Protective sleeve for tracheal catheter of breathing machine

Abstract

The protective sleeve for the tracheal catheter of the breathing machine comprises a sleeve body, a fixing assembly is arranged at a top opening of the sleeve body, a bottom opening of the sleeve body is a necking opening, a sleeve air bag is arranged at the position close to the bottom opening of the sleeve body in a sleeved mode, and the sleeve air bag is connected with the fixing assembly. The cannula air bag is connected with an inflation connector with a one-way inflation valve through an inflation connecting pipe, a circle of suction holes are formed in the portion, located above the cannula air bag, of the cannula body, and a suction connecting pipe is fixed to the cannula body. One end of the suction connecting pipe is connected with the suction connector, and the other end of the suction connecting pipe extends to the position of the suction hole. The endotracheal tube fixing device is matched with an endotracheal tube for use, and has the advantages of preventing secretions and pathogenic bacteria from invading downwards, being convenient to use, low in cost and the like.

Description

Technical Field

[0001] The utility model relates to a ventilator tracheal tube auxiliary device, in particular to a protective sleeve for the ventilator tracheal tube. Background Art

[0002] Mechanical ventilation is an important means of treating critically ill patients, and an endotracheal tube (also known as an endotracheal tube) is the main way to establish mechanical ventilation. Currently available endotracheal tubes usually include a catheter body, the top of which is provided with a connecting joint for mechanical connection to a ventilator, and a catheter balloon is provided near the bottom. The catheter balloon is connected to an inflation joint with a one-way inflation valve through an inflation line. When in use, the endotracheal tube is inserted into the human airway, and after reaching the appropriate position, a syringe (with the needle removed) is connected to the inflation joint to inflate the catheter balloon, fix the position of the endotracheal tube, and then the ventilator is connected to the connecting joint to establish an artificial airway, thereby completing mechanical ventilation. It can be found from actual use that with the establishment of an artificial airway, the normal defense function of the respiratory tract is destroyed, oropharyngeal secretions are difficult to clear, and a large number of bacteria that multiply downward are retained in the glottic space, while the probability of reflux of gastric and esophageal contents increases. When various factors prevent the catheter balloon from completely sealing against the airway wall, retained matter containing a large number of microorganisms can easily enter the lower respiratory tract through the gap between the balloon and the airway wall, causing ventilator-associated pneumonia. This significantly prolongs the ICU stay and hospitalization time for patients receiving mechanical ventilation, increases mortality, and seriously affects the patient's prognosis. To address the above problems, existing practices have been to use auxiliary devices, such as subglottic aspirators, which, when used, are inserted into the patient's glottis via a thin catheter to aspirate oral secretions. However, this approach has a single function and is separated from the endotracheal tube structure, making it difficult to implement and operate, increasing the workload, and is not very effective in preventing secretions and pathogens from invading downward, requiring improvement. Utility Model Content

[0003] The utility model aims to provide a protective sleeve for a ventilator tracheal tube, which is used in conjunction with the tracheal tube and has the advantages of preventing secretions and pathogenic bacteria from invading downwards, being easy to use and having low cost.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A protective sleeve for a ventilator tracheal tube comprises a sleeve body, the top of the sleeve body being provided with a fixing assembly, the bottom of the sleeve body being a constricted opening, a sleeve airbag being sleeved near the bottom of the sleeve body, the sleeve airbag being connected to an inflation interface with a one-way inflation valve via an inflation connecting tube, a circle of suction holes being provided on the sleeve body above the sleeve airbag, a suction connecting tube being fixed on the sleeve body, one end of the suction connecting tube being connected to the suction interface and the other end extending to the location of the suction hole.

[0006] The advantages of the utility model are:

[0007] The present invention is used in conjunction with an endotracheal tube and can be fixed to the endotracheal tube. On the one hand, the cannula airbag of the present invention and the catheter airbag that comes with the endotracheal tube form a double-airbag mode, which effectively prevents secretions and pathogens from invading downward. On the other hand, by designing the suction hole and the suction connecting tube, etc., it can attract the retained materials on the cannula airbag and between the cannula airbag and the airway wall, avoiding the occurrence of blockage accumulation and downward infection of the lungs. On the other hand, the present invention assists the insertion of the endotracheal tube into the patient's airway while effectively blocking the endotracheal tube, avoiding the contact of the endotracheal tube with oropharyngeal pathogens during the process of directly inserting the endotracheal tube into the lower respiratory tract from the mouth, and reducing the secretions and pathogens in the oral cavity from being brought into the lower respiratory tract.

[0008] The utility model is convenient to use, reduces workload, has low cost, and is suitable for popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The utility model is a structural schematic diagram of a protective sleeve for a tracheal tube of a ventilator. DETAILED DESCRIPTION

[0010] like Figure 1 As shown, the utility model proposes a protective sleeve for a ventilator tracheal tube, comprising a sleeve body 10. The top of the sleeve body 10 is provided with a fixing assembly 50 for fixing to a tracheal tube (not shown) inserted therein, the bottom of the sleeve body 10 is a constricted opening, and a sleeve airbag 20 is sleeved near the bottom of the sleeve body 10. The sleeve airbag 20 is connected to an inflation interface 31 with a one-way inflation valve via an inflation connecting tube 30. A circle of suction holes 11 is provided on the sleeve body 10 above the sleeve airbag 20. A suction connecting tube 40 is fixed to the sleeve body 10. One end of the suction connecting tube 40 is connected to the suction interface 41 and the other end extends to the position of the suction hole 11.

[0011] In the actual design, the cannula body 10 is a flexible tube with a thickness of 0.1 cm. Specifically, the cannula body 10 is thin-walled, with sidewalls approximately 0.1 cm thick. The cannula body 10 is made of an existing antibacterial material to reduce the likelihood of bacterial formation. Similarly, the cannula airbag 20 is also made of an antibacterial material. In the present invention, the antibacterial material can be selected from existing silver-based inorganic antibacterial materials, for example, and is not limited thereto.

[0012] In an actual design, the cannula balloon 20 is annular and fixedly connected to the outer wall of the cannula body 10. Preferably, one end of the inflation connection tube 30 is connected to the inflation port 31, and the other end of the inflation connection tube 30 passes through the cannula body 10 from the upper portion thereof, enters the cannula body 10 lumen, extends along the inner wall of the cannula body 10 to a position near the cannula balloon 20, and then passes through the cannula body 10 to communicate with the inner lumen of the cannula balloon 20, although this is not limited to the present invention.

[0013] Typically, the cannula body 10 and cannula balloon 20 are designed to be transparent. The tapered bottom of the cannula body 10 is designed to allow an endotracheal tube inserted within the cannula body 10 to pass through the tapered bottom with force, but prevent the tube from automatically passing through the cannula body 10 without force. The inner diameter of the cannula body 10 matches the outer diameter of the endotracheal tube. Both the cannula body 10 and the endotracheal tube are transparent tubes with a certain degree of flexibility.

[0014] In actual design, the sleeve body 10 is preferably provided with four suction holes 11, and all the suction holes 11 are evenly distributed along the outer circumference of the sleeve body 10. Of course, the number of the suction holes 11 is not limited.

[0015] Furthermore, the distance between the suction hole 11 and the cannula airbag 20 is 0.5 cm.

[0016] A preferred design is that one end of the suction connecting tube 40 is connected to the suction interface 41, and the other end of the suction connecting tube 40 penetrates the inner cavity of the sleeve body 10 from the upper part of the sleeve body 10 and extends along the inner wall of the sleeve body 10 to the position of the suction hole 11, of course not limited.

[0017] Furthermore, the suction connection pipe 40 extends along the inner wall of the sleeve body 10 to near each suction hole 11 and then divides into a plurality of branch pipes (not shown in the figure), each branch pipe extending to face a corresponding suction hole 11 .

[0018] In actual design, Figure 1 The fixing assembly 50 includes a pair of support pieces 51 provided at the top of the sleeve body 10, and the side surfaces of the support pieces 51 facing outward are provided with fixing protrusions 52. Of course, the number of the support pieces 51 is not limited.

[0019] In the present invention, the fixing assembly 50 is used to fix the tracheal tube inserted into the cannula body 10. Specifically, when the tracheal tube is inserted into the cannula body 10 to a specified position (at this time, the tracheal tube is in a state of passing through the bottom of the cannula body 10), the support piece 51 is placed against the outer wall of the tracheal tube. At this time, the tracheal tube is wrapped with a perforated tape. During the wrapping process, the fixing protrusion 52 is inserted into the hole of the perforated tape, so that the cannula body 10 can be tightly fixed to the tracheal tube, avoiding relative displacement between the cannula body 10 and the tracheal tube, and ensuring the stability and safety of the tracheal tube.

[0020] The use process of this utility model is:

[0021] First, insert the endotracheal tube into the sleeve body 10 of the present invention but do not pass it out. Hold the laryngoscope, and when the epiglottis is clearly visible, gently lift the epiglottis to expose the glottis, quickly and accurately insert the endotracheal tube with the protective sleeve of the present invention through the glottis into the airway, and then make the endotracheal tube pass through the constriction at the bottom of the sleeve body 10 in due time. After the endotracheal tube reaches the appropriate position downward, the endotracheal tube is tightly fixed to the sleeve body 10 by the fixing assembly 50. Connect the syringe (with the needle removed) to the inflation connector of the endotracheal tube, inflate the catheter airbag, and connect the syringe (with the needle removed) to the inflation interface 31, inflate the sleeve airbag 20, so that the endotracheal tube with the protective sleeve of the present invention is stably fixed in the airway. At this time, the catheter airbag and the sleeve airbag 20 are tightly fitted to the airway, and the two are separated by a distance, forming an effective barrier to physically block pathogens and secretions, preventing subglottic retention materials such as gastroesophageal reflux from invading the lungs. Then, the ventilator is connected to the connecting joint of the endotracheal tube, and an artificial airway is established to complete mechanical ventilation. During the ventilation process, the suction interface 41 of the present invention is connected to the syringe (with the needle removed), so as to continuously suction the retained matter on the cannula balloon 20 and between the cannula balloon 20 and the airway wall.

[0022] The above-mentioned syringe is manually operated. In practice, an electric inflation pump can also be used to inflate the cannula airbag 20 and the catheter airbag. In addition, the suction interface 41 can also be connected to an existing negative pressure suction device to achieve the purpose of clearing retained matter and reducing the incidence of ventilator-associated pneumonia.

[0023] The beneficial effects of the utility model are:

[0024] The present invention is used in conjunction with an endotracheal tube and can be fixed to the endotracheal tube. On the one hand, the cannula airbag of the present invention and the catheter airbag that comes with the endotracheal tube form a double-airbag mode, which effectively prevents secretions and pathogens from invading downward. On the other hand, by designing the suction hole and the suction connecting tube, etc., it can attract the retained materials on the cannula airbag and between the cannula airbag and the airway wall, avoiding the occurrence of blockage accumulation and downward infection of the lungs. On the other hand, the present invention assists the insertion of the endotracheal tube into the patient's airway while effectively blocking the endotracheal tube, avoiding the contact of the endotracheal tube with oropharyngeal pathogens during the process of directly inserting the endotracheal tube into the lower respiratory tract from the mouth, and reducing the secretions and pathogens in the oral cavity from being brought into the lower respiratory tract.

[0025] The above is a preferred embodiment of the present invention and the technical principles used therein. For those skilled in the art, any obvious changes such as equivalent transformations, simple replacements, etc. based on the technical solution of the present invention, without departing from the spirit and scope of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A protective sleeve for a ventilator tracheal tube, characterized in that: It includes a sleeve body, the top of the sleeve body is provided with a fixing component, the bottom of the sleeve body is a necked opening, a sleeve airbag is sleeved near the bottom of the sleeve body, the sleeve airbag is connected to an inflation interface with a one-way inflation valve via an inflation connecting tube, a circle of suction holes is provided on the sleeve body above the sleeve airbag, a suction connecting tube is fixed on the sleeve body, one end of the suction connecting tube is connected to the suction interface and the other end extends to the position of the suction hole.

2. The protective sleeve for tracheal tube of a ventilator according to claim 1, wherein: The sleeve body is a flexible tube with a thickness of 0.1 cm and is made of antibacterial material.

3. The protective sleeve for tracheal tube of a ventilator according to claim 1, characterized in that: The sleeve airbag is annular and is fixedly connected to the outer wall of the sleeve body; one end of the inflation connecting tube is connected to the inflation interface, and the other end of the inflation connecting tube penetrates into the tube cavity of the sleeve body from the upper part of the sleeve body, extends along the inner wall of the sleeve body to a position close to the sleeve airbag, and then passes through the sleeve body to communicate with the inner cavity of the sleeve airbag.

4. The protective sleeve for tracheal tube of a ventilator according to claim 1, wherein: The sleeve body is provided with four suction holes, and all the suction holes are evenly distributed along the outer circumference direction of the sleeve body.

5. The protective sleeve for tracheal tube of a ventilator according to claim 4, characterized in that: The distance between the suction hole and the sleeve airbag is 0.5 cm.

6. The protective sleeve for a ventilator tracheal tube according to claim 4, characterized in that: One end of the suction connecting tube is connected to the suction interface, and the other end of the suction connecting tube penetrates into the inner cavity of the sleeve body from the upper part of the sleeve body and then extends along the inner wall of the sleeve body to the position of the suction hole.

7. The protective sleeve for a ventilator tracheal tube according to claim 6, characterized in that: The suction connection pipe extends along the inner wall of the sleeve body to near each of the suction holes and then divides into a plurality of branch pipes, each of the branch pipes extending to be opposite to a corresponding one of the suction holes.

8. The protective sleeve for a ventilator tracheal tube according to claim 1, wherein: The fixing assembly includes a pair of support plates arranged at the top opening of the sleeve body, and the outward side surfaces of the support plates are provided with fixing protrusions.

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