Tracheal tube cuff cleaning device

Abstract

The application discloses a tracheal tube inner sleeve cleaning device and relates to the field of medical apparatuses. The application provides a tracheal tube inner sleeve cleaning device which is suitable for cleaning and disinfecting a single tracheal tube inner sleeve and has good cleaning and disinfecting effects. The application relies on a flushing structure to flush the inner wall surface of the tracheal tube inner sleeve, and can flush away sputum scabs attached to the inner wall surface. The water flow movement driven by the impeller structure can clean the inner and outer wall surfaces of the tracheal tube inner sleeve. The heater can heat the water to boiling to disinfect the tracheal tube inner sleeve. Therefore, the application can better clean and disinfect the tracheal tube inner sleeve. The application does not use a brush which is difficult to clean itself, but relies on the flushing structure to flush the inner wall surface of the tracheal tube inner sleeve. The self-cleaning can be realized by the water flow movement driven by the impeller structure, and the self-disinfection can be realized by heating the water to boiling. Therefore, the self-cleaning of the application can be guaranteed, and the tracheal tube inner sleeve can be better cleaned and disinfected completely.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more particularly to a device for cleaning the inner cannula of a tracheal tube. Background Technology

[0002] An endotracheal tube is a medical device inserted through the neck incision after a tracheostomy. Endotracheal tubes come in metal and plastic varieties; metal tubes are suitable for long-term placement. A metal endotracheal tube consists of an outer cannula and an inner cannula. The outer cannula is fixed to the patient's neck and inserted into the airway through the neck incision; it is usually not removed. The inner cannula is inserted into the outer cannula and needs to be removed daily for cleaning and disinfection.

[0003] There are two methods for cleaning and disinfecting the endotracheal tube inner cannula: manual and mechanical. Manual cleaning and disinfection methods include rinsing with water and scrubbing the inner wall with a small brush. Disinfection methods include boiling water disinfection and disinfectant solution disinfection. Boiling water disinfection involves immersing the inner cannula in a container with water, then boiling the water and maintaining the boil for a period of time. However, in hospitals, drinking water is provided by designated hot water supply points, making it inconvenient for patients and their families to boil water. Disinfectant solution disinfection requires a suitable concentration, which is also inconvenient for patients to prepare themselves. Therefore, it is inconvenient and time-consuming for patients or their families to manually disinfect the endotracheal tube inner cannula in the hospital.

[0004] Mechanical cleaning and disinfection involves collecting the inner sheaths of the endotracheal tubes used by patients and sending them to a disinfection department for cleaning and disinfection using large-scale disinfection equipment. However, this method takes longer to collect and disinfect the inner sheaths, and it is not easy to distinguish which inner sheath belongs to which patient. If the inner sheath is not accurately matched with the patient, it may not be possible to install it onto the outer sheath, even if the inner sheaths are the same size, because the inner sheaths are inevitably deformed during use.

[0005] Some patents disclose cleaning devices for the inner cannula of endotracheal tubes, such as patents with application numbers 202121180043.4, 201520265703.7, and 202222191625.3. These patents all disclose cleaning devices for the inner cannula of endotracheal tubes that use mechanically driven brushes for cleaning. The disadvantage is that the brushes become contaminated after each cleaning cycle; these patents lack relevant settings for brush cleaning, and if the brushes themselves are not cleaned, the cleaning effect cannot be guaranteed for subsequent cleanings; furthermore, the brushes themselves are not easily cleaned automatically by mechanical means. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a tracheal tube inner cannula cleaning device that is suitable for cleaning and disinfecting a single tracheal tube inner cannula and has a good cleaning and disinfection effect.

[0007] The technical solution adopted to solve the above problems is: the endotracheal tube inner cannula cleaning device includes a cleaning cup, a rinsing structure, an inner cannula support structure, an inner cannula moving structure, a heater, a pulsator structure, a water inlet pipe and a drain pipe; The rinsing structure includes a water tank, a water pump, and a rinsing pipe. The water tank is located outside the cleaning cup, and its upper part is connected to the upper part of the cleaning cup. The water pump is located outside the cleaning cup, and its inlet is connected to the bottom of the water tank through an inlet pipe. The rinsing pipe includes a rinsing connecting pipe and a rinsing main pipe. The rinsing connecting pipe is connected to the outlet of the water pump and extends into the cleaning cup. A first valve is installed on the rinsing connecting pipe. The rinsing main pipe is located inside the cleaning cup, and one end of the rinsing main pipe is connected to the rinsing connecting pipe. The rinsing main pipe is an arc shape extending from bottom to top, and multiple positions along its length can spray rinsing water in multiple directions. The inner sleeve moving structure includes a push rod and a push drive structure. The push rod is located below the lower end of the flushing main pipe, and the push drive structure can drive the push rod to move horizontally. The inner sleeve support structure is correspondingly set with the flushing main pipe. During cleaning, the inner sleeve of the endotracheal tube is placed outside the main flushing pipe. The lower end of the inner sleeve rests against the push rod. The inner sleeve support structure supports the inner sleeve of the endotracheal tube so that there is a distance between its inner wall and the main flushing pipe. The heater heats the water in the cleaning cup, and the impeller agitates the water. The inlet pipe is connected to the upper end of the water tank and has a second valve. The drain pipe is connected to the lower end of the cleaning cup and has a third valve.

[0008] Furthermore, the main flushing pipe has multiple sets of water outlet slits spaced apart along the length of the flushing pipe. Each set of water outlet slits includes two water outlet slits. The two water outlet slits in the same set are symmetrically arranged. The water outlet slits are arranged along the circumference of the main flushing pipe and the central angle is not less than °. The water outlet slits in adjacent sets are staggered.

[0009] Furthermore, the inner sleeve support structure includes a guide sleeve, a vertical rod, a horizontal rod, a support structure spring, a lower support plate, an upper support plate, a hinge plate, and an upper push rod; the guide sleeve is vertically arranged and connected to the cleaning cup; the vertical rod passes through the guide sleeve and cooperates with the guide sleeve, and the vertical rod has an upper flange located above the guide sleeve and a lower flange located below the guide sleeve; the support structure spring is sleeved on the vertical rod, and the upper and lower ends of the support structure spring abut against the guide sleeve and the upper flange respectively, and the support structure spring pushes the vertical rod to make the lower flange abut against the guide sleeve; A horizontal bar is set horizontally and connected to a vertical bar; a lower support plate is located below the lower part of the flushing main pipe, and the lower support plate has a first V-shaped support groove; a hinge plate is connected to the cleaning cup; an upper support plate is hinged to the hinge plate and set downwards, and the upper support plate has a second V-shaped support groove; an upper top rod is connected to the vertical bar and supports the upper support plate; the first V-shaped support groove and the second V-shaped support groove are used to support the inner sleeve of the endotracheal tube.

[0010] Furthermore, the inner tube support structure includes a positioning plate, which is vertically positioned between the upper and lower support plates and connected to the crossbar. The positioning plate has a vertical positioning groove. When the endotracheal tube inner tube is cleaned, it is located in the positioning groove, and the positioning groove restricts the swing of the endotracheal tube inner tube.

[0011] Furthermore, the length of the guide sleeve is adjustable, which allows the height of the vertical rod to be adjusted.

[0012] Furthermore, the guide sleeve includes an inner guide sleeve and an outer guide sleeve. The inner guide sleeve is connected to the cleaning cup, the vertical rod is engaged with the inner guide sleeve, the outer guide sleeve is fitted onto the inner guide sleeve and threadedly connected to the inner guide sleeve, and the lower flange abuts against the outer guide sleeve.

[0013] Furthermore, the cleaning cup includes an inner liner, an outer shell, and insulation material. The inner liner is located inside the outer shell and is separated from it. The heater and insulation material are both located between the inner liner and the outer shell. The heater is used to heat the inner liner.

[0014] Furthermore, the push drive structure includes a push drive rod, a push drive motor, a push drive wheel, and a push structure spring; the push drive rod passes through the cleaning cup and engages with it, and is connected to the push rod; the push drive wheel is a cam, and is correspondingly positioned with the push drive rod, and is connected to the push drive motor; the push structure spring is sleeved on the push drive rod, and pushes the push drive rod from the outside, causing the push drive rod to abut against the push drive wheel.

[0015] Furthermore, the impeller structure includes an impeller motor, an impeller, and an impeller shaft. The impeller motor is located below the cleaning cup, the impeller is located inside the cleaning cup, and the impeller shaft is mounted on the cleaning cup. The impeller shaft is connected to the impeller motor and the impeller.

[0016] Furthermore, the endotracheal tube inner cannula cleaning device includes a cup lid that covers the cleaning cup and has air holes.

[0017] The beneficial effects of this invention are: it can be fixed in a location with water supply in a hospital or patient's home, such as in the washroom of a hospital ward. A flexible hose connects the water inlet pipe to the faucet; another flexible hose connects to the drain pipe, extending to the drain outlet.

[0018] When using, such as Figure 1 As shown, place the inner cannula of the endotracheal tube onto the main flushing pipe, with the lower end of the inner cannula resting against the push rod. The inner cannula support structure supports the inner cannula, ensuring a distance between its inner wall and the main flushing pipe, keeping the inner cannula in a roughly upright position. Then, the cleaning and disinfection of the inner cannula can begin.

[0019] This invention utilizes a flushing structure to rinse the inner wall of the endotracheal tube inner cannula, removing any attached sputum crusts. A pulsator structure drives water flow to clean both the inner and outer walls of the endotracheal tube inner cannula. A heater boils the water to disinfect the endotracheal tube inner cannula. Therefore, this invention effectively cleans and disinfects the endotracheal tube inner cannula.

[0020] This invention does not use a brush or other structure that is difficult to clean itself. Instead, it relies on a rinsing structure to rinse the inner wall of the endotracheal tube inner sleeve. The cleaning of this invention can be achieved by a pulsator structure driving water flow, and self-disinfection can be achieved by heating water to boiling. Therefore, the cleaning of this invention can be guaranteed, which is conducive to more thorough cleaning and disinfection of the endotracheal tube inner sleeve. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the endotracheal tube inner cannula cleaning device; Figure 2 This is a structural diagram of the flushing pipe; Figure 3 This is a magnified view of a section of the flushing main pipe; Figure 4 yes Figure 3 AA section view; Figure 5 yes Figure 3 BB section view; Figure 6 This is a diagram of the inner sleeve support structure; Figure 7 This is a structural diagram of the hinge plate and upper support plate; Figure 8 This is a structural diagram of the lower support plate; Figure 9 This is a diagram of the positioning plate structure; Figure 10 This is a diagram of the inner sleeve's moving structure; Figure 11 This is a diagram of the impeller structure; The components in the diagram are labeled as follows: 1. Cleaning cup; 1-1. Inner liner; 1-2. Outer shell; 1-3. Insulation material; 1-4. Connecting hole; 2. Flushing structure; 2. Water tank; 2-1. Water pump; 2-2. Flushing pipe; 2-3-1. Flushing connecting pipe; 2-3-2. Main flushing pipe; 2-3-3. Water outlet gap; 2-4. Inlet pipe; 2-5. First valve; 3. Inner sleeve support structure; 3. Guide sleeve; 3-1. Inner guide sleeve; 3-1-1. Outer guide sleeve; 3-1-2. Vertical rod; 3-2-1. Lower flange; 3-2-2. Upper flange; 3-2-2. Horizontal rod; 3-3. Lower support plate; 3-4. First V-shaped support groove; 3-4-1. Positioning plate 3-5, positioning groove 3-5-1, hinge plate 3-6, upper support plate 3-7, second V-shaped support groove 3-7-1, upper push rod 3-8, support structure spring 3-9, inner sleeve moving structure 4, push rod 4-1, push drive rod 4-2, push structure spring 4-3, push drive wheel 4-4, push drive motor 4-5, heater 5, impeller structure 6, impeller 6-1, impeller motor 6-2, impeller shaft 6-3, water inlet pipe 7, second valve 7-1, drain pipe 8, third valve 8-1, cup lid 9, air hole 9-1, air hole cover 9-2, air pipe inner sleeve 10. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1As shown, the endotracheal tube inner cannula cleaning device includes a cleaning cup 1, a flushing structure 2, an inner cannula support structure 3, an inner cannula moving structure 4, a heater 5, a pulsator structure 6, a water inlet pipe 7, and a drain pipe 8; the flushing structure 2 includes a water tank 2-1, a water pump 2-2, and a flushing pipe 2-3; the water tank 2-1 is located outside the cleaning cup 1, and the upper part of the water tank 2-1 is connected to the upper part of the cleaning cup 1; the water pump 2-2 is located outside the cleaning cup 1, and the inlet of the water pump 2-2 is connected to the inlet pipe 2-4. The flushing pipe 2-3 is connected to the bottom of the water tank 2-1; the flushing pipe 2-3 includes a flushing connecting pipe 2-3-1 and a flushing main pipe 2-3-2. The flushing connecting pipe 2-3-1 is connected to the output port of the water pump 2-2 and extends into the cleaning cup 1. A first valve 2-5 is provided on the flushing connecting pipe 2-3-1. The flushing main pipe 2-3-2 is located inside the cleaning cup 1. One end of the flushing main pipe 2-3-2 is connected to the flushing connecting pipe 2-3-1. The shape of the flushing main pipe 2-3-2 is from bottom to top. The extended arc shape allows for multi-directional spraying of rinsing water from multiple positions along the length of the main rinsing pipe 2-3-2; the inner sleeve moving structure 4 includes a push rod 4-1 and a push drive structure. The push rod 4-1 is positioned below the lower end of the main rinsing pipe 2-3-2, and the push drive structure can drive the push rod 4-1 to move horizontally; the inner sleeve support structure 3 is correspondingly positioned to the main rinsing pipe 2-3-2; the tracheal tube inner sleeve 10 is sleeved over the main rinsing pipe 2-3-2 during cleaning, with the lower end of the tracheal tube inner sleeve 10 abutting against the push rod 4-1, and the inner sleeve support structure 3 supports the tracheal tube inner sleeve 10 to maintain a distance between its inner wall and the main rinsing pipe 2-3-2; the heater 5 heats the water in the cleaning cup 1, and the impeller structure 6 agitates the water in the cleaning cup 1; the water inlet pipe 7 is connected to the upper end of the water tank 2-1, and a second valve 7-1 is installed on the water inlet pipe 7; the drain pipe 8 is connected to the lower end of the cleaning cup 1, and a third valve 8-1 is installed on the drain pipe 8. The upper part of the water tank 2-1 can be provided with a connecting hole 1-4 for connecting with the cleaning cup 1.

[0024] This invention can be fixed in a location with water supply in a hospital or patient's home, such as in the washroom of a hospital ward. A flexible hose connects the inlet pipe 7 to a faucet; another flexible hose connects to the drain pipe 8, which extends to the drain.

[0025] When using, such as Figure 1 As shown, the endotracheal tube inner cannula 10 is fitted onto the main flushing pipe 2-3-2, with the lower end of the inner cannula 10 resting against the push rod 4-1. The inner cannula support structure 3 supports the inner cannula 10, ensuring a distance between its inner wall and the main flushing pipe 2-3-2, keeping the inner cannula 10 in a roughly upright position. Then, the cleaning and disinfection of the inner cannula 10 can begin.

[0026] The specific steps for cleaning and disinfecting the endotracheal tube inner cannula (10) are as follows: A. Open the second valve 7-1 and add water to the water tank 2-1. When the water level reaches the connecting hole 1-4, water enters the cleaning cup 1 from the water tank. Stop adding water when the water level in the cleaning cup 1 is higher than the upper end of the endotracheal tube inner sleeve 10. Soak the endotracheal tube inner sleeve 10 for a period of time to soften the sputum crusts and also to dissolve some contaminants into the water. Then drain the water.

[0027] B. Water pump 2-2 is turned on, drawing water from water tank 2-1 and spraying it at high speed from flushing main pipe 2-3-2. The water flow washes the inner wall of the endotracheal tube inner sleeve 10, removing sputum crusts. During this process, push rod 4-1 reciprocates, pushing the endotracheal tube inner sleeve 10 upward slightly, and then the inner sleeve 10 moves downward under its own weight. This process is repeated to ensure that all parts of the inner wall of the endotracheal tube inner sleeve 10 are flushed, ensuring that the inner wall surface of the endotracheal tube inner sleeve 10 is clean. During the flushing process, third valve 8-1 is opened, and drain pipe 8 drains water.

[0028] C. Following step A, add water to the cleaning cup 1 again. Once sufficient water is added, the impeller structure 6 will open to clean the inner sleeve 10 of the endotracheal tube again, cleaning both the inner and outer surfaces of the inner sleeve 10. After cleaning, drain the water. During this process, the inner sleeve moving structure 4 can also be activated.

[0029] D. Following step A, add water to the cleaning cup 1 again. Once sufficient water is added, the heater 5 will heat the water in the cleaning cup 1 to boiling, thus disinfecting the inner sleeve 10 of the endotracheal tube. During this process, the inner sleeve moving structure 4 can also be activated. Then drain the water. After draining, the water pump 2-2 can be turned on again to drain the remaining water in the water tank 2-1. This completes the cleaning and disinfection of the inner sleeve 10 of the endotracheal tube.

[0030] Steps B, C, and D above should be performed automatically. Therefore, this invention should also include an electrical control device, as shown in the figure, to control the sequential operation of each electric component. The shape of the endotracheal tube inner sleeve 10 is approximately a quarter-circular arc, therefore the shape of the flushing main pipe 2-3-2 is also a quarter-circular arc. The shape of the flushing main pipe 2-3-2 is an arc extending from bottom to top. The lower end of the endotracheal tube inner sleeve 10 abuts against the push rod 4-1, the purpose of which is to keep the endotracheal tube inner sleeve 10 basically vertical after it is fitted, so that the flushing water inside the endotracheal tube inner sleeve 10 can be automatically and completely discharged. The flushing main pipe 2-3-2 cannot spray water continuously along its entire length, therefore, an inner sleeve moving structure 4 is required to ensure that all parts of the inner wall of the endotracheal tube inner sleeve 10 are flushed. The water pressure of the water pump 2-2 should be sufficient to ensure the flushing effect.

[0031] The preferred structure of the flushing main pipe 2-3-2 is as follows: Figures 2 to 5As shown, the flushing main pipe 2-3-2 has multiple sets of water outlet slits 2-3-3 spaced apart along the length of the flushing pipe 2-3. Each set of water outlet slits 2-3-3 includes two water outlet slits 2-3-3, which are symmetrically arranged. The water outlet slits 2-3-3 are arranged circumferentially along the flushing main pipe 2-3-2 with a central angle of not less than 90°. The water outlet slits 2-3-3 in adjacent sets are staggered. The staggered angle of the water outlet slits 2-3-3 in adjacent sets is preferably 90°. The above arrangement of the flushing main pipe 2-3-2, in conjunction with the axial movement of the endotracheal tube inner sleeve 10, ensures that the entire inner surface of the endotracheal tube inner sleeve 10 is flushed.

[0032] The inner sleeve support structure 3 is used to support the inner sleeve 10 of the endotracheal tube so that there is a distance between its inner wall and the flushing main pipe 2-3-2. The contact area between the inner sleeve support structure 3 and the inner sleeve 10 of the endotracheal tube should be as small as possible so that the outer surface of the inner sleeve 10 of the endotracheal tube can be cleaned. The axial movement of the inner sleeve 10 of the endotracheal tube also allows the contact point with the inner sleeve support structure 3 to be removed for cleaning and disinfection.

[0033] The preferred structure of the inner sleeve support structure 3 is as follows: Figures 6 to 8 As shown, the inner sleeve support structure 3 includes a guide sleeve 3-1, a vertical rod 3-2, a horizontal rod 3-3, a support structure spring 3-9, a lower support plate 3-4, an upper support plate 3-7, a hinge plate 3-6, and an upper push rod 3-8. The guide sleeve 3-1 is vertically arranged and connected to the cleaning cup 1. The vertical rod 3-2 passes through the guide sleeve 3-1 and cooperates with it. The vertical rod 3-2 has an upper flange 3-2-2 located above the guide sleeve 3-1 and a lower flange 3-2-1 located below the guide sleeve 3-1. The support structure spring 3-9 is sleeved on the vertical rod 3-2, and its upper and lower ends abut against the guide sleeve 3-1 and the upper flange 3-2-2, respectively, providing support. The upper spring 3-9 pushes the vertical rod 3-2 so that the lower flange 3-2-1 abuts against the guide sleeve 3-1; the horizontal rod 3-3 is horizontally set and connected to the vertical rod 3-2; the lower support plate 3-4 is located below the lower part of the flushing main tube 2-3-2, and the lower support plate 3-4 has a first V-shaped support groove 3-4-1; the hinge plate 3-6 is connected to the cleaning cup 1; the upper support plate 3-7 is hinged to the hinge plate 3-6 and is set downwardly, and the upper support plate 3-7 has a second V-shaped support groove 3-7-1; the upper push rod 3-8 is connected to the vertical rod 3-2 and supports the upper support plate 3-7; the first V-shaped support groove 3-4-1 and the second V-shaped support groove 3-7-1 are used to support the inner sleeve 10 of the tracheal tube.

[0034] The upper and lower ends of the endotracheal tube inner cannula 10 are supported by the groove walls of the first V-shaped support groove 3-4-1 and the second V-shaped support groove 3-7-1, respectively. The lower end of the endotracheal tube inner cannula 10 is basically horizontal, so the lower support piece 3-4 supports the endotracheal tube inner cannula 10 upwards. The upper end of the endotracheal tube inner cannula 10 is basically vertical, so the upper support piece 3-7 mainly supports the endotracheal tube inner cannula 10 horizontally.

[0035] If the lower support plate 3-4 and the upper support plate 3-7 are fixed, when the endotracheal tube inner sleeve 10 is fitted onto the flushing tube 2-3, due to its gravity, the position of the endotracheal tube inner sleeve 10 is lower and in contact with the flushing tube 2-3. This will cause the lower end of the endotracheal tube inner sleeve 10 to abut against the upper support plate 3-7 or the lower support plate 3-4, and adjustments will be required to properly fit the endotracheal tube inner sleeve 10.

[0036] By pressing the vertical rod 3-2, the distance between the lower support plate 3-4 and the upper support plate 3-7 and the flushing tube 2-3 is increased. When fitting the endotracheal tube inner sleeve 10 onto the flushing tube 2-3, the vertical rod 3-2 should be pressed first, causing the horizontal rod 3-3, the lower support plate 3-4, and the upper push rod 3-8 to move downwards. The upper support plate 3-7 swings downwards, increasing the distance between the lower support plate 3-4 and the upper support plate 3-7 and the flushing tube 2-3, thus creating sufficient space for the endotracheal tube inner sleeve 10 to be smoothly fitted onto the flushing tube 2-3 with its lower end abutting against the push rod 4-1. Then, the vertical rod 3-2 is released, the lower support plate 3-4 moves upwards to its original position, and the upper push rod 3-8 also returns to its original position, pushing the upper support plate 3-7 back to its original position, thereby supporting the endotracheal tube inner sleeve 10 and creating a distance between its inner wall and the flushing main tube 2-3-2. This makes it easier to fit the endotracheal tube inner sleeve 10.

[0037] After the endotracheal tube inner cannula 10 is installed, its middle part hangs down naturally, with a distance between it and the main flushing tube 2-3-2. Of course, in order to further control the position of the middle part of the endotracheal tube inner cannula 10, the following settings can be made: the inner cannula support structure 3 includes a positioning piece 3-5, which is vertically set between the upper support piece 3-7 and the lower support piece 3-4 and connected to the crossbar 3-3. The positioning piece 3-5 has a vertical positioning groove 3-5-1. When the endotracheal tube inner cannula 10 is cleaned, it is located in the positioning groove 3-5-1, and the positioning groove 3-5-1 restricts the swing of the endotracheal tube inner cannula 10.

[0038] There are various models of endotracheal tube inner sleeve 10, and the inner and outer diameters of different models of endotracheal tube inner sleeve 10 are different. In order to ensure that the inner wall of various models of endotracheal tube inner sleeve 10 can be at a distance from the flushing main tube 2-3-2 when placed on the present invention, it is preferable that the length of the guide sleeve 3-1 is adjustable, so that the height of the vertical rod 3-2 is adjustable.

[0039] like Figure 6As shown, when the length of the guide sleeve 3-1 is increased, the position of the vertical rod 3-2 is lower, and the positions of the lower support piece 3-4 and the upper support piece 3-7 are also lower, which is suitable for larger-sized endotracheal tube inner cannulas 10. Conversely, when the length of the guide sleeve 3-1 is shortened, the position of the vertical rod 3-2 is higher, and the positions of the lower support piece 3-4 and the upper support piece 3-7 are also higher, which is suitable for smaller-sized endotracheal tube inner cannulas 10.

[0040] The guide sleeve 3-1 can be adjusted in the following way: The guide sleeve 3-1 includes an inner guide sleeve 3-1-1 and an outer guide sleeve 3-1-2. The inner guide sleeve 3-1-1 is connected to the cleaning cup 1. The vertical rod 3-2 is fitted with the inner guide sleeve 3-1-1. The outer guide sleeve 3-1-2 is fitted onto the inner guide sleeve 3-1-1 and threadedly connected to it. The lower flange 3-2-1 abuts against the outer guide sleeve 3-1-2. The height of the guide sleeve 3-1 can be adjusted by rotating the outer guide sleeve 3-1-2.

[0041] The preferred structure of the cleaning cup 1 is as follows: The cleaning cup 1 includes an inner cup liner 1-1, an outer cup shell 1-2, and a heat insulation material 1-3. The inner cup liner 1-1 is disposed inside the outer cup shell 1-2 and is separated from the outer cup shell 1-2. The heater 5 and the heat insulation material 1-3 are both located between the inner cup liner 1-1 and the outer cup shell 1-2. The heater 5 is used to heat the inner cup liner 1-1.

[0042] The specific structure of the push-drive structure can be as follows: Figure 10 As shown, the pushing drive structure includes a pushing drive rod 4-2, a pushing drive motor 4-5, a pushing drive wheel 4-4, and a pushing structure spring 4-3. The pushing drive rod 4-2 passes through and engages with the cleaning cup 1, and is connected to the pushing rod 4-1. The pushing drive wheel 4-4 is a cam, corresponding to the pushing drive rod 4-2, and the pushing drive motor 4-5 is connected to the pushing drive wheel 4-4. The pushing structure spring 4-3 is fitted onto the pushing drive rod 4-2, and pushes the pushing drive rod 4-2 against the pushing drive wheel 4-4. A sealing ring should be provided between the pushing drive rod 4-2 and the cleaning cup 1.

[0043] The push drive motor 4-5 drives the push drive wheel 4-4 to rotate. The push drive wheel 4-4 is a cam. The rotation of the drive wheel 4-4, in conjunction with the action of the push structure spring 4-3, can make the push drive rod 4-2 reciprocate, which in turn drives the push rod 4-1 to reciprocate, thereby realizing the reciprocating motion of the endotracheal tube inner cannula 10.

[0044] The specific structure of impeller structure 6 is as follows: Figure 11As shown, the impeller structure 6 includes an impeller motor 6-2, an impeller 6-1, and an impeller shaft 6-3. The impeller motor 6-2 is positioned below the cleaning cup 1, the impeller 6-1 is positioned inside the cleaning cup 1, and the impeller shaft 6-3 is mounted on the cleaning cup 1. The impeller shaft 6-3 is connected to the impeller motor 6-2 and the impeller 6-1. A sealing ring should be provided between the impeller shaft 6-3 and the cleaning cup 1.

[0045] To ensure the cleanliness of the inside of the cleaning cup 1, the preferred endotracheal tube inner sleeve cleaning device includes a cup lid 9, which covers the cleaning cup 1 and has an air hole 9-1. The cup lid 9 can be opened when inserting and removing the endotracheal tube inner sleeve 10. At other times, the cup lid 9 should be closed to ensure the cleanliness of the inside of the cleaning cup 1. The air hole 9-1 is used to release air when the water in the cleaning cup 1 boils. Alternatively, an air hole cover 9-2 can be provided to cover the air hole 9-1; the air hole cover 9-2 should be movable so that water vapor can open it.

Claims

1. A device for cleaning the inner cannula of an endotracheal tube, characterized in that: It includes a cleaning cup (1), a rinsing structure (2), an inner sleeve support structure (3), an inner sleeve moving structure (4), a heater (5), a pulsator structure (6), a water inlet pipe (7), and a drain pipe (8). The rinsing structure (2) includes a water tank (2-1), a water pump (2-2), and a rinsing pipe (2-3); the water tank (2-1) is located outside the cleaning cup (1), and the upper part of the water tank (2-1) is connected to the upper part of the cleaning cup (1); the water pump (2-2) is located outside the cleaning cup (1), and the inlet of the water pump (2-2) is connected to the bottom of the water tank (2-1) through an inlet pipe (2-4); the rinsing pipe (2-3) includes a rinsing connecting pipe (2-3-1) and a rinsing main pipe (2-3-2), the rinsing connecting pipe (2-3-1) is connected to the output port of the water pump (2-2) and extends into the cleaning cup (1). A first valve (2-5) is provided on the flushing connecting pipe (2-3-1). The flushing main pipe (2-3-2) is located inside the cleaning cup (1). One end of the flushing main pipe (2-3-2) is connected to the flushing connecting pipe (2-3-1). The shape of the flushing main pipe (2-3-2) is an arc extending from bottom to top. Multiple positions along the length of the flushing main pipe (2-3-2) can spray flushing water in multiple directions. The inner sleeve moving structure (4) includes a push rod (4-1) and a push drive structure. The push rod (4-1) is located below the lower end of the flushing main pipe (2-3-2). The push drive structure can drive the push rod (4-1) to move horizontally. The inner sleeve support structure (3) is correspondingly provided with the flushing main pipe (2-3-2). When cleaning, the inner sleeve (10) of the endotracheal tube is sleeved outside the main flushing tube (2-3-2). The lower end of the inner sleeve (10) of the endotracheal tube abuts against the push rod (4-1). The inner sleeve support structure (3) supports the inner sleeve (10) of the endotracheal tube so that there is a distance between its inner wall and the main flushing tube (2-3-2). The heater (5) can heat the water in the cleaning cup (1), and the impeller structure (6) can agitate the water in the cleaning cup (1); the water inlet pipe (7) is connected to the upper end of the water tank (2-1), and a second valve (7-1) is provided on the water inlet pipe (7); the drain pipe (8) is connected to the lower end of the cleaning cup (1), and a third valve (8-1) is provided on the drain pipe (8). The inner sleeve support structure (3) includes a guide sleeve (3-1), a vertical rod (3-2), a horizontal rod (3-3), a support structure spring (3-9), a lower support plate (3-4), an upper support plate (3-7), a hinge plate (3-6), and an upper push rod (3-8); the guide sleeve (3-1) is vertically arranged and connected to the cleaning cup (1); the vertical rod (3-2) passes through the guide sleeve (3-1) and cooperates with the guide sleeve (3-1), and the vertical rod (3-2) has a guide sleeve (3-1) located on the guide sleeve (3-2). The upper flange (3-2-2) is located above the sleeve (3-1) and the lower flange (3-2-1) is located below the guide sleeve (3-1); the support structure spring (3-9) is sleeved on the vertical rod (3-2), and the upper and lower ends of the support structure spring (3-9) abut against the guide sleeve (3-1) and the upper flange (3-2-2) respectively. The support structure spring (3-9) pushes the vertical rod (3-2) so that the lower flange (3-2-1) abuts against the guide sleeve (3-1); A horizontal bar (3-3) is set horizontally and connected to a vertical bar (3-2); a lower support plate (3-4) is located below the lower part of the flushing main pipe (2-3-2), and the lower support plate (3-4) has a first V-shaped support groove (3-4-1); a hinge plate (3-6) is connected to a cleaning cup (1); an upper support plate (3-7) is hinged to the hinge plate (3-6) and set downwards, and the upper support plate (3-7) has a second V-shaped support groove (3-7-1); an upper top rod (3-8) is connected to a vertical bar (3-2) and supports the upper support plate (3-7); the first V-shaped support groove (3-4-1) and the second V-shaped support groove (3-7-1) are used to support the inner sleeve of the endotracheal tube (10).

2. The endotracheal tube inner cannula cleaning device according to claim 1, characterized in that: The flushing main pipe (2-3-2) has multiple sets of water outlet gaps (2-3-3) spaced apart along the length of the flushing pipe (2-3). Each set of water outlet gaps (2-3-3) includes two water outlet gaps (2-3-3). The two water outlet gaps (2-3-3) in the same set are symmetrically arranged. The water outlet gaps (2-3-3) are arranged circumferentially along the flushing main pipe (2-3-2) and the central angle is not less than 90°. The water outlet gaps (2-3-3) in adjacent sets are staggered.

3. The endotracheal tube inner cannula cleaning device according to claim 1, characterized in that: The inner tube support structure (3) includes a positioning piece (3-5), which is vertically positioned between the upper support piece (3-7) and the lower support piece (3-4) and connected to the crossbar (3-3). The positioning piece (3-5) has a vertical positioning groove (3-5-1). When the endotracheal tube inner tube (10) is cleaned, it is located in the positioning groove (3-5-1), and the positioning groove (3-5-1) restricts the swing of the endotracheal tube inner tube (10).

4. The endotracheal tube inner cannula cleaning device according to claim 3, characterized in that: The length of the guide sleeve (3-1) is adjustable, which makes the height of the vertical rod (3-2) adjustable.

5. The endotracheal tube inner cannula cleaning device according to claim 4, characterized in that: The guide sleeve (3-1) includes an inner guide sleeve (3-1-1) and an outer guide sleeve (3-1-2). The inner guide sleeve (3-1-1) is connected to the cleaning cup (1). The vertical rod (3-2) is engaged with the inner guide sleeve (3-1-1). The outer guide sleeve (3-1-2) is fitted onto the inner guide sleeve (3-1-1) and threadedly connected to the inner guide sleeve (3-1-1). The lower flange (3-2-1) abuts against the outer guide sleeve (3-1-2).

6. The endotracheal tube inner cannula cleaning device according to claim 1, characterized in that: The cleaning cup (1) includes a cup liner (1-1), a cup shell (1-2), and a heat insulation material (1-3). The cup liner (1-1) is located inside the cup shell (1-2) and is separated from the cup shell (1-2). The heater (5) and the heat insulation material (1-3) are both located between the cup liner (1-1) and the cup shell (1-2). The heater (5) is used to heat the cup liner (1-1).

7. The endotracheal tube inner cannula cleaning device according to claim 1, characterized in that: The push drive structure includes a push drive rod (4-2), a push drive motor (4-5), a push drive wheel (4-4), and a push structure spring (4-3). The push drive rod (4-2) passes through the cleaning cup (1) and cooperates with the cleaning cup (1). The push drive rod (4-2) is connected to the push rod (4-1). The push drive wheel (4-4) is a cam. The push drive wheel (4-4) is set correspondingly to the push drive rod (4-2). The push drive motor (4-5) is connected to the push drive wheel (4-4). The push structure spring (4-3) is sleeved on the push drive rod (4-2). The push structure spring (4-3) pushes the push drive rod (4-2) so that the push drive rod (4-2) abuts against the push drive wheel (4-4).

8. The endotracheal tube inner cannula cleaning device according to claim 1, characterized in that: The impeller structure (6) includes an impeller motor (6-2), an impeller (6-1), and an impeller shaft (6-3). The impeller motor (6-2) is located below the cleaning cup (1), the impeller (6-1) is located inside the cleaning cup (1), and the impeller shaft (6-3) is mounted on the cleaning cup (1). The impeller shaft (6-3) is connected to the impeller motor (6-2) and the impeller (6-1).

9. The endotracheal tube inner cannula cleaning device according to any one of claims 1 to 8, characterized in that: Includes a cup lid (9), which covers the cleaning cup (1) and has vent holes (9-1).

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