CN218129532U

CN218129532U - Anesthetic vaporizer and anesthesia machine

Info

Publication number: CN218129532U
Application number: CN202220116155.1U
Authority: CN
Inventors: 罗才瑾; 邬学涛
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-12-27
Anticipated expiration: 2032-01-17

Abstract

The embodiment of the application provides an anesthesia evaporator and an anesthesia machine, the anesthesia evaporator comprises a medicine pool assembly and a base assembly, the base assembly comprises a bottom plate, a power module arranged on the bottom plate and a liquid baffle plate positioned above the power module, the medicine pool assembly is positioned above the liquid baffle plate, a liquid discharging part is arranged on the bottom plate, and a drainage part capable of draining liquid on the top surface of the liquid baffle plate to the liquid discharging part is correspondingly arranged on the liquid baffle plate; in addition, set up drainage portion on the fender liquid board, set up drainage portion on the bottom plate, the liquid on the fender liquid board can be discharged via drainage portion on the bottom plate, adopts as above structure after, it is better to prevent the liquid effect, and power module can have better design flexibility.

Description

Anesthetic vaporizer and anesthetic machine

Technical Field

The application relates to the technical field of medical equipment, in particular to an anesthetic vaporizer and an anesthetic machine.

Background

Anesthetic vaporizers are an important component of anesthesia machines. The principle of the anesthetic vaporizer is that the anesthetic is heated to vaporize the liquid anesthetic into gas, and the gas is mixed with a certain amount of carrier gas to form a gas flow of anesthetic vapor with a certain concentration, and the gas flow enters a breathing loop.

The inside of anesthetic vaporizer is provided with power module for to anesthetic vaporizer complete machine distribution electric power, because power module inserts the commercial power, the voltage is higher, consequently, need prevent liquid to handle power module.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present application are directed to an anesthetic vaporizer and an anesthetic machine, which enable a power module to have a better liquid-proof performance.

The embodiment of the application provides an anesthetic vaporizer, includes:

a drug reservoir assembly;

the base assembly comprises a bottom plate, a power module arranged on the bottom plate and a liquid baffle plate positioned above the power module, and the medicine pool assembly is positioned above the liquid baffle plate;

the bottom plate is provided with a drainage part, and the liquid baffle plate is correspondingly provided with a drainage part which can drain liquid on the top surface of the liquid baffle plate to the drainage part.

In an embodiment, in a top view projection of the anesthetic vaporizer, a projection of the power module is located within a projection range of the liquid baffle.

In one embodiment, the bottom plate is provided with a liquid guiding groove and a liquid discharging port which are communicated with each other, the liquid guiding groove and the liquid discharging port form the liquid discharging portion, and the liquid discharging port penetrates through the lower side surface of the bottom plate so that liquid guided to the liquid guiding groove by the liquid discharging port is discharged from the lower portion of the bottom plate.

In an embodiment, a shoulder is arranged on the top surface of the liquid baffle, the shoulder is arranged around the edge of the liquid baffle, the liquid baffle is provided with a liquid outlet, the shoulder and the liquid outlet form the drainage part, and liquid in an area surrounded by the top surface of the liquid baffle and flowing to the liquid guide groove through the liquid outlet.

In one embodiment, the edge of the liquid baffle is turned over upwards to form the liquid blocking shoulder, a partial part of the liquid baffle is turned over downwards in an inclined mode to form a liquid guide sheet, and the liquid blocking shoulder is broken at the liquid guide sheet to limit the liquid outlet;

or the liquid blocking shoulder forms a closed loop structure in the length direction, and the liquid outlet is located on the inner side of the liquid blocking shoulder and penetrates through the liquid blocking plate in the vertical direction.

In an embodiment, the position of the liquid outlet is located outside a top view projection of the power module.

In an embodiment, the liquid discharge port is disposed on a tank bottom of the liquid guide tank, the tank bottom includes an inclined surface connected to at least one side edge of the liquid discharge port, and the inclined surface extends obliquely upward in a direction from the side edge of the liquid discharge port to a direction away from the side edge of the liquid discharge port.

In one embodiment, the whole circumferential edge of the liquid discharge port is connected with the inclined surfaces, and all the inclined surfaces form a frustum-shaped structure.

In one embodiment, the liquid discharge port comprises a first sub-hole and a second sub-hole positioned below the first hole, and the first sub-hole and the second sub-hole are communicated with each other; in a top projection of the base plate, a projection of the first sub-hole and a projection of the second sub-hole partially overlap and are partially offset.

In one embodiment, the bottom surface of the drug pool assembly is higher than the top surface of the liquid baffle plate and is not pressed against the liquid baffle plate; the power supply module is detachably connected with the bottom plate, and the power supply module can be drawn out from the lower part of the medicine pool assembly independently or together with the liquid baffle plate.

In one embodiment, the anesthetic vaporizer comprises an air path block assembly located above the medicine pool assembly, the bottom plate is further provided with a support convex column, the top end of the medicine pool assembly is connected with the air path block assembly, and the bottom end of the medicine pool assembly is supported on the support convex column.

In one embodiment, the base assembly comprises a support plate extending towards the side where the air passage block assembly is located, and the anesthetic vaporizer further comprises a valve seat assembly juxtaposed with the air passage block assembly above the drug pool assembly;

the lower end of the air circuit block assembly is installed to the support plate and is connected to the air circuit block assembly through the valve seat assembly.

In one embodiment, the base assembly comprises a mounting seat arranged at the rear end of the bottom plate and two support plates arranged on the mounting seat, the two support plates are arranged at intervals along the left and right direction of the mounting seat, and the medicine pool assembly is arranged between the two support plates.

In one embodiment, a first gap is formed between the side surfaces of the left side and the right side of the medicine pool component and the support plate.

In one embodiment, the anesthetic vaporizer includes an air passage block assembly positioned above the drug reservoir assembly with a second gap between a top surface of the drug reservoir assembly and the air passage block assembly.

In one embodiment, a third gap is formed between the bottom surface of the medicine pool assembly and the top surfaces of the liquid baffle plate and the mounting seat.

In one embodiment, the base assembly includes a mounting seat, a battery cavity for accommodating a battery is formed inside the mounting seat, the battery cavity is located on one side of the power module, the base assembly includes a battery socket electrically connected to the power module, and the battery socket is disposed on a side wall of the battery cavity close to the power module.

In one embodiment, the battery chamber is open at the bottom, and the battery can be loaded or unloaded through the opening.

In one embodiment, the anesthetic vaporizer comprises a handwheel assembly arranged above the gas circuit block assembly, the handwheel assembly comprises a handwheel and a magnetism isolating sheet arranged in the handwheel, the gas circuit block assembly is provided with a reed pipe and a magnet which are arranged at intervals, and when the handwheel is positioned at a zero position, the magnetism isolating sheet is positioned between the reed pipe and the magnet; when the magnetism isolating sheet rotates along with the hand wheel and rotates out of the position between the reed pipe and the magnet, the reed pipe is closed under the action of the magnetic force of the magnet, and a hand wheel switch signal is output.

According to the anesthetic vaporizer disclosed by the embodiment of the application, when liquid drops, the liquid drops on the liquid baffle plate and cannot drop on the power module, so that the protection effect on the power module can be improved; in addition, set up drainage portion on the liquid baffle, set up drainage portion on the bottom plate, the liquid on the liquid baffle can be got rid of via drainage portion on the bottom plate, adopts as above structure after, power module can have better design flexibility, for example, power module can not need to adopt totally enclosed encapsulation to improve power module's heat dispersion.

The embodiment of the application provides an anesthesia machine, which comprises

The main machine of the anesthesia machine is provided with an evaporator connecting seat and an air supply system;

and any embodiment of this application the anesthetic vaporizer, the anesthetic vaporizer is installed on the vaporizer connecting seat, gas supply system with the anesthetic vaporizer is connected, so that the anesthetic vaporizer can provide anesthetic gas to the patient through breathing the return circuit.

Drawings

FIG. 1 is an exploded view of an anesthetic vaporizer according to an embodiment of the present application;

FIG. 2 is a schematic, partially cross-sectional view of the assembled structure of FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 1 assembled with the front and rear housing halves omitted;

FIG. 4 is a schematic view from another perspective of FIG. 3;

FIG. 5 is a schematic view of a base assembly according to an embodiment of the present application;

FIG. 6 is a schematic view of the structure shown in FIG. 5 with a portion of the structure omitted;

FIG. 7 is a schematic view of the structure of FIG. 5 from another perspective;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

FIG. 9 is a schematic view of a liquid barrier according to an embodiment of the present disclosure;

FIG. 10 is a partial schematic view of the base plate of FIG. 7;

FIG. 11 is a top view of the base plate of FIG. 7;

FIG. 12 is a cross-sectional view taken along the line X-X in FIG. 11;

FIG. 13 is an enlarged partial view at B of FIG. 12;

fig. 14 is a schematic structural diagram of a power module and a liquid baffle according to an embodiment of the present application.

Description of the reference numerals

A base assembly 1; a base plate 11; a liquid guide groove 11a; a liquid discharge port 11b; a first sub-hole 11b'; a second sub-aperture 11b "; a support boss 111; a projection 1111; a first protrusion 112; a first through-hole 112a; a second projection 113; a second through hole 113a;

a liquid baffle 12; a shoulder 121; a liquid outlet 12a; a drainage sheet 122;

a power supply module 13; a power board 131; a sheet metal frame 132; an insulating cover 133; heat dissipation holes 133a;

a battery socket 14;

a mounting seat 15; a battery chamber 15a; a battery cover plate 151;

a bracket plate 16; screw holes 16a;

a battery 171; a power supply line 172; a power socket 173;

a first gap 1a; a second gap 1b; a third gap 1c;

a medicine pool component 2; a drug reservoir housing 21; a medicine tank 21a; an anesthetic vapor outlet 21b; a perfusion device 22;

a valve seat assembly 3;

an air passage block assembly 4; a reed switch 41; a magnet 42;

a hand wheel assembly 5; an upper cover 51; a hand wheel 52; a sheet metal pressing piece 521; a magnetism isolating sheet 522; a button 523;

an adapter block assembly 6;

a front half shell 71;

a rear half-shell 72; a hem 721;

an electric control board 8;

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The embodiment of the application provides an anesthetic vaporizer which is used for an anesthesia machine.

The anesthesia machine comprises an air supply system, a flow control system, an anesthesia evaporator and a breathing loop. Wherein, the gas supply system, the flow control system and the anesthesia evaporator form a main machine of the anesthesia machine after being integrated, and fresh gas is provided for the breathing loop.

The gas supply system is an important component of the anesthesia machine for providing gas flow and power for a patient, and the gas source of the anesthesia machine can be simultaneously provided with various gas sources such as oxygen, laughing gas, air and the like, wherein the mixed gas of the oxygen, the air and the helium and oxygen is diluent gas, and the laughing gas is anesthetic gas.

The flow control system delivers the flow controlled gas to the anesthetic vaporizer and the anesthetic circuit while preventing the formation and output of a low oxygen gas mixture.

The anesthetic vaporizer vaporizes the liquid anesthetic into anesthetic vapor by heating the anesthetic, and the anesthetic vapor is mixed with a certain amount of carrier gas to form a gas flow of anesthetic vapor with a certain concentration, and the gas flow enters the breathing circuit.

The breathing circuit is a ventilation system in which the anesthesia machine directly manages the mechanical ventilation and breathing gas of the patient.

Referring to fig. 1, the anesthetic vaporizer includes a drug pool assembly 2, a valve seat assembly 3, a base assembly 1, a gas path block assembly 4, a hand wheel assembly 5, and the like.

Illustratively, the cartridge assembly 2 includes a cartridge housing 21 and an infusion set 22. Referring to fig. 2, the housing 21 has a drug reservoir 21a, a drug adding hole, and an anesthetic vapor outlet 21b (see fig. 1), and an anesthetic bottle can add anesthetic to the drug reservoir 21a through the filling device 22. The anesthetic agent is volatilized in the drug reservoir 21a to be anesthetic vapor, and is discharged from the anesthetic vapor outlet 21 b.

The anesthetic vapor discharged from the anesthetic vapor outlet 21b flows through the valve seat assembly 3 and enters the air passage block assembly 4. The valve seat assembly 3 is used for stopping and conducting the flow of the anesthetic vapor, and is used for adjusting parameters such as the output flow rate and the pressure of the anesthetic vapor.

It will be appreciated that the reservoir assembly 2 and the airway block assembly 4 are each provided with heating means for maintaining the temperature of the reservoir and airway block assembly 4 within a set temperature range, for example within the range 38 ℃ to 48 ℃.

The gas circuit block assembly 4 has a fresh gas inlet, an anesthetic gas inlet, and a mixed gas outlet, and functions such as switching, flow control, gas mixing of the gas circuit can be realized inside the gas circuit block assembly 4. Specifically, fresh air flow enters the gas circuit block assembly 4 from a fresh air inlet; the anesthesia vapour that flows through valve seat subassembly 3 gets into in the gas circuit piece subassembly 4 from the anesthesia gas air inlet to through flow control back and fresh air current mixture, the air current after the mixture is discharged from the mist outlet, and this mist gets into in the anesthesia breathing circuit through adapter subassembly 6 afterwards.

The hand wheel component 5 is arranged above the air path block component 4, and the concentration of anesthetic vapor in the mixed gas can be adjusted by rotating the hand wheel component 5 by a user.

Referring to fig. 5, 6 and 7, the base assembly 1 includes a bottom plate 11 and a power module 13 disposed on the bottom plate 11.

The power module 13 distributes power for the anesthesia evaporator complete machine. Specifically, the power module 13 is connected to the commercial power, for example, 110V, 220V or 380V commercial power, through the power line 172 and the power socket 173. The mains supply is high-voltage strong electricity, so that the power module needs to have a good liquid-proof grade, such as water-proof, for preventing liquid from entering the interior of the anesthetic vaporizer or entering the power module to cause faults such as fire.

For this purpose, in the embodiment of the present application, the base assembly 1 includes a liquid baffle plate 12 located above the power module 13, wherein the medicine pool assembly 2 is located above the liquid baffle plate 12; in the plan view projection of the anesthetic vaporizer, the projection of the power module 13 is located within the projection range of the liquid baffle 12. That is to say, the region above power module 13 can be covered completely to liquid baffle 12, and when liquid drips, liquid can drip on liquid baffle 12, can not drip on power module 13, so can promote the protective effect to power module 13. In addition, after the liquid baffle plate 12 is adopted, the power module 13 may have better design flexibility, for example, the power module 13 may not be completely sealed, so as to improve the heat dissipation performance of the power module 13.

It can be understood that the power module 13 at least includes the power board 131, and various electronic components are integrated on the power board 131 to realize the functions of converting ac power into dc power and distributing the power of the power module 13.

To facilitate mounting the power module 13 on the bottom plate 11, referring to fig. 14, the power module 13 includes a sheet metal frame 132 and an insulating cover 133, and the insulating cover 133 is folded from a planar plate body to form a hexahedral box-shaped structure and encloses the power board 131 therein. The insulating cover 133 provides all-around insulation protection for the power board 131. It should be noted that, since the liquid blocking plate 12 has a good liquid-proof effect, the insulating housing 133 may be provided with a plurality of heat dissipation holes 133a to improve the heat dissipation performance of the power board 131.

The insulating cover 133 is fixed to the sheet metal frame 132, and the sheet metal frame 132 is fixed to the base plate 11.

The sheet metal frame 132 is formed by a sheet metal process, and thus, various required mounting structures can be easily manufactured in the manufacturing process.

For example, referring to fig. 14, the bent portions 1321 bent upward are formed on the left and right opposite sides of the sheet metal frame 132, the top of the bent portion 1321 is provided with an outward protruding ear plate 13211, the top surface of the insulating housing 133 is lower than the top end of the bent portion 1321, the liquid blocking plate 12 is supported on the bent portion 1321, and a screw passes through the liquid blocking plate 12 from top to bottom and is screwed into the ear plate 13211, so that the liquid blocking plate 12 can be mounted on the sheet metal frame 132, and the liquid blocking plate 12 and the power module 13 can be mounted on the bottom plate 11 together as an assembly whole and can also be dismounted together.

It should be noted that the power module 13 is detachably connected to the bottom plate 11, specifically, the power module 13 may be fixed by screwing screws in a horizontal direction, and screwing screws in an upward direction from below the bottom plate 11, and in addition, when the device is installed, the bottom surface of the liquid baffle 12 is higher than the top surface of the liquid baffle 2, and the liquid baffle 12 does not bear the acting force of the liquid baffle 2. That is, the reservoir assembly 2 does not press against the liquid barrier 12.

Like this, when dismantling power module 13, can not tear other spare parts such as medicine pond subassembly 2 open, only need will be used for the screw of fixed power module 13 to demolish the back, with power module 13 alone or together with keep off liquid board 12 and take out from medicine pond subassembly 2 below (for example the left side or the right side in medicine pond subassembly 2 below region) can. It should be noted that in other embodiments, the power module 13 includes a plastic supporting frame, and the power board 131 is mounted on the bottom plate 11 through the plastic supporting frame.

In order to realize the liquid discharging function, the bottom plate 11 is provided with a liquid discharging part, and the liquid baffle plate 12 is correspondingly provided with a drainage part which can drain the liquid on the top surface of the liquid baffle plate 12 to the liquid discharging part.

Illustratively, referring to fig. 7 and 8 in combination, the bottom plate 11 is provided with a liquid guiding groove 11a and a liquid discharging port 11b which are communicated with each other, the liquid guiding groove 11a and the liquid discharging port 11b form a liquid discharging part, the liquid guiding part of the liquid baffle plate 12 guides the liquid on the top surface thereof to the liquid guiding groove 11a, and the liquid discharging port 11b penetrates through the lower side surface of the bottom plate 11 to discharge the liquid in the liquid guiding groove 11a from the lower side of the bottom plate 11. Therefore, long-term liquid accumulation on the upper surface of the liquid baffle plate 12 can be avoided, and centralized liquid drainage under the bottom plate 11 is facilitated.

Referring to fig. 7, 9 and 14, for example, a shoulder 121 is disposed on the top surface of the liquid baffle 12, the shoulder 121 is disposed around the edge of the liquid baffle 12, the liquid baffle 12 is disposed with a liquid outlet 12a, the shoulder 121 and the liquid outlet 12a form a drainage portion, and the liquid in the area surrounded by the top surface of the liquid baffle 12 of the shoulder 121 flows to the liquid guiding groove 11a through the liquid outlet 12a. The shoulder 121 is used to block the liquid flowing downward from the peripheral edge of the liquid baffle 12, and specifically, the liquid dropping on the top surface of the liquid baffle 12 is collected by the shoulder 121 and flows to the liquid outlet 12a, and flows to the liquid guiding groove 11a on the bottom plate 11 through the liquid outlet 12a.

It will be understood that the liquid baffle 12 is convenient to collect the liquid at a position above the liquid guiding groove 11a, for example, the top surface of the liquid baffle 12 has a slope to guide the liquid to the liquid outlet 12a.

The stop shoulder 121 is formed in an unlimited manner. For example, a plurality of components are attached to the liquid blocking plate 12, and the plurality of components constitute the shoulder 121.

For example, in some embodiments, referring to fig. 7 and 8, the liquid baffle 12 is a sheet metal part, and the edge of the liquid baffle 12 is folded upwards to form the shoulder 121. Therefore, the structure is simple, the manufacture is convenient, and the cost is lower. Part of the liquid baffle 12 is turned downward and forms a liquid guiding sheet 122, and the liquid guiding sheet 122 is broken by the shoulder 121 to define the liquid outlet 12a. That is, in this embodiment, the shoulder 121 does not form a closed loop along the length direction, and the shoulder 121 is broken at the liquid outlet 12a.

In this embodiment, the liquid from the liquid outlet 12a flows along the liquid guiding sheet 122 and flows from the edge of the liquid guiding sheet 122 to the liquid guiding groove 11a, and the liquid guiding sheet 122 can better guide the liquid flow to the liquid guiding groove 11a.

In other embodiments, referring to fig. 9, the shoulder 121 forms a closed loop along the length direction, and the liquid outlet 12a is located inside the shoulder 121 and penetrates through the liquid baffle 12 along the vertical direction. It should be noted that the position of the liquid outlet 12a needs to be outside the top projection range of the power module 13, so that the liquid flowing out of the liquid outlet 12a does not contact the power module 13.

For example, referring to fig. 13, liquid discharge port 11b is disposed on the bottom of liquid guiding groove 11a, the bottom of the groove includes an inclined surface connected to at least one side edge of liquid discharge port 11b, and the inclined surface extends obliquely upward from the edge of liquid discharge port 11b to a direction away from the edge of liquid discharge port 11b. Because of the existence of the inclined surface, the water in the liquid guide groove 11a can flow into the liquid discharge port 11b more easily.

The whole circumferential edge of the liquid discharge port 11b is connected with inclined planes, and all the inclined planes form a frustum-shaped structure in a surrounding mode. That is, the liquid in the liquid guide groove 11a can be collected to the liquid discharge port 11b, facilitating the evacuation of the liquid.

The number of the liquid discharge ports 11b is not limited, and may be one or a plurality of.

Illustratively, liquid discharge port 11b includes a first sub-hole 11b ' and a second sub-hole 11b ″ located below the first hole, where first sub-hole 11b ' and second sub-hole 11b ″ communicate with each other, and liquid in liquid guide groove 11a flows to second sub-hole 11b ″ through first sub-hole 11b '. In the top projection of the bottom plate 11, the projection of the first sub-hole 11b' and the projection of the second sub-hole 11b ″ are partially overlapped and partially shifted.

Referring to fig. 5, 6 and 7, the base assembly includes a bracket plate 16 extending toward a side where the air passage block assembly 4 is located, and more specifically, the base assembly 1 includes a mounting seat 15 disposed at a rear end of the bottom plate 11, and the bracket plate 16 is two, and the two bracket plates 16 are mounted on the mounting seat 15, and the two bracket plates 16 are spaced apart from each other in a left-right direction of the mounting seat 15.

The mounting seat 15 may be formed integrally with the bottom plate 11, for example, by injection molding, or may be formed separately from the bottom plate 11 and assembled together.

The medicine pool component 2 is arranged between the two bracket plates 16; the lower end of the air passage block assembly 4 is mounted to the bracket plate 16. That is, the bracket plate 16 needs to carry the weight of the air path block assembly 4 and other components mounted on the air path block assembly 4.

The material of the support plate 16 is not limited as long as it has sufficient structural strength and rigidity. Illustratively, the carrier plate 16 is a sheet metal part, i.e., formed from a metal material by a cold working process.

Illustratively, referring to fig. 1, the anesthetic vaporizer includes an electronic control board 8, and the electronic control board 8 is mounted on a side of one of the bracket boards 16 facing away from the reservoir assembly 2.

The mounting manner of the air circuit block assembly 4 and the support plate 16 is not limited, and for example, referring to fig. 3 and 4, the lower end of the air circuit block assembly 4 extends into between the two support plates 16, and each support plate 16 is screwed into the air circuit block assembly 4 through at least two screws 100A to mount the air circuit block assembly 4 on the top end of the support plate 16.

For example, referring to fig. 3, 4, 7 and 10, the front end of the bottom plate 11 is provided with a supporting pillar 111, the bottom end of the medicine pool assembly 2 is supported at the top end of the supporting pillar 111, the top end of the medicine pool assembly 2 is connected with the air path block assembly 4, and specifically, the medicine pool assembly 2 is suspended below the air path block assembly 4. The support boss 111 and the gas circuit block assembly 4 form two stress points for the medicine pool assembly 2, that is, the gas circuit block assembly 4 bears part of the weight of the medicine pool assembly 2, and in addition, the other part of the weight of the medicine pool assembly 2 is borne by the support boss 111. Namely, the medicine pool component 2 can not generate acting force on the liquid baffle plate 12 and can not generate acting force on the mounting seat 15.

The stress point refers to a point which can be simplified from a mechanical model, and is not a point in a mathematical sense.

Illustratively, the bottom side of the reservoir assembly 2 is provided with a groove (not shown), the top end of the support boss 111 is provided with a protrusion 1111, and the protrusion 1111 is clamped into the groove to limit the reservoir assembly 2 in any horizontal direction, so as to prevent the reservoir assembly 2 from deflecting.

The manner in which the reservoir assembly 2 is connected below the air passage block assembly 4 is not limited.

Illustratively, referring to fig. 1, the valve seat assembly 3 is disposed above the drug reservoir assembly 2 in parallel with the air passage block assembly 4, and is connected to the top side of the drug reservoir assembly 2 by a plurality of screws 100B, and the valve seat assembly 3 is connected to the air passage block assembly 4 by a plurality of screws 100C, that is, the drug reservoir assembly 2 is mounted to the air passage block assembly 4 by the valve seat assembly 3, and the air passage block assembly 4 is mounted on the upper ends of the two support plates 16, so that the support plates 16 also need to bear the weight of the drug reservoir assembly 2.

For example, referring to fig. 2, a first gap 1a is formed between the lateral surfaces of the left and right sides of the cartridge assembly 2 and the support plate 16, that is, the lateral surfaces of the cartridge assembly 2 do not abut against the support plate 16.

Illustratively, referring to fig. 2, a second gap 1b is provided between the top surface of the reservoir assembly 2 and the gas circuit block assembly 4. That is, the top surface of the reservoir assembly 2 does not fully conform to the surface of the air passage block assembly 4.

Illustratively, referring to fig. 2, a third gap 1c is formed between the bottom surface of the reservoir assembly 2 and the top surface of the liquid baffle 12, and between the bottom surface of the reservoir assembly 2 and the top surface of the mounting seat 15, that is, the top surface of the reservoir assembly 2 does not abut against the liquid baffle 12, nor the top surface of the mounting seat 15.

It will be appreciated that in order to prevent the mains power from being lost and affecting the operation, the anesthetic vaporizer is generally provided with a battery 171, and the battery 171 may be a rechargeable battery, a dry cell battery, or the like.

The battery 171 is connected to the power module 13 through a wire, and the power module 13 manages and distributes the commercial power and the direct current of the battery 171.

For example, referring to fig. 5 and 6, the mounting base 15 has a battery cavity 15a for accommodating the battery 171, the bottom side of the battery cavity 15a is open, the battery 171 can be loaded or unloaded through the opening, and more specifically, the bottom side of the battery cavity 15a is open. When assembling, the battery 171 is put in from the bottom side of the battery cavity 15a, and the battery cover 151 is used to cover the opening of the battery cavity 15 a.

Battery cavity 15a is located the rear side of power module 13, and the base subassembly includes battery socket 14 with power module 13 electricity is connected, and battery socket 14 sets up on the preceding lateral wall of battery cavity 15a, and the binding post of battery socket 14 is located the one side of battery socket 14 towards battery cavity 15 a. Thus, the electric wire drawn from the battery 171 can be directly connected to the terminal of the battery receptacle 14, and a transfer wire is not required, which facilitates wiring and replacement of the battery 171.

Illustratively, referring to fig. 1, the anesthetic vaporizer includes a front half shell 71 and a rear half shell 72 that are mated in a front-to-rear direction.

Referring to fig. 3, 4, 7 and 10, a plurality of first protrusions 112 are disposed at the edge of the bottom plate 11, the plurality of first protrusions 112 have first through holes 112a extending in the vertical direction, and screws pass through the first through holes 112a from the lower side of the bottom plate 11 and are screwed into the front half shell 71. In this way, the front half shell 71 is fixed to the bottom plate 11.

Referring to fig. 3, 4, 7 and 10, a plurality of second protrusions 113 are disposed at the edge of the bottom plate 11, the second protrusions 113 have second through holes 113a extending in the left-right direction, and screw holes 16a are disposed at the upper end of the supporting plate 16 (see fig. 3, 4, 5 and 6). The rear half-shell 72 has an inwardly turned flange 721 (refer to fig. 1) at the front edge thereof, and a part of the screws are passed through the flange 721 in the left-right direction and screwed into the second bosses 113, and the other part of the screws are passed through the flange 721 and screwed into the screw holes 16a, so that the rear half-shell 72 can be fixed to the base assembly 1.

Wherein the fold 721 extends into the front half shell 71. I.e., the flap 721 is hidden within the front housing half 71, the flap 721 is not visible to the user from the exterior of the anesthetic vaporizer.

During assembly, the rear half shell 72 is assembled, and then the front half shell 71 is assembled, so that other connecting structures are not needed at the joint of the front half shell 71 and the rear plate shell, and screws exposed on the appearance surface are not needed.

For example, referring to fig. 1 and fig. 2 in combination, the handwheel assembly 5 includes a handwheel 52, an upper cover 51, a sheet metal pressing sheet 521 disposed in the handwheel 52, and a magnetic shielding sheet 522.

Referring to fig. 2, the sheet metal pressing plate 521 is fixed on the air passage block assembly 4 by screwing.

For example, referring to fig. 2, 3 and 4, a button 523 that is reset by a spring is installed on the side of the hand wheel 52; referring to fig. 2, a hook 5231 is disposed at a portion of the button 523 located inside the handwheel 52, the front half shell 71 is disposed with a slot 71a, and the hook 5231 is hooked into the slot 71 a. When the button 523 is not pressed yet, the hand wheel 52 cannot rotate due to the limit fit of the hook 5231 and the slot 71 a. When the hand wheel 52 needs to be rotated, the button 523 needs to be pressed first, and then the hand wheel 52 needs to be rotated.

Referring to fig. 2, the air path block assembly 4 has the reed pipe 41 and the magnet 42 which are arranged at intervals, when the hand wheel 52 is located at the zero position, the magnetism isolating piece 522 is located between the reed pipe 41 and the magnet 42, that is, the reed pipe 41 and the magnet 42 are located at two opposite sides of the magnetism isolating piece 522, for example, the magnetism isolating piece 522 may be located at two opposite sides of the left and right sides, the front and back sides, and the like, without limitation, in this state, the magnetic force of the magnet 42 does not act on the reed pipe 41, and the reed pipe 41 is in the disconnected state; when the magnetism isolating sheet 522 rotates along with the hand wheel 52 and moves out of the position between the reed switch 41 and the magnet 42, the reed switch 41 is closed under the magnetic force of the magnet 42, and a hand wheel switch signal is output.

The reed pipe 41 is a magnetic sensor, and the magnetism isolating sheet 522 is made of a magnetic conducting material.

The embodiment of the application provides an anesthesia machine, includes:

and the anesthetic vaporizer of any embodiment of this application, anesthetic vaporizer install on the vaporizer connecting seat, and gas supply system is connected with anesthetic vaporizer to make anesthetic vaporizer can provide anesthetic gas to the patient through breathing circuit.

The anesthesia machine of the embodiment of the application can also have better heat dissipation performance under the condition that the power module has better liquid-proof performance because the liquid baffle plate is arranged above the power module.

In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of different embodiments or examples described herein may be combined by one skilled in the art without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An anesthetic vaporizer, comprising:

a drug reservoir assembly;

2. The anesthetic vaporizer of claim 1, wherein a projection of the power module is located within a projection of the liquid baffle in a top view projection of the anesthetic vaporizer.

3. The anesthetic vaporizer of claim 1, wherein the bottom plate is provided with a liquid guide groove and a liquid discharge port which communicate with each other, the liquid guide groove and the liquid discharge port forming the liquid discharge portion, the liquid discharge port penetrating to a lower side surface of the bottom plate to discharge liquid introduced into the liquid guide groove by the flow guide portion from below the bottom plate.

4. The anesthetic vaporizer of claim 3, wherein the top surface of the liquid baffle is provided with a shoulder, the shoulder is disposed around an edge of the liquid baffle, the liquid baffle is provided with a liquid outlet, the shoulder and the liquid outlet form the drainage portion, and liquid in an area surrounded by the top surface of the liquid baffle by the shoulder flows to the liquid guiding groove through the liquid outlet.

5. The anesthetic vaporizer of claim 4, wherein an edge of the liquid baffle is turned upward to form the shoulder, a partial portion of the liquid baffle is turned obliquely downward to form a liquid guiding piece, and the shoulder is broken at the liquid guiding piece to define the liquid outlet;

6. The anesthetic vaporizer of any of claims 4-5, wherein the position of the liquid outlet opening is outside a top view projection of the power module.

7. The anesthetic vaporizer of claim 3, wherein the liquid discharge port is provided in a trough bottom of the liquid guide trough, the trough bottom including a slope connected to at least one side edge of the liquid discharge port, the slope extending obliquely upward in a direction from near to far from the edge of the liquid discharge port.

8. The anesthetic vaporizer of claim 7, wherein the ramps are connected to the entire circumferential edge of the liquid discharge port, all of the ramps enclosing a frustoconical structure.

9. The anesthetic vaporizer of claim 3, wherein the liquid discharge port comprises a first sub-aperture and a second sub-aperture located below the first sub-aperture, the first and second sub-apertures being in communication with one another; in a top projection of the base plate, a projection of the first sub-hole and a projection of the second sub-hole partially overlap and are partially offset.

10. The anesthetic vaporizer of claim 1, wherein the bottom surface of the drug basin assembly is higher than the top surface of the liquid shield and is not pressed against the liquid shield; the power supply module is detachably connected with the bottom plate, and the power supply module can be drawn out from the lower part of the medicine pool assembly independently or together with the liquid baffle plate;

or the medicine pool assembly and the liquid baffle are connected with each other, and the power supply module can be independently drawn out from the lower part of the liquid baffle.

11. The anesthetic vaporizer as claimed in claim 1, wherein the anesthetic vaporizer includes a gas path block assembly located above the drug pool assembly, the bottom plate further has a supporting boss, the top end of the drug pool assembly is connected to the gas path block assembly, and the bottom end of the drug pool assembly is supported on the supporting boss.

12. The anesthetic vaporizer of claim 11 wherein the base assembly includes a support plate extending toward a side of the air passage block assembly, the anesthetic vaporizer further comprising a valve seat assembly juxtaposed to the air passage block assembly above the drug basin assembly;

the lower end of the air path block component is installed on the support plate, and the medicine pool component is connected to the air path block component through the valve seat component.

13. The anesthetic vaporizer of claim 1, wherein the base assembly includes a mounting seat disposed at a rear end of the bottom plate, two bracket plates mounted on the mounting seat, the two bracket plates being spaced apart from each other in a left-right direction of the mounting seat, and the drug reservoir assembly being disposed between the two bracket plates.

14. The anesthetic vaporizer of claim 13, wherein a first gap is provided between the side surfaces of the left and right sides of the drug basin assembly and the bracket plate.

15. The anesthetic vaporizer of claim 1 including an air passage block assembly positioned above the drug reservoir assembly with a second gap between a top surface of the drug reservoir assembly and the air passage block assembly.

16. The anesthetic vaporizer of claim 13 wherein a third gap is provided between the bottom surface of the drug reservoir assembly and the top surface of the liquid shield and the top surface of the mounting.

17. The anesthetic vaporizer of claim 1, wherein the base assembly includes a mounting base having a battery cavity therein for receiving a battery, the battery cavity being located at one side of the power module, the base assembly including a battery receptacle electrically connected to the power module, the battery receptacle being disposed on a side wall of the battery cavity adjacent to the power module.

18. The anesthetic vaporizer of claim 17 wherein the battery chamber is open at a bottom side, the battery being insertable into and removable from the chamber through the opening.

19. The anesthetic vaporizer of claim 11, comprising a hand wheel assembly disposed above the gas circuit block assembly, the hand wheel assembly comprising a hand wheel and a magnetism-isolating sheet disposed in the hand wheel, the gas circuit block assembly having a reed pipe and a magnet disposed at intervals, the magnetism-isolating sheet being disposed between the reed pipe and the magnet when the hand wheel is in a zero position; when the magnetism isolating piece rotates along with the hand wheel and rotates out of the position between the reed pipe and the magnet, the reed pipe is closed under the action of the magnetic force of the magnet, and a hand wheel switch signal is output.

20. An anesthesia machine, comprising:

and an anesthetic vaporizer according to any of claims 1-19, said anesthetic vaporizer being mounted on said vaporizer attachment base, said gas supply system being connected to said anesthetic vaporizer to enable said anesthetic vaporizer to supply anesthetic gas to a patient via a breathing circuit.