CN211068561U - Pressure visualization artificial airway intubation tube - Google Patents

Abstract

The utility model discloses a pressure visualization artificial airway intubation, which comprises a trachea intubation, wherein the trachea intubation comprises a tube body, the rear end of the tube body is provided with an oxygen interface, the front end of the tube body is provided with an insertion hole which can be inserted into the trachea of a patient, and the outer wall of the tube body is provided with scale marks; the outer wall of one side of the tube body is fixedly provided with an inflation tube, the tube body is sleeved with an air bag, the air bag is close to the front end of the tube body, the front end of the inflation tube is communicated with the air bag, the rear end of the inflation tube is connected with one end of a three-way pipe, the rest two ends of the three-way pipe are respectively connected with a pressure gauge and an inflation valve, the pressure of the air bag can be continuously monitored, and a nursing worker can check the pressure of the air bag at any time and. Visualization during air bag gas injection can not cause too high and too low airway pressure, reduces patient aspiration and VAP risk to patient's safety has been guaranteed.

Description

A pressure visualization artificial airway intubation

technical field

The utility model belongs to the technical field of medical appliances, in particular to a pressure visualization artificial airway intubation.

Background technique

Mechanical ventilation is one of the important means to correct respiratory failure in critically ill patients. It is usually necessary to establish an artificial airway in the trachea, and use the inflatable balloon at the front of the artificial airway to ensure the airtightness of the airway and prevent the occurrence of oral secretions aspiration. . The pressure in the inflatable air bag is closely related to the airtightness and safety of the airway. The Chinese Medical Association recommends maintaining the air bag pressure at 25-30 cmH2O (1cmH2O=0.098kPa). Therefore, it is particularly important to monitor the air bag pressure and maintain it within a reasonable range. The traditional air bag pressure management methods include pinching the outer indicating bag with a finger, and using a hand-held air bag pressure gauge to measure the air bag pressure intermittently. Studies have shown that the method of pinching the outer indicator balloon often underestimates the pressure in the balloon, resulting in excessive balloon pressure, resulting in a significantly higher probability of airway-related complications than the method using a manometry device. Domestic guidelines recommend using a hand-held pressure gauge to measure the balloon pressure every 6 to 8 hours, but there is also controversy. According to the balloon pressure drop curve, some studies have concluded that the balloon pressure should be monitored every 3 hours to ensure the pressure is within a reasonable range. Frequent pressure measurement can increase the workload of clinical care. In clinical practice, the use of hand-held pressure gauges is intermittent measurement. The specific method is to use the hand-held pressure gauge to inflate the air bag to the recommended range and then disconnect it. The watch is connected to the air bag, this pressure measurement method often causes the air bag pressure to decay and cannot maintain the normal air bag pressure.

There are also studies using a continuous air bag pressure measurement device for pressure measurement, but this device is expensive, cannot be popularized in primary hospitals, and requires an external device, which makes nursing operations inconvenient.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide an artificial airway intubation tube with pressure visualization, which can display the pressure of the air bag in real time during intubation and nursing, and solves the problems existing in the background technology.

In order to solve the above-mentioned technical problem, the purpose of this utility model is achieved like this:

A pressure visualization artificial airway intubation, comprising

A tracheal intubation tube comprises a tube body, the rear end of the tube body has an oxygen interface, the front end of the tube body has an insertion port that can be inserted into the trachea of a patient, and a scale line is arranged on the outer wall of the tube;

An inflatable tube is fixed on the outer wall of one side of the tube body, and an airbag is sleeved on the tube body. The airbag is close to the front end of the tube body. One end of the three-way pipe fitting is connected with a pressure gauge and an inflation valve respectively.

On the basis of the above solution and as a preferred solution of the above solution: the three-way pipe fitting is an inclined three-way, which includes a straight pipe and a branch pipe, and the branch pipe and the straight pipe have an included angle.

On the basis of the above solution and as a preferred solution of the above solution, the pressure gauge is communicated with the branch pipe, and the inflation pipe and the inflation valve are respectively connected to both ends of the straight pipe.

On the basis of the above scheme and as a preferred scheme of the above scheme: the pressure gauge includes a transparent or translucent air chamber, the outer surface of the air chamber is provided with a pressure scale value, and the air chamber is provided with a fixed end, A movable indication end and a spring arranged between the fixed end and the movable indication end, the fixed end is fixedly connected to one end of the air chamber, and the movable indication end can move along the The inner wall of the gas chamber slides, the fixed end and the movable indicating end are tightly connected with the inner wall of the gas chamber, and the spring pressure gauge is also provided with an air inlet for filling the gas to be measured. It enters the air chamber through the air inlet, and acts on the side of the movable indicating end close to the spring.

On the basis of the above solution and as a preferred solution of the above solution: the air chamber is a cylindrical air chamber, the fixed end is a cylindrical fixed end, and the movable indicating end is a cylindrical movable indicating end.

On the basis of the above solution and as a preferred solution of the above solution: the movable indicating end includes a sealing piston and an indicating piston, one end of the sealing piston is connected to the spring, and the indicating piston is fixed to another part of the sealing piston one end.

On the basis of the above solution and as a preferred solution of the above solution, the sealing piston is a bowl-shaped sealing piston, and the open end of the sealing piston faces one side of the spring.

On the basis of the above scheme and as a preferred scheme of the above scheme: the fixed end is provided with an internal thread, the end of the air chamber connected to the fixed end is provided with an external thread, and the fixed end and the air chamber pass through The external thread and the internal thread are connected in cooperation with each other.

Compared with the prior art, the present utility model has the following outstanding and beneficial technical effects:

1. Visualization technology is convenient for monitoring airbag pressure.

2. Continuously monitor the airbag pressure.

3. No external device is required, reducing the pressure attenuation of the airbag and reducing the workload of nurses.

4. Reduce the risk of aspiration and VAP.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Figure 2 is an exploded schematic diagram of the pressure gauge.

FIG. 3 is a partial enlarged view A. FIG.

Figure 4 is a schematic diagram of the connection structure between the three-way pipe fitting and the pressure gauge.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments. Obviously, the described embodiments are only a part of the present application. examples, but not all examples. Based on the given embodiments, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, Rather than indicating or implying that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, it should not be construed as a limitation on the application.

In the description of the present application, the terms "first", "second", etc. are only used for description purposes, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features.

See Figure 1, a pressure visualization artificial airway intubation consisting of

The tracheal intubation includes a tube body 1, the rear end of the tube body is an oxygen interface 2, the front end of the tube body is an insertion port 4 with a Murphy hole 3, and a scale line 8 that can indicate the insertion depth of the tracheal intubation is provided on the outer wall of the tube. , the position of the scale line 20-26cm on the outer wall of the tracheal intubation tube is designed as a frosted surface;

An inflatable tube 5 is adhered to the outer wall of one side of the tube body, and an airbag 6 is sleeved on the tube body 1. The airbag 6 is close to the front end of the tube body. One end is connected, and the other two ends of the three-way pipe piece 10 are respectively connected with a pressure gauge 9 and an inflation valve 7 .

The tee fitting 10 is an inclined tee, which includes a straight pipe 101 and a branch pipe 102 . The branch pipe 102 and the straight pipe 101 have an included angle. Specifically, in this embodiment, the included angle is preferably an acute angle.

Preferably, as shown in FIG. 4 , the pressure gauge 9 is communicated with the branch pipe 102 , and the charging pipe 5 and the charging valve 7 are respectively connected to the first end 1011 and the second end 1012 of the straight pipe 101 , so that the purpose of this connection is not to affect the original The operation and prevention of the inflation valve, while the pressure gauge 9 can be implemented to display the current line pressure, that is, the pressure in the airbag 6, during the process of inflating the airbag through the inflation valve 7 through the inflation tube 5 until the airbag pressure is maintained at 25～30cmH2O (1cmH2O=0.098kPa) means that the inflation pressure of the airbag reaches the optimum pressure value, then the inflation valve 7 can be closed and the inflation device can be disconnected.

After the balloon intubation is inserted, the purpose of inflating the balloon is to close the gap between the trachea and the intubation, so as to avoid air leakage and inhalation of gastric contents, so the pressure in the balloon must always be maintained at a suitable pressure The inflated volume of the balloon can be maintained within the range, so that the balloon seals the space between the trachea and the intubation; therefore, in addition to monitoring the pressure of the balloon during the process of tracheal intubation, monitoring is still required at the end of the tracheal intubation nursing phase. It is particularly important to maintain the balloon pressure within a reasonable range. Domestic guidelines recommend using a hand-held pressure gauge to measure the balloon pressure every 6 to 8 hours, but there is also controversy. According to the balloon pressure drop curve, some studies have concluded that the balloon pressure should be measured every 3 hours. Only one monitoring can ensure that the pressure is within a reasonable range, but frequent pressure measurement can increase the workload of clinical care. In clinical practice, the use of hand-held pressure gauges is intermittent measurement. The specific method is to use the hand-held pressure gauge to inflate the air bag to the recommended range. Disconnect the connection, and then connect the pressure gauge to the airbag when measuring the airbag pressure. This pressure measurement method often causes the airbag pressure to decay and cannot maintain the normal airbag pressure; in this embodiment, the inflation tube and the pressure gauge are kept connected through a three-way pipe Whether it is in the inflation stage or after the inflation valve is closed, it can always display the pressure in the air bag. There is no such thing as the traditional method. The pressure gauge is connected to the air bag through the inflation valve several times. The loss of gas entering the air bag leads to the problem of air bag pressure attenuation.

Specifically, the tracheal intubation tube is a disposable product, so in order to reduce the cost of the pressure gauge and thus reduce the medical expenses paid by the patient, see FIG. 2 , in this embodiment, the pressure gauge preferably includes a transparent or translucent air chamber 91. The air chamber 91 There is a pressure scale value on the outer surface of the air chamber 91, a fixed end 94, a movable indication end 93 and a spring 92 arranged between the fixed end 94 and the movable indication end 93 are arranged in the air chamber 91, and the fixed end 94 is fixedly connected to the air chamber 91. One end, the movable indicating end 93 can slide along the inner wall of the air chamber 91 under the action of the spring 92, the fixed end 94 and the movable indicating end 93 are tightly connected with the inner wall of the air chamber 91, and the connecting end of the air chamber and the fixed end 94 has an opening, The opening is an air inlet, and the gas to be tested enters the air chamber 91 through the air inlet, and acts on the side of the movable indicating end 93 close to the spring 92 . Preferably, the air chamber 91 is a cylindrical air chamber 91, the fixed end 94 is a cylindrical fixed end 94, and the movable indicating end 93 is a cylindrical movable indicating end 93. The cylindrical air chamber 91 and the movable indicating end 93 make the movable indicating end 93. 93 has better sealing performance with the air chamber 91, and can slide freely in the air chamber 91.

Further, the movable indicating end 93 includes a sealing piston 95 and an indicating piston 96 , one end of the sealing piston 95 is connected to the spring 92 , and the indicating piston 96 is fixedly connected to the other end of the sealing piston 95 . The sealing piston 95 is a bowl-shaped sealing piston 95 , and the open end of the sealing piston 95 faces the spring 92 . The sealing performance of the rubber sealing piston 95 and the air chamber 91 is better, so that the air pressure measurement is more accurate. tight, making the sealing performance better and the measured pressure more accurate.

Working principle: When the pressure gauge is in the initial position, the spring 92 is in a natural state, that is, neither stretched nor compressed, which indicates that the indicator line on the piston 96 is aligned with the zero scale of the pressure scale value on the air chamber 91, and the air chamber The air inlet on 91 connects the air chamber 91 with the part that needs to measure the air pressure. When the measurement is required, the gas enters the air chamber 91 from the air inlet, and the air chamber 91 communicates with the measured space. The measured air pressure is the same, the pressure of the gas acts on the side of the movable indicating end 93 close to the spring 92, and pushes the movable indicating end 93 to move along the air chamber 91 away from the fixed end 94, and the spring 92 is stretched. When the pulling force of the end 93 is equal to the pressure of the gas in the air chamber 91, the movable indicating end 93 reaches the equilibrium state. At this time, the scale value aligned with the indicating line on the indicating piston 96 is the air pressure value of the measured space.

Specifically, both ends of the spring 92 are provided with hooks as shown in FIG. 3 , the fixed end 94 and the movable indicating end 93 are respectively provided with hook holes matched with the hooks 97 .

The fixed end 94 is provided with an internal thread, the air chamber 91 is connected with the fixed end 94 and is provided with an external thread, the fixed end 94 is threadedly connected to the air chamber 91, the open end of the branch pipe 102 has an external thread, and the fixed end 94 has a sufficient width so that After it is connected with the actual internal thread, there is still enough internal thread to connect with the external thread on the branch pipe 102; in addition, in order to prevent air leakage at the threaded connection, it is preferable to have a gasket between the opposite ends of the air chamber 1 and the branch pipe 102 , after the air chamber 1 and the fixed end 94, the branch pipe 102 and the fixed pipe 94 are tightened, the end of the air chamber 1 and the end of the branch pipe 102 are pressed against the sealing surface of the gasket, thereby forming a squeeze on the gasket. The threaded connection is closed to prevent it from leaking gas; of course, the gasket has a gas passage for connecting the gas chamber to the branch pipe.

Preferably, the display pressure range of the pressure gauge is 0-60mm cmH2O, and there is a clear mark at the normal pressure (25-30cmH2O) to remind the nursing staff to maintain the normal air bag pressure, and the mark can be used at the position of (25-30cmH2O) The green background color is used for marking, and the scale line is preferably black, so that the current pressure indication value can be clearly seen under the condition of obvious identification.

As a result, the visual artificial airway intubation of the present application can be visualized during air bag insufflation and nursing process, and the air bag pressure can be continuously monitored. Nursing staff can check the air bag pressure at any time, and inflate and deflate through the deflation valve in time. It will not cause the airway pressure to be too high or too low, reducing the risk of patient aspiration and VAP, thus ensuring patient safety.

The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention shall be covered by the present invention. within the scope of protection of the utility model.

Claims (7)

1. a pressure visualization artificial airway intubation, is characterized in that, comprises A tracheal intubation tube comprises a tube body, the rear end of the tube body has an oxygen interface, the front end of the tube body has an insertion port that can be inserted into the trachea of a patient, and a scale line is arranged on the outer wall of the tube; An inflatable tube is fixed on the outer wall of one side of the tube body, and an airbag is sleeved on the tube body. The airbag is close to the front end of the tube body. One end of the three-way pipe fitting is connected with a pressure gauge and an inflation valve respectively; The pressure gauge includes a transparent or translucent air chamber, the outer surface of the air chamber is provided with a pressure scale value, and the air chamber is provided with a fixed end, a movable indicating end, and a fixed end and a movable indicating end. a spring between the indicating ends, the fixed end is fixedly connected to one end of the air chamber, the movable indicating end can slide along the inner wall of the air chamber under the action of the spring, the fixed end and the The movable indicating ends are all closely connected with the inner wall of the air chamber, and the pressure gauge is also provided with an air inlet for filling the measured gas, and the measured gas enters the air chamber through the air inlet and acts on the air chamber. The active indicating end is adjacent to the side of the spring. 2. A pressure visualization artificial airway intubation according to claim 1, characterized in that: the three-way pipe fitting is an inclined three-way, which comprises a straight pipe and a branch pipe, the branch pipe and the straight pipe Has an angle. 3. A pressure visualization artificial airway intubation tube according to claim 2, characterized in that: the pressure gauge is communicated with the branch tube, and the inflation tube and the inflation valve are respectively connected to both ends of the straight tube . 4 . The pressure visualization artificial airway intubation according to claim 3 , wherein the air chamber is a cylindrical air chamber, the fixed end is a cylindrical fixed end, and the movable indicating end is 4 . Indicates the end of the cylindrical activity. 5 . The pressure visualization artificial airway intubation according to claim 4 , wherein the movable indicating end comprises a sealing piston and an indicating piston, one end of the sealing piston is connected to the spring, and the indicating piston is 5 . It is fixed on the other end of the sealing piston. 6 . The pressure visualization artificial airway cannula according to claim 5 , wherein the sealing piston is a bowl-shaped sealing piston, and the open end of the sealing piston faces one side of the spring. 7 . 7. A pressure visualization artificial airway intubation tube according to claim 1, characterized in that: the fixed end is provided with an internal thread, and the end connecting the air chamber to the fixed end is provided with an external thread, so The fixed end and the air chamber are connected through the cooperation of the external thread and the internal thread.

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