CN220125281U

CN220125281U - Tracheal intubation device with pressure prompt function

Info

Publication number: CN220125281U
Application number: CN202223394205.1U
Authority: CN
Inventors: 霍然
Original assignee: Shenzhen Hospital University of Hong Kong
Current assignee: Shenzhen Hospital University of Hong Kong
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-12-05
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to the field of medical appliances, in particular to a tracheal intubation device with a pressure prompt function, which comprises: the balloon is connected with the air bag, and the balloon and the air bag are inflated by inflating the balloon; the inflated balloon will push the elastic structure into motion. The balloon is inflated to different degrees, so that the elastic structure is respectively in a state of being connected with the first circuit, the second circuit or both the first circuit and the second circuit. When the elastic structure is connected with the first circuit or the second circuit, the corresponding first prompter or the second prompter sends out a prompt, and when the elastic structure is not connected with the first circuit and the second circuit, the pressure prompt device does not send out a prompt. The air pressure of the balloon is approximately opposite to the air pressure of the air bag, so that the air pressure of the air bag can be judged according to the bulge degree of the balloon, and the air pressure of the air bag is correspondingly prompted according to the visual observation of the first prompter and the second prompter, so that a medical staff can clearly judge whether the air pressure of the current air bag is proper or not.

Description

Tracheal intubation device with pressure prompt function

Technical Field

The utility model relates to the field of medical appliances, in particular to a tracheal intubation device with a pressure prompt function.

Background

The trachea cannula is a special cannula, is placed into a trachea or a bronchus through the oral cavity or the nasal cavity of a patient through the glottis, provides good respiratory conditions for the respiratory tract of the patient to be unobstructed, ventilation and oxygen supply, respiratory tract suction and the like, and is an important measure for rescuing patients with respiratory dysfunction.

The ends of the endotracheal tube are substantially provided with a balloon which, when inflated properly, is sufficient to close just the gap between the endotracheal tube and the patient's trachea. If the air bag is insufficient in inflation amount, the trachea cannula is easy to fall off, so that secretion of the respiratory tract can flow downwards along the outer wall of the air bag; if the air charge of the air bag is too large, the air bag is easy to generate excessive pressure on the air pipe of a patient, so that the ischemic necrosis of the air pipe wall is caused; therefore, the inflation in the airbag needs to be proper. In addition, in clinical practice, the inflated balloon will be gradually relaxed, so that the balloon cannot effectively close the gap between the tracheal cannula and the trachea of the patient.

The pressure of the air bag can not be displayed by the conventional clinical commonly used trachea cannula, and medical staff is required to evaluate the pressure in the air bag according to subjective experience, as shown in fig. 1, the medical staff can not clearly know whether the air pressure of the air bag reaches a proper value or not, and the judgment can be carried out only according to self experience or the touch sense of the trachea of a patient to the trachea cannula.

Therefore, the prior art has a disadvantage and needs to be further improved.

Disclosure of Invention

Based on the above problems, the utility model aims to provide a pressure-prompting tracheal intubation device so as to solve the problem that the existing tracheal intubation cannot detect the pressure of an air bag.

The utility model aims at realizing the following technical scheme:

the utility model provides a tracheal cannula for pressure detection, which comprises: the trachea cannula comprises a main cannula, an air bag and an inflation tube, wherein the air bag is arranged at the tail end of the main cannula and is connected with the inflation tube, and the pressure prompt device inflates the air bag through the inflation tube;

the pressure prompt device comprises a shell, a balloon, an elastic structure, a first circuit and a second circuit, wherein the balloon and the elastic structure are arranged in the shell, the first circuit is provided with a first prompter, and the second circuit is provided with a second prompter;

the air bag is communicated with the balloon through an inflation tube, the balloon is inflated to inflate the air bag, and the balloon with different degrees of inflation drives the elastic structure to be connected with the first circuit, or connected with the second circuit, or not connected with the first circuit and the second circuit; under the condition that the elastic structure is connected with the first circuit, the first prompter sends out a prompt, under the condition that the elastic structure is connected with the second circuit, the second prompter sends out a prompt, and under the condition that the elastic structure is not connected with the first circuit and the second circuit, the first prompter and the second prompter do not send out a prompt.

The elastic structure comprises a deformation sheet, a first connecting contact and a second connecting contact, wherein the first connecting contact and the second connecting contact are arranged on the deformation sheet and are positioned at one side far away from the saccule; the deformation sheet is fixedly arranged in the shell, the deformation sheet and the shell form a spherical cavity, the balloon is positioned in the spherical cavity, and the deformation sheet is extruded through expansion of the balloon to different degrees, so that the first connecting contact is connected with the first circuit, the second connecting contact is connected with the second circuit, or the first connecting contact and the second connecting contact are not connected with any one of the first circuit and the second circuit.

The elastic structure comprises a pressing block, a spring, a first connection contact and a second connection contact, wherein the pressing block is movably arranged on the inner wall of the shell, the pressing block and the shell form a ball cavity, and the ball bag is positioned in the ball cavity; one end of the spring in a natural state is arranged at the bottom of the shell, the other end of the spring abuts against the pressing block, and the first connecting contact and the second connecting contact are both arranged on the pressing block; the pressing block compresses the spring through the expansion of the balloon with different degrees, so that the first connecting contact head is connected with the first circuit, or the first connecting contact head is connected with the second circuit, or the first connecting contact head and the second connecting contact head are not connected with any one of the first circuit and the second circuit.

A first connecting sheet and a second connecting sheet are arranged in the shell, and the first connecting sheet and the second connecting sheet are arranged at intervals; the first connecting sheet is connected with the first circuit, and the second connecting sheet is connected with the second circuit; the elastic structure is extruded through different expansion of the balloon, so that the first connecting contact head is connected with the first connecting sheet, or the second connecting contact head is connected with the second connecting sheet, or the first connecting contact head and the second connecting contact head are not connected with any one of the first connecting sheet and the second connecting sheet.

The first prompter is a first light-emitting device, the second prompter is a second light-emitting device, and the light-emitting states of the first light-emitting device and the second light-emitting device are different.

The pressure prompt device further comprises a three-way pipe, the three-way pipe is arranged on the shell, a first interface of the three-way pipe is used for inflating, a second interface of the three-way pipe is detachably connected with the inflation pipe, and a third interface of the three-way pipe is detachably connected with the balloon.

The inflation tube is provided with a plug, an internal thread is arranged in the plug, an external thread is arranged on the second interface of the three-way tube, and the plug is in threaded connection with the second interface of the three-way tube.

A pressure-detecting endotracheal intubation device comprising: the trachea cannula comprises a main cannula, an air bag and an air charging tube, wherein the air bag is arranged at the tail end of the main cannula, and the air charging tube is connected with the air bag and is used for charging air into the air bag;

the pressure measuring device comprises a pressure sensing piece and a pressure detector, wherein the pressure sensing piece is electrically connected with the pressure detector, is attached to the main cannula and is positioned between the main cannula and the air bag.

The tracheal intubation device for pressure detection also comprises a singlechip, a third circuit, a fourth circuit and a fifth circuit, wherein the third circuit, the fourth circuit, the fifth circuit and the pressure detector are connected through the singlechip; the third circuit is provided with a third prompter, the fourth circuit is provided with a fourth prompter, and the fifth circuit is provided with a fifth prompter; and triggering the third prompter, the fourth prompter or the fifth prompter to prompt by the singlechip according to the pressure value detected by the pressure detector.

The third prompter, the fourth prompter and the fifth prompter are all arranged as light emitting devices, and the luminescent colors of the three light emitting devices are different.

The beneficial effects of the utility model are as follows: the balloon is connected with the air bag, and the balloon and the air bag are inflated by inflating the balloon; the inflated balloon will push the elastic structure into motion. The balloon is inflated to different degrees, so that the elastic structure is respectively in a state of being connected with the first circuit, the second circuit or both the first circuit and the second circuit. When the elastic structure is connected with the first circuit or the second circuit, the corresponding first prompter or the second prompter sends out a prompt, and when the elastic structure is not connected with the first circuit and the second circuit, the pressure prompt device does not send out a prompt. The air pressure of the balloon is approximately opposite to the air pressure of the air bag, so that the air pressure of the air bag can be judged according to the bulge degree of the balloon, and the air pressure of the air bag is correspondingly prompted according to the visual observation of the first prompter and the second prompter, so that a medical staff can clearly judge whether the air pressure of the current air bag is proper or not.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a prior art use schematic;

FIG. 2 is a schematic view of the tracheal intubation of the present utility model with pressure indication;

FIG. 3 is an enlarged view of a portion of the endotracheal tube apparatus of the present utility model with pressure cues;

FIG. 4 is a schematic view of another embodiment of the endotracheal intubation device of the present utility model with pressure cues;

FIG. 5 is another enlarged view of a portion of the endotracheal tube apparatus of the present utility model with pressure cues;

FIG. 6 is a schematic view of the structure of the present utility model with a tee;

FIG. 7 is a schematic view of the structure of the endotracheal intubation device of the present utility model for pressure detection;

fig. 8 is a schematic view of the tracheal intubation device for pressure detection according to the present utility model.

Wherein the reference numerals are as follows:

100-trachea cannula, 101-main cannula, 102-air bag, 103-inflation tube and 104-plug;

200-pressure prompting device, 201-shell, 202-saccule, 203-elastic structure, 204-first circuit, 205-second circuit, 206-first prompting device, 207-second prompting device, 208-first connecting piece, 209-second connecting piece, 210-deformation piece, 211-first connecting contact, 212-second connecting contact, 213-pressing block, 214-spring, 215-three-way pipe and 216-sliding block;

300-pressure measuring device, 301-pressure sensing sheet, 302-pressure detector, 303-singlechip, 304-third circuit, 305-fourth circuit, 306-fifth circuit, 307-third indicator, 308-fourth indicator, 309-fifth indicator.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

At present, the far end of the tracheal cannula is generally provided with an air bag, and when the tracheal cannula is used, the air bag is required to be inflated to a proper pressure, so that the tracheal cannula has two functions, namely, the prevention of tracheal leakage, and the fixation of the tracheal cannula, and the prevention of the tracheal cannula from falling off, are achieved. The main purpose of this is to prevent secretion in the mouth or gastric contents from regurgitating into the mouth from the stomach, and into the lungs through the gap between the tracheal tube and the trachea, thereby causing pulmonary infection.

However, if the air bag is insufficient in inflation quantity, the trachea cannula is easy to fall off, so that secretion of the respiratory tract can flow downwards along the outer wall of the air bag; if the air charge of the air bag is too large, the air bag is easy to generate excessive pressure on the air pipe of a patient, so that the ischemic necrosis of the air pipe wall is caused; in addition, in clinical practice, the inflated balloon is gradually relaxed, so that the balloon cannot effectively seal the gap between the tracheal cannula and the trachea of the patient. Therefore, it is necessary to detect the air pressure in the air bag in real time so that the medical staff can clearly judge the current state of the air bag.

Based on the above, referring to fig. 2 and 3, the present utility model provides a pressure-cued endotracheal intubation device, comprising: the trachea cannula 100 comprises a main cannula 101, an air bag 102 and an inflation tube 103, wherein the air bag 102 is arranged at the tail end of the main cannula 101, the air bag 102 is connected with the inflation tube 103, and the pressure prompting device 200 inflates the air bag 102 through the inflation tube 103;

the pressure prompt device 200 comprises a shell 201, a balloon 202, an elastic structure 203, a first circuit 204 and a second circuit 205, wherein the balloon 202 and the elastic structure 203 are arranged in the shell 201, the first circuit 204 is provided with a first prompter 206, and the second circuit 205 is provided with a second prompter 207;

the air bag 102 is communicated with the balloon 202 through the inflation tube 103, the balloon 202 inflates the air bag 102, and the balloon 202 with different degrees of inflation drives the elastic structure 203 to be connected with the first circuit 204, or connected with the second circuit 205, or not connected with the first circuit 204 and the second circuit 205; when the elastic structure 203 is connected to the first circuit 204, the first prompter 206 gives a prompt, when the elastic structure 203 is connected to the second circuit 205, the second prompter 207 gives a prompt, and when the elastic structure 203 is not connected to both the first circuit 204 and the second circuit 205, neither the first prompter 206 nor the second prompter 207 gives a prompt.

The utility model provides that the balloon 202 is connected with the air bag 102, and the balloon 202 and the air bag 102 are inflated by inflating the balloon 202; the inflated balloon 202 will push the elastic structure 203 into motion. The balloon 202 is inflated to different degrees, so that the elastic structure 203 is connected to the first circuit 204, the second circuit 205, or neither the first circuit 204 nor the second circuit 205. When the elastic structure 203 is connected to the first circuit 204 or the second circuit 205, the corresponding first indicator 206 or the second indicator 207 sends out an indication, and when the elastic structure 203 is not connected to both the first circuit 204 and the second circuit 205, the pressure indication device 200 does not send out an indication. The air pressure of the balloon 202 is approximately opposite to the air pressure of the air bag 102, so that the air pressure of the air bag 102 can be judged according to the bulge degree of the balloon 202, and the air pressure of the air bag 102 is correspondingly prompted according to the visual observation of the first prompter 206 and the second prompter 207, so that a medical staff can clearly judge whether the air pressure of the current air bag 102 is proper or not.

Specifically, the inflation tube 103 is connected to the balloon 202, and when the outside inflates the balloon 202, the balloon 202 and the balloon 102 are inflated by the gas, and the air pressure of the balloon 202 and the balloon 102 are approximately equal. The first circuit 204 and the second circuit 205 are provided with switches, and when the tracheal intubation 100 device of the utility model is used, the switches on the first circuit 204 and the second circuit 205 are turned on. When the balloon 202 is not inflated enough, the elastic structure 203 is connected with the first circuit 204, and the first prompter 206 on the first circuit 204 sends out a prompt; when the balloon 202 is inflated to a proper degree, the elastic structure 203 moves to the middle between the first circuit 204 and the second circuit 205, and at this time, the elastic structure 203 is connected with the first circuit 204 and the second circuit 205, and neither the first prompter 206 nor the second prompter 207 sends out a prompt; when balloon 202 bulges too much, then elastic structure 203 moves into connection with the second building, causing a second prompter 207 on second circuit 205 to issue a prompt.

The first prompter 206 sends a prompt to indicate that the air pressure of the balloon 202 is too small, the second prompter 207 sends a prompt to indicate that the air pressure of the balloon 202 is too large, and neither the first prompter 206 nor the second prompter 207 sends a prompt to indicate that the air pressure of the balloon 202 is proper, so that the air pressure meets the general requirements. It should be noted that, the balloon 202 is communicated with the balloon 102, and the air pressure of the balloon 202 is approximately opposite to the air pressure of the balloon 102, so that the air pressure of the balloon 202 can be used for representing the air pressure of the balloon 102, and the medical staff can judge the air pressure of the balloon 102 according to the air pressure of the balloon 202. The air pressure of the balloon 202 can be characterized by the prompts of the first prompter 206 and the second prompter 207.

For example, when the second prompter 207 sends out a prompt during the inflation of the balloon 202, the air pressure of the balloon 202 is too high, so that it can be known that the air pressure of the air bag 102 is too high, and at this time, the air bag 102 presses the air pipe wall of the human body too much, which is not beneficial to the air pipe of the human body. At this time, the air bag 102 may be properly deflated so that neither the first indicator 206 nor the second indicator 207 will be raised, and thus the air pressure of the air bag 102 is known to be at a proper value.

Further, the first indicator 206 and the second indicator 207 may be both light emitting devices, the first indicator 206 is a first light emitting device, and the second indicator 207 is a second light emitting device, and the light emitting states of the first light emitting device and the second light emitting device are different.

For example, the first prompter 206 is set to a yellow light and the second prompter 207 is set to a red light. When the switches on the first circuit 204 and the second circuit 205 are turned on, the yellow light is turned on, which indicates that the air pressure in the balloon 202 is too low, and the balloon 202 needs to be inflated continuously; when inflation is appropriate, the yellow light and the red light are not in amounts, and at this time, it can be determined that the air pressure of the balloon 202 is appropriate. According to practical experience in clinic, the inflated air bag 102 will be gradually relaxed, and when the yellow lamp is turned on, it will be explained that the air pressure of the air bag 102 will be reduced below an appropriate value at this time, and the air bag 102 will need to be inflated again.

In addition, the first prompter 206 and the second prompter 207 may be configured as buzzers, and when the first connection contact 211 is connected to the first circuit 204, the buzzers on the first circuit 204 sound, and when the second connection contact 212 is connected to the second circuit 205, the buzzers on the second circuit 205 sound.

Specifically, balloon 202 of the present utility model may be adapted according to appropriate pressure values. For example, it is currently conventional to maintain the pressure of the balloon 102 at 25-35 cmH2O, that is, the present utility model may be pre-adapted, when the air pressure of the balloon 202 is lower than 25cmH2O, the elastic structure 203 is in a state of being connected to the first circuit 204, and the yellow light is turned on; when the air pressure of the balloon 202 is between 25 and 35cm H2O, the elastic structure 203 is not connected with the first circuit 204 and the second circuit 205, and the yellow light and the red light are not lightened; when the balloon 202 has a pressure greater than 35cmH2O, then the elastic structure 203 is connected to the second circuit 205, at which point the red light is on.

In some embodiments, the elastic structure 203 includes a deformation sheet 210, a first connection contact 211, and a second connection contact 212, where the deformation sheet 210 is fixedly disposed in the housing 201, and the first connection contact 211 and the second connection contact 212 are both disposed on the deformation sheet 210. The deformation sheet 210 forms a ball cavity with the housing 201, and the balloon 202 is located in the ball cavity. When balloon 202 is inflated, balloon 202 bulges, and when balloon 202 bulges, deformation sheet 210 is squeezed, and balloon 202 bulges to different degrees, thereby squeezing deformation sheet 210 differently. Since the deformation sheet 210 is deformed by the extrusion of the balloon 202, the deformation sheet 210 moves downwards (downwards in fig. 3), and the movement of the deformation sheet 210 drives the first connecting contact head and the second connecting contact head 212 to move towards the lower end, when the deformation sheet 210 drives the first connecting contact head 211 and the second connecting contact head 212 not to be connected with any one of the first circuit 204 and the second circuit 205, the first circuit 204 and the second circuit 205 are not conducted at this moment, and the first prompter 206 and the second prompter 207 are not prompted to indicate that the current air pressure of the balloon 202 is within a proper range. The balloon 202 continues to expand, so as to push the deformation sheet 210 to deform more downwards, so that the second connection contact 212 is connected with the second circuit 205, at this time, the second circuit 205 is turned on, and the second prompter 207 sends a prompt; for example, a red light may be illuminated indicating that the current balloon 202 pressure is above the appropriate range of values.

In some embodiments, referring to fig. 4 and 5, the elastic structure 203 includes a pressing block 213, a spring 214, a first connection contact 211, and a second connection contact 212, the pressing block 213 is slidably disposed in the housing 201, the pressing block 213 and an upper half of the housing 201 form a ball cavity, and the ball 202 is located in the ball cavity. A slide rail may be provided in the housing 201, a slide block 216 is provided on the slide rail, a pressing block 213 is provided on the slide block 216, and the slide block 216 is movable on the slide rail. In the natural state of the spring 214, one end of the spring 214 is disposed at the bottom of the housing 201, the other end abuts against the pressing block 213, and the first connection contact 211 and the second connection contact 212 are disposed on the pressing block 213. When balloon 202 is inflated, balloon 202 is inflated to a degree that allows first connection contact 211 to be connected to first circuit 204, second connection contact 212 to be connected to second circuit 205, or neither first connection contact 211 nor second connection contact 212 to be connected to either of first circuit 204 and second circuit 205.

Specifically, when the balloon 202 has not been inflated to a suitable air pressure, the connection contact is connected to the first circuit 204, and the yellow light is turned on at this time, which indicates that the air pressure in the balloon 202 is too low; as the balloon 202 bulges, the bulged balloon 202 presses the pressing block 213, the pressing block 213 presses the spring 214, and the spring 214 drives the first connection contact 211 and the second connection contact 212 to be positioned between the first circuit 204 and the second circuit 205 and not connected with the first circuit 204 and the second circuit 205; at this time, neither the first prompter 206 nor the second prompter 207 issue a prompt. Continuing to expand the balloon 202, the pressing block 213 is pushed to further press the spring 214, and the spring 214 drives the second connection contact 212 to move to be connected with the second circuit 205; at this time, the second circuit 205 is turned on, and the second prompter 207 issues a prompt; for example, a red light may be illuminated indicating that the air pressure within balloon 202 is too great.

It should be noted that, whether the elastic structure 203 is the solution of sampling the deformation sheet 210 or the solution of the spring 214, the balloon 202 is located in the balloon cavity, and after the balloon 202 is inflated to a certain extent, the deformation sheet 210 or the spring 214 is squeezed, and the balloon 202 is inflated to push the deformation sheet 210 or the spring 214, and typically, the height of the balloon 202 after inflation is greater than the initial height of the balloon cavity.

In some embodiments, referring to fig. 2 to 5, a first connecting piece 208 and a second connecting piece 209 are disposed in the housing 201, and the first connecting piece 208 and the second connecting piece 209 are disposed at intervals, so that the first connecting piece 208, the second connecting piece 209, the first connecting contact 211 and the second connecting contact 212 are all conductors; the first connection piece 208 is connected to the first circuit 204, and the second connection piece 209 is connected to the second circuit 205. When the tracheal cannula 100 device of the present utility model is used, the switch on the first circuit 204 and the switch on the second circuit 205 are turned on, and the first contact head 211 is connected to the first contact piece 208 in the initial state, and at this time, the first circuit 204 is turned on, and the first indicator 206 gives an indication, and in this state, it is determined that the air pressure in the balloon 202 is too low and the proper air pressure has not been reached yet.

As the balloon 202 inflates, the inflated balloon 202 presses the elastic structure 203 such that the first connection contact 211 and the second connection contact 212 move between the first connection piece 208 and the second connection piece 209, and neither the first connection contact 211 nor the second connection contact 212 is connected to the first circuit 204 and the second circuit 205; at this time, neither the first indicator 206 nor the second indicator 207 gives an indication, and in this state, it can be determined that the air pressure in the balloon 202 is appropriate.

Continuing to inflate balloon 202, balloon 202 further bulges, pushing second connection contact 212 to move to second connection piece 209, at which time second circuit 205 is turned on and second indicator 207 issues an indication, in which state it may be determined that the air pressure within balloon 202 is too high and that it is necessary to reduce the air pressure of write balloon 202. Specifically, a deflation port may be provided on the inflation tube 103, and when the air pressure in the balloon 202 is too high, it indicates that the air pressure of the air bag 102 is too high, and at this time, the lower deflation port may be properly opened to release a small amount of air, so that the air pressure of the air bag 102 is proper. When the air is released, the pressure of the air is reduced, and the extrusion of the balloon 202 to the elastic structure 203 is reduced, so that the elastic structure 203 drives the first connection contact 211 and the second connection contact 212 to move back, for example, the first connection contact 211 and the second connection contact 212 move between the first connection piece 208 and the second connection piece 209, at this time, neither the first circuit 204 nor the second circuit 205 is conducted, neither the first prompter 206 nor the second prompter 207 send out a prompt, and it can be determined that the air pressure in the balloon 202 is appropriate, and then the air pressure of the air bag 102 is appropriate.

In some embodiments, referring to fig. 6, the pressure-prompting device 200 includes a three-way tube 215 structure, an opening is provided on the housing 201, and a first interface of the three-way tube 215 extends from the opening of the housing 201 for an external device to inflate the balloon 202 and the airbag 102 from the first interface. The second interface and the third interface of the tee 215 are respectively connected with the inflation tube 103 and the balloon 202 correspondingly. When the first port is inflated, gas is introduced into the balloon 102 and the balloon 202, respectively.

The second port of tee 215 is detachably connected to inflation tube 103 so that the entire pressure indicating device 200 is detachable, disconnecting from endotracheal tube 100. Specifically, a plug 104 is disposed at the orifice of the gas tube 103, an internal thread is disposed in the plug 104, an external thread is disposed on the second interface of the three-way tube 215, and the plug 104 of the gas tube 103 is in threaded connection with the second interface of the three-way tube 215. The third interface of the tee 215 is also detachably connected to the balloon 202, and the balloon 202 may be damaged when used for a long time, so that the balloon 202 can be replaced conveniently due to the detachable connection.

Further, the balloon 202, the tee 215, the elastic structure 203, the first circuit 204, the second circuit 205 and other structures are integrated on the housing 201 to form a pressure indicating device 200, the pressure indicating device 200 is detachably connected with the inflation tube 103, and when the pressure indicating device 200 is needed to be used, the pressure indicating device 200 is connected with the inflation tube 103.

The working principle of the utility model is described in its entirety as follows:

referring to fig. 2 to 6, the position between the first connecting piece 208 and the second connecting piece 209 is shown by a broken line, and when the first connecting contact 211 and the second connecting contact 212 are in this position, neither the first connecting contact 211 nor the second connecting contact 212 is in communication with either the first circuit 204 or the second circuit 205.

When the tracheal cannula 100 of the present utility model is used, the switches on the first circuit 204 and the second circuit 205 are turned on, and at this time, the first contact 211 is connected to the first connection piece 208, and the first indicator 206 sends an indication (yellow light on) to indicate that the current air pressure in the balloon 202 is lower than the proper value, and the air pressures of the balloon 202 and the balloon 102 are approximately equal. Inflation of balloon 202 occurs, and balloon 102 communicates with balloon 202 via inflation tube 103, so that balloon 102 is inflated simultaneously during inflation of balloon 202.

In the process of inflating the balloon 202, the balloon 202 gradually bulges, when the height of the bulged balloon 202 is larger than that of the balloon cavity, the balloon 202 presses the elastic structure 203, so as to drive the first connecting contact 211 and the second connecting contact 212 to be positioned between the first connecting sheet 208 and the second connecting sheet 209, namely, the part between two broken lines in the figure, at the moment, the first connecting contact 211 is disconnected from the first connecting sheet 208, and meanwhile, the second connecting contact 212 is not connected with the second connecting sheet 209; in this step, neither the first circuit 204 nor the second circuit 205 is turned on, and neither the first indicator 206 nor the second indicator 207 is configured to indicate that the current air pressure of the balloon 202 is within the proper range.

If too much air is flushed into the balloon 202, the balloon 202 will further bulge and push the second connection contact 212 to connect with the second connection piece 209, so that the second circuit 205 is turned on, and the second indicator 207 sends an indication (red light on) to indicate that the air pressure of the balloon 202 is too high, so that the air bag 102 needs to be deflated. When the balloon 102 releases part of the gas, the air pressure of the balloon 202 is reduced, the extrusion of the elastic structure 203 is reduced, so that the elastic structure 203 moves back, and the first connection contact 211 and the second connection contact 212 are located between the first connection piece 208 and the second connection piece 209, which indicates that the current air pressure value of the balloon 202 is appropriate. If the first connection contact 211 is moved to connect with the first connection piece 208, the first circuit 204 is turned on, and the first indicator 206 indicates that the air bag 102 is deflated too much, so that the air pressure of the air bag 102 is lower than the proper value.

The above is a scheme of the tracheal cannula 100 device with pressure prompt, and the air pressure prompt of the air bag 102 is carried out on medical staff through the prompter. In order to ensure that the healthcare worker can know the specific value of the air pressure of the air bag 102 exactly, the following air bag 102 pressure detection scheme is proposed.

Referring to fig. 7 and 8, a pressure-sensing endotracheal intubation device, comprising: the trachea cannula 100 and the pressure measuring device 300, the trachea cannula 100 comprises a main cannula 101, an air bag 102 and an inflation tube 103, the air bag 102 is arranged at the tail end of the main cannula 101, and the inflation tube 103 is connected with the air bag 102 and used for inflating the air bag 102.

The pressure measuring device 300 comprises a pressure sensing piece 301 and a pressure detector 302, wherein the pressure sensing piece 301 is electrically connected with the pressure detector 302, and the pressure sensing piece 301 is attached to the main cannula 101 and is located between the main cannula 101 and the air bag 102. The pressure sensing sheet 301 is used for sensing the received pressure, the pressure detector 302 is a pressure detector 302 with a display, and the pressure of the air bag 102 is observed in real time through the pressure detector 302.

Specifically, the balloon 102 is usually disposed on the main cannula 101, and the tablet sensing piece 301 is disposed on the main cannula 101 at a position where the balloon 102 is disposed, so that the tablet sensing piece 301 is located between the main cannula 101 and the balloon 102, when the balloon 102 is inflated, the inflated balloon 102 will generate pressure on the tablet sensing piece 301, and the pressure detector 302 will detect the pressure received by the tablet sensing piece 301 and display a specific pressure value on the pressure sensor.

The pressure sensing piece 301 of the utility model directly receives the pressure of the air bag 102 and displays the pressure on the pressure adding detector, so that the pressure state of the air bag 102 can be measured more accurately, the pressure numerical value on the pressure adding detector is displayed, and the pressure condition of the air bag 102 can be displayed more intuitively to the user. The tracheal cannula 100 device for pressure detection has the advantages of more accurate detection and more visual display.

In addition, by the numerical value displayed on the pressure detector 302, the user can know more clearly how much pressure the pressure sensing piece 301 is currently subjected to, and the user can adjust the pressure in the air bag 102 according to the actual situation. Specifically, the air inlet and the air outlet are arranged on the air charging pipe 103, and when the air pressure value displayed by the pressure display is too large, the air bag 102 is properly deflated; when the air pressure value displayed by the pressure display is too small, the air bag 102 is inflated through the inflation tube 103.

In some embodiments, referring to fig. 7, the pressure-sensing endotracheal intubation device may also be provided with indicators to accommodate use of pressure measuring device 300. The single chip microcomputer 303, the third circuit 304, the fourth circuit 305 and the fifth circuit 306 are arranged, wherein the third circuit 304, the fourth circuit 305, the fifth circuit 306 and the pressure detector 302 are all connected to the single chip microcomputer 303, the third circuit 304 is provided with the third prompter 307, the fourth circuit 305 is provided with the fourth prompter 308, the fifth circuit 306 is provided with the fifth prompter 309, and the single chip microcomputer 303 triggers the third prompter 307, the fourth prompter 308 or the fifth prompter 309 according to the pressure value detected by the pressure detector 302. Wherein the third prompter 307 may be set to a yellow light, the fourth prompter 308 may be set to a red light, and the fifth prompter 309 may be set to a green light.

The program for controlling whether the third circuit 304, the fourth circuit 305 and the fifth circuit 306 are turned on is provided in the singlechip 303, and a proper range value of the pressure of the air bag 102 is preset, when the pressure value detected by the pressure detector 302 is smaller than the minimum value of the proper range value, the singlechip 303 lights up the yellow lamp, and at this time, it is indicated that the air pressure of the air bag 102 is lower than the proper range value, and the air inflation needs to be continued. When the pressure detector 302 detects that the side pressure value is greater than the maximum value of the appropriate range value, the singlechip 303 lights up a red light, which indicates that the air pressure of the air bag 102 is higher than the appropriate range value, and the air pressure of the air bag 102 is too high, so that the air pressure of the air bag 102 needs to be properly reduced. When the pressure value detected by the pressure detector 302 is within the appropriate range, the singlechip 303 lights up a green light, which indicates that the air pressure of the air bag 102 is appropriate. The color of the lamp used for prompting can be freely selected according to the needs of the user. In addition, the third prompter 307, the fourth prompter 308, and the fifth prompter 309 may be provided with a device for voice prompt, for example, a buzzer, and the prompt principle thereof may be unchanged.

In the tracheal intubation 100 device for pressure detection in this embodiment, the pressure of the air bag 102 is directly sensed by the pressure sensing sheet 301, and the pressure value sensed by the pressure sensing sheet 301 is displayed by the pressure detector 302, so that the tracheal intubation device has the advantages of more accurate detection and visual convenience. In addition, the third prompter 307, the fourth prompter 308 and the fifth prompter 309 can make the medical staff notice the air pressure prompt of the air bag 102 more easily, so that the medical staff can know the air pressure of the air bag 102 conveniently.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. A pressure-cued endotracheal intubation device, comprising: the trachea cannula comprises a main cannula, an air bag and an inflation tube, wherein the air bag is arranged at the tail end of the main cannula and is connected with the inflation tube, and the pressure prompting device inflates the air bag through the inflation tube;

the air bag is communicated with the balloon through the inflation tube, the air bag is inflated through the balloon, and the balloon with different degrees of inflation drives the elastic structure to be connected with the first circuit, or connected with the second circuit, or not connected with the first circuit and the second circuit; the elastic structure is connected with the first circuit, the first prompter sends out prompts, the second prompter sends out prompts under the condition that the elastic structure is connected with the second circuit, and the first prompter and the second prompter do not send out prompts under the condition that the elastic structure is not connected with the first circuit and the second circuit.

2. The pressure-cued tracheal intubation of claim 1, wherein the elastic structure comprises a deformation sheet, a first connecting contact and a second connecting contact, wherein the first connecting contact and the second connecting contact are both arranged on the deformation sheet and are positioned at one side far away from the balloon; the deformation sheet is fixedly arranged in the shell, the deformation sheet and the shell form a ball cavity, the ball bag is positioned in the ball cavity, and the deformation sheet is extruded through expansion of different degrees of the ball bag to deform, so that the first connecting contact is connected with the first circuit, the second connecting contact is connected with the second circuit, or the first connecting contact and the second connecting contact are not connected with any one of the first circuit and the second circuit.

3. The pressure-prompting tracheal intubation of claim 2, wherein the elastic structure comprises a pressing block, a spring, a first connection contact and a second connection contact, wherein the pressing block is movably arranged on the inner wall of the shell, the pressing block and the shell form a ball cavity, and the ball bag is positioned in the ball cavity; one end of the spring in a natural state is arranged at the bottom of the shell, the other end of the spring abuts against the pressing block, and the first connecting contact and the second connecting contact are both arranged on the pressing block; the pressing block is extruded to compress the spring through the expansion of the balloon with different degrees, so that the first connecting contact head is connected with the first circuit, or the first connecting contact head is connected with the second circuit, or neither the first connecting contact head nor the second connecting contact head is connected with any one of the first circuit and the second circuit.

4. A pressure-indicating endotracheal intubation device according to claim 2 or 3, wherein first and second connection tabs are provided in said housing, said first and second connection tabs being spaced apart; the first connecting sheet is connected with the first circuit, and the second connecting sheet is connected with the second circuit; the elastic structure is extruded through different expansion of the balloon, so that the first connecting contact is connected with the first connecting sheet, or the second connecting contact is connected with the second connecting sheet, or neither the first connecting contact nor the second connecting contact is connected with any one of the first connecting sheet and the second connecting sheet.

5. The pressure-indicating endotracheal intubation device of claim 1, wherein said first indicator is a first light-emitting device, said second indicator is a second light-emitting device, and the light-emitting states of said first light-emitting device and said second light-emitting device are different.

6. The pressure-cued endotracheal intubation device of claim 1, further comprising a tee, said tee being disposed on the housing, a first interface of said tee being for inflation, a second interface of said tee being detachably connected to said inflation tube, a third interface of said tee being detachably connected to said balloon.

7. The pressure-cued tracheal intubation of claim 6, wherein a plug is provided on the inflation tube, an internal thread is provided in the plug, an external thread is provided on the second port of the tee, and the plug is in threaded connection with the second port of the tee.