CN213312181U

CN213312181U - Visual phlegm suction device suitable for trachea cannula patient

Info

Publication number: CN213312181U
Application number: CN202021380272.6U
Authority: CN
Inventors: 钟国庆; 宋水贞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-06-01
Anticipated expiration: 2030-07-14

Abstract

The utility model relates to a visual sputum suction device suitable for patients with trachea cannula, which comprises a sputum suction tube body, a tracheal catheter, a protection part, a three-way valve and a negative pressure suction part; the front end of the sputum suction tube body is of an arc-shaped bending structure of 10-30 degrees, and the outer surface of the arc-shaped bending structure is provided with a wide-angle lens; the protective part comprises a protective cover, a connecting pipe, a connecting part and a protective pipe; the front end of the connecting pipe is connected with the top end inside the protective cover, and the tail end of the connecting pipe is connected with the tracheal catheter; still be equipped with the trompil of a plurality of structures of going up to one side around the connecting pipe anterior segment surface, the trompil surface all is equipped with the one deck filter screen. Its advantages are: through the protective cover and the connecting pipe, secretion of a patient can be prevented from being splashed to a far place, pollution sources of a diseased area are reduced, hand or face infection of medical staff is avoided, and occupational exposure of the medical staff is reduced; simultaneously, the pipe is put into conveniently, and has the accurate visual function of gettering of sputum dilution and sputum.

Description

Visual phlegm suction device suitable for trachea cannula patient

Technical Field

The utility model belongs to the technical field of the medical appliances technique and specifically relates to a visual phlegm suction device suitable for trachea cannula patient.

Background

Sputum aspiration and sputum specimen sampling are currently a basic task in clinical practice. In clinical work, the route and location of sputum aspiration can be divided into oral, tracheal and bronchial areas. For a patient with trachea cannula, sputum suction is mainly realized by inserting a tracheal catheter through a sputum suction pipe to reach the trachea and the bronchus and sucking by using external negative pressure, but it needs to be noted that the (bronchus) is a very sensitive organ of a human body, dense nerve branches are distributed on the surface of the (bronchus) and severe choking cough can be caused by any stimulation, which is a protective reflex of the human body, according to the physiological and anatomical principles of the human body, huge intrapulmonary pressure can be generated in the lung when the cough is choked, when pressure drives the cough, secretions of a plurality of airways and the lung can be sprayed out, some secretions can be sprayed out for several meters away, great infection hidden dangers are caused for clinical care and infection prevention, and the choking time point of the patient has unpredictability, at present, clinical staff mostly adopt a mode of avoiding the outlet spraying of the catheter when the cough, which can not completely avoid medical care occupational exposure at first, secondly, the high impact forces with which secretions are ejected elsewhere in the office pose a significant risk of cross-infection, particularly in patients with infectious diseases or latent diseases and other infectious diseases, which is self-evident, and in patients with severe infections with long latent periods. Simultaneously, among the clinical work, generally all inhale the phlegm operation through the mode of taking blind sight to unable accurate absorbing the sputum, reduced the effect and the efficiency of inhaling the phlegm, repeated blind is inhaled and has still increased the damage probability of air flue mucous membrane, in addition, to the sputum of scabbing, through current phlegm operation mode of inhaling and inhale the phlegm pipe, then can't carry out effectual absorption. Therefore, the sputum suction device which has the functions of protection and visualization during sputum suction and has accurate sputum suction, dilution and sampling has great significance, and especially has great value in protecting medical care personnel and reducing cross infection during the epidemic situation period of the major infectious diseases.

Chinese patent documents: CN201020549792.5, application date 2010.09.30, patent names: a sputum aspirator. Discloses a sputum suction device, which comprises a tube body and a sputum suction channel arranged on the tube body, wherein: the tube body is provided with an observation cavity and an oxygen injection channel; the port of the observation cavity at the sputum suction end of the tube body is transparent and closed, a miniature camera or an optical fiber is arranged in the observation cavity, and the other end of the miniature camera or the optical fiber is connected with the signal output end of the visual device.

Chinese patent documents: CN201520154476.0, application date 2015.03.18, patent names: a visual multipurpose sputum aspirator. Discloses a visual multipurpose sputum aspirator, which comprises a tube body with a hollow inner cavity, wherein the front end of the tube body is provided with a hollow opening communicated with the hollow inner cavity; the suction connector is internally provided with a suction connector inner cavity, the suction connector inner cavity is communicated with the hollow inner cavity to form a movable cavity, and one end of an inner core extends into the movable cavity and can move on the movable cavity. When the trachea cannula is used for general anesthesia or emergency treatment, the sputum suction tube of the utility model is placed into the tracheal catheter for molding, thereby facilitating the cannula insertion.

In the sputum suction device disclosed in the patent document CN201020549792.5, the observation cavity is provided with the miniature camera or the optical fiber, and the other end of the miniature camera or the optical fiber is connected with the signal output end of the visual device, because of the three-cavity structure, the sputum suction process is simplified, the work efficiency of nursing staff is improved, the pain of a patient is relieved, and the medical cost of the patient is reduced; in the visible multipurpose sputum aspirator of patent document CN201520154476.0, after the trachea cannula is successfully inserted, the inner core can be pulled out, and the miniature camera device is used to monitor and judge the position of the catheter, observe the conditions of secretion, foreign matters, blood and the like staying at the mucosa of the respiratory tract, and to perform suction and removal through the movable cavity, so that the visible multipurpose sputum aspirator has the advantages of low cost, convenient operation, wide application, visualization and the like. However, the sputum aspirating tubes in the above two patent documents have an advantage of visual operation, but do not have a protective function, and thus have a great risk of infection.

In summary, there is a need for a visual sputum aspirator suitable for endotracheal intubation patients, which can avoid increasing the infection source of the affected area, reduce the occupational exposure of the medical care personnel, and is convenient for the catheter to be placed in, and has the functions of sputum dilution, accurate and visual sputum dilution and sampling. However, there is no report on this device.

Disclosure of Invention

The utility model aims at overcoming prior art's is not enough, provides one kind and can avoid increasing the source of infection of ward, reduces medical personnel occupation and exposes, and simultaneously, the pipe is put into conveniently, and has the accurate visual phlegm device of inhaling of diluting with the sputum of being applicable to trachea cannula patient of sputum dilution, sampling function.

In order to achieve the purpose, the utility model adopts the technical proposal that:

a visual sputum suction device suitable for a patient with a tracheal cannula comprises a sputum suction tube body, a tracheal catheter, a protection part, a three-way valve and a negative pressure suction part; the front end of the sputum suction tube body is of an arc-shaped bending structure, and the outer surface of the arc-shaped bending structure is provided with a wide-angle lens; the end of the tracheal catheter is provided with a connector; the protective part comprises a protective cover, a connecting pipe, a connecting part and a protective pipe; the connecting pipe is of a cylindrical hollow structure, the front end of the connecting pipe is connected with the top end in the protective cover, and the tail end of the connecting pipe extends to the outer side of the protective cover and is connected with an interface at the tail end of the tracheal catheter; a plurality of obliquely upward structural openings are further formed around the surface of the front section of the connecting pipe, and a layer of filter screen is arranged on the outer surface of each opening; the connecting part is arranged at the top of the outer side of the protective cover, and a hanging lug is arranged on one side of the connecting part; the protective pipe is arranged at the top of the connecting part; the tracheal catheter and the protective part are sleeved on the periphery of the sputum suction catheter body, and the inner diameter of the protective tube is matched with the outer diameter of the sputum suction catheter body; two ends of the three-way valve are respectively connected with the tail end of the sputum suction pipe body and the negative pressure suction part; the three-way valve is provided with a hook, and an elastic telescopic belt is connected between the hook and the hanging lug.

As a preferable technical scheme, the arc-shaped bending angle of the front end of the sputum suction tube body is 10-30 degrees, and a plurality of side holes are formed around the top of the sputum suction tube body.

As a preferred technical scheme, the tail end of the sputum suction tube body is provided with a connector connected with the wide-angle lens through a connecting wire, and the connector is a USB connector or an HDMI connector.

As a preferred technical scheme, the protective cover is of a semi-cylindrical hollow structure, and the bottom opening faces the front end of the sputum suction tube body.

As a preferable technical scheme, the diameter of the protective cover is 4cm-8cm, and the height of the protective cover is 3cm-10 cm.

As a preferable technical scheme, the distance of the tail end of the connecting pipe extending to the outer side of the protective cover is 2cm-5 cm.

As a preferred technical scheme, 3-8 obliquely upward structural openings are formed around the surface of the front section of the connecting pipe, and the diameters of the openings are 3-6 mm.

As a preferable technical proposal, the inner diameter of the protective tube and the outer diameter of the sputum suction tube body are in a friction fit sliding mode; the front end of the connecting pipe and the top end inside the protective cover are in a threaded connection structure.

As a preferable technical scheme, one side of the negative pressure suction part is provided with a negative pressure adjusting hole, and the tail end of the negative pressure suction part is a central negative pressure interface.

As a preferred technical scheme, a thin steel wire is arranged in the inner wall of the tail section of the sputum suction tube body, and the wide-angle lens is arranged at the position below the side hole at the front end of the sputum suction tube body.

The utility model has the advantages that:

1. through the design that inhales phlegm pipe body front end and be 10-30 arc bending structures, be convenient for inhale the phlegm pipe originally and put into the back, make things convenient for the rotation regulation to inhale phlegm pipe body front end position to improve and inhale phlegm precision and efficiency, thereby improve and inhale phlegm efficiency, and locate a plurality of side openings around inhaling phlegm pipe body top and then be favorable to improving and inhale phlegm volume and inhale the unobstructed degree of phlegm, can prevent to inhale phlegm pipe body top simultaneously and block up.

2. The wide-angle lens of locating arc bending structure surface can inhale behind the external display device of USB joint of phlegm pipe body end, will inhale the phlegm pipe body front end and show on display device clearly around the condition to be convenient for medical personnel accurate absorb or dilute the sputum, avoided under the blind operation mode, the problem of sputum absorption inefficiency and air flue mucous membrane damage, thereby improve the effect and the efficiency that the sputum absorbs.

3. The trompil of the structure that goes up to one side that is equipped with around the connecting pipe anterior segment surface can make the airtight back air flue of endotracheal tube inside and outside atmospheric pressure communicate with each other, prevents that patient's air flue is inside to increase the atelectasis and takes place owing to inhale phlegm negative pressure suction effect, in addition, through the filter screen of locating the trompil surface, can effectively stop or filter harmful gas and secretion, especially to the period of serious infectious disease epidemic situation, can greatly protect medical personnel and reduce cross infection and take place, reduce the source of infection in ward.

4. For friction fit sliding mode between the protective tube internal diameter and the phlegm pipe body external diameter of inhaling, alright inhale the phlegm pipe body and put into the back, adjust about and inhale phlegm pipe body position, in addition, through the design of protective tube diameter appearance pipeline, be favorable to inhaling phlegm pipe body and carry stability, prevent to buckle.

5. Through the design of protective part, when inhaling the phlegm, can shelter from patient because of chocking the sputum and other liquid that cough reaction spun through protection casing and connecting pipe to avoid medical personnel's occupation to expose and the sick area to pollute the scheduling problem.

6. Can be to inhaling the inside water injection, injection or sample chemical examination operation that carries out of phlegm pipe body through locating the terminal three-way valve of phlegm pipe body, be convenient for when meetting the thick sputum that is difficult for the suction, dilute the sputum through normal saline's effect, and dilute the position location accuracy to make things convenient for suction, sample accuracy, the injection medicine then can be used to play (bronchus) treatment effect.

7. Through the design of being connected between adapting unit and three-way valve and being equipped with the elastic expansion band, be convenient for adjust from top to bottom and inhale the position of phlegm pipe and protective member, can avoid protective member to drop simultaneously.

8. The negative pressure component and the three-way valve are of an integrated structure, the central negative pressure interface at the tail end of the negative pressure component is externally connected with the negative pressure suction device, so that sputum can be sucked by utilizing the sputum suction pipe body, the negative pressure adjusting hole on the side edge can be pressed by fingers, and the negative pressure can be adjusted, and the use is convenient.

9. The thin steel wire is arranged in the inner wall of the tail end of the sputum suction tube body, so that the sputum suction tube body can be prevented from being bent in the process of being put in, and the wide-angle lens is arranged at the position below the side hole of the front end of the sputum suction tube body, so that the design or manufacturing difficulty can be reduced.

10. The connecting pipe is in a threaded connection structure design between the front end of the connecting pipe and the top end inside the protective cover, so that the protective cover and the connecting pipe are conveniently detached and connected, and meanwhile, the protective parts are conveniently cleaned.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of the visual sputum suction device applicable to the trachea cannula patients.

Fig. 2 is a top view of the visual sputum aspirator suitable for trachea cannula patients.

Fig. 3 is a schematic surface view of a connecting pipe of the visual sputum suction device for the trachea cannula patient of the utility model.

Fig. 4 is a plan view of the visual sputum aspirator suitable for the trachea cannula patient of the utility model.

Fig. 5 is a plan view of another visual sputum aspirator suitable for trachea cannula patients.

Detailed Description

The invention will be further described with reference to the following examples and with reference to the accompanying drawings.

The reference numerals and components referred to in the drawings are as follows:

1. sputum aspirator body 11 wide-angle lens

111. Connecting wire 112, joint

12. Side hole 2. tracheal catheter

21. Catheter body 211, graduation lines

22. Air bag 23. interface

24. Inflation valve 25. inflation tube

3. Protective part 31, protective cover

32. Connecting pipe 321 with hole

322. Filter screen 33 connecting part

331. Hanger 34 protective tube

35. Elastic telescopic belt 4. three-way valve

41. Hook 5. negative pressure suction part

51. Negative pressure regulating hole 52 central negative pressure interface

Example 1

Please refer to fig. 1-3, fig. 1 is a schematic view of a three-dimensional structure of a visual sputum suction apparatus for a patient with trachea cannula according to the present invention, fig. 2 is a plan view of a visual sputum suction apparatus for a patient with trachea cannula according to the present invention, fig. 3 is a schematic view of a surface of a connecting pipe of a visual sputum suction apparatus for a patient with trachea cannula according to the present invention. A visual sputum suction device suitable for a patient with a tracheal cannula comprises a sputum suction tube body 1, a tracheal catheter 2, a protection component 3, a three-way valve 4 and a negative pressure suction component 5; the front end of the sputum suction tube body 1 is of an arc-shaped bending structure of 10 degrees to 30 degrees, the outer surface of the arc-shaped bending structure is provided with a wide-angle lens 11, a plurality of side holes 12 are arranged around the top of the sputum suction tube body 1, and the tail end of the sputum suction tube body is provided with a connector 112 connected with the wide-angle lens 11 through a connecting wire 111; the tracheal catheter 2 comprises a catheter body 21, an air bag 22, a connector 23 and an inflation valve 24; the surface of the tracheal catheter body 1 is provided with scale marks 211; the air bag 22 is arranged at the front section of the catheter body 21, the interface 23 is arranged at the tail end of the catheter body 21, and the inflation valve 24 is connected with an inflation tube 25 extending out of the tube wall at the tail section of the catheter body 21; the protective component 3 comprises a protective cover 31, a connecting pipe 32, a connecting component 33 and a protective pipe 34; the protective cover 31 is of a semi-cylindrical hollow structure, and the bottom opening faces the front end of the sputum suction tube body 1; the connecting pipe 32 is a cylindrical hollow structure, the front end of the connecting pipe is connected with the top end inside the protective cover 31, and the tail end of the connecting pipe extends to the outer side of the protective cover 31 and is connected with the interface 23 at the tail end of the tracheal catheter 2; a plurality of holes 321 with an inclined upward structure are further formed around the front section surface of the connecting pipe 32, and a layer of filter screen 322 is arranged on the outer surface of each hole 321; the connecting part 33 is arranged at the top of the outer side of the protective cover 31, and a hanging lug 331 is arranged at one side of the connecting part 33; the protective tube 34 is arranged at the top of the connecting part 33; the tracheal catheter 2 and the protective component 3 are sleeved on the periphery of the sputum suction catheter body 1, and the inner diameter of the protective tube 34 is matched with the outer diameter of the sputum suction catheter body 1; two ends of the three-way valve 4 are respectively connected with the tail end of the sputum suction pipe body 1 and the negative pressure suction part 5; a hook 41 is arranged on the three-way valve 4, and an elastic telescopic belt 35 is connected between the hook 41 and the hanging lug 331; one side of the negative pressure suction part 5 is provided with a negative pressure adjusting hole 51, and the tail end is a central negative pressure interface 52.

It should be noted that: the tracheal catheter 2 and the protective component 3 are both sleeved on the periphery of the sputum suction catheter body 1, so that the tracheal catheter is placed in the sputum suction catheter to suck sputum and simultaneously the protective function is played; the front end of the sputum suction pipe body 1 is designed to be of a 10-30-degree arc-shaped bending structure, so that the front end of the sputum suction pipe body 1 can be conveniently rotated and adjusted after the sputum suction pipe body 1 is placed in the sputum suction pipe, the sputum suction accuracy and efficiency are improved, the plurality of side holes 12 arranged around the top of the sputum suction pipe body 1 are beneficial to improving the sputum suction amount and the smoothness of sputum suction, and meanwhile, the top end of the sputum suction pipe body 1 can be prevented from being blocked; the wide-angle lens 11 arranged on the outer surface of the arc-shaped bending structure can clearly display the surrounding situation of the front end of the sputum suction tube body 1 on the display device after the display device is externally connected with the USB connector 112 at the tail end of the sputum suction tube body 1, so that medical personnel can accurately dilute and suck sputum, the problems of low sputum suction efficiency and airway mucosa damage in a blind operation mode are avoided, and the sputum suction effect and efficiency are improved; the connecting line 111 connected with the wide-angle lens 11 can be arranged on the inner wall surface or the middle wall or the outer wall surface of the sputum suction tube body 1 and is connected with the joint 112; the connector 111 is a USB connector or an HDMI connector;

the diameter of the protective cover 31 in the protective component 3 is 4cm-8cm, and the height is 3cm-10 cm; the distance from the tail end of the connecting pipe 32 extending to the outer side of the protective cover 31 is 2cm-5cm, so that medical personnel can be conveniently connected with the interface 23 at the tail end of the tracheal catheter 2 by holding; 3-8 holes 321 with an upward inclined structure are arranged around the surface of the front section of the connecting pipe 32, the diameter of each hole is 3-6 mm, the internal and external air pressures of the air passage after the tracheal catheter is sealed can be communicated through the design of the holes 321, the phenomenon that pulmonary atelectasis is increased due to negative pressure suction inside the air passage of a patient is prevented, in addition, harmful gas and secretion can be effectively prevented or filtered through the filter screen 322 arranged on the outer surface of the holes 321, particularly, for the period of serious infectious disease epidemic situation, medical personnel can be greatly protected, the occurrence of cross infection is reduced, and the infection source of a disease area is reduced; the sputum suction tube body 1, the tracheal catheter 2 and the protective component 3 are all made of transparent materials; the inner diameter of the protective tube 34 and the outer diameter of the sputum suction tube body 1 are in a friction fit sliding mode, so that the position of the sputum suction tube body 1 can be adjusted up and down after the sputum suction tube body 1 is placed, and in addition, the design of the pipeline with the diameter and the shape of the protective tube 34 is favorable for the conveying stability of the sputum suction tube body 1 and the bending prevention; through the design of the protective part 3, when sputum is sucked, sputum and other liquid sprayed by a patient due to the reaction of choking cough can be shielded through the protective cover 31 and the connecting pipe 32, so that the problems of occupational exposure of medical staff, too far splashing of airway secretions and the like are avoided, and the pollution source of a ward area is reduced; the three-way valve 4 arranged at the tail end of the sputum suction pipe body 1 can be used for injecting water, medicine or sampling and testing the inside of the sputum suction pipe body 1, so that when thick sputum which is difficult to suck out is encountered, the sputum can be diluted under the action of normal saline, the dilution position is accurately positioned, the sputum can be sucked out conveniently and sampled accurately, and the injection medicine can be used for playing a role in (bronchus) treatment; the elastic telescopic belt 35 is connected between the connecting part 33 and the three-way valve 4, so that the positions of the sputum suction tube body 1 and the protective part 3 can be conveniently adjusted up and down, and the protective cover 31 can be prevented from falling off; the negative pressure part 5 and the three-way valve 4 are of an integrated structure, the central negative pressure interface 52 at the tail end of the negative pressure part 5 is externally connected with a negative pressure suction apparatus, so that sputum can be sucked by the sputum suction pipe body 1, the negative pressure adjusting hole 51 at the side edge can be pressed by fingers to adjust the negative pressure, and the use is convenient.

Example 2

Referring to fig. 5, fig. 5 is a plan view of another visual sputum aspirator for trachea cannula patients according to the present invention. The present embodiment is substantially the same as embodiment 1, except that a thin steel wire 6 is disposed in the inner wall of the end section of the sputum aspirator tube body 1, and the wide-angle lens 11 is disposed below the side hole 12 at the front end of the sputum aspirator tube body 1; the front end of a connecting pipe 32 in the protective component 3 is in a threaded connection structure with the interior of the protective cover 31; the thin steel wire 6 is arranged in the inner wall of the tail end of the sputum suction tube body 1, so that the sputum suction tube body 1 can be prevented from being bent in the process of placing, and the design or manufacturing difficulty can be reduced by arranging the wide-angle lens 11 below the side hole 12 at the front end of the sputum suction tube body 1; the connecting pipe 32 front end and the inside top of protection casing 31 between for threaded connection structural design, be convenient for the split and the connection between protection casing 31 and the connecting pipe 32, be convenient for simultaneously the washing of protective part 3.

The utility model discloses a visual sputum suction device suitable for trachea cannula patient, through the design that the front end of the sputum suction tube body is the arc bending structure of 10-30 degrees, after being convenient for the sputum suction tube body to put in, the front end position of the sputum suction tube body is convenient to rotate and adjust, thereby improving the sputum suction accuracy and efficiency, and a plurality of side openings arranged around the top of the sputum suction tube body are favorable for improving the sputum suction amount and the smoothness of sputum suction, and simultaneously can prevent the top end of the sputum suction tube body from being blocked; the wide-angle lens arranged on the outer surface of the arc-shaped bending structure can clearly display the surrounding situation of the front end of the sputum suction tube body on the display device after the USB connector at the tail end of the sputum suction tube body is externally connected with the display device, so that medical personnel can accurately dilute and suck sputum, the problems of low sputum suction efficiency and airway mucosa damage under a blind operation mode are avoided, and the sputum suction effect and efficiency are improved; the inclined upward structure of the opening arranged around the surface of the front section of the connecting pipe can lead the air pressure inside and outside the air passage to be communicated after the tracheal catheter is sealed, thereby preventing the occurrence of atelectasis in the air passage of a patient due to negative pressure suction; the inner diameter of the protective tube and the outer diameter of the sputum suction tube body are in a friction fit sliding mode, so that the position of the sputum suction tube body can be adjusted up and down after the sputum suction tube body is placed in the protective tube, and in addition, the conveying stability of the sputum suction tube body is facilitated and the sputum suction tube body is prevented from being bent due to the design of the diameter appearance pipeline of the protective tube; through the design of the protective part, when sputum is sucked, sputum and other liquid sprayed by a patient due to the reaction of choking cough can be shielded through the protective cover and the connecting pipe, so that the problems of exposure of medical care occupations, over-long splashing of airway secretions and the like are avoided, and the pollution source of a ward area is reduced; the three-way valve arranged at the tail end of the sputum suction pipe body can carry out water injection, medicine injection or sampling and testing operations to the interior of the sputum suction pipe body, so that when thick sputum which is difficult to suck out is encountered, the sputum can be diluted under the action of normal saline, the dilution position is accurately positioned, the sputum can be sucked out conveniently and sampled accurately, and the injection medicine can be used for playing a role in (bronchus) treatment; through the design that the elastic telescopic belt is connected and arranged between the connecting part and the three-way valve, the positions of the sputum suction pipe body and the protective part can be conveniently adjusted up and down, and meanwhile, the protective cover can be prevented from falling off; the negative pressure part and the three-way valve are of an integrated structure, the central negative pressure interface at the tail end of the negative pressure part is externally connected with the negative pressure suction device, so that sputum can be sucked by using the sputum suction pipe body, and the negative pressure adjusting hole at the side edge can be pressed by fingers to adjust the negative pressure, so that the use is convenient; the thin steel wire is arranged in the inner wall of the tail section of the sputum suction tube body, so that the sputum suction tube body can be prevented from being bent in the process of placing, and the design or manufacturing difficulty can be reduced by arranging the wide-angle lens at the position below the side hole at the front end of the sputum suction tube body; the connecting pipe is in a threaded connection structure design between the front end of the connecting pipe and the top end inside the protective cover, so that the protective cover and the connecting pipe are conveniently detached and connected, and meanwhile, the protective parts are conveniently cleaned.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims

1. A visual sputum suction device suitable for a patient with a tracheal cannula is characterized by comprising a sputum suction tube body, a tracheal catheter, a protection part, a three-way valve and a negative pressure suction part; the front end of the sputum suction tube body is of an arc-shaped bending structure, and the outer surface of the arc-shaped bending structure is provided with a wide-angle lens; the tail end of the tracheal catheter is provided with a connector; the protective part comprises a protective cover, a connecting pipe, a connecting part and a protective pipe; the connecting pipe is of a cylindrical hollow structure, the front end of the connecting pipe is connected with the top end inside the protective cover, and the tail end of the connecting pipe extends to the outer side of the protective cover and is connected with an interface at the tail end of the tracheal catheter; a plurality of obliquely upward structural openings are further formed in the periphery of the surface of the front section of the connecting pipe, and a layer of filter screen is arranged on the outer surface of each opening; the connecting part is arranged at the top of the outer side of the protective cover, and a hanging lug is arranged on one side of the connecting part; the protective pipe is arranged at the top of the connecting part; the tracheal catheter and the protective component are sleeved on the periphery of the sputum suction catheter body, and the inner diameter of the protective tube is matched with the outer diameter of the sputum suction catheter body; two ends of the three-way valve are respectively connected with the tail end of the sputum suction pipe body and the negative pressure suction part; the three-way valve is provided with a hook, and an elastic telescopic belt is connected between the hook and the hanging lug.

2. The visual sputum aspirator for tracheal intubation patients according to claim 1, wherein the arc-shaped bending angle of the front end of the sputum aspirator body is 10-30 degrees, and a plurality of side holes are arranged around the top.

3. The visual sputum aspirator for trachea cannula patients according to claim 1, wherein the end of the sputum aspirator body is provided with a connector connected with a wide-angle lens through a connecting wire, and the connector is a USB connector or an HDMI connector.

4. The visual sputum aspirator for trachea cannula patients according to claim 1, wherein the shield is of a semi-cylindrical hollow structure with a bottom opening facing the front end of the sputum aspirator tube body.

5. The visual sputum aspirator for endotracheal intubation patients according to claim 1, wherein the shield has a diameter of 4cm to 8cm and a height of 3cm to 10 cm.

6. The visual sputum aspirator for endotracheal intubation patients according to claim 1, wherein the distance that the distal end of the connection tube extends outside the shield is 2cm-5 cm.

7. The visual sputum aspirator for trachea cannula patients according to claim 1, wherein the number of the obliquely upward structural openings arranged around the front section surface of the connecting tube is 3-8, and the diameters of the openings are 3-6 mm.

8. The visual sputum aspirator for trachea cannula patients according to claim 1, wherein the inner diameter of the protective tube and the outer diameter of the sputum aspirator body are in friction fit sliding mode; and a threaded connection structure is arranged between the front end of the connecting pipe and the top end inside the protective cover.

9. The visual sputum aspirator for tracheal intubation patients according to claim 1, wherein the negative pressure suction part is provided with a negative pressure adjusting hole at one side and a central negative pressure port at the tail end.

10. The visual sputum aspirator for trachea cannula patients according to claim 1, wherein the inner wall of the end section of the sputum aspirator body is provided with a thin steel wire, and the wide-angle lens is arranged at a position below the side hole of the front end of the sputum aspirator body.