CN114425117A - Tracheal cannula with tube plugging adjusting structure for medical severe cases and method thereof - Google Patents

Abstract

The invention discloses a tracheal cannula with a blocking tube adjusting structure for medical severe cases and a method thereof, relates to the technical field of medical instruments, and solves the problems that in the prior art, a blocking device is independently arranged and fixed with the tracheal cannula in a clamping connection mode, is easy to fall off, causes blocking failure, can only completely block the tracheal cannula, and cannot adjust and block the tracheal cannula gradually according to the state of illness of a patient. The invention provides a trachea cannula with a pipe blocking adjusting structure for medical severe cases and a method thereof.A gas outlet barrel is arranged at the lower end of a gas inlet pipeline and is movably connected with a deep blocking hole, a movable barrel is rotated to drive the gas outlet barrel to move up and down, the gas outlet barrel is not completely arranged in the deep blocking hole, the gas outlet hole exposed outside the deep blocking hole can be normally used, the clamping position of the gas outlet barrel in the deep blocking hole is controlled, the pipe blocking area is adjusted, and the pipe blocking can be performed gradually to adapt to the requirements of patients.

Description

Tracheal cannula with tube plugging adjusting structure for medical severe cases and method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a tracheal cannula with a tube blockage adjusting structure for medical severe cases and a method thereof.

Background

Currently, in clinical treatment, tracheotomy is a common means for establishing an artificial airway when a critical patient is rescued, and mainly aims at the rescue of the critical patient, such as: for patients with dyspnea such as coma due to brain trauma, laryngeal obstruction, severe lung infection and the like, the tracheotomy catheter is used for carrying out operations such as oxygen inhalation, sputum aspiration and the like on the tracheotomy patient to recover the smooth respiratory tract, improve the ventilation function of the lung and facilitate the aspiration of lower respiratory tract secretion. Before the trachea is pulled out, a patient with tracheotomy clinically replaces a metal tracheal cannula firstly, tests for blocking the trachea and pulls out the trachea after the test for blocking the trachea succeeds. The blocking tube of the metal tracheal tube does not have a matched material at present, and the blocking tube made of the material is found by self at present in clinic, such as a syringe, a cork, an infusion bottle stopper and the like. The material is limited by the type of the catheter in use, is not easy to sterilize, has inhalation danger, fails to block the catheter and the like.

Chinese patent CN208974890U discloses a tracheal cannula blocking device, including big stifled cap and little stifled cap, big stifled cap includes the inserted part of backstop portion on upper portion and the round platform shape of lower part, the axial direction of big stifled cap is equipped with the air vent that runs through from top to bottom, the external diameter of backstop portion is greater than tracheal cannula's external diameter, the external diameter of the bottom of inserted part is less than tracheal cannula's internal diameter, little stifled cap is used for inserting the air vent in order to plug up the air vent, big stifled cap still includes cylindric sealing, backstop portion and inserted part are connected respectively to the upper and lower both ends of sealing, when big stifled cap inserts tracheal cannula, the surface and the tracheal cannula's inner wall sealing contact of sealing, the lower surface and the tracheal cannula's of backstop up end contact. The utility model discloses a tracheal cannula blocking device has guaranteed the sealed between sealing and the tracheal cannula's inner wall for it is tight to block up, so can prevent or reduce the circumstances that blocking device appears by coughing out and lead to blocking up the pipe failure.

Although this application solves the problems in the background art to some extent, the following problems exist in this application: 1. the blocking device is independently arranged and fixed with the tracheal cannula in a clamping connection mode, so that the blocking device is easy to fall off to cause blocking failure; 2. can only carry out the full shutoff to tracheal cannula, can't adjust the shutoff to tracheal cannula step by step according to patient's state of an illness.

Disclosure of Invention

The invention aims to provide a tracheal cannula with a cannula-blocking adjusting structure for medical severe illness and a method thereof.A fixed annular blocking block is arranged in an inner tube of the cannula, the up-and-down movement of a movable cylinder is realized through a first limiting slide block and a first inclined chute, and the overall reverse lifting of an air inlet pipeline is realized through a second limiting slide block and a second inclined chute, so that the blocking and opening of the tracheal cannula are controlled, the tracheal cannula is easy to control and convenient to adjust; the lower end of the air inlet pipeline is provided with an air outlet cylinder body which is movably connected with the plugging deep hole, the movable cylinder is rotated to drive the air outlet cylinder body to move up and down, the air outlet cylinder body is not completely arranged in the plugging deep hole, the air outlet hole exposed outside the plugging deep hole can be normally used, the clamping position of the air outlet cylinder body in the plugging deep hole is controlled, the pipe plugging area is adjusted, pipe plugging can be performed gradually, and the requirements of a patient are met; at the port department of connecting tube, set up the shutoff lid, can secondary seal, improve the effect of stifled pipe, can shelter from the tubbiness filter screen when not using simultaneously, avoid polluting, second wave bayonet socket and first wave bayonet socket block behind the stifled pipe, patient's mucus also can not pollute the tubbiness filter screen to the problem of proposing in the above-mentioned background art of solution.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a medical science severe case is with tracheal cannula that has stifled pipe regulation structure, includes tracheal cannula body, control seal cover, tracheal cannula body includes sleeve pipe outer tube and sleeve pipe inner tube, and the one end of sleeve pipe outer tube and the one end fixed connection of sleeve pipe inner tube have seted up spacing movable hole on the position that the sleeve pipe outer tube is close to sleeve pipe inner tube, is provided with first spacing slider on the inner wall of spacing movable hole, and swing joint has the control seal cover on the first spacing slider, and the inside of sleeve pipe inner tube is provided with annular plugging block, the control seal cover includes a movable section of thick bamboo, upper portion spacing ring and plugging cover, and the upper surface of a movable section of thick bamboo is provided with the upper portion spacing ring, and swing joint has the plugging cover between upper portion spacing ring and the movable section of thick bamboo, the inside swing joint of a movable section of thick bamboo has the admission line, admission line and sleeve pipe inner tube swing joint.

Furthermore, the inner wall of the inner pipe of the sleeve is symmetrically provided with guide rods which are movably connected with the air inlet pipeline.

Further, bilateral symmetry of inlet line lower extreme is provided with spacing horizontal pole, and the one end of spacing horizontal pole is provided with the direction lasso, and the direction lasso cup joints with the guide bar, and connecting clamping groove has been seted up to the upper end that inlet line is, and the block is connected with the closing plate in the connecting clamping groove, and the closing plate is connected with the inner wall block of sleeve pipe inner tube.

Furthermore, the upper end of the air inlet pipeline is fixedly connected with a connecting pipeline, the upper end of the connecting pipeline is provided with a filtering sleeve, the outer wall of the connecting pipeline is provided with a second inclined sliding groove, and the second inclined sliding groove is movably connected with the control sealing sleeve.

Furthermore, the filtering sleeve comprises a locking mounting ring and a barrel-shaped filtering net, the inner ring of the locking mounting ring is fixedly connected with the upper end of the barrel-shaped filtering net, and the locking mounting ring is fixedly connected with the upper end of the air inlet pipeline through threads.

Furthermore, the lower extreme of admission line is provided with first wave bayonet socket, is provided with out the gas barrel on the intermediate position of first wave bayonet socket, and the lower extreme of going out the gas barrel is seal structure, is provided with the venthole that the heliciform distributes on the lateral wall of going out the gas barrel, and the lower extreme of going out the gas barrel extends to in the annular shutoff piece.

Furthermore, a plugging deep hole is formed in the center of the annular plugging block and connected with the air outlet cylinder in a clamping mode, a second wavy bayonet is arranged on the periphery of the upper end of the annular plugging block and matched with the first wavy bayonet, and a rubber sealing gasket is arranged on the upper surface of the second wavy bayonet.

Furthermore, the periphery of the lower end of the annular plugging block is provided with fixed support columns at equal intervals, and one ends of the fixed support columns are fixedly connected with the inner wall of the sleeve inner pipe.

Further, the upper end symmetry of a movable section of thick bamboo is provided with the column spinner, and a movable section of thick bamboo passes through the lower fixed surface of column spinner and upper portion spacing ring to be connected, and one side of shutoff lid is provided with rotatory piece, and rotatory piece cup joints with the column spinner, is provided with the spacing slider of second on the inner wall of a movable section of thick bamboo, and the spacing slider of second and admission line swing joint are provided with first oblique spout, first oblique spout and first spacing slider swing joint on the outer wall of a movable section of thick bamboo.

The invention aims to solve another technical problem of providing a method for using a tracheal cannula with a blocked tube adjusting structure for medical severe patients, which comprises the following steps:

s1: sleeving the inner tube of the sleeve with the trachea of a patient, placing the outer tube of the sleeve at the neck of the patient, rotating the blocking cover to the outer position of the movable cylinder, rotating the movable cylinder to enable the position of the movable cylinder to sink, lifting the connecting pipeline, extending the upper end of the connecting pipeline out of the movable cylinder, and connecting the upper end of the connecting pipeline with an oxygen device to supply oxygen to the patient;

s2: when the pipe is tried to be plugged, the movable cylinder is screwed upwards, the connecting pipeline sinks, the air outlet cylinder body is not completely arranged in the plugging deep hole, the air outlet exposed outside the plugging deep hole can be normally used, the depth of screwing the movable cylinder is controlled, so that the number of the air outlet exposed outside the plugging deep hole is adjusted, the plugging area of the tracheal cannula of a patient is adjusted according to needs, the barrel-shaped filter screen performs air filtration, and breathing gas is filtered for the patient when the tracheal cannula is not completely plugged;

s3: when the air outlet barrel is completely plugged, the movable barrel is upwards screwed to the maximum value, the connecting pipeline sinks to the lowest position, at the moment, the second wave-shaped bayonet is completely clamped with the first wave-shaped bayonet, and the plugging deep hole completely plugs the air outlet holes which are spirally distributed and arranged on the side wall of the air outlet barrel;

s4: the plugging cover rotates to the position between the movable barrel and the upper limiting ring, the lower surface of the plugging cover is abutted to the upper surface of the filtering sleeve, the first wave-shaped bayonet at the lower end of the air inlet pipeline is driven to extrude the rubber sealing gasket at the second wave-shaped bayonet, and meanwhile, the plugging cover plugs the upper end of the connecting pipeline.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention provides a tracheal cannula with a cannula-blocking adjusting structure for medical critical care and a method thereof.A fixed annular blocking block is arranged in the inner tube of the cannula, the up-and-down movement of a movable cylinder is realized through a first limit slide block and a first inclined chute, and the overall reverse lifting of an air inlet pipeline is realized through a second limit slide block and a second inclined chute, so that the blocking and opening of the tracheal cannula are controlled, the tracheal cannula is easy to control and convenient to adjust;

2. the invention provides a trachea cannula with a pipe blocking adjusting structure for medical severe cases and a method thereof.A gas outlet barrel is arranged at the lower end of a gas inlet pipeline and is movably connected with a deep blocking hole, a movable barrel is rotated to drive the gas outlet barrel to move up and down, the gas outlet barrel is not completely arranged in the deep blocking hole, the gas outlet hole exposed outside the deep blocking hole can be normally used, the clamping position of the gas outlet barrel in the deep blocking hole is controlled, the pipe blocking area is adjusted, and pipe blocking can be performed gradually and sequentially to adapt to the requirements of patients;

3. according to the tracheal cannula with the tube plugging adjusting structure for the medical severe cases and the method thereof, the end opening of the connecting pipeline is provided with the plugging cover, secondary sealing can be achieved, the tube plugging effect is improved, meanwhile, the barrel-shaped filter screen can be shielded when the tracheal cannula is not used, pollution is avoided, the second wave-shaped bayonet is clamped with the first wave-shaped bayonet after tube plugging, and mucus of a patient cannot pollute the barrel-shaped filter screen.

Drawings

FIG. 1 is a view showing a state of a pipe jam according to the present invention;

FIG. 2 is a view of the outer tube of the bushing of the present invention;

FIG. 3 is a state diagram of the pipe of the present invention;

FIG. 4 is a block diagram of the control seal cartridge of the present invention;

FIG. 5 is a view of the air intake duct of the present invention;

FIG. 6 is an exploded view of the air intake duct of the present invention;

FIG. 7 is a block diagram of a filter cartridge of the present invention;

fig. 8 is a diagram of the annular plugging block of the present invention.

In the figure: 1. a tracheal cannula body; 11. a casing outer tube; 111. limiting the movable hole; 112. a first limit slide block; 12. sleeving an inner pipe; 121. a guide bar; 2. a control seal cartridge; 21. a movable barrel; 211. a spin column; 212. a second limit slide block; 213. a first inclined chute; 22. an upper limit ring; 23. a blocking cover; 3. an annular plugging block; 31. plugging the deep hole; 32. a second wave-shaped bayonet; 33. a rubber gasket; 34. fixing the support columns; 4. an air intake duct; 41. a limiting cross bar; 411. a guide collar; 42. a connecting clamping groove; 43. a sealing plate; 44. connecting a pipeline; 441. a second inclined chute; 45. a filter cartridge; 451. locking the mounting ring; 452. a barrel-shaped filter screen; 46. a first wave-shaped bayonet; 47. an air outlet cylinder body; 471. and an air outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a tracheal cannula with a tube blockage adjusting structure for medical critical care comprises a tracheal cannula body 1 and a control sealing sleeve 2, wherein the tracheal cannula body 1 comprises a cannula outer tube 11 and a cannula inner tube 12, one end of the cannula outer tube 11 is fixedly connected with one end of the cannula inner tube 12, a position of the cannula outer tube 11 close to the cannula inner tube 12 is provided with a limiting movable hole 111, the inner wall of the limiting movable hole 111 is provided with a first limiting slider 112, the first limiting slider 112 is movably connected with the control sealing sleeve 2, the inner wall of the cannula inner tube 12 is symmetrically provided with guide rods 121, the guide rods 121 are movably connected with an air inlet pipeline 4, and the guide rods 121 are used for guiding the air inlet pipeline 4, so that the air inlet pipeline 4 can only move up and down in the direction of the guide rods 121, and the air inlet pipeline 4 is prevented from rotating.

Referring to fig. 4, the control sealing sleeve 2 includes a movable cylinder 21, an upper limiting ring 22 and a sealing cover 23, the upper surface of the movable cylinder 21 is provided with the upper limiting ring 22, a sealing cover 23 is movably connected between the upper limiting ring 22 and the movable cylinder 21, the interior of the movable cylinder 21 is movably connected with the air inlet pipe 4, the upper end of the movable cylinder 21 is symmetrically provided with a rotating column 211, the movable cylinder 21 is fixedly connected with the lower surface of the upper limiting ring 22 through the rotating column 211, one side of the sealing cover 23 is provided with a rotating block which is sleeved with the rotating column 211, the sealing cover 23 can move between the movable cylinder 21 and the upper limiting ring 22 through the rotating block, when the sealing cover 23 rotates to the position between the movable cylinder 21 and the upper limiting ring 22, the lower surface of the sealing cover 23 abuts against the upper surface of the filtering sleeve 45 to seal the air inlet pipe 4, when the sealing cover 23 rotates to the external position of the movable cylinder 21, the filtering sleeve 45 is in an unblocked state and can exchange gas, a second limiting slide block 212 is arranged on the inner wall of the movable cylinder 21, the second limiting slide block 212 is movably connected with the gas inlet pipeline 4, a first inclined slide groove 213 is arranged on the outer wall of the movable cylinder 21, the first inclined slide groove 213 is movably connected with the first limiting slide block 112, the movable cylinder 21 is rotated, the movable cylinder 21 can be driven to rotate and lift in the limiting movable hole 111, the connecting pipeline 44 can be driven to lift through the second limiting slide block 212, when the movable cylinder 21 lifts, the connecting pipeline 44 descends, the connecting pipeline 44 retracts into the movable cylinder 21, at the moment, the connecting pipeline 44 can be plugged through the plugging cover 23, when the movable cylinder 21 sinks, the connecting pipeline 44 lifts, the upper end of the connecting pipeline 44 extends out of the movable cylinder 21, and the upper end of the connecting pipeline 44 can be connected with an oxygen device.

Referring to fig. 5-7, the air inlet pipe 4 is movably connected to the inner tube 12 of the casing, two sides of the lower end of the air inlet pipe 4 are symmetrically provided with a limiting cross bar 41, one end of the limiting cross bar 41 is provided with a guiding ferrule 411, the guiding ferrule 411 is sleeved with a guiding rod 121, the upper end of the air inlet pipe 4 is provided with a connecting clamping groove 42, a sealing plate 43 is connected in the connecting clamping groove 42 in a clamping manner, the sealing plate 43 is connected with the inner wall of the inner tube 12 of the casing in a clamping manner, the sealing plate 43 is used for sealing the upper end of the inner tube 12 of the casing, so as to prevent oxygen from overflowing from the upper end of the inner tube 12 of the casing during oxygen inhalation, the upper end of the air inlet pipe 4 is fixedly connected with a connecting pipe 44, the upper end of the connecting pipe 44 is provided with a filtering sleeve 45, the outer wall of the connecting pipe 44 is provided with a second inclined chute 441, the second inclined chute 441 is movably connected with the control sealing sleeve 2, the filtering sleeve 45 comprises a locking mounting ring 451 and a barrel-shaped filtering net 452, the inner circle of locking collar 451 and the upper end fixed connection of tubbiness filter screen 452, locking collar 451 passes through the upper end fixed connection of screw thread and admission line 4, carry out filtration through tubbiness filter screen 452, when not blocking up completely, filter the breathing gas for the patient, the outer wall of locking collar 451 is cambered surface structure, play the buckle effect, conveniently connect the oxygen pipeline, the lower extreme of admission line 4 is provided with first wave bayonet socket 46, be provided with out gas barrel 47 on the intermediate position of first wave bayonet socket 46, the lower extreme of going out gas barrel 47 is seal structure, be provided with the venthole 471 of heliciform distribution on the lateral wall of going out gas barrel 47, the lower extreme of going out gas barrel 47 extends to in the annular shutoff piece 3.

Referring to fig. 8, an annular blocking block 3 is arranged inside the casing inner tube 12, a deep blocking hole 31 is formed in the center of the annular blocking block 3, the deep blocking hole 31 is connected with an air outlet cylinder 47 in a clamping manner, a second wave-shaped bayonet 32 is arranged on the periphery of the upper end of the annular blocking block 3, the second wave-shaped bayonet 32 is matched with the first wave-shaped bayonet 46, a rubber gasket 33 is arranged on the upper surface of the second wave-shaped bayonet 32, when the second wave-shaped bayonet 32 is clamped with the first wave-shaped bayonet 46, the air outlet cylinder 47 is completely arranged in the deep blocking hole 31, the deep blocking hole 31 completely blocks the air outlet holes 471 which are spirally distributed and are formed in the side wall of the air outlet cylinder 47, when the second wave-shaped bayonet 32 is separated from the first wave-shaped bayonet 46, the air outlet cylinder 47 is not completely arranged in the deep blocking hole 31, and the air outlet holes 471 which are exposed outside the deep blocking hole 31 can be normally used, the clamping position of the gas outlet cylinder 47 in the plugging deep hole 31 is controlled to realize the adjustment of the pipe plugging area, the fixed support columns 34 are arranged on the periphery of the lower end of the annular plugging block 3 at equal distances, one end of each fixed support column 34 is fixedly connected with the inner wall of the sleeve inner pipe 12, and the fixed support columns 34 fix the position of the annular plugging block 3.

In order to better show the implementation process of the tracheal cannula with the tube blockage adjusting structure for the medical critical apparatus, the embodiment now provides a use method of the tracheal cannula with the tube blockage adjusting structure for the medical critical apparatus, which comprises the following steps:

the method comprises the following steps: the inner tube 12 of the sleeve is sleeved with the trachea of a patient, the outer tube 11 of the sleeve is placed at the neck of the patient, the blocking cover 23 is rotated to the outer position of the movable cylinder 21, the movable cylinder 21 is rotated to enable the movable cylinder 21 to sink, the connecting tube 44 rises, the upper end of the connecting tube 44 extends out of the movable cylinder 21, the upper end of the connecting tube 44 can be connected with an oxygen device to supply oxygen to the patient, the guide rod 121 is used for guiding the air inlet tube 4, so that the air inlet tube 4 can only move up and down in the direction of the guide rod 121 to prevent the air inlet tube 4 from rotating, the movable cylinder 21 is rotated to drive the movable cylinder 21 to rotate and rise in the limiting movable hole 111, and the connecting tube 44 can be driven to rise and fall by the second limiting slide block 212;

step two: when the pipe is tried to be blocked, the movable cylinder 21 is screwed upwards, the connecting pipeline 44 sinks, the air outlet cylinder body 47 is not completely arranged in the blocked deep hole 31, the air outlet 471 exposed outside the blocked deep hole 31 can be normally used, the depth of screwing the movable cylinder 21 is controlled, so that the number of the air outlet 471 exposed outside the blocked deep hole 31 is adjusted, the blocking area of the tracheal cannula of a patient is adjusted as required, the barrel-shaped filter screen 452 performs air filtration, and when the pipe is not completely blocked, respiratory gas is filtered for the patient;

step three: when the plugging is completed, the movable cylinder 21 is screwed upwards to the maximum value, the connecting pipeline 44 sinks to the lowest position, at the moment, the second wave-shaped bayonet 32 is completely clamped with the first wave-shaped bayonet 46, and the plugging deep hole 31 completely plugs the air outlet holes 471 which are spirally distributed and are formed in the side wall of the air outlet cylinder body 47;

step four: the blocking cover 23 rotates to the position between the movable barrel 21 and the upper limiting ring 22, the lower surface of the blocking cover 23 is abutted to the upper surface of the filtering sleeve 45, the first wave-shaped bayonet 46 at the lower end of the air inlet pipeline 4 is driven to extrude the rubber sealing gasket 33 on the second wave-shaped bayonet 32, the rubber sealing gasket 33 is extruded and deformed, the sealing effect can be improved, and meanwhile, the blocking cover 23 blocks the upper end of the connecting pipeline 44, and the sealing performance can be improved due to double sealing.

In summary, the following steps: the tracheal cannula with the cannula-blocking adjusting structure for the severe medical diseases and the method thereof have the advantages that the fixed annular blocking block 3 is arranged in the cannula inner tube 12, the up-and-down movement of the movable cylinder 21 is realized through the first limiting slide block 112 and the first inclined chute 213, and the overall reverse lifting of the air inlet pipeline 4 is realized through the second limiting slide block 212 and the second inclined chute 441, so that the blocking and opening of the tracheal cannula are controlled, the tracheal cannula is easy to control and convenient to adjust; the lower end of the air inlet pipeline 4 is provided with an air outlet cylinder 47, the air outlet cylinder 47 is movably connected with the plugging deep hole 31, the movable cylinder 21 is rotated to drive the air outlet cylinder 47 to move up and down, the air outlet cylinder 47 is not completely arranged in the plugging deep hole 31, an air outlet 471 exposed outside the plugging deep hole 31 can be normally used, the clamping position of the air outlet cylinder 47 in the plugging deep hole 31 is controlled, the pipe plugging area is adjusted, pipe plugging can be sequentially and gradually performed, and the requirements of a patient are met; at the port department of connecting tube 44, set up blocking cover 23, can secondary seal, improve the effect of stifled pipe, can shelter from tubbiness filter screen 452 when not using simultaneously, avoid polluting, second wave bayonet socket 32 and first wave bayonet socket 46 block behind the stifled pipe, and patient's mucus also can not pollute tubbiness filter screen 452.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (10)

1. The utility model provides a medical science severe case is with tracheal cannula that has stifled pipe and adjust structure, includes tracheal cannula body (1), control seal cover (2), its characterized in that: the tracheal cannula body (1) comprises a cannula outer tube (11) and a cannula inner tube (12), one end of the cannula outer tube (11) is fixedly connected with one end of the cannula inner tube (12), a limiting movable hole (111) is formed in the position, close to the cannula inner tube (12), of the cannula outer tube (11), a first limiting slide block (112) is arranged on the inner wall of the limiting movable hole (111), a control sealing sleeve (2) is movably connected onto the first limiting slide block (112), an annular sealing block (3) is arranged inside the cannula inner tube (12), the control sealing sleeve (2) comprises a movable tube (21), an upper limiting ring (22) and a sealing cover (23), the upper surface of the movable tube (21) is provided with the upper limiting ring (22), the sealing cover (23) is movably connected between the upper limiting ring (22) and the movable tube (21), and an air inlet pipeline (4) is movably connected inside the movable tube (21), the air inlet pipeline (4) is movably connected with the sleeve inner pipe (12).

2. A tracheal cannula with a blockage adjusting structure for use in critical medical applications as claimed in claim 1, wherein: the inner wall of the sleeve inner pipe (12) is symmetrically provided with guide rods (121), and the guide rods (121) are movably connected with the air inlet pipeline (4).

3. A tracheal tube having a blockage-adjusting structure for use in critical medical applications as claimed in claim 2, wherein: the bilateral symmetry of admission line (4) lower extreme is provided with spacing horizontal pole (41), and the one end of spacing horizontal pole (41) is provided with direction lasso (411), and direction lasso (411) cup joints with guide bar (121), and admission line is that connecting slot (42) have been seted up to the upper end of (4), and the joint is connected with closing plate (43) in connecting slot (42), and closing plate (43) are connected with the inner wall block of sleeve pipe inner tube (12).

4. A tracheal cannula with a blockage adjusting structure for use in critical medical applications as claimed in claim 1, wherein: the upper end of the air inlet pipeline (4) is fixedly connected with a connecting pipeline (44), the upper end of the connecting pipeline (44) is provided with a filtering sleeve (45), the outer wall of the connecting pipeline (44) is provided with a second inclined sliding groove (441), and the second inclined sliding groove (441) is movably connected with the control sealing sleeve (2).

5. A tracheal cannula with a blockage adjusting structure for use in critical medical applications as claimed in claim 4, wherein: the filter sleeve (45) comprises a locking mounting ring (451) and a barrel-shaped filter screen (452), the inner ring of the locking mounting ring (451) is fixedly connected with the upper end of the barrel-shaped filter screen (452), and the locking mounting ring (451) is fixedly connected with the upper end of the air inlet pipeline (4) through threads.

6. A tracheal cannula with a blockage adjusting structure for use in critical medical applications as claimed in claim 1, wherein: the lower extreme of admission line (4) is provided with first wave bayonet socket (46), is provided with out gas barrel (47) on the intermediate position of first wave bayonet socket (46), and the lower extreme of going out gas barrel (47) is seal structure, is provided with air outlet hole (471) that the heliciform distributes on the lateral wall of going out gas barrel (47), and the lower extreme of going out gas barrel (47) extends to in annular shutoff piece (3).

7. A tracheal cannula with a blockage adjusting structure for use in critical medical applications as claimed in claim 6, wherein: the center of the annular blocking block (3) is provided with a blocking deep hole (31), the blocking deep hole (31) is connected with the clamping of the air outlet cylinder body (47), a second wave-shaped bayonet (32) is arranged on the periphery of the upper end of the annular blocking block (3), the second wave-shaped bayonet (32) is matched with the first wave-shaped bayonet (46), and a rubber sealing gasket (33) is arranged on the upper surface of the second wave-shaped bayonet (32).

8. A tracheal cannula with a blockage adjusting structure for use in critical medical applications as claimed in claim 1, wherein: the periphery of the lower end of the annular plugging block (3) is provided with fixed support columns (34) at equal intervals, and one ends of the fixed support columns (34) are fixedly connected with the inner wall of the sleeve inner pipe (12).

9. A tracheal cannula with a blockage adjusting structure for use in critical medical applications as claimed in claim 1, wherein: the upper end symmetry of a movable section of thick bamboo (21) is provided with column spinner (211), a movable section of thick bamboo (21) passes through column spinner (211) and the lower fixed surface connection of upper portion spacing ring (22), one side of shutoff lid (23) is provided with the rotation piece, the rotation piece cup joints with column spinner (211), be provided with second limit slide (212) on the inner wall of a movable section of thick bamboo (21), second limit slide (212) and admission line (4) swing joint, be provided with first oblique spout (213) on the outer wall of a movable section of thick bamboo (21), first oblique spout (213) and first limit slide (112) swing joint.

10. A method of using the tracheal tube with the occlusion adjusting structure for the medical critical apparatus according to any one of claims 1 to 9, comprising the steps of:

s1: sleeving a sleeve inner tube (12) with a trachea of a patient, placing a sleeve outer tube (11) at the neck of the patient, rotating a blocking cover (23) to the outer position of a movable cylinder (21), rotating the movable cylinder (21) to enable the position of the movable cylinder (21) to sink, enabling a connecting pipeline (44) to rise, extending the upper end of the connecting pipeline (44) out of the movable cylinder (21), and connecting the upper end of the connecting pipeline (44) with an oxygen device to supply oxygen for the patient;

s2: when the pipe is tried to be blocked, the movable cylinder (21) is screwed upwards, the connecting pipeline (44) sinks, the air outlet cylinder body (47) is not completely arranged in the blocking deep hole (31), the air outlet hole (471) exposed outside the blocking deep hole (31) can be normally used, the depth of screwing the movable cylinder (21) is controlled, so that the number of the air outlet holes (471) exposed outside the blocking deep hole (31) is adjusted, the blocking area of the tracheal cannula of a patient is adjusted as required, the barrel-shaped filter screen (452) is used for filtering air, and when the pipe is not completely blocked, the breathing gas is filtered for the patient;

s3: when the air outlet barrel is completely plugged, the movable barrel (21) is upwards screwed to the maximum value, the connecting pipeline (44) sinks to the lowest position, at the moment, the second wavy bayonet (32) is completely clamped with the first wavy bayonet (46), and the plugging deep hole (31) completely plugs the air outlet holes (471) which are formed in the side wall of the air outlet barrel body (47) and distributed in a spiral shape;

s4: the blocking cover (23) rotates to a position between the movable barrel (21) and the upper limiting ring (22), the lower surface of the blocking cover (23) is abutted to the upper surface of the filtering sleeve (45), the first wavy bayonet (46) at the lower end of the air inlet pipeline (4) is driven to extrude the rubber sealing gasket (33) on the second wavy bayonet (32), and meanwhile the blocking cover (23) blocks the upper end of the connecting pipeline (44).

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