CN114699570B - A respiratory sputum suction device for patients with infectious diseases - Google Patents

Abstract

A respiratory tract sputum aspirator for infectious disease patients comprises a sputum aspirator tube storage tank, a sputum aspirator, a closed rotary pushing and pulling mechanism for pushing or pulling out the sputum aspirator tube in unidirectional rotation, and a mask for protecting the face of the patient; still including first protection pipe box and second protection pipe box, first protection pipe box and second protection pipe box) all overlap outside the sputum aspirator. In the sputum suction process, the sputum suction pipe can be sealed in the first protective pipe sleeve, the second protective pipe sleeve, the sealed rotary pushing and sucking mechanism and the mask in the whole process, so that the infection risk caused by sputum suction of patients with infectious diseases is effectively reduced; under the condition that medical staff cannot operate in a sealed environment, the rotary extension and rotary lifting of the sputum suction tube can be automatically completed through the effective airtight rotary pushing and pulling mechanism, and the requirements of the medical staff are reduced.

Description

A respiratory sputum suction device for patients with infectious diseases

Technical field

The invention relates to the technical field of medical devices, specifically a respiratory tract sputum suction device for patients with infectious diseases.

Background technique

Sputum suction refers to a method of sucking out secretions from the respiratory tract through the oral cavity and nasal cavity to keep the respiratory tract open and prevent complications such as aspiration pneumonia, atelectasis, and suffocation. Indications: Comatose patients, those with excessive sputum and the possibility of suffocation, and those who need intratracheal administration, injection of contrast media or dilution of sputum.

The process of suctioning sputum is to turn the patient's head to the side of the operator, and the comatose patient can use a tongue depressor or mouth opener to help the patient open his mouth. Fold the end of the catheter (connected to the glass tube) with one hand to prevent negative pressure from adsorbing the mucous membrane and causing damage. Use a sterile holding forceps with the other hand to insert the head end of the suction catheter into the patient's oral cavity and pharynx, step on the suction switch with your foot, loosen the end of the catheter, suck out the secretions from the oral cavity and throat first, then replace the suction tube, and when the patient inhales Take advantage of the situation and insert the sputum suction tube into the trachea through the throat to a certain depth (about 15cm). Pull the sputum suction tube upward from the deep part and rotate it left and right to suck out the sputum. The suction time should not exceed 15 seconds each time to prevent the patient from becoming hypoxic. Its shortcomings are: 1. During the suctioning process, body sputum overflow is easy to occur. The patient is a patient with an infectious disease, which will spread the virus in the air and cause human-to-human transmission; 2. The sputum suctioning process is done manually by medical staff. Complete, tube insertion depth, weight, etc. all rely on the experience of medical staff; 3. When lifting, the sputum suction tube needs to be rotated, and the ratio of manual operation rotation speed and lifting speed cannot be constant, which can easily cause discomfort to the patient; 4. . When the patient feels unwell, the suction tube needs to be manually bent to block the negative pressure. It is not easy to completely block the suction by manual operation; 5. After the suction is completed, the contaminated suction tube can only be bent section by section because it is made of soft material. Recycling is time-consuming and laborious.

Contents of the invention

The purpose of the present invention is to provide a respiratory tract sputum suction device for patients with infectious diseases, which can effectively reduce the risk of infection caused by sputum suction for patients with infectious diseases.

The object of the present invention is achieved through such a technical solution, which includes a sputum suction tube, a storage tank and a sputum suction machine. The device also includes a closed rotation for one-way rotation to push in or one-way rotation to extract the sputum suction tube. A push-and-pull mechanism and a mask worn on the patient's face for protection; one end of the sputum suction tube is connected to the sputum suction machine, and the other end of the sputum-suction tube passes through the sealed rotating push-and-pull mechanism and the mask in sequence and extends into the patient's face with infectious diseases. In the mouth and nose, the sputum suction tube is pushed by a rotating push-pull mechanism;

The device also includes a first protective pipe sleeve and a second protective pipe sleeve. One end of the first protective pipe sleeve is connected to the storage tank, and the other end is connected to the rotating push-pull mechanism. One end of the second protective pipe sleeve is connected to the rotating push-pull mechanism. The mechanism is connected, and the other end is connected with the mask; the first protective tube cover and the second protective tube cover are both placed outside the sputum suction tube.

Further, the sputum suction tube includes a first suction tube and a second suction tube. The first suction tube and the second suction tube are rotationally connected through a rotating sleeve, and the rotating sleeve is located in the first protective pipe sleeve.

Further, the first straw or the second straw includes a corrugated tube.

Furthermore, a space for accommodating redundant first straws and second straws is provided in the first protective pipe sleeve.

Further, the rotating push-pull mechanism includes a sealed box, a first installation tube and a second installation tube arranged in the box. The first installation tube is horizontally arranged on the bottom end surface of the box, and the second installation tube is perpendicular to the first installation tube. An installation pipe, the bottom end surface of the second installation pipe is fixed on the outer wall of the first installation pipe, and the second installation pipe is connected with the first installation pipe;

A first opening is provided on one side wall of the box, the outer wall of the first installation tube is fixed at the first opening position on the box, and one end of the second protective pipe sleeve can be installed at the first opening position on the box. is connected to the first installation pipe;

A second opening is provided on the top wall of the box, one end of the first protective pipe sleeve can be installed at the second opening position on the box, and the top surface of the second installation tube is located below the second opening.

Further, the rotating push-pull mechanism also includes a third installation pipe. The outer wall of the third installation pipe is provided with external threads. The inner wall of the second installation pipe is provided with internal threads. The top of the second installation pipe and the bottom of the third installation pipe are threaded. Connection; a number of transmission teeth are evenly distributed on the upper part of the outer wall of the third installation pipe; the height of the transmission teeth is greater than the distance from the third installation pipe to the top surface of the box, and the height of the transmission teeth is greater than the internal thread of the second installation pipe and the third installation The height of the external thread of the pipe;

The transmission teeth mesh with the first gear, the first gear is installed on the rotating shaft of the motor, the motor is installed in the box, and the width of each tooth of the first gear is smaller than the distance between two adjacent teeth of the transmission teeth;

A first guide tube () through which the sputum suction tube can pass is provided on the central axis of the third installation tube. The first guide tube is fixed on the inner wall of the third installation tube; there are openings on the wall of the first guide tube. There is a third opening connecting the inside and outside of the first guide tube. A push block is provided at the position of the third opening. The push block can extend into the third opening. The push block is connected to one end of the telescopic rod, and the other end of the telescopic rod is fixed to the third opening. 3. Install the inner wall of the pipe.

Further, a fourth opening connecting the first installation pipe and the third installation pipe is opened on the outer wall of the first installation pipe, and one end of the second guide pipe is fixedly connected to the inner wall of the first installation pipe at the position of the fourth opening. The other end of the second guide pipe extends to the first opening position and is connected with one end of the third guide pipe. The third guide pipe is located in the second protective pipe sleeve. The other end of the third guide pipe passes through and is fixed on the mounting plate. , can be extended into the patient's mouth and nose, and the mounting plate is slidably installed in the annular first chute; the mask is provided with a fifth opening for installing and connecting the second protective tube sleeve, and the first chute is provided On the mask at the fifth opening position;

The sputum suction tube can pass through the second guide tube and the third guide tube in sequence, and interference fit therewith.

Further, the top surface of the storage tank is provided with a sixth opening and a seventh opening that communicates the inside and outside of the storage tank. An introduction and installation pipe for installing the sputum suction tube is provided at the sixth opening position. The top of the storage tank at the sixth opening position is The surface is also provided with a first access pipe with internal threads. The introduction and installation pipe is located in the first access pipe. The first access pipe can be threadedly connected with the first protection pipe sleeve; the top of the storage tank at the seventh opening position The surface is also provided with a second access pipe, and the second access pipe is provided with an internal thread. The second access pipe can be threadedly connected with the sputum suction machine or the first protective pipe sleeve;

The storage tank is also provided with an eighth opening that can be used to put the mask. The storage tank at the eighth opening position is also provided with a third access pipe. The third access pipe and the first opening position at the first opening position are also provided. The installation pipes are all provided with internal threads of the same size, and both the third access pipe and the first installation pipe can be threadedly connected to one end of the second protection pipe sleeve;

The third access pipe is also provided with a pipe cover that can close the third access pipe.

Further, a ninth opening is also provided on the side wall of the box, and one end of the first installation tube away from the first opening is fixed on the box at the position of the ninth opening;

The device also includes an oxygen supply machine, which is connected to the first installation pipe at the ninth opening position through an oxygen pipe.

Due to the adoption of the above technical solution, the present invention has the following advantages:

1. During the process of suctioning sputum, the present invention can seal the sputum suction tube in the first protective tube cover, the second protective tube cover, the sealed rotating push-pull mechanism and the mask, effectively reducing the risk of sputum suction in patients with infectious diseases. risk of infection;

2. In a sealed environment, when medical staff cannot operate, the effectively sealed rotating push-pull mechanism can automatically complete the rotation, extension and rotation of the sputum suction tube, which reduces the requirements for medical staff;

3. The first guide tube cooperates with the push plate to complete the rotation, extension, rotation and pulling of the sputum suction tube, and the blocking operation of the sputum suction tube, solving multiple technical problems in a sealed environment;

4. The first guide tube, the second guide tube and the third guide tube can limit the traveling direction of the sputum suction tube to prevent the sputum suction tube from causing damage to the patient during the lifting process; and the structure of the guide tube affects the sputum suction tube. Secondary sealing was carried out to reduce the risk of infection;

5. After the sputum suction is completed, the sputum suction tube can be put into the first protective tube cover by rotating the pushing mechanism and cooperating with the medical staff to operate the first protective tube cover; the disposable first protective tube cover and the second protective tube The first protective pipe sleeve and the second protective pipe sleeve are installed through threads. During the rotation and removal process, the first protective pipe sleeve and the second protective pipe sleeve are automatically sealed, achieving zero exposure;

6. The three access tubes of the storage tank can fix the used first protective tube cover, second protective tube cover and mask on the storage tank, which prevents infection and facilitates storage and processing.

Other advantages, objects, and features of the present invention will, to the extent that they are set forth in the description that follows, and to the extent that they will become apparent to those skilled in the art upon examination of the following, or may be derived from This invention is taught by practicing it. The objectives and other advantages of the invention may be realized and obtained by the following description and claims.

Description of the drawings

The drawings of the present invention are described below.

Figure 1 is a schematic three-dimensional structural diagram of the present invention;

Figure 2 is a schematic diagram of the three-dimensional structure of the sputum suction tube;

Figure 3 is a schematic three-dimensional structural diagram of the rotating push-pull mechanism;

Figure 4 is an exploded view of the installation of the second installation pipe and the third installation pipe;

Figure 5 is a cross-sectional view of the installation structure of the second installation pipe and the third installation pipe;

Figure 6 is a cross-sectional view of the connection between the second protective tube sleeve, the third guide tube and the mask;

Figure 7 is a schematic cross-sectional structural view of the storage tank.

In the picture: 1. Sputum suction tube; 2. Storage tank; 3. Rotating push-pull mechanism; 4. Mask; 5. First protective tube cover; 6. Second protective tube cover; 7. First suction tube; 8. Two suction pipes; 9. Rotating sleeve; 10. Bellows; 11. Box; 12. First installation pipe; 13. Second installation pipe; 14. First opening; 15. Second opening; 16. Third installation pipe ; 17. Transmission teeth; 18. First gear; 19. Motor; 20. First guide tube; 21. Third opening; 22. Push block; 23. Telescopic rod; 24. Fourth opening; 25. Second guide pipe; 26. The third guide pipe; 27. Installation plate; 28. The first chute; 29. The fifth opening; 30. The sixth opening; 31. The seventh opening; 32. Introduction to the installation pipe; 33. The first connection Inlet pipe; 34. Second access pipe; 35. Eighth opening; 36. Third access pipe; 37. Ninth opening; 38. Oxygen supply machine; 39. Oxygen pipe; 40. Pipe cover.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and examples.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "back", "left" and "right" The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this document. The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as limiting the embodiments of the invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Or integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood in specific situations.

As shown in Figure 1, a respiratory tract sputum suction device for patients with infectious diseases includes a sputum suction tube 1, a storage tank 2 and a sputum suction machine. The device also includes a sputum suction device for one-way rotation and pushing or one-way Rotate and extract the sealed rotating push mechanism 3 of the sputum suction tube 1 and the mask 4 worn on the patient's face for protection; one end of the sputum suction tube 1 is connected to the sputum suction machine, and the other end of the sputum suction tube 1 passes through the sealed The rotating push-pull mechanism 3 and the mask 4 extend into the mouth and nose of patients with infectious diseases, and the sputum suction tube 1 is pushed by the rotating push-pull mechanism 3;

The device also includes a first protective pipe sleeve 5 and a second protective pipe sleeve 6. One end of the first protective pipe sleeve 5 is connected to the storage tank 2, and the other end is connected to the rotating push-pull mechanism 3. The second protective pipe sleeve 6 One end is connected to the rotating push-pull mechanism 3, and the other end is connected to the mask 4; the first protective tube cover 5 and the second protective tube cover 6 are both placed outside the sputum suction tube 1.

In this embodiment, when in use, one end of the sputum suction tube is connected to the storage tank, and the storage tank is connected to the negative pressure end of the sputum suction machine. The other end of the sputum suction tube is placed on the power end of the rotating push-pull mechanism. The mechanism rotates in one direction and pushes the suction tube through the mask and into the patient's nasal cavity; when lifting and suctioning sputum, the rotating and pushing mechanism works in reverse, rotating in one direction and lifting out the suction tube. The extraction speed of the entire process is The one-way rotation speed is controlled by the rotation push-pull mechanism, which is safe and reliable. During the entire pushing and extraction process, the path that the sputum suction tube passes is protected by the first protective tube cover, the second protective tube cover, the rotating pushing and extraction mechanism and the mask, so that it will not be exposed to the air, effectively reducing the risk of infection. Finally, when the sputum suction tube is separated from the rotating push-pull mechanism, the medical staff only needs to put the sputum suction tube into the first protective tube cover through the first protective tube cover.

As shown in Figure 2, the sputum suction tube 1 includes a first suction tube 7 and a second suction tube 8. The first suction tube 7 and the second suction tube 8 are rotationally connected through a rotating sleeve 9. The rotating sleeve 9 is located in the first protective tube. Set of 5. The first straw 7 or the second straw 8 includes a bellows 10 . The first protective pipe sleeve 5 is provided with a space for accommodating redundant first straws 7 and second straws 8 .

In this embodiment, the sputum suction tube is designed separately through the first suction tube and the second suction tube, and are connected through a rotating sleeve, which can effectively prevent the sputum suction tube from being blocked or accelerated and reversed due to multiple rotations, which may injure the patient. The bellows can store the excess sputum suction tube in the first protective tube sleeve and can be extended or shortened at any time as needed.

As shown in Figure 3, the rotary push-pull mechanism 3 includes a sealed box 11, a first installation tube 12 and a second installation tube 13 arranged in the box 11. The first installation tube 12 is horizontally arranged in the box 11 On the bottom end surface of the second installation pipe 13, the second installation pipe 13 is perpendicular to the first installation pipe 12. The bottom end face of the second installation pipe 13 is fixed on the outer wall of the first installation pipe 12, and the second installation pipe 13 is connected with the first installation pipe 12. 12 connected;

A first opening 14 is provided on one side wall of the box 11. The outer wall of the first installation pipe 12 is fixed on the first opening 14 of the box 11. One end of the second protection pipe sleeve 6 can be installed on the box. The position of the first opening 14 on the body 11 is connected to the first installation pipe 12;

A second opening 15 is provided on the top wall of the box 11. One end of the first protective pipe sleeve 5 can be installed at the position of the second opening 15 on the box 11. The top surface of the second installation tube 13 is located at the position of the second opening 15. Two openings 15 below.

In this embodiment, the first installation pipe and the second installation pipe adopt a three-way design structure. The sputum suction pipe enters from the second installation pipe and passes out from one end of the first installation pipe under the action of the rotating push-pull mechanism. Then enter the second protective pipe sleeve; the other port of the first installation pipe can be connected with the oxygen supply machine to provide the patient with the required oxygen. When the sputum suction tube enters and exits, the first installation tube and the second installation tube play the role of protection and guidance. The first installation tube and the second installation tube also play the role of connecting the first protection sleeve and the second protection tube. The role of casing and oxygen tubes.

As shown in Figures 3, 4 and 5, the rotating push-pull mechanism 3 also includes a third installation pipe 16. The outer wall of the third installation pipe 16 is provided with external threads, and the inner wall of the second installation pipe 13 is provided with internal threads. thread, the top of the second installation pipe 13 is threadedly connected to the bottom of the third installation pipe 16; a number of transmission teeth 17 are evenly distributed on the upper part of the outer wall of the third installation pipe 16; the height of the transmission teeth 17 is greater than that of the third installation pipe 16 to the box The distance between the top surfaces, and the height of the transmission teeth 17 is greater than the height of the internal thread of the second installation pipe 13 and the external thread of the third installation pipe 16;

The transmission teeth 17 mesh with the first gear 18. The first gear 18 is installed on the rotating shaft of the motor 19. The motor 19 is installed in the box 11. The width of each tooth of the first gear 18 is smaller than that of two adjacent transmission teeth 17. the distance between teeth;

A first guide tube 20 that can pass through the sputum suction tube 1 is provided on the central axis of the third installation tube 16. The first guide tube 20 is fixed to the inner wall of the third installation tube 16; the first guide tube 20 The pipe wall is provided with a third opening 21 connecting the inside and outside of the first guide pipe 20. A push block 22 is provided at the third opening 21. The push block 22 can extend into the third opening 21. The push block 22 is connected to the telescopic rod 23. One end of the telescopic rod 23 and the other end of the telescopic rod 23 are fixed on the inner wall of the third installation tube 16 .

In this embodiment, the third installation tube, the first guide tube and the push block serve as the execution unit for pushing and lifting the sputum suction tube, and play the role of pushing, lifting and blocking the sputum suction tube. When it is necessary to push the sputum suction tube in, pull the new sputum suction tube out of the first protective tube sleeve and pass through the first guide tube; at this time, start the forward motor and the telescopic rod, and the telescopic rod will push the sputum suction tube On the inner wall of the first guide pipe; the motor drives the third installation pipe to rotate through the first gear and transmission teeth. The third installation pipe is threadedly connected to the second installation pipe. Under the restriction of the second installation pipe, the first installation pipe is Rotate and move downward. Since the sputum suction tube is fixed to the inner wall of the first guide tube by the push block at this time, the first guide tube and the sputum suction tube are in a fixed state. The first guide tube is driven by the third installation tube. When the third installation tube is at the lowest position, the telescopic rod controls the push block to move away from the sputum suction tube, and the sputum suction tube is separated from the first guide rod. At this time, the motor is rotated in the reverse direction, and driven by the motor, the first The guide rod and the third installation tube rotate and rise to the highest position, and then enter the process of rotating downward, completing a pushing cycle. Since the telescopic rod and the first guide rod are fixed on the inner wall of the third installation pipe and are in opposite positions, the telescopic rod can enter the first guide rod through the third opening under any circumstances. When it is necessary to lift the sputum suction tube, push the third installation tube to the lowest position, push the block to fix the sputum suction tube and the first guide tube, and then rotate and rise to complete the extraction process. When the patient is found to have symptoms of discomfort, the motor immediately stops working, and the telescopic rod pushes the push block to block the sputum suction tube to avoid harming the patient. Since the gap between the transmission teeth is larger than the tooth width of the first gear, the first gear plays a role similar to a lever. It can not only avoid the tooth jamming phenomenon caused by rotating downward, but also can play a role through the design of the number of teeth. The role of reduction motor. The top surface of the box and the upper end surface of the second installation pipe play the role of limiting the lifting of the third installation pipe.

As shown in Figures 5 and 6, a fourth opening 24 connecting the first installation pipe 12 and the third installation pipe 16 is provided on the outer wall of the first installation pipe 12. The first installation pipe at the position of the fourth opening 24 One end of the second guide tube 25 is fixedly connected to the inner wall of 12. The other end of the second guide tube 25 extends to the first opening 14 and is connected with one end of the third guide tube 26. The third guide tube 26 is located in the second protective tube sleeve. 6, the other end of the third guide tube 26 passes through and is fixed on the installation plate 27, and can extend into the patient's mouth and nose, and the installation plate 27 is slidably installed in the annular first chute 28; The mask 4 is provided with a fifth opening 29 for installing and communicating with the second protective tube sleeve 6, and the first chute 28 is provided on the mask 4 at the position of the fifth opening 29;

The sputum suction tube 1 can pass through the second guide tube 25 and the third guide tube 26 in sequence, and interference fit therewith.

In this embodiment, the fourth opening, the second guide tube and the third guide tube play a guiding role for the sputum suction tube, which can ensure that the sputum suction tube enters the patient's nasal cavity through the fourth opening, the second guide tube and the third guide tube. Inside. The interference fit between the second guide tube and the third guide tube and the sputum suction tube prevents the sputum suction tube from being reset due to gravity or the like when the push block does not fix the sputum suction tube. When the patient wears the mask, the third guide tube is inserted into the patient's nasal cavity by adjusting the position of the installation plate in the first chute, guiding the sputum suction tube and also providing the patient with the required oxygen.

As shown in Figures 1 and 7, the top surface of the storage tank 2 is provided with a sixth opening 30 and a seventh opening 31 that connect the inside and outside of the storage tank 2. The sixth opening 30 is provided with a hole for installing the sputum suction tube 1. The introduction and installation pipe 32 is also provided with a first access pipe 33 with an internal thread on the top surface of the storage tank 2 at the position of the sixth opening 30. The introduction and installation pipe 32 is located in the first access pipe 33. The first access pipe 33 It can be threadedly connected to the first protection pipe sleeve 5; the top surface of the storage tank 2 at the position of the seventh opening 31 is also provided with a second access pipe 34, and an internal thread is provided in the second access pipe 34. The inlet pipe 34 can be threadedly connected with the sputum suction machine or the first protective pipe sleeve 5;

The storage tank 2 is also provided with an eighth opening 35 that can be used to put the mask. The storage tank 2 at the position of the eighth opening 35 is also provided with a third access pipe 36. The third access pipe 36 and the first The first installation pipe 12 at the position of the opening 14 is provided with internal threads of the same size, and both the third access pipe 36 and the first installation pipe 12 can be threadedly connected to one end of the second protection pipe sleeve 6;

The third access tube 36 is also provided with a tube cover 40 that can close the third access tube 36 .

In this embodiment, after the sputum suction is completed, the medical staff inserts the end of the sputum suction tube into the patient's nasal cavity through the first protective tube cover into the first protective tube cover, then rotates the first protective tube cover, and then takes out the first protective tube cover. While protecting the tube cover, the first protective tube cover is also closed, and then the closed end of the first protective tube cover is rotated and installed at the seventh opening, so that the sputum suction tube will not be exposed to the air throughout the process. In the same way, the mask can also be put into the storage tank through the third access tube and the eighth opening, and finally closed through the tube cover.

As shown in Figure 1, a ninth opening 37 is also provided on the side wall of the box, and one end of the first installation tube 12 away from the first opening 14 is fixed to the box 11 at the position of the ninth opening 37; The device also includes an oxygen supply machine 38 , which is connected to the first installation pipe 12 at the position of the ninth opening 37 through an oxygen pipe 39 .

The oxygen supply machine can provide sufficient oxygen to the patient during the sputum suction process.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present invention can still be modified. Modifications or equivalent substitutions may be made to the specific embodiments, and any modifications or equivalent substitutions that do not depart from the spirit and scope of the invention shall be covered by the scope of the claims of the invention.

Claims (7)

1. The respiratory tract sputum aspirator for infectious disease patient includes sputum aspirator tube (1), storage tank (2) and sputum aspirator, characterized by that, the said apparatus also includes the airtight rotation pushing and pulling mechanism (3) used for pushing or pulling out the sputum aspirator tube (1) by unidirectional rotation and wearing on the patient's face for protecting mask (4); one end of the sputum suction pipe (1) is communicated with the sputum suction machine, the other end of the sputum suction pipe (1) sequentially penetrates through the airtight rotary pushing and sucking mechanism (3) and the mask (4) to extend into the mouth and the nose of a patient suffering from infectious diseases, and the sputum suction pipe (1) is pushed by the rotary pushing and sucking mechanism (3);

the device also comprises a first protective pipe sleeve (5) and a second protective pipe sleeve (6), wherein one end of the first protective pipe sleeve (5) is communicated with the storage tank (2), the other end of the first protective pipe sleeve is communicated with the rotary pushing and pulling mechanism (3), one end of the second protective pipe sleeve (6) is communicated with the rotary pushing and pulling mechanism (3), and the other end of the second protective pipe sleeve is communicated with the mask (4); the first protective pipe sleeve (5) and the second protective pipe sleeve (6) are sleeved outside the sputum suction pipe (1);

the rotary pushing and pulling mechanism (3) comprises a closed box body (11), a first installation tube (12) and a second installation tube (13), wherein the first installation tube (12) and the second installation tube (13) are arranged in the box body (11), the first installation tube (12) is horizontally arranged on the bottom end face in the box body (11), the second installation tube (13) is perpendicular to the first installation tube (12), the bottom end face of the second installation tube (13) is fixedly connected to the outer wall of the first installation tube (12), and the second installation tube (13) is communicated with the first installation tube (12);

a first opening (14) is formed in one side wall of the box body (11), the outer wall of the first installation tube (12) is fixedly connected to the position of the first opening (14) in the box body (11), and one end of the second protection tube sleeve (6) can be installed on the position of the first opening (14) in the box body (11) and is communicated with the first installation tube (12);

a second opening (15) is formed in the top wall of the box body (11), one end of the first protective sleeve (5) can be installed at the position of the second opening (15) in the box body (11), and the top end surface of the second installation tube (13) is located below the second opening (15);

the rotary pushing and pulling mechanism (3) further comprises a third mounting tube (16), an external thread is arranged on the outer wall of the third mounting tube (16), an internal thread is arranged on the inner wall of the second mounting tube (13), and the top of the second mounting tube (13) is in threaded connection with the bottom of the third mounting tube (16); a plurality of transmission teeth (17) are uniformly distributed on the upper part of the outer wall of the third installation tube (16); the height of the transmission teeth (17) is larger than the distance from the third mounting tube (16) to the top end surface of the box body, and the height of the transmission teeth (17) is larger than the heights of the internal threads of the second mounting tube (13) and the external threads of the third mounting tube (16);

the transmission teeth (17) are meshed with the first gear (18), the first gear (18) is arranged on a rotating shaft of the motor (19), the motor (19) is arranged in the box body (11), and the width of each tooth of the first gear (18) is smaller than the distance between two adjacent teeth of the transmission teeth (17);

a first guide tube (20) which can pass through the sputum suction tube (1) is arranged on the central axis of the third mounting tube (16), and the first guide tube (20) is fixedly connected to the inner wall of the third mounting tube (16); a third opening (21) for communicating the inside and the outside of the first guide tube (20) is formed in the tube wall of the first guide tube (20), a pushing block (22) is arranged at the position of the third opening (21), the pushing block (22) can extend into the third opening (21), the pushing block (22) is connected to one end of a telescopic rod (23), and the other end of the telescopic rod (23) is fixedly connected to the inner wall of a third installation tube (16).

2. Respiratory tract sputum aspirator for patients with infectious diseases according to claim 1, characterized in that the sputum aspirator tube (1) comprises a first straw (7) and a second straw (8), the first straw (7) and the second straw (8) are rotationally connected by a rotating sleeve (9), the rotating sleeve (9) is positioned in the first protective sleeve (5).

3. Respiratory tract sputum aspirator for patients with infectious diseases according to claim 2, characterized in that the first (7) or the second (8) aspiration tube contains a bellows (10).

4. Respiratory tract sputum aspirator for patients with infectious diseases according to claim 2, characterized in that the first protective tube sleeve (5) is provided with a space for housing the redundant first suction tube (7) and the second suction tube (8).

5. The respiratory tract sputum aspirator for infectious disease patients according to claim 1, characterized in that the outer wall of the first mounting tube (12) is provided with a fourth opening (24) for communicating the first mounting tube (12) and the third mounting tube (16), the inner wall of the first mounting tube (12) at the position of the fourth opening (24) is fixedly connected with one end of a second guiding tube (25), the other end of the second guiding tube (25) extends to the position of the first opening (14) and is communicated with one end of a third guiding tube (26), the third guiding tube (26) is positioned in a second protecting tube sleeve (6), the other end of the third guiding tube (26) passes through and is fixedly connected on a mounting plate (27) and can extend into the mouth and nose of the patient, and the mounting plate (27) is slidably arranged in an annular first sliding groove (28); a fifth opening (29) for installing and communicating the second protective pipe sleeve (6) is formed in the face mask (4), and the first sliding groove (28) is formed in the face mask (4) at the position of the fifth opening (29);

the sputum aspirator tube (1) can pass through the second guide tube (25) and the third guide tube (26) in turn and is in interference fit with the second guide tube and the third guide tube.

6. The respiratory tract sputum aspirator for infectious disease patients according to claim 5, wherein the top end surface of the storage tank (2) is provided with a sixth opening (30) and a seventh opening (31) which are communicated with the inside and outside of the storage tank (2), an introduction installation tube (32) for installing the sputum aspirator tube (1) is arranged at the position of the sixth opening (30), the top end surface of the storage tank (2) at the position of the sixth opening (30) is also provided with a first access tube (33) with internal threads, the introduction installation tube (32) is positioned in the first access tube (33), and the first access tube (33) can be connected with the first protection tube sleeve (5) in a threaded manner; the top end surface of the storage tank (2) at the position of the seventh opening (31) is also provided with a second access pipe (34), an internal thread is arranged in the second access pipe (34), and the second access pipe (34) can be in threaded connection with the sputum aspirator or the first protective sleeve (5);

the storage tank (2) is also provided with an eighth opening (35) for placing a mask, the storage tank (2) at the position of the eighth opening (35) is also provided with a third access pipe (36), the third access pipe (36) and the first installation pipe (12) at the position of the first opening (14) are both provided with internal threads with the same size, and the third access pipe (36) and the first installation pipe (12) can be in threaded connection with one end of the second protection pipe sleeve (6);

the third access tube (36) is further provided with a tube cover (40) which can close the third access tube (36).

7. The respiratory tract sputum aspirator for infectious disease patients according to claim 1, wherein a ninth opening (37) is further provided on the side wall of the case, and one end of the first mounting tube (12) far from the first opening (14) is fixedly connected to the case (11) at the position of the ninth opening (37);

the device also comprises an oxygen supply machine (38), wherein the oxygen supply machine (38) is communicated with the first mounting tube (12) at the position of the ninth opening (37) through an oxygen tube (39).