Atomizing device of two modules
Technical Field
The invention relates to the field of medical instruments, in particular to a dual-module atomizing device.
Background
In modern clinical medicine, a ventilator as an apparatus capable of autonomously ventilating instead of a human, has been widely used in anesthesia and respiratory management during respiratory failure and major surgery, and respiratory support treatment and emergency resuscitation. It is important to occupy a very important place in the modern medical field, often in ICU wards. The respirator has the function of supplying gas, can replace the work of human respiratory muscles, and can generate certain respiratory rhythms, including respiratory frequency and respiratory ratio, and the function of the respiratory central nerve to govern the respiratory rhythms. And provides a suitable tidal Volume (VT) or Minute Ventilation (MV) to meet the needs of respiratory metabolism. The air supplied by the breathing machine is preferably heated and humidified to replace the nasal function of the human body, and can supply O2 higher than the O2 in the atmosphere so as to improve the concentration of inhaled O2 and improve oxygenation. The aerosol inhalation treatment is an important and effective treatment method in the treatment method of respiratory diseases, the medicinal liquid is atomized into tiny particles by adopting an atomizer, and then a user inhales the medicinal liquid into respiratory tracts and lung deposition through respiration and absorbs the medicinal liquid through mucous membrane of the respiratory tracts and lung deposition, so that the purpose of painless, rapid and effective treatment is achieved. Therefore, an aerosolized therapeutic device that can be effectively used with a ventilator is important for a particular patient. However, in the using process of the existing breathing machine, the atomization therapeutic device cannot actively judge the breathing frequency of the breathing machine, the atomization device generally sprays at the same frequency as the set breathing frequency of the breathing machine, the operation requirement on a user is high in the actual using process, and the phenomenon that atomization and breathing are asynchronous easily occurs is dangerous for a patient. And the existing atomizer with the breath detection function has defects in the design of an air passage, and has the problem that weak and small air flow is difficult to detect. After the atomizer is used for a long time, atomized liquid medicine can generate accumulated water to cause the defect that electronic components are easy to burn out.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a dual module atomizer that is easy and flexible to use, and waterproof and structurally durable.
In order to achieve the above purpose, the invention provides a two-module atomizing device, which comprises an atomizing host, a three-way pipe communicated with the atomizing host, a controller connected with the atomizing host, and a breathing machine and a mask which are respectively communicated with the three-way pipe. The atomizing host comprises a side cover, a nozzle arranged on one side of the side cover, a liquid medicine bottle communicated with the nozzle arranged on the other side of the side cover, an atomizing sheet communicated with the nozzle arranged on one side of the liquid medicine bottle, and a first plug-in port arranged below the liquid medicine bottle. The bottom in the nozzle is provided with a partition plate dividing the interior of the nozzle into an upper atomization bin and a lower airflow chamber. The baffle is provided with an airflow detection structure extending towards the inside of the three-way pipe. The air flow detection structure comprises an inverted trapezoid plate which is integrally connected with the nozzle and extends towards the inside of the three-way pipe, a lug which is abutted against the end part of the inverted trapezoid plate is arranged inside the three-way pipe, a gas chamber which is communicated with the breathing machine and accommodates gas to flow is arranged inside the inverted trapezoid plate, a slot which is arranged on the inner wall of the inverted trapezoid plate, a sensor which is used for detecting gas flowing through the gas chamber is arranged in the slot, and a first circuit board which is connected with the sensor is arranged in the first inserting port. The atomizing piece is connected with the first circuit board. The sensor detects a gas flow signal in the gas chamber, then the signal is sent to the controller, and the controller drives the atomizing host to generate atomized liquid medicine, and the atomized liquid medicine is sprayed out of the nozzle for administration. Therefore, in the actual use process, the structure has two modes, namely, when the sensor works, the sensor is in a variable frequency mode, the breathing state of the breathing machine can be actively detected, the liquid medicine is atomized, and the phenomenon of asynchronous atomization and breathing is avoided; when the sensor is not in operation, the sensor is in a constant frequency mode, and the liquid medicine can be continuously supplied for atomization without detecting the breathing state of the breathing machine.
In some embodiments, the signal detected by the sensor is a detection signal of the ventilator flowing into the gas chamber in an exhalation state.
In some embodiments, the sensor is a gas flow sensor or a gas pressure sensor.
In some embodiments, the sensor is mounted in a slot in the inverted trapezoidal plate wrapped with silicone; the surface of the electric connection part of the sensor facing away from the slot 208 is coated with waterproof glue.
In some embodiments, a tee is connected to the nozzle. The middle port of the three-way pipe is connected with the nozzle of the atomization host machine in an interference connection mode. The side wall of the nozzle of the atomizing host and the three-way pipe are respectively provided with a clamping groove and a bulge which are mutually meshed and used for marking the connection direction, so that the user is prevented from assembling errors.
In some embodiments, the controller is further provided with a clamp fixedly mounted to the rail or table side of the hospital bed. The clamp consists of a buckle with one end for fixing the clamping controller and a movable clamp with the other end for fixing the fence or the desk side.
In some embodiments, the controller includes a housing, a key and an indicator light provided on the housing, a second circuit board provided in the housing and a battery connected to the second circuit board, and a second interface provided on one side of the housing and connected to the second circuit board. The second circuit board comprises a main control module, a key unit, an atomization driving module and a power circuit, wherein the key unit, the atomization driving module and the power circuit are respectively connected with the main control module. The power supply circuit is respectively connected with the battery and the atomization driving module. The main control module is connected with the indicator lamp. The second plug interface is connected with the first plug interface through an electric wire.
In some embodiments, the first interface and the second interface are detachably connected to form a circuit closed loop, and the first interface and the second interface are both provided with a detection metal contact, a circuit negative electrode metal contact, an atomization positive electrode metal contact and a power supply positive electrode metal contact, the detection metal contact on the first interface is connected with the sensor, and the detection metal contact on the second interface is connected with the main control module and is used for collecting signal output of the sensor. The circuit negative electrode metal contact on the second interface is connected with the atomization driving module, and the circuit negative electrode metal contact on the first interface is respectively connected with the atomization sheet and the sensor and is used for the circuit negative electrode shared by the sensor and the atomization sheet. The atomizing positive electrode metal contact and the atomizing drive module on the second interface, the atomizing positive electrode metal contact and the atomizing piece on the first interface are connected for providing the required alternating voltage of atomizing piece work. The power supply positive metal contact on the second plug interface is connected with a power supply circuit, and the power supply positive metal contact on the first plug interface is connected with the sensor and is used for providing direct current voltage required by the operation of the sensor.
In some embodiments, the controller further comprises a wireless communication module arranged on the main control module and used for wireless communication with the outside.
The invention has the advantages of convenient and flexible use, and waterproof and structurally durable effects. Because of two working modes, the variable frequency mode can actively detect the breathing state of the breathing machine and atomize liquid medicine, so that the phenomenon of unsynchronized atomization and breathing is avoided; the constant frequency mode can perform continuous liquid medicine atomization without detecting the breathing state of the breathing machine. The method comprises the steps that in a variable frequency mode, the breathing state of a breathing machine is judged through detecting the change of air flow in a pipeline, when an atomization main machine detects the flow of air generated in a pipe in the breathing state of the breathing machine, an electric signal is sent to an atomization device main body, and the atomization main machine is driven by the atomization device main body to carry out atomization administration of liquid medicine in the same ventilation pipeline; and when the atomization host detects that the breathing machine is in an inhalation state, the liquid medicine is not atomized. Not only realizes the combination of respiratory therapy and atomization therapy, but also has better therapeutic effect on symptoms; and avoid the phenomenon of unsynchronization of atomization and breathing. The continuous liquid medicine atomization can be carried out without detecting the breathing state of the breathing machine in the fixed frequency mode, so that various use requirements are met. In addition, the operation requirement for the user is low, and the use is simple and convenient. The spray nozzle is divided into an independent atomization bin and a chamber for detecting gas flow through the partition plate, so that the working air flow of the respirator can be detected without influencing atomization, the air flow detection and atomization spraying are mutually independent, various requirements are met, the operation is simple and convenient, and the purposes of convenient use and flexibility are realized. The gas chamber is formed by the combination of the bulge in the three-way pipe, the gas flow detection structure of the nozzle and the pipe wall of the three-way pipe, and the sensor for detecting the gas flow is arranged in the front end of the gas flow detection structure of the nozzle, so that the sensor is completely arranged in the gas chamber, the action area of the sensor and the gas flowing in the gas chamber is larger, and the gas flow detection sensitivity of the atomization device is higher. The part that the sensor can contact with steam sets up the fluting department in nozzle air current detection structure below, and the part that the sensor can not contact with steam scribble waterproof glue and carry out the waterproofing, can further prevent that the sensor from burning out because of atomizing the ponding of liquid medicine. The unique gas chamber design and waterproof design enable breath detection to be more accurate, waterproof performance of electronic components to be better, and waterproof and structural durability effects are achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a tee;
FIG. 3 is a schematic diagram of a tee and an atomizing host;
FIG. 4 is a schematic cross-sectional view of the tee connected to the atomizing host;
FIG. 5 is a schematic diagram of an atomizer host;
FIG. 6 is a schematic diagram of the front view of the atomizing host;
FIG. 7 is a schematic view of the atomizer main unit in bottom view;
FIG. 8 is a schematic diagram of a controller;
fig. 9 is a schematic block diagram of the circuit of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1-8, the two-module atomizing device comprises an atomizing main machine 2, a three-way pipe 1 communicated with the atomizing main machine 2, a controller 3 connected with the atomizing main machine 2, and a breathing machine and a mask which are respectively communicated with the three-way pipe 1. The breathing machine and the mask can be connected with the three-way pipe 1 in a tight fit manner, so that the connecting structure is simpler, and the apertures of the pipe orifices at the left end and the right end of the three-way pipe 1 are different, so that different ports for connecting the breathing machine and the mask are distinguished. Also comprises a clamp 4 which is fixedly arranged on the fence or table edge of the sickbed and is arranged on the controller 3. The clamp 4 is composed of a buckle with one end for fixing the clamping controller 3 and a movable clamp with the other end for fixing the fence or the desk side. The controller 3 further comprises a wireless communication module which is arranged on the main control module and used for wireless communication with the outside. The wireless communication module may employ WiFi and/or bluetooth. In some variant embodiments, the controller 3 further comprises a display screen connected to the main control unit for displaying the nebulization parameters and the user life parameters. The display screen can also adopt a touch screen to replace mechanical keys to further improve the interactive experience. The atomizing main unit 2 comprises a side cover 201, a nozzle 203 arranged on one side of the side cover 201, a liquid medicine bottle 204 communicated with the nozzle 203 arranged on the other side of the side cover 201, an atomizing sheet 206 communicated with the nozzle arranged on one side of the liquid medicine bottle 204, and a first plug-in port 2051 arranged below the liquid medicine bottle 204. An upper cap 202 is provided on the drug solution bottle 204. A partition 207 dividing the interior of the nozzle 203 into an upper atomization chamber 2031 and a lower airflow chamber 2032 is provided at the bottom inside the nozzle 203. The partition 207 is provided with an air flow detecting structure 2033 extending into the tee 1. The airflow detecting structure 2033 includes an inverted trapezoid plate integrally connected with the nozzle 203 and extending toward the inside of the tee 1, a bump 101 abutting against the end of the inverted trapezoid plate inside the tee 1, a gas chamber communicating with the ventilator and containing gas to flow inside the inverted trapezoid plate, a slot 208 provided on the inner wall of the inverted trapezoid plate, a sensor 209 provided in the slot 208 for detecting gas flowing through the gas chamber, and a first circuit board 205 provided in the first plug port 2051 and connected with the sensor 209. The atomizing sheet 206 is connected to the first circuit board 205. The sensor 209 is completely arranged in the gas chamber, so that the action area of the sensor 209 and the gas flowing in the gas chamber is larger, and the gas flow detection sensitivity of the atomization device is higher. The logic control, power supply and interaction of the portable nebulizer are all centralized on the controller 3. The sensor 209 detects a gas flow signal in the gas chamber, and then sends the signal to the controller 3, and the controller 3 drives the atomizing host 2 to generate atomized liquid medicine, and the atomized liquid medicine is ejected from the nozzle 203 to be administered. The signal detected by the sensor 209 is a detection signal of the ventilator flowing into the gas chamber in the exhalation state. The sensor 209 is a gas flow sensor or a gas pressure sensor. The sensor 209 is wrapped by silica gel 210 and installed in a slot 208 in the inverted trapezoid plate; the surface of the electric connection part of the sensor 209 facing away from the slot 208 is coated with waterproof glue, so as to further prevent the sensor 209 from being burnt out due to atomized liquid medicine ponding. The tee pipe 1 is connected with the nozzle 203, the middle port of the tee pipe 1 is connected with the nozzle 203 of the atomizing host 2, and the connection mode is also interference connection. The side wall of the nozzle 203 of the atomizing main machine 2 and the three-way pipe 1 are respectively provided with a clamping groove and a protrusion which are mutually meshed and used for identifying the connection direction, so that the user is prevented from assembling errors. The controller 3 includes a housing 303, a key 301 and an indicator lamp 302 provided on the housing 303, a second circuit board provided in the housing 303, a battery connected to the second circuit board, and a second plug-in port 304 connected to the second circuit board provided on one side of the housing 303. The second circuit board comprises a main control module, a key unit, an atomization driving module and a power circuit, wherein the key unit, the atomization driving module and the power circuit are respectively connected with the main control module. The power supply circuit is respectively connected with the battery and the atomization driving module. The main control module is connected with the indicator lamp. The second socket 304 is connected to the first socket 2051 by a wire. The power supply circuit includes a dc-ac conversion circuit and a booster circuit, and supplies ac voltage and dc voltage required for operation to the atomizing plate 206 and the sensor 209, respectively. In some variant embodiments, the power supply circuit further comprises a charging circuit and a power supply switching circuit, which can charge the battery and switch to external power supply when an external alternating voltage is connected. The first plug interface 2051 and the second plug interface 304 are detachably connected to form a circuit closed loop, the first plug interface 2051 and the second plug interface 304 are respectively provided with a detection metal contact, a circuit negative electrode metal contact, an atomization positive electrode metal contact and a power supply positive electrode metal contact, the detection metal contacts on the first plug interface 2051 are connected with the sensor 209, and the detection metal contacts on the second plug interface 304 are connected with the main control module and are used for collecting signal output of the sensor 209. The circuit negative metal contact on the second interface 304 is connected with the atomization driving module, and the circuit negative metal contact on the first interface 2051 is respectively connected with the atomization sheet 206 and the sensor 209, and is used for a circuit negative electrode shared by the sensor 209 and the atomization sheet 206. The atomizing positive metal contact on the second plug interface 304 is connected with the atomizing driving module, and the atomizing positive metal contact on the first plug interface 2051 is connected with the atomizing sheet 206, so as to provide an alternating voltage required by the operation of the atomizing sheet 206. The power supply positive metal contact on the second interface 304 is connected to a power circuit, and the power supply positive metal contact on the first interface 2051 is connected to the sensor 209 for providing a dc voltage required for the operation of the sensor 209.
As shown in fig. 9, the first plug interface 2051 and the second plug interface 304 are respectively provided with 4 metal contacts, namely a detection point a, a circuit negative electrode B, an atomization positive electrode C and a power supply positive electrode D, wherein the detection point a is respectively connected with the sensor 209 and the main control unit and is used for collecting signal output of the sensor 209; the circuit cathode B is respectively connected with the atomization driving unit, the atomization sheet 206 and the sensor 209 and is used for sharing the circuit cathode by the sensor 209 and the atomization sheet 206; the atomization anode C is respectively connected with the atomization driving unit and the atomization sheet 206 and is used for providing alternating voltage required by the operation of the atomization sheet 206; the power supply anode D is connected to the power supply circuit and the sensor 209, respectively, for providing a dc voltage required for the operation of the sensor 209. In this embodiment, the atomizing device further includes connection wires detachably and electrically connected to the first plug interface 2051 of the atomizing host 2 and the second plug interface 304 of the controller 3, respectively.
Working principle: in the variable frequency mode, the respiratory state of the breathing machine is judged by detecting the change of the air flow in the pipeline, when the atomizing host 2 detects the air flow generated in the pipeline in the respiratory state of the breathing machine, an electric signal is sent to the controller 3, and the controller 3 drives the atomizing host 2 to atomize and administer the liquid medicine in the same ventilation pipeline; when the atomization host 2 detects that the breathing machine is in an inhalation state, the liquid medicine is not atomized; in the constant frequency mode, the continuous atomization of the liquid medicine can be performed without detecting the breathing state of the breathing machine. And the sensor 209 used to detect the flow of gas in the gas chamber may be a gas flow sensor or a gas pressure sensor. The difference is that the gas pressure sensor can detect the gas pressure, when the sensor 209 of the atomizing host 2 detects the gas flow, the sensor sends corresponding electric signals to the controller 3, the main control unit reads positive numbers to represent that the gas pipeline is in positive gas pressure, namely, the breathing machine is in an expiration state, meanwhile, the atomizing host 2 is driven to atomize, and atomized liquid medicine enters the mouth of a patient together with the gas supply of the breathing machine through the mouth of the three-way pipe 1 and the mask. On the contrary, the negative number read by the main control unit represents that the gas pipeline is internally provided with gas negative pressure, namely the breathing machine is in an inhalation state at the moment, and the main control unit should control the atomizing main machine 2 to stop atomizing at the moment. The gas flow sensor 209 can detect the instantaneous flow and direction of the gas, the positive and negative of the data read by the main control unit indicate different flow directions of the gas, for example, the positive number can represent that the gas flows from the mouth of the ventilator to the inside of the three-way pipe 1, i.e. the ventilator is in an expiration state at the moment; the negative number represents the flow of gas from the inside of the tee 1 to the mouth of the ventilator, i.e. the ventilator is in the inspiration state, and whether the atomizing host 2 sprays in different states is consistent with the gas pressure sensor 209.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.