxygen supply is provided to the tracheostomy tube, which helps to improve the patient's oxygenation and alleviate breathing difficulties. The port at the first end of the oxygen inhalation pipeline 5 is an oblique port, so that sputum is not easy to adhere to the port of the oxygen inhalation pipeline 5.

[0038] The oxygen inhalation pipeline 5 is arranged on the mask body 1 for convenient use, and is connected to the tracheostomy tube connector 2 to ensure that oxygen is directly delivered to the patient's respiratory tract. The oblique opening at the first end of the oxygen inhalation pipeline 5 increases the port oblique surface area, which is beneficial to the delivery of oxygen and improves the oxygen utilization rate. By providing a pipe plug 41 at the second end of the oxygen inhalation pipeline 5, the opening of the oxygen inhalation pipeline 5 can be closed when the oxygen delivery tube is not in use, preventing external pollutants from entering the pipeline, which is beneficial to the cleanliness and hygiene of oxygen delivery.

[0039] Specifically, the oblique end of the oxygen inhalation pipe 5 faces the central axis of the tracheostomy tube joint, and the oblique end of the oxygen inhalation pipe 5 is close to the inner wall of the tracheostomy tube, allowing sputum at the port of the oxygen inhalation pipe 5 to slide along the oblique end to the inner wall of the tracheostomy tube, making it difficult for sputum to adhere to the port of the oxygen inhalation pipe 5.

[0040] like Figure 3 As shown, in an optional embodiment of the utility model, it also includes a sputum suction pipe 6, which is arranged on the mask body 1, one end of the sputum suction pipe 6 is connected to the tracheotomy tube connector 2, and the other end of the sputum suction pipe 6 is provided with a pipe plug 41.

[0041] By setting the sputum suction pipe 6 on the mask body 1, it is convenient for the nursing staff to use the sputum suction pipe connected to the negative pressure generator to assist in sputum suction. The setting of the sputum suction pipe 6 can help the sputum suction pipe to quickly align with the tracheostomy tube joint 2, clear the sputum in the patient's respiratory tract, keep the respiratory tract unobstructed, and avoid spraying on medical staff or people around when the nursing staff assists in sputum suction, thereby reducing the risk of infection. By connecting the sputum suction pipe 6 to the tracheostomy tube joint 2, the sputum suction operation of the sputum suction pipe can be facilitated, reducing the obstruction of sputum to breathing, and contributing to the cleanliness and health of the respiratory tract.

[0042] By providing a pipe plug 41 at the other end of the sputum suction pipe 6, the sputum suction pipe 6 can be closed when needed to prevent sputum from overflowing or contaminating the pipe, which is conducive to keeping the sputum suction pipe 6 clean and ensuring the hygiene and cleanliness of the sputum suction operation. The oxygen suction pipe 5, the sputum suction pipe 6 and the tracheotomy cannula joint 2 provide a comprehensive respiratory care solution. By clearing sputum, providing oxygen support and other measures, the patient's respiratory function can be comprehensively improved, breathing difficulties can be alleviated, and recovery can be promoted.

[0043] In an optional embodiment of the utility model, a fixing belt is further included. The fixing belt is arranged on the mask body 1 and is used to fix the mask body 1 to the patient's neck. By arranging the fixing belt, the mask body 1 can be firmly fixed to the patient's neck to prevent the mask body 1 from shifting or falling off. The fixing position of the fixing belt allows for personalized adjustment according to the specific conditions of the patient. By adjusting the tightness and position of the fixing belt, it can be ensured that the mask body 1 fits tightly to the patient.

[0044] The material of the fixing belt will take into account the comfort of the patient. The use of soft and comfortable materials and ergonomic design can reduce the patient's discomfort and improve the patient's satisfaction with use. The fixing belt can improve the safety of the protective cover. The stable fixing belt can prevent the protective cover from accidentally falling off or breaking during use, causing sputum to spill around, thereby ensuring the safety of patients and medical staff. The use of the fixing belt makes it more convenient and quick to wear the protective cover. Medical staff can quickly fix the cover body 1 to the patient's neck through the fixing belt, eliminating the cumbersome steps of buckling and tightening, thereby improving work efficiency.

[0045] Specifically, the fixing belt can be fixed by an elastic belt in combination with a buckle, or by a Velcro in combination with a bandage.

[0046] In an optional embodiment of the utility model, the first end of the tracheostomy tube connector 2 is connected to the first side of the third cavity 113, the first side of the third cavity 113 corresponds to the second side of the third cavity 113, and the second side of the third cavity 113 is an arc-shaped side concave toward the tracheostomy tube connector 2.

[0047] By making the first side surface provided with the tracheostomy tube connector 2 correspond to the second side surface of the third cavity 113, the sputum ejected from the tracheostomy tube connector 2 is ejected onto the second side surface. By setting the second side surface of the third cavity 113 as an arcuate side surface concave toward the tracheostomy tube connector 2, the port of the tracheostomy tube connector is directly opposite to the inclined surface of the second side surface. Since the arcuate side surface is inclined toward the inner side of the protective cover, the sputum ejected onto the arcuate side surface is facilitated to quickly fall into the first cavity 111 and the first cavity 111, thereby reducing the sputum adhering to the side surface of the third cavity 113 and reducing the risk of respiratory bacterial infection in patients.

[0048] The arc-shaped side surface concave toward the tracheostomy tube connector 2 can improve the wearing comfort of the patient, reduce the uncomfortable pressure on the neck, and improve the wearing comfort.

[0049] In an optional embodiment of the utility model, one end of the third cavity 113 is connected to the first cavity 111 through a first pipe, and the other end of the third cavity 113 is connected to the second cavity 112 through a second pipe.

[0050] The third cavity 113 is connected to the first and second cavities 112 through the first pipe and the second pipe. On the basis of realizing the effective circulation of oxygen between different cavities, sputum can be effectively discharged from the bottom of the first cavity 111 and the second cavity 112 through the first pipe and the second pipe, and the distance between the third cavity 113 and the first and second cavities 112 is increased, which is beneficial to reduce the impact of accumulated sputum on the patient's respiratory airway, and is beneficial to reduce the breeding of pathogens on the basis of oxygenation of the patient's respiratory tract, reduce the occurrence of complications, and improve the quality of treatment.

[0051] The second cavity 112 and the first cavity 111 are more flexibly arranged in the position of the protective cover, which means that the position of the cavity can be flexibly arranged according to the patient's usage requirements, which is conducive to the production of diversified products and helps to provide more personalized respiratory support solutions to meet the respiratory treatment needs of different patients.

[0052] In an optional embodiment of the utility model, a rubber ring is provided at the second end of the tracheostomy tube connector 2, and the rubber ring is used to fix the tracheostomy tube connector 2 on the tracheostomy tube. By setting the rubber ring on the second end of the tracheostomy tube connector 2, it is possible to ensure that the tracheostomy tube connector 2 is firmly fixed on the tracheostomy tube, thereby reducing the occurrence of loosening or falling off of the tracheostomy tube connector 2. The fixed connection method of the rubber ring makes it easy to install and replace the protective cover. Medical staff only need to place the tracheostomy tube connector 2 on the tracheostomy tube through simple operations and fix it with the rubber ring, thereby saving time and operation complexity.

[0053] In an optional embodiment of the utility model, the humidification filter 3 is made of a filter material with air permeability, sterilization and water absorption functions, and a humidification liquid is added to the humidification filter 3, and the humidification liquid contains sterile physiological saline.

[0054] Because the filter material has air permeability, air can smoothly pass through the humidification filter 3, which helps to improve air circulation and humidification effect. The filter material has a sterilization function, filters fine particles in the surrounding environment, and can also reduce the patient's lung infection, effectively eliminate bacteria and viruses in the air, purify the air, and reduce the occurrence of bacterial infections in the patient's respiratory tract. The filter material can absorb the humidification liquid, so that it is continuously released into the humidification filter 3 space, and the humidification flow passes through the humidification filter 3 air, effectively increasing the humidity in the air, which helps to improve the dry breathing environment and is beneficial to the health of the respiratory tract. The humidification liquid adopts sterile physiological saline, which is safe and non-irritating, can maintain the hygiene of the humidification filter 3, and is harmless to the human body, suitable for long-term use. At the same time, the humidification of the humidification filter 3 is more sterile, has water absorption, and can spray mist-like physiological saline. When the humidity of the humidification filter 3 of the protective cover is insufficient, the humidification liquid can be directly sprayed on the humidification filter 3 to increase the humidity flowing through the protective cover, which helps the respiratory tract to maintain a suitable humidity for a long time.

[0055] Specifically, the humidification filter 3 is a circular fine-pore filter distributed on the outer wall of the protective cover. The humidification filter 3 helps the protective cover to adjust the air humidity, keep the circulating air moist, and reduce the adverse effects of dry respiratory system.

[0056] In an optional embodiment of the utility model, the cover body 1 is made of a transparent material. The cover body 1 is made of a transparent and soft medical polypropylene material. The transparent cover body 1 enables medical staff to clearly see the internal environment, reducing the visual barrier, and can clearly know the condition of sputum accumulation in the cavity 11, which helps to discharge sputum through the sputum drainage tube 4 in time. When suctioning the airway, medical staff can fully observe the patient's tracheotomy tube.

[0057] In an optional embodiment of the utility model, the head of the bed is raised to 30 degrees, the patient is placed in a semi-recumbent position, the sterile protective cover is taken out, the tracheostomy tube connector 2 is inserted into the tracheostomy tube, and a rubber ring is set on the outside of the port of the tracheostomy tube connector 2, so as to fix the tracheal connector 2 on the tracheostomy tube; if necessary, a fixing belt with a Velcro strap can be used to fix the protective cover to the patient's neck; if oxygen is needed, the pipe plug 41 of the oxygen inhalation pipeline 5 is opened, and the oxygen inhalation tube is inserted into the oxygen inhalation pipeline 5; when the patient coughs up sputum, the sputum is mainly sprayed onto the arc-shaped side of the third cavity 113 of the protective cover, and finally the sputum is guided by the arc-shaped structure due to gravity and gathered at the two depressions on the lower wall of the W-shaped cavity 11, specifically gathered at the lowest points of the first cavity 111 and the second cavity 112. If the sputum is gathered more, the pipe plug 41 of the sputum drainage tube 4 can be opened and the drainage tube clamp 4 can be used. 2 clamps the sputum drainage tube 4 to prevent sputum from leaking out, then connects the negative pressure suction device or syringe to the tube mouth of the sputum drainage tube 4, and then loosens the drainage tube clamp 42 to fully suck out the sputum. A small amount of physiological saline can also be injected through the sputum drainage tube 4 to clean the sputum attached to the wall where the sputum gathers; when a nurse is needed to assist in suctioning sputum, the patient takes a semi-recumbent position, opens the mouth plug of the sputum suction pipe 6, inserts the sputum suction pipe into the sputum suction pipe 6 of the protective cover, inserts it into the tracheostomy cannula through the tracheostomy cannula connector 2, and further inserts it into the airway to suction sputum. The cover body 1 of the protective cover is mainly made of transparent material, and the patient's tracheostomy cannula situation can be fully observed during suctioning sputum; when the moisture content of the humidification filter 3 of the protective cover is reduced, a sterile small spray bottle can be used to spray sterile physiological saline spray on the surface of the humidification filter 3, and the patient can breathe through the humidification filter 3 to exhale carbon dioxide. At the same time, the sterile filter can filter fine particles in the environment.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A protective cover, characterized in that: include: A cover body, wherein the cover body is provided with a cavity, the bottom shape of the cavity is W-shaped, the cavity comprises a first cavity, a third cavity and a second cavity connected in sequence, and the bottom shape of the first cavity and the bottom shape of the second cavity are both V-shaped; A tracheotomy tube joint, wherein a first end of the tracheotomy tube joint is connected to the third cavity, and a second end of the tracheotomy tube joint is connected to the tracheotomy tube; A humidifying filter screen, one side of which is in communication with the cavity, and the other side of which is in communication with the outside, and a plurality of humidifying filters are respectively located in the first cavity and the second cavity; A sputum drainage tube is communicated with the cavity and is located at the bottom of the cavity.

2. The protective cover according to claim 1, characterized in that: The sputum drainage tube includes a first drainage tube and a second drainage tube, the first drainage tube is connected to the first cavity, and the sputum drainage tube is located at the lowest point of the bottom of the first cavity, the second drainage tube is connected to the second cavity, and the sputum drainage tube is located at the lowest point of the bottom of the second cavity.

3. The protective cover according to claim 2, characterized in that: The sputum drainage tube is provided with a drainage tube clamp and a tube plug.

4. The protective cover according to claim 1, characterized in that: It also includes an oxygen inhalation pipeline, which is arranged on the cover body, the first end of which is connected to the tracheotomy tube joint, the port of the first end of the oxygen inhalation pipeline is an oblique port, and the second end of the oxygen inhalation pipeline is provided with a pipe plug.

5. The protective cover according to claim 1, characterized in that: It also includes a sputum suction pipeline, which is arranged on the cover body, one end of the sputum suction pipeline is connected to the tracheotomy tube joint, and the other end of the sputum suction pipeline is provided with a pipe plug.

6. The protective cover according to claim 1, characterized in that: It also includes a fixing belt, which is arranged on the mask body and is used to fix the mask body on the patient's neck.

7. The protective cover according to claim 1, characterized in that: The first end of the tracheotomy tube connector is connected to the first side of the third cavity, the first side of the third cavity corresponds to the second side of the third cavity, and the second side of the third cavity is an arcuate side concave toward the tracheotomy tube connector.

8. The protective cover according to claim 1, characterized in that: One end of the third cavity is connected to the first cavity through a first pipe, and the other end of the third cavity is connected to the second cavity through a second pipe.

9. The protective cover according to claim 1, characterized in that: The humidification filter is made of a filter material with air permeability, sterilization and water absorption functions. A humidification liquid is added to the humidification filter, and the humidification liquid contains sterile physiological saline.

10. The protective cover according to claim 1, characterized in that: The cover body is made of transparent material.

Images