CN111388774A

CN111388774A - Closed sputum aspirator

Info

Publication number: CN111388774A
Application number: CN202010339098.9A
Authority: CN
Inventors: 杜娜
Original assignee: Guangzhou Women and Childrens Medical Center
Current assignee: Guangzhou Women and Childrens Medical Center
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-07-10

Abstract

The invention relates to a closed sputum aspirator tube, which comprises a shell, a rotating piece and a tube body. The shell has the chamber that holds, and the shell is equipped with the connecting portion that are used for connecting trachea cannula, and connecting portion are equipped with the jack. The rotating member is provided with an installation part, the installation part is positioned in the containing cavity, and the rotating member can rotate in the containing cavity. The pipe body surrounds the outer surface of the mounting portion. Rotate the rotating member, the rotating member drives the pipe body and rotates, makes a tip of pipe body pass through the jack and gets into trachea cannula from the shell to carry out the clearance of respiratory tract sputum to patient. After the patient finishes sputum suction, the rotating piece is rotated, so that one end part of the tube body retracts into the shell from the trachea cannula and surrounds the rotating piece. Compare in the phlegm pipe of inhaling commonly used, this phlegm pipe is inhaled to closed can insert the suitable position in the trachea cannula with a tip of pipe body through rotating the rotating member, convenient to use, intubate is efficient. And, need not external force and act on the shell and assist the intubate, avoid the damaged gas leakage that leads to of shell, increase of service life.

Description

Closed sputum aspirator

Technical Field

The invention relates to the technical field of medical instruments, in particular to a closed sputum suction tube.

Background

The closed sputum suction tube is a medical auxiliary article commonly used after operation, and is commonly used for cleaning respiratory sputum of severe patients, postoperative patients and patients with weak and weak sputum to keep the respiratory tract smooth. The sputum aspirating tube which is commonly used in clinic is a disposable smooth plastic tube, and a plastic film is sleeved outside the plastic tube. When in use, the plastic tube is moved towards the tracheal cannula at the patient end, and the plastic film forms folds in the process; and straightening the plastic film after the plastic pipe is inserted. By repeatedly using the sputum suction tube in the mode, the plastic film of the sputum suction tube is easy to damage, thereby causing air leakage and having short service life. In addition, the tracheal intubation at the end of the sputum suction tube inserted into the patient is troublesome, inconvenient to use and low in working efficiency.

Disclosure of Invention

Therefore, a sealed sputum aspirator tube is needed, which is convenient to use and high in tube inserting efficiency; in addition, air leakage caused by the damage of the shell can be avoided, and the service life of the sputum suction tube is prolonged.

A closed sputum aspirator tube comprising:

the tracheal cannula comprises a shell, a connecting part and a connecting part, wherein the shell is provided with a containing cavity and is used for connecting the tracheal cannula, and the connecting part is provided with a jack;

the rotating piece is provided with a mounting part, the mounting part is positioned in the accommodating cavity, and the rotating piece can rotate in the accommodating cavity;

the pipe body, the pipe body surround in the surface of installation department, the one end of pipe body is used for passing the jack gets into in the trachea cannula.

In one embodiment, the rotating member includes a first roller and a second roller connected to the first roller, the mounting portion is located on the first roller, and the first roller is located in the accommodating cavity; the shell is provided with a mounting hole matched with the second roller, the second roller is inserted into the mounting hole, one end part, far away from the first roller, of the second roller is located outside the containing cavity, and the second roller can drive the first roller to rotate in the containing cavity.

In one embodiment, the first roller and the second roller are integrally formed, and the diameter of the second roller is smaller than that of the first roller.

In one embodiment, a first channel for communicating the pipe body is transversely arranged in the first roller, and the other end of the first channel is positioned on the side part of the first roller; a second channel is longitudinally arranged in the second roller, one end of the second channel is communicated with one end of the first channel, and a plug-in part is formed on the side wall of the other end of the second channel.

In one embodiment, the sealed sputum aspirator tube further comprises a negative pressure connector, one end of the negative pressure connector is rotatably connected to the insertion part, and the other end of the negative pressure connector is used for being communicated with a negative pressure device.

In one embodiment, the negative pressure joint is provided with a three-way switch, and one end of the negative pressure joint, which is far away from the rotating piece, is provided with a protective cap.

In one embodiment, the closed sputum aspirator further comprises an endotracheal tube, the endotracheal tube is communicated with the shell, and the tube body can extend into the endotracheal tube; the side part of the trachea cannula is provided with a first connecting port used for being communicated with a breathing machine and a second connecting port used for being communicated with a syringe.

In one embodiment, the housing comprises a first housing for accommodating the rotating member and a second housing in a tubular shape, the mounting portion and the insertion hole are arranged at one end of the second housing far away from the first housing, and the second housing is connected with the trachea cannula.

In one embodiment, the shell is a hard shell, or the shell is a silica gel shell; and the shell is a transparent shell, or the shell is a semitransparent shell.

In one embodiment, the end part of the outer ring of the pipe body is provided with a color marking part, and the outer surface of the pipe body is provided with scales.

The shell of the closed sputum suction tube is provided with a containing cavity, the containing cavity is internally provided with a rotating piece, and the tube body is surrounded on the installation part of the rotating piece. During the use, anticlockwise rotation rotating member, rotating member drive pipe body rotates, makes a tip of pipe body move to one side that is close to patient in trachea cannula to carry out the clearance of respiratory tract sputum, make patient's respiratory track keep unblocked. After the sputum suction of the patient is finished, the rotating piece is rotated clockwise, one end part of the tube body moves towards one end far away from the patient in the trachea cannula, and the tube body retreats to the shell to surround the mounting part of the rotating piece. Compare in inhaling the phlegm pipe clinically commonly used, this phlegm pipe is inhaled to closed can insert the suitable position in the trachea cannula with the pipe body through rotating the rotating member, convenient to use, intubate is efficient. And, need not external force and act on the shell and assist the intubate, avoid the gas leakage that the shell damage leads to, inhale the phlegm pipe like this and be in airtight state, avoid patient's respiratory tract infection's phenomenon and hypoxemia to can prolong the life of inhaling the phlegm pipe, reduce the cost of changing and inhaling the phlegm pipe.

Drawings

FIG. 1 is a schematic view of a closed sputum aspirator tube according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a closed sputum aspirator tube with a negative pressure joint mounted on a rotating member according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a housing of a sealed sputum aspirator tube according to an embodiment of the present invention.

Description of the drawings:

10. the shell, 11, hold the chamber, 12, first casing, 121, mounting hole, 13, second casing, 131, connecting portion, 20, rotating member, 21, first roller bearing, 211, installation department, 212, first passageway, 22, second roller bearing, 221, second passageway, 222, grafting portion, 30, pipe body, 31, color mark portion, 40, negative pressure joint, 41, three way switch, 42, helmet, 50, trachea cannula, 51, first interface, 52, second connector.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view illustrating a sealed sputum aspirator according to an embodiment of the present invention, and fig. 2 is a schematic structural view illustrating a negative pressure connector of the sealed sputum aspirator according to an embodiment of the present invention mounted on a rotating member. The closed sputum aspirator tube according to an embodiment of the present invention includes a housing 10, a rotating member 20, and a tube body 30. The housing 10 has a receiving cavity 11, the housing 10 is provided with a connecting portion 131 for connecting the endotracheal tube 50, and the connecting portion 131 is provided with an insertion hole. The rotary member 20 is provided with a mounting portion 211, the mounting portion 211 is located in the accommodating chamber 11, and the rotary member 20 can rotate in the accommodating chamber 11. The tube body 30 surrounds the outer surface of the mounting portion 211, and one end of the tube body 30 is used for passing through the insertion hole into the endotracheal tube 50.

In the sealed sputum aspirator described above, the housing 10 has the housing chamber 11, the rotary 20 is disposed in the housing chamber 11, and the tube body 30 is wound around the mounting portion 211 of the rotary 20. During the use, anticlockwise rotation rotating member 20, rotating member 20 drives pipe body 30 and rotates, makes a tip of pipe body 30 remove to one side that is close to patient in trachea cannula 50 to carry out the clearance of respiratory tract sputum, make patient's respiratory track keep unblocked. After the patient finishes sucking the sputum, the rotating member 20 is rotated clockwise, one end of the tube body 30 moves in the endotracheal tube 50 to the end far away from the patient, and the tube body 30 retreats back into the housing 10 to surround the mounting portion 211 of the rotating member 20. Compare in the sputum aspirator that clinical commonly used, this sputum aspirator of closed can insert the suitable position in trachea cannula 50 with pipe body 30 through rotating member 20, convenient to use, the intubate is efficient. In addition, external force is not needed to act on the shell 10 to assist the intubation, the shell 10 is prevented from being damaged, the sputum suction tube is in a closed state, the respiratory tract infection and hypoxemia of a patient are avoided, the service life of the sputum suction tube can be prolonged, and the cost for replacing the sputum suction tube is reduced.

In one embodiment, referring to fig. 1 to 3, fig. 1 shows a schematic structural view of a sealed sputum aspirator according to an embodiment of the present invention, fig. 2 shows a schematic structural view of a negative pressure connector of the sealed sputum aspirator according to an embodiment of the present invention mounted on a rotating member, and fig. 3 shows a schematic structural view of a housing of the sealed sputum aspirator according to an embodiment of the present invention. The rotating member 20 includes a first roller 21 and a second roller 22, and the second roller 22 is connected to the first roller 21. It is understood that the first roller 21 and the second roller 22 are in a relatively stationary state. The mounting portion 211 is located on the first roller 21, and the first roller 21 is disposed in the accommodating chamber 11. The housing 10 is provided with a mounting hole 121 adapted to the second roller 22, the second roller 22 is inserted into the mounting hole 121, one end of the second roller 22 away from the first roller 21 is located outside the accommodating cavity 11, and the first roller 21 can be driven to rotate in the accommodating cavity 11 by rotating the second roller 22. When the trachea cannula is used, the second roller 22 rotates anticlockwise, the second roller 22 drives the first roller 21 and the tube body 30 arranged on the first roller 21 to rotate, one end of the tube body 30 moves towards one side close to a patient in the trachea cannula 50, so that sputum of a respiratory tract is cleaned, and the respiratory tract of the patient is kept smooth. After the patient finishes sucking the sputum, the second roller 22 is rotated clockwise, one end of the tube body 30 moves in the endotracheal tube 50 to the end far away from the patient, and the tube body 30 retreats back into the housing 10 to surround the mounting portion 211 of the first roller 21. Compare in the sputum aspirator that clinical commonly used, this sputum aspirator of closed can insert the suitable position in trachea cannula 50 with pipe body 30 through rotating member 20, convenient to use, the intubate is efficient.

Further, the first roller 21 and the second roller 22 are integrally molded. When the second roller 22 is rotated, the first roller 21 is rotated by the second roller 22 due to the integral formation of the first roller 21 and the second roller 22, and the tube body 30 wound around the first roller 21 is driven to move toward or away from the patient in the endotracheal tube 50. In other embodiments, the first roller 21 may be detachably connected to the second roller 22 by screws or the like, on one hand, rotating the second roller 22 can drive the first roller 21 and the tube body 30 to rotate, so that the end of the tube body 30 moves toward or away from the patient in the endotracheal tube 50; on the other hand, the first roller 21 and the second roller 22 are detachably connected, so that the first roller 21 and the second roller 22 can be easily replaced.

In one embodiment, please refer to fig. 1 and 2, fig. 1 shows a schematic structural view of a sealed sputum aspirator according to an embodiment of the present invention, and fig. 2 shows a schematic structural view of a negative pressure joint of the sealed sputum aspirator according to an embodiment of the present invention mounted on a rotating member. The diameter of the first roller 21 is larger than the diameter of the second roller 22. Because the diameter of the first roller 21 is greater than that of the second roller 22, the number of turns of the pipe body 30 wound around the first roller 21 is reduced, so that the pipe body 30 wound around the first roller 21 is prevented from being disordered, and the first roller 21 and the second roller 22 can rotate more flexibly. Of course, in other embodiments, the diameters of the first roller 21 and the second roller 22 may be equal, or the diameter of the first roller 21 is smaller than the diameter of the second roller 22.

Further, the thickness of the first roller 21 is larger than the outer diameter of the pipe body 30, so that the pipe body 30 is conveniently wound around the outer surface of the first roller 21, and the pipe body 30 is prevented from slipping off the first roller 21, thereby stably winding the pipe body 30 around the outer surface of the first roller 21.

In one embodiment, a first position-limiting table and a second position-limiting table are disposed on a side portion of the first roller 21, the first position-limiting table is disposed on an end of the first roller 21 close to the second roller 22, and the second position-limiting table is disposed on an end of the first roller 21 away from the second roller 22. When the tube body 30 is wound around the outer surface of the first roller 21, the first and second limiting tables prevent the tube body 30 from slipping off the first roller 21. Of course, in other embodiments, the first limiting blocks may be replaced by a plurality of first limiting blocks, and the plurality of first limiting blocks are arranged at intervals along the circumferential direction of the first roller 21; the second limiting blocks can be replaced by a plurality of second limiting blocks which are arranged at intervals along the circumferential direction of the first rolling shaft 21.

In one embodiment, please refer to fig. 1 and 2, fig. 1 shows a schematic structural view of a sealed sputum aspirator according to an embodiment of the present invention, and fig. 2 shows a schematic structural view of a negative pressure joint of the sealed sputum aspirator according to an embodiment of the present invention mounted on a rotating member. A first channel 212 for communicating the pipe body 30 is transversely provided in the first roller 21, and one end of the first channel 212 is located at a side portion of the first roller 21. A second channel 221 is longitudinally arranged in the second roller 22, one end of the second channel 221 is communicated with the other end of the first channel 212, and a plug-in part 222 is formed on the side wall of the other end of the second channel 221. It is understood that the second channel 221 is arranged along the axial direction of the second roller 22; one end of the first channel 212 is located at the side of the first roller 21, the first channel 212 extends in the diameter direction of the first roller 21, and the other end of the first channel 212 communicates with the second channel 221 in the second roller 22. In use, one end of the tube body 30 is in communication with the first channel 212 and the second channel 221 is in communication with the negative pressure device, such that the negative pressure device is in communication with the endotracheal tube 50 via the second channel 221, the first channel 212 and the tube body 30. The negative pressure equipment is opened, and the sputum of the respiratory tract of the patient can be cleaned under the action of negative pressure, so that the respiratory tract of the patient is kept smooth.

Further, referring to fig. 1 and 2, fig. 1 shows a schematic structural view of a sealed sputum aspirator according to an embodiment of the present invention, and fig. 2 shows a schematic structural view of a negative pressure joint of the sealed sputum aspirator according to an embodiment of the present invention mounted on a rotating member. The closed sputum aspirator tube further comprises a negative pressure connector 40, one end of the negative pressure connector 40 is rotatably connected with the insertion part 222, and the other end of the negative pressure connector 40 is used for communicating negative pressure equipment. The negative pressure equipment is communicated with the tracheal intubation 50 through the negative pressure joint 40, the second channel 221, the first channel 212 and the tube body 30, and the negative pressure equipment is opened, so that the sputum of the respiratory tract of the patient can be cleaned under the action of negative pressure, and the respiratory tract of the patient is kept smooth.

Specifically, the insertion portion 222 is provided with a convex ring, and one end of the negative pressure connector 40 is correspondingly provided with a sliding groove. It can be understood that the convex ring is disposed on the outer surface of the insertion part 222, and the sliding groove is correspondingly disposed on the inner surface of the negative pressure connector 40; alternatively, the convex ring is disposed on the inner surface of the insertion portion 222, and the sliding groove is correspondingly disposed on the outer surface of the negative pressure connector 40. When the negative pressure connector 40 is connected to the insertion part 222 of the rotating member 20, the convex ring of the insertion part 222 is rotatably disposed in the sliding groove of the negative pressure connector 40. When the rotating member 20 is rotated, the insertion part 222 rotates relative to the negative pressure connector 40, so that the tube body 30 moves toward or away from the patient side in the endotracheal tube 50, and the insertion part 222 does not disengage from the negative pressure connector 40. Of course, in other embodiments, one end of the negative pressure connector 40 is provided with a convex ring, and the insertion part 222 is correspondingly provided with a sliding groove, for example, the convex ring is arranged on the inner surface of the negative pressure connector 40, and the sliding groove is arranged on the outer surface of the insertion part 222; alternatively, the convex ring is disposed on the outer surface of the negative pressure connector 40, and the sliding groove is disposed on the inner surface of the insertion part 222.

In one embodiment, please refer to fig. 1 and 2, fig. 1 shows a schematic structural view of a sealed sputum aspirator according to an embodiment of the present invention, and fig. 2 shows a schematic structural view of a negative pressure joint of the sealed sputum aspirator according to an embodiment of the present invention mounted on a rotating member. The negative pressure joint 40 is provided with a three-way switch 41. When sputum suction is needed, the three-way switch 41 is opened, and the negative pressure equipment is communicated with the tracheal intubation 50 through the second channel 221, the first channel 212 and the tube body 30. Under the action of negative pressure, the sputum in the respiratory tract of the patient can be cleaned, so that the respiratory tract of the patient is kept smooth. After the sputum suction is finished, the three-way switch 41 is closed, the sputum suction action can be stopped, and the sputum suction device is simple in structure and easy to operate.

Further, referring to fig. 1 and 2, fig. 1 shows a schematic structural view of a sealed sputum aspirator according to an embodiment of the present invention, and fig. 2 shows a schematic structural view of a negative pressure joint of the sealed sputum aspirator according to an embodiment of the present invention mounted on a rotating member. The end of the negative pressure connection 40 remote from the rotary member 20 is provided with a protective cap 42. Optionally, the protective cap 42 is made of silica gel. Through set up helmet 42 in the one end at negative pressure joint 40, under the condition that does not use negative pressure equipment, helmet 42 can block external matters such as dust and get into negative pressure joint 40 in, guarantee the normal clear-up of sputum suction tube sputum.

In one embodiment, please refer to fig. 1 and 2, fig. 1 shows a schematic structural view of a sealed sputum aspirator according to an embodiment of the present invention, and fig. 2 shows a schematic structural view of a negative pressure joint of the sealed sputum aspirator according to an embodiment of the present invention mounted on a rotating member. The closed sputum suction tube further comprises a tracheal cannula 50, the tracheal cannula 50 is communicated with the shell 10, and the tube body 30 can extend into the tracheal cannula 50. The rotating part 20 is rotated counterclockwise, the rotating part 20 drives the tube body 30 to rotate, so that one end part of the tube body 30 moves towards one side close to the patient in the tracheal cannula 50, the sputum of the respiratory tract of the patient is cleaned, and the respiratory tract of the patient is kept smooth. After the patient finishes sucking the sputum, the rotating member 20 is rotated clockwise, one end of the tube body 30 moves in the endotracheal tube 50 to the end far away from the patient, and the tube body 30 retreats back into the housing 10 to surround the mounting portion 211 of the rotating member 20. Compared with a sputum suction tube which is commonly used clinically, the closed sputum suction tube can insert the tube body 30 into the proper position in the tracheal intubation 50 by rotating the rotating piece 20, and is convenient to use and high in intubation efficiency.

Further, referring to fig. 1 and 2, fig. 1 shows a schematic structural view of a sealed sputum aspirator according to an embodiment of the present invention, and fig. 2 shows a schematic structural view of a negative pressure joint of the sealed sputum aspirator according to an embodiment of the present invention mounted on a rotating member. The side of the endotracheal tube 50 is provided with a first connection port 51 for communicating with a ventilator and a second connection port 52 for communicating with a syringe. When the sputum in the respiratory tract of the patient is more and affects the normal breathing of the patient, the respirator is connected to the first connecting port 51 of the tracheal cannula 50 when the sputum is cleared, and the patient is assisted to breathe by the respirator. When the auxiliary liquid medicine is needed to clean the sputum of the patient, the syringe containing the liquid medicine is mounted on the second connection port 52, for example, the syringe contains the humidification liquid for humidifying the sputum, and the syringe is pushed to make the liquid medicine in the syringe enter the respiratory tract of the patient.

In one embodiment, please refer to fig. 1 and 3, in which fig. 1 shows a schematic structural diagram of a sealed sputum aspirator according to an embodiment of the present invention, and fig. 3 shows a schematic structural diagram of a housing of the sealed sputum aspirator according to an embodiment of the present invention. The housing 10 includes a first housing 12 for accommodating the rotary member 20 and a second housing 13 having a tubular shape, the mounting portion 211 and the insertion hole are disposed at an end of the second housing 13 away from the first housing 12, and the second housing 13 is connected to the endotracheal tube 50. It is understood that the first housing 12 and the second housing 13 are integrally formed, and the first housing 12 and the second housing 13 communicate. When the device is used, the rotating part 20 is arranged in the accommodating cavity 11 of the first shell 12, and the rotating part 20 is rotated anticlockwise, so that one end part of the tube body 30 moves towards one side close to a patient in the tracheal intubation 50, and sputum of the patient can be cleaned conveniently. After the sputum is cleared, the rotating member 20 is rotated clockwise, so that one end of the tube body 30 moves to a side far away from the patient in the endotracheal tube 50. In the present embodiment, the first housing 12 has a circular structure, and the second housing 13 has a tubular structure. Of course, in other embodiments, the first housing 12 may also have a square structure, an oval structure, and the like, without being limited thereto.

Further, the housing 10 is a transparent housing, or the housing 10 is a translucent housing. Since the housing 10 is transparent or translucent, it is convenient to observe the movement of the pipe body 30 around the rotary member 20 during the rotation of the rotary member 20.

Specifically, the housing 10 is a hard housing, or the housing 10 is a silicone housing. Compared with the common clinical sputum suction tube, the hard shell or the silica gel shell is not easy to damage, and the service life of the sputum suction tube is prolonged. In addition, the hard shell or the silica gel shell is not easy to damage, so that the tube body 30 can be effectively protected, the sputum suction tube is in a closed state, and the respiratory tract infection and hypoxemia of a patient are avoided.

In one embodiment, please refer to fig. 1, fig. 1 shows a schematic structural diagram of a sealed sputum aspirator tube according to an embodiment of the present invention. The end of the outer ring of the pipe body 30 is provided with a color marking portion 31. By rotating the rotary member 20, one end portion of the tube body 30 is moved to the side close to the patient in the endotracheal tube 50. Since the end of the tube body 30 is provided with the color marking part 31, the tube body 30 is prevented from being excessively forced to exit from the insertion hole of the second housing 13; the outer surface of the tube body 30 is provided with scales so that the medical staff can clearly know the length of the tube body 30 inserted into the endotracheal tube 50, and the medical staff can adjust the number of rotation turns of the rotary member 20.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A closed sputum aspirator tube, comprising:

2. The closed sputum aspirator according to claim 1, wherein the rotating member comprises a first roller and a second roller connected to the first roller, the mounting portion is located on the first roller, and the first roller is located in the receiving chamber; the shell is provided with a mounting hole matched with the second roller, the second roller is inserted into the mounting hole, one end part, far away from the first roller, of the second roller is located outside the containing cavity, and the second roller can drive the first roller to rotate in the containing cavity.

3. The sealed sputum aspirator of claim 2, wherein the first roller and the second roller are integrally formed, and the diameter of the second roller is smaller than the diameter of the first roller.

4. The closed sputum aspirator according to claim 2, wherein a first channel for communicating with the tube body is transversely provided in the first roller, and one end of the first channel is located at a side portion of the first roller; a second channel is longitudinally arranged in the second roller, one end of the second channel is communicated with the other end of the first channel, and a plug-in part is formed on the side wall of the other end of the second channel.

5. The sealed sputum aspirator of claim 4, further comprising a negative pressure connector, wherein one end of the negative pressure connector is rotatably connected to the insertion part, and the other end of the negative pressure connector is used for communicating a negative pressure device.

6. A closed sputum aspirator according to claim 5, wherein the negative pressure connector is provided with a three-way switch, and a protective cap is provided at an end of the negative pressure connector away from the rotary member.

7. The hermetic sputum aspirator of any one of claims 1 to 6, further comprising an endotracheal tube communicating with the housing, the tube body being capable of extending into the endotracheal tube; the side part of the trachea cannula is provided with a first connecting port used for being communicated with a breathing machine and a second connecting port used for being communicated with a syringe.

8. The hermetic sputum aspirator of claim 7, wherein the housing comprises a first housing for placing the rotation member and a second housing in a tubular shape, the mounting portion and the insertion hole are disposed at an end of the second housing away from the first housing, and the second housing is connected to the endotracheal tube.

9. The closed sputum aspirator according to any one of claims 1 to 6, wherein the housing is a rigid housing, or the housing is a silicone housing; and the shell is a transparent shell, or the shell is a semitransparent shell.

10. A closed sputum aspirator according to any one of claims 1 to 6, wherein the tube body has a color mark at an end of an outer ring thereof and scales on an outer surface thereof.