CN211068561U

CN211068561U - Pressure visualization artificial airway intubation tube

Info

Publication number: CN211068561U
Application number: CN201920833944.5U
Authority: CN
Inventors: 徐笑月; 徐小燕; 高菊文; 张美琪
Original assignee: First Hospital of Jiaxing
Current assignee: First Hospital of Jiaxing
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-07-24
Anticipated expiration: 2029-06-04

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

Pressure visualization artificial airway intubation tube

Technical Field

The utility model belongs to the technical field of medical instrument, specifically speaking relates to a visual artifical air flue intubate of pressure.

Background

Mechanical ventilation is one of important means for correcting respiratory failure of critical patients, an artificial airway in an trachea usually needs to be established during implementation, the airtightness of the airway is ensured by virtue of an inflatable air bag at the front end of the artificial airway, and meanwhile, oral secretion aspiration is prevented. The pressure in the inflatable air bag is closely related to the tightness and safety of an air passage, and the Chinese medical society recommends that the air bag pressure is maintained at 25-30 cmH2O (1cmH2O is 0.098kPa), so that the monitoring of the air bag pressure and the maintenance of the air bag pressure in a reasonable range are particularly important. The traditional air bag pressure management mode comprises the steps of pinching an external indicating air bag by fingers, and intermittently measuring air bag pressure by using a handheld air bag pressure gauge. Research shows that the method of indicating the saccule by pinching the outer part with fingers can often underestimate the pressure in the saccule, so that the pressure in the saccule is too high, and the probability of causing the related complication of the air passage is obviously higher than that of the method using the pressure measuring device. The method is characterized in that the handheld pressure gauge is recommended to be applied to measure the pressure of the air bag every 6-8 hours in the domestic guideline, but the pressure can be guaranteed in a reasonable range only by monitoring the pressure of the air bag every 3 hours according to a balloon pressure reduction curve in some researches, the workload of clinical care can be increased by frequent pressure measurement, in clinic, the use method of the handheld pressure gauge is intermittent measurement, the handheld pressure gauge is used for inflating the air bag to a recommended range and then disconnecting the air bag, the pressure gauge is connected with the air bag when the pressure of the air bag is measured, the pressure measurement method usually causes the pressure attenuation of the air bag, and the normal pressure of the air bag cannot be maintained.

The continuous air bag pressure measuring device is also used for measuring pressure, but the device is expensive and cannot be popularized in primary hospitals, and an external device is required, so that the nursing operation is inconvenient.

Disclosure of Invention

The utility model aims at providing a visual artifical air flue intubate of pressure, it can carry out real-time display to the pressure of gasbag in intubate and nursing process, has solved the problem that exists among the background art.

In order to solve the technical problem, the purpose of the utility model is to realize like this:

a pressure visualized artificial airway cannula comprises

The trachea cannula 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 pipe body is fixedly provided with an inflation pipe, an air bag is sleeved on the pipe body and is close to the front end of the pipe body, the front end of the inflation pipe is communicated with the air bag, the rear end of the inflation pipe is connected with one end of a three-way pipe, and the other two ends of the three-way pipe are respectively connected with a pressure gauge and an inflation valve.

On the basis of the above scheme and as a preferable scheme of the scheme: the three-way pipe fitting is an inclined three-way pipe and comprises a straight-through pipe and a branch pipe, and an included angle is formed between the branch pipe and the straight-through pipe.

On the basis of the above scheme and as a preferable scheme of the scheme: the pressure gauge is communicated with the branch pipe, and the inflation pipe and the inflation valve are respectively connected to two ends of the straight pipe.

On the basis of the above scheme and as a preferable scheme of the scheme: the manometer is including being transparent or translucent air chamber, the surface of air chamber is equipped with the pressure scale interval, be equipped with stiff end, activity instruction end in the air chamber and set up in the stiff end with the spring between the activity instruction end, fixed end fixed connection in the one end of air chamber, the activity instruction end is in can follow under the effect of spring the inner wall of air chamber slides, the stiff end with the activity instruct the end all with the inner wall zonulae occludens of air chamber, the spring pressure table still is equipped with the air inlet that is used for filling the gas under test, and the gas under test passes through the air inlet is gone into in the air chamber, and acts on the activity instructs the end to be close to one side of spring.

On the basis of the above scheme and as a preferable scheme of the scheme: the air chamber is columniform air chamber, the stiff end is columniform stiff end, the activity is instructed the end for columniform activity.

On the basis of the above scheme and as a preferable scheme of the scheme: the movable indicating end comprises a sealing piston and an indicating piston, one end of the sealing piston is connected with the spring, and the indicating piston is fixedly connected to the other end of the sealing piston.

On the basis of the above scheme and as a preferable scheme of the scheme: the sealing piston is a bowl-shaped sealing piston, and the opening end of the sealing piston faces to one side of the spring.

On the basis of the above scheme and as a preferable scheme of the scheme: the stiff end is equipped with the internal thread, the air chamber with the one end that the stiff end is connected is equipped with the external screw thread, the stiff end with the air chamber passes through the external screw thread with the internal screw thread cooperation is connected.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. visualization technology, the gasbag pressure of convenient monitoring.

2. The balloon pressure was monitored continuously.

3. Does not need an external device, reduces the pressure attenuation of the air bag and lightens the workload of nurses.

4. And the risk of aspiration and VAP is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an exploded view of the pressure gauge.

Fig. 3 is a partially enlarged view a.

FIG. 4 is a schematic view of the connection structure of the tee pipe and the pressure gauge.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

In the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.

Referring to fig. 1, the pressure visualization artificial airway cannula comprises

The trachea cannula comprises a tube body 1, wherein the rear end of the tube body is provided with an oxygen interface 2, the front end of the tube body is provided with an insertion hole 4 with a Murphy hole 3, the outer wall of the tube body is provided with a scale mark 8 capable of indicating the insertion depth of the trachea cannula, and the position of the scale mark 20-26cm on the outer wall of the tube body of the trachea cannula is designed into a frosted surface;

an inflation tube 5 is adhered to the outer wall of one side of the tube body, an air bag 6 is sleeved on the tube body 1, the air bag 6 is close to the front end of the tube body, the front end of the inflation tube 5 is communicated with the air bag 6, the rear end of the inflation tube 5 is connected with one end of a three-way pipe fitting 10, and the other two ends of the three-way pipe fitting 10 are respectively connected with a pressure gauge 9 and an inflation valve 7.

The tee fitting 10 is a mitre tee comprising a straight pipe 101 and a branch pipe 102, wherein the branch pipe 102 and the straight pipe 101 form an included angle, and particularly, the included angle is preferably an acute angle in the embodiment.

Preferably, as shown in fig. 4, the pressure gauge 9 is communicated with the branch pipe 102, the inflation pipe 5 and the inflation valve 7 are respectively connected to the first end 1011 and the second end 1012 of the straight pipe 101, so that the operation and prevention of the original inflation valve are not affected, and at the same time, the pressure gauge 9 can display the current pipeline pressure, i.e. the pressure in the airbag 6, during the process that the inflation device inflates the airbag through the inflation valve 7 via the inflation pipe 5, until the airbag pressure is maintained at 25-30 cmH2O (1cmH2O ═ 0.098kPa), the inflation pressure of the airbag reaches the optimal pressure value, and then the inflation valve 7 can be closed, and the inflation device can be disconnected.

After the air bag intubation tube is inserted, the air bag is expanded to seal a cavity gap between the trachea and the intubation tube, so that air leakage and suction of stomach contents can be avoided, the expanded volume of the air bag can be kept only by keeping the pressure in the air bag within a proper pressure range all the time, and the cavity gap between the trachea and the intubation tube is sealed by the air bag; therefore, except for the pressure of the air bag which needs to be monitored in the process of trachea intubation, the pressure of the air bag still needs to be monitored and maintained in a reasonable range at the end of the nursing stage of the trachea intubation is particularly important, the national guidelines recommend that the pressure of the air bag is measured for 1 time every 6-8 h by using a handheld pressure gauge, but there is a controversy that the pressure of the air bag can be ensured in the reasonable range only by monitoring the pressure of the air bag for 1 time every 3h according to a descending curve of the pressure of the air bag, but frequent pressure measurement can increase the workload of clinical nursing, in clinic, the use method of the handheld pressure gauge is intermittent measurement, the specific method is that the connection is disconnected after the air bag is inflated to the recommended range by using the handheld pressure gauge, the pressure gauge is connected with the air bag when the pressure of the air bag is measured; in the embodiment, the inflation pipe and the pressure gauge are kept in a communicated state through the three-way pipe, the pressure in the air bag can be displayed all the time no matter in an inflation stage or after the inflation valve is closed, the problem that the pressure gauge is communicated with the air bag through the inflation valve for many times in the traditional method, and the air bag is attenuated due to the fact that the pressure gauge is communicated with the air bag through the inflation valve once.

Specifically, trachea cannula is disposable, so in order to reduce the cost of the pressure gauge and thereby reduce the medical expense of patient expenditure, see fig. 2, this embodiment is preferred that the pressure gauge includes being transparent or translucent air chamber 91, the surface of air chamber 91 is equipped with the pressure scale interval, be equipped with stiff end 94 in the air chamber 91, activity instruction end 93 and set up spring 92 between stiff end 94 and activity instruction end 93, stiff end 94 fixed connection is in the one end of air chamber 91, activity instruction end 93 can slide along the inner wall of air chamber 91 under the effect of spring 92, stiff end 94 and activity instruction end 93 all are connected with the inner wall zonulae occludens of air chamber 91, air chamber and stiff end 94 link have the opening, this opening is the air inlet, the gas under test passes through the air inlet and gets into in the air chamber 91, and act on the one side that activity instruction end 93. Preferably, the air chamber 91 is a cylindrical air chamber 91, the fixed end 94 is a cylindrical fixed end 94, the movable indicating end 93 is a cylindrical movable indicating end 93, the cylindrical air chamber 91 and the movable indicating end 93, so that the movable indicating end 93 and the air chamber 91 have better sealing performance and can freely slide 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 an open end of the sealing piston 95 faces the spring 92. The leakproofness that the sealed piston 95 of rubber and air chamber 91 are connected is better for atmospheric pressure measurement is more accurate, and the sealed piston 95 of bowl form can make gas pressure compress tightly sealed piston 95 and air chamber 91 inner wall from bowl form sealed piston 95 is inside, makes sealing performance better, and the pressure of surveying is more accurate.

The working principle is as follows: when the pressure gauge is in the initial position, the spring 92 is in a natural state, i.e. not stretched or compressed, which indicates that the indicating lines on the piston 96 are aligned with the zero scale of the pressure scale values on the air chamber 91, the air inlet on the air chamber 91 communicates the air chamber 91 with the portion where the air pressure needs to be measured, when measurement is needed, air enters the air chamber 91 from the air inlet, the air chamber 91 is communicated with a measured space, the air pressure in the air chamber 91 is the same as the measured air pressure, the pressure of the air acts on one side of the movable indicating end 93 close to the spring 92, the movable indicating end 93 is pushed to move along the air chamber 91 in the direction away from the fixed end 94, the spring 92 is stretched, when the pulling force of the spring 92 on the movable indicating end 93 is equal to the pressure of the gas in the gas chamber 91, the movable indicating end 93 reaches an equilibrium state, and at this time, the scale value aligned with the indicating line on the indicating piston 96 is the gas pressure value of the measured space.

Specifically, hooks shown in fig. 3 are provided at both ends of the spring 92, hook holes matched with the hook 97 are provided at the fixed end 94 and the movable indication end 93, respectively, and the hook 97 is hooked in the hook hole 98.

The fixed end 94 is provided with internal threads, the end of the air chamber 91 connected with the fixed end 94 is provided with external threads, the fixed end 94 is in threaded connection with the air chamber 91, the opening end of the branch pipe 102 is provided with external threads, and the fixed end 94 has enough width to ensure that enough internal threads are in threaded connection with the external threads on the branch pipe 102 after being connected with the internal threads; furthermore, 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, and after the air chamber 1 and the fixed end 94 and the branch pipe 102 and the fixed pipe 94 are screwed, the end of the air chamber 1 and the end of the branch pipe 102 are all abutted against the sealing surface of the gasket, so as to press the gasket to close the threaded connection and prevent air leakage outwards; of course, the gasket has a gas passage for communicating the gas chamber with the branch pipe.

Preferably, the pressure gauge has a display pressure range of 0-60 mm cmH2O, and a visible mark is arranged at a normal pressure (25-30 cmH2O) so as to remind a nursing staff of keeping normal air bag pressure, the mark can be marked by adopting a green ground color at a (25-30 cmH2O) position, and the scale mark is preferably black, so that the current pressure indication value can be clearly seen under the condition of playing a visible mark.

From this, visual artifical air flue intubate of this application, it is visual during gasbag gas injection and the nursing process, sustainable monitoring gasbag pressure, and the nursing staff can look over gasbag pressure at any time, in time fills the gassing through the bleed valve. The over-high and over-low pressure of the air passage can not be caused, and the risk of aspiration and VAP of the patient is reduced, so that the safety of the patient is ensured.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A pressure visualization artificial airway cannula is characterized by comprising

an inflation tube is fixedly arranged on the outer wall of one side of the tube body, an air bag is sleeved on the tube body, 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, and the other two ends of the three-way pipe are respectively connected with a pressure gauge and an inflation valve;

the manometer is including being transparent or translucent air chamber, the surface of air chamber is equipped with the pressure scale interval, be equipped with stiff end, activity instruction end in the air chamber and set up in the stiff end with the spring between the activity instruction end, fixed end fixed connection in the one end of air chamber, the activity instruction end is in can follow under the effect of spring the inner wall of air chamber slides, the stiff end with the activity instruct the end all with the inner wall zonulae occludens of air chamber, the manometer still is equipped with and is used for filling into the air inlet that is surveyed the gas, is surveyed the gas and passes through in the air inlet enters into the air chamber, and acts on the activity instructs the end to be close to one side of spring.

2. A pressure visualizing artificial airway cannula according to claim 1 wherein: the three-way pipe fitting is an inclined three-way pipe and comprises a straight-through pipe and a branch pipe, and an included angle is formed between the branch pipe and the straight-through pipe.

3. A pressure visualizing artificial airway cannula according to claim 2 wherein: the pressure gauge is communicated with the branch pipe, and the inflation pipe and the inflation valve are respectively connected to two ends of the straight pipe.

4. A pressure visualizing artificial airway cannula according to claim 3 wherein: the air chamber is columniform air chamber, the stiff end is columniform stiff end, the activity is instructed the end for columniform activity.

5. A pressure visualizing artificial airway cannula 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 with the spring, and the indicating piston is fixedly connected to the other end of the sealing piston.

6. A pressure visualizing artificial airway cannula according to claim 5 wherein: the sealing piston is a bowl-shaped sealing piston, and the opening end of the sealing piston faces to one side of the spring.

7. A pressure visualizing artificial airway cannula according to claim 1 wherein: the stiff end is equipped with the internal thread, the air chamber with the one end that the stiff end is connected is equipped with the external screw thread, the stiff end with the air chamber passes through the external screw thread with the internal screw thread cooperation is connected.