CN111097088A - Atomizer for patient with chronic lung obstructive pulmonary disease - Google Patents

Abstract

The invention discloses an atomizer for patients with chronic pulmonary obstructive pulmonary disease, which comprises an atomizer body, an air inlet pipeline connected with the atomizer body and used for providing a high-flow oxygen source, an air outlet pipeline connected with the atomizer body and a mask, and a medicine pumping pipeline provided with a valve port for controlling medicine to enter the atomizer body, wherein the medicine pumping pipeline is connected with an air pumping pipeline and used for pumping the medicine into the medicine pumping pipeline. The automatic medicine pumping atomizer can automatically inject medicine into the atomizer, and an injector is avoided; a one-way valve is arranged between the atomizer and the mask, so that the gas exhaled by the patient can be prevented from entering the atomizer; the position of the atomizer can be adjusted to avoid its tipping. Has high clinical application value.

Description

Atomizer for patient with chronic lung obstructive pulmonary disease

Technical Field

The invention relates to medical equipment, in particular to an atomizer and an atomizing mask for automatically drawing medicine for patients with chronic lung obstructive pulmonary diseases.

Background

For some patients with respiratory conditions such as chronic pulmonary obstruction, it is desirable to use an aerosolization mask to deliver aerosolized medicament thereto. In the existing mode, a mode that an injector is injected into an atomizer is adopted, so that medical staff is easy to mistakenly regard the injector with atomized medicine as other medicine, and the medicine is injected into a patient.

In order to atomize the liquid medicine in the atomizer, an air compression type atomizer, also called jet atomization, is generally adopted, and the atomization is realized by utilizing compressed air to form high-speed airflow through a fine nozzle according to a Venturi (Venturi) injection principle, the generated negative pressure drives liquid or other fluid to be sprayed onto a barrier together, and the liquid drops splash to the periphery under high-speed impact to change into atomized particles to be sprayed out from an air outlet pipe.

Additionally, during use of the mask, if driven with high flow rates of oxygen, there is a carbon dioxide reservoir wind. However, if only high-pressure air is used, oxygen deficiency can be caused, and the common departments are not equipped with high-pressure air.

Disclosure of Invention

In order to solve the technical problem, the invention discloses a urine cup, and the technical scheme of the invention is implemented as follows:

an atomizer for patients with chronic pulmonary obstructive pulmonary disease comprises an atomizer body, an air inlet pipeline connected with the atomizer body and providing a high-flow oxygen source, an air outlet pipeline connected with the atomizer body and a mask, and a medicine pumping pipeline connected with a medicine storage tank and the upper end of the atomizer body; a valve port for controlling the medicine to enter the atomizer body is arranged in the medicine pumping pipeline; the medicine pumping pipeline is connected with an air pumping pipeline, and the air pumping pipeline is used for pumping medicine into the medicine pumping pipeline.

Preferably, an air flow sensor or an air pressure sensor is arranged in the air outlet pipeline.

Preferably, the valve port is a one-way valve proximate the atomizer body.

Preferably, the valve port is a two-way valve and is arranged at the joint of the medicine pumping pipeline and the air pumping pipeline, and the two-way valve is connected with a motor; the motor is linked with an air extractor for controlling the air extraction pipeline.

The invention also discloses an atomization mask which comprises a mask body, an elastic band for fixing the mask body on a patient face and a vent hole arranged on the mask body.

Preferably, a sliding sheet is arranged on the mask body, and a sliding area of the sliding sheet covers the vent hole.

Preferably, the edge of the mask body is wrapped with a rubber layer.

Preferably, the mask body is provided with a metal sheet capable of being shaped, the metal sheet is positioned on the mask body, and when the patient wears the mask, the position of the metal sheet corresponds to the bridge of the nose.

Preferably, the mask body is provided with a groove for limiting the sliding of the sliding sheet, and the vent is located on the groove.

Preferably, a one-way valve is provided between the nebulizer and the face mask.

Preferably, a sensor for sensing the exhalation of the patient is arranged in the mask, the sensor is connected with a control center, and the control center is further in signal connection with a device for providing a high-flow oxygen source and an air exhaust device for controlling the air exhaust pipeline.

Preferably, the sensor is an air pressure sensor or an air flow sensor.

Preferably, the outlet conduit is connected to the mask by a flexible hose.

The beneficial effects of the implementation of the invention are as follows:

1. the automatic injection of the medicine into the atomizer can be realized, and the use of an injector is avoided;

2. a one-way valve is arranged between the atomizer and the mask, so that the gas exhaled by the patient can be prevented from entering the atomizer;

3. the position of the atomizer can be adjusted through the bendable hose, so that the atomizer is prevented from toppling;

4. a slide tab on the vent may be used to adjust the size of the vent and thus the air entering the mask.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of an embodiment of an aerosolizing mask;

FIG. 2 is a schematic diagram of an embodiment of an aerosolizing mask;

FIG. 3 is a schematic diagram of an embodiment of an aerosolizing mask;

FIG. 4 is a schematic diagram of an embodiment of an aerosolizing mask;

FIG. 5 is a schematic cross-sectional view of a barrier flap in a one-way valve closing a passageway;

FIG. 6 is a schematic cross-sectional view of the barrier flap in the check valve being pushed open by the flow of oxygen;

FIG. 7 is a schematic cross-sectional view of the blocking sheet closing the outlet of the drug withdrawal conduit when the check valve is used in the drug withdrawal conduit;

FIG. 8 is a schematic cross-sectional view of the medication industry through the check valve when the check valve is used in the medication withdrawal conduit;

FIG. 9 is a schematic cross-sectional view of the two-way valve being used in the drug evacuation conduit to evacuate the drug solution by evacuating the evacuation conduit;

FIG. 10 is a schematic cross-sectional view of the two-way valve when the two-way valve is used in the drug evacuation tube, wherein the drug solution in the drug evacuation tube passes through the two-way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, the terms "upper", "lower", "left", "right", and the like are used herein for convenience in describing the relative positional relationship between the components of the present invention, and do not refer to an absolute orientation during actual use.

Description of the structure of the atomizer:

the atomizer 3 of the invention is based on an air compression type atomizer, and the atomization principle is that compressed air forms high-speed airflow through a tiny pipe orifice, the generated negative pressure drives liquid or other fluid to be sprayed onto an obstacle together, and the liquid drops splash to the periphery under high-speed impact to change into fog-shaped particles to be sprayed out from an air outlet pipe. It is noted that in a preferred embodiment, the present invention uses a high flow of oxygen as the driving force to atomize the drug solution in the nebulizer 3 into the mask. This is because the common department is not equipped with a high pressure air source, and most of them are oxygen cylinders, so that the utility of using oxygen flow is higher. On the other hand, for most respiratory disease patients, such as chronic obstructive pulmonary disease patients, the proportion of oxygen in the compressed air is easy to cause oxygen deficiency, thereby endangering the life safety of the patients.

The existing atomizers adopt an injection needle to extract medicine so as to drive the medicine into the atomizers, but medical accidents are easily caused. For example, due to the lack of identification, medical personnel may inadvertently drive the medication from the needle into the patient, thereby compromising patient safety. In order to overcome the problem, the invention discloses an atomizer capable of automatically feeding medicine, which is shown in figures 1-4: the device comprises an atomizer body 3, an air inlet pipeline 31 which is connected with the atomizer body 3 and provides a high-flow oxygen source, an air outlet pipeline 32 which is connected with the atomizer body 3 and a mask, and a medicine pumping pipeline 331, wherein the medicine pumping pipeline 331 is connected with a medicine storage tank and the upper end of the atomizer body 3; a valve port for controlling the medicine to enter the atomizer body 3 is arranged in the medicine pumping pipeline 331; the drug pumping pipeline 331 is connected with a pumping pipeline 332, and the pumping pipeline 332 is used for pumping the drug into the drug pumping pipeline 331.

The air exhaust pipe 332 further pumps the liquid medicine in the medicine storage tank into the medicine exhaust pipe 331 by exhausting air, and the liquid medicine does not enter the atomizer body 3 due to the blockage of the valve port in the medicine exhaust pipe 331 at this time. Meanwhile, due to the blocking effect of the valve port, the oxygen flow does not enter the medicine pumping pipeline 331 but actually enters the mask body 11 through the air outlet pipeline 32.

Description of the structure of the valve port in the drug extraction tube 331:

the utility model discloses a structure of two kinds of valve ports, one of them is the check valve structure, as shown in fig. 5-8, the check valve has included a pipeline that has two openings, and the opening size of one of them is greater than the other, is provided with the baffle (3331, 222) that incompletely seals closed opening at big opening, and places a piece of blockking (334, 221) in the pipeline, and the piece of blockking (334, 221) can freely move in the pipeline. And the barriers (334, 221) can completely cover the small openings, but not the large openings. When the stoppers (334, 221) are attached to the baffle plates (3331, 222), the chemical solution can pass through the baffle plates (3331, 222). The realization principle of the one-way valve is as follows: when the air pressure on the small opening side is lower than that on the large opening side, such as air suction on the small opening side or air blowing on the large opening side, the blocking members (334, 221) cling to and cover the small opening, thereby preventing air on the large opening side from passing through the check valve; when the air pressure on the small opening side is higher than that on the large opening side, such as by sucking air on the large opening side or blowing air on the small opening side, the blocking members (334, 221) abut against the blocking members (334, 221), thereby allowing air or liquid to pass through the check valve. In some embodiments, the openings on both sides of the conduit may be of similar or equal size, but a restriction (333, 220) may be provided in the conduit to reduce the inner diameter of the conduit.

Preferably, a one-way valve for use in the drug withdrawal conduit 331 is provided adjacent to the nebulizer body 3.

When the one-way valve is provided in the drug pumping channel 331, the air pumping device starts to pump air in the air pumping channel 332, and the blocking members (334, 221) close the drug pumping channel 331, so that the drug solution flows into the drug pumping channel 331 and the gas in the nebulizer body 3 does not enter the drug pumping channel 331. When the air extractor stops working, the liquid medicine flows into the atomizer body 3 through the one-way valve.

The other valve port is a two-way valve 335, and is disposed at the connection between the drug pumping pipeline 331 and the air pumping pipeline 332, as shown in fig. 9 and 10, the two-way valve 335 is connected to a motor, which is not shown in the drawings; the motor is linked with an air extractor that controls the air extraction duct 332. After the motor receives the working information preventing the connection between the air exhaust pipeline 332 and the atomizer body 3, the two-way valve 335 is rotated by the motor to the state shown in fig. 9, that is, the liquid medicine can only flow between the air exhaust pipeline 332 and the medicine exhaust pipeline 331, but cannot enter the atomizer body 3, the air exhaust device starts to exhaust the gas in the air exhaust pipeline 332, the liquid medicine in the medicine storage tank is further pumped into the medicine exhaust pipeline 331, and when the sensors of the air exhaust pipeline 332, such as the light sensor and the liquid sensor, sense the liquid medicine, the air exhaust device stops working. Or the air extracting device stops working after working for a certain time. When the motor receives the work information of connecting the air exhaust pipeline 332 and the atomizer body 3, the two-way valve 335 is rotated by the motor to the state shown in fig. 10, that is, the liquid medicine in the air exhaust pipeline 332 flows into the atomizer body 3, and the driving force for making the liquid medicine in the air exhaust pipeline 332 flow into the atomizer body 3 may be that the air exhaust device changes air exhaust into blowing air into the air exhaust pipeline 332, or that the liquid medicine with a low pressure trend in the atomizer body 3 flows into the atomizer body 3.

Preferably, an air flow sensor or an air pressure sensor is arranged in the air outlet pipeline 32. When the sensor senses the change of the air flow or the air pressure, the sensor sends working information to the motor. For example, when the sensor senses oxygen flow, the motor rotates the two-way valve to the state shown in fig. 9. When the sensor does not sense the oxygen flow, the motor rotates the two-way valve to the state as shown in fig. 10, and the liquid medicine enters the atomizer body 3.

Structural description of the nebulizing mask:

the invention also discloses an atomization mask, which comprises a mask body 11, an elastic band 16 for fixing the mask body 11 on the face of a patient and a vent 12 arranged on the mask body 11, as shown in figures 1 to 4.

Both ends of the elastic band 16 are detachably fixed to both sides of the outer surface of the mask body 11. The disassembling mode includes but is not limited to the mode of realizing through buckles and magic tapes. The elastic band 16 can be easily replaced by a detachable manner. Further, if the mode of buckle is adopted, can fix the buckle on face guard body 11 through columniform mounting to make things convenient for the buckle to rotate around cylindrical mounting, play the effect of adjustment elastic cord 16 degrees.

Preferably, as shown in fig. 4, a sliding sheet 121 is disposed on the mask body 11, and a sliding region of the sliding sheet 121 covers the vent 12. Because different patients have different requirements on the oxygen amount, after the high-flow oxygen enters the mask, the air pressure in the mask is reduced under the Venturi effect, air flows into the mask body through the air vent 12, and the air amount is different due to different sizes of the air vent. The size of the vent 12 can be varied by the slide 121 to control the amount of air that flows into the mask body 11 under the venturi effect, thereby varying the proportion of oxygen that is inhaled by the patient.

Preferably, the mask body 11 is provided with a groove 120 for limiting the sliding of the sliding sheet 121, and the vent 12 is located on the groove 120. The groove 120 serves as a track for the sliding of the slide plate 121, and serves to prevent the slide plate 121 from being separated from the mask body 11. On the other hand it is easier to guide the user to use the slider 121.

Preferably the edges of the mask body are wrapped with a rubber layer 14. The rubber layer 14 may optionally be metal wrapped. This increases the wearing comfort on the one hand. On the other hand, the mask body 11 is made of metal with good plasticity, and the outer edge of the mask can be adjusted to be more attached to the face on the premise that the mask body is made of flexible material.

Preferably, the mask body 11 is provided with a metal sheet 15 capable of being shaped, the metal sheet 15 is located on the mask body 11, and when the patient wears the mask, the position of the metal sheet 15 corresponds to the bridge of the nose. The metal sheet 15 is arranged on the outer surface of the mask body 11 and is matched with the bridge of the nose of a patient. After the face guard is worn on the face of a patient, the face guard at the nose bridge is close to the nose bridge through extruding the metal sheet 15, the face guard is attached to the nose bridge, and the face guard is not prone to falling off.

Preferably, a one-way valve is arranged at the joint of the air outlet pipeline 32 and the mask. Taking the check valve shown in fig. 5 and 6 as an example, the left side of the check valve faces the atomizer body 3. When the patient inhales, the one-way valve is shown in figure 6 and oxygen flows into the mask. When the patient exhales, the one-way valve is shown in fig. 5, and the gas exhaled by the patient does not enter the atomizer body 3 but is discharged through the vent, so that the exhaled carbon dioxide is prevented from remaining.

Preferably, a sensor 13 for sensing the exhalation of the patient is arranged in the mask, the sensor 13 is connected with a control center, and the control center is further in signal connection with a device for providing a high-flow oxygen source and an air exhaust device for controlling the air exhaust pipeline. The suction device operates, for example, when the sensor 13 senses the exhalation of the patient. When the sensor 13 senses that the patient is inhaling, the oxygen supply apparatus operates and supplies oxygen to the patient.

In a specific embodiment, the valve port in the drug pumping pipeline 331 is a one-way valve, when the sensor 13 senses the gas exhaled by the patient, the oxygen supply device does not work, the air pumping device pumps air, the blocking member 334 seals the drug pumping pipeline 331, the drug solution enters the drug pumping pipeline 331 and does not enter the nebulizer body 3, the one-way valve located between the nebulizer body 3 and the mask body 11 is in the state shown in fig. 5, and the gas exhaled by the patient does not enter the nebulizer body 3 but exits the mask body 11 through the vent 12. When the sensor 13 senses that the patient inhales, the air exhaust device does not work, or the air is blown into the air exhaust pipeline 332, the liquid medicine enters the atomizer body 3, the oxygen supply device works, at the moment, the one-way valve between the atomizer body 3 and the mask body 11 is in the state shown in fig. 6, and the patient inhales oxygen. Preferably, the one-way valve between the nebulizer body 3 and the mask body 11 is arranged close to the mask body 11, the reaction of the one-way valve being more sensitive due to the closer proximity to the patient

Preferably, the sensor is an air pressure sensor or an air flow sensor.

Preferably, the outlet duct 32 is connected to the mask by a flexible hose 21. In the existing nebulizing mask, the connecting tube 2 shown in fig. 1 is generally used to connect the nebulizer body 3 and the mask body 11, so that the nebulizer body 3 is tilted rather than vertical for a lying patient, which is not favorable for nebulization. The present invention employs a bendable hose 21, so that the atomizer body 3 can be adjusted.

In addition, the bendable hose 21 can be bent at any angle, so that when the mask is worn on the face of a patient, the atomizer body 3 is prevented from abutting against the body of the patient, and the comfort level is prevented from being affected. On the other hand, when the head of the patient moves, the bendable hose 21 can be bent with the force, so that the movement of the patient is not affected. Bendable hose 21 includes, but is not limited to, threaded pipe, flexible plastic pipe, flexible rubber pipe, braided pipe.

Claims (10)

1. An atomizer for patients with chronic obstructive pulmonary disease, comprising an atomizer body, an inlet conduit connecting the atomizer body and providing a high flow oxygen source, and an outlet conduit connecting the atomizer body and a face mask, characterized in that:

the medicine extracting pipeline is connected with the medicine storage tank and the upper end of the atomizer body;

a valve port for controlling the medicine to enter the atomizer body is arranged in the medicine pumping pipeline;

the medicine pumping pipeline is connected with an air pumping pipeline, and the air pumping pipeline is used for pumping medicine into the medicine pumping pipeline.

2. The nebulizer of claim 1, wherein:

and an airflow sensor or an air pressure sensor is arranged in the air outlet pipeline.

3. A nebulizer as claimed in claim 2, wherein:

the valve port is a one-way valve close to the atomizer body.

4. A nebulizer as claimed in claim 2, wherein:

the valve port is a two-way valve and is arranged at the joint of the medicine pumping pipeline and the air pumping pipeline, and the two-way valve is connected with a motor;

the motor is linked with an air extractor for controlling the air extraction pipeline.

5. An atomizing mask connected with the atomizer of any one of claims 1 to 4, wherein:

comprises a mask body, an elastic band for fixing the mask body on a patient face and an air vent arranged on the mask body;

the mask body is further provided with a sliding sheet, and the sliding area of the sliding sheet covers the air vent.

6. The mask according to claim 5, wherein:

the edge of the mask body is wrapped with a rubber layer.

7. The mask according to claim 5, wherein:

the mask comprises a mask body and is characterized in that a metal sheet capable of being shaped is arranged on the mask body, the metal sheet is positioned on the mask body, and when a patient takes the mask, the position of the metal sheet corresponds to the position of the bridge of the nose.

8. The mask according to claim 5, wherein:

a one-way valve is arranged between the atomizer and the face mask.

9. A mask as claimed in any one of claims 6 to 8, wherein:

the mask body is provided with a groove for limiting the sliding of the sliding sheet, and the vent hole is positioned on the groove.

10. A mask as claimed in claim 9, wherein:

the mask is internally provided with a sensor for sensing the exhalation of a patient, the sensor is connected with a control center, and the control center is also in signal connection with a device for providing a high-flow oxygen source and an air extractor for controlling the air extraction pipeline.

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