A warming humidification breathing rewarming host

Abstract

The utility model discloses a warming humidification breath rewarms host computer, including: the shell is provided with oxygen supply air inlet, breath heating interface and power interface, and the shell has power management unit, main control unit, breath ventilation module, internal breath heating module, adapter assembly and breath atomization module, breath ventilation module, adapter assembly and breath atomization module same side from below to top arrange in proper order, and power management unit, main control unit and internal breath heating module same other side arrange behind, and the shell is equipped with external breath heating module and breath mask, and the external breath heating module end sets up temperature sensor, oxygen supply air inlet communicates with breath ventilation module import, and breath ventilation module export communicates with internal breath heating module import, and internal breath heating module export communicates with adapter assembly first import, and breath atomization module export communicates with adapter assembly second import, and adapter assembly export communicates with external breath heating module import through breath heating interface, and external breath heating module export communicates with breath mask.

Description

Technical Field

[0001] This utility model relates to the field of biomedical engineering technology, and in particular to a heated and humidified respiration rewarming host. Background Technology

[0002] The inventor previously filed an invention patent application (CN2022101051556) entitled "An Assisted Respiratory Rewarming Device," for rewarming hypothermic patients. This prior art patent uses a humidifier and a heater to heat and humidify the breathing gas entering the breathing mask. However, the existing patent's design is relatively crude. Based on this, the inventor has further optimized the rewarming device, creating a more integrated and compact heating and humidifying rewarming structure. Furthermore, while the existing patent only supports DC power, the inventor has further optimized this design, creating a power supply that can be powered by DC, AC, or batteries, and managing these power sources. Utility Model Content

[0003] This utility model addresses the problems and shortcomings of existing technologies by providing a heated and humidified respiration rewarming host.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This utility model provides a heated and humidified respiratory rewarming host, characterized in that it includes a shell, on which an oxygen supply inlet and a breathing heating interface are provided, and a power interface is embedded in the shell. Inside the shell, a power management unit, a main control unit, a breathing ventilation module, an internal breathing heating module, a converter assembly, and a breathing nebulization module are fixed. The breathing ventilation module, the converter assembly, and the breathing nebulization module are arranged sequentially from bottom to top on the same side, with the breathing ventilation module located near the oxygen supply inlet and the breathing nebulization module located near the breathing heating interface. The power management unit, the main control unit, and the internal breathing heating module are arranged front to back on the other side, with the internal breathing heating module and the breathing nebulization module located near the converter assembly. An external breathing heating module and a breathing mask are provided outside the shell, and a temperature sensor is provided at the end of the external breathing heating module.

[0006] The power interface and power management unit are electrically connected to power the host. The oxygen supply inlet is connected to the inlet of the breathing ventilation module. The outlet of the breathing ventilation module is connected to the inlet of the internal breathing heating module. The outlet of the internal breathing heating module is connected to the first inlet of the adapter component. The outlet of the breathing nebulization module is connected to the second inlet of the adapter component. The outlet of the adapter component is connected to the inlet of the external breathing heating module through the breathing heating interface. The outlet of the external breathing heating module is connected to the breathing mask.

[0007] The positive and progressive effects of this utility model are as follows:

[0008] This utility model integrates a power management unit, a main control unit, a breathing ventilation module, an internal breathing heating module, and a breathing nebulization module within the main unit casing. The compact layout of these modules results in a small overall structural volume.

[0009] This utility model realizes power supply methods of DC power supply, AC power supply and battery power supply, and manages DC power supply, AC power supply and battery power supply.

[0010] This utility model designs a heated and humidified breathing rewarming channel. The heated channel consists of: oxygen supply inlet – breathing ventilation module – internal breathing heating module – adapter component – ​​breathing heating interface – external breathing heating module – breathing mask. The humidified channel consists of: breathing nebulization module – adapter component – ​​breathing heating interface – external breathing heating module – breathing mask. The entire heated and humidified breathing rewarming channel is designed to be more reasonable and conducive to human breathing, thereby realizing the breathing rewarming function.

[0011] This invention can not only achieve passive respiration rewarming of the human body, but also active respiration rewarming of the human body. Attached Figure Description

[0012] Figure 1-2 This is a schematic diagram of the overall structure of the heating and humidifying respiration rewarming host, which is a preferred embodiment of the present invention.

[0013] Figure 3 This is a control principle diagram of the heating and humidifying respiration rewarming host, which is a preferred embodiment of the present invention.

[0014] Figure 4-5 This is a perspective view (two side angles) of the heating and humidifying respiration rewarming host of the present invention, which is a preferred embodiment of the present invention.

[0015] Figure 6 This is a perspective view (rear angle) of the heating and humidifying respiration rewarming host, which is a preferred embodiment of the present invention.

[0016] Figure 7-11 This is a schematic diagram of the internal structure of the heating and humidifying respiration rewarming host according to a preferred embodiment of the present invention.

[0017] Figure 12-13 This is a schematic diagram of the structure of the respiratory ventilation component according to a preferred embodiment of the present invention.

[0018] Figure 14 This is a schematic diagram of the atomizing component of a preferred embodiment of the present invention.

[0019] Figure 15 This is a circuit diagram of the AC / DC path management circuit of a preferred embodiment of the present invention.

[0020] Figure 16 The circuit diagram is of a preferred embodiment of the one-button switch circuit of this utility model.

[0021] Figure 17 The circuit diagram is a preferred embodiment of the voltage conversion circuit of this utility model.

[0022] Figure 18 The circuit diagram of the main control unit is shown in the preferred embodiment of this utility model.

[0023] Figure 19 The circuit diagram of the fan drive circuit is a preferred embodiment of the present invention.

[0024] Figure 20 The circuit diagram is a preferred embodiment of the atomization drive circuit of this utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] For ease of description, only the parts relevant to this utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are merely for the convenience of describing the technical solution and do not have a specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Terms indicating positional relationships, such as "middle," "horizontal," "vertical," "longitudinal," "front," "rear," "left," "right," "inner," and "outer," are based on the positional relationships shown in the accompanying drawings and do not imply that the components referred to must be presented in the described positional relationships; they do not constitute a limitation on the technical solution of this utility model.

[0027] like Figure 1-20 As shown, this embodiment provides a heated humidified breathing rewarming host, including a housing 1. The housing 1 includes a front shell 101 and a rear cover 102, which are fixed together and sealed with a sealing ring. A battery compartment 2 extending inwards is provided on the rear cover 102. Shock-absorbing cotton 3 is installed inside the battery compartment 2, and a battery 4 is placed inside the shock-absorbing cotton 3. The battery compartment 2 is covered with a battery cover 5. To improve the structural mechanical strength and electromagnetic compatibility of the heated humidified breathing rewarming host, the housing 1 is made of aluminum alloy. The battery cover 5 can be opened for easy replacement of the internal battery.

[0028] An oxygen inlet 6 is provided on the back of the outer casing 1, and a breathing heating interface 7 is provided on one side of the outer casing 1.

[0029] The other side of the outer casing 1 is equipped with an AC power interface 8, a DC power interface 9, and a data transmission interface 10. The AC power interface 8 is a socket-type filter. A triangular socket plug 11 is fixed to the other side of the outer casing 1. The triangular socket plug 11 is used to house the socket-type filter 8. When the socket-type filter 8 is not in use, the triangular socket plug 11 is inserted to achieve dust and water protection. When the socket-type filter 8 is in use, the triangular socket plug 11 is removed to connect to AC power. The DC power interface 9 is a DC power socket. A DC power waterproof plug 12 is fixed to the other side of the outer casing 1. The DC power waterproof plug 12 is used to house the DC power socket 9. When the DC power socket 9 is not in use, the DC power waterproof plug 12 is inserted to achieve dust and water protection. When the DC power socket 9 is in use, the DC power waterproof plug 12 is removed to connect to DC power. The data transmission interface 10 is a Type-C interface.

[0030] The front of the outer casing 1 is fitted with a control panel 13 and a switch 14. A protective film is affixed to the surface of the control panel 13. The switch 14 is an IP67 waterproof switch, which can start the main unit with one button. The control panel 13 is divided into a parameter display area, a working status display area, a power display area, and an operation area. The parameter display area allows for setting the reheat temperature and displaying the real-time temperature. The temperature adjustment step is 0.1℃, and the time adjustment step is 1 minute. The working status display area displays the power supply status and heating status of the device. The power display area displays the remaining battery power. When the remaining battery power is too low, the power display color changes from green to red and an audible alarm is triggered. The operation area allows for setting the temperature and time, starting and resetting the device, and enabling the ventilation function.

[0031] Corner guards 15 are fixed at the four corners of the front and back of the outer shell 1 to improve impact resistance. A retractable handle 16 is fixed at the top of the outer shell 1 for easy gripping.

[0032] A switching power supply mounting bracket 17 is fixed inside the housing 1, and a switching power supply 18 (a commercially available electronic device) is fixed inside the mounting bracket 17. The switching power supply 18 is electrically connected to the AC power interface 8. When the AC power interface 8 (i.e., the socket-type filter) is connected to AC220V, the socket-type filter 8 filters the AC220V and transmits it to the switching power supply 18, which then converts the filtered voltage to DC24V.

[0033] The outer casing 1 integrates a power management unit 19, a main control unit 20, a breathing ventilation module 21, an internal breathing heating module 22, an adapter component 26, and a breathing nebulizer module 23. The breathing ventilation module 21, adapter component 26, and breathing nebulizer module 23 are arranged sequentially from bottom to top on the same side, with the breathing ventilation module 21 positioned near the oxygen supply inlet 6 and the breathing nebulizer module 23 positioned near the breathing heating interface 7. The breathing nebulizer module 23 is positioned on top, and the breathing ventilation module 21 is positioned on the bottom. The power management unit 19, main control unit 20, and internal breathing heating module 22 are arranged front to back on the other side, sequentially from back to front. The internal breathing heating module 22 and breathing nebulizer module 23 are positioned near the adapter component 26. An external breathing heating module 24 and a breathing mask 25 are located outside the outer casing 1. A temperature sensor 27 is located at the end of the external breathing heating module 24 (near the breathing mask).

[0034] In this embodiment, the power management unit 19 includes an AC / DC path management circuit, a one-button switch circuit, a power management module, and a voltage conversion circuit. The AC power interface 8, the switching power supply 18, the AC / DC path management circuit, and the voltage conversion circuit are sequentially electrically connected to form an AC power supply circuit. The DC power interface, the AC / DC path management circuit, and the voltage conversion circuit are sequentially electrically connected to form a DC power supply circuit. The one-button switch circuit and the main control unit 20 are electrically connected. The battery, the one-button switch circuit, and the voltage conversion circuit are sequentially electrically connected to form a battery power supply circuit. Both the AC / DC path management circuit and the battery 4 are electrically connected to the power management module. The power management module uses an IP2366 chip.

[0035] When AC power is supplied by both battery 4 and AC power interface 8, or when DC power is supplied by both battery 4, AC power, and DC power interface 9, the switching power supply 18 converts the AC power into a first DC power. The AC / DC path management circuit selects which first DC power VIN to transmit to the voltage conversion circuit, which then converts the first DC power VIN into the target DC power. In this embodiment, AC power has the highest priority over battery power and DC power, and AC power is used to power the host computer.

[0036] When both battery power and DC power interface are connected simultaneously to provide DC power, the AC / DC path management circuit selects which DC power VIN to transmit to the voltage conversion circuit. The voltage conversion circuit then converts the DC power VIN to the target DC power. In this embodiment, when both battery power and DC power are available while AC power is not supplied, DC power has a higher priority than battery power, and the DC power supply method is used to power the host machine.

[0037] The one-button switch circuit is used to supply the power supply voltage VOUT from the battery 4 to the voltage conversion circuit after receiving the power-on signal from the switch 14. The voltage conversion circuit is used to convert the power supply voltage VOUT into the target DC power.

[0038] When powered solely by battery, the voltage conversion circuit is used to convert the supply voltage VOUT into the target DC voltage.

[0039] The power management module is used to collect the first DC voltage VIN or DC voltage VIN output by the AC / DC path management circuit and the battery voltage. When the first DC voltage VIN or DC voltage VIN is greater than a certain set threshold of the battery voltage, it controls the first DC voltage VIN or DC voltage VIN to charge the battery.

[0040] In this embodiment, at the initial power-on time, battery 4 powers on the host. After the initial power-on time, if only battery power is available, the battery is used to power the host; if both battery power and AC / DC power are available, the AC / DC power is used to power the host, with AC power taking precedence over DC power.

[0041] Among them, see Figure 15The AC / DC path management circuit includes: an AC terminal block ACIN connected to a switching power supply 18; pins 1 and 2 of the AC terminal block ACIN are grounded through parallel capacitors CA3 and CA4, and pins 3 and 4 are grounded; pins 1 and 2 of the AC terminal block ACIN are electrically connected to pins 1 and 3 of a Schottky diode, and are also electrically connected to the base of a transistor QA8 through resistor RA13; and a DC terminal block DCIN connected to a DC power supply interface; pins 1 and 2 of the DC terminal block DCIN are grounded through parallel capacitors CA5 and CA6, and pins 3 and 4 are grounded; pins 1 and 2 of the DC terminal block DCIN are connected through resistor RA13. 11 is electrically connected to the collector of transistor QA8 and the drain of field-effect transistor QA3. The base of transistor QA8 is grounded through resistor RA12, the collector is electrically connected to the base of transistor QA7, and the emitter is grounded. The base of transistor QA7 is grounded through resistor RA10, and the collector is connected through resistor RA9 to the gate of field-effect transistor QA3, one end of resistor RA8, and the gate and emitter of field-effect transistor QA4, respectively, and grounded. The source of field-effect transistor QA3 and the source of field-effect transistor QA4 are both connected to the other end of resistor RA8. The drain of field-effect transistor QA4 and pin 2 of Schottky diode are both electrically connected to the voltage conversion circuit, outputting the first DC voltage VIN or DC voltage VIN.

[0042] In the AC / DC path management circuit, if only AC power interface 8 is connected to AC power, the corresponding first DC power VIN is output; if only DC power interface 9 is connected to DC power, the corresponding DC power VIN is output; if both AC power interface 8 and DC power interface 9 are connected to DC power, the corresponding first DC power VIN is output. Therefore, in the AC / DC path management circuit, AC power supply takes precedence over DC power supply.

[0043] See Figure 16The one-button switch circuit includes: the source of field-effect transistor QA1 is electrically connected to battery 4, and is also electrically connected to the collector of transistor QA2 through resistors RA5 and RA4; the drain of field-effect transistor QA1 is electrically connected to the voltage conversion circuit to output the supply voltage VOUT to the voltage conversion circuit, and is also electrically connected to one end of resistor RA2; the gate of field-effect transistor QA1 is electrically connected to the cathode of diode DA1 through resistor RA6, and is also electrically connected to the collector of transistor QA2 through resistor RA4; the cathode of diode DA1 is connected to switch 14 to receive the switch 1. The KEY signal sent by diode DA1 powers the main control unit 20 through resistor RA7, converts the KEY signal into a POWER signal and transmits it to the main control unit 20, and is also electrically connected to pin 2 of TVS transistor TVS1. Pin 1 of TVS transistor TVS1 and the emitter of transistor QA2 are grounded. The base of transistor QA2 is grounded through capacitor CA2 and resistor RA3, and is also electrically connected to the other end of resistor RA2. It is also electrically connected to the main control unit through resistor RA1 to receive the ONEKRY signal sent by the main control unit.

[0044] When switch 14 is pressed, the one-button switch circuit receives the KEY signal and converts it into a POWER signal through diode DA1, which is then transmitted to the main control unit 20. The main control unit 20 then knows that the power is on and outputs the ONEKRY signal to the one-button switch circuit. In the one-button switch circuit, transistors QA2 and QA1 are turned on, and the power supply voltage VOUT is output using battery 4.

[0045] See Figure 17 The voltage conversion circuit includes: the anode of diode DD6 is connected to the drain of field-effect transistor QA4 and pin 2 of Schottky diode in the AC / DC path management circuit to receive DC voltage VIN; the cathode is electrically connected to pin 1 of DC-DC power module UD1 through inductors LDM1 and LDM2; the anode of diode DD5 is connected to a one-button switch circuit to receive supply voltage VOUT; the cathode is electrically connected to inductor LDM1; electrolytic capacitors CD1 and CD2 connected in parallel between inductors LDM1 and LDM2 are grounded; pin 1 of DC-DC power module UD1 is grounded through capacitor CD3 and pin 2 is grounded; pin 3 of DC-DC power module UD1 is grounded through capacitor CD4; and DC 5V is output through inductor DR1 to power electronic devices other than the main control unit.

[0046] The voltage conversion circuit also includes: the IN and EN pins of the voltage regulator chip UD4 are connected to DC5V, the GND pin is grounded, the EN pin of the voltage regulator chip UD4 is grounded through capacitor CD15, the BP pin is grounded through capacitor CD17, the OUT pin outputs 3.3V to power the main control unit 20, and is also grounded through capacitor CD16 and electrolytic capacitor CD18 respectively.

[0047] In this embodiment, the main control unit uses an MCU chip, such as model GD32F103C8T6 (see...). Figure 18 ).

[0048] In this embodiment, the breathing ventilation module 21 includes a fan PCB board 211 and a breathing ventilation component, and the fan PCB board 211 is provided with a fan drive circuit.

[0049] The breathing ventilation assembly includes a fan base 212 fixed inside the housing 1, a fan mounting sleeve 213 fixed on the fan base 212, a fan 214 (such as a turbine fan) fixed on the fan mounting sleeve 213, the inlet of the fan 214 is connected to one end of the air inlet pipe 216 through the air inlet rubber part 215, the other end of the air inlet pipe 216 is connected to the oxygen supply inlet 6, the outlet of the fan 214 is connected to one end of the air outlet pipe 217, the other end of the air outlet pipe 217 is connected to the inlet of the internal breathing heating module 22 through the air outlet connecting pipe 218, a one-way valve 219 is provided in the air outlet connecting pipe 218 near the air outlet pipe 217, the air outlet connecting pipe 218 is also connected to the air inlet pipe 216, a sampling pipe 2110 is connected to the air outlet connecting pipe 218, and a pressure sensor is provided in the sampling pipe 2110.

[0050] The fan drive circuit includes: the base of transistor Q3 is electrically connected to the main control unit through resistor R21 and grounded through resistor R22; the emitter of transistor Q3 is grounded; the collector of transistor Q3 is electrically connected to the gate of field-effect transistor Q4 through resistor R20; the gate of field-effect transistor Q4 is electrically connected to the source of field-effect transistor Q4 through resistor R19; the source of field-effect transistor Q4 is connected to DC5V; the drain of field-effect transistor Q4 is electrically connected to pin 2 of the fan interface through inductor DR4; the two ends of inductor DR4 are grounded through capacitors C12 and C13 respectively; pin 1 of the fan interface is grounded and electrically connected to the main control unit; pin 3 of the fan interface is electrically connected to the main control unit through resistor R18, grounded through resistor R18 and capacitor C14, and electrically connected to the main control unit through resistor R17; and the fan interface is connected to fan 214.

[0051] During passive breathing, the main control unit 20 controls the fan drive circuit to start the fan 214 to generate negative pressure in the pipeline. Breathing gas is drawn in through the air inlet pipe 216 and the oxygen supply inlet 6, and sent to the internal breathing heating module 22 for heating through the air outlet pipe 217 and the air outlet connection pipe 218. The main control unit 20 controls the fan drive circuit to adjust the power of the fan 214 according to the pressure value detected by the pressure sensor, so that the pressure value reaches the target pressure value, that is, the power of the fan 214 reaches the target power.

[0052] When the human body is breathing spontaneously, the main control unit 20 is used to control the fan drive circuit to not drive the fan 214 to start. The human body breathes spontaneously and inhales external gas through the air inlet pipe 216 and the oxygen supply inlet 6, and sends it directly to the internal breathing heating module 22 for heating through the air outlet connection pipe 218.

[0053] In this embodiment, the internal breathing heating module 22 includes two heating tubes arranged side by side, with adjacent heating tubes connected together. The inlet of the first heating tube is connected to the air outlet connection pipe 218, and the outlet of the last heating tube is connected to the first inlet of the adapter component 26 through the hot air connection pipe 222. Each heating tube is equipped with a PTC heating element, and the inner wall of each heating tube has a U-shaped corrugated structure. The outer layer of the two side by side heating tubes is surrounded by a heating protective sleeve.

[0054] In this embodiment, the breathing atomization module 23 includes an atomization PCB board 230 and an atomization component, and the atomization PCB board 230 is provided with an atomization driving circuit.

[0055] The atomizing assembly includes a liquid storage cup 231 fixed inside the outer casing 1. A liquid storage cup cap 232 covers the top of the liquid storage cup 231, and an inclined cavity 233 is provided at the bottom of the liquid storage cup 231. An atomizing pump is fixed inside the inclined cavity 233, and an atomizing interface 234 is sealed to the outlet of the inclined cavity 233 by a silicone ring. The atomizing interface 234 is connected to the second inlet of the adapter assembly 26. The liquid storage cup 231 is located on the side for easy removal and water addition.

[0056] The atomizing drive circuit includes: the base of transistor Q8 is electrically connected to the main control unit through resistor R43 and grounded through resistor R44; the emitter of transistor Q8 is grounded; the collector of transistor Q8 is electrically connected to the gate of field-effect transistor Q9 through resistor R45; the gate of field-effect transistor Q9 is electrically connected to the source of field-effect transistor Q9 through resistor R46; the source of field-effect transistor Q9 is connected to DC5V; the drain of field-effect transistor Q9 is electrically connected to pin 2 of humidification interface JSQ and grounded through capacitor C28; pin 1 of humidification interface JSQ is grounded; and humidification interface JSQ is connected to the atomizing pump.

[0057] The main control unit 20 is used to control the atomization drive circuit to drive the atomization pump to start working. The atomization pump uses the liquid in the liquid storage cup 231 to generate atomized liquid, which flows into the adapter component 26 through the atomization interface 234.

[0058] In this embodiment, the adapter component 26 includes a Y-shaped adapter pipe 261. An adapter cover 262 is provided on the notch of the Y-shaped adapter pipe 261. The first inlet of the Y-shaped adapter pipe 261 is connected to the outlet (i.e., hot air connection pipe 222) of the internal breathing heating module 22, the second inlet is connected to the outlet (i.e., atomization interface 234) of the breathing atomization module 23, and the outlet is connected to the inlet of the external breathing heating module 24 through the breathing heating interface 7.

[0059] In this embodiment, the external breathing heating module 24 includes an external breathing heating tube 241, which is provided with a heating resistance wire. The end of the external breathing heating tube 241 is connected to a mask connection connector 242, and a breathing valve 243 is provided on the mask connection connector 242.

[0060] In this embodiment, the breathing mask 25 is a disposable breathing mask.

[0061] The working principle of this embodiment is as follows: When the human body is passively breathing, the main control unit 20 is used to control the fan drive circuit to drive the fan 214 to start and generate negative pressure in the pipeline. Breathing gas is drawn in through the air inlet pipe 216 and the oxygen supply inlet 6, and sent to the internal breathing heating module 22 for heating through the air outlet pipe 217 and the air outlet connecting pipe 218. After heating, the breathing gas enters the transfer component 26.

[0062] When the human body breathes spontaneously, the main control unit 20 is used to control the fan drive circuit to not drive the fan 214 to start. The human body breathes spontaneously by inhaling external gas through the air inlet pipe 216 and the oxygen supply inlet 6, and directly sends it to the internal breathing heating module 22 for heating through the air outlet connection pipe 218. After heating, the breathing gas enters the transfer component 26.

[0063] Meanwhile, the main control unit 20 is used to control the atomization drive circuit to drive the atomization pump to start. The atomization pump uses the liquid in the liquid storage cup 231 to generate atomized liquid. The atomized liquid flows into the adapter component 26 through the atomization interface 234. In the adapter component 26, the atomized liquid and the heated breathing gas merge and humidify.

[0064] The main control unit 20 is used to control the heating resistance wire to reheat and keep the humidified breathing gas entering the external breathing heating tube 241 warm, and then send it to the breathing mask 25.

[0065] The main control unit 20 receives the temperature detected by the end temperature sensor 27, and controls the internal breathing heating module 22 and the external breathing heating module 24 to heat until the temperature reaches the set temperature if the temperature has not reached the set temperature.

[0066] This embodiment features a dual heating structure, with an internal and external heating module 22 heating the respiratory gas. However, the gas outlet of the internal heating module 22 is some distance from the human breathing opening, preventing the heated gas from directly entering the respiratory tract. Additionally, some heat loss is inevitable in the external breathing tubing, causing a drop in gas temperature. Therefore, an external heating module 24 is provided for heat preservation and further heating. Furthermore, a temperature sensor 27 is installed at the end of the external heating tubing to monitor and provide real-time feedback on the gas temperature for closed-loop regulation and control.

[0067] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A warming and humidifying respiratory rewarming console, characterized in that, The device includes an outer shell, on which an oxygen supply inlet and a breathing heating interface are provided. A power interface is embedded in the outer shell. Inside the outer shell are a power management unit, a main control unit, a breathing ventilation module, an internal breathing heating module, a converter assembly, and a breathing nebulizer module. The breathing ventilation module, converter assembly, and breathing nebulizer module are arranged sequentially from bottom to top on the same side, with the breathing ventilation module located near the oxygen supply inlet and the breathing nebulizer module located near the breathing heating interface. The power management unit, main control unit, and internal breathing heating module are arranged front to back on the other side, with the internal breathing heating module and breathing nebulizer module located near the converter assembly. An external breathing heating module and a breathing mask are provided outside the outer shell, and a temperature sensor is provided at the end of the external breathing heating module. The power interface and power management unit are electrically connected to power the host. The oxygen supply inlet is connected to the inlet of the breathing ventilation module. The outlet of the breathing ventilation module is connected to the inlet of the internal breathing heating module. The outlet of the internal breathing heating module is connected to the first inlet of the adapter component. The outlet of the breathing nebulization module is connected to the second inlet of the adapter component. The outlet of the adapter component is connected to the inlet of the external breathing heating module through the breathing heating interface. The outlet of the external breathing heating module is connected to the breathing mask.

2. The warming and humidified respiratory rewarming host machine of claim 1, wherein, The power interface includes an AC power interface and a DC power interface. The power management unit includes an AC / DC path management circuit, a one-button switch circuit, a power management module, and a voltage conversion circuit. The housing also contains a switching power supply and a battery. The AC power interface, switching power supply, AC / DC path management circuit, and voltage conversion circuit are sequentially electrically connected to form an AC power supply circuit. The DC power interface, AC / DC path management circuit, and voltage conversion circuit are sequentially electrically connected to form a DC power supply circuit. The one-button switch circuit is electrically connected to the main control unit. The battery, one-button switch circuit, and voltage conversion circuit are sequentially electrically connected to form a battery power supply circuit. Both the AC / DC path management circuit and the battery are electrically connected to the power management module.

3. The warming humidified respiratory rewarming console of claim 2, wherein, The AC / DC path management circuit includes: an AC terminal ACIN connected to a switching power supply; pins 1 and 2 of the AC terminal ACIN are grounded through parallel capacitors CA3 and CA4, and pins 3 and 4 are grounded; pins 1 and 2 of the AC terminal ACIN are electrically connected to pins 1 and 3 of a Schottky diode, and are also electrically connected to the base of transistor QA8 through resistor RA13; a DC terminal DCIN connected to a DC power supply interface; pins 1 and 2 of the DC terminal DCIN are grounded through parallel capacitors CA5 and CA6, and pins 3 and 4 are grounded; pins 1 and 2 of the DC terminal DCIN are connected to a switching power supply, and pins 1 and 2 of the AC terminal ACIN are grounded through parallel capacitors CA5 and CA6, and pins 3 and 4 are grounded; pins 1 and 2 of the AC terminal DCIN are connected to a switching power supply, and pins 1 and 2 of the AC terminal ACIN are grounded through parallel capacitors CA5 and CA4, and pins 3 and 4 are grounded through resistor RA13; pins 1 and 2 of the AC terminal ACIN are electrically connected to pins 1 and 3 of a Schottky diode, and are also electrically connected to the base of transistor QA8 through resistor RA13; and pins 1 and 2 of the AC terminal DCIN are connected to a switching power supply, and pins 1 and 2 of the AC terminal ACIN are grounded through parallel capacitors CA5 and CA6, and pins 3 and 4 are grounded through resistor RA13. Pin 2 is electrically connected to the collector of transistor QA8 and the drain of field-effect transistor QA3 through resistor RA11. The base of transistor QA8 is grounded through resistor RA12, the collector is electrically connected to the base of transistor QA7, and the emitter is grounded. The base of transistor QA7 is grounded through resistor RA10, and the collector is connected to the gate of field-effect transistor QA3, one end of resistor RA8, and the gate and emitter of field-effect transistor QA4, respectively, through resistor RA9. The source of field-effect transistor QA3 and the source of field-effect transistor QA4 are both connected to the other end of resistor RA8. The drain of field-effect transistor QA4 and pin 2 of Schottky diode are both electrically connected to the voltage conversion circuit. The one-button switch circuit includes: the source of field-effect transistor QA1 is electrically connected to the battery, and is also electrically connected to the collector of transistor QA2 through resistors RA5 and RA4; the drain of field-effect transistor QA1 is electrically connected to the voltage conversion circuit to output the supply voltage VOUT to the voltage conversion circuit, and is also electrically connected to one end of resistor RA2; the gate of field-effect transistor QA1 is electrically connected to the cathode of diode DA1 through resistor RA6, and is also electrically connected to the collector of transistor QA2 through resistor RA4; the cathode of diode DA1 is connected to the switch to receive the on / off signal. The KEY signal sent by the main control unit is powered on by the anode of diode DA1 through resistor RA7. It also converts the KEY signal into a POWER signal and transmits it to the main control unit. It is also electrically connected to pin 2 of TVS1. Pin 1 of TVS1 and the emitter of transistor QA2 are grounded. The base of transistor QA2 is grounded through capacitor CA2 and resistor RA3. It is also electrically connected to the other end of resistor RA2 and to the main control unit through resistor RA1 to receive the ONEKRY signal sent by the main control unit.

4. The warming humidified respiratory rewarming console of claim 3, wherein, The voltage conversion circuit includes: the anode of diode DD6 is connected to the drain of field-effect transistor QA4 and pin 2 of Schottky transistor in AC / DC path management circuit to receive DC voltage VIN; the cathode is electrically connected to pin 1 of DC-DC power module UD1 through inductors LDM1 and LDM2; the anode of diode DD5 is connected to a one-button switch circuit to receive supply voltage VOUT; the cathode is electrically connected to inductor LDM1; electrolytic capacitors CD1 and CD2 connected in parallel between inductors LDM1 and LDM2 are grounded; pin 1 of DC-DC power module UD1 is grounded through capacitor CD3 and pin 2 is grounded; pin 3 of DC-DC power module UD1 is grounded through capacitor CD4; and DC5V is output through inductor DR1 to power electronic devices other than the main control unit. The voltage conversion circuit also includes: the IN and EN pins of the voltage regulator chip UD4 are connected to DC5V, the GND pin is grounded, the EN pin of the voltage regulator chip UD4 is grounded through capacitor CD15, the BP pin is grounded through capacitor CD17, the OUT pin outputs 3.3V to power the main control unit, and is also grounded through capacitor CD16 and electrolytic capacitor CD18 respectively.

5. The warming humidified respiratory rewarming console of claim 1, wherein, The respiratory ventilation module includes a fan PCB board and a respiratory ventilation component, and the fan PCB board is provided with a fan drive circuit. The breathing ventilation assembly includes a fan base fixed inside the housing, a fan mounting sleeve fixed on the fan base, a fan fixed on the fan mounting sleeve, an inlet of the fan connected to one end of an air inlet pipe via an air inlet rubber component, the other end of the air inlet pipe connected to an oxygen supply inlet, an outlet of the fan connected to one end of an air outlet pipe, the other end of the air outlet pipe connected to an internal breathing heating module via an air outlet connecting pipe, a one-way valve installed near the air outlet pipe in the air outlet connecting pipe, the air outlet connecting pipe also connected to the air inlet pipe, a sampling tube connected to the air outlet connecting pipe, and a pressure sensor installed inside the sampling tube; The fan drive circuit includes: the base of transistor Q3 is electrically connected to the main control unit through resistor R21 and grounded through resistor R22; the emitter of transistor Q3 is grounded; the collector of transistor Q3 is electrically connected to the gate of field-effect transistor Q4 through resistor R20; the gate of field-effect transistor Q4 is electrically connected to the source of field-effect transistor Q4 through resistor R19; the source of field-effect transistor Q4 is connected to DC5V; the drain of field-effect transistor Q4 is electrically connected to pin 2 of the fan interface through inductor DR4; the two ends of inductor DR4 are grounded through capacitors C12 and C13 respectively; pin 1 of the fan interface is grounded and electrically connected to the main control unit; pin 3 of the fan interface is electrically connected to the main control unit through resistor R18, grounded through resistor R18 and capacitor C14, and electrically connected to the main control unit through resistor R17; and the fan interface is connected to the fan.

6. The warming, humidified respiratory rewarming console of claim 5, wherein, The internal breathing heating module includes multiple heating tubes arranged side by side, with adjacent heating tubes connected together. The inlet of the first heating tube is connected to the air outlet connection pipe, and the outlet of the last heating tube is connected to the first inlet of the adapter assembly through the hot air connection pipe. Each heating tube is equipped with a PTC heating element, and the inner wall of each heating tube has a U-shaped corrugated structure.

7. The warming humidified respiratory rewarming console of claim 1, wherein, The breathing atomization module includes an atomization PCB board and an atomization component, and the atomization PCB board is provided with an atomization driving circuit; The atomizing component includes a liquid storage cup fixed inside the housing, a liquid storage cup cover on the top of the liquid storage cup, an inclined cavity at the bottom of the liquid storage cup, an atomizing pump fixed inside the inclined cavity, and an atomizing interface sealed at the outlet of the inclined cavity by a silicone ring. The atomizing interface is connected to the second inlet of the adapter component. The atomization drive circuit includes: the base of transistor Q8 is electrically connected to the main control unit through resistor R43 and grounded through resistor R44; the emitter of transistor Q8 is grounded; the collector of transistor Q8 is electrically connected to the gate of field-effect transistor Q9 through resistor R45; the gate of field-effect transistor Q9 is electrically connected to the source of field-effect transistor Q9 through resistor R46; the source of field-effect transistor Q9 is connected to DC5V; the drain of field-effect transistor Q9 is electrically connected to pin 2 of humidification interface JSQ and grounded through capacitor C28; pin 1 of humidification interface JSQ is grounded; and humidification interface JSQ is connected to the atomizing pump.

8. The warming, humidified respiratory rewarming host machine of claim 1, wherein, The adapter assembly includes a Y-shaped adapter tube, with an adapter cover on the notch of the Y-shaped adapter tube. The first inlet of the Y-shaped adapter tube is connected to the outlet of the internal breathing heating module, the second inlet is connected to the outlet of the breathing nebulization module, and the outlet is connected to the breathing heating interface.

9. The warming, humidified respiratory rewarming console of claim 1, wherein, The external breathing heating module includes an external breathing heating tube, and a heating resistance wire is provided inside the external breathing heating tube.

10. The warming, humidified respiratory rewarming console of claim 1, wherein, The outer casing includes a front shell and a rear cover, which are fixed together and sealed by a sealing ring. A battery compartment is provided on the rear cover, and shock-absorbing cotton is installed inside the battery compartment. A battery is placed inside the shock-absorbing cotton, and the battery compartment cover is provided with a battery cover.

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