Air bag pressure adjusting device for artificial airway management

Abstract

The invention provides an air bag pressure adjusting device for artificial airway management, which comprises a control host, an air bag inflator pump and an air bag, a display screen and an operation button are arranged on the front side surface of the control host, a data transmission interface is arranged on one side of the control host, and a controller is arranged in the control host; according to the invention, the working principle is simple, the intelligent degree is high, the pressure of the air bag can be stably adjusted, and the situation that the pressure of the air bag is suddenly high and suddenly low along with the change of external conditions is effectively inhibited; the environment adaptability of the pressure of the artificial airway airbag is improved, and the artificial airway management efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of airbag pressure regulation, and in particular to an airbag pressure regulating device for artificial airway management. Background Art

[0002] An artificial airway is an effective connection established between the physiological airway and air or other gas sources to ensure airway patency, providing conditions for effective drainage, patency, mechanical ventilation, and treatment of lung diseases. The most common artificial airways are endotracheal intubation (oral or nasal) and tracheotomy. The scope of emergency artificial airways includes (1) identifying the cause of airway emergencies. (2) treating airway emergencies before establishing a definitive artificial airway. (3) using various auxiliary equipment and special techniques to establish, maintain, and monitor effective ventilation. Emergency artificial airway techniques can be roughly divided into deterministic and non-deterministic. The so-called deterministic means that it can ensure reliable and effective ventilation and is suitable for long-term use, while non-deterministic means the opposite. However, non-deterministic artificial airway techniques are often simple to operate and easy to be widely mastered.

[0003] An artificial airway is a breathing passage artificially created through certain means, primarily used to maintain airway patency and ensure normal breathing. It plays a vital role in the rescue and treatment of patients with acute and chronic respiratory failure and critical illness, maintaining airway patency, improving ventilation, and preventing aspiration, thereby effectively protecting patients' lives. Regularly monitor the cuff pressure and maintain it within the normal range to prevent excessive pressure on the airway mucosa. Suction should be performed regularly as needed to clear airway secretions and maintain airway patency.

[0004] The airbag pressure needs to be adjusted during artificial airway management. The current airbag pressure device has poor adjustment stability, which in turn affects the reliability of the artificial airway. Summary of the Invention

[0005] The present invention provides an airbag pressure regulating device for artificial airway management to solve the problem of poor reliability of airbag regulating devices in the prior art, realizes stable regulation of airbag pressure, effectively suppresses the fluctuation of airbag pressure with changes in external conditions, and improves the environmental adaptability of artificial airway airbag pressure.

[0006] The present invention provides an air bag pressure regulating device for artificial airway management, comprising a control host; a display screen and operation buttons are installed on the front side of the control host, and a data transmission interface is provided on one side of the control host; A controller is installed inside the control host; It also includes an airbag inflation pump and an airbag, wherein the data transmission interface is connected to the airbag inflation pump via a signal line; and the airbag inflation pump is connected to the airbag via an air tube.

[0007] Preferably, the present application provides an air bag pressure regulating device for artificial airway management, wherein an electromagnetic flow regulating valve is installed on the trachea, and the electromagnetic flow regulating valve is used to adjust the gas flow rate.

[0008] Preferably, the present application provides an airbag pressure regulating device for artificial airway management, wherein an air pressure sensor is installed in the airbag, and the air pressure sensor is used to collect the pressure in the airbag in real time and feed it back to the controller.

[0009] Preferably, the present application provides an airbag pressure regulating device for artificial airway management, wherein a microprocessor, a PWM drive module, a solenoid valve drive module, and a sensor signal acquisition module are installed in the controller, the microprocessor is connected to the airbag inflation pump through the PWM drive module, the airbag inflation pump is connected to the airbag, the microprocessor is connected to the electromagnetic flow regulating valve through the solenoid valve drive module, the input end of the sensor signal acquisition module is connected to the air pressure sensor, the output end of the sensor signal acquisition module is connected to the microprocessor, the PWM drive module is used to output a stable current, and the solenoid valve drive module is used to control the opening and closing of the electromagnetic flow regulating valve.

[0010] Preferably, the present application provides an airbag pressure regulating device for artificial airway management, wherein the PWM driving module includes a first Schmitt trigger, a second Schmitt trigger, an operational amplifier A and an operational amplifier B, the first Schmitt trigger input end inputs a PWM signal, and the output end is connected to the second Schmitt trigger input end, the second Schmitt trigger output end is connected to one end of resistor A, the other end of resistor A is respectively connected to one end of resistor B and one end of capacitor F, the other end of resistor B is respectively connected to one end of capacitor G and the positive input end of operational amplifier A, the other end of capacitor F is connected to the other end of capacitor G and grounded, and the operational amplifier A is connected to the first Schmitt trigger input end and the second Schmitt trigger input end, and the second Schmitt trigger output end is connected to one end of resistor A, and the other end of resistor A is respectively connected to one end of capacitor G and the positive input end of operational amplifier A, the other end of capacitor F is connected to the other end of capacitor G and grounded, and the operational amplifier A is connected to the first Schmitt trigger input end and the second Schmitt trigger input end, and the second Schmitt trigger output end is connected to one end of resistor A, and the second Schmitt trigger output end is connected to one end of resistor A, and the second Schmitt trigger output end is connected to one end of resistor B and one end of capacitor F, and the second end of resistor B is respectively connected to one end of capacitor G and the positive input end of operational amplifier A, the other end of capacitor F is connected to the other end of capacitor G and grounded, and the operational amplifier A is connected to the first Schmitt trigger input end and the second Schmitt trigger input end. The negative input end of amplifier A is connected to the output end, the output end of operational amplifier A is connected to one end of resistor C, the other end of resistor C is respectively connected to the positive input end of operational amplifier B and one end of resistor G, the output end of operational amplifier B is connected to one end of resistor F, the other end of resistor F is connected to the base of the transistor, the negative input end of operational amplifier B is respectively connected to one end of resistor D and one end of resistor E, the other end of resistor D is grounded, the other end of resistor E is respectively connected to the emitter of the transistor and one end of resistor H, the other end of resistor H is connected to the cathode of the first diode, the anode of the first diode is grounded, and a second diode is connected between the collector of the transistor and the other end of resistor G.

[0011] Preferably, the present application provides an air bag pressure regulating device for artificial airway management, which further includes an air release solenoid valve, wherein the air release solenoid valve is installed on the trachea and connected to the microprocessor.

[0012] Preferably, a method for using an airbag pressure regulating device for artificial airway management comprises the following steps: A. First, place the airbag in the artificial airway and connect the airbag to the airbag inflation pump, which is then connected to the control host. B. Then, the control host is started, and the microprocessor in the controller controls the PWM drive module to work, and the PWM drive module drives the airbag inflation pump to work, and the airbag inflation pump inflates the airbag; C. The air pressure sensor feeds back the air pressure signal in the airbag to the microprocessor in real time; D. The microprocessor sends driving instructions to the PWM driving module according to the changes in air pressure. The PWM driving module outputs a stable current to ensure that the air pressure in the airbag changes evenly, thereby improving the reliability, safety and stability of the artificial airway bag. Beneficial effects

[0013] The present invention has a simple working principle and a high degree of intelligence. It can stably adjust the airbag pressure, effectively suppressing the fluctuation of the airbag pressure with changes in external conditions, improving the environmental adaptability of the artificial airway airbag pressure, and thus improving the efficiency of artificial airway management.

[0014] The PWM drive module used in the present invention can achieve accurate output of 4-20MA current, and the resolution is related to the number of bits of the PWM signal. As long as the PWM signal resolution reaches a certain number of bits, high-precision current output can be achieved. Due to the use of Schmitt trigger and current negative feedback circuit, its anti-interference ability and stability are relatively high, thereby improving the stability of airbag inflation and deflation. The above description is only an overview of the technical solutions of the embodiments of the present invention. In order to more clearly understand the technical means of the embodiments of the present invention, they can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiments of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a control principle block diagram of the present invention; Figure 3 This is the circuit diagram of the PWM drive module of the present invention; Figure 4 It is a flowchart of the present invention; Explanation of the accompanying symbols: control host 1, display screen 2, operation button 3, first Schmitt trigger 4, second Schmitt trigger 5, transistor 6, first diode 7, second diode 8, data transmission interface 9, airbag inflation pump 10, airbag 11, signal line 12, air pipe 13, electromagnetic flow regulating valve 14, air pressure sensor 15, microprocessor 16, PWM drive module 17, solenoid valve drive module 18, sensor signal acquisition module 19, deflation solenoid valve 20. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains; the terms used in the specification of the application herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification, claims and accompanying drawings of the present invention are intended to cover non-exclusive inclusions.

[0019] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] The directional words appearing in the following description are all directions shown in the drawings and are not intended to limit the specific structure of the present invention. For example, in the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0021] In addition, the expressions indicating directions such as the X direction, Y direction, and Z direction used to illustrate the operation and construction of the various components of this embodiment are not absolute but relative, and although these indications are appropriate when the various components are in the positions shown in the figures, when these positions are changed, these directions should be interpreted differently to correspond to the changes.

[0022] In addition, the terms "first", "second", etc. in the description and claims of the present invention or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more such features.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt, or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap connection or a snap connection; the physical connection may also be an integral connection, such as a connection formed by welding, bonding, or integral molding. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Example

[0025] See also Figure 1-Figure 4 The present invention discloses an airbag pressure regulating device for artificial airway management, comprising a control host 1; a display screen 2 and an operation button 3 are installed on the front side of the control host 1, and a data transmission interface 9 is provided on one side of the control host 1; A controller is installed inside the control host 1; It also includes an airbag inflation pump 10 and an airbag 11. The data transmission interface 9 is connected to the airbag inflation pump 10 through a signal line 12; the airbag inflation pump 10 is connected to the airbag 11 through an air pipe 13; an electromagnetic flow regulating valve 14 is installed on the air pipe 13, and the electromagnetic flow regulating valve 14 is used to adjust the gas flow rate; an air pressure sensor 15 is installed in the airbag 11, and the air pressure sensor 15 is used to collect the pressure in the airbag in real time and feed it back to the controller.

[0026] In the present invention, the controller is equipped with a microprocessor 16, a PWM drive module 17, a solenoid valve drive module 18, and a sensor signal acquisition module 19. The microprocessor 16 is connected to the airbag inflator 10 via the PWM drive module 17, and the airbag inflator 10 is connected to the airbag 11. The microprocessor 16 is connected to the electromagnetic flow control valve 14 via the solenoid valve drive module 18. The input end of the sensor signal acquisition module 19 is connected to the air pressure sensor 15, and the output end of the sensor signal acquisition module 19 is connected to the microprocessor 16. The PWM drive module 17 is used to output a stable current, and the solenoid valve drive module 18 is used to control the opening and closing of the electromagnetic flow control valve. The controller also includes a deflation solenoid valve 20, which is installed on the air pipe 13 and connected to the microprocessor 16. Example

[0027] The present invention discloses an airbag pressure regulating device for artificial airway management, characterized in that it comprises a control host 1; a display screen 2 and an operation button 3 are installed on the front side of the control host 1, and a data transmission interface 9 is provided on one side of the control host 1; A controller is installed inside the control host 1; It also includes an airbag inflation pump 10 and an airbag 11. The data transmission interface 9 is connected to the airbag inflation pump 10 through a signal line 12; the airbag inflation pump 10 is connected to the airbag 11 through an air pipe 13; an electromagnetic flow regulating valve 14 is installed on the air pipe 13, and the electromagnetic flow regulating valve 14 is used to adjust the gas flow rate; an air pressure sensor 15 is installed in the airbag 11, and the air pressure sensor 15 is used to collect the pressure in the airbag in real time and feed it back to the controller.

[0028] In the present invention, the controller is equipped with a microprocessor 16, a PWM drive module 17, a solenoid valve drive module 18, and a sensor signal acquisition module 19. The microprocessor 16 is connected to the airbag inflator 10 via the PWM drive module 17, and the airbag inflator 10 is connected to the airbag 11. The microprocessor 16 is connected to the electromagnetic flow control valve 14 via the solenoid valve drive module 18. The input end of the sensor signal acquisition module 19 is connected to the air pressure sensor 15, and the output end of the sensor signal acquisition module 19 is connected to the microprocessor 16. The PWM drive module 17 is used to output a stable current, and the solenoid valve drive module 18 is used to control the opening and closing of the electromagnetic flow control valve. The controller also includes a deflation solenoid valve 20, which is installed on the air pipe 13 and connected to the microprocessor 16.

[0029] In this embodiment, the PWM driving module includes a first Schmitt trigger 4, a second Schmitt trigger 5, an operational amplifier A1d, and an operational amplifier B2d. The input end of the first Schmitt trigger 4 inputs a PWM signal, and the output end is connected to the input end of the second Schmitt trigger 5. The output end of the second Schmitt trigger 5 is connected to one end of the resistor A1c, and the other end of the resistor A1c is respectively connected to one end of the resistor B2c and one end of the capacitor F6b. The other end of the resistor B2c is respectively connected to one end of the capacitor G7b and the positive input end of the operational amplifier A1d. The other end of the capacitor F6b is connected to the other end of the capacitor G7b and grounded. The negative input end of the operational amplifier A1d is connected to the output end. The output of amplifier A1d is connected to one end of resistor C3c. The other end of resistor C3c is connected to the positive input of operational amplifier B2d and one end of resistor G7c. The output of operational amplifier B2d is connected to one end of resistor F6c. The other end of resistor F6c is connected to the base of transistor 6. The negative input of operational amplifier B2d is connected to one end of resistor D4c and one end of resistor E5c. The other end of resistor D4c is grounded. The other end of resistor E5c is connected to the emitter of transistor 6 and one end of resistor H8c. The other end of resistor H8c is connected to the cathode of first diode 7. The anode of first diode 7 is grounded. A second diode 8 is connected between the collector of transistor 6 and the other end of resistor G7c. The PWM drive module employed in the present invention can achieve precise current output of 4-20mA, and its resolution is related to the number of bits of the PWM signal. As long as the PWM signal resolution reaches a certain number of bits, high-precision current output can be achieved. Due to the use of a Schmitt trigger and current negative feedback circuit, it has high anti-interference ability and stability, thereby improving the stability of airbag inflation and deflation.

[0030] Working Principle: A method for using an airbag pressure regulating device for artificial airway management comprises the following steps: A. First, place the airbag in the artificial airway and connect the airbag to the airbag inflation pump, which is then connected to the control host. B. Then, the control host is started, and the microprocessor in the controller controls the PWM drive module to work, and the PWM drive module drives the airbag inflation pump to work, and the airbag inflation pump inflates the airbag; C. The air pressure sensor feeds back the air pressure signal in the airbag to the microprocessor in real time; D. The microprocessor sends driving instructions to the PWM driving module according to the changes in air pressure. The PWM driving module outputs a stable current to ensure that the air pressure in the airbag changes evenly, thereby improving the reliability, safety and stability of the artificial airway bag.

[0031] In summary, the present invention has a simple working principle and a high degree of intelligence. It can stably adjust the airbag pressure, effectively suppressing the fluctuation of the airbag pressure with changes in external conditions, improving the environmental adaptability of the artificial airway airbag pressure, and thus improving the efficiency of artificial airway management.

[0032] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An airbag pressure regulating device for artificial airway management, characterized in that: It comprises a control host (1); a display screen (2) and an operation button (3) are installed on the front side of the control host (1); and a data transmission interface (9) is provided on one side of the control host (1); The control host (1) has a controller installed inside; It also includes an airbag inflation pump (10) and an airbag (11), wherein the data transmission interface (9) is connected to the airbag inflation pump (10) via a signal line (12); and the airbag inflation pump (10) is connected to the airbag (11) via an air tube (13).

2. The airbag pressure regulating device for artificial airway management according to claim 1, characterized in that: An electromagnetic flow regulating valve (14) is installed on the gas pipe (13), and the electromagnetic flow regulating valve (14) is used to adjust the gas flow rate.

3. The airbag pressure regulating device for artificial airway management according to claim 1, characterized in that: An air pressure sensor (15) is installed in the airbag (11), and the air pressure sensor (15) is used to collect the pressure in the airbag in real time and feed it back to the controller.

4. The airbag pressure regulating device for artificial airway management according to claim 1, characterized in that: The controller is equipped with a microprocessor (16), a PWM drive module (17), a solenoid valve drive module (18), and a sensor signal acquisition module (19). The microprocessor (16) is connected to the airbag inflation pump (10) through the PWM drive module (17), and the airbag inflation pump (10) is connected to the airbag (11). The microprocessor (16) is connected to the electromagnetic flow control valve (14) through the solenoid valve drive module (18). The input end of the sensor signal acquisition module (19) is connected to the air pressure sensor (15), and the output end of the sensor signal acquisition module (19) is connected to the microprocessor (16). The PWM drive module (17) is used to output a stable current, and the solenoid valve drive module (18) is used to control the opening and closing of the electromagnetic flow control valve.

5. The airbag pressure regulating device for artificial airway management according to claim 4, characterized in that: The PWM drive module includes a first Schmitt trigger (4), a second Schmitt trigger (5), an operational amplifier A (1d) and an operational amplifier B (2d), wherein the first Schmitt trigger (4) inputs a PWM signal to an input end, and the output end is connected to the input end of the second Schmitt trigger (5), the output end of the second Schmitt trigger (5) is connected to one end of a resistor A (1c), the other end of the resistor A (1c) is respectively connected to one end of a resistor B (2c) and one end of a capacitor F (6b), the other end of the resistor B (2c) is respectively connected to one end of a capacitor G (7b) and the positive input end of the operational amplifier A (1d), the other end of the capacitor F (6b) is connected to the other end of the capacitor G (7b) and is grounded, the negative input end of the operational amplifier A (1d) is connected to the output end, and the operational amplifier A (1d) is connected to the negative input end. ) output end is connected to one end of resistor C (3c), the other end of resistor C (3c) is respectively connected to the positive input end of operational amplifier B (2d) and one end of resistor G (7c), the output end of operational amplifier B (2d) is connected to one end of resistor F (6c), the other end of resistor F (6c) is connected to the base of transistor (6), the negative input end of operational amplifier B (2d) is respectively connected to one end of resistor D (4c) and one end of resistor E (5c), the other end of resistor D (4c) is grounded, the other end of resistor E (5c) is respectively connected to the emitter of transistor (6) and one end of resistor H (8c), the other end of resistor H (8c) is connected to the negative electrode of the first diode (7), the positive electrode of the first diode (7) is grounded, and a second diode (8) is connected between the collector of the transistor (6) and the other end of resistor G (7c).

6. The airbag pressure regulating device for artificial airway management according to claim 1, characterized in that: It also includes a deflation solenoid valve (20), which is installed on the air pipe (13) and connected to the microprocessor (16).

7. A method for using the airbag pressure regulating device for artificial airway management according to claim 1, characterized in that: The method of use includes the following steps: A. First, place the airbag in the artificial airway and connect the airbag to the airbag inflation pump, which is then connected to the control host. B. Then, the control host is started, and the microprocessor in the controller controls the PWM drive module to work, and the PWM drive module drives the airbag inflation pump to work, and the airbag inflation pump inflates the airbag; C. The air pressure sensor feeds back the air pressure signal in the airbag to the microprocessor in real time; D. The microprocessor sends driving instructions to the PWM driving module according to the changes in air pressure. The PWM driving module outputs a stable current to ensure that the air pressure in the airbag changes evenly, thereby improving the reliability, safety and stability of the artificial airway bag.

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