CN219539165U - Protective plugging device for tracheotomy intubation tube orifice - Google Patents

Abstract

The embodiment of the utility model discloses a protective plugging device for a tracheotomy cannula orifice, which comprises a protective assembly (100). One end of a protective tube body (101) of the protective assembly can be sleeved at the mouth of the tracheotomy cannula, and the other end of the protective tube body is detachably fixed with a cover core (102) with a three-layer structure. The cover core includes an absorbent layer, a filter layer, and a water blocking layer. When the protective tube is used, the absorption layer is closest to the end part of the protective tube body, so that moisture in expiration of a patient can be partially reserved, and the protective tube is taken into the air tube again when the patient inhales next time, so that a moisturizing effect is achieved. The filter layer is positioned in the middle to play a role in filtration. The water-resisting layer is far away from the end of the protection part and is in direct contact with the outside air, and when in suction, the water-resisting layer can block foreign matters, particles, dust and the like. Therefore, the protective plugging device of the embodiment of the utility model prevents foreign matters, dust and bacteria particles from invading, keeps warm and moisture and prevents infection.

Description

Protective plugging device for tracheotomy intubation tube orifice

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a protective plugging device for a tracheotomy intubation tube orifice.

Background

For patients with dyspnea, such as respiratory obstruction or ventilation disorders, tracheotomy is required to ensure effective ventilation of their respiratory tract. After tracheotomy, the orifice of the trachea cannula is directly communicated with the outside during non-mechanical ventilation, so that the normal airway defense function is destroyed, and the patient is easy to dry sputum and scab, thereby causing the problems of pulmonary infection and the like. In order to prevent dust, filter and moisten the inhaled air, a disposable laryngeal mask, an artificial nose protective tracheal tube or a closed sputum aspirator is usually used at the mouth of a tracheostomy tube. However, in practical work, the above care methods have certain drawbacks. In particular, the disposable laryngeal mask is directly communicated with the outside, has no dustproof and filtering functions, is opaque, and is inconvenient for observing the illness state of a patient. The artificial nose does not provide extra heat and moisture, the humidification effect of the patient with dehydration, low temperature and more pulmonary disease secretion is not ideal, humidification is insufficient, the wet gauze is used for covering the tracheal cannula opening, the tracheal incision is easy to fall off to pollute the tracheal incision, and the wet gauze is easy to cause further infection of the skin around the tracheal incision. For the use of the airtight sputum aspirator, although the open airway can be airtight, the infection of a carer is reduced, and a certain heat preservation function is also achieved, however, clinical findings that the sleeve pipe has a sputum scab plugging orifice so that the pulmonary infection is still not easy to control are that the airtight sputum aspirator is an airtight device, and the device is changed every three days, so that nurses find out orifice sputum scab, and part of sputum scab is brought into the airway when sputum aspiration is caused, the airway is repeatedly blocked and infected, and the artificial airway cannot be pulled out.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the protective plugging device for the mouth of the tracheotomy intubation tube, which can prevent foreign matters, dust and bacteria particles from invading, keep warm and moisture and prevent infection.

In order to solve the technical problems, the embodiment of the utility model adopts the following technical scheme: a protective plugging device for a tracheostomy tube orifice, comprising a protective assembly; the protective component comprises a protective pipe body and a cover core; the cover core comprises a water-resistant layer, a filter layer and an absorption layer; one end of the protective tube body can be fixed with the mouth of the tracheotomy intubation tube; the cover core is detachably fixed at the other end of the protective pipe body; the water blocking layer, the filter layer and the absorption layer are sequentially stacked; when the cover core is fixed on the protection pipe body, the absorption layer is close to the protection pipe body, and the water blocking layer is far away from the protection pipe body.

In some embodiments, the guard assembly further comprises a grille; the grille can be fixed on the protective tube body.

In some embodiments, the protective component comprises an adhesive tape; the adhesive tape is arranged on the cover core, so that the cover core can be adhered and fixed on the protective pipe body.

In some embodiments, the protective occlusion device of embodiments of the present utility model further comprises an occlusion assembly; the plugging assembly comprises a plugging pipe body and a plugging cover; one end of the plugging tube body can be fixed with the protective tube body, and the other end of the plugging tube body is connected with the plugging cover; the occlusion cap is rotatably secured to the occlusion tube such that the occlusion cap can cover the occlusion tube and the coverage area of the occlusion cap is adjustable such that the ventilation cross-sectional area of the occlusion tube is adjustable; when the plugging pipe body is fixed with the protection pipe body, the cover core is positioned between the plugging pipe body and the protection pipe body.

In some embodiments, the occlusion assembly further comprises a positioning kit; the positioning sleeve comprises a first positioning sleeve hole, a second positioning sleeve hole and a bolt; the bolt comprises a plug rod and an end plate; the first positioning sleeve and the second positioning sleeve are respectively arranged on the plugging cover and the plugging pipe body; the two end plates are respectively arranged at two ends of the inserting connection rod; the inner diameter of the first positioning sleeve hole is D1; the diameter of the end plate is D2; the inner diameter of the second positioning sleeve hole is D3; d3 More than or equal to D2 is more than D1; when the plugging cover rotates to the corresponding position, the bolt can pass through the first locating sleeve hole and the second locating sleeve hole, so that the relative position of the plugging cover and the plugging pipe body is determined, and the coverage area of the plugging cover is determined.

In some embodiments, the occlusion assembly further comprises a positioning kit; the positioning sleeve comprises a rotary bayonet lock and a clamping position; the rotary bayonet lock and the bayonet lock are respectively arranged on the plugging pipe body and the plugging cover; when the plugging cover rotates to a corresponding position, the rotary bayonet lock can be clamped into the clamping position, so that the relative position of the plugging cover and the plugging pipe body is determined, and the coverage area of the plugging cover is determined.

In some embodiments, the closure cap includes a rotating shaft and a rubber sleeve; the plugging pipe body comprises a rotary hole; the rotary shaft can be inserted into the rotary hole, so that the plugging cover can rotate relative to the plugging pipe body; the rubber sleeve can be sleeved on the rotating shaft; when the rotating shaft is inserted into the rotating hole, the rubber sleeve is positioned between the rotating shaft and the inner wall of the rotating hole, and the rubber sleeve is in a pressed state.

In some embodiments, the protective plugging device of the embodiments of the present utility model further comprises a snap structure; the protection pipe body is fixedly connected with the plugging pipe body through the clamping buckle structure.

In some embodiments, the closure cap includes a rotating gear; the rotary gear comprises meshing teeth; the plugging pipe body comprises a rotary hole, a fixed rod and a rubber pawl; the rotary hole is arranged on the plugging pipe body; the fixed rod is fixedly arranged at the bottom of the rotary hole; the rubber pawl is fixed on the inner wall of the rotary hole; the rotary gear can pass through the fixed rod; the rubber pawl can be clamped between adjacent meshing teeth; the rubber pawl may be in contact with the engagement teeth when the rubber pawl is located between adjacent engagement teeth.

In some embodiments, the engagement teeth are arcuate teeth; the rubber pawl is an arc pawl; when the rubber pawl is positioned between the adjacent meshing teeth, the bending directions of the rubber pawl and the meshing teeth are opposite.

Compared with the prior art, the protective plugging device for the mouth of the tracheotomy cannula comprises a protective tube body which can be fixed on the mouth of the tracheotomy cannula, and a three-layer-structure cover core is further arranged on the protective tube body, wherein the innermost layer can absorb moisture, the middle layer can filter impurities, and the outermost layer can prevent foreign matters and prevent dust. When the protective tube body is matched with the cover core, the moisture of patient expiration can be partially reserved in the cover core, the reserved moisture can moisten air sucked next time, and meanwhile, the sucked impurities, air particulate foreign matters and the like can be filtered out, so that the infection probability is reduced.

Drawings

Fig. 1 is a schematic structural view of a protective occlusion device according to an embodiment of the present utility model.

Fig. 2 is an exploded view of an embodiment of a protective occluding device according to an embodiment of the present utility model.

Fig. 3 is a schematic structural view of an embodiment of the occluding component of the protective occluding device of an embodiment of the present utility model.

Fig. 4 is a schematic representation of the relative positional change of one embodiment of the occlusion cap and occlusion tube body of the occlusion assembly of the present utility model.

Fig. 5 is a schematic structural view of an embodiment of the occluding component of the protective occluding device of an embodiment of the present utility model.

Fig. 6 is a partial enlarged view at a of fig. 5.

Fig. 7 is a schematic cross-sectional view of the closure assembly of fig. 5.

Fig. 8 is a schematic structural view of an embodiment of the occluding component of the protective occluding device of an embodiment of the present utility model.

Fig. 9 is a partial enlarged view at B of fig. 8.

The reference numerals are as follows:

100-protecting components, 101-protecting pipe bodies, 102-cover cores and 103-grids;

200-plugging components, 201-plugging tube bodies, 2011-rotating holes, 2012-fixing rods, 2013-rubber pawls, 202-plugging covers, 2021-rotating shafts, 2022-rubber sleeves, 2023-rotating gears, 203-positioning sleeve members, 2031-first positioning sleeve holes, 2032-second positioning sleeve holes and 2033-bolts;

300-snap-fit configuration.

Detailed Description

The technical scheme of the utility model will be further described with reference to the accompanying drawings.

Figures 1-2 illustrate a protective occlusion device according to an embodiment of the present utility model for use with a tracheostomy tube nozzle for protection. Specifically, the protection assembly 100 of the embodiment of the application includes a protection tube body 101 having one end fixed to the mouth of the tracheostomy tube, and a cover core 102 provided at the other end of the protection tube body 101. The cover core 102 has a three-layer structure including an innermost absorbent layer capable of absorbing moisture, a middle filter layer capable of filtering impurities, and an outermost water-blocking layer capable of preventing foreign matters and dust. When in use, the absorption layer of the cover core 102 is close to the pipe orifice of the protective pipe body 101, and the water-resistant layer is located at the outermost part far away from the pipe orifice of the protective pipe body 101 and is in direct contact with the outside air. By the arrangement, when a patient exhales air through the tracheotomy cannula, the exhaled air can be firstly contacted with the absorption layer, so that part of moisture can be kept in the absorption layer, and when the patient inhales next time, the moisture which is kept in the absorption layer before inhalation can be combined to enter the airway after the inhalation enters the absorption layer, and therefore the humidity of the inhalation is improved, and a moisturizing effect is achieved. The water-resistant layer positioned at the outermost side plays a role in preventing foreign matters and dust, and when the air is sucked, the outside air firstly contacts with the water-resistant layer, so that the air-resistant layer can prevent foreign matters, particles, dust and the like in the air. The middle filter layer can filter out some impurities such as bacterial particles, and the like, so that the germ content of air entering the air pipe during air suction is ensured to be small.

In clinical trials, the sputum will be reduced for one year with the tube using the shield assembly 100 of the present utility model, and sputum will be reduced, and sputum will be sucked 8-10 times a day without using the shield assembly 100 of the present utility model, and it will be necessary to continue to perform nebulization and moisturizing. After the protective component 100 of the embodiment of the utility model is used, the obvious sputum volume is reduced, only sputum is sucked twice, the protective cover is not atomized, the mouth and tongue dryness can not occur, and the blood oxygen saturation is maintained between 96% and 98%.

In some embodiments, as shown in fig. 2, a grille 103 is further disposed on the protective tube 101, where the grille 103 may reduce the possibility of the cover 102 or other foreign objects falling into the air tube from the protective tube 101. Especially when the cover core 102 is replaced, the port of the protective tube body 101 is directly ventilated, and the grille 103 reduces the possibility of foreign matters falling. In one possible embodiment, the grille 103 is disposed at the end of the protective tube body 101 facing the outside, so that when the cover core 102 is laid on the end of the protective tube body 101, the grille 103 can play a role of supporting the cover core 102, and the grille 103 disposed on the end is easier to manufacture than the grille 103 disposed on the middle. Moreover, with the provision of the grill 103, it is easier for the user to ascertain which end of the protective tube 101 is to be fitted over the mouth of the tracheostomy tube and which end is to be used for mounting the core 102.

In some embodiments, the cover core 102 is further provided with a low-viscosity adhesive tape, so that the cover core 102 can be fixed on the protective tube 101 through the adhesive tape, and when the cover core 102 needs to be replaced, the cover core 102 can be directly torn by hand, and a new cover core 102 can be replaced.

In some embodiments, the protection assembly 100 further includes a rubber band, which may be used to protect the connection between the tube body 101 and the tracheostomy tube, to strengthen the connection strength between the tube body 101 and the tracheostomy tube, and to reduce the possibility of the tube body 101 falling off the mouth of the tracheostomy tube.

In some embodiments, as shown in fig. 1-6, 8 and 9, a closure assembly 200 is also included to assist the patient in recovering spontaneous respiratory exercise. The occlusion assembly 200 includes an occlusion tube body 201 and an occlusion cap 202 that can be secured to the protective tube body 101. One end of the plugging tube 201 is detachably fixed on the protective tube 101, and the other end is provided with a plugging cover 202. The occlusion cap 202 is rotatably secured to the occlusion tube body 201 such that the coverage area of the occlusion cap 202 is variable, and thus the ventilation cross-sectional area of the occlusion tube body 201 is variable. Thus helping patients to do spontaneous respiratory exercise. With the enhancement of the autonomous respiratory ability of the patient, the blocking cover 202 can be rotated to gradually enlarge the coverage area of the blocking cover, and the ventilation cross-sectional area of the blocking tube 201 gradually becomes smaller until the blocking cover 202 completely covers the whole blocking tube 201, so that the patient does not breathe from the tracheotomy. Because the ventilation cross-sectional area of the plugging tube 201 can be adjusted according to the actual condition of a patient, the ventilation cross-sectional area which is gradually reduced provides the patient with the opportunity to adapt to spontaneous breathing, and is more beneficial to recovery of the patient than the direct tube plugging. If the patient condition deteriorates, the coverage area of the occlusion cap 202 may also be reduced, thereby increasing the ventilation cross-sectional area of the occlusion tube 201 to assist the patient in breathing.

In clinical trials, repeated pulmonary infections resulted in patients unable to successfully extubate, and the situation was significantly improved after the simultaneous use of the protective assembly 100 and the occluding assembly 200 of the present embodiment. The protection component 100 is only used in the initial stage, after the obvious sputum volume is reduced and the condition is stable, the blocking component 200 is arranged on the protection component 100 to perform blocking training, the ventilation cross-sectional area of the blocking pipe body 201 is gradually reduced until the blocking pipe body 201 can be fully blocked by the blocking cover 202, and then the pipe is pulled out to recover spontaneous breathing. At present, the test is carried out on 4 patients, wherein 2 patients are intubated for two months, the protective component is used for 100 days to 7 days in the initial stage, and the plugging component 200 is used for plugging training for 2 days to 3 days, so that the tube can be drawn out. The remaining 2 positions are cannulated for one week to half a month, and the cannula can be pulled out only by using the protection component 100 and the plugging component 200 to cooperate for 3 days, and spontaneous breathing can be recovered in the fourth day.

In some embodiments, when the occlusion tube 201 is secured to the protective tube 101, the cap 102 is positioned therebetween, further reducing the likelihood of the cap 102 falling out of the protective tube 101. At this time, even if an adhesive tape is not provided on the core 102, the core 102 can be pressed against the end of the protective tube 101 by the sealing tube 201, and does not fall off.

In some embodiments, as shown in fig. 1-2, a snap-fit structure may also be used to strengthen the connection when the occlusion cap 202 completely covers the occlusion tube body 201.

In some embodiments, the occluding assembly 200 further includes a positioning sleeve 203 that enables the occluding cap 202 to be secured in a selected position such that the footprint of the occluding cap 202 is defined, thereby ensuring a constant ventilation cross-sectional area. The positioning kit 203 may have a variety of embodiments. Fig. 3-4 show the alignment sleeve holes in structural engagement with pins 2033. Specifically, the plugging cover 202 and the plugging tube 201 are respectively provided with a first positioning sleeve hole 2031 and a second positioning sleeve hole 2032 which are matched, and when the plugging cover 202 rotates to the corresponding position, the plug pin 2033 passes through the first positioning sleeve hole 2031 and the second positioning sleeve hole 2032 to fix the plugging cover 202 and the plugging tube 201. If the position of the closure cap 202 needs to be adjusted, the plug 2033 is first removed from the positioning sleeve hole, then the closure cap 202 is rotated to other positions, and then the plug 2033 is inserted. The number of the first positioning sleeve holes 2031 and the second positioning sleeve holes 2032 can be set according to actual requirements, and the more the first positioning sleeve holes 2031 and the second positioning sleeve holes 2032 are matched, the more the relative positions can be fixed, that is, the more the coverage area of the optional plugging cover 202 is. Fig. 4 (a) and 4 (b) show, respectively, the change in the coverage area and the ventilation cross-sectional area of the occlusion tube body 201 as the occlusion cap 202 is rotated and its relative position to the occlusion tube body 201 is changed. The positioning sleeve holes can be arranged on the outer walls of the plugging tube body 201 and the plugging cover 202 as shown in fig. 3-4, and can also be arranged on the top side of the end part of the plugging tube body 201 and the bottom of the plugging cover 202. In one possible embodiment, an end plate is provided at the end of the plug rod of plug 2033, with the inner diameter D1 of first detent hole 2031 being smaller than end plate diameter D2 so that plug 2033 cannot be completely removed from first detent hole 2031, and the inner diameter D3 of second detent hole 2032 being greater than or equal to end plate diameter D2 so that plug 2033 can pass through second detent hole. The arrangement is such that the pins 2033 can hang all the way on the first positioning sleeve holes 2031 of the plugging cover 202, and when the corresponding second positioning sleeve holes 2032 are rotated, the pins 2033 can be inserted into the second positioning sleeve holes 2032 to achieve positioning. The suspended latch 2033 is less prone to loss than the fully extractable latch 2033, while reducing the likelihood of the latch 2033 falling into the patient's trachea.

In some embodiments, 5-7 illustrate a positioning sleeve 203 that is structurally mated with a rotating gear 2023 and a rubber pawl 2013. Specifically, the closure cap 202 includes a rotation gear 2023. The plugging tube 201 includes a rotation hole 2011 for receiving the rotation gear 2023. A fixing rod 2012 extends from the bottom of the rotation hole 2011, and the rotation gear 2023 can pass through the fixing rod 2012 and rotate around the fixing rod 2012. A rubber pawl 2013 protrudes from the inner wall of the rotation hole 2011. When the rotary gear 2023 of the closure cap 202 is mounted on the fixing lever 2012, the rubber pawl 2013 protruding from the inner wall of the rotary hole 2011 is interposed between the adjacent meshing teeth of the rotary gear 2023 and can be in contact with the meshing teeth. When the rotary gear 2023 of the plugging cap 202 is mounted on the fixing rod 2012, the relative position of the plugging cap 202 and the plugging tube 201 can be fixed by the interference force generated by the contact of the rubber pawl 2013 with the engaging teeth, so that the coverage area of the plugging cap 202 is also determined. When the coverage area needs to be adjusted, the plugging cover 202 is directly rotated by hands to enable the torsion force to be larger than the interference force, and when the plugging cover 202 is rotated to a required position, the plugging cover 202 can be fixed at the position by loosening hands. In one possible embodiment, a securing pin passes through the closure cap 202 and the securing lever 2012, whereby the closure cap 202 achieves axial securing. In one possible embodiment, a pallet is further provided on the fixing rod 2012, and the rotation gear 2023 passes through the fixing rod 2012 and is supported by the pallet, and because the pallet area is smaller, the contact area between the rotation gear 2023 and the rotation gear 2023 is smaller than that when the rotation gear 2023 directly contacts the bottom of the rotation hole 2011, so that the static friction force generated by the contact of the rotation gear 2023 is reduced. The positions of the rotation gear 2023 and the rotation hole 2011 are not limited to the outer walls provided to the plugging tube body 201 and the plugging cap 202 as shown in fig. 5 to 6, but may be provided on the top side of the end portion of the plugging tube body 201 and the bottom of the plugging cap 202.

In some embodiments, as shown in fig. 7, the teeth of the rotation gear 2023 are arc-shaped teeth, so that the inter-tooth space between adjacent teeth becomes smaller, thereby reducing the possibility of the rubber pawl 2013 coming loose from the teeth of the teeth, and enhancing the connection strength between the rubber pawl 2013 and the teeth. In one possible embodiment, the rubber pawl 2013 is an arcuate pawl, and the rubber pawl 2013 and the mating teeth flex in opposite directions when the rubber pawl 2013 is positioned between the teeth. That is, the end of the rubber pawl 2013 may abut against the recess of the arcuate engagement tooth or the projection of the arcuate engagement tooth may abut against the projection of the rubber pawl 2013, which may serve to reduce the tendency of the rotation gear 2023 to freely rotate. When the meshing teeth of the rotation gear 2023 opposite to the rubber pawl 2013 have a tendency to rotate toward the rubber pawl 2013, i.e., in the S1 direction of fig. 7 (a), the end of the rubber pawl 2013 will bear against the arcuate meshing teeth so that it will not continue to rotate. When the meshing teeth of the rotation gear 2023 opposite to the rubber pawl 2013 have a tendency to rotate away from the rubber pawl 2013, i.e., in the S2 direction of fig. 7 (b), the projections of the rubber pawl 2013 will bear against the projections of the arcuate meshing teeth so that they will not continue to rotate. When the coverage area needs to be adjusted, the plugging cover 202 is directly rotated by hand, so that the torsion force of the plugging cover is larger than the interference force of the rubber pawl 2013, the rubber pawl 2013 is deformed, and when the plugging cover 202 is rotated to a required position, the plugging cover 202 can be fixed at the position by loosening the hand.

In some embodiments, the positioning sleeve 203 may also employ a rotational bayonet and detent configuration fit. Specifically, the positioning conditions include a rotation bayonet provided on the occlusion tube body 201 and a plurality of bayonet positions provided on the occlusion cap 202. When the plugging cover 202 rotates to the corresponding position, the rotary bayonet lock can be toggled and clamped into the corresponding clamping position, so that the relative position of the plugging cover 202 and the plugging tube body 201 is determined, and the ventilation cross-sectional area can be kept unchanged when the patient breathes. The more clamping locations on the closure cap 202, the more fixed coverage area the closure cap 202 can be selected. In one possible embodiment, a spring is further disposed at the connection shaft between the rotating bayonet and the plugging tube 201, and the spring can apply a restoring force to the rotating bayonet toward the plugging cover 202, when the plugging cover 202 needs to be rotated, the rotating bayonet is pulled out by hand, and then the plugging cover 202 is rotated, and when the rotating bayonet is at the desired clamping position, the rotating bayonet is released, at this time, the rotating bayonet is clamped into the corresponding clamping position under the action of elastic force, so that the plugging cover 202 can be kept at that position. The arrangement of the spring can increase the connection strength of the plugging tube body 201 and the plugging cover 202. In one possible embodiment, the swivel bayonet is provided on the closure cap 202 and the bayonet is provided on the closure tube.

In some embodiments, fig. 8-9 illustrate the use of a rubber boot 2022 to secure the cap 2022. Specifically, the plugging cover 202 includes a rotation shaft 2021, and a rotation hole 2011 adapted to the rotation shaft 2021 is provided in the plugging tube 201. When in installation, the rotary shaft 2021 of the plugging cover 202 is inserted into the rotary hole 2011 of the plugging tube 201, so that the plugging cover 202 can rotate relative to the end face of the plugging tube 201. A rubber sleeve 2022 is further fitted over the rotation shaft 2021. When the rotation shaft 2021 is inserted into the rotation hole 2011, the rubber sleeve 2022 is located between the inner walls of the rotation hole 2011 of the rotation shaft 2021, and the rubber sleeve 2022 is in a pressed state. The pressed rubber sleeve 2022 generates static friction between it and the rotation hole 2011 and between it and the rotation shaft 2021, respectively. The static friction force can cause the closure cap 202 to be secured to the closure tube 201 such that the relative position of the closure cap 202 to the closure tube 201 is determined to achieve the desired coverage area and ventilation cross-sectional area. When the coverage area needs to be adjusted, the plugging cover 202 is directly rotated by hands to enable the torsion force to be larger than the static friction force, and when the plugging cover 202 is rotated to a required position, the plugging cover 202 can be fixed at the position by loosening hands.

In the embodiment of the present utility model, the fixing between some structures is in a detachable fixing manner, for example, the fixing between the plugging tube 201 and the protection tube 101. While some embodiments of the present utility model show snap-fit structure 300 secured, removable securing means include, but are not limited to, snap-fit, bolting, lap-joint securing, and the like.

Claims (10)

1. A protection plugging device for tracheotomy intubate mouth of pipe, its characterized in that: comprises a protective component; the protective component comprises a protective pipe body and a cover core; the cover core comprises a water-resistant layer, a filter layer and an absorption layer;

one end of the protective tube body can be fixed with the mouth of the tracheotomy intubation tube;

the cover core is detachably fixed at the other end of the protective pipe body;

the water blocking layer, the filter layer and the absorption layer are sequentially stacked;

when the cover core is fixed on the protection pipe body, the absorption layer is close to the protection pipe body, and the water blocking layer is far away from the protection pipe body.

2. The protective sealing device for a tracheostomy tube opening of claim 1, wherein: the guard assembly further includes a grille;

the grille can be fixed on the protective tube body.

3. The protective sealing device for a tracheostomy tube opening of claim 1, wherein: the protective assembly includes an adhesive tape;

the adhesive tape is arranged on the cover core, so that the cover core can be adhered and fixed on the protective pipe body.

4. A protective occlusion device for a tracheostomy tube opening according to any of claims 1-3, wherein: the device also comprises a plugging assembly; the plugging assembly comprises a plugging pipe body and a plugging cover;

one end of the plugging tube body can be fixed with the protective tube body, and the other end of the plugging tube body is connected with the plugging cover;

the occlusion cap is rotatably secured to the occlusion tube such that the occlusion cap can cover the occlusion tube and the coverage area of the occlusion cap is adjustable such that the ventilation cross-sectional area of the occlusion tube is adjustable;

when the plugging pipe body is fixed with the protection pipe body, the cover core is positioned between the plugging pipe body and the protection pipe body.

5. The protective sealing device for a tracheostomy tube nozzle of claim 4, wherein: the plugging assembly further comprises a positioning sleeve; the positioning sleeve comprises a first positioning sleeve hole, a second positioning sleeve hole and a bolt; the bolt comprises a plug rod and an end plate;

the first positioning sleeve and the second positioning sleeve are respectively arranged on the plugging cover and the plugging pipe body;

the two end plates are respectively arranged at two ends of the inserting connection rod;

the inner diameter of the first positioning sleeve hole is D1;

the diameter of the end plate is D2;

the inner diameter of the second positioning sleeve hole is D3;

D3≥D2＞D1；

when the plugging cover rotates to the corresponding position, the bolt can pass through the first locating sleeve hole and the second locating sleeve hole, so that the relative position of the plugging cover and the plugging pipe body is determined, and the coverage area of the plugging cover is determined.

6. The protective sealing device for a tracheostomy tube nozzle of claim 4, wherein: the plugging assembly further comprises a positioning sleeve; the positioning sleeve comprises a rotary bayonet lock and a clamping position;

the rotary bayonet lock and the bayonet lock are respectively arranged on the plugging pipe body and the plugging cover;

when the plugging cover rotates to a corresponding position, the rotary bayonet lock can be clamped into the clamping position, so that the relative position of the plugging cover and the plugging pipe body is determined, and the coverage area of the plugging cover is determined.

7. The protective sealing device for a tracheostomy tube nozzle of claim 4, wherein: the plugging cover comprises a rotating shaft and a rubber sleeve; the plugging pipe body comprises a rotary hole;

the rotary shaft can be inserted into the rotary hole, so that the plugging cover can rotate relative to the plugging pipe body;

the rubber sleeve can be sleeved on the rotating shaft;

when the rotating shaft is inserted into the rotating hole, the rubber sleeve is positioned between the rotating shaft and the inner wall of the rotating hole, and the rubber sleeve is in a pressed state.

8. The protective sealing device for a tracheostomy tube nozzle of claim 4, wherein: the device also comprises a buckle structure;

the protection pipe body is fixedly connected with the plugging pipe body through the clamping buckle structure.

9. The protective sealing device for a tracheostomy tube nozzle of claim 4, wherein: the blocking cover comprises a rotary gear; the rotary gear comprises meshing teeth; the plugging pipe body comprises a rotary hole, a fixed rod and a rubber pawl;

the rotary hole is arranged on the plugging pipe body;

the fixed rod is fixedly arranged at the bottom of the rotary hole;

the rubber pawl is fixed on the inner wall of the rotary hole;

the rotary gear can pass through the fixed rod;

the rubber pawl can be clamped between adjacent meshing teeth;

the rubber pawl may be in contact with the engagement teeth when the rubber pawl is located between adjacent engagement teeth.

10. The protective sealing device for a tracheostomy tube nozzle of claim 9, wherein:

the meshing teeth are arc-shaped teeth;

the rubber pawl is an arc pawl;

when the rubber pawl is positioned between the adjacent meshing teeth, the bending directions of the rubber pawl and the meshing teeth are opposite.