Tracheal catheter with high adaptability

Abstract

The invention belongs to the field of tracheal catheters, and discloses a high-adaptability tracheal catheter which comprises a catheter body, a 15mm standard adapter is arranged in the catheter body in a matched mode, a self-expansion air bag is arranged on the surface of the catheter body in a matched mode, the inner layer of the self-expansion air bag is made of polyurethane foam, the outer layer of the self-expansion air bag is made of thermoplastic elastomer, and an air channel is closed after the polyurethane foam on the inner layer is expanded. The outer SEBS thermoplastic elastomer slightly deforms at the body temperature and is perfectly attached to the airway wall, an exhaust tube is adaptively arranged on one side of the self-expansion air bag, an indicating balloon is adaptively arranged at one end of the exhaust tube, a subglottic suction device is adaptively arranged on the other side of the self-expansion air bag, and a side hole is formed in the surface of one end of the tube body. The problems that in the prior art, airway attachment is poor, anatomical shapes are different, pneumonia is caused by regurgitation and aspiration easily, air leakage is prone to occurring, airway mucosa injury is large, and airway mucosa ischemia injury is caused by too large pressure are solved, and the tracheal catheter is suitable for being used for tracheal catheters.

Description

Technical Field

[0001] The invention relates to the technical field of tracheal tubes, in particular to a tracheal tube with high adaptability. Background Art

[0002] Tracheal intubation refers to the technique of inserting a special tracheal tube into the trachea through the glottis. This technique can provide the best conditions for airway patency, artificial ventilation, respiratory suction and prevention of aspiration. The tracheal tube is an essential instrument to achieve these functions.

[0003] When using conventional laryngoscopes for tracheal intubation, the glottis is often not fully exposed, which makes intubation very difficult and can easily cause injury to the patient, or even severe hypoxia and death. Currently, traditional catheter balloons have the following shortcomings:

[0004] 1. Due to individual differences in airway anatomical shape, it is often not possible to fit perfectly, and tiny wrinkles in the airbag may cause repeated micro-aspiration.

[0005] 2. The amount of airbag inflation is difficult to control. If the airbag is over-inflated, it will damage the airway mucosa and cause ischemic damage to the airway mucosa. If the airbag is under-inflated, it will cause air leakage and micro-aspiration.

[0006] 3. The currently recommended regular monitoring of balloon pressure is relatively cumbersome in clinical operation and in fact it is impossible to maintain balloon pressure at a good level for 24 hours.

[0007] Therefore, in order to solve the above problems, a highly adaptable endotracheal tube is proposed, which is suitable for all patients and scenarios requiring endotracheal intubation, especially patients with a high risk of pneumonia and patients with abnormal airway shape. Summary of the invention

[0008] The present invention is intended to provide a highly adaptable endotracheal tube to solve the problems of poor airway fit, anatomical shape differences, easy reflux aspiration leading to pneumonia, easy air leakage, severe airway mucosal damage, and excessive pressure leading to airway mucosal ischemia and damage in the prior art.

[0009] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: A highly adaptable endotracheal tube, comprising a tube body, a 15mm standard adapter is adapted inside the tube body, a self-expanding airbag is adapted on the surface of the tube body, a suction tube is adapted on one side of the self-expanding airbag, an indicator balloon is adapted on one end of the suction tube, a subglottic suction device is adapted on the other side of the self-expanding airbag, and a side hole is opened on the surface of one end of the tube body;

[0010] The inner layer of the self-inflating airbag is polyurethane foam, and the outer layer of the self-inflating airbag is thermoplastic elastomer.

[0011] Furthermore, one end of the air extraction pipe is adapted to be provided with an air inlet.

[0012] Furthermore, one end of the air extraction pipe is connected with a three-way pipe.

[0013] Furthermore, one end of the three-way tube is adapted to be connected with a syringe.

[0014] The beneficial effects of this technical solution are:

[0015] (1) The inner layer of polyurethane foam expands to seal the airway, while the outer layer of SEBS thermoplastic elastomer deforms slightly at body temperature and fits perfectly to the airway wall.

[0016] (2) Reduce tissue damage caused by displacement of the self-inflating balloon:

[0017] The anatomical fit and the anti-vibration, rebound and contraction properties of the resilient material will reduce the relative displacement caused by the patient's activities and reduce the tissue damage caused by the displacement. While ensuring the sealing of the airbag, it reduces the pressure of the airbag on the airway wall, avoids tissue damage and improves patient comfort.

[0018] (3) Can be used for air transportation or transportation to different altitudes:

[0019] The expansion of high resilience polyurethane materials depends on the elastic properties of the foam rather than the generation of air pressure, and theoretically is not affected by atmospheric pressure.

[0020] (4) Reduce intubation-related throat injuries and post-extubation complications. Thermoplastic materials are combined with self-resilient materials to improve the fit between the airbag and the airway, minimize microaspiration, and reduce the occurrence of adverse events such as pneumonia. The material used is soft and has good cushioning properties.

[0021] (5) Before intubation, first connect the three-way tube to the suction tube and communicate with the inner cavity of the self-inflating airbag. Then connect the syringe to the three-way tube and use the syringe to draw air to make the self-inflating airbag deflate and reduce its volume, which is convenient for intubation. After the air is drawn, turn the three-way tube to make the suction tube in a closed state and perform intubation. When the tracheal tube is placed in the appropriate position, unplug the three-way tube to connect the suction tube to the atmosphere, so that the self-inflating airbag rebounds and expands, causing the inner layer of polyurethane foam to expand and close the airway. The outer layer of thermoplastic elastomer deforms slightly at body temperature and fits the airway wall perfectly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the structural schematic diagrams of a highly adaptable endotracheal tube proposed by the present invention;

[0023] Figure 2 This is the second structural schematic diagram of a highly adaptable endotracheal tube proposed by the present invention;

[0024] Figure 3 This is a schematic diagram of the connection structure of a highly adaptable endotracheal tube during use proposed by the present invention.

[0025] The names of the corresponding marks in the accompanying drawings are: 1. tube body; 2. 15mm standard adapter; 3. self-inflating airbag; 4. suction tube; 5. indicator balloon; 6. subglottic suction device; 7. side hole; 8. three-way tube; 9. syringe; 301. polyurethane foam; 302. thermoplastic elastomer; 401. air inlet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The specific implementation process is as follows:

[0028] Embodiment 1:

[0029] See also Figure 1-3 The present invention provides a technical solution: a highly adaptable endotracheal tube, comprising a tube body 1, a 15 mm standard adapter 2 is adapted to be installed inside the tube body 1, a self-expanding balloon 3 is adapted to be installed on the surface of the tube body 1, the inner layer of the self-expanding balloon 3 is polyurethane foam 301, the polyurethane foam 301 has a low density, is easy to process and transport, has good elasticity, can quickly restore its shape, and has excellent thermal insulation properties, good durability and pressure resistance, the outer layer of the self-expanding balloon 3 is thermoplastic Elastomer 302, thermoplastic elastomer 302 has the characteristics of high strength, high resilience, and can be injection molded, with a wide range of applications and is environmentally friendly, non-toxic and safe. One side of the self-inflating airbag 3 is adapted to be installed with a suction pipe 4, one end of the suction pipe 4 is adapted to be installed with an air inlet 401, one end of the suction pipe 4 is connected to be installed with a three-way pipe 8, one end of the three-way pipe 8 is adapted to be connected with a syringe 9, one end of the suction pipe 4 is adapted to be installed with an indicator balloon 5, the other side of the self-inflating airbag 3 is adapted to be installed with a subglottic suction device 6, and a side hole 7 is opened on the surface of one end of the tube body 1;

[0030] The specific implementation process is as follows:

[0031] Before intubation, the three-way tube 8 is first connected to the exhaust pipe 4 so that the three-way tube 8 communicates with the inner cavity of the self-inflating airbag 3 through the exhaust pipe 4, and then the syringe 9 is connected to the three-way tube 8, and the syringe 9 is used to exhaust air to make the self-inflating airbag 3 deflate and reduce its volume. When the indicator balloon 5 is completely shrunk and closed during exhaust, it means that all the gas has been extracted. This is the most convenient time for intubation. After the exhaust is completed, the three-way tube 8 is rotated to make the exhaust pipe 4 in a closed state, and intubation is performed. When the endotracheal tube is placed in a suitable position, the three-way tube 8 is unplugged to make the exhaust pipe 4 communicate with the atmosphere, so that the self-inflating airbag 3 rebounds and expands, and the inner layer of polyurethane foam 301 expands to close the airway, and the outer layer of thermoplastic elastomer 302 deforms slightly at body temperature and fits the airway wall perfectly. The material used is soft and has good cushioning properties. The anti-vibration, rebound and contraction properties of the rebound material can reduce the relative displacement caused by the patient's activities and reduce tissue damage caused by displacement.

[0032] Embodiment 2:

[0033] See also Figure 1-3 The present invention provides a technical solution: a highly adaptable endotracheal tube, comprising a tube body 1, a 15mm standard adapter 2 is adapted to be installed inside the tube body 1, a self-expanding balloon 3 is adapted to be installed on the surface of the tube body 1, the inner layer of the self-expanding balloon 3 is a polyurethane foam 301, the polyurethane foam 301 has good shock resistance and softness, good tear strength, easy hardness adjustment, resilience, excellent elasticity, excellent foam remodeling, and can automatically expand into any shape, the outer layer of the self-expanding balloon 3 is a thermoplastic elastomer 302, the thermoplastic elastomer 302 has excellent biocompatibility, high strength, wear resistance, good flexibility and elasticity, acid and alkali resistance, can be slightly deformed at human body temperature, and can add hydrophobic groups or coatings on the surface of the thermoplastic elastomer 302 to prevent protein adhesion, reduce the impact of secretions on the balloon and bacteria in The opportunity for growth on the airbag, the thermoplastic elastomer 302 is filled and formed into a unique contour that conforms to the patient's trachea. Compared with the traditional high-volume low-pressure airbag, the self-inflating airbag 3 forms fewer channels and narrower wrinkles, and has a better effect in preventing the inhalation of secretions. One side of the self-inflating airbag 3 is adapted to be installed with a suction tube 4, and the suction tube 4 can be connected to a three-way tube 8, so that the gas in the self-inflating airbag 3 can be evacuated with a syringe 9 before intubation. One end of the suction tube 4 is adapted to be installed with an air inlet 401, and one end of the suction tube 4 is connected to and installed with a three-way tube 8, and one end of the three-way tube 8 is adapted to be connected with a syringe 9, and one end of the suction tube 4 is adapted to be installed with an indicator balloon 5. When the air is pumped and the pressure is measured, when the indicator balloon 5 is completely closed, it means that the gas has been completely extracted. The other side of the self-inflating airbag 3 is adapted to be installed with a subglottic suction device 6, and a side hole 7 is opened on the surface of one end of the tube body 1.

[0034] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A highly adaptable endotracheal tube, comprising a tube body (1), characterized in that: A 15 mm standard adapter (2) is fitted inside the tube body (1), a self-inflating airbag (3) is fitted on the surface of the tube body (1), a suction tube (4) is fitted on one side of the self-inflating airbag (3), an indicator balloon (5) is fitted on one end of the suction tube (4), a subglottic suction device (6) is fitted on the other side of the self-inflating airbag (3), and a side hole (7) is opened on the surface of one end of the tube body (1); The inner layer of the self-inflating airbag (3) is polyurethane foam (301), and the outer layer of the self-inflating airbag (3) is thermoplastic elastomer (302).

2. A highly adaptable endotracheal tube according to claim 1, characterized in that: One end of the air extraction pipe (4) is adapted to be provided with an air inlet (401).

3. A highly adaptable endotracheal tube according to claim 1, characterized in that: One end of the air extraction pipe (4) is connected with a three-way pipe (8).

4. A highly adaptable endotracheal tube according to claim 3, characterized in that: One end of the three-way pipe (8) is adapted to be connected with a syringe (9).

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