CN117442840A - Electric control evaporator - Google Patents

Electric control evaporator Download PDF

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Publication number
CN117442840A
CN117442840A CN202311333841.XA CN202311333841A CN117442840A CN 117442840 A CN117442840 A CN 117442840A CN 202311333841 A CN202311333841 A CN 202311333841A CN 117442840 A CN117442840 A CN 117442840A
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CN
China
Prior art keywords
hole
plunger
evaporation
valve plate
plunger cavity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311333841.XA
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Chinese (zh)
Inventor
武宾宾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Yian Aomei Medical Equipment Co ltd
Original Assignee
Hebei Yian Aomei Medical Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Yian Aomei Medical Equipment Co ltd filed Critical Hebei Yian Aomei Medical Equipment Co ltd
Priority to CN202311333841.XA priority Critical patent/CN117442840A/en
Publication of CN117442840A publication Critical patent/CN117442840A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/18—Vaporising devices for anaesthetic preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/202—Controlled valves electrically actuated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • A61M2202/0468—Liquids non-physiological
    • A61M2202/048—Anaesthetics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3368—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates

Abstract

The invention relates to the technical field of anesthesia equipment, in particular to an electric control evaporator, which comprises: the medicine storage tank mechanism, the evaporation mechanism, the first plunger pump assembly, the second plunger pump assembly, the upper valve plate (4-15) and the lower valve plate (4-14); when plunger rods of the first plunger pump assembly and the second plunger pump assembly move upwards, corresponding plunger cavities are in a negative pressure state, and when the plunger rods move downwards, corresponding plunger cavities are in a negative pressure state; the upper valve plate (4-15) and the lower valve plate (4-14) are arranged between a tank body (2-1) and an upper opening of a first plunger cavity, between the upper opening of the first plunger cavity and a lower opening of the first plunger cavity, between the lower opening of the first plunger cavity and an evaporation chamber of the evaporation mechanism, between the tank body (2-1) and an upper opening of a second plunger cavity, between the upper opening of the second plunger cavity and a lower opening of the second plunger cavity and/or between the lower opening of the second plunger cavity and the evaporation chamber of the evaporation mechanism, respectively, and fluid passages are provided. The invention has low cost, simple structure, easy production and long service life.

Description

Electric control evaporator
Technical Field
The invention relates to the technical field of anesthesia equipment, in particular to an electric control evaporator.
Background
Medical anesthesia machines are used with evaporators which are broadly divided into two categories: one type is a traditional mechanical evaporator, which has been used for a relatively long time along with the development of anesthesia technology, and various low-end anesthesia machines are still used at present. Typical examples of such evaporators include variable bypass loop inner evaporators, flow measurement general-purpose metering loop outer evaporators, variable bypass dedicated metering loop outer evaporators, and injection type evaporators; the electric control evaporator combines the characteristics of an electronic control technology and a measuring technology on the basis of combining the principle of a mechanical evaporator under the characteristic of fully connecting anesthetic drugs, so that the evaporator has great progress in the aspects of concentration control, compliance and the like. Typical representatives in this regard are the Alandin 2222 electronically controlled evaporator, the Tec6 desflurane evaporator, the GE/Datex-ohmada Aladin and Alandin2 box type evaporators and the Maquet FLOW-i and Drager DIVA electrospray evaporators.
The key point of the anesthetic evaporator is that the accurate output and the faster response of the concentration of anesthetic can be controlled, and the characteristics of the evaporator are analyzed to know that except for Maquet FLOW-i and Drager DIVA electronic injection type evaporators, other evaporators are traditional mechanical evaporators or electric control evaporators, liquid anesthetic is evaporated into a gas state by various methods, and then the output proportion of the anesthetic gas is controlled to be matched with fresh gas, so that the output of a determined concentration is realized. This solution has a very great disadvantage in that it is difficult to precisely control the amount of substance due to the influence of temperature and environmental pressure on the gas, which results in a large error in the concentration of the gunpowder output from the evaporator.
Compared with other evaporators, the Maquet FLOW-i and Drager DIVA electrospray evaporator controls the dosage of liquid anesthetic sprayed by anesthetic, and the sprayed anesthetic is fully evaporated in an evaporation chamber by means of heating, atomizing and the like, and then is mixed with fresh gas to realize concentration control. Although the electric spraying type evaporator controls the liquid dosage, the electric spraying type evaporator provides power through compressed air, and the quantity of the anesthetic sprayed is not easy to control, so that the concentration of the anesthetic is difficult to control accurately, and the concentration with higher relative precision can be obtained only by taking the average value through intermittent small quantity of spraying.
The patent application with the application number of 202211660947.6 discloses an electric control evaporator and a control method thereof, and provides a method for controlling the pushing speed through a plunger pump system and a valve seat to control the volume of gunpowder, and improving the accuracy of the concentration of the output gunpowder by utilizing the incompressibility of the volume of liquid. Specifically, the plunger pump divides the plunger cavity into a left cavity and a right cavity through the piston, the volume of the gunpowder is controlled by controlling the forward and backward speed of the piston through the plunger pump, and if the pushed liquid gunpowder is completely evaporated after being mixed with fresh gas, the gunpowder mixed gas with certain concentration can be obtained. However, the whole piston is soaked in the cavity of the plunger filled with anesthetic liquid, the sealing part of the piston, especially the sealing ring, can be softened and swelled in the anesthetic liquid, the resistance of the piston rod of the plunger pump is very large due to swelling, and even the motor is blocked. Moreover, the patent application selectively communicates the plunger cavity and the evaporation cavity through the switching valve and the upper and lower valve plates of the evaporation core, but the processing cost is high by using two switching valves, the assembly is difficult, and the points needing sealing are more. In summary, the patent application has the disadvantages of high cost, high sealing difficulty, complex structure and unfavorable production in the processing production process, and in actual use, the motor is blocked due to swelling.
Disclosure of Invention
The invention aims to solve the problems that the anesthetic precision is not easy to control, the processing cost of products is high, the production is not facilitated, and the motor is at risk of blocking caused by swelling, so that the electric control evaporator is provided.
The invention provides an electric control evaporator, comprising: the medicine storage tank mechanism is used for containing anesthetic liquid, and the evaporation mechanism is used for enabling the anesthetic liquid to evaporate into a gas state, and is matched with fresh gas, mixed anesthetic gas with preset concentration is output, and the electric control evaporator further comprises: a first plunger pump assembly, a second plunger pump assembly, an upper valve plate 4-15 and a lower valve plate 4-14, wherein,
the evaporation mechanism includes: the evaporation seat 4-1 is vertically provided with a first deep cavity and a second deep cavity, the first deep cavity is used as a first plunger cavity of the first plunger pump assembly, and the second deep cavity is used as a second plunger cavity of the second plunger pump assembly;
the first plunger rod 4-19 of the first plunger pump assembly moves up and down in the first plunger cavity under the control of the linear motor 4-4; the side wall of the first plunger cavity is provided with a first plunger cavity upper opening and a first plunger cavity lower opening; when the first plunger rod 4-19 moves upwards, the first plunger cavity is in a negative pressure state, and when the first plunger rod 4-19 moves downwards, the first plunger cavity is in a positive pressure state;
the second plunger rod 4-22 of the second plunger pump assembly moves up and down in the second plunger cavity under the control of the linear motor 4-4; the side wall of the second plunger cavity is provided with a second plunger cavity upper opening and a second plunger cavity lower opening; when the second plunger rod 4-22 moves upwards, the second plunger cavity is in a negative pressure state, and when the second plunger rod 4-22 moves downwards, the second plunger cavity is in a positive pressure state;
the upper valve plate 4-15 and the lower valve plate 4-14 are tightly attached to form a switching valve; the upper valve plate 4-15 rotates under the drive of the rotating motor 4-6, and the upper valve plate and the lower valve plate 4-14 are arranged between the tank body 2-1 of the medicine storage tank mechanism and the upper opening of the first plunger cavity, between the upper opening of the first plunger cavity and the lower opening of the first plunger cavity, between the lower opening of the first plunger cavity and the evaporating chamber of the evaporating mechanism, between the tank body 2-1 and the upper opening of the second plunger cavity, between the upper opening of the second plunger cavity and the lower opening of the second plunger cavity and/or between the lower opening of the second plunger cavity and the evaporating chamber of the evaporating mechanism, respectively, so that fluid passages are respectively provided.
As an improvement of the device, a first sealing sleeve is arranged at the opening of the first plunger cavity, the outer ring of the first sealing sleeve is connected with the first plunger cavity through a sealing ring, and the inner ring is connected with the first plunger rod 4-19 through a sealing ring;
the opening of the second plunger cavity is provided with a second sealing sleeve, the outer ring of the second sealing sleeve is connected with the second plunger cavity through a sealing ring, and the inner ring is connected with the second plunger rods 4-22 through the sealing ring;
the first plunger rod 4-19 and the second plunger rod 4-22 are respectively connected with the extending shaft of the linear motor 4-4 through floating connectors; the linear motor 4-4 is provided with a first encoder for feeding back the movement distance of the extension shaft of the linear motor 4-4 in real time to realize accurate control of the movement of the first plunger rod 4-19 and the second plunger rod 4-22.
As an improvement of the device, the upper end of the evaporation seat 4-1 is provided with a circular trimming groove, the bottom of the groove is provided with a first flat air passage opening 4-20 and a second flat air passage opening 4-21, the first flat air passage opening 4-20 is communicated with a fresh gas inlet 4-8, and the second flat air passage opening 4-21 is communicated with a mixed gunpowder gas outlet 4-9; an evaporation seat boss is arranged between the first flat air passage opening 4-20 and the second flat air passage opening 4-21; x are circumferentially distributed near the inner edge of the bottom of the circular trimming groove ′ 1 hole, X ′ 2 holes, X ′ 3 holes, X ′ 4 wells and X ′ 5 holes; wherein,
the X is ′ The hole 1 is communicated with the hole Y1 of the evaporation seat 4-1 through a first internal pipeline of the evaporation seat 4-1, and the hole Y1 is connected with a medicine storage tank mechanism;
the X is ′ The 2 holes are communicated with the opening hole on the first plunger cavity of the first plunger pump assembly through a second internal pipeline of the evaporation seat 4-1;
the X is ′ The 3 holes are communicated with the lower opening of the first plunger cavity of the first plunger pump assembly through a third inner pipeline of the evaporation seat 4-1;
the X is ′ The 4 holes are communicated with an opening on a second plunger cavity of the second plunger pump assembly through a fourth internal pipeline of the evaporation seat 4-1;
the X is ′ The 5 holes are communicated with a lower opening of a second plunger cavity of the second plunger pump assembly through a fifth inner pipeline of the evaporation seat 4-1;
the lower valve plate 4-14 is provided with a round trimming boss corresponding to the round trimming groove of the evaporation seat 4-1, and is used for blind insertion positioning of the lower valve plate 4-14 and the evaporation seat 4-1; the round trimming boss is also provided with a plurality of grooves which are matched with the X ′ 1 hole, X ′ 2 holes, X ′ 3 holes, X ′ 4 wells and X ′ The 5 holes are in one-to-one correspondence with the X1 hole, the X2 hole, the X3 hole, the X4 hole and the X5 hole; the lower valve plate 4-14 is provided with a lower valve plate groove which covers the first flat air passage opening 4-20, the second flat air passage opening 4-21 and the evaporation seat boss, and the bottom surface of the lower valve plate groove and the top surface of the evaporation seat bossA gap exists between the two; a gap between the bottom surface of the lower valve plate groove and the top surface of the evaporation seat boss is used as an evaporation chamber; the bottom of the lower valve plate groove is also provided with a plurality of through holes in a circular arc arrangement;
the upper valve plate 4-15 is driven by the rotating motor 4-6 to rotate, and the upper valve plate 4-15 is symmetrically provided with a first I-shaped groove and a second I-shaped groove; the inner and outer grooves of the first I-shaped groove and the second I-shaped groove are arc-shaped, and the center points of the inner and outer grooves are connected by a straight groove; the outer layer groove radians of the first I-shaped groove and the second I-shaped groove are the same as the circumferential radians among the X1 hole, the X2 hole, the X3 hole, the X4 hole and the X5 hole; and the radian of the inner layer grooves of the first I-shaped groove and the second I-shaped groove is the same as the arrangement radian of the through holes.
As an improvement of the device, when the outer layer groove of the first I-shaped groove covers the X1 hole and the X2 hole, the first I-shaped groove provides a fluid passage between the X1 hole and the X2 hole, and anesthetic liquid sequentially passes through the Y1 hole, the first inner pipeline of the evaporation seat 4-1 and the X from the medicine storage tank mechanism ′ 1 hole, X1 hole, first I-shaped groove, X2 hole and X ′ The second inner pipeline of the 2-hole and evaporation seat 4-1 and the opening on the first plunger cavity flow into the first plunger cavity of the first plunger pump assembly;
when the outer layer groove of the first I-shaped groove covers the X2 hole and the X3 hole, the first I-shaped groove provides a fluid channel between the X2 hole and the X3 hole;
when the outer layer groove of the first I-shaped groove covers the X3 hole and the inner layer groove of the first I-shaped groove covers the through hole of the lower valve plate, the first I-shaped groove provides a fluid channel between the X3 hole and the through hole; the anesthetic liquid in the first plunger cavity sequentially passes through the lower opening of the first plunger cavity, the third inner pipeline of the evaporation seat 4-1 and the X ′ 3 holes, X3 holes, a first I-shaped groove and a through hole flow into the evaporation chamber;
when the outer layer groove of the second I-shaped groove covers the X1 hole and the X4 hole, the second I-shaped groove provides a fluid channel between the X1 hole and the X4 hole, and anesthetic fluid sequentially passes through the Y1 hole, the first inner pipeline of the evaporation seat 4-1 and the X from the medicine storage tank mechanism ′ 1 hole, X1 hole, second I-shaped groove,X4 hole, X ′ The 4-hole and evaporation seat 4-1 fourth inner pipe and the opening on the second plunger cavity flow into the second plunger cavity;
when the outer layer groove of the second I-shaped groove covers the X4 hole and the X5 hole, the second I-shaped groove provides a fluid channel between the X4 hole and the X5 hole;
when the outer layer groove of the second I-shaped groove covers the X5 hole and the inner layer groove of the second I-shaped groove covers the through hole of the lower valve plate, the second I-shaped groove provides a fluid channel between the X5 hole and the through hole; anesthetic liquid in the second plunger cavity sequentially passes through the lower opening of the second plunger cavity, the fifth inner pipeline of the evaporation seat 4-1 and X ′ The 5 holes, the X5 holes, the second I-shaped grooves and the through holes flow into the evaporation chamber.
As an improvement of the device, the first flat air passage port 4-20 is communicated with the fresh air inlet 4-8, and the second flat air passage port 4-21 is connected with the mixed gunpowder air outlet 4-9; and the gunny liquid in the first plunger cavity or the second plunger cavity flows into a gap between the lower valve plate groove and the evaporation seat boss through the through hole and is evaporated, and the evaporated gunny gas is mixed with the fresh gas flowing in through the fresh gas inlet 4-8 and then is output through the mixed gunny gas outlet 4-9.
As an improvement of the device, a concentration regulator 4-13 is arranged between the second flat air passage opening 4-21 and the mixed gunpowder gas outlet 4-9, and is used for regulating the size of the cross section area of the fluid passage between the second flat air passage opening 4-21 and the mixed gunpowder gas outlet 4-9.
As an improvement of the device, an upper valve plate 4-15, a thrust bearing 4-16, a connecting shaft 4-17, a spring, a rotating motor connecting seat 4-7, a rotating motor 4-6 and a second encoder 4-5 are sequentially arranged above the lower valve plate 4-14; wherein,
the spring is clamped between the rotating motor connecting seat 4-7 and the thrust bearing 4-16, and the compression force of the spring is sequentially transmitted to the thrust bearing 4-16, the upper valve plate 4-15 and the lower valve plate 4-14, so that the upper valve plate 4-15 and the lower valve plate 4-14 are tightly attached;
the upper valve plate 4-15 is coupled with the connecting shaft 4-17, and a motor shaft of the rotating motor drives the upper valve plate 4-15 to rotate through the connecting shaft 4-17 so as to realize torque transmission;
the second encoder 4-5 is used for positioning the rotation angle of the upper valve plate 4-15.
As an improvement of the above device, the medicine storage tank mechanism comprises: 2-1 parts of a tank body, 2-2 parts of a liquid level column, 2-6 parts of an electronic liquid level meter, a pressure sensor and 2-4 parts of an electromagnetic valve; wherein,
the tank 2-1 includes: 2-13 of a medicine injection port for injecting anesthetic and 2-10 of a medicine discharge port for discharging the anesthetic to the outside; the medicine injection port 2-13 is provided with a medicine cover 2-3, and the opening and closing of the medicine discharge port 2-10 are controlled by a medicine discharge knob 2-9; the tank 2-1 further comprises: and the tank body 2-1 is communicated with the first plunger pump assembly or/and the second plunger pump assembly through the medicine suction port 2-12.
The liquid level column 2-2 is communicated with the tank body 2-1 and is used for manually observing the liquid level height of the tank body 2-1;
the electronic liquid level meter 2-6 is used for monitoring the liquid level height of the tank body 2-1 in real time;
the pressure sensor is used for monitoring the pressure in the tank body 2-1 in real time;
the electromagnetic valve 2-4 is used for controlling the communication between the tank body 2-1 and the fresh gas inlet 4-8, wherein the tank body 2-1 is connected with the fresh gas inlet 4-8 through the gas supplementing pipe 3.
The invention has the advantage that the invention realizes the accurate control and quick response of the concentration of the anesthetic. The electric control evaporator provided by the invention controls the speed of preparing and pushing anesthetic liquid to control the volume of the anesthetic, the incompressibility of the liquid volume is utilized to improve the accuracy of the concentration of the output anesthetic, the influence of temperature, air pressure and the like on the liquid anesthetic can be ignored, the linear motor is utilized to accurately control the speed of pushing the plunger pump, and the output anesthetic is evaporated immediately after being mixed with fresh air, so that the determined concentration of the anesthetic is obtained. If the gunny gas with different concentrations under different flow rates is needed, only the flow rate of the fresh gas and the pushing speed of the plunger pump are required to be controlled. In addition, the invention only uses one switching valve, and controls the on and off of the medicine inlet and outlet of the two plunger pump assemblies by controlling the rotation angle of the switching valve, so as to realize the functions of sucking and pushing medicine of the plunger pump assemblies, and when one plunger pump assembly sucks medicine, the other plunger pump assembly can push medicine at the same time; and only one switching valve is used, so that the assembly difficulty is small, the number of points to be sealed is small, and the cost is low, therefore, the structure is simple, the processing production is facilitated, and the production is easy. The plunger rod is placed in the plunger cavity to push and suck medicine, the plunger rod is contacted with anesthetic liquid, the plunger rod cannot swell due to the anesthetic liquid, and the service life is long.
Drawings
FIG. 1 is a schematic diagram of an electrically controlled evaporator provided by the present invention;
FIG. 2 is an isometric view of a canister mechanism;
FIG. 3 is a front view of the drug storage canister mechanism;
FIG. 4 is an isometric view of an evaporation module;
FIG. 5 is a cross-sectional view of an evaporation module;
FIG. 6 is a schematic zero position diagram of a switching valve;
FIG. 7 is a schematic illustration of a first plunger pump assembly inhalation;
FIG. 8 is a schematic illustration of the first plunger pump assembly drawing a second plunger pump assembly pushing a drug;
FIG. 9 is a schematic of a tank;
FIG. 10 is a schematic view of a top cover;
FIG. 11 is a schematic view of an evaporation seat;
FIG. 12 is a schematic view of a lower valve plate;
FIG. 13 shows a first schematic view of the upper valve plate
FIG. 14 is a second schematic view of the upper valve plate.
Drawing reference numerals
1. Base 2, medicine storage tank 3 and air supplementing pipe
4. Evaporation module 2-1, tank 2-2 and liquid level column
2-3 parts of a medicine cover 2-4 parts of an electromagnetic valve 2-5 parts of a joint I
2-6, an electronic liquid level meter 2-7, a second joint 2-8 and a top cover
2-9, a medicine discharging knob 2-10, a medicine discharging port 2-11 and screw holes
2-12, a medicine sucking port 2-13, a medicine injecting port 4-1 and an evaporating seat
4-2, a floating joint 4-3, a linear motor connecting seat 4-4 and a linear motor
4-5, a second encoder 4-6, a rotating motor 4-7, and a rotating motor connecting seat
4-8, fresh gas inlet 4-9, mixed gunpowder gas outlet 4-10 and third joint
4-11, a third joint 4-11, a fourth joint 4-12, and a temperature sensor
4-13, a concentration regulator 4-14, a lower valve plate 4-15, an upper valve plate
4-16, thrust bearing 4-17, connecting shaft 4-18 and sealing sleeve
4-19, a first plunger rod 4-20, a first flat air passage opening 4-21 and a second flat air passage opening
4-22, second plunger rod
Detailed Description
The technical scheme provided by the invention is further described below by combining with the embodiment.
The automatically controlled evaporimeter that this embodiment provided uses double plunger pump assembly to realize supplying medicine in succession, and when one plunger pump assembly realized pushing away the medicine promptly, another plunger pump assembly was inhaled the gunny into the plunger chamber from the medicine storage jar. The plunger rod and the plunger cavity are vertically arranged, and the upper end and the lower end of the side wall of the plunger cavity of each plunger pump assembly are provided with medicine inlet and outlet pipe orifices. The medicine inlet and outlet of the two plunger pump assemblies are controlled to be connected and disconnected by controlling the rotation angle of the switching valve, so that the medicine sucking and pushing functions of the plunger pump assemblies are realized. Meanwhile, the upper pipe orifice and the lower pipe orifice of the plunger pump assembly discharge redundant gas into the medicine storage tank through the high-low liquid level difference, so that the pushed gunpowder is ensured to contain no bubbles, and the flow of liquid gunpowder is ensured. The anesthetic pushed out by the plunger pump assembly can enter the evaporation chamber, and fresh gas is mixed with liquid anesthetic through the evaporation chamber and is completely evaporated, so that anesthetic mixed gas with certain concentration is realized.
As shown in fig. 1, includes: the medicine storage tank comprises a base 1, a medicine storage tank mechanism 2, an air supplementing pipe 3 and an evaporation module 4; the medicine storage tank mechanism 2 and the evaporation module 4 are fixed on the base, and a tank body 2-1 of the medicine storage tank mechanism 2 is connected with a fresh gas inlet 4-8 of the evaporation module 4 through a gas supplementing pipe 3;
the evaporation module 4 includes: the device comprises a rotating motor 4-4, a switching valve, a linear motor 4-4, a plunger pump medicine injection mechanism and an evaporation mechanism; the rotating motor 4-4 controls the switching valve to rotate, and the on-off of the medicine inlet and the medicine outlet of the medicine injection mechanism of the plunger pump is controlled through the rotating angle; the linear motor 4-4 controls the plunger rod of the plunger pump medicine injection mechanism to move up and down in the plunger cavity, so that medicine is sucked from the medicine storage tank mechanism and pushed to the evaporation mechanism; the anesthetic liquid is evaporated into a gas state in an evaporation cavity of the evaporation mechanism, and is proportioned with fresh gas to output mixed anesthetic gas with preset concentration.
As shown in fig. 2 and 3, the medicine tank mechanism 2 includes: the medicine tank comprises a tank body 2-1, a liquid level column 2-2, a medicine cover 2-3, an electromagnetic valve 2-4, a first connector 2-5, an electronic liquid level meter 2-6, a second connector 2-7, a top cover 2-8, a medicine discharging knob 2-9, a medicine discharging port 2-10, a screw hole 2-11, a medicine sucking port 2-12 and a medicine injecting port 2-13.
As shown in the schematic diagram of the tank body in fig. 9, a circular arc groove is formed right in front of the tank body 2-1, a blind hole is formed above the circular arc groove, a through hole is formed below the circular arc groove, the liquid level column 2-2 penetrates through the through hole below the tank body 2-1 until the blind hole above is abutted, and then is connected with the through hole below through a screw, so that the liquid level column is fixed in the circular arc groove of the tank body 2-1. As shown in the isometric view of the drug storage canister mechanism of fig. 2, the fluid column 2-2 and the canister 2-1 are sealed by a seal canister and a gasket.
As shown in the schematic diagram of the top cover in FIG. 10, circular stepped holes and triangular mounting seats are respectively formed right above the top covers 2-8, four stepped holes are formed in the periphery of the triangular mounting seats for screw assembly, and a circle of sealing grooves are formed in the back of the triangular mounting seats. The specific assembly relation is as follows: an electronic liquid level meter 2-6 is arranged in a circular groove above the top cover 2-8, and the electronic liquid level meter 2-6 is fixed in the circular groove through a screw; the triangular mounting seat above the top cover 2-8 is respectively connected with the medicine injection port 2-13 and the electromagnetic valve 2-4 through screws. The triangle above the top cover 2-8 is also connected with the first joint 2-5 and the second joint 2-7 respectively. The first connector 2-5 is connected with a pressure sensor on the main control board through a pipeline, and the pressure sensor monitors the pressure in the tank body 2-1 in real time through the first connector 2-5; the second connector 2-7 is connected with a fourth connector 4-11 in the evaporation module 4 through the connecting pipe 3, and the on-off of the electromagnetic valve 2-4 can control fresh gas entering through the fresh gas inlet 4-8 to flow into the medicine storage tank through the fourth connector 4-11 and the second connector 2-7.
As shown in the isometric view of the medicine storage tank mechanism in FIG. 2, a knob hole and a threaded hole are respectively formed in the side and the lower side of the medicine storage tank mechanism 2, the medicine discharging knob 2-9 is arranged in the knob hole of the mounting seat, and the medicine discharging port 2-10 is arranged in the threaded hole in the lower side. The front end of the medicine discharging knob 2-9 is provided with a conical sealing gasket, the middle is provided with an O-shaped sealing ring, and the rear end is provided with threads. The anesthetic in the medicine storage tank can be discharged to the outside through the medicine discharging port 2-10 by adjusting the medicine discharging knob 2-9. The medicine storage tank mechanism is provided with a medicine suction port 2-12, and is used as a pipeline channel for connecting the tank body 2-1 and the plunger pump, and the first plunger pump component and the second plunger pump component suck out anesthetic from the tank body through the medicine suction port 2-12.
As shown in fig. 4 to 8, the evaporation module 4 includes: the evaporation seat 4-1, the floating joint 4-2, the linear motor connecting seat 4-3, the linear motor 4-4, the second encoder 4-5, the rotary motor 4-6, the rotary motor connecting seat 4-7, the fresh gas inlet 4-8, the mixed gunpowder gas outlet 4-9, the third joint 4-10, the fourth joint 4-11, the temperature sensor 4-12, the concentration regulator 4-13, the lower valve plate 4-14, the upper valve plate 4-15, the thrust bearing 4-16, the connecting shaft 4-17, the sealing sleeve 4-18, the first plunger rod 4-19, the first flat air passage opening 4-20, the second flat air passage opening 4-21 and the second plunger rod 4-19.
As shown in the schematic diagram of the evaporation seat in FIG. 11, two deep cavities, namely plunger cavities of two plunger pump assemblies, are formed at one end of the evaporation seat 4-1, the left plunger pump assembly and the right plunger pump assembly are symmetrically arranged, and taking the left plunger pump assembly as an example, a sealing sleeve 4-18 and a first plunger rod 4-19 are arranged in the plunger cavities, wherein an inner ring of the sealing sleeve 4-18 is connected with the first plunger rod 4-19 through a sealing ring, and an outer ring of the sealing sleeve 4-18 is connected with a cavity boss of the evaporation seat 4-1 through a sealing ring. As can be seen from the isometric view of the evaporation module of fig. 4 and the sectional view of the evaporation module of fig. 5, the first plunger rod 4-19 is connected to one of the protruding shafts of the linear motor 4-4 via the floating joint 4-2, and the linear motor 4-4 is connected to the evaporation seat 4-1 via the linear motor connection seat 4-3 by means of screws. The telescopic movement of the first plunger rod 4-19 is powered by a linear motor 4-4. The right plunger pump assembly has the same structure as the left plunger pump assembly, and will not be described again here. The linear motor 4-4 is provided at its top end with a first encoder by which the distance of its movement can be fed back in real time in order to carry out a precise control of the movement of the first plunger rod 4-19 and the second plunger rod 4-22. The evaporation seat 4-1 is provided with two sets of plunger pump components which are matched with each other to ensure the continuity of the output of the gunpowder.
Wherein, the front end of the evaporation seat 4-1 is provided with a circular trimming groove, and the bottom of the groove is provided with two flat air passage holes and 5 small holes. Wherein, the first flat air passage opening 4-20 is communicated with the fresh air inlet 4-8, and the second flat air passage opening 4-21 is communicated with the mixed gunpowder air outlet 4-9. A square boss is arranged between the first flat air passage hole and the second flat air passage hole 4-21, as shown in the schematic diagram of the lower valve plate in FIG. 12, and is inserted into the groove of the lower valve plate 4-14 and a certain gap is reserved between the square boss and a row of small holes at the bottom of the groove of the lower valve plate 4-14. After the gunpowder flows into the space between the boss and the evaporation seat 4-1 from the small hole, the fresh gas is mixed with the gunpowder through the first flat air passage port 4-20 from the fresh gas inlet 4-8, and the air flow speed flowing through the space is very high due to the small gap between the boss and the small hole of the lower valve plate 4-14, so that the evaporation speed of the gunpowder is accelerated. Fresh gas is mixed with the gunpowder and then passes through the second flat air passage port 4-21 to the mixed gunpowder gas outlet port 4-9, so that the quick evaporation of the gunpowder in the evaporator is realized.
The concentration regulator 4-13 is arranged between the second flat air passage opening 4-21 in the evaporation seat 4-1 and the mixed gunpowder gas outlet 4-9 and is used for regulating the size of the cross section area of the fluid passage between the second flat air passage opening 4-21 and the mixed gunpowder gas outlet 4-9, the gap between the second flat air passage opening 4-21 and the mixed gunpowder gas outlet 4-9 is regulated by regulating the concentration regulator 4-13, when the gap is reduced, the flow speed is increased again, if the liquid level of the gunpowder flowing out from the small hole at the bottom of the groove of the lower valve plate 4-14 is not completely evaporated, and the residual gunpowder liquid can be accelerated to evaporate again after passing through the narrow gap of the concentration regulator 4-13.
Since the temperature of the evaporator 4-1 gradually decreases with the heat absorption during the evaporation of the anesthetic liquid, the real-time temperature of the evaporation seat 4-1 is monitored by the temperature sensor 4-12.
The lower valve plate 4-14 is connected and installed with the evaporation seat 4-1 through a sealing gasket, and X is shown in the schematic diagram of the evaporation seat in FIG. 11 ′ 1 hole, X ′ 2 holes, X ′ 3 holes, X ′ 4 wells and X ′ The holes 5 are respectively in one-to-one correspondence with the holes X1, the holes X2, the holes X3, the holes X4 and the holes X5 shown in the schematic diagram of the lower valve plate in FIG. 12. The connecting parts of the evaporation seat 4-1 and the lower valve plate 4-14 are provided with trimming edges, thereby realizing the blind insertion positioning function and aligning the blind insertion with X ′ 1 hole, X ′ 2 holes, X ′ 3 holes, X ′ 4 wells and X ′ 5 wells with X1, X2, X3, X4 and X5 wells. Description of the connection of the 5 small holes of the evaporation seat 4-1 described above:
as shown in fig. 6-9:
X ′ the hole 1 is communicated with the hole Y1 of the evaporation seat 4-1 through a first internal pipeline of the evaporation seat 4-1, and the hole Y1 is connected with a medicine storage tank mechanism;
X ′ the 2 holes are communicated with the opening hole on the first plunger cavity of the left plunger pump assembly through a second inner pipeline of the evaporation seat 4-1;
X ′ the 3 holes are communicated with the lower opening of the first plunger cavity of the assembly of the first plunger pump assembly through a third inner pipeline of the evaporation seat 4-1;
X ′ the 4 holes are communicated with an opening on a second plunger cavity of the second plunger pump assembly through a fourth internal pipeline of the evaporation seat 4-1;
X ′ the 5 holes are communicated with a lower opening of a second plunger cavity of the second plunger pump assembly through a fifth inner pipeline of the evaporation seat 4-1;
as shown in fig. 4-5, an upper valve plate 4-15, a thrust bearing 4-16, a connecting shaft 4-17, a spring, a rotating motor connecting seat 4-7, a rotating motor 4-6 and a second encoder 4-5 are sequentially connected above a lower valve plate 4-14. Specifically, the spring is clamped between the rotating motor connecting seat 4-7 and the thrust bearing 4-16, and the compression force of the spring is sequentially transmitted to the thrust bearing 4-16, the upper valve plate 4-15 and the lower valve plate 4-14, so that the upper valve plate 4-15 and the lower valve plate 4-14 are tightly attached together to play a role in sealing.
As shown in the first schematic diagram of the upper valve plate in fig. 13 and the second schematic diagram of the upper valve plate in fig. 14:
an I-shaped groove is formed in one surface of the upper valve plate 4-15, an inner layer and an outer layer of the I-shaped groove are arc-shaped grooves, the center points of the inner layer and the outer layer of the arc-shaped grooves are connected through a straight groove, and the lower valve plate 4-14 can respond to the connection and disconnection of a valve port by rotating the upper valve plate 4-15, so that the specific working process is described below.
As shown in fig. 5 and 14, two straight grooves are formed in the side wall of the upper valve plate 4-15, matched straight flanges are arranged on the outer outline of the upper valve plate 4-17, and the connecting shaft 4-17 and the upper valve plate 4-15 are matched with the grooves through the flanges, so that torque transmission can be achieved. The inner hole of the connecting shaft 4-17 is matched with the motor shaft, the rotating motor 4-6 is controlled to rotate at any angle of the upper valve plate 4-15, and the second encoder 4-5 is used for realizing the accurate positioning function of the upper valve plate 4-15.
The specific working process of the electric control evaporator is described as follows:
1. charging:
the medicine cover 2-3 is opened, anesthetic is injected into the medicine storage tank mechanism 2 through the medicine injection port 2-13, the liquid level condition in the tank can be observed manually through the liquid level column 2-2, and meanwhile, the electronic liquid level meter 2-6 can monitor the height of the liquid level in real time. After the anesthetic is filled, a medicine cover is screwed on for 2-3.
2. Initializing:
the plunger rods of the left and right plunger pump assemblies move to the bottommost end, and the switching valve returns to the 0 position as shown in the zero position schematic diagram of the switching valve in fig. 6.
3. And (3) discharging bubbles:
after the gunpowder is introduced, a large amount of air exists in the pipeline of the evaporation seat 4-1 and parts thereof, and the air in the pipeline needs to be discharged so as to ensure that all the liquid for anesthesia is pushed when the plunger pump works. The specific working process is as follows: the left plunger pump is taken as an example, the second plunger pump component is similar, the rotating motor 4-6 is controlled to rotate clockwise by a certain angle, the arc-shaped groove of the upper valve plate 4-15 connects the X1 hole and the X2 hole, and other pipe orifices are in a closed state, at the moment, the first plunger rod 4-19 of the left plunger pump component is controlled to move up and down, and anesthetic in the medicine storage tank mechanism 2 of the medicine storage tank can be pumped into the first plunger cavity of the first plunger pump component. Due to the action of gravity, the gunpowder entering the first plunger cavity immediately sinks into the bottom of the first plunger cavity of the first plunger pump assembly, and bubbles exist at the upper part of the first plunger cavity. The gas in the first plunger cavity can be completely returned to the medicine storage tank mechanism 2 of the medicine storage tank after the operation is repeated for a plurality of times. At this time, the air bubble discharge is not thorough, because the air in the pipeline below the first plunger cavity, namely the pipeline connecting the lower opening of the first plunger cavity and the X3 hole, cannot be discharged, at the moment, the upper valve plate 4-15 is controlled to return to the 0 position again, the circular arc-shaped groove of the upper valve plate 4-15 is communicated with the pipeline of the X2 hole and the pipeline of the X3 hole after returning to the 0 position, and at the moment, the gunpowder in the first plunger cavity can fill the pipeline corresponding to the whole X3 hole. At this time, the upper valve plate 4-15 is rotated to the position shown in fig. 7, and then the first plunger rod 4-19 is reciprocated to remove the gas in the pipeline. Based on the exhaust principle of the first plunger pump assembly, the similar steps are performed, so that the gas in the second plunger pump assembly can be exhausted completely. 4. And (3) controlling the evaporation process of the gunpowder:
when steps 1, 2 and 3 are completed, the first and second plunger pump assemblies are filled with the gunny, i.e. the first plunger rod 4-19 and the second plunger rod 4-22 are at the topmost positions, and the upper valve sheet 4-15 is also in the 0-position state as shown in the zero position schematic diagram of the switching valve in fig. 6.
Taking the second plunger pump assembly for medicine pushing as an example, when small concentration output is needed, the rotating motor 4-6 drives the upper valve plate 4-15 to the position shown in fig. 8, namely, the inner arc-shaped groove at the right lower side of the upper valve plate 4-15 covers one small hole at the bottom of the groove of the lower valve plate 4-14, and at the moment, the second plunger rod 4-22 of the second plunger pump assembly is pushed to push a certain amount of gunny medicine according to a certain speed. If the high-concentration gunpowder is needed, the upper valve plate 4-15 can be driven to continuously rotate for a certain angle, so that the inner arc-shaped groove at the right lower side of the upper valve plate 4-15 covers more small holes at the bottom of the groove of the lower valve plate 4-14, and the high-flow gunpowder can pass through more smoothly. As can be seen from the drawing of the left plunger drug-sucking right plunger drug-sucking of fig. 8, no matter how the upper valve plate 4-15 covers the small holes at the bottom of the grooves of the lower valve plate 4-14, the X2 hole and the X1 hole are always communicated, and the X3 hole and the X4 hole are in a closed state, so that the first plunger pump assembly can suck the drug while the second plunger pump assembly pushes the drug. On the contrary, when the upper valve plate rotates in the opposite direction, the medicine pushing of the first plunger pump assembly and the medicine sucking of the second plunger pump assembly can be completed. Therefore, the mutual alternate movement of the two plunger pumps can realize the continuous medicine supply function of the gunpowder.
5. Ending
When the output of mixed gunpowder gas is required to be stopped, the gunpowder in the left second plunger pump assembly is required to be pushed back to the medicine storage tank, namely medicine is required to flow back. Taking a first plunger pump assembly as an example: when pushing the first plunger cavity the upper valve plate 4-15 needs to be rotated to the position shown in fig. 7 and the first plunger rod 4-19 is then pushed to the bottom end. Similarly, the drug return of the second plunger pump assembly can be accomplished by rotating the upper valve plate 4-15 in the opposite direction as shown in fig. 7, and following the procedure described above.
When the two plunger pump assemblies finish medicine reflux, all the pipe orifices can be closed by rotating the upper valve plate 4-15 to 0 position, namely the position shown in fig. 6, so that the accidental outflow of gunpowder is avoided.
From the above detailed description of the invention, it can be seen that the electronically controlled vaporizer provided by the invention achieves accurate control and rapid response of anesthetic concentration. The electric control evaporator provided by the invention controls the speed of preparing and pushing anesthetic liquid to control the volume of the anesthetic, the incompressibility of the liquid volume is utilized to improve the accuracy of the concentration of the output anesthetic, the influence of temperature, air pressure and the like on the liquid anesthetic can be ignored, the linear motor is utilized to accurately control the speed of pushing the plunger pump, and the output anesthetic is evaporated immediately after being mixed with fresh air, so that the determined concentration of the anesthetic is obtained. If the gunny gas with different concentrations under different flow rates is needed, only the flow rate of the fresh gas and the pushing speed of the plunger pump are required to be controlled. In addition, the invention only uses one switching valve, and controls the on and off of the medicine inlet and outlet of the two plunger pump assemblies by controlling the rotation angle of the switching valve, so as to realize the functions of sucking and pushing medicine of the plunger pump assemblies, and when one plunger pump assembly sucks medicine, the other plunger pump assembly can push medicine at the same time; and only one switching valve is used, so that the assembly difficulty is small, the number of points to be sealed is small, and the cost is low, therefore, the structure is simple, the processing production is facilitated, and the production is easy. The plunger rod is placed in the plunger cavity to push and suck medicine, the plunger rod is contacted with anesthetic liquid, the plunger rod cannot swell due to the anesthetic liquid, and the service life is long.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and are not limiting. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the appended claims.

Claims (8)

1. An electrically controlled evaporator comprising: the medicine storage tank mechanism is used for containing anesthetic liquid and the evaporation mechanism is used for enabling the anesthetic liquid to be evaporated into a gas state and be proportioned with fresh gas to output mixed anesthetic gas with preset concentration, and is characterized in that the electric control evaporator further comprises: the first plunger pump component, the second plunger pump component, the upper valve plate (4-15) and the lower valve plate (4-14), wherein,
the evaporation mechanism includes: the evaporation seat (4-1) is vertically provided with a first deep cavity and a second deep cavity, the first deep cavity is used as a first plunger cavity of the first plunger pump assembly, and the second deep cavity is used as a second plunger cavity of the second plunger pump assembly;
a first plunger rod (4-19) of the first plunger pump assembly moves up and down in the first plunger cavity under the control of a linear motor (4-4); the side wall of the first plunger cavity is provided with a first plunger cavity upper opening and a first plunger cavity lower opening; when the first plunger rod (4-19) moves upwards, the first plunger cavity is in a negative pressure state, and when the first plunger rod (4-19) moves downwards, the first plunger cavity is in a positive pressure state;
a second plunger rod (4-22) of the second plunger pump assembly moves up and down in a second plunger cavity under the control of a linear motor (4-4); the side wall of the second plunger cavity is provided with a second plunger cavity upper opening and a second plunger cavity lower opening; when the second plunger rod (4-22) moves upwards, the second plunger cavity is in a negative pressure state, and when the second plunger rod (4-22) moves downwards, the second plunger cavity is in a positive pressure state;
the upper valve plate (4-15) and the lower valve plate (4-14) are tightly attached to form a switching valve; the upper valve plate (4-15) rotates under the drive of the rotating motor (4-6), and the upper valve plate and the lower valve plate (4-14) are arranged between a tank body (2-1) of the medicine storage tank mechanism and an upper opening of the first plunger cavity, between an upper opening of the first plunger cavity and a lower opening of the first plunger cavity, between a lower opening of the first plunger cavity and an evaporation chamber of the evaporation mechanism, between the tank body (2-1) and an upper opening of the second plunger cavity, between an upper opening of the second plunger cavity and a lower opening of the second plunger cavity and/or between a lower opening of the second plunger cavity and an evaporation chamber of the evaporation mechanism, and fluid passages are respectively provided.
2. The electrically controlled evaporator according to claim 1, wherein a first sealing sleeve is arranged at the opening of the first plunger cavity, an outer ring of the first sealing sleeve is connected with the first plunger cavity through a sealing ring, and an inner ring is connected with a first plunger rod (4-19) through a sealing ring;
the opening of the second plunger cavity is provided with a second sealing sleeve, the outer ring of the second sealing sleeve is connected with the second plunger cavity through a sealing ring, and the inner ring is connected with a second plunger rod (4-22) through a sealing ring;
the first plunger rod (4-19) and the second plunger rod (4-22) are respectively connected with the extending shaft of the linear motor (4-4) through floating connectors; the linear motor (4-4) is provided with a first encoder for feeding back the movement distance of the extension shaft of the linear motor (4-4) in real time so as to realize accurate control of the movement of the first plunger rod (4-19) and the second plunger rod (4-22).
3. An electrically controlled evaporator according to claim 1, characterized in that the upper end of the evaporation seat (4-1) is provided with a circular cut-out groove, the bottom of which is provided with a groove bottomA first flat air port (4-20) and a second flat air port (4-21) are arranged, the first flat air port (4-20) is communicated with a fresh air inlet (4-8), and the second flat air port (4-21) is communicated with a mixed gunpowder air outlet (4-9); an evaporation seat boss is arranged between the first flat air passage opening (4-20) and the second flat air passage opening (4-21); x are circumferentially distributed near the inner edge of the bottom of the circular trimming groove ′ 1 hole, X ′ 2 holes, X ′ 3 holes, X ′ 4 wells and X ′ 5 holes; wherein,
the X is ′ The hole 1 is communicated with the hole Y1 of the evaporation seat (4-1) through a first internal pipeline of the evaporation seat (4-1), and the hole Y1 is connected with the medicine storage tank mechanism;
the X is ′ The 2 holes are communicated with the openings on the first plunger cavity of the first plunger pump assembly through a second inner pipeline of the evaporation seat (4-1);
the X is ′ The 3 holes are communicated with the lower opening of the first plunger cavity of the first plunger pump assembly through a third inner pipeline of the evaporation seat (4-1);
the X is ′ The 4 holes are communicated with an opening on a second plunger cavity of the second plunger pump assembly through a fourth inner pipeline of the evaporation seat (4-1);
the X is ′ The 5 holes are communicated with a lower opening of a second plunger cavity of the second plunger pump assembly through a fifth inner pipeline of the evaporation seat (4-1);
the lower valve plate (4-14) is provided with a round trimming boss corresponding to the round trimming groove of the evaporation seat (4-1) and is used for blind insertion positioning of the lower valve plate (4-14) and the evaporation seat (4-1); the round trimming boss is also provided with a plurality of grooves which are matched with the X ′ 1 hole, X ′ 2 holes, X ′ 3 holes, X ′ 4 wells and X ′ The 5 holes are in one-to-one correspondence with the X1 hole, the X2 hole, the X3 hole, the X4 hole and the X5 hole; the lower valve block (4-14) is provided with a lower valve block groove, the lower valve block groove covers the first flat air passage opening (4-20), the second flat air passage opening (4-21) and the evaporation seat boss, and a gap exists between the bottom surface of the lower valve block groove and the top surface of the evaporation seat boss; a gap between the bottom surface of the lower valve plate groove and the top surface of the evaporation seat boss is used as an evaporation chamber; the bottom of the lower valve block groove is also provided with a plurality of through holes in arc arrangementA hole;
the upper valve plate (4-15) is driven by a rotating motor (4-6) to rotate, and the upper valve plate (4-15) is symmetrically provided with a first I-shaped groove and a second I-shaped groove; the inner and outer grooves of the first I-shaped groove and the second I-shaped groove are arc-shaped, and the center points of the inner and outer grooves are connected by a straight groove; the outer layer groove radians of the first I-shaped groove and the second I-shaped groove are the same as the circumferential radians among the X1 hole, the X2 hole, the X3 hole, the X4 hole and the X5 hole; and the radian of the inner layer grooves of the first I-shaped groove and the second I-shaped groove is the same as the arrangement radian of the through holes.
4. An electrically controlled evaporator according to claim 3 wherein,
when the outer layer groove of the first I-shaped groove covers the X1 hole and the X2 hole, the first I-shaped groove provides a fluid channel between the X1 hole and the X2 hole, and anesthetic liquid sequentially passes through the Y1 hole, the first inner pipeline of the evaporation seat (4-1) and the X from the medicine storage tank mechanism ′ 1 hole, X1 hole, first I-shaped groove, X2 hole and X ′ The second inner pipeline of the 2-hole and evaporation seat (4-1) and the opening on the first plunger cavity flow into the first plunger cavity of the first plunger pump component;
when the outer layer groove of the first I-shaped groove covers the X2 hole and the X3 hole, the first I-shaped groove provides a fluid channel between the X2 hole and the X3 hole;
when the outer layer groove of the first I-shaped groove covers the X3 hole and the inner layer groove of the first I-shaped groove covers the through hole of the lower valve plate, the first I-shaped groove provides a fluid channel between the X3 hole and the through hole; the anesthetic liquid in the first plunger cavity sequentially passes through the lower opening of the first plunger cavity, the third inner pipeline of the evaporation seat (4-1) and the X ′ 3 holes, X3 holes, a first I-shaped groove and a through hole flow into the evaporation chamber;
when the outer layer groove of the second I-shaped groove covers the X1 hole and the X4 hole, the second I-shaped groove provides a fluid channel between the X1 hole and the X4 hole, and anesthetic liquid sequentially passes through the Y1 hole, the first inner pipeline of the evaporation seat (4-1) and the X from the medicine storage tank mechanism ′ 1 hole, X1 hole, second I-shaped groove, X4 hole and X ′ 4-hole and evaporation seat(4-1) the fourth internal conduit and the opening in the second plunger chamber flowing into the second plunger chamber;
when the outer layer groove of the second I-shaped groove covers the X4 hole and the X5 hole, the second I-shaped groove provides a fluid channel between the X4 hole and the X5 hole;
when the outer layer groove of the second I-shaped groove covers the X5 hole and the inner layer groove of the second I-shaped groove covers the through hole of the lower valve plate, the second I-shaped groove provides a fluid channel between the X5 hole and the through hole; anesthetic liquid in the second plunger cavity sequentially passes through the lower opening of the second plunger cavity, the fifth inner pipeline of the evaporation seat (4-1) and X ′ The 5 holes, the X5 holes, the second I-shaped grooves and the through holes flow into the evaporation chamber.
5. An electrically controlled evaporator according to claim 3, characterized in that the first flat air port (4-20) is in communication with a fresh air inlet (4-8), and the second flat air port (4-21) is connected with a mixed gunpowder air outlet (4-9); and the gunny liquid in the first plunger cavity or the second plunger cavity flows into a gap between the lower valve plate groove and the evaporation seat boss through the through hole and is evaporated, and the evaporated gunny gas is mixed with fresh gas flowing in through the fresh gas inlet (4-8) and then is output through the mixed gunny gas outlet (4-9).
6. An electrically controlled evaporator according to claim 3, characterized in that a concentration regulator (4-13) is arranged between the second flat air passage opening (4-21) and the mixed gunpowder air outlet (4-9) for regulating the cross-sectional area of the fluid passage between the second flat air passage opening (4-21) and the mixed gunpowder air outlet (4-9).
7. An electrically controlled evaporator according to claim 3, wherein an upper valve plate (4-15), a thrust bearing (4-16), a connecting shaft (4-17), a spring, a rotating motor connecting seat (4-7), a rotating motor (4-6) and a second encoder (4-5) are arranged above the lower valve plate (4-14) in sequence; wherein,
the spring is clamped between the rotating motor connecting seat (4-7) and the thrust bearing (4-16), and the compression force of the spring is sequentially transmitted to the thrust bearing (4-16), the upper valve plate (4-15) and the lower valve plate (4-14), so that the upper valve plate (4-15) and the lower valve plate (4-14) are tightly attached;
the upper valve plate (4-15) is coupled with the connecting shaft (4-17), and a motor shaft of the rotating motor drives the upper valve plate (4-15) to rotate through the connecting shaft (4-17) so as to realize torque transmission;
the second encoder (4-5) is used for positioning the rotation angle of the upper valve plate (4-15).
8. The electrically controlled vaporizer of claim 1, wherein the canister mechanism comprises: the liquid level meter comprises a tank body (2-1), a liquid level column (2-2), an electronic liquid level meter (2-6), a pressure sensor and an electromagnetic valve (2-4); wherein,
the tank body (2-1) comprises: a drug injection port (2-13) for injecting anesthetic and a drug discharge port (2-10) for discharging the anesthetic to the outside; the medicine injection port (2-13) is provided with a medicine cover (2-3), and the opening and closing of the medicine discharge port (2-10) is controlled by a medicine discharge knob (2-9); the tank body (2-1) further comprises: the medicine sucking port (2-12), and the tank body (2-1) is communicated with the first plunger pump assembly or/and the second plunger pump assembly through the medicine sucking port (2-12).
The liquid level column (2-2) is communicated with the tank body (2-1) and is used for manually observing the liquid level height of the tank body (2-1);
the electronic liquid level meter (2-6) is used for monitoring the liquid level height of the tank body (2-1) in real time;
the pressure sensor is used for monitoring the pressure in the tank body (2-1) in real time;
the electromagnetic valve (2-4) is used for controlling the communication between the tank body (2-1) and the fresh gas inlet (4-8), wherein the tank body (2-1) is connected with the fresh gas inlet (4-8) through the gas supplementing pipe (3).
CN202311333841.XA 2023-10-16 2023-10-16 Electric control evaporator Pending CN117442840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311333841.XA CN117442840A (en) 2023-10-16 2023-10-16 Electric control evaporator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311333841.XA CN117442840A (en) 2023-10-16 2023-10-16 Electric control evaporator

Publications (1)

Publication Number Publication Date
CN117442840A true CN117442840A (en) 2024-01-26

Family

ID=89586528

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311333841.XA Pending CN117442840A (en) 2023-10-16 2023-10-16 Electric control evaporator

Country Status (1)

Country Link
CN (1) CN117442840A (en)

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