CN114366965A

CN114366965A - Medical breathing machine with humidifying and warming functions and working method thereof

Info

Publication number: CN114366965A
Application number: CN202210117067.8A
Authority: CN
Inventors: 肖强
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-07
Filing date: 2022-02-07
Publication date: 2022-04-19

Abstract

The application relates to a medical breathing machine with humidification and warming functions, which comprises: the device comprises a controller, a humidifying and warming mechanism, an air-oxygen mixing mechanism, a frequency coordination device, an oxygen tank, an air compressor and a mask. The hot water in the spiral pipe is used for heating the gas, so that the uniformity of heating the gas to be introduced is improved, and the use experience of a user of the breathing machine is improved; the air-oxygen mixing proportion can be conveniently adjusted by adjusting the opening degree of the first flow regulating valve and the second flow regulating valve, so that the convenience of debugging and using the breathing machine is improved; the reciprocating sliding of the sliding block can be simply controlled through the motor, the breathing frequency can be controlled by controlling the forward and reverse rotation switching frequency of the motor, the sliding block displacement can be controlled, the pressure of the gas to be introduced can be adjusted according to the lung pressure of a user, and the use convenience of the breathing machine is improved; through setting up waterproof ventilated membrane, improved the fail safe nature of using under the condition of having guaranteed to carry out the humidification effect to gas.

Description

Medical breathing machine with humidifying and warming functions and working method thereof

Technical Field

The application relates to the field of medical equipment, in particular to a medical breathing machine with a humidifying and warming function and a working method thereof.

Background

CN201410008729.3 discloses a humidifier for a respirator and a respirator, the technical scheme is as follows: comprises a water containing cavity enclosed by a main body and a bottom plate, the water containing cavity is divided into a closed liquid storage cavity and a heating cavity communicated with the outside by a partition plate vertically arranged in the water containing cavity, a channel is arranged on the clapboard, the channel is arranged to be adjacent to the bottom plate and communicates the liquid storage cavity with the heating cavity, wherein, the roof structure of main part has the baffle that extends towards the bottom plate in the heating intracavity, all has the clearance between the liquid level of baffle and heating chamber circumference lateral wall, heating intracavity, and the baffle includes first tube-shape part and the second tube-shape part that links to each other with the circumference lateral wall of first tube-shape part, and first tube-shape part forms out the air cavity, and the second tube-shape part constitutes the chamber of admitting air with going out the air cavity intercommunication, and the circumference lateral wall, baffle and the roof of baffle form the pouring groove altogether.

This a humidifier and breathing machine for breathing machine have following advantage: the second cylindrical part is provided with the second notch, so that the problem that the heating plate is dry-burned due to the fact that the liquid level in the heating cavity is blown away by the flowing of the air inflow at a high speed is solved, and the working safety of the humidifier is improved; the first cylindrical part is provided with the first notch, so that the flowing speed of the outlet air flow leaving the heating cavity is reduced, and the problem that the outlet air flow can take away water in the heating cavity or cause water splashing is avoided; the first gap and the second gap are set to be small, so that the baffle can guide the airflow from the air inlet cavity to blow the water surface in the heating cavity as much as possible, and most of water vapor is taken away, so that the humidity of the air is improved.

However, the humidifier for a ventilator and the ventilator also have the following disadvantages: the gas is heated unevenly, which is easy to cause unsmooth breathing of the user.

CN201610390852.5 discloses a breathing machine capable of automatically adjusting breathing frequency, which adopts the technical scheme that the breathing machine comprises a main body, a chassis arranged below the main body, an air purification mechanism arranged on one side of the main body and a breathing mechanism arranged on the other side of the main body, wherein a display screen, a switch and an operation panel are arranged on the main body; the respiratory mechanism comprises an air duct, a respiratory adjusting mechanism, an air outlet duct and a respiratory mask, wherein the air outlet duct and the respiratory mask are both arranged on the respiratory adjusting mechanism, the air duct is communicated with the respiratory mask through the respiratory adjusting mechanism, and the air outlet duct is arranged below the respiratory adjusting mechanism; a breathing adjusting unit is arranged in the breathing adjusting mechanism and comprises an air breathing pipe, an exhalation pipe and a breathing adjusting pipe, one end of the air breathing pipe is communicated with the air guide pipe, the other end of the air breathing pipe is communicated with the air outlet pipe through the exhalation pipe and is communicated with the respirator through the breathing adjusting pipe, an inhalation valve is arranged in the air breathing pipe, an exhalation valve is arranged in the exhalation pipe, and a breathing sensing unit is arranged in the breathing adjusting pipe; the breathing induction unit is internally provided with an induction sheet, two springs and two induction units, the induction sheet is positioned between the two induction units, the two springs are positioned on two sides of the induction sheet, the induction units comprise a ventilation plate and a pressure sensor, the pressure sensor is arranged on the ventilation plate and close to one side of the induction sheet, the ventilation plate is provided with a plurality of air holes, and the ventilation plate is parallel to the induction sheet; air purification mechanism includes the casing, sets up gas outlet and the inlet port of setting in casing one side in the casing top, gas outlet and main part intercommunication, be equipped with miniature pump, first pipe, second pipe, one-level purification unit and second grade purification unit in the casing, the bottom of casing is equipped with the aqueous solution, miniature pump fixes in the inside one side of casing, the one end and the miniature pump intercommunication of first pipe, the other end of first pipe sets up the below at the liquid level of aqueous solution, miniature pump passes through second pipe and one-level purification unit intercommunication, second grade purification unit sets up the top at one-level purification unit, one-level purification unit includes third pipe and a plurality of shower nozzles of setting in the third pipe below, the second pipe passes through third pipe and each shower nozzle intercommunication, second grade purification unit includes from supreme colloidizing cotton coarse filtration layer that sets gradually down, The nano-silver/HEPA/nano-photocatalyst filter comprises a HEPA filter layer, a nano-silver filter layer, a molecular sieve adsorption layer and a nano-photocatalyst filter layer; the main body is internally provided with a central processing unit, and the air suction valve, the air exhaust valve, the pressure sensor and the micro water pump are all electrically connected with the central processing unit.

This ability automatically regulated respiratory frequency's breathing machine has following advantage: through response piece and pressure sensor contact, by the switch of central processing unit control inhalation valve and exhalation valve door, thereby make the respiratory frequency of breathing machine unanimous with patient's respiratory frequency, patient's breathing is smooth and easy when guaranteeing the treatment, moreover, utilize miniature pump and shower nozzle among the one-level purification unit to realize air cycle and handle, adopt 5 layers of net gas stack technique to handle at second grade purification unit, the realization is to the high efficiency of air, high-quality purification, can also guarantee to eliminate the harmful substance in the air, provide the air of healthy environmental protection for the patient, the practicality of the device is improved.

However, the ventilator capable of automatically adjusting the breathing frequency also has the following disadvantages: the breathing frequency adjusting mode is complicated and is not beneficial to operation.

Therefore, there is a need for a ventilator that heats breathing gas uniformly and has a convenient breathing rate adjustment.

Disclosure of Invention

In order to solve the problems of nonuniform gas heating and complicated breathing regulation mode, the application provides a medical breathing machine with a humidifying and warming function and a working method thereof.

The application provides a medical breathing machine with humidification function of warming up includes: the device comprises a controller, a humidifying and warming mechanism, an air-oxygen mixing mechanism, a frequency coordination device, an oxygen tank, an air compressor and a mask;

the air-oxygen mixing mechanism is respectively connected with the oxygen tank and the air compressor and is used for mixing air and oxygen and adjusting the mixing proportion;

the humidifying and warming mechanism is matched with the air-oxygen mixing mechanism and is used for humidifying and warming the mixed gas;

the frequency coordination device is arranged on the side part of the air-oxygen mixing mechanism, is respectively matched with the mask and the air-oxygen mixing mechanism, and is used for receiving a control signal of the controller to adjust the breathing frequency;

further comprising: the temperature sensor is used for monitoring real-time data of the body temperature of the user; a pressure sensor for monitoring real-time data of the user's pulmonary pressure; the pulse sensor is used for monitoring real-time data of arterial pulsation of a user; and the controller is respectively connected with the temperature sensor, the pressure sensor and the pulse sensor, receives monitoring data and sends control signals to the air-oxygen mixing mechanism, the humidification warming mechanism and the frequency coordination device.

Further, the humidification/warming mechanism includes: the water storage cavity is arranged at the lower part of the humidifying and warming mechanism; the water outlet pipe is arranged at the lower part of the water storage cavity and is communicated with the interior of the water storage cavity; the three-way joint is arranged below the water storage cavity, and the upper end of the three-way joint is communicated with the lower end of the water outlet pipe; the first connecting pipe is arranged on the side part of the three-way joint, and the right side end of the first connecting pipe is communicated with the left side end of the three-way joint; the water pump is arranged below the water storage cavity, and the right side end of the water pump is communicated with the left side end of the first connecting pipe; the second connecting pipe is arranged on the side of the water storage cavity, and the lower end of the second connecting pipe is communicated with the upper end of the water pump; the spiral pipe is arranged above the water storage cavity, and the left side end of the spiral pipe is communicated with the upper end of the second connecting pipe; the return pipe is arranged above the water storage cavity, one end of the return pipe is communicated with the right side end of the spiral pipe, and the other end of the return pipe is communicated with the upper part of the water storage cavity; the water inlet pipe is arranged below the water storage cavity and is communicated with an external water source; the electromagnetic water inlet valve is arranged below the water storage cavity, and the right side end of the electromagnetic water inlet valve is communicated with the water inlet pipe; the third connecting pipe is arranged below the water storage cavity, one end of the third connecting pipe is communicated with the left side end of the electromagnetic water inlet valve, and the other end of the third connecting pipe is communicated with the right side end of the three-way joint;

further comprising: the heater is arranged at the bottom of the water storage cavity and is connected with the inner wall of the controller; the water temperature sensor is arranged in the middle of the inner wall of the water storage cavity and is electrically connected with the controller; and the liquid level sensor is arranged on the upper part of the inner wall of the water storage cavity and is electrically connected with the controller.

Through adopting above-mentioned technical scheme, improved the homogeneity to letting in gas heating, improved breathing machine user's use and experienced.

Further, the air-oxygen mixing mechanism comprises: the filter is arranged at the joint of the air-oxygen mixing mechanism and the air compressor and is communicated with the air compressor; the first air inlet joint is arranged on the side part of the first filter and is communicated with the first filter; the first air inlet pipe is arranged at the side part of the first air inlet joint and is communicated with the first air inlet joint; the first flow regulating valve is arranged on the first air inlet pipe, is communicated with the first air inlet pipe and is electrically connected with the controller; the second air inlet joint is arranged at the joint of the oxygen tank and the air-oxygen mixing mechanism and is communicated with the oxygen tank; the second air inlet pipe is arranged at the side part of the second air inlet joint and is communicated with the second air inlet joint, and the second flow regulating valve is arranged on the second air inlet pipe, is communicated with the second air inlet pipe and is electrically connected with the controller; the left end of the mixing cavity is communicated with the first flow regulating valve and the second flow regulating valve respectively; the air outlet pipe is arranged at the side part of the mixing valve and is communicated with the right side end of the mixing valve;

the air outlet pipe is positioned on the inner side of the spiral pipe of the humidifying and warming mechanism.

Through adopting above-mentioned technical scheme, adjust first flow control valve and second flow control valve aperture, can conveniently adjust empty oxygen mixing proportion, improved the convenience that breathing machine debugging was used.

Furthermore, the texture of the air outlet pipe is hard heat conduction material; the spiral pipe is made of hard heat conduction materials.

Furthermore, the lower part of the air outlet pipe is provided with a connecting piece, the connecting piece is arranged at the joint of the spiral pipe and the air outlet pipe, the upper end of the connecting piece is fixedly connected with the lower part of the air outlet pipe, and the lower end of the connecting piece is fixedly connected with the upper surface of the lower part of the spiral pipe;

the connecting piece both ends intercommunication, the middle part is provided with waterproof ventilated membrane, waterproof ventilated membrane texture is polytetrafluoroethylene.

Through adopting above-mentioned technical scheme, the waterproof ventilated membrane of vapor accessible of hot water evaporation gets into the outlet duct in the spiral pipe, increases gaseous humidity, thereby isolated water prevents simultaneously that water from directly getting into the outlet duct and causing the direct possibility of entering user's lung of water, has improved the fail safe nature of using under the circumstances of having guaranteed to carry out the humidification effect to gas.

Further, the filter includes: an air inlet disposed at a lower portion of the filter and communicated with the air compressor; the first cavity is arranged at the lower part of the filter and is communicated with the air inlet; the air outlet is arranged at the upper part of the filter and is communicated with the first air inlet joint of the air-oxygen mixing mechanism; the second cavity is arranged at the upper part of the filter and is communicated with the air outlet; the grid plates are respectively arranged on the lower part of the first cavity, between the first cavity and the second cavity and on the upper part of the second cavity and are in sliding connection with the inner wall of the filter; a desiccant disposed within the first cavity; a filter element disposed within the second cavity.

Further, the frequency coordination apparatus includes: the two ends of the pressurizing cavity are communicated; the inlet joint is arranged at the left end of the pressurizing cavity, is fixedly connected with the pressurizing cavity and is communicated with the air outlet pipe of the air-oxygen mixing mechanism; the outlet joint is arranged at the left end of the pressurization cavity and is communicated with the mask; the second one-way valve is arranged at the joint of the outlet joint and the pressurizing cavity and is fixedly connected with the pressurizing cavity, the left side end of the second one-way valve is communicated with the pressurizing valve, and the right side end of the second one-way valve is communicated with the outlet joint; the motor is arranged on the side part of the pressurizing cavity and is electrically connected with the controller; the screw rod is arranged on the motor and is in driving connection with the motor; the sliding block is arranged in the pressurizing cavity, is in sliding connection with the inner wall of the pressurizing cavity and is in threaded driving connection with the screw rod; the first one-way valves are symmetrically arranged on two sides of the sliding block and are fixedly connected with the sliding block;

the first one-way valve is opened left and closed right, and the second one-way valve is opened left and closed right;

the face mask is in communication with an outlet connection of the frequency coordination device, the face mask comprising: an exhalation tube in communication with the mask; and the expiratory valve is arranged on the expiratory tube and is electrically connected with the controller.

By adopting the technical scheme, the reciprocating sliding of the sliding block can be simply controlled through the motor, the breathing frequency can be controlled by controlling the forward and reverse switching frequency of the motor, the displacement of the sliding block can be controlled, the pressure of the gas to be introduced can be adjusted according to the lung pressure of a user, and the convenience degree of the breathing machine is improved.

Further, the first check valve includes: the two ends of the sliding cavity are communicated; the first limiting lugs are symmetrically arranged at one side end of the sliding cavity and are fixedly connected with the sliding cavity; the ball plug is arranged in the sliding cavity, is connected with the inner wall of the sliding cavity in a sliding manner, and is abutted against the first limiting convex blocks, and the diameter of the ball plug is larger than the distance between the two first limiting convex blocks which are symmetrically arranged; the second limiting lug is symmetrically arranged at one side end of the sliding cavity opposite to the first limiting lug and is fixedly connected with the sliding cavity; the supporting spring is arranged in the sliding cavity and positioned between the ball plug and the second limiting lug, one end of the supporting spring is abutted against the side part of the ball plug, and the other end of the supporting spring is abutted against the side part of the second limiting lug;

the second one-way valve is identical in structure to the first one-way valve.

A working method of a medical breathing machine with the functions of humidification and warming comprises the following steps:

step S1, monitoring human body, wherein each sensor monitors human body data in real time and sends the human body data to the controller;

step S2, temperature and humidity adjustment, wherein the controller controls the electromagnetic water inlet valve to be opened, the water pump is started, the water inlet pipe enters the water storage cavity through the electromagnetic water inlet valve, the three-way joint, the water pump and the spiral pipe, the heater is started and heats water in the water storage cavity when the water level in the water storage cavity reaches the liquid level sensor, the water pump continuously operates during heating, and the heater stops operating when the water temperature sensor monitors that the water temperature is matched with the body temperature of a human body;

step S3, adjusting the air-oxygen ratio, wherein the controller respectively adjusts the opening degrees of the first flow regulating valve and the second flow regulating valve, and the required air-oxygen mixing ratio is the opening degree ratio of the first flow regulating valve and the second flow regulating valve;

step S4, coordinating the conveying, the controller controls the motor to periodically rotate in a positive and negative alternate way, and adjusts the switching frequency of the motor to rotate in the positive and negative alternate way to be consistent with the breathing frequency, the slide block is driven to do reciprocating motion: when the slide block moves reversely, the pressure in the pressurizing cavity is reduced, the second one-way valve is locked, and the mixed gas in the air-oxygen mixing mechanism pushes away the ball plug of the first one-way valve and is supplemented into the pressurizing cavity; when the slide block moves forwards, the pressure in the pressurizing cavity is reduced, the first one-way valve is locked, the gas in the pressurizing cavity pushes the second one-way valve open, and the mixed gas enters a human body through the face mask.

Further, the step S1 includes: step S11, heartbeat monitoring, namely monitoring the artery pulsation of the user in real time by a pulse sensor to provide switching cycle data for step S4, wherein the switching frequency of the motor, namely the respiratory frequency in the step S4 is four times of the pulse pulsation frequency; step S12, monitoring the temperature, namely monitoring the body temperature of the human body in real time by a temperature sensor to provide temperature reference data for the step S2; and S13, monitoring the lung pressure, namely monitoring the lung pressure of the user in real time by a pressure sensor, and providing data for the slide block displacement in the step S4, wherein the higher the lung pressure is, the larger the required slide block displacement is, and the lower the lung pressure is, the smaller the required slide block displacement is.

To sum up, the application comprises the following beneficial technical effects:

1. the hot water in the spiral pipe is used for heating the gas, so that the uniformity of heating the gas to be introduced is improved, and the use experience of a user of the breathing machine is improved;

2. the air-oxygen mixing proportion can be conveniently adjusted by adjusting the opening degree of the first flow regulating valve and the second flow regulating valve, so that the convenience of debugging and using the breathing machine is improved;

3. the reciprocating sliding of the sliding block can be simply controlled through the motor, the breathing frequency can be controlled by controlling the forward and reverse rotation switching frequency of the motor, the sliding block displacement can be controlled, the pressure of the gas to be introduced can be adjusted according to the lung pressure of a user, and the use convenience of the breathing machine is improved;

4. through setting up waterproof ventilated membrane, the waterproof ventilated membrane of vapor accessible of hot water evaporation gets into the outlet duct in the spiral pipe, increases gaseous humidity, thereby isolated water prevents simultaneously that water from directly getting into the outlet duct and causing the direct possibility of entering user lung of water, has improved the fail safe nature of using under the circumstances of having guaranteed to carry out the humidification effect to gas.

Drawings

Fig. 1 is a schematic diagram of an overall configuration of a medical ventilator having a humidification/warming function according to an embodiment of the present application.

Fig. 2 is a partially enlarged view of a humidification/warming mechanism of a medical ventilator having a humidification/warming function according to an embodiment of the present application.

Fig. 3 is a partially enlarged view of an air-oxygen mixing mechanism of a medical ventilator having a humidifying and warming function according to an embodiment of the present application.

Fig. 4 is a partially enlarged view of a filter of a medical ventilator having a humidifying and warming function according to an embodiment of the present application.

Fig. 5 is a partially enlarged view of a connector of a medical ventilator having a humidifying and warming function according to an embodiment of the present application.

Fig. 6 is a partially enlarged view of a frequency coordination device of a medical ventilator having a humidification/warming function according to an embodiment of the present application.

Fig. 7 is a partially enlarged view of a check valve of a medical ventilator having a humidification/warming function according to an embodiment of the present application.

Fig. 8 is a partially enlarged view of a mask of a medical ventilator having a humidifying and warming function according to an embodiment of the present application.

Description of reference numerals:

1. a controller;

2. a humidifying and warming mechanism; 201. a water storage cavity; 202. a water outlet pipe; 203. a three-way joint; 204. a first connecting pipe; 205. a water pump; 206. a second connecting pipe; 207. a spiral tube; 208. a return pipe; 209. a water inlet pipe; 210. an electromagnetic water inlet valve; 211. a third connecting pipe; 212. a heater; 213. a water temperature sensor; 214. a liquid level sensor;

3. an air-oxygen mixing mechanism; 31. a filter; 311. an air inlet; 312. a first cavity; 313. an air outlet; 314. a second cavity; 315. a grid plate; 316. a desiccant; 317. a filter element; 32. a first air intake joint; 33. a first intake pipe; 34. a first flow regulating valve; 35. a second air inlet joint; 36. a second intake pipe; 37. a second flow regulating valve; 38. a mixing chamber; 39. an air outlet pipe;

4. a connecting member; 41. a waterproof breathable film;

5. a frequency coordination device; 51. a pressurizing cavity; 52. an inlet fitting; 53. a first check valve; 531. a sliding cavity; 532. a ball plug; 533. a support spring; 534. a first limit bump; 535. a second limit bump; 54. an outlet fitting; 55. a second one-way valve; 56. a motor; 57. a screw rod; 58. a slider;

6. a face mask; 61. an exhalation tube; 62. an exhalation valve.

Detailed Description

The following description of the embodiments with reference to the drawings is provided to describe the embodiments, and the embodiments of the present application, such as the shapes and configurations of the components, the mutual positions and connection relationships of the components, the functions and working principles of the components, the manufacturing processes and the operation and use methods, etc., will be further described in detail to help those skilled in the art to more fully, accurately and deeply understand the inventive concepts and technical solutions of the present invention. For convenience of description, the directions mentioned in the present application shall be those shown in the drawings.

Referring to fig. 1 to 8, a medical ventilator having a humidification and warming function includes: the device comprises a controller 1, a humidifying and warming mechanism 2, an air-oxygen mixing mechanism 3, a frequency coordination device 5, an oxygen tank, an air compressor and a mask 6;

the air-oxygen mixing mechanism 3 is respectively connected with an oxygen tank and an air compressor and is used for mixing air and oxygen and adjusting the mixing proportion;

the humidifying and warming mechanism 2 is matched with the air-oxygen mixing mechanism 3 and is used for humidifying and warming the mixed gas;

the frequency coordination device 5 is arranged on the side part of the air-oxygen mixing mechanism 3, is respectively matched with the mask 6 and the air-oxygen mixing mechanism 3, and is used for receiving a control signal of the controller 1 to adjust the respiratory frequency;

further comprising: the temperature sensor is used for monitoring real-time data of the body temperature of the user; a pressure sensor for monitoring real-time data of the user's pulmonary pressure; the pulse sensor is used for monitoring real-time data of arterial pulsation of a user; and the controller 1 is respectively connected with the temperature sensor, the pressure sensor and the pulse sensor, receives monitoring data and sends control signals to the air-oxygen mixing mechanism 3, the humidification and warming mechanism 2 and the frequency coordination device 5.

The humidification/warming mechanism 2 includes: the water storage cavity 201 is arranged at the lower part of the humidifying and warming mechanism 2; the water outlet pipe 202 is arranged at the lower part of the water storage cavity 201 and is communicated with the interior of the water storage cavity 201; the three-way joint 203 is arranged below the water storage cavity 201, and the upper end of the three-way joint 203 is communicated with the lower end of the water outlet pipe 202; a first connecting pipe 204 arranged at the side of the three-way joint 203, wherein the right end of the first connecting pipe 204 is communicated with the left end of the three-way joint 203; the water pump 205 is arranged below the water storage cavity 201, and the right side end of the water pump 205 is communicated with the left side end of the first connecting pipe 204; a second connecting pipe 206 arranged at the side of the water storage cavity 201, wherein the lower end of the second connecting pipe 206 is communicated with the upper end of the water pump 205; a spiral pipe 207 arranged above the water storage cavity 201, wherein the left side end of the spiral pipe 207 is communicated with the upper end of the second connecting pipe 206; a return pipe 208 arranged above the water storage cavity 201, one end of the return pipe is communicated with the right side end of the spiral pipe 207, and the other end of the return pipe is communicated with the upper part of the water storage cavity 201; the water inlet pipe 209 is arranged below the water storage cavity 201 and communicated with an external water source; the electromagnetic water inlet valve 210 is arranged below the water storage cavity 201, and the right side end of the electromagnetic water inlet valve is communicated with the water inlet pipe 209; a third connecting pipe 211 arranged below the water storage cavity 201, one end of the third connecting pipe 211 is communicated with the left side end of the electromagnetic water inlet valve 210, and the other end of the third connecting pipe 211 is communicated with the right side end of the three-way joint 203;

further comprising: the heater 212 is arranged at the bottom of the water storage cavity 201 and is connected with the inner wall of the controller 1; the water temperature sensor 213 is arranged in the middle of the inner wall of the water storage cavity 201 and is electrically connected with the controller 1; and the liquid level sensor 214 is arranged on the upper part of the inner wall of the water storage cavity 201 and is electrically connected with the controller 1.

The air-oxygen mixing mechanism 3 includes: a filter 31 provided at a connection of the air-oxygen mixing mechanism 3 and the air compressor, and communicating with the air compressor; a first air inlet joint 32 which is arranged at the side part of the first filter 31 and is communicated with the first filter 31; a first air inlet pipe 33 provided at a side of the first air inlet joint 32 and communicating with the first air inlet joint 32; a first flow regulating valve 34 disposed on the first intake pipe 33, communicated with the first intake pipe 33, and electrically connected to the controller 1; the second air inlet joint 35 is arranged at the joint of the oxygen tank and the air-oxygen mixing mechanism 3 and is communicated with the oxygen tank; a second air inlet pipe 36 arranged at the side of the second air inlet joint 35 and communicated with the second air inlet joint 35, and a second flow regulating valve 37 arranged on the second air inlet pipe 36 and communicated with the second air inlet pipe 36 and electrically connected with the controller 1; a mixing chamber 38, left side ends of which are communicated with the first flow rate regulation valve 34 and the second flow rate regulation valve 37, respectively; an air outlet pipe 39 arranged at the side part of the mixing valve and communicated with the right side end of the mixing valve;

the air outlet pipe 39 is positioned at the inner side of the spiral pipe 207 of the humidifying and warming mechanism 2.

The air outlet pipe 39 is made of hard heat conducting material; the spiral tube 207 is made of hard heat-conducting material.

The lower part of the air outlet pipe 39 is provided with a connecting piece 4, the connecting piece 4 is arranged at the joint of the spiral pipe 207 and the air outlet pipe 39, the upper end of the connecting piece is fixedly connected with the lower part of the air outlet pipe 39, and the lower end of the connecting piece is fixedly connected with the upper surface of the lower part of the spiral pipe 207;

the both ends intercommunication of connecting piece 4, the middle part is provided with waterproof ventilated membrane 41, waterproof ventilated membrane 41 texture is polytetrafluoroethylene.

The filter 31 includes: an air inlet 311 provided at a lower portion of the filter 31 and communicating with the air compressor; a first cavity 312 disposed at a lower portion of the filter 31 and communicating with the inlet 311; an air outlet 313 provided at an upper portion of the filter 31 and communicating with the first air inlet joint 32 of the air-oxygen mixing mechanism 3; a second chamber 314 provided at an upper portion of the filter 31 and communicating with the air outlet 313; the grid plate 315 is respectively arranged at the lower part of the first cavity 312, between the first cavity 312 and the second cavity 314 and at the upper part of the second cavity 314, and is connected with the inner wall of the filter 31 in a sliding way; a desiccant 316 disposed within the first cavity 312; a cartridge 317 disposed within the second chamber 314.

The frequency coordination device 5 includes: a pressurizing cavity 51, both ends of which are communicated; the inlet joint 52 is arranged at the left end of the pressurizing cavity 51, is fixedly connected with the pressurizing cavity 51 and is communicated with the air outlet pipe 39 of the air-oxygen mixing mechanism 3; an outlet joint 54 provided at the left side end of the pressurizing chamber 51 and communicating with the face mask 6; the second one-way valve 55 is arranged at the joint of the outlet joint 54 and the pressurizing cavity 51 and is fixedly connected with the pressurizing cavity 51, the left end of the second one-way valve is communicated with the pressurizing valve, and the right end of the second one-way valve is communicated with the outlet joint 54; the motor 56 is arranged at the side part of the pressurizing cavity 51 and is electrically connected with the controller 1; the screw rod 57 is arranged on the motor 56 and is in driving connection with the motor 56; the sliding block 58 is arranged in the pressurizing cavity 51, is connected with the inner wall of the pressurizing cavity 51 in a sliding way, and is in threaded driving connection with the screw rod 57; the first check valves 53 are symmetrically arranged on two sides of the sliding block 58 and fixedly connected with the sliding block 58;

the first check valve 53 is opened left and closed right, and the second check valve 55 is opened left and closed right;

the face mask 6 is communicated with an outlet joint 54 of the frequency coordination device 5, and the face mask 6 comprises: an exhalation tube 61 communicating with the mask 6; and the exhalation valve 62 is arranged on the exhalation tube 61 and is electrically connected with the controller 1.

The first check valve 53 includes: a sliding cavity 531, both ends of which are communicated; the first limiting lugs 534 are symmetrically arranged at one side end of the sliding cavity 531 and fixedly connected with the sliding cavity 531; the ball plug 532 is arranged in the sliding cavity 531, is connected with the inner wall of the sliding cavity 531 in a sliding mode, and is abutted against the first limiting convex blocks 534, and the diameter of the ball plug 532 is larger than the distance between the two first limiting convex blocks 534 which are symmetrically arranged; the second limiting protrusions 535 are symmetrically arranged at one side end of the sliding cavity 531 opposite to the first limiting protrusion 534, and are fixedly connected with the sliding cavity 531; a support spring 533 disposed in the sliding cavity 531 and between the ball plunger 532 and the second limit bump 535, wherein one end of the support spring abuts against the side of the ball plunger 532 and the other end abuts against the side of the second limit bump 535;

the second check valve 55 is identical in structure to the first check valve 53.

step S1, monitoring human body, wherein each sensor monitors human body data in real time and sends the human body data to the controller 1;

step S2, adjusting the temperature and humidity, wherein the controller 1 controls the electromagnetic water inlet valve 210 to be opened, the water pump 205 is started, the water inlet pipe 209 enters the water storage cavity 201 through the electromagnetic water inlet valve 210, the three-way joint 203, the water pump 205 and the spiral pipe 207 until the water level in the water storage cavity 201 reaches the liquid level sensor 214, the heater 212 is started and heats the water in the water storage cavity 201, and the water pump 205 continuously operates during heating until the water temperature sensor 213 monitors that the water temperature is matched with the body temperature of a human body, and the heater 212 stops operating;

step S3, adjusting the air-oxygen ratio, wherein the controller 1 adjusts the opening degrees of the first flow regulating valve 34 and the second flow regulating valve 37 respectively, and the required air-oxygen mixing ratio is the opening degree ratio of the first flow regulating valve 34 and the second flow regulating valve 37;

step S4, coordinating the transportation, the controller 1 controls the motor 56 to periodically rotate in forward and reverse directions alternately, and adjusts the switching frequency of the motor 56 to rotate in forward and reverse directions alternately to be consistent with the breathing frequency, the slide block 58 is driven to reciprocate: when the slide block 58 moves reversely, the pressure in the pressurizing cavity 51 is reduced, the second one-way valve 55 is locked, and the mixed gas in the air-oxygen mixing mechanism 3 pushes the ball plug 532 of the first one-way valve 53 open, so that the mixed gas is supplemented into the pressurizing cavity 51; when the slide block 58 moves forwards, the pressure in the pressurizing cavity 51 is reduced, the first one-way valve 53 is locked, the gas in the pressurizing cavity 51 pushes the second one-way valve 55 open, and the mixed gas enters the human body through the face mask 6.

The step S1 includes: step S11, heartbeat monitoring, namely, monitoring the artery pulsation of the user in real time by a pulse sensor to provide switching cycle data for step S4, wherein in the step S4, the switching frequency, namely the respiratory frequency of the motor 56 is four times of the pulse pulsation frequency; step S12, monitoring the temperature, namely monitoring the body temperature of the human body in real time by a temperature sensor to provide temperature reference data for the step S2; and S13, monitoring the lung pressure, namely monitoring the lung pressure of the user in real time by a pressure sensor, providing data for the sliding amount of the slider 58 in the step S4, wherein the higher the lung pressure is, the larger the required sliding amount of the slider 58 is, and the lower the lung pressure is, the smaller the required sliding amount of the slider 58 is.

In the embodiment of the application, the working principle of the medical breathing machine with the humidifying and warming functions and the working method thereof is as follows: the motor carries out periodic positive and negative rotation in turn, and the switching frequency of the positive and negative rotation in turn of motor is unanimous with respiratory frequency, and the slider is driven and is carried out reciprocating motion: when the slide block moves reversely, the pressure in the pressurizing cavity is reduced, the second one-way valve is locked, and the mixed gas in the air-oxygen mixing mechanism pushes away the ball plug of the first one-way valve and is supplemented into the pressurizing cavity; when the slide block moves forwards, the pressure in the pressurizing cavity is reduced, the first one-way valve is locked, the gas in the pressurizing cavity pushes the second one-way valve open, and the mixed gas enters a human body through the face mask. Thus, the breathing action matched with the breathing of the human body is realized.

In the embodiment of the application, the hot water in the spiral pipe is used for heating the gas, so that the uniformity of heating the gas to be introduced is improved, and the use experience of a user of the breathing machine is improved; the air-oxygen mixing proportion can be conveniently adjusted by adjusting the opening degree of the first flow regulating valve and the second flow regulating valve, so that the convenience of debugging and using the breathing machine is improved; the reciprocating sliding of the sliding block can be simply controlled through the motor, the breathing frequency can be controlled by controlling the forward and reverse switching frequency of the motor, the displacement of the sliding block can be controlled, the pressure of the gas to be introduced can be adjusted according to the lung pressure of a user, and the use convenience of the breathing machine is improved.

In the embodiment of the application, the vapor accessible of hot water evaporation gets into the outlet duct in the spiral pipe, increases gaseous humidity, thereby isolated water prevents simultaneously that water from directly getting into the outlet duct and causing the direct possibility of entering user's lung of water, has improved the fail safe nature of using under the circumstances of having guaranteed to carry out the humidification effect to gas.

The present invention and its embodiments have been described above in an illustrative manner, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, the technical scheme and the embodiments similar to the technical scheme are not creatively designed without departing from the spirit of the invention, and the invention shall fall into the protection scope of the invention.

Claims

1. A medical breathing machine with humidification and warming functions is characterized by comprising: the device comprises a controller (1), a humidifying and warming mechanism (2), an air-oxygen mixing mechanism (3), a frequency coordination device (5), an oxygen tank, an air compressor and a mask (6);

the air-oxygen mixing mechanism (3) is respectively connected with the oxygen tank and the air compressor and is used for mixing air and oxygen and adjusting the mixing proportion;

the humidifying and warming mechanism (2) is matched with the air-oxygen mixing mechanism (3) and is used for humidifying and warming the mixed gas;

the frequency coordination device (5) is arranged on the side part of the air-oxygen mixing mechanism (3), is respectively matched with the mask (6) and the air-oxygen mixing mechanism (3), and is used for receiving a control signal of the controller (1) to adjust the respiratory frequency;

further comprising: the temperature sensor is used for monitoring real-time data of the body temperature of the user; a pressure sensor for monitoring real-time data of the user's pulmonary pressure; the pulse sensor is used for monitoring real-time data of arterial pulsation of a user; and the controller (1) is respectively connected with the temperature sensor, the pressure sensor and the pulse sensor, receives monitoring data and sends control signals to the air-oxygen mixing mechanism (3), the humidifying and warming mechanism (2) and the frequency coordination device (5).

2. The medical ventilator with humidifying and warming functions as claimed in claim 1, wherein:

the humidification/warming mechanism (2) includes: the water storage cavity (201) is arranged at the lower part of the humidifying and warming mechanism (2); the water outlet pipe (202) is arranged at the lower part of the water storage cavity (201) and is communicated with the interior of the water storage cavity (201); the three-way joint (203) is arranged below the water storage cavity (201), and the upper end of the three-way joint (203) is communicated with the lower end of the water outlet pipe (202); a first connecting pipe (204) arranged at the side part of the three-way joint (203), wherein the right side end of the first connecting pipe (204) is communicated with the left side end of the three-way joint (203); the water pump (205) is arranged below the water storage cavity (201), and the right side end of the water pump (205) is communicated with the left side end of the first connecting pipe (204); the second connecting pipe (206) is arranged on the side of the water storage cavity (201), and the lower end of the second connecting pipe (206) is communicated with the upper end of the water pump (205); the spiral pipe (207) is arranged above the water storage cavity (201), and the left side end of the spiral pipe (207) is communicated with the upper end of the second connecting pipe (206); the return pipe (208) is arranged above the water storage cavity (201), one end of the return pipe is communicated with the right side end of the spiral pipe (207), and the other end of the return pipe is communicated with the upper part of the water storage cavity (201); the water inlet pipe (209) is arranged below the water storage cavity (201) and is communicated with an external water source; the electromagnetic water inlet valve (210) is arranged below the water storage cavity (201), and the right side end of the electromagnetic water inlet valve is communicated with the water inlet pipe (209); the third connecting pipe (211) is arranged below the water storage cavity (201), one end of the third connecting pipe is communicated with the left side end of the electromagnetic water inlet valve (210), and the other end of the third connecting pipe is communicated with the right side end of the three-way joint (203);

further comprising: the heater (212) is arranged at the bottom of the water storage cavity (201) and is connected with the inner wall of the controller (1); the water temperature sensor (213) is arranged in the middle of the inner wall of the water storage cavity (201) and is electrically connected with the controller (1); and the liquid level sensor (214) is arranged on the upper part of the inner wall of the water storage cavity (201) and is electrically connected with the controller (1).

3. The medical ventilator with humidifying and warming functions as claimed in claim 2, characterized in that:

the air-oxygen mixing mechanism (3) comprises: the filter (31) is arranged at the joint of the air-oxygen mixing mechanism (3) and the air compressor and is communicated with the air compressor; a first air inlet joint (32) which is arranged at the side part of the first filter (31) and is communicated with the first filter (31); a first air inlet pipe (33) which is arranged at the side part of the first air inlet joint (32) and is communicated with the first air inlet joint (32); the first flow regulating valve (34) is arranged on the first air inlet pipe (33), is communicated with the first air inlet pipe (33), and is electrically connected with the controller (1); the second air inlet joint (35) is arranged at the joint of the oxygen tank and the air-oxygen mixing mechanism (3) and is communicated with the oxygen tank; the second air inlet pipe (36) is arranged at the side part of the second air inlet joint (35) and communicated with the second air inlet joint (35), and the second flow regulating valve (37) is arranged on the second air inlet pipe (36), communicated with the second air inlet pipe (36) and electrically connected with the controller (1); a mixing chamber (38) having left-side ends respectively communicating with the first flow rate regulating valve (34) and the second flow rate regulating valve (37); the air outlet pipe (39) is arranged on the side part of the mixing valve and is communicated with the right side end of the mixing valve;

the air outlet pipe (39) is positioned at the inner side of the spiral pipe (207) of the humidifying and warming mechanism (2).

4. The medical ventilator with humidifying and warming functions as claimed in claim 3, wherein:

the texture of the air outlet pipe (39) is hard heat conduction material; the texture of the spiral tube (207) is hard heat conduction material.

5. The medical ventilator with humidifying and warming functions as claimed in claim 4, wherein:

the lower part of the air outlet pipe (39) is provided with a connecting piece (4), the connecting piece (4) is arranged at the joint of the spiral pipe (207) and the air outlet pipe (39), the upper end of the connecting piece is fixedly connected with the lower part of the air outlet pipe (39), and the lower end of the connecting piece is fixedly connected with the upper surface of the lower part of the spiral pipe (207);

the both ends intercommunication of connecting piece (4), the middle part is provided with waterproof ventilated membrane (41), waterproof ventilated membrane (41) texture is polytetrafluoroethylene.

6. The medical ventilator with humidifying and warming functions as claimed in claim 4, wherein:

the filter (31) comprises: an air inlet (311) provided at a lower portion of the filter (31) and communicating with the air compressor; a first chamber (312) disposed at a lower portion of the filter (31) and communicating with the inlet port (311); the air outlet (313) is arranged at the upper part of the filter (31) and is communicated with the first air inlet joint (32) of the air-oxygen mixing mechanism (3); a second chamber (314) disposed at an upper portion of the filter (31) and communicating with the air outlet (313); the grid plate (315) is respectively arranged at the lower part of the first cavity (312), between the first cavity (312) and the second cavity (314) and at the upper part of the second cavity (314) and is in sliding connection with the inner wall of the filter (31); a desiccant (316) disposed within the first cavity (312); a cartridge (317) disposed within the second cavity (314).

7. The medical ventilator with humidifying and warming functions as claimed in claim 4, wherein:

the frequency coordination device (5) comprises: a pressurizing cavity (51) with two ends communicated; the inlet joint (52) is arranged at the left end of the pressurizing cavity (51), is fixedly connected with the pressurizing cavity (51), and is communicated with the air outlet pipe (39) of the air-oxygen mixing mechanism (3); an outlet joint (54) which is arranged at the left end of the pressurization cavity (51) and is communicated with the face mask (6); the second one-way valve (55) is arranged at the joint of the outlet joint (54) and the pressurizing cavity (51) and is fixedly connected with the pressurizing cavity (51), the left side end of the second one-way valve is communicated with the pressurizing valve, and the right side end of the second one-way valve is communicated with the outlet joint (54); the motor (56) is arranged on the side part of the pressurization cavity (51) and is electrically connected with the controller (1); the screw rod (57) is arranged on the motor (56) and is in driving connection with the motor (56); the sliding block (58) is arranged in the pressurizing cavity (51), is in sliding connection with the inner wall of the pressurizing cavity (51), and is in threaded driving connection with the screw rod (57); the first one-way valves (53) are symmetrically arranged on two sides of the sliding block (58) and are fixedly connected with the sliding block (58);

the first one-way valve (53) is opened leftwards and closed rightwards, and the second one-way valve (55) is opened leftwards and closed rightwards;

the face mask (6) is in communication with an outlet connection (54) of the frequency coordination device (5), the face mask (6) comprising: an exhalation tube (61) communicating with the mask (6); the exhalation valve (62) is arranged on the exhalation tube (61) and is electrically connected with the controller (1).

8. The medical ventilator with humidifying and warming functions as claimed in claim 7, wherein:

the first check valve (53) includes: a sliding cavity (531) with two ends communicated; the first limiting lugs (534) are symmetrically arranged at one side end of the sliding cavity (531) and are fixedly connected with the sliding cavity (531); the ball plug (532) is arranged in the sliding cavity (531), is connected with the inner wall of the sliding cavity (531) in a sliding mode, and is abutted against the first limiting convex blocks (534), and the diameter of the ball plug (532) is larger than the distance between the two first limiting convex blocks (534) which are symmetrically arranged; the second limiting lug (535) is symmetrically arranged at one side end of the sliding cavity (531) opposite to the first limiting lug (534) and is fixedly connected with the sliding cavity (531); the supporting spring (533) is arranged in the sliding cavity (531), is positioned between the ball plug (532) and the second limiting lug (535), and has one end abutted against the side part of the ball plug (532) and the other end abutted against the side part of the second limiting lug (535);

the second check valve (55) is identical in structure to the first check valve (53).

9. A working method of a medical breathing machine with the functions of humidification and warming is characterized by comprising the following steps:

step S1, monitoring human body, wherein each sensor monitors human body data in real time and sends the human body data to the controller (1);

step S2, temperature and humidity adjustment is carried out, the controller (1) controls the electromagnetic water inlet valve (210) to be opened, the water pump (205) is started, the water inlet pipe (209) enters the water storage cavity (201) through the electromagnetic water inlet valve (210), the three-way joint (203), the water pump (205) and the spiral pipe (207), the heater (212) is started and heats water in the water storage cavity (201) when the water level in the water storage cavity (201) reaches the liquid level sensor (214), the water pump (205) continuously operates during heating, and the heater (212) stops operating until the water temperature sensor (213) monitors that the water temperature is matched with the body temperature of a human body;

step S3, adjusting the air-oxygen ratio, wherein the controller (1) respectively adjusts the opening degrees of the first flow regulating valve (34) and the second flow regulating valve (37), and the required air-oxygen mixing ratio is the opening degree ratio of the first flow regulating valve (34) and the second flow regulating valve (37);

step S4, coordinating the conveying, the controller (1) controls the motor (56) to periodically rotate in a positive and negative alternate mode, the switching frequency of the motor (56) in the positive and negative alternate rotation is adjusted to be consistent with the breathing frequency, and the sliding block (58) is driven to reciprocate: when the sliding block (58) moves reversely, the pressure in the pressurizing cavity (51) is reduced, the second one-way valve (55) is locked, and the mixed gas in the air-oxygen mixing mechanism (3) pushes away the ball plug (532) of the first one-way valve (53) to supplement the mixed gas into the pressurizing cavity (51); when the sliding block (58) moves forwards, the pressure in the pressurizing cavity (51) is reduced, the first one-way valve (53) is locked, the gas in the pressurizing cavity (51) pushes the second one-way valve (55), and the mixed gas enters a human body through the face mask (6).

10. The operating method of the medical ventilator with the humidifying and warming functions as claimed in claim 9, wherein:

the step S1 includes: step S11, heartbeat monitoring, namely monitoring the artery pulsation of the user in real time by a pulse sensor to provide switching cycle data for step S4, wherein the switching frequency of the motor (56), namely the respiratory frequency in the step S4 is four times of the pulse pulsation frequency; step S12, monitoring the temperature, namely monitoring the body temperature of the human body in real time by a temperature sensor to provide temperature reference data for the step S2; and S13, monitoring the lung pressure, namely monitoring the lung pressure of the user in real time by a pressure sensor, providing data for the sliding amount of the sliding block (58) in the step S4, wherein the higher the lung pressure is, the larger the required sliding amount of the sliding block (58) is, and the lower the lung pressure is, the smaller the required sliding amount of the sliding block (58) is.