KR0144067B1 - Patient flow persistence mechanical ventilation - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous flow rate mechanical ventilation device for a patient, and in particular, to reduce respiratory muscle fatigue of a patient by reducing the work of breathing of a patient with respiratory failure, an oxygen mixer (10) ), A flow meter connected to the first and second gas supply pipes 11 and 12 and the first gas supply pipe 11 respectively connected to the oxygen mixer 10 to measure the discharge flow rate of oxygen and to adjust the discharge flow rate. (13), in order to atomize the oxygen passed through the flow meter 13 and to increase the humidity, and to pass the squeezer 14 and the plunger 14 provided in the flow meter 13 of the first gas supply pipe 11. In order to control the flow direction of oxygen, it is connected to the spray valve 16 installed in the first gas supply pipe 11 and the second gas supply pipe 12 to the atomizer 16 and the atomizer 16 for spraying and pumping oxygen. To measure the discharge flow rate of oxygen and adjust the discharge flow rate To control the flow direction of oxygen passing through the flow meter 16a, the reservoir 17 having an elasticity to store oxygen pumped from the sprayer 16, the sprayer 16, and the reservoir 17 Oxygen mixer, which is connected to and installed in the intake pipe 19 and the intake pipe 19 for connecting and connecting the check valve 18 and the first and second gas supply pipes 11 and 12 provided in the second gas supply pipe 12. The pressure gauge 21 and the reservoir 20 which are installed in the reservoir 20 and the intake pipe 19 after the reservoir 20 to measure the oxygen pressure in the intake pipe 19. And a pipe valve 22 connected to the intake pipe 19 between the pressure gauge 21 and discharging the waste gas which has circulated in the lung.

Description

Patient flow persistence mechanical ventilation

[Technical Field]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a patient flow sustained mechanical ventilation apparatus, and more particularly to a patient flow sustained mechanical ventilation apparatus to reduce the respiratory muscle fatigue of the patient by reducing the work of breathing of the respiratory divert. .

[Background]

In general, various mechanical ventilation devices have emerged as a mechanical ventilation method for patients with respiratory failure, and continuous positive airway pressure for spontaneous breathing by the patient while maintaining positive pressure in the airways of Chinese characters The CPAP (CPAP) method has emerged.

This continuous airway positive pressure method is used to increase the amount of gas remaining in the patient's lungs to increase oxygenation, or to remove the mechanical ventilation device from patients undergoing mechanical ventilation, especially in the intensive care patients.

Most mechanical ventilators on the market use demand flow systems, which are continuous airway positive pressures. The demand flow system is a system in which intake air is constantly supplied according to a flow rate required by a patient, and the most typical mechanical ventilation device using the demand flow system is shown in FIG.

1 shows a configuration diagram of a conventional mechanical ventilation device. The mechanical ventilation device is installed in the inlet pipe 50 into which the air is introduced and the demand check valve 33 and the inlet pipe 50 which are installed at the inlet pipe 50 to control the inflow of the air and are integrally orthogonal to each other. To the supply pipe 36 to supply oxygen gas, to the inlet pipe 50 orthogonal to the supply pipe 36 orthogonally, and to the inlet supply intermittent check valve 35 and the supply pipe 36 Humidifier (37) formed in communication with the inlet, the inlet pipe 38 and the inlet pipe 38 for supplying gas into the airway of the patient is formed in the Y-shape connected to the outlet side of the swittle 37, one side of the intake pipe 38 The negative pressure passage (40) connected between the exhaust valve (39) provided at the upper side of the valve, the supply pipe (36) located above the belt tilter check valve (35), and the intake pipe (38), and the negative pressure passage (40). And a pressure sensing device 52 including the check valve 51 and the check valve 51.

In the conventional mechanical ventilation device, the cycle pressure of the demand valve system and the ventilation device is sensed by the pressure sensing device 52, the sound pressure is sensed through the negative pressure passage 40 during the initial intake of the patient, and the intake of the patient is performed. When the demand check valve 35 is opened by the negative pressure generated at the time, the gas necessary for intake is finally supplied into the patient's lungs.

(A) of FIG. 1 is a view showing the gas flow state during positive airway pressure of the patient. In this case, in order to supply the intake air to the patient for the first time, the demand valve 33 of the inlet pipe 50 is closed and the ventilator check valve 35 of the supply pipe 36 is opened. In the state in which the exhaust valve 39 of the intake pipe 38 is closed, when oxygen gas flows in through the supply pipe 36, the gas is atomized into water particles while passing through the squeezer 37, and then the intake pipe 38. Through the inflow into the patient's airway, the inspiratory activity for the positive airway pressure of the patient begins.

(B) of FIG. 1 shows the gas flow state when the patient inhales by magnetic force. That is, when a negative pressure is generated in response to the suction demand of the patient, the ventilator check valve 35 of the supply pipe 36 is closed and the demand check valve 33 of the inlet pipe 50 is opened by the negative pressure of the patient. A small amount of external air is sucked into the patient's airway through the tube 50, the supply tube 36, the hygroscopic 37, and the intake tract 38.

(C) of FIG. 1 shows the gas flow state when the patient inhales and exhausts by magnetic force. That is, in this case, the external air is sucked into the patient's airway through the inlet pipe 50, the supply pipe 36, the hygroscopic 37, the intake pipe 38, and at the same time, the air that has finished circulation in the lung is It is exhausted to the outside through the 51 and the exhaust valve 39, and this process is repeated continuously.

However, the conventional mechanical ventilation device has a problem that a time delay occurs until gas is introduced into the airway of the patient at the initial point of breathing. This problem is due to the fact that the maximum amount of suction demand occurs in the suction cycle.

In other words, the continuous airway positive pressure method of the conventional mechanical ventilation system opens the demand valve by the negative pressure of the patient generated during inspiration, and after that, the gas necessary for the intake air is supplied into the lung. In order to open the demand valve, a significant amount of airway pressure reduction is required for the patient. Therefore, the gas supply is insufficient at the beginning of inspiration, which increases the respiratory fatigue of the patient, causing respiratory fatigue, and magnetic respiration. This may result in the removal of the mechanical ventilation system.

An object of the present invention is to provide a flow rate continuous mechanical ventilation device of the patient to minimize the respiratory work of the patient and at the same time to remove the fatigue inducing factor of the respiratory muscles to keep the breathing of the patient smoothly.

1 is a configuration diagram of a conventional mechanical ventilation device,

(A) Figure of gas flow state at the time of positive airway pressure of patient,

(B) is a state of gas flow at the time of inspiration by the magnetic force of the patient,

(C) is a gas flow state diagram at the time of intake and exhaust by the magnetic force of the patient,

2 is a block diagram of a flow rate continuous mechanical ventilation apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

10: oxygen mixer 11, 12: first, second gas supply pipe

13,16a: flow meter 14: raid

15,18: check valve 16: sprayer

17,20: reservoir 19: intake pipe

21: pressure gauge 22: pipe valve

An object of the present invention described above is an oxygen mixer having an inlet pipe into which oxygen and air are introduced, and oxygen connected to first and second oxygen mixed gas supply pipes connected to upper and lower portions of the oxygen mixer, and to a first oxygen mixed gas supply pipe, respectively. A humidifier for increasing humidity in the mixed gas, a nebulizer connected to the second oxygen mixed gas supply pipe and spray-strained oxygen mixed gas, and installed in the first and second oxygen mixed gas supply pipes to flow the oxygen mixed gas. The valve for controlling the air, an intake pipe through which the oxygen mixture gas passed through the humidifier and the atomizer joins, a reservoir for temporarily storing the oxygen mixture gas passed through the humidifier and the atomizer, and a pipe installed in the intake pipe to exhaust waste gas. And a pressure gauge installed in the intake pipe to adjust the intake pressure, and during intake, the check valve is opened by the oxygen mixed gas supply pressure. And, when the waste gas exhaust that is by the exhaust pressure to close the check valve is achieved by a flow persistence mechanical ventilation of a patient, characterized in that for blocking the intake of oxygen mixed gas to the intake pipe.

Hereinafter, with reference to the accompanying drawings a specific embodiment of the patient-continuous flow rate mechanical ventilation apparatus according to the present invention will be described in detail.

2 is a block diagram of a patient-continuous flow rate mechanical ventilation apparatus according to the present invention. As shown, the flow rate continuous mechanical ventilation device of the present invention is the oxygen mixer 10, the first and second oxygen mixed gas supply pipe (11, 12), the humector 14, the nebulizer 16, the check valve (15) And 18, an intake pipe 19, reservoirs 17 and 20, a pipe valve 22, and a pressure gauge 21.

Oxygen mixer 10 is provided with an inlet pipe (10'.10 ") through which oxygen (O2) and air are introduced, and serves to mix the introduced oxygen and air with an oxygen mixed gas, and the oxygen mixer 10 First and second oxygen mixed gas supply pipes 11 and 12 are connected to upper and lower portions of the upper and lower portions, respectively.

The first oxygen mixed gas supply pipe 11 is connected to a flow meter 13 capable of measuring the flow rate of the oxygen mixed gas and controlling the flow rate thereof, and downstream of the flow meter 13 of the first oxygen mixed gas supply pipe 11. The hydrant 14 is further connected to atomize the oxygen-mixed gas that has passed through the flowmeter 13 and increase the humidity. In addition, the flow direction of the oxygen mixed gas that has passed through the damper 14 is controlled by a check valve 15 installed in the first oxygen mixed gas supply pipe 11.

The second oxygen mixed gas supply pipe 12 is provided with an atomizer 16 for spraying and pumping the oxygen mixed gas, and a flow meter 16a is connected downstream of the atomizer 16 of the second oxygen mixed gas supply pipe 12. The flow rate of the oxygen mixed gas to be sprayed is measured and the flow rate can be adjusted. Downstream of the flow meter 16a of the second oxygen mixed gas supply pipe 12, a reservoir 17, an atomizer 16, and a reservoir having an elasticity capable of designating an oxygen mixed gas pumped from the atomizer 16; The check valve 18 which controls the flow direction of the oxygen mixed gas which passed through 17) is provided in order.

The first and second oxygen mixed gas supply pipes 11 and 12 are connected to one by an intake pipe 19, and the intake pipe 19 has a reservoir 20 having elasticity to temporarily store the oxygen mixed gas. Is provided, and a pressure gauge 21 for measuring the oxygen mixed gas pressure in the intake pipe 19 is provided in the intake pipe 19 downstream of the reservoir 20.

A pipe valve 22 is installed in the intake pipe 19 between the reservoir 20 and the pressure gauge 21 to exhaust the waste gas circulated through the lungs of the patient to the outside.

According to the flow rate continuous mechanical ventilation device according to the present invention having the above-described configuration, when the patient inhales, a part of the oxygen mixed gas in which oxygen and air are mixed is transferred from the oxygen mixer 10 to the first oxygen mixed gas supply pipe 11. When the water flows into the squeeze 14 through the flow meter 13, the oxygen mixture gas is held at a constant rate by the action of the squeeze 14 to open the check valve 15 by the pressure. Flows into the engine (19).

In addition, the oxygen mixed gas of the remaining portion of the oxygen mixer 10 is introduced into the sprayer 16 through the second oxygen mixed gas supply pipe 12, and is sprayed at a constant pressure in the atomized state to store the reservoir 17. While flowing in, the check valve 18 is opened at the pressure and flows into the intake pipe 19, where it merges with the oxygen mixed gas introduced through the first oxygen mixed gas supply pipe 11.

Part of the oxygen mixed gas introduced into the intake pipe 19 is again introduced into the reservoir 20, and part of the oxygen mixed gas is introduced into the airway of the patient through the intake pipe 19 in a positive airway pressure state.

When the patient exhausts the waste gas, the check valves 15 and 18 are closed by the exhaust pressure, and the waste gas is exhausted to the outside through the pipe valve 22.

On the other hand, by injecting a separate drug into the nebulizer 16 by administering a drug gas to the patient with the oxygen mixture gas, while maintaining the respiratory activity of the patient smoothly and can improve the respiratory recovery function by the magnetic force.

In addition, the flow meters 13 and 16a measure the flow rate of the oxygen mixed gas passing through the first and second oxygen mixed gas supply pipes 11 and 12 so that the oxygen mixed gas supply amount can be appropriately adjusted according to the condition of the patient.

According to the flow-continuous mechanical ventilation device of the patient described above, the patient can continuously supply more oxygen mixed gas to the patient during spontaneous breathing while maintaining the positive airway pressure, so that the patient is not increased. It is possible to maintain a stable breathing state, especially when the patient inhaled by opening the shock valve by the supply flow pressure rather than negative pressure to minimize the fatigue phenomenon of the respiratory muscles.

Claims (3)

An oxygen mixer having an inlet pipe into which oxygen and air are introduced, a first and second oxygen mixed gas supply pipes connected to upper and lower portions of the oxygen mixer, and a first oxygen mixed gas supply pipe to increase humidity in the oxygen mixed gas; Moisture, the atomizer is connected to the second oxygen mixed gas supply pipe for spraying the oxygen mixed gas, the check valve installed in the first and second oxygen mixed gas supply pipe to control the flow direction of the oxygen mixed gas, the hygroscopic and the nebulizer An intake pipe through which the oxygen mixed gas passed through, a reservoir for temporarily storing the oxygen mixed gas passed through the air humidifier and the atomizer, a pipe valve installed in the intake pipe to exhaust waste gas, and an intake pressure installed in the intake pipe And a pressure gauge for adjusting the pressure, and the inlet valve is opened by the oxygen mixed gas supply pressure during intake, and the exhaust pressure is exhausted when the waste gas is exhausted. And closing the shock valve to block intake of oxygen mixed gas to the intake pipe. According to claim 1, wherein the reservoir is a continuous flow rate mechanical ventilation apparatus of the patient, characterized in that installed in the intake pipe and downstream of the atomizer of the second oxygen mixed gas supply pipe, The patient continuous flow machine of claim 1 or 2, wherein a flow meter is provided in each of the plunger and the nebulizer to measure the flow rate and to control the flow rate.