Sputum suction tube for old people lying in bed

Abstract

The invention relates to the technical field of medical instruments, in particular to a sputum suction tube for old people lying in bed, which comprises a sputum suction tube body connected with an aspirator, the sputum suction tube body is connected with the aspirator, so that negative pressure released by the aspirator can be introduced into the sputum suction tube body, a connecting sleeve is mounted on the outer surface of the sputum suction tube body, and the connecting sleeve is connected with the aspirator. A supporting assembly is fixedly installed on the outer surface of the connecting sleeve, a limiting plate is fixedly installed on the outer surface of the connecting sleeve, the limiting plate can abut against the outside of the mouth of the bedridden old person, an inserting pipe is arranged in the connecting sleeve, and the inserting pipe can extend to the throat of the bedridden old person from the interior of the connecting sleeve. And the sputum suction tube body can be conveniently inserted into the respiratory tract of the bedridden old people from the interior of the insertion tube. The mouth of the bedridden old people can be supported and opened through the supporting assembly, so that the head end of the sputum suction pipe body can be accurately and conveniently inserted into the respiratory tract of the bedridden old people through the insertion pipe in the connecting sleeve, and sputum suction treatment is conducted.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a sputum suction tube for bedridden elderly people. Background Art

[0002] A suction tube is a medical device used to suck out sputum, secretions or other foreign matter in the patient's respiratory tract. Structurally, one end of the suction tube is connected to an aspirator device, which is used to create negative pressure inside the tube. The other end is a soft straw part that can be inserted into the patient's respiratory tract to suck out sputum inside the patient's respiratory tract, thereby preventing a large amount of sputum from accumulating in the patient's respiratory tract, causing breathing difficulties, respiratory system infections, etc.

[0003] When the sputum suction tube is used, it is generally inserted into the respiratory tract of the bedridden elderly through the oral cavity. When the sputum suction tube is inserted from the oral cavity, the head end of the sputum suction tube cannot be accurately inserted into the respiratory tract, and it will inevitably touch the flat conductor and other parts in the oral cavity of the bedridden elderly, causing discomfort to the patient. In the prior art, the sputum suction personnel press down the tongue with a tongue depressor to facilitate the insertion of the sputum suction tube. However, the sputum suction personnel operate the tongue depressor with one hand and insert the soft sputum suction tube with the other hand, which is also inconvenient for the insertion of the sputum suction tube. Therefore, a sputum suction tube is needed that can accurately insert the sputum suction tube into the patient's respiratory tract and make it easier for the sputum suction personnel to insert the sputum suction tube into the respiratory tract of the bedridden elderly. Summary of the invention

[0004] The purpose of the present invention is to provide a sputum suction tube for bedridden elderly people to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention aims to provide a sputum suction tube for bedridden elderly people, comprising a sputum suction tube body connected to an aspirator, the sputum suction tube body being connected to the aspirator so that the negative pressure released by the aspirator can be passed into the interior of the sputum suction tube body, a connecting sleeve is installed on the outer surface of the sputum suction tube body, a supporting assembly is fixedly installed on the outer surface of the connecting sleeve, the supporting assembly can be placed in the mouth of the bedridden elderly people to prevent the bedridden elderly people from biting the sputum suction tube body, a limiting plate is fixedly installed on the outer surface of the connecting sleeve, the limiting plate can be blocked on the outside of the mouth of the bedridden elderly people, a plug-in tube is arranged inside the connecting sleeve, the plug-in tube can extend from the connecting sleeve to the throat of the bedridden elderly people, so as to facilitate the sputum suction tube body to be inserted into the respiratory tract of the bedridden elderly people from the inside of the plug-in tube;

[0006] The top of the limit plate is provided with an installation groove which passes through the connecting sleeve, and a pressing component for adjusting the angle of the plug-in tube is installed inside the installation groove. The pressing component can press against the outer surface of the plug-in tube to adjust the angle of the plug-in tube in the mouth of the bedridden elderly person to the throat. A fixing component is installed on the outer surface of the plug-in tube, and the fixing component clamps the plug-in tube and fixes it inside the connecting sleeve.

[0007] As a further improvement of the present technical solution, the support assembly includes two support blocks fixedly mounted on the outer surface of the connecting sleeve, and the sides of the two support blocks away from the connecting sleeve are arranged in an arc shape. The two support blocks can be placed in the mouth of bedridden elderly people to support and open the oral cavity.

[0008] As a further improvement of the present technical solution, the pressing assembly includes slots opened on both sides of the inner wall of the mounting groove, return springs are installed at the bottom of the inner walls of the two slots, a sliding block is installed on the top of each return spring, a pressing block is installed inside the mounting groove, the outer side of the pressing block is fixedly installed on the side of the sliding block, and the pressing block can be pressed downward to rest against the outer surface of the plug-in tube, and can rebound with the help of the sliding blocks and return springs on both sides.

[0009] As a further improvement of the present technical solution, support columns are fixedly installed on both sides of the bottom of the pressing block, and an arc-shaped opening is provided in the middle of the bottom of the pressing block, and the arc-shaped opening fits with the outer surface of the plug-in tube. A roller is rotatably installed on the bottom of the arc-shaped opening, and the arc-shaped opening at the bottom of the pressing block abuts against the outer surface of the plug-in tube, and the plug-in tube can be rotated by the roller.

[0010] As a further improvement of the present technical solution, two pressing blocks are provided, and the two pressing blocks are symmetrically distributed on the outer surface of the plug-in tube. The two pressing blocks press simultaneously so that the arc-shaped opening is against the outer surface of the plug-in tube, so that the plug-in tube can be rotated by the roller at the bottom of the arc-shaped opening.

[0011] As a further improvement of the present technical solution, the fixing assembly includes a leakage hole formed on the inner wall of the connecting sleeve, the leakage hole penetrates the connecting sleeve and extends to the interior of the limiting plate, an extrusion spring is installed at the bottom of the inner wall of the leakage hole, a fixing block is installed at the other end of the bottom of the extrusion spring, a side of the fixing block away from the extrusion spring is pressed against the outer surface of the plug-in tube, two fixing blocks are provided, and the two fixing blocks are fixed to the interior of the connecting sleeve by clamping the plug-in tube through the extrusion spring.

[0012] As a further improvement of the technical solution, the two fixed blocks are arranged in the middle of the two pressing blocks, and a downwardly inclined bevel is opened on the top of the fixed block. The pressing block is pressed downward to press the support column down into the bevel, thereby retracting the fixed block backward and no longer clamping the plug-in tube.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the suction tube for bedridden elderly people, when suctioning sputum for bedridden elderly people through the suction tube body, the plug-in tube is clamped and fixed to the inside of the connecting sleeve through the fixing block, and the connecting sleeve is put into the patient's mouth. The supporting block can make the patient's upper and lower lips press together on the supporting block, and the connecting sleeve is placed in the patient's mouth, so that the suction personnel can insert the suction tube body directly into the patient's throat into the respiratory tract through the plug-in tube, so as to avoid the suction tube body touching the patient's flat conductor and other parts during insertion, causing discomfort to the bedridden elderly people.

[0015] 2. In the suction tube for bedridden elderly people, a person presses two pressing blocks at the same time, so that the sliding blocks fixedly connected at both ends of the pressing blocks squeeze the reset spring, and the pressing blocks move downward, so that the arc-shaped opening at the bottom of the pressing block abuts against the outer surface of the plug-in tube, and the plug-in tube is limited, so that the plug-in tube can be rotated by the roller at the bottom of the arc-shaped opening, so as to achieve the effect of adjusting the angle of the plug-in tube in the oral cavity of the bedridden elderly person, so that the suction personnel can use the plug-in tube to accurately insert the suction tube body into the respiratory tract of the bedridden elderly person.

[0016] 3. In the suction tube for bedridden elderly people, when the plug-in tube is clamped and fixed by two fixing blocks, the pressing block is pressed at the same time, so that the support column at the bottom of the pressing block is pressed against the oblique opening on the fixing block, so that the fixing block is retracted toward the outside of the plug-in tube. At this time, the arc-shaped opening at the bottom of the pressing block does not touch the plug-in tube, and the fixing block is retracted away from the plug-in tube by the extrusion spring, so that the plug-in tube can be pulled inside the connecting sleeve to adjust the length, and the pressing block is continuously pressed downward, so that the arc-shaped opening at the bottom of the pressing block and the roller are pressed against the outer surface of the plug-in tube, so that the plug-in tube can be rotated to adjust the angle, thereby achieving the effect of adjusting the angle and length of the plug-in tube, which is convenient for the suction personnel to accurately insert the suction tube body into the respiratory tract of the bedridden elderly to suction sputum. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the support assembly structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the pressing assembly of the present invention;

[0020] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0021] Figure 5 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0022] Figure 6 For the present invention Figure 5 Enlarged structural diagram at B in the middle.

[0023] The meaning of each number in the figure is:

[0024] 1. Sputum suction tube body;

[0025] 2. Connecting sleeve; 21. Support assembly; 201. Support block;

[0026] 3. Limiting plate;

[0027] 4. Plug-in pipe;

[0028] 5. Pressing assembly; 501. Return spring; 502. Sliding block; 503. Pressing block; 5031. Strut; 5032. Arc-shaped opening; 5033. Roller;

[0029] 6. Fixing assembly; 601. Leak hole; 602. Extrusion spring; 603. Fixing block;

[0030] 7. Oblique mouth. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example

[0033] See also Figure 1-Figure 6 As shown, the purpose of this embodiment is to provide a sputum suction tube for bedridden elderly people, including a sputum suction tube body 1 connected to an aspirator, the sputum suction tube body 1 is connected to the aspirator so that the negative pressure released by the aspirator can be passed into the interior of the sputum suction tube body 1, a connecting sleeve 2 is installed on the outer surface of the sputum suction tube body 1, a supporting assembly 21 is fixedly installed on the outer surface of the connecting sleeve 2, and the supporting assembly 21 can be placed in the mouth of the bedridden elderly to prevent the bedridden elderly from biting the sputum suction tube body 1, a limiting plate 3 is fixedly installed on the outer surface of the connecting sleeve 2, and the limiting plate 3 can be blocked on the outside of the mouth of the bedridden elderly, and a plug-in tube 4 is arranged inside the connecting sleeve 2, and the plug-in tube 4 can extend from the connecting sleeve 2 to the throat of the bedridden elderly, so as to facilitate the sputum suction tube body 1 to be inserted into the respiratory tract of the bedridden elderly from the inside of the plug-in tube 4;

[0034] A mounting groove penetrating the connecting sleeve 2 is provided on the top of the limiting plate 3, and a pressing component 5 for adjusting the angle of the plug-in tube 4 is installed inside the mounting groove. The pressing component 5 can press against the outer surface of the plug-in tube 4 to adjust the angle of the plug-in tube 4 located in the mouth of the bedridden elderly person to the throat. A fixing component 6 is installed on the outer surface of the plug-in tube 4, and the fixing component 6 clamps the plug-in tube 4 and fixes it inside the connecting sleeve 2.

[0035] The mouth of a bedridden elderly person can be supported and opened by the support component 21, so that the head end of the suction tube body 1 can be accurately and conveniently plugged into the respiratory tract of the bedridden elderly person through the plug-in tube 4 in the connecting sleeve 2 to perform sputum suction treatment, and the fixing component 6 is against the outer surface of the plug-in tube 4 to fix the plug-in tube 4 inside the connecting sleeve 2, and the pressing component 5 is pressed downward to retract the fixing component 6 so that the fixing component 6 leaves the plug-in tube 4. At the same time, the pressing component 5 contacts the plug-in tube 4, and the angle of the plug-in tube 4 can be rotated to adjust the outlet of the plug-in tube 4 to connect to the throat of the bedridden elderly person, and the fixing component 6 no longer presses against the plug-in tube 4, and the length of the plug-in tube 4 extending into the mouth of the bedridden elderly person can be adjusted to be suitable for use by different patients.

[0036] First, the specific structure of the support component 21 is disclosed. The support component 21 includes two support blocks 201 fixedly mounted on the outer surface of the connecting sleeve 2. The two support blocks 201 are arranged in an arc shape on one side away from the connecting sleeve 2. The two support blocks 201 can be placed in the mouth of bedridden elderly people to support and open the oral cavity.

[0037] The improvement of this embodiment is that: through the two symmetrically distributed support blocks 201 on the outer surface of the connecting sleeve 2, the upper and lower lips of the bedridden elderly person can be engaged with the arc surfaces of the two support blocks 201, so that the plug-in tube 4 can be extended into the mouth of the bedridden elderly person through the connecting sleeve 2.

[0038] The specific structure of the pressing component 5 is disclosed again. The pressing component 5 includes slots opened on both sides of the inner wall of the installation groove, and return springs 501 are installed at the bottom of the inner walls of the two slots. A sliding block 502 is installed on the top of each return spring 501, and a pressing block 503 is installed inside the installation groove. The outer side of the pressing block 503 is fixedly installed on the side of the sliding block 502. The pressing block 503 can be pressed downward to the outer surface of the plug-in tube 4, and can rebound with the help of the sliding blocks 502 and the return springs 501 on both sides.

[0039] Abutment columns 5031 are fixedly installed on both sides of the bottom of the pressing block 503, and an arc-shaped opening 5032 is arranged in the middle of the bottom of the pressing block 503, and the arc-shaped opening 5032 fits with the outer surface of the plug-in tube 4, and a roller 5033 is rotatably installed at the bottom of the arc-shaped opening 5032, and the arc-shaped opening 5032 at the bottom of the pressing block 503 abuts against the outer surface of the plug-in tube 4, and the plug-in tube 4 can rotate an angle through the roller 5033. There are two pressing blocks 503, and the two pressing blocks 503 are symmetrically distributed on the outer surface of the plug-in tube 4. The two pressing blocks 503 press at the same time to make the arc-shaped opening 5032 abut against the outer surface of the plug-in tube 4, so that the plug-in tube 4 can rotate an angle through the roller 5033 at the bottom of the arc-shaped opening 5032.

[0040] When the insertion tube 4 is inserted into the mouth of the bedridden elderly person, it is necessary to connect the rear end of the insertion tube 4 to the throat to facilitate the suction tube body 1 to be inserted into the insertion tube 4 and then into the respiratory tract of the bedridden elderly person. The top and bottom of the limit plate 3 are slidably installed with pressing blocks 503, and the personnel press the two pressing blocks 503 at the same time, so that the sliding blocks 502 fixedly connected at both ends of the pressing blocks 503 squeeze the return spring 501, and the pressing blocks 503 move downward, so that the arc-shaped opening 5032 at the bottom of the pressing blocks 503 abuts against the outer surface of the insertion tube 4, and the insertion tube 4 is limited, so that the insertion tube 4 can be rotated by the roller 5033 at the bottom of the arc-shaped opening 5032, so as to achieve the effect of adjusting the angle of the insertion tube 4 in the mouth of the bedridden elderly person, so that the suction personnel can use the insertion tube 4 to accurately insert the suction tube body 1 into the respiratory tract of the bedridden elderly person.

[0041] Taking into account the different sizes of the oral cavity of bedridden elderly people, the lengths of the plug-in tube 4 that needs to be inserted are different. In order to make the plug-in tube 4 suitable for different bedridden elderly people, the specific structure of the fixing component 6 is disclosed. The fixing component 6 includes a leakage hole 601 opened on the inner wall of the connecting sleeve 2. The leakage hole 601 penetrates the connecting sleeve 2 and extends to the inside of the limiting plate 3. An extrusion spring 602 is installed at the bottom of the inner wall of the leakage hole 601. A fixing block 603 is installed at the other end of the bottom of the extrusion spring 602. The side of the fixing block 603 away from the extrusion spring 602 is against the outer surface of the plug-in tube 4. Two fixing blocks 603 are provided. The two fixing blocks 603 clamp the plug-in tube 4 and fix it inside the connecting sleeve 2 through the extrusion spring 602.

[0042] An internal leakage hole 601 is opened on the inner wall of the connecting sleeve 2 and penetrates to the limit plate 3, so that one end of the extrusion spring 602 is connected to the bottom of the inner wall of the leakage hole 601, and the other end is connected to the outer surface of the fixed block 603. The extrusion spring 602 exerts an extrusion force on the fixed block 603, so that the fixed block 603 clamps and fixes the outer surface of the plug-in tube 4 inside the connecting sleeve 2 to prevent the plug-in tube 4 from moving inside the connecting sleeve 2.

[0043] Considering again how the pressing block 503 squeezes and shifts the fixed block 603, the length of the insertion tube 4 is adjusted in the oral cavity of the bedridden elderly person. The two fixed blocks 603 are arranged in the middle of the two pressing blocks 503. The top of the fixed block 603 is provided with a downwardly inclined inclined opening 7. The pressing block 503 is pressed downward to press the support column 5031 down against the inclined opening 7, and the fixed block 603 is retracted backward, and the insertion tube 4 is no longer clamped.

[0044] When the plug-in tube 4 is clamped and fixed by the two fixing blocks 603, the pressing block 503 is pressed at the same time, so that the supporting column 5031 at the bottom of the pressing block 503 is pressed against the inclined opening 7 on the fixing block 603, so that the fixing block 603 is retracted to the outside of the plug-in tube 4. At this time, the arc-shaped opening 5032 at the bottom of the pressing block 503 does not touch the plug-in tube 4, and the fixing block 603 also leaves the plug-in tube 4, so that the plug-in tube 4 can be pulled inside the connecting sleeve 2 to adjust the length, and the pressing block 503 is continuously pressed downward, so that the arc-shaped opening 5032 and the roller 5033 at the bottom of the pressing block 503 are pressed against the outer surface of the plug-in tube 4, so that the plug-in tube 4 can be rotated to adjust the angle, so as to achieve the effect of adjusting the angle and length of the plug-in tube 4, so that the suction personnel can accurately insert the suction tube body 1 into the respiratory tract of the bedridden elderly to suction the sputum.

[0045] In summary, the working principle of this solution is as follows:

[0046] When suctioning sputum for bedridden elderly people through the suction tube body 1, the insertion tube 4 is clamped and fixed to the inside of the connecting sleeve 2 by the fixing block 603, and the connecting sleeve 2 is put into the patient's mouth. The support block 201 can make the patient's upper and lower lips press against the arc surface of the support block 201, and the connecting sleeve 2 is placed in the patient's mouth, so that the suction personnel can insert the suction tube body 1 directly into the patient's throat and into the respiratory tract through the insertion tube 4, so as to avoid the suction tube body 1 touching the patient's flat conductor and other parts during insertion, causing discomfort to the bedridden elderly.

[0047] When the insertion tube 4 is extended into the mouth of the bedridden elderly person, the rear end of the insertion tube 4 needs to be connected to the throat, and the personnel press the two pressing blocks 503 at the same time, so that the sliding blocks 502 fixedly connected at both ends of the pressing blocks 503 squeeze the return spring 501, and the pressing block 503 moves downward, so that the arc-shaped opening 5032 at the bottom of the pressing block 503 abuts against the outer surface of the insertion tube 4, and the insertion tube 4 is limited, so that the insertion tube 4 can be rotated with the help of the roller 5033 at the bottom of the arc-shaped opening 5032, so as to achieve the effect of adjusting the angle of the insertion tube 4 in the mouth of the bedridden elderly person, so that the suction personnel can use the insertion tube 4 to accurately insert the suction tube body 1 into the respiratory tract of the bedridden elderly person.

[0048] When the plug-in tube 4 is clamped and fixed by the two fixing blocks 603, the pressing block 503 is pressed at the same time, so that the supporting column 5031 at the bottom of the pressing block 503 is pressed against the inclined opening 7 on the fixing block 603, so that the fixing block 603 is retracted to the outside of the plug-in tube 4. At this time, the arc-shaped opening 5032 at the bottom of the pressing block 503 does not touch the plug-in tube 4, and the fixing block 603 also leaves the plug-in tube 4, so that the plug-in tube 4 can be pulled inside the connecting sleeve 2 to adjust the length, and the pressing block 503 is continuously pressed downward, so that the arc-shaped opening 5032 and the roller 5033 at the bottom of the pressing block 503 are pressed against the outer surface of the plug-in tube 4, so that the plug-in tube 4 can be rotated to adjust the angle, so as to achieve the effect of adjusting the angle and length of the plug-in tube 4, so that the suction personnel can accurately insert the suction tube body 1 into the respiratory tract of the bedridden elderly to suction the sputum.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sputum suction tube for bedridden elderly people, comprising a sputum suction tube body (1) connected to an aspirator, wherein the sputum suction tube body (1) is connected to the aspirator so that the negative pressure released by the aspirator can pass into the interior of the sputum suction tube body (1), characterized in that: The outer surface of the sputum suction tube body (1) is installed with a connecting sleeve (2), and a supporting assembly (21) is fixedly installed on the outer surface of the connecting sleeve (2). The supporting assembly (21) can be placed in the mouth of a bedridden elderly person to prevent the bedridden elderly person from biting the sputum suction tube body (1). The outer surface of the connecting sleeve (2) is fixedly installed with a limiting plate (3), and the limiting plate (3) can be blocked on the outside of the mouth of the bedridden elderly person. The inside of the connecting sleeve (2) is provided with a plug-in tube (4), and the plug-in tube (4) can extend from the inside of the connecting sleeve (2) to the throat of the bedridden elderly person, so as to facilitate the sputum suction tube body (1) to be inserted into the respiratory tract of the bedridden elderly person from the inside of the plug-in tube (4); The top of the limit plate (3) is provided with an installation groove that passes through the connecting sleeve (2), and a pressing component (5) for adjusting the angle of the plug-in tube (4) is installed inside the installation groove. The pressing component (5) can adjust the angle of the plug-in tube (4) located in the oral cavity of the bedridden elderly person to the throat by pressing against the outer surface of the plug-in tube (4). A fixing component (6) is installed on the outer surface of the plug-in tube (4), and the fixing component (6) clamps and fixes the plug-in tube (4) inside the connecting sleeve (2).

2. The sputum suction tube for bedridden elderly according to claim 1, characterized in that: The support assembly (21) comprises two support blocks (201) fixedly mounted on the outer surface of the connection sleeve (2); a side of the two support blocks (201) away from the connection sleeve (2) is arranged in an arc shape; the two support blocks (201) can be placed at the mouth of a bedridden elderly person to support and open the mouth.

3. The sputum suction tube for bedridden elderly according to claim 1, characterized in that: The pressing assembly (5) comprises notches opened on both sides of the inner wall of the installation groove, and the bottom of the inner wall of the two notches is installed with a return spring (501), and the top of each return spring (501) is installed with a sliding block (502), and a pressing block (503) is installed inside the installation groove, and the outer side of the pressing block (503) is fixedly installed on the side of the sliding block (502). The pressing block (503) can be pressed downward to abut against the outer surface of the plug-in tube (4), and can rebound with the help of the sliding blocks (502) and the return springs (501) on both sides.

4. The sputum suction tube for bedridden elderly according to claim 3, characterized in that: Abutment columns (5031) are fixedly installed on both sides of the bottom of the pressing block (503); an arc-shaped opening (5032) is arranged in the middle of the bottom of the pressing block (503); the arc-shaped opening (5032) fits with the outer surface of the plug-in tube (4); a roller (5033) is rotatably installed at the bottom of the arc-shaped opening (5032); the arc-shaped opening (5032) at the bottom of the pressing block (503) abuts against the outer surface of the plug-in tube (4); and the plug-in tube (4) can be rotated at an angle by the roller (5033).

5. The sputum suction tube for bedridden elderly according to claim 4, characterized in that: Two pressing blocks (503) are provided, and the two pressing blocks (503) are symmetrically distributed on the outer surface of the plug-in tube (4). The two pressing blocks (503) press simultaneously so that the arc-shaped opening (5032) abuts against the outer surface of the plug-in tube (4), so that the plug-in tube (4) can rotate at an angle through the roller (5033) at the bottom of the arc-shaped opening (5032).

6. The sputum suction tube for bedridden elderly according to claim 1, characterized in that: The fixing assembly (6) comprises a leak hole (601) formed on the inner wall of the connecting sleeve (2), the leak hole (601) passing through the connecting sleeve (2) and extending to the interior of the limiting plate (3), a pressing spring (602) being installed at the bottom of the inner wall of the leak hole (601), a fixing block (603) being installed at the other end of the bottom of the pressing spring (602), the side of the fixing block (603) away from the pressing spring (602) being pressed against the outer surface of the plug-in tube (4), two fixing blocks (603) being provided, the two fixing blocks (603) being clamped and fixed to the interior of the connecting sleeve (2) by the pressing spring (602) to clamp the plug-in tube (4).

7. The sputum suction tube for bedridden elderly according to claim 6, characterized in that: The two fixing blocks (603) are arranged in the middle of the two pressing blocks (503). The top of the fixing block (603) is provided with an inclined opening (7) inclined downward. The pressing block (503) is pressed downward so that the support column (5031) is pressed downward into the inclined opening (7), and the fixing block (603) is retracted backward so as to no longer clamp the plug-in tube (4).

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