Artificial airway tube

Abstract

The utility model relates to an artificial airway tube which comprises an airway tube body, a flushing tube and a drainage tube, the flushing tube and the drainage tube are arranged in the airway tube body, one end of the airway tube body is a positioning section, the other end of the airway tube body is an air bag section, and the drainage tube surrounds the air bag section; the flushing tube and the drainage tube are separately arranged to facilitate simultaneous drainage and flushing; a plurality of drainage tube small holes are formed in the annular section of the drainage tube; from the external drainage end, the opening areas of the drainage tube small holes are equal, and the number of the drainage tube small holes is gradually increased; or the number of the drainage tube small holes is not changed, and the hole opening area is gradually increased; the annular section surrounds the airway tube body and is close to the air bag, and the small drainage hole is formed in the lowest position of the annular section and is close to the air bag. Drainage and flushing can be carried out at the same time; the anti-blocking effect is achieved, and secretions can be more effectively removed. A drainage hole of the drainage tube has stable low negative pressure, and airway injury is avoided. Complications such as airway mucous membrane damage and bleeding possibly caused by too high suction negative pressure are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of artificial airway tube with glottis suction, specifically to a kind of artificial airway tube convenient for drainage and flushing, can continuously fully drain liquid and impurities accumulated under glottis, reduce infection risk, and with stable low negative pressure, avoid airway injury and complications such as bleeding.Can be flushed and drained using different fluids, including temperature, humidity, oxygen, physiological saline and disinfectant etc., according to clinical needs to carry out specific physical therapy to glottis local. BACKGROUND

[0002] Window body bottom end with glottis suction artificial airway usually refers to a kind of new tracheal tube or tracheostomy cannula, which is characterized by being equipped with a drainage tube located below glottis.The design aims to prevent ventilator-associated pneumonia (VAP).

[0003] For patients using artificial airway, due to the existence of airway balloon, a relatively closed "dead space" is formed between the lower glottis and the balloon.This leads to the accumulation of sputum and secretions, which becomes a breeding ground for bacteria, and these bacteria often enter the lower respiratory tract and lungs along the peripheral gap of the balloon, greatly increasing the risk of lung infection, and is one of the key factors leading to VAP.In order to solve this problem, by glottis drainage tube to attract these secretions regularly or continuously to avoid entering lower respiratory tract and lung, has become one of the main methods to prevent and treat VAP.

[0004] However, the secretions under glottis are often sticky, and sometimes even contain solid impurities.This makes the glottis drainage tube on the market prone to blockage, leading to problems such as poor liquid discharge, excessive suction pressure and airway damage, so its safety and efficacy need to be further optimized. UTILITY MODEL CONTENT

[0005] In view of the above problems, the main purpose of the utility model is to provide an artificial airway tube that reduces the risk of infection, has stable low negative pressure, avoids airway damage, and is convenient for simultaneous drainage and flushing.

[0006] The utility model solves the above technical problems by the following technical solutions: an artificial airway tube, the artificial airway tube comprises: an airway tube body and a flushing pipe and a drainage pipe arranged in the airway tube body, the airway tube body is a curved L-shaped pipe, one end of the L-shaped pipe is a positioning section provided with a fixing head, the other end is a gasbag section fixed with a gasbag, and the gasbag section is surrounded by the drainage pipe;The flushing pipe and the drainage pipe are separately arranged to facilitate simultaneous drainage and flushing.

[0007] The drainage tube comprises an annular section surrounding the tracheal tube body on the balloon section and a straight tube section in the tracheal tube body, the annular section and the straight tube section are communicated, the flushing tube and the straight tube section are arranged in parallel inside the tracheal tube body, and the flushing tube is connected to the annular section at the part of the balloon section.

[0008] The drainage tube is a drainage tube for regularly or continuously attracting subglottic secretion, and a plurality of drainage tube holes are arranged on the annular section of the drainage tube.

[0009] From the one end of external drainage, the opening areas of the plurality of drainage tube holes are equal and gradually increase in number, or the number of the plurality of drainage tube holes is unchanged and the opening areas gradually increase.

[0010] The annular section surrounds the tracheal body and is integrated with the trachea, and the drainage holes are arranged at the lowest part of the annular section and close to the balloon.

[0011] In the specific embodiment of the utility model, the attracting and flushing section is located on the outer side wall, the inner side wall or is integrally formed in the balloon section and the positioning section.

[0012] In the specific embodiment of the utility model, the attracting and flushing section comprises a plurality of groups, each group comprises a pipeline and a cap mounted on the pipeline, and the pipelines of the plurality of groups are fixed together in a separated and communicated manner.

[0013] In the specific embodiment of the utility model, the balloon surrounds the artificial trachea and is fixed on the artificial trachea, the balloon section is the section entering the glottis of the human body, the fixed head of the positioning section is located outside the oral cavity or outside the skin of the throat, the part of the positioning section except the fixed head is located outside the oral cavity or outside the skin of the throat of the patient, and the balloon is supplemented with gas or removes gas by injection.

[0014] In the specific embodiment of the utility model, the balloon is matched with a balloon inflation tube, the balloon inflation tube comprises a balloon inflation tube front section and a balloon inflation tube rear section, the balloon inflation tube front section and the balloon inflation tube rear section are communicated, the balloon inflation tube front section for supplementing gas is fixed on the fixed head, the balloon inflation tube rear section is located on the inner wall of the artificial trachea, the balloon inflation tube front section is a gas injection inflation end, and the balloon inflation tube rear section is communicated with the balloon through the air hole arranged on the artificial trachea.

[0015] In the specific embodiment of the utility model, the diameter of the smallest hole in the drainage tube hole ranges from 0.08mm to 1.2mm, and the diameter of the largest hole ranges from 3.0mm to 5.0mm.

[0016] In the specific embodiment of the utility model, the diameter of the annular section 301 of the drainage tube ranges from 2mm to 5mm.

[0017] The artificial airway tube has the following advantages through the special pipeline and the porous design.

[0018] 1. The fluid can continuously flow in the porous drainage tube under the driving of the exogenous negative pressure, and the continuous fluid movement can effectively remove the secretion.

[0019] 2. The special porous design of the drainage tube has a stable low negative pressure around the drainage hole during negative pressure suction, avoids airway damage, avoids high suction negative pressure causing airway mucosa damage and even bleeding complications, has the effects of protecting the airway mucosa, reducing damage and pain, etc.

[0020] 3. The flushing and drainage can be simultaneously realized, which is helpful to further maintain the cleanliness of the airway and further reduce the risk of infection.

[0021] 4. Different fluids can be used for flushing and drainage, including temperature, humidity, oxygen, physiological saline and disinfectant, etc., and specific physical treatment can be performed on the subglottic part according to the clinical needs. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic view of the utility model.

[0023] Figure 2 It is a structure schematic view of the drainage tube in the utility model.

[0024] In the figure: airway tube body 1, air bag 2, drainage tube 3, drainage tube small hole 4, fixed head 5, air bag inflation pipe 6, air hole 7, flushing pipe 8, positioning section 101, air bag section 102, annular section 301, suction and flushing section 302, cap 303, air bag inflation pipe front section 601, air bag inflation pipe rear section 602, flushing pipe cap 801. DETAILED DESCRIPTION

[0025] The technical scheme of the utility model will be described in detail below with reference to the preferred embodiments and the accompanying drawings.

[0026] The utility model discloses a prevent stifled glottis lower suction artificial airway with the function of washing, in current clinical application, artificial airway sleeve mainly includes oral (or through nose) tracheal intubation sleeve and tracheostomy sleeve. These sleeves are widely used in surgical anesthesia, long short -term mechanical ventilation, respiratory failure and other situations that need to establish artificial airway. They are all provided with air bag, mainly in order to prevent the displacement of pipeline and ensure the complete sealing of breathing machine. But due to the effect of air bag closed airway, it is easy to form a relative " dead space " between glottis and air bag, and the sputum and secretion in this area are easy to accumulate, create the breeding environment for bacteria and other microorganisms. These microorganisms often invade the lower respiratory tract and lung along the gap of air bag, significantly improve the infection risk, become one of the main reasons of ventilator associated pneumonia. Recently, there is a new type of artificial airway sleeve design, which is provided with suction drainage tube on the upper edge of air bag, and the secretion can be regularly or continuously sucked. However, due to the high viscosity and possible solid impurities of the secretion under the glottis, the current drainage tube is easy to be blocked, leading to the problem of poor drainage and airway damage, so its safety and effect need to be improved. And the new design is just to solve this problem, through the special design, the fluid dynamics is optimized, the continuous smoothness of the drainage tube under the glottis is ensured, so that the ventilator associated pneumonia can be more effectively prevented and treated.

[0027] Figure 1 It is the overall structure schematic diagram of the utility model, Figure 2 It is the structure schematic diagram of the drainage tube in the utility model. Figure 1 And 2 As shown: the utility model provides airway tube body and the washing pipe 8 and drainage tube 3 arranged in the airway tube body, the airway tube body 1 is the curved L type pipe, one end of L type pipe is the positioning section 101 provided with fixed head, the other end is the air bag section 102 fixed with air bag, and the air bag section 102 is surrounded by drainage tube 3, the washing pipe and drainage tube 3 are arranged separately to facilitate simultaneous drainage and washing.

[0028] The drainage tube 3 includes the annular section on the air bag section and the straight pipe section in the airway tube body, and the annular section 301 and the straight pipe section 302 are communicated, the washing pipe 8 and the straight pipe section 302 are arranged in parallel in the inside of the airway tube body 1, and the washing pipe 8 is connected to the annular section 301 in the part of the air bag section.

[0029] The drainage tube 3 is a drainage tube for regularly or continuously attracting subglottic secretion, a plurality of drainage tube holes 4 are arranged on the annular section 301 of the drainage tube 3, the drainage tube holes 4 are arranged at the lowest position of the annular section and close to the air bag, the opening areas of the plurality of drainage tube holes 4 are equal from the one end of external drainage, and the number gradually increases, or the number of the plurality of drainage tube holes is unchanged, and the opening areas gradually increase, the annular section 301 is arranged on the air bag and is integrated with the air bag. In order to attract completely, the drainage holes 4 in the utility model are arranged at the lowest position of the annular section and close to the air bag 2.

[0030] In the specific implementation process, the diameter of the drainage tube hole 4 is adjusted according to the needs, and the following values can be set: the diameter of the smallest hole in the drainage tube hole 4 ranges from 0.08mm to 1.2mm, and the diameter of the largest hole ranges from 3.0mm to 5.0mm. In the specific implementation process, the pipe diameter of the annular section 301 of the drainage tube 3 ranges from 2.0mm to 5.0mm. The above parameters can be set to other values according to the needs.

[0031] The attraction and flushing section 302 can be located on the outer side wall of the positioning section, in the inner side wall or integrally formed in the air bag section and the positioning section. In the specific implementation process, the attraction and flushing section of the utility model can include multiple groups, each group includes a pipe and a cap installed on the pipe, and the multiple groups of pipes are fixed together in a separated but connected manner (one group is schematically shown in the figure, and multiple groups can be arranged). Figure 1

[0032] In the specific implementation process of the utility model, the air bag surrounds the artificial airway and is fixed on the artificial airway, the air bag section is the section entering the glottis of the human body, the fixed head of the positioning section is located outside the oral cavity, the part of the positioning section except the fixed head is located outside the oral cavity or the skin of the throat of the patient, and the air bag adopts the injection inflation mode to supplement or remove the gas.

[0033] In the specific implementation process, the attraction and flushing section 302 in the airway drainage tube 3 of the utility model can include multiple groups, each group includes a pipe and a cap 303 installed on the pipe, and the multiple groups of pipes are fixed together in a separated but connected manner. The cap 303 is arranged on each group of pipes, so that the side holes can be opened and closed at any time. In this way, the pressure of the attraction can be adjusted by the number of the opened and closed side holes, especially when the external negative pressure does not have the function of adjusting the size.

[0034] Similarly, the flushing pipe 8 can also be provided with a flushing pipe cap 801 with the same function, see Figure 1 .

[0035] ​The air bag is matched with an air bag inflation pipe 6, the air bag inflation pipe 6 comprises an air bag inflation pipe front section 601 and an air bag inflation pipe rear section 602, the air bag inflation pipe front section 601 and the air bag inflation pipe rear section 602 are communicated, the air bag inflation pipe front section 601 for supplementing gas is fixed on the fixed head 5, the air bag inflation pipe rear section 602 is located on the inner wall of the artificial airway 1, the air bag inflation pipe front section 601 is a gas injection end, and the air bag inflation pipe rear section 602 is communicated with the air bag 2 through the air hole 7 arranged on the artificial airway 1.

[0036] In the specific implementation process, the air bag is spherical and surrounds the artificial airway after being filled with gas, and the diameter ranges from 6.0 to 40.0 mm.

[0037] In the specific implementation process, the air bag 2 and the artificial airway 1 are integrally formed or fixed together by using industrial glue which is safe to the human body; and the drainage tube 3 and the artificial airway 1 are integrally formed or fixed together by using industrial glue which is safe to the human body.

[0038] In the specific implementation process, the artificial airway provided by the utility model is used once or repeatedly used multiple times; when the artificial airway is repeatedly used multiple times, the drainage tube 3 is connected with an external flushing pipe.

[0039] In the specific implementation process, the artificial airway 1 and the drainage tube 3 in the utility model are pipelines made of antibacterial material, and the air bag 2 is an air bag made of antibacterial material.

[0040] The end holes of the artificial airway, the drainage tube and the flushing pipe 8 in the utility model are all smooth round openings, and the smooth round openings prevent the human body from being scratched when being used.

[0041] The working process of the utility model is as follows:

[0042] Placement of the artificial airway: the medical team firstly accurately places the novel artificial airway in the airway of the patient, and the operation is completely the same as that of the conventional artificial airway.

[0043] Connection with external negative pressure suction: once the artificial airway is properly placed in the appropriate position, the subglottic suction drainage tube is immediately connected with the external suction equipment. According to the needs of the patient and the decision of the doctor, the equipment can be set to continuously or periodically generate negative pressure. In most cases, the negative pressure range of the external suction equipment is set to be between-10 and-100 mmHg.

[0044] Suction of secretions: after the external suction equipment is turned on, continuous or periodic suction of the secretions located below the glottis and above the air bag is generated. This helps to prevent the secretions from entering the lower respiratory tract and the lungs, thereby reducing the risk of ventilator-associated pneumonia. In order to achieve the best effect, the artificial airway of the utility model is recommended to be set to continuous suction, which is the best.

[0045] Periodic or aperiodic flushing: to further ensure the patency of the subglottic suction tube and maintain its cleanliness, medical staff will use normal saline or other to flush it regularly or irregularly. The usual operation is to inject 2-20ml of normal saline through the flushing tube, and at the same time or after waiting for a few seconds, the saline and secretions are sucked out from the suction tube. Or continuously enter the flushing tube at a speed of about 50ml-500ml / h, while the drainage tube sucks out. This step helps to remove possible adhesive secretions in and around the tube, ensuring the efficiency and continuity of subglottic suction. The temperature, humidity, etc. of the fluid can also be adjusted, and oxygen and disinfectant can also be used, so that the subglottic area can be treated with specific physical therapy according to clinical needs.

[0046] The utility model discloses can let fluid in the drainage tube continue to flow, not only can more effectively remove secretions, and has the effect of continuously keeping the patency and preventing the blockage of the pipeline. It is the most important advantage distinguishing from other artificial airway.

[0047] The utility model discloses be convenient for flushing and drainage simultaneously, help to keep the cleanliness of airway, and further reduce the risk of infection.

[0048] The drainage hole of the drainage tube in the utility model has stable low negative pressure, avoiding airway damage. Too high suction negative pressure can cause airway mucosa damage, and then cause complications such as bleeding. Reducing the suction negative pressure can protect the airway mucosa, reduce damage and pain.

[0049] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An artificial airway tube, characterized by: The artificial airway tube comprises an airway tube body and a flushing tube and a drainage tube arranged in the airway tube body, the airway tube body is a curved L-shaped tube, one end of the L-shaped tube is a positioning section provided with a fixing head, the other end is a cuff section provided with a cuff, and the cuff section is surrounded by the drainage tube; the flushing tube and the drainage tube are arranged separately to facilitate simultaneous drainage and flushing; The drainage tube comprises an annular section surrounding the airway tube body on the cuff section and a straight tube section in the airway tube body, the annular section and the straight tube section are communicated, the flushing tube and the straight tube section are arranged in parallel inside the airway tube body, and the flushing tube is connected to the annular section on the part of the cuff section; The drainage tube is a drainage tube for periodic or continuous suction of subglottic secretions, a plurality of drainage tube holes are arranged on the annular section of the drainage tube; starting from the external drainage end, the opening areas of the plurality of drainage tube holes are equal, and the number gradually increases; or the number of the plurality of drainage tube holes is constant, and the opening areas gradually increase. The annular section surrounds the airway tube body and is close to the cuff; the drainage holes are arranged at the lowest part of the annular section and close to the position of the cuff.

2. An artificial airway tube according to claim 1, characterised in that: The suction and flushing section is located on the outer wall of the positioning section, in the inner wall of the positioning section, or integrally formed in the cuff section and the positioning section.

3. An artificial airway tube according to claim 1 or 2, characterised in that: The suction and flushing section comprises a plurality of groups, each group comprising a pipeline and a cap mounted on the pipeline, and the plurality of pipelines are fixed together in a separate but communicated manner.

4. An artificial airway tube according to claim 1 or 2, characterised in that: The cuff surrounds and is fixed to the artificial airway, the cuff section is the section entering the glottis, the fixing head of the positioning section is located outside the oral cavity or outside the skin of the throat, the part of the positioning section except the fixing head is located outside the oral cavity or outside the skin of the throat of the patient, and the cuff is supplemented with gas or gas is removed by injection.

5. The artificial airway tube of claim 1, wherein: The cuff is matched with a cuff inflation tube, the cuff inflation tube comprises a cuff inflation tube front section and a cuff inflation tube rear section, the cuff inflation tube front section and the cuff inflation tube rear section are communicated, the cuff inflation tube front section for supplementing gas is fixed to the fixing head, the cuff inflation tube rear section is located on the inner wall of the artificial airway, the cuff inflation tube front section is a gas injection inflation end, and the cuff inflation tube rear section is communicated with the cuff through the air hole arranged on the artificial airway.

6. The artificial airway tube of claim 1, wherein: The diameter of the smallest hole in the drainage tube hole ranges from 0.08 mm to 1.2 mm, and the diameter of the largest hole ranges from 3.0 mm to 5.0 mm.

7. The artificial airway tube of claim 1 or 6, wherein: The diameter of the annular section 301 of the drainage tube ranges from 2.0 mm to 5.0 mm.

Images