CN108525087B

CN108525087B - Atomizer for medical care

Info

Publication number: CN108525087B
Application number: CN201810403357.2A
Authority: CN
Inventors: 彭静; 钟红玲; 张玲; 陈冀; 孔维林; 张淑霞
Original assignee: First Affiliated Hospital of PLA Military Medical University
Current assignee: First Affiliated Hospital of PLA Military Medical University
Priority date: 2018-04-28
Filing date: 2018-04-28
Publication date: 2021-02-05
Anticipated expiration: 2038-04-28
Also published as: CN108525087A

Abstract

The invention belongs to the technical field of medical appliances, and particularly discloses an atomizer for medical care, which comprises a liquid storage chamber, an atomizing chamber and a mist outlet pipeline, wherein the mist outlet pipeline is communicated with the atomizing chamber, a gas pipe is arranged in the liquid storage chamber, the upper end of the gas pipe is communicated with the atomizing chamber, a pressure limiting valve is arranged in the gas pipe, one end of the gas pipe, which is communicated with the atomizing chamber, is in a horn shape expanding outwards, and the horn bore is sealed with the atomizing net, a current-limiting pipe with the aperture smaller than the current-limiting pipe is arranged between the current-limiting pipe and the horn-shaped port, the current-limiting pipe is arranged in an arc shape which is gradually enlarged, a plurality of guide plates are arranged on the left inner wall and the right inner wall of the pipeline at the position between the current-limiting pipe and the horn-shaped opening in a staggered manner, the guide plates are smaller than the cross section of the pipeline, the lower end of the current-limiting pipe is connected with an air compression device, capillaries which are mutually communicated are arranged around the liquid storage chamber, the capillaries are. The scheme has good atomization effect and is easy to clean residual liquid medicine in the atomizer.

Description

Atomizer for medical care

Technical Field

The invention belongs to the technical field of medical appliances, and particularly relates to an atomizer for medical care.

Background

Under the condition that air pollution is more and more serious nowadays, and the climate is suddenly cooled during season change, the number of patients with respiratory diseases is greatly increased, and the traditional medicine taking and injection therapy cannot meet the conditions of various complex therapies and the requirements of modern people on high quality of life, so that the atomization therapy of liquid medicine is carried out at the same time. The atomization treatment of the liquid medicine is to atomize the liquid medicine into tiny particles by adopting an atomizer, and the medicine enters the respiratory tract and the lung to deposit in a respiratory inhalation mode, thereby achieving the aim of painless, rapid and effective treatment. No matter the atomizer that has now adopts air compression atomizing or ultrasonic atomization, it is big, arouse patient's breathing shortcoming such as uncomfortable to have many atomizing particles, and can't effectively clear up the liquid medicine of remaining in the atomizer after once using, consequently often is disposable, and this not only is energy-concerving and environment-protective, still can cause very big waste, even repetitious usage, also will bring very big inconvenience for the atomizing of next different medicines.

Disclosure of Invention

The invention aims to provide a medical care atomizer which can effectively clean liquid medicine remained in the atomizer.

In order to achieve the purpose, the basic scheme of the invention is as follows: an atomizer for medical care comprises a liquid storage chamber, an atomizing chamber and a mist outlet pipeline, wherein the mist outlet pipeline is communicated with the atomizing chamber, a gas pipe is arranged in the liquid storage chamber, the upper end of the gas pipe is communicated with the atomizing chamber, a pressure limiting valve is arranged in the gas pipe, the gas pipe is divided into a liquid mixing section and a liquid spraying section by the pressure limiting valve, one end of the gas pipe communicated with the atomizing chamber is in an upwards-expanding horn shape, an atomizing net is sealed on the diameter of the horn, the diameter of the atomizing net ranges from 1 micron to 5 microns, a flow limiting pipe with the diameter smaller than that of the gas pipe is arranged between the gas pipe and a horn-shaped port, the diameter of the flow limiting pipe is gradually enlarged from the middle part to two ends, a plurality of flow guide plates are arranged on the left inner wall and the right inner wall of the gas pipe between the flow limiting pipe and the horn-shaped port in a staggered manner, the lower end of, The air delivery pipe has elasticity.

The working principle of the basic scheme is as follows: when the medicine is atomized, the liquid medicine is put into the liquid storage chamber. The air compressor is started, and high-speed compressed air flow continuously enters the air conveying pipe. Meanwhile, the liquid medicine in the liquid storage chamber is absorbed by the capillary tube, and the capillary tube is communicated with the gas conveying pipe due to the low air pressure near the high-speed flowing air flow, so that when the high-speed air flow passes through the communication part of the capillary tube and the gas conveying pipe, the communication part can generate large negative pressure, and the liquid medicine in the capillary tube is absorbed into the gas conveying pipe under the action of the negative pressure. Because the pressure limiting valve is arranged in the gas pipe, and the lower pressure limiting valve is in a closed state in an initial state, the air in the gas pipe can only be stored in the liquid mixing section, so that the air in the liquid mixing section is mixed with the liquid medicine entering the gas pipe. When the air pressure in the liquid mixing section is greater than the preset pressure value of the pressure limiting valve, the pressure limiting valve is opened, and the air mixed with the liquid medicine enters the atomizing chamber through the liquid spraying section at a high speed.

Because the flow-limiting tube with the aperture smaller than that of the gas pipe is arranged between the gas pipe and the trumpet-shaped port, the aperture of the flow-limiting tube is gradually enlarged from the middle part to the two ends, and the flow velocity of the air mixed with the liquid medicine can be increased again when the air passes through the flow-limiting tube. The left and right inner walls of the pipeline between the flow limiting pipe and the trumpet-shaped opening are provided with a plurality of guide plates in a staggered manner, so that when airflow impacts the first guide plate, liquid medicine particles can be crushed by the guide plates; and the guide plate is crisscross the setting, and consequently the air current can pass through the passageway that forms between the adjacent guide plate, and this passageway is perpendicular with the inner wall of gas-supply pipe, consequently can strike the inner wall of gas-supply pipe when the air current passes through the passageway, makes the liquid medicine granule smashed once more to can be smashed several times when the air current flows through a plurality of guide plates, the atomizing forms fog. Because the horn-shaped port of the gas transmission pipe is provided with the atomizing net, the mist reaching the standard grain diameter enters the atomizing chamber through the atomizing net and is sucked by the patient through the mist outlet pipeline; and the mist which does not reach the standard grain diameter is blocked by the atomizing net in the gas transmission pipe for secondary atomization until the atomized grain diameter reaches the corresponding standard.

After the atomizer is used, the liquid medicine in the liquid storage chamber is used up, the mist outlet pipeline is closed, and the liquid storage chamber and the atomizing chamber are inflated through the gas conveying pipe. After the air inflation is finished, the mist outlet pipeline is opened, the middle part of the liquid storage chamber is manually or automatically and rapidly extruded for multiple times, and the liquid medicine remained in the liquid storage chamber, the gas pipe, the atomizing chamber and the mist outlet pipeline is carried by the circulated high-speed air to be sprayed out of the gas pipe and the mist outlet pipeline, so that the residual liquid medicine is effectively cleaned.

The beneficial effect of this basic scheme lies in: when the gas just enters the gas conveying pipe, as the liquid medicine does not exist in the gas conveying pipe, the gas can not be treated by atomization if the gas is directly discharged from the mist outlet pipe, and the energy is also consumed. Therefore, the scheme is provided with the pressure limiting valve, so that the gas pipe is divided into the liquid mixing section and the liquid spraying section by the pressure limiting valve, the gas flow initially entering the gas pipe can be uniformly mixed with the liquid medicine, and the mixing uniformity of the liquid medicine and the air is improved. The flow limiting pipe is arranged in the infusion tube, so that the flow velocity of the air flow can be further improved, the impact force is larger when the air flow impacts the inner wall of the guide plate or the air delivery pipe, and the crushing and atomization of the liquid medicine are facilitated. This scheme is through setting up a plurality of guide plates, can realize smashing the atomizing many times of liquid medicine, and atomization effect is better. This atomizer utilizes the atomizing net to screen the atomized particles, can improve atomization effect, makes the inspiratory atomized particles of patient more even, careful, and treatment is better. The atomizer can effectively clean the liquid medicine remained in the atomizer after use, can be repeatedly used, is energy-saving and environment-friendly, and avoids waste.

Further, the one end tilt up that the gas transmission pipe inner wall was kept away from to the guide plate, and inclination is 15 degrees, makes the guide plate to a certain extent can play the effect of upwards leading to the air current, promotes the smoothness nature that gas flows.

Furthermore, a guide plate which inclines towards the direction of the mist outlet pipeline is arranged in the atomizing chamber, and plays a role in guiding the airflow.

Furthermore, the end of the mist outlet pipeline, which is far away from the atomizing chamber, is provided with a mist outlet joint, and the mist outlet joint can be used for connecting a face mask or an air pipe, so that the mist outlet joint is convenient for different people to use.

Furthermore, go out fog joint department and can dismantle and be connected with the fog lid, be convenient for to the protection of going out fog pipeline and atomizer chamber, prevent external pollution.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a medical care nebulizer of the invention.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

description of reference numerals: the atomizing device comprises a box body 1, an atomizing chamber 101, a liquid storage chamber 102, a mist outlet pipeline 2, a mist outlet joint 3, a feeding hole 4, a guide plate 5, an atomizing net 6, a guide plate 7, a gas pipe 8, a liquid mixing section 81, a liquid spraying section 82, a flow limiting pipe 821, a capillary tube 9, a pressure limiting valve 10 and an air compressor 11.

As shown in fig. 1, an atomizer for medical care comprises a cylindrical box body 1 made of medical elastic plastic, wherein the box body 1 is transparent, dosage scales are arranged on the side wall of the box body 1, and a feeding hole 4 is formed in the side wall of the middle part of the box body 1. Be equipped with the baffle in the box 1, the baffle is the middle part of heavy box 1, and the baffle is separated into liquid reserve room 102 and atomizer chamber 101 with box 1 internal portion, and atomizer chamber 101 is located liquid reserve room 102 top, and feed inlet 4 is located the lateral wall of liquid reserve room 102. Be equipped with the play fog pipeline 2 with the atomizer chamber 101 intercommunication on the left side lateral wall of atomizer chamber 101, the left end of going out fog pipeline 2 is connected with a fog joint 3, and a fog joint 3 can be the same as connecting face guard or trachea etc. can select different external connection device according to patient's condition. The fog outlet joint 3 is detachably connected with a fog cover.

Fixedly connected with air supply pipe 8 in the liquid storage chamber 102, the diapire that air supply pipe 8 lower extreme runs through the liquid storage chamber 102 extends to the liquid storage chamber 102 outside, and in air supply pipe 8 upper end passed the baffle and extended to atomizer chamber 101, equal sealing connection between air supply pipe 8 and liquid storage chamber 102 diapire, the baffle. The lower end of the air pipe 8 is connected with an air compression device which is an air compressor 11. The middle part of the gas pipe 8 is provided with a pressure limiting valve 10, the gas pipe 8 is divided into a liquid mixing section 81 and a liquid spraying section 82 by the pressure limiting valve 10, and the liquid spraying section 82 is positioned above the liquid mixing section 81. The gas pipe 8 of the liquid mixing section 81 is provided with a section of flow-limiting pipe 821, the flow-limiting pipe 821 is an arc-shaped device with the aperture gradually enlarged from the middle part to the two ends, the aperture of the middle part of the flow-limiting pipe 821 is smaller than that of the gas pipe 8, and the aperture of the end part of the flow-limiting pipe 821 is equal to that of the gas pipe 8. The air pipe 8 is provided with a plurality of guide plates 7 on the left inner wall and the right inner wall above the flow limiting pipe 821 in a staggered mode, the area of each guide plate 7 is smaller than the area of the inner circle of the pipeline, the area of each guide plate 7 is larger than one half of the area of the inner circle of the pipeline, and therefore the air ventilation space is arranged between the side face of each guide plate 7 and the inner wall of the air pipe 8. The one end that 8 inner walls of gas-supply pipe were kept away from to a plurality of guide plates 7 all upwards inclines, and inclination is 15 degrees, makes guide plate 7 to a certain extent can play the effect of upwards direction to the air current, promotes the smoothness nature that the gas flows. The upper end of the gas pipe 8 is in a horn shape with the aperture gradually enlarged upwards, the aperture of the horn is fixedly connected with an atomization net 6, and the aperture of the atomization net 6 is in a nanometer level. The atomizing chamber 101 is provided with an obliquely arranged guide plate 5 with the upper end deflected leftwards at the position above the atomizing screen 6.

Capillary tubes 9 are fixedly arranged on the side walls of four sides in the liquid storage chamber 102, the two capillary tubes 9 are communicated with each other, the capillary tube 9 on the lower side is communicated with the gas conveying pipe 8, a one-way valve is arranged between the capillary tube 9 and the gas conveying pipe 8, and the one-way valve can be opened from the capillary tube 9 to the inside of the gas conveying pipe 8 in a one-way mode. The capillary tube 9 and the gas transmission pipe 8 are both made of medical elastic plastics.

When the medicine is atomized, the medicine liquid is put into the liquid storage chamber 102. The air compressor 11 is activated and a high-speed flow of compressed air continues into the air delivery conduit 8. Meanwhile, the liquid medicine in the liquid storage chamber 102 is absorbed by the capillary 9, and the capillary 9 is communicated with the air conveying pipe 8 due to low air pressure near the high-speed flowing air flow, so that when the high-speed air flow passes through the communication part of the capillary 9 and the air conveying pipe 8, larger negative pressure is generated at the communication part, and the liquid medicine in the capillary 9 is absorbed into the air conveying pipe 8 under the action of the negative pressure. Because the pressure limiting valve 10 is arranged in the air conveying pipe 8, and the lower pressure limiting valve 10 is in a closed state in an initial state, the air in the air conveying pipe 8 can only be stored in the liquid mixing section 81, so that the air in the liquid mixing section 81 is mixed with the liquid medicine entering the air conveying pipe 8. When the air pressure in the liquid mixing section 81 is greater than the preset pressure value of the pressure limiting valve 10, the pressure limiting valve 10 is opened, and the air mixed with the liquid medicine enters the atomizing chamber 101 through the liquid spraying section 82 at a high speed.

Because the flow-limiting tube 821 with the aperture smaller than that of the gas pipe 8 is arranged between the gas pipe 8 and the trumpet-shaped port, and the flow-limiting tube 821 is arranged in an arc shape with the aperture gradually enlarged from the middle part to the two ends, the flow velocity of the air mixed with the liquid medicine is increased again when the air passes through the flow-limiting tube 821. The left and right inner walls of the pipeline between the current-limiting pipe 821 and the trumpet-shaped opening are provided with a plurality of guide plates 7 in a staggered manner, so that when airflow impacts the first guide plate 7, liquid medicine particles can be crushed by the guide plates; and guide plate 7 is crisscross the setting, and consequently the air current can pass through the passageway that forms between the adjacent guide plate 7, and this passageway is perpendicular with the inner wall of gas-supply pipe 8, consequently can strike the inner wall of gas-supply pipe 8 when the air current passes through the passageway, makes the liquid medicine granule smashed once more to can be smashed several times when the air current flows through a plurality of guide plates 7, atomizes, forms the fog. Because the horn-shaped port of the gas transmission pipe 8 is provided with the atomizing net 6, the mist reaching the standard grain diameter enters the atomizing chamber 101 through the atomizing net 6 and is sucked by the patient through the mist outlet pipeline 2; and the mist which does not reach the standard grain diameter is blocked in the gas transmission pipe 8 by the atomizing net 6 for secondary atomization until the atomized grain diameter reaches the corresponding standard.

After the atomizer is used, the liquid medicine in the liquid storage chamber 102 is used up, the mist outlet pipeline 2 is closed, and the liquid storage chamber 102 and the atomizing chamber 101 are inflated through the air conveying pipe 8. After the air inflation is finished, the mist outlet pipeline 2 is opened, the middle part of the liquid storage chamber 102 is manually or automatically and rapidly extruded for multiple times, and the liquid medicine remained in the liquid storage chamber 102, the air pipe 8, the atomizing chamber 101 and the mist outlet pipeline 2 is carried by the circulated high-speed air and is sprayed out of the air pipe 8 and the mist outlet pipeline 2, so that the residual liquid medicine is effectively cleaned.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Medical care uses atomizer, its characterized in that: comprises a liquid storage chamber, an atomizing chamber and a mist outlet pipeline, wherein the mist outlet pipeline is communicated with the atomizing chamber, a gas pipe is arranged in the liquid storage chamber, the upper end of the gas pipe is communicated with the atomizing chamber, a pressure limiting valve is arranged in the gas pipe, the gas pipe is divided into a liquid mixing section and a liquid spraying section by the pressure limiting valve, one end of the gas pipe communicated with the atomizing chamber is in a horn shape expanding upwards, and the horn bore is last to be sealed with the atomizing net, the aperture range on the atomizing net is 1 ~ 5 microns, be equipped with the current-limiting pipe that the aperture is less than the gas-supply pipe between gas-supply pipe and the tubaeform port, the aperture of current-limiting pipe is enlarged gradually to both ends by the middle part, crisscross a plurality of guide plates that are equipped with on the gas-supply pipe left and right sides inner wall of department between current-limiting pipe and the tubaeform opening, the gas-supply pipe lower extreme is connected with air compressor arrangement, be equipped with the capillary of mutual intercommunication around the stock solution indoor, capillary and gas-supply pipe intercommunication, the stock.

2. The medical-care nebulizer according to claim 1, characterized in that: one end of the guide plate, which is far away from the inner wall of the gas transmission pipe, inclines upwards, and the inclination angle is 15 degrees.

3. The medical-care nebulizer according to claim 2, characterized in that: the atomizing chamber is internally provided with a guide plate which inclines towards the direction of the mist outlet pipeline.

4. The medical-care nebulizer according to claim 3, characterized in that: one end of the mist outlet pipeline, which is far away from the atomizing chamber, is provided with a mist outlet joint, and the mist outlet joint can be used for connecting a face mask or an air pipe.

5. The medical-care nebulizer according to claim 4, wherein: the fog outlet joint is detachably connected with a fog cover.