CN219398582U - An endotracheal intubation pressure measuring device - Google Patents

Abstract

The tracheal intubation pressure measuring device comprises a tracheal catheter tube, a cuff, a syringe connecting port, a respirator connecting port, a second connecting pipe and a pressure monitoring mechanism, wherein the cuff is arranged at the position, close to the end, of the tracheal catheter tube; the pressure monitoring mechanism comprises a cylinder and a second identification area, wherein the cylinder is communicated with one end of a second connecting pipe, a piston cavity is formed in the cylinder, a piston is arranged in the piston cavity, and a round rod is arranged in the middle of one side of the piston.

Description

An endotracheal intubation pressure measuring device

technical field

The utility model relates to an auxiliary device for tracheal intubation, in particular to a pressure measuring device for tracheal intubation.

Background technique

Tracheal intubation has been widely used in general anesthesia surgery, respiratory failure and other patients who need to establish an artificial airway.

Existing endotracheal intubation cuffs require a pressure gauge to monitor the pressure. If the pressure is too low, mechanical ventilation may leak air and fail to reach the target tidal volume. If the pressure is too high, it may cause pressure damage to the tracheal wall mucosa. The pressure gauge will release part of the gas every time the pressure is measured, and frequent monitoring is required. It is necessary to replenish the cuff with gas at any time to maintain the target pressure. The operation is troublesome and increases the workload. In the past, there were two ways to monitor the cuff pressure. The other is to pinch the cushioning airbag by hand, and estimate the pressure of the cuff by feeling the softness and hardness of the cushioning airbag. This method requires experience and is more subjective.

Utility model content

In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a pressure measuring device for endotracheal intubation, which effectively solves the problem that the existing endotracheal intubation cuff needs a pressure gauge to monitor the pressure. If the pressure is too small, mechanical ventilation may leak air and fail to reach the target tidal volume. If the pressure is too high, it may cause pressure damage to the mucous membrane of the trachea wall. However, the pressure gauge will release part of the gas every time the pressure is measured, and frequent monitoring is required, so it is necessary to replenish the cuff with gas at any time to maintain the target pressure. , One is manometer monitoring, the method is slightly cumbersome. The other is to pinch the cushioning airbag by hand, and estimate the pressure of the cuff by feeling the softness and hardness of the cushioning airbag. This method requires experience and is relatively subjective.

In order to achieve the above object, the utility model provides the following technical solutions: the utility model comprises a tracheal tube body, a cuff provided near the end of the tracheal tube body, a first connecting tube connected to the cuff arranged near the end of the tracheal tube body, a buffer balloon installed at one end of the first connecting tube, a syringe connection port provided at one end of the buffer balloon and a ventilator connection port provided at the other end of the tracheal tube body, and a second connecting tube and a pressure monitoring mechanism. The second connecting pipe, one end of the second connecting pipe is provided with a pressure monitoring mechanism;

The pressure monitoring mechanism includes a cylinder, a piston chamber, a piston, a round rod, a spring, a through hole, a first marking area and a second marking area. The cylinder is connected to one end of the second connecting pipe. A piston chamber is arranged inside the cylinder, a piston is installed in the piston chamber, a round rod is installed in the middle of one side of the piston, a spring is sleeved on the round rod on one side of the piston, a first marking area is set on the round rod near the middle, and a second marking area is set on one side of the first marking area.

Preferably, the cylinder is provided with a passage hole at a position corresponding to the round rod.

Preferably, the surface of the first marking area is sprayed with red pigment, and the surface of the second marking area is sprayed with green pigment.

Preferably, the diameter of the round rod is smaller than that of the piston.

Preferably, the diameter of the spring is smaller than that of the piston and larger than that of the passing hole.

Preferably, both the first connecting tube and the second connecting tube are plastic tubes made of a medical material.

Beneficial effects: when the utility model is used, when the tracheal intubation tube is inserted into the airway to reach the target depth, the syringe is connected to the syringe connection port, and the syringe is used to pump air. The injected gas enters the inside of the cuff through the first connecting pipe, and the cuff becomes larger for positioning. At the same time, the injected gas enters the piston chamber of the cylinder through the second connecting pipe. During the process of pressurization, the gas pushes the piston to move against the elastic force of the spring. When the second marking area on the rod is stretched out, the green color in the second marking area is displayed at this time, which is an appropriate pressure. When inflating, when the first marking area is stretched out, the red color in the first marking area is displayed at this time, indicating that the pressure is too high, which is easy to cause damage to the inner wall of the trachea, which is convenient for observation and monitoring when the cuff is inflated, and is easy to use.

The utility model has a novel structure and an ingenious concept, which is convenient for observation and monitoring when the cuff is inflated, so that the cuff is within a suitable pressure value, avoiding damage to the inner wall of the trachea caused by excessive pressure of the cuff, and intuitively displaying the pressure without using a pressure gauge, so no air leakage is required and no air supplementation is required.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a schematic diagram of the internal structure of the pressure monitoring mechanism of the utility model;

Fig. 3 is the structural representation of A in Fig. 2 of the utility model;

Fig. 4 is a three-dimensional structural schematic diagram of a round rod of the present invention;

Symbols in the figure: 1, tube catheter body; 3, cuff; 4, first connecting tube; 5, cushioning air bag; 6, syringe connecting port; 7, ventilator connecting port; 8, second connecting tube; 9, pressure monitoring mechanism; 901, cylinder; 902, piston cavity; 903, piston; 904, round rod;

Detailed ways

Below in conjunction with accompanying drawing 1-4, the specific embodiment of the present utility model is described in further detail.

Embodiment 1, given by Figures 1-4, the utility model provides a tracheal intubation pressure measuring device, comprising a tracheal tube body 1, a cuff 3 provided near the end of the tracheal tube body 1, a first connecting tube 4 connected to the cuff 3 arranged near the end of the tracheal tube body 1, a buffer balloon 5 installed at one end of the first connecting tube 4, a syringe connection port 6 provided at one end of the buffer balloon 5 and a ventilator connection port 7 provided at the other end of the tracheal tube body 1, and a second connecting tube 8 and A pressure monitoring mechanism 9, a second connecting tube 8 communicating with the cuff 3 is provided near one end of the endotracheal tube body 1, and a pressure monitoring mechanism 9 is provided at one end of the second connecting tube 8;

The pressure monitoring mechanism 9 includes a cylinder 901, a piston chamber 902, a piston 903, a round rod 904, a spring 905, a passage hole 906, a first marking area 907 and a second marking area 908. The cylinder 901 communicates with one end of the second connecting pipe 8. The inside of the cylinder 901 is provided with a piston chamber 902. A piston 903 is installed in the piston chamber 902. A round rod 904 is installed in the middle of one side of the piston 903. 04 is sleeved with a spring 905, the round rod 904 is provided with a first marking area 907 near the middle, and one side of the first marking area 907 is provided with a second marking area 908. The setting of the first marking area 907 and the second marking area 908 needs to inflate the cuff 3 in advance. When it is inflated to a suitable pressure range, it will be marked as the second marking area 908.

Specific use: when the utility model is in use, when the endotracheal tube body 1 is inserted into the airway to reach the target depth, the syringe is connected to the syringe connection port 6, and inflated through the syringe. The injected gas enters the inside of the cuff 3 through the first connecting tube 4, and the cuff 3 becomes larger for positioning. At the same time, the injected gas enters the piston chamber 902 of the cylinder 901 through the second connecting tube 8. During the process of pressurization, the gas pushes the piston 903 to overcome the elastic force of the spring 905 to move, and the piston 903 moves to push the round rod. 904 moves, and the round rod 904 protrudes from the cylinder 901. In the process of inflating the cuff 3, when the second marking area 908 on the round rod 904 stretches out, the green color in the second marking area 908 is displayed at this time, which is a suitable pressure.

Beneficial effects: the utility model has a novel structure and an ingenious concept, which is convenient for observation and monitoring when the cuff 3 is inflated, so that the cuff 3 is within an appropriate pressure value, avoiding damage to the inner wall of the trachea caused by excessive pressure of the cuff 3, and the pressure is displayed more intuitively, and no pressure gauge is needed, so no air leakage is required and no air supplementation is required.

Embodiment two

The round rod 904 in the first embodiment is inconvenient to pass through. Referring to FIG. 2 and FIG. 3 , as another preferred embodiment, the difference from the first embodiment is that the cylinder 901 is provided with a passing hole 906 at the position corresponding to the round rod 904 to facilitate the passage of the round rod 904 .

Embodiment Three

In the first embodiment, the first marking area 907 and the second marking area 908 are inconvenient to use. With reference to FIG. 1, as another preferred embodiment, the difference from the first embodiment is that the surface of the first marking area 907 is sprayed with red pigment, and the surface of the second marking area 908 is sprayed with green pigment, which is convenient for the marking of the first marking area 907 and the second marking area 908.

Embodiment Four

In the first embodiment, the round rod 904 is inconvenient to cooperate with the piston 903. With reference to Fig. 3 and Fig. 4, as another preferred embodiment, the difference from the first embodiment is that the diameter of the round rod 904 is smaller than the diameter of the piston 903, which facilitates the use of the round rod 904 and the piston 903.

Embodiment five

The installation and use of the spring 905 in the first embodiment is inconvenient. Referring to FIG. 1, as another preferred embodiment, the difference from the first embodiment is that the diameter of the spring 905 is smaller than the diameter of the piston 903 and larger than the diameter of the hole 906, which is convenient for the installation and use of the spring 905.

Embodiment six

First connecting pipe 4 and second connecting pipe 8 are inconvenient to use in embodiment one, with reference to Fig. 1, as another preferred embodiment, the difference with embodiment one is that first connecting pipe 4 and second connecting pipe 8 are plastic pipes of a kind of medical material, which is convenient for the use of first connecting pipe 4 and second connecting pipe 8.

Finally, it should be noted that: the above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. An endotracheal intubation pressure measuring device, comprising an endotracheal tube body (1), a cuff (3) arranged near the end of the endotracheal tube body (1), a first connecting tube (4) connected to the cuff (3) arranged near the end of the endotracheal tube body (1), a buffer balloon (5) installed at one end of the first connecting tube (4), a syringe connection port (6) provided at one end of the buffer balloon (5) and a ventilator connection port provided at the other end of the endotracheal tube body (1) (7), characterized in that it also includes a second connecting tube (8) and a pressure monitoring mechanism (9), the end of the endotracheal tube body (1) is provided with a second connecting tube (8) communicating with the cuff (3), and one end of the second connecting tube (8) is provided with a pressure monitoring mechanism (9); The pressure monitoring mechanism (9) includes a cylinder (901), a piston chamber (902), a piston (903), a round rod (904), a spring (905), a passage hole (906), a first marking area (907) and a second marking area (908). The cylinder (901) is connected to one end of the second connecting pipe (8). (903), a round rod (904) is installed in the middle of one side of the piston (903), a spring (905) is sleeved on the round rod (904) on one side of the piston (903), a first marking area (907) is set on the round bar (904) near the middle, and a second marking area (908) is set on one side of the first marking area (907). 2 . The endotracheal intubation pressure measuring device according to claim 1 , characterized in that, a passage hole ( 906 ) is opened at the position of the cylinder ( 901 ) corresponding to the round rod ( 904 ). 3. The endotracheal intubation pressure measuring device according to claim 1, characterized in that, the surface of the first marking area (907) is sprayed with red pigment, and the surface of the second marking area (908) is sprayed with green pigment. 4. The endotracheal intubation pressure measuring device according to claim 1, characterized in that the diameter of the round rod (904) is smaller than the diameter of the piston (903). 5 . The endotracheal intubation pressure measuring device according to claim 1 , characterized in that, the diameter of the spring ( 905 ) is smaller than that of the piston ( 903 ) and larger than that of the passage hole ( 906 ). 6 . The endotracheal intubation pressure measuring device according to claim 1 , characterized in that, both the first connecting tube ( 4 ) and the second connecting tube ( 8 ) are plastic tubes made of a medical material.