Accurate anesthetic gas output control device and control method thereof

Abstract

The invention discloses a precise anesthetic gas output control device which comprises a mixing tank, a cover body, a socket and a volatilization tank, a collecting cavity, a mixing cavity I and a mixing cavity II are formed in the circumference of the mixing tank; the upper end of the mixing tank is detachably connected with a cover body; electric push rods are arranged at the upper ends of the collecting cavity, the mixing cavity I and the mixing cavity II through cross rods; guide pipes are symmetrically arranged in the middle of the lower end of the collecting cavity and are respectively communicated with the mixing cavity I and the mixing cavity II; a guide pipe with an electromagnetic valve I is arranged on the periphery of the lower end of the collecting cavity and is communicated with the volatilization tank; a second electromagnetic valve is arranged on the guide pipe at the lower end of the first mixing cavity, two guide pipes are arranged on the wall body of the lower portion of the first mixing cavity in an array mode, a third electromagnetic valve is arranged on one guide pipe, and a fourth electromagnetic valve is arranged on the other guide pipe; a fifth electromagnetic valve is arranged on the guide pipe at the lower end of the second mixing cavity, two guide pipes are arranged on the wall body of the lower portion of the second mixing cavity, a sixth electromagnetic valve is arranged on one guide pipe, and a seventh electromagnetic valve is arranged on the other guide pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of anesthesia auxiliary instruments, and particularly relates to an anesthesia gas precise output control device and a control method thereof. Background Art

[0002] Anesthesia refers to the use of drugs (called anesthetics) to prevent a patient from feeling pain during a medical procedure or surgery; volatile anesthetics are commonly used clinical anesthetics. Volatile anesthetics are liquids at room temperature but are volatile. When in use, the anesthetic is volatilized into a gas by heating, and the patient inhales it through the respiratory tract. For example, sevoflurane and isoflurane are currently relatively commonly used volatile anesthetics; volatile anesthetics are generally applicable to surgeries under general anesthesia and are very frequently used in clinical practice;

[0003] However, in the current clinical use of volatile anesthetics, the following technical problems exist:

[0004] Although the vaporizer of the anesthesia machine can achieve the output of anesthesia gas, the amount and concentration of the output gas are affected more by the outside world, and are easily affected by temperature, pressure, flow rate, the contact area between the anesthetic and the passing gas, etc., resulting in a large deviation between the concentration of the anesthesia gas and the predetermined output concentration of the anesthesia gas;

[0005] Therefore, the present invention discloses an anesthesia gas precise output control device and a control method thereof to ensure the stable output of volatile anesthetics and ensure the precise controllability of the output concentration of the anesthesia gas. Summary of the Invention

[0006] To achieve the above technical objectives and reach the above technical effects, the present invention is realized through the following technical solutions:

[0007] An anesthesia gas precise output control device includes: a mixing tank, a cover body, a socket, and a vaporizer;

[0008] A collection chamber, a first mixing chamber, and a second mixing chamber are circumferentially arranged on the mixing tank, and the upper end of the mixing tank is detachably connected to the cover body;

[0009] Cross bars for installing electric push rods are arranged at the upper ends of the collection chamber, the first mixing chamber, and the second mixing chamber;

[0010] Symmetrically arranged conduits are provided in the middle of the lower end of the collection chamber and are respectively connected to the first mixing chamber and the second mixing chamber, and a conduit with a solenoid valve I is arranged on the outer periphery of the lower end of the collection chamber and is connected to the vaporizer;

[0011] A solenoid valve two is provided on the conduit at the lower end of the mixing chamber one. Two conduits are arranged in an array on the lower wall of the mixing chamber one. A solenoid valve three is provided on one of the conduits, and a solenoid valve four is provided on the other conduit. A solenoid valve five is provided on the conduit at the lower end of the mixing chamber two. Two conduits are respectively arranged on the lower wall of the mixing chamber two. A solenoid valve six is provided on one of the conduits, and a solenoid valve seven is provided on the other conduit.

[0012] A socket is integrally formed on the side wall of the evaporation tank and is communicated with the inside of the socket.

[0013] Further, a piston disc is provided at the lower end of the electric push rod. A pressure sensor is provided on the piston disc. And a circular groove is opened at the lower end of the piston disc to install a mixing mechanism.

[0014] Further, the mixing mechanism includes a motor, a partition disc, and fan blades. The top of the circular groove at the lower end of the piston disc is detachably connected to the motor, and a partition disc is integrally formed in the middle of the circular groove. The middle of the output shaft of the motor is rotatably connected to the partition disc, and fan blades are installed at the lower end of the output shaft of the motor.

[0015] Further, a temperature control heater is detachably installed inside the evaporation tank and the lower part of the socket.

[0016] Further, a microcontroller is provided at the upper end of the cover body. A display screen and operation buttons are provided on the microcontroller. The microcontroller is electrically connected to the electric push rod, the motor, the pressure sensor, the solenoid valve one, the solenoid valve two, the solenoid valve three, the solenoid valve four, the solenoid valve five, the solenoid valve six, the solenoid valve seven, and the temperature control heater.

[0017] Further, the ends of the conduits on the solenoid valve three and the solenoid valve six are combined into one conduit.

[0018] Further, a liquid filling connector is provided on the socket.

[0019] The control method of the above-mentioned precise output control device for anesthetic gas; includes the following steps:

[0020] S1: Medical staff insert the anesthetic medicine bottle into the socket through the liquid filling connector and input the required output gas anesthetic concentration and heating temperature through the operation buttons on the microcontroller. The microcontroller calculates the volume of the anesthetic gas in the collection chamber and the volume of the air inside the collection chamber one and the collection chamber two according to the required anesthetic gas output concentration, and controls the other components to work separately.

[0021] S2: The microcontroller controls the electric push rod in the collection chamber and the mixing chamber one to contract a specified distance; and synchronously controls the solenoid valve one and the solenoid valve four to open. The gaseous anesthetic agent inside the evaporation tank enters the mixing chamber, and the external air enters the mixing chamber one.

[0022] S3: When the pressure sensors inside the collection chamber and the first mixing chamber detect that the internal gas pressure reaches the standard atmospheric pressure, they feedback signals to the microcontroller. While the microcontroller controls the first solenoid valve to close and the fourth solenoid valve to close, the microcontroller synchronously controls the second solenoid valve to open.

[0023] S4: The microcontroller controls the electric push rod inside the first mixing chamber to move to the top; and the microcontroller synchronously controls the electric push rod inside the collection chamber to move to the bottom, injecting the volatile anesthetic gas collected in the mixing chamber into the first mixing chamber; while controlling the electric push rod to work, the microcontroller controls the motor inside the first mixing chamber to work, stirring and mixing the gas inside the first mixing chamber.

[0024] S5: When the pressure sensor inside the first mixing chamber detects that the air pressure reaches the atmospheric pressure, the microcontroller controls the third solenoid valve to open, the second solenoid valve to close, and synchronously controls the electric push rod inside the first mixing chamber to slowly move to the bottom, slowly transporting the mixed anesthetic gas inside the first mixing chamber to the patient along the catheter connected to the third solenoid valve.

[0025] S6: Alternately configure anesthetic gas: The second mixing chamber and the mixing chamber repeat the above S2 - S5 to achieve the continuous alternate configuration and transportation of anesthetic gas inside the first mixing chamber and the second mixing chamber.

[0026] S7: Repeat the above S1 - S6.

[0027] The beneficial effects of the present invention are:

[0028] In order to avoid the problem that in the prior art, the quantity and concentration of the output gas are more affected by the outside world, and are easily affected by temperature, pressure, flow rate, the contact area between the anesthetic and the passing gas, etc., resulting in a large deviation between the anesthetic gas concentration and the predetermined anesthetic gas output concentration; the present invention discloses an anesthetic gas precise output control device and its control method, including: a mixing tank, a cover body, a socket, a volatile tank.

[0029] A collection chamber, a first mixing chamber, and a second mixing chamber are arranged inside the mixing tank; through the distributed work of the microcontroller controlling the electric push rod, the motor, the pressure sensor, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the sixth solenoid valve, and the seventh solenoid valve, the alternate configuration of the specified anesthetic concentration gas inside the first mixing chamber and the second mixing chamber is realized, and the continuous alternate transportation of the specified anesthetic gas is carried out to ensure the continuous and stable transportation of the anesthetic gas.

[0030] Among them, the control of the anesthetic gas at a specified concentration is achieved through proportional volume control. That is, the maximum volumes of the collection chamber, mixing chamber 1, and mixing chamber 2 are all C, and the movement distance of the electric push rod is B. To obtain an anesthetic gas with a concentration of A%, in S2, the microcontroller controls the contraction distance of the electric push rod in the collection chamber to be B·A%, and controls the contraction distance of the electric push rod 2 inside mixing chamber 1 or mixing chamber 2 to be B·(1 - A%). The gas in the collection chamber and mixing chamber 1 or mixing chamber 2 fills the space below the piston disc. That is, when the gas pressure in the collection chamber and mixing chamber 1 or mixing chamber is the atmospheric pressure, it means that the specified volume of volatile anesthetic gas or air has been collected. Then, the anesthetic gas in the collection chamber is mixed with the gas inside mixing chamber 1 or mixing chamber 2 to form an anesthetic gas with a specified concentration, ensuring precise control of the output gas anesthetic concentration and achieving stable output of the anesthetic gas. Description of the Drawings

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments.

[0032] Figure 1 It is a schematic diagram of the overall structure of an anesthetic gas precise output control device;

[0033] Figure 2 It is a schematic diagram of the overall structure of an anesthetic gas precise output control device;

[0034] Figure 3 It is a schematic cross-sectional view of an anesthetic gas precise output control device;

[0035] Figure 4 It is a schematic diagram of a partial structure of an anesthetic gas precise output control device;

[0036] Figure 5 It is a schematic diagram of the structure of an anesthetic gas precise output control device after removing the cover.

[0037] In the drawings, the component names represented by each label are:

[0038] 1 - mixing tank, 101 - collection chamber, 1021 - collection chamber 1, 10211 - solenoid valve 2, 10212 - solenoid valve 3, 10213 - solenoid valve 4, 1022 - collection chamber 2, 10221 - solenoid valve 5, 10222 - solenoid valve 6, 10223 - solenoid valve 7, 103 - cross bar, 104 - electric push rod, 1041 - piston disc, 1042 - pressure sensor, 1043 - motor, 10431 - fan blade, 10432 - partition disc, 2 - socket, 3 - evaporation tank, 301 - temperature control heater, 302 - solenoid valve 1, 4 - cover, 401 - microcontroller, 4011 - display screen, 4012 - operation button, 5 - catheter. Detailed implementation manners

[0039]

[0039] In order to solve the problems existing in the prior art's precise output control device for anesthetic gases, the present invention discloses a precise output control device for anesthetic gases, including: a mixing tank 1, a cover body 4, a socket 2, and an evaporation tank 3;

[0040]

[0040] The mixing tank 1 is circumferentially provided with a collection chamber 101, a first mixing chamber, and a second mixing chamber. The upper end of the mixing tank 1 is detachably connected to the cover body 4;

[0041]

[0041] Cross bars 103 are provided at the upper ends of the collection chamber 101, the first mixing chamber, and the second mixing chamber to install electric push rods 104;

[0042]

[0042] In the middle of the lower end of the collection chamber 101, symmetrically arranged conduits 5 are respectively connected to the first mixing chamber and the second mixing chamber. On the outer periphery of the lower end of the collection chamber 101, a conduit 5 with a solenoid valve 302 is connected to the evaporation tank 3;

[0043]

[0043] A solenoid valve 10211 is provided on the conduit 5 at the lower end of the first mixing chamber. Two conduits 5 are arrayed on the lower wall of the first mixing chamber. A solenoid valve 10212 is provided on one of the conduits 5, and a solenoid valve 10213 is provided on the other conduit 5; A solenoid valve 10221 is provided on the conduit 5 at the lower end of the second mixing chamber. Two conduits 5 are respectively provided on the lower wall of the second mixing chamber. A solenoid valve 10222 is provided on one of the conduits 5, and a solenoid valve 10223 is provided on the other conduit 5;

[0044]

[0044] The side wall of the evaporation tank 3 is integrally formed with a socket 2 and is connected to the inside of the socket 2;

[0045]

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0046] Embodiment 1

[0047] As Figures 1-5 Figures 1-5 Shown is a schematic structural diagram of the precise output control device for anesthetic gases of the present invention. In the present invention, a mixing tank 1, a cover body 4, a socket 2, and an evaporation tank 3 are provided;

[0048]

[0048] The mixing tank 1 is circumferentially provided with a collection chamber 101, a first mixing chamber, and a second mixing chamber. The upper end of the mixing tank 1 is detachably connected to the cover body 4;

[0049]

[0049] Cross bars 103 are provided at the upper ends of the collection chamber 101, the first mixing chamber, and the second mixing chamber to install electric push rods 104;

[0050] In the middle of the lower end of the collection chamber 101, two symmetrically arranged conduits 5 are provided, which are respectively communicated with the first mixing chamber and the second mixing chamber. On the outer periphery of the lower end of the collection chamber 101, a conduit 5 with a solenoid valve 302 is provided to communicate with the evaporation tank 3;

[0051] A solenoid valve 10211 is provided on the conduit 5 at the lower end of the first mixing chamber. Two conduits 5 are arranged in an array on the lower wall of the first mixing chamber. A solenoid valve 10212 is provided on one of the conduits 5, and a solenoid valve 10213 is provided on the other conduit 5. A solenoid valve 10221 is provided on the conduit 5 at the lower end of the second mixing chamber. Two conduits 5 are respectively provided on the lower wall of the second mixing chamber. A solenoid valve 10222 is provided on one of the conduits 5, and a solenoid valve 10223 is provided on the other conduit 5;

[0052] A socket 2 is integrally formed on the side wall of the evaporation tank 3 and is communicated with the inside of the socket 2,

[0053] In this embodiment, a piston disk 1041 is provided at the lower end of the electric push rod 104; a pressure sensor 1042 is provided on the piston disk 1041; and a circular groove is formed at the lower end of the piston disk 1041 to install a mixing mechanism;

[0054] In this embodiment, the mixing mechanism includes a motor 1043, a partition disk 10432, and fan blades 10431; the motor 1043 is detachably connected to the top of the circular groove at the lower end of the piston disk 1041, and a partition disk 10432 is integrally formed in the middle of the circular groove; the middle of the output shaft of the motor 1043 is rotatably connected to the partition disk 10432, and the fan blades 10431 are installed at the lower end of the output shaft of the motor 1043;

[0055] In this embodiment, a temperature control heater 301 is detachably installed inside the evaporation tank 3 and at the lower part of the socket 2;

[0056] In this embodiment, a microcontroller 401 is provided at the upper end of the cover body 4; a display screen 4011 and operation buttons 4012 are provided on the microcontroller 401; the microcontroller 401 is electrically connected to the electric push rod 104, the motor 1043, the pressure sensor 1042, the solenoid valve 302, the solenoid valve 10211, the solenoid valve 10212, the solenoid valve 10213, the solenoid valve 10221, the solenoid valve 10222, the solenoid valve 10223, and the temperature control heater 301;

[0057] In this embodiment, the ends of the conduits 5 on the solenoid valves 10212 and 10222 are combined into one conduit 5;

[0058] In this embodiment, a liquid filling joint is provided on the socket 2, and is connected to an anesthetic liquid medicine bottle through the liquid filling joint to guide the anesthetic liquid medicine into the inside of the evaporation tank 3;

[0059] In this embodiment, the microcontroller 401, the temperature control heater 301, the first electromagnetic valve 302, the second electromagnetic valve 10211, the third electromagnetic valve 10212, the fourth electromagnetic valve 10213, the fifth electromagnetic valve 10221, the sixth electromagnetic valve 10222, the seventh electromagnetic valve 10223, the electric push rod 104, the motor 1043, the fan blade 10431, etc. are all common electronic components used by those skilled in the art. Those skilled in the art can select appropriate components according to the product size and working requirements, and no further elaboration will be made here;

[0060] The control method of the above-mentioned anesthetic gas precise output control device; includes the following steps:

[0061] S1: Medical staff insert the anesthetic medicine bottle into the socket 2 through the liquid adding joint, and input the required output gas anesthetic concentration and heating temperature through the operation button 4012 on the microcontroller 401; the microcontroller 401 calculates the volume of anesthetic gas in the collection chamber 101 and the volume of air inside the first collection chamber 1021 and the second collection chamber 1022 according to the required anesthetic gas output concentration, and controls the distribution of the remaining components to work;

[0062] S2: The microcontroller 401 controls the electric push rod 104 inside the collection chamber 101 and the first mixing chamber to contract a specified distance; and simultaneously controls the first electromagnetic valve 302 and the fourth electromagnetic valve 10213 to open, the gas anesthetic in the volatilization tank 3 enters the mixing chamber, and the external air enters the first mixing chamber;

[0063] S3: When the pressure sensors 1042 inside the collection chamber 101 and the first mixing chamber detect that the internal gas pressure reaches the standard atmospheric pressure, they feedback the signal to the microcontroller 401; while the microcontroller 401 controls the first electromagnetic valve 302 to close and the fourth electromagnetic valve 10213 to close, the microcontroller 401 simultaneously controls the second electromagnetic valve 10211 to open;

[0064] S4: The microcontroller 401 controls the electric push rod 104 inside the first mixing chamber to move to the top; and the microcontroller 401 simultaneously controls the electric push rod 104 inside the collection chamber 101 to move to the bottom, and injects the volatile anesthetic gas collected in the mixing chamber into the first mixing chamber; while controlling the electric push rod 104 to work, the microcontroller 401 controls the motor 1043 inside the first mixing chamber to work, and stirs and mixes the gas inside the first mixing chamber;

[0065] S5: When the pressure sensor 1042 inside the first mixing chamber detects that the air pressure reaches the atmospheric pressure, the microcontroller 401 controls the third electromagnetic valve 10212 to open, the second electromagnetic valve 10211 to close, and simultaneously controls the electric push rod 104 inside the first mixing chamber to slowly move to the bottom, and conveys the mixed anesthetic gas inside the first mixing chamber to the patient slowly along the catheter 5 connected to the third electromagnetic valve 10212;

[0066] S6: Alternately configure the anesthetic gas: The mixing chamber two and the mixing chamber repeat the above S2 - S5 to achieve continuous alternate configuration and delivery of the anesthetic gas inside the mixing chamber one and the mixing chamber two;

[0067] S7: Repeat the above S1 - S6.

[0068] In this embodiment, the microcontroller 401 in step S1 calculates the volume of the anesthetic gas in the collection chamber 101 and the volume of the air inside the first collection chamber 1021 and the second collection chamber 1022 according to the required output concentration of the anesthetic gas through the following method:

[0069] The maximum volumes of the collection chamber 101, the first mixing chamber, and the second mixing chamber are all C, and the moving distance of the electric push rod 104 is B; for an anesthetic gas with a required concentration of A%, the microcontroller 401 controls the contraction distance of the electric push rod 104 in the collection chamber 101 to be B·A% in S2, and controls the contraction distance of the electric push rod 104 two inside the first mixing chamber or the second mixing chamber to be B·(1 - A%);

[0070] Wherein S6 is specifically:

[0071] S2: The microcontroller 401 controls the electric push rod 104 in the collection chamber 101 and the second mixing chamber to contract by a specified distance; and simultaneously controls the solenoid valve one 302 and the solenoid valve seven 10223 to open, so that the gaseous anesthetic in the volatile tank 3 enters the mixing chamber, and the external air enters the second mixing chamber;

[0072] S3: When the pressure sensors 1042 in the collection chamber 101 and the second mixing chamber detect that the internal gas pressure reaches the standard atmospheric pressure, they send signals back to the microcontroller 401; while the microcontroller 401 controls the solenoid valve one 302 to close and the solenoid valve seven 10223 to close, the microcontroller 401 simultaneously controls the solenoid valve five 10221 to open;

[0073] S4: The microcontroller 401 controls the electric push rod 104 in the second mixing chamber to move to the top; and the microcontroller 401 simultaneously controls the electric push rod 104 in the collection chamber 101 to move to the bottom, and injects the volatile anesthetic gas collected in the mixing chamber into the second mixing chamber; while controlling the electric push rod 104 to work, the microcontroller 401 controls the motor 1043 in the second mixing chamber to work to stir and mix the gas inside the second mixing chamber;

[0074] S5: When the pressure sensor 1042 inside the second mixing chamber detects that the air pressure reaches atmospheric pressure, the microcontroller 401 controls the solenoid valve six 10222 to open, the solenoid valve five 10221 to close, and synchronously controls the electric push rod 104 inside the first mixing chamber to slowly move to the bottom, and conveys the mixed anesthetic gas inside the first mixing chamber to the patient slowly along the catheter 5 connected to the solenoid valve three 10212;

[0075] Moreover, the delivery time of the anesthetic gas configured in step S5 is longer than the anesthetic gas configuration time in step S6;

[0076] In this embodiment, a collection chamber 101, a first mixing chamber, and a second mixing chamber are arranged inside the mixing tank 1; the microcontroller 401 controls the distributed operation of the electric push rod 104, the motor 1043, the pressure sensor 1042, the solenoid valve one 302, the solenoid valve two 10211, the solenoid valve three 10212, the solenoid valve four 10213, the solenoid valve five 10221, the solenoid valve six 10222, and the solenoid valve seven 10223 to alternately configure the anesthetic gas with a specified concentration inside the first mixing chamber and the second mixing chamber, and perform the continuous alternate delivery of the specified anesthetic gas to ensure the continuous and stable delivery of the anesthetic gas;

[0077] Among them, the control of the anesthetic gas with a specified concentration is through proportional volume control, that is, the maximum volumes of the collection chamber 101, the first mixing chamber, and the second mixing chamber are all C, and the movement distance of the electric push rod 104 is B; for an anesthetic gas with a required concentration of A%, the microcontroller 401 controls the contraction distance of the electric push rod 104 in the collection chamber 101 to be B·A% in S2, and controls the contraction distance of the electric push rod 104 two inside the first mixing chamber or the second mixing chamber to be B·(1 - A%); the gas inside the collection chamber 101 and the first mixing chamber or the second mixing chamber fills the space below the piston disc 1041, that is, when the gas pressure inside the collection chamber 101 and the first mixing chamber or the internal mixing chamber is atmospheric pressure, it means that the specified volume of volatile anesthetic gas or air has been collected, and then the anesthetic gas in the collection chamber 101 is mixed with the gas inside the first mixing chamber or the second mixing chamber to form an anesthetic gas with a specified concentration, ensuring the precise control of the output gas anesthetic concentration; realizing the stable output of the anesthetic gas.

[0078] The collection chamber 101 is used to ensure the collection of a fixed amount of anesthetic gas, and then an anesthetic gas with a calibrated concentration is mixed. The amount of the volatile gas will not be affected by factors such as pressure, temperature, and flow rate, ensuring the continuous stability of the anesthetic gas. And through the continuous alternate configuration and delivery of the anesthetic gas with a specified concentration, the coherence and rapid operation of the anesthetic process are ensured.

[0079] In summary, the anesthetic gas precise output control device and its control method of the present invention include: a mixing tank 1, a cover body 4, a socket 2, and a volatile tank 3;

[0080] A collection chamber 101, a first mixing chamber, and a second mixing chamber are provided inside the mixing tank 1; the electric push rod 104, the motor 1043, the pressure sensor 1042, the first solenoid valve 302, the second solenoid valve 10211, the third solenoid valve 10212, the fourth solenoid valve 10213, the fifth solenoid valve 10221, the sixth solenoid valve 10222, and the seventh solenoid valve 10223 are controlled by the microcontroller 401 to distribute and work, so as to alternately configure the gas with a specified anesthetic concentration inside the first mixing chamber and the second mixing chamber, and continuously and alternately transport the specified anesthetic gas, ensuring the continuous and stable transport of the anesthetic gas;

[0081] Among them, the control of the anesthetic gas with a specified concentration is through proportional volume control, that is, the maximum volumes of the collection chamber 101, the first mixing chamber, and the second mixing chamber are all C, and the moving distance of the electric push rod 104 is B; when an anesthetic gas with a concentration of A% is required, the microcontroller 401 controls the contraction distance of the electric push rod 104 in the collection chamber 101 to be B·A% in S2, and controls the contraction distance of the electric push rod 104 in the first mixing chamber or the second mixing chamber to be B·(1 - A%); the gas in the collection chamber 101 and the first mixing chamber or the second mixing chamber fills the space below the piston disk 1041, that is, when the gas pressure in the collection chamber 101 and the first mixing chamber or the second mixing chamber is the atmospheric pressure, it means that a specified volume of volatile anesthetic gas or air has been collected, and then the anesthetic gas in the collection chamber 101 is mixed with the gas in the first mixing chamber or the second mixing chamber to form an anesthetic gas with a specified concentration, ensuring the precise control of the output gas anesthetic concentration; realizing the stable output of the anesthetic gas.

[0082] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described.

Claims

1. A precise output control device for anesthetic gas, characterized in that: include: Mixing tank, cover, socket, vaporizer; The mixing tank is provided with a collecting chamber, a mixing chamber 1 and a mixing chamber 2 on its upper circumference, and the upper end of the mixing tank is detachably connected to a cover body; The upper ends of the collecting chamber, the first mixing chamber and the second mixing chamber are provided with electric push rods mounted on cross bars; The middle part of the lower end of the collecting chamber is provided with symmetrically arranged conduits which are respectively connected to the mixing chamber 1 and the mixing chamber 2, and the outer periphery of the lower end of the collecting chamber is provided with a conduit with a solenoid valve 1 which is connected to the volatilizer; A solenoid valve 2 is arranged on the conduit at the lower end of the mixing chamber, and two conduits are arranged in an array on the lower wall of the mixing chamber, one of which is provided with a solenoid valve 3, and the other is provided with a solenoid valve 4; a solenoid valve 5 is arranged on the conduit at the lower end of the mixing chamber 2, and two conduits are respectively arranged on the lower wall of the mixing chamber 2, one of which is provided with a solenoid valve 6, and the other is provided with a solenoid valve 7.

2. The anesthetic gas precise output control device according to claim 1, characterized in that: A piston disc is arranged at the lower end of the electric push rod; a pressure sensor is arranged on the piston disc; and a circular groove is provided at the lower end of the piston disc to install a mixing mechanism.

3. The anesthetic gas precise output control device according to claim 1, characterized in that: The mixing mechanism includes a motor, a separator plate, and a fan blade; the top of the circular groove at the lower end of the piston disc is detachably connected to the motor, and a separator plate is integrally formed in the middle of the circular groove; the middle of the motor output shaft is rotatably connected to the separator plate, and a fan blade is installed at the lower end of the motor output shaft.

4. The anesthetic gas precise output control device according to claim 1, characterized in that: The interior of the vaporizer and the lower part of the socket are detachably mounted with a temperature-controlled heater.

5. The anesthetic gas precise output control device according to claim 1, characterized in that: A microcontroller is arranged on the upper end of the cover body; a display screen and operation buttons are arranged on the microcontroller; the microcontroller is connected with an electric push rod, a motor, a pressure sensor, solenoid valve one, solenoid valve two, solenoid valve three, solenoid valve four, solenoid valve five, solenoid valve six, solenoid valve seven and a temperature control heater circuit.

6. The anesthetic gas precise output control device according to claim 1, characterized in that: The ends of the conduits on the solenoid valve three and the solenoid valve six are combined into one conduit.

7. The anesthetic gas precise output control device according to claim 1, characterized in that: A liquid adding joint is arranged on the socket.

8. A control method for an anesthetic gas precise output control device according to any one of claims 1 to 7, comprising the following steps: S1: The medical staff inserts the anesthetic bottle into the socket through the liquid filling joint, and inputs the required output gas anesthetic concentration and heating temperature through the operation button on the microcontroller; the microcontroller calculates the anesthetic gas volume in the collection chamber and the air volume inside the collection chamber 1 and the collection chamber 2 according to the required anesthetic gas output concentration, and controls the distribution work of the remaining components; S2: The microcontroller controls the electric push rods in the collection chamber and the mixing chamber 1 to retract to a specified distance; and synchronously controls the opening of the solenoid valve 1 and the solenoid valve 4, so that the gaseous anesthetic in the vaporizer enters the mixing chamber, and the external air enters the mixing chamber 1; S3: When the pressure sensor inside the collecting chamber and the mixing chamber 1 detects that the internal gas pressure reaches the standard atmospheric pressure, the signal is fed back to the microcontroller; the microcontroller controls the solenoid valve 1 to close and the solenoid valve 4 to close, and the microcontroller synchronously controls the solenoid valve 2 to open; S4: The microcontroller controls the electric push rod inside the mixing chamber 1 to move to the top; and the microcontroller synchronously controls the electric push rod inside the collecting chamber to move to the bottom, so as to push the volatile anesthetic gas collected in the mixing chamber into the mixing chamber 1; while controlling the electric push rod to work, the microcontroller controls the motor inside the mixing chamber 1 to work, so as to stir and mix the gas inside the mixing chamber 1; S5: When the pressure sensor inside the mixing chamber 1 detects that the air pressure reaches the atmospheric pressure, the microcontroller controls the solenoid valve 3 to open and the solenoid valve 2 to close, and synchronously controls the electric push rod inside the mixing chamber 1 to move slowly to the bottom, so that the mixed anesthetic gas inside the mixing chamber 1 is slowly delivered to the patient along the catheter connected to the solenoid valve 3; S6: Alternating configuration of anesthetic gas: Mixing chamber 2 and mixing chamber 2 repeat the above S2-S5 to achieve continuous alternating configuration and delivery of anesthetic gas in mixing chamber 1 and mixing chamber 2; S7: Repeat the above S1-S6.

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