CN102462884B - Double-level concentration control type anaesthetic evaporation device - Google Patents
Double-level concentration control type anaesthetic evaporation device Download PDFInfo
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- CN102462884B CN102462884B CN201010537233.7A CN201010537233A CN102462884B CN 102462884 B CN102462884 B CN 102462884B CN 201010537233 A CN201010537233 A CN 201010537233A CN 102462884 B CN102462884 B CN 102462884B
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Abstract
The invention provides a double-level concentration control type anaesthetic evaporation device, which comprises a dosing mechanism, a primary concentration control mechanism and a secondary concentration control mechanism, wherein the dosing mechanism is respectively connected with the primary concentration control mechanism and the secondary concentration control mechanism through a dosing pipeline, and the primary concentration control mechanism is also connected with the secondary concentration control mechanism through a pipeline; and the primary concentration control mechanism adopts a spraying mode to realize the primary control on the anaesthetic concentration of 0-7%, and the secondary concentration control mechanism adopts a low concentration supplement evaporation mode to realize the accurate control on the anaesthetic concentration of 0.1-0.9%. The double-level concentration control type anaesthetic evaporation device combines two modes of spraying and evaporation, so the precision is improved, the volume is reduced, the weight is lowered, the dosing is fast, the dose of the anaesthetic concentration is increased, and the double-level concentration control type anaesthetic evaporation device is suitable for the integral use of various anesthesia machines which are used in the current hospitals.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments parts, relate in particular to a kind of Double-level concentration control type anaesthetic evaporation device.
Background technology
Anesthesia evaporator is that a kind of anesthetic liquid medicine that can effectively evaporate also can accurately be inputted anesthetics the device of breathing circuit for anesthesia by finite concentration.The degree of stability of anesthetics output concentration has determined the quality of anesthetic machine overall performance, is related to the success or failure of inhalation anesthesia, is directly involved in patient's safety.
At present domestic all vaporizers are import, aspect the mixing of medicine and air, adopt medicine evaporation more and by air, deliver, dilute after enter in patient body, current vaporizer anesthetics is exported concentration maximum output 6%, precision 0.2%.
Along with the higher trend of modern body weight, existing vaporizer cannot adapt to quick, heavy dose of anaesthetic to be supplied with, and main cause is the limitation of adopted medicine evaporation mode: one, if drug volatilization amount is larger, medicine is subject to the impact of the factors such as ambient temperature, pressure, carrier gas flow performance larger, make to export drug level unstable, its two, if increase the disengagement area of medicine, can increase the volume of vaporising device, its cost is high, and device is heavy, not Portable belt displacement; If incorporation time is long, cannot realize quick heavy dose of anaesthetic and supply with, therefore, in working control process, be difficult to keep anaesthetic concentration to reach high-precision and stable and carry, drug level is unstable, causes administration concentration inaccuracy.
Summary of the invention
Object of the present invention, is just to overcome the shortcoming and defect of prior art, and provides a kind of volume little, and lightweight, administration is rapid, and can accurately control the Double-level concentration control type anaesthetic evaporation device of drug level.
In order to achieve the above object, the present invention has adopted following technical scheme: a kind of Double-level concentration control type anaesthetic evaporation device, comprise drug administration mechanism, one-level concentration controlling organization and two-stage concentration controlling organization, drug administration mechanism is connected with two-stage concentration controlling organization with one-level concentration controlling organization respectively by administration pipeline, and one-level concentration controlling organization is also connected with two-stage concentration controlling organization by pipeline; One-level concentration controlling organization adopts spray pattern to realize the primary control of anesthetic concentration, and two-stage concentration controlling organization adopts evaporation mode to realize the accurate control of anesthetic concentration.
Described drug administration mechanism comprises administration groove, one-level anesthetics delivery tube, secondary anesthetics delivery tube and liquidometer; One-level anesthetics delivery tube and secondary anesthetics delivery tube are separately positioned on the both sides, bottom of administration groove, and secondary administration control valve is installed on secondary anesthetics delivery tube; Liquidometer is arranged on the upper side of administration groove; In the upper end of administration groove, be provided with anesthetics dosing mouth; Described one-level concentration controlling organization is connected with one-level anesthetics delivery tube, and described two-stage concentration controlling organization is connected with secondary anesthetics delivery tube.
Described one-level concentration controlling organization comprises check valve, booster pump, nozzle component, Venturi tube and corresponding connecting pipe, the entrance point of check valve is connected with the one-level anesthetics delivery tube of administration groove, the port of export of check valve is connected with the import of booster pump by pipeline, supercharging delivery side of pump is connected with nozzle component by pipeline, and nozzle component is arranged in Venturi tube; Entrance point in Venturi tube is provided with compressed air inlet, and the outlet of Venturi tube is connected with described two-stage concentration controlling organization by pipeline.
Described two-stage concentration controlling organization comprises outer tank, inner canister, vaporization chamber, porous evaporation core, mixing chamber, bypass pipe, pressure compensation ring, supplies with ring, flow-control cone and temperature compensator; The bottom of outer tank is connected with the secondary anesthetics delivery tube of drug administration mechanism, the top of outer tank is provided with two-stage concentration controlling organization gas input port and two-stage concentration controlling organization gas delivery port, the centre of outer tank is provided with the metal obstruct collar its inner chamber is separated into epicoele and cavity of resorption, and cavity of resorption is formed for the vaporization chamber of accommodating anesthetics; Two-stage concentration controlling organization gas input port is connected with the Venturi tube in one-level concentration controlling organization by pipeline; Inner canister is erected in the middle of outer tank, and the bottom of inner canister is provided with uncovered and is communicated with vaporization chamber, and the top of inner canister intercepts the collar through metal and stretches into intracavity; Porous evaporation core is connected to outer tank inwall and the interior tank wall in vaporization chamber; Mixing chamber is arranged on the epicoele of outer tank, and the bottom of mixing chamber was connected with inner canister by communicating pipe, and the left end of mixing chamber is connected with bypass pipe, and the right-hand member of mixing chamber is connected with two-stage concentration controlling organization gas delivery port by pipeline; The left end of bypass pipe is connected with two-stage concentration controlling organization gas input port; Pressure compensation ring is arranged on the top that metal intercepts the collar, and its upper end is connected with two-stage concentration controlling organization gas input port by pipeline, and lower end is connected with supply ring by pipeline; Supplying with ring is arranged in vaporization chamber and is placed between the porous evaporation core of outer tank inwall and interior tank wall; Flow-control is bored on the tank body that is arranged on outer tank and is stretched into inner canister downwards; Temperature compensator is connected on bypass pipe; On the pipeline being connected with supply ring at pressure compensation ring, be provided with control valve.
Described nozzle component comprises head body and printhead controller, printhead controller and head body are movably connected can coaxial rotation, head body is patty structural member, the jet face that its lateral surface is convex, and the joint face that medial surface is planar shaped is provided with installation shaft in the middle of joint face, in head body inside, be provided with interior circular passage, middle circular passage and outer ring passage, between interior circular passage, middle circular passage and outer ring passage and the medial surface of head body, be respectively equipped with a plurality of internal ring services, a plurality of medium ring service and a plurality of outer shroud service, between interior circular passage, middle circular passage and outer ring passage and the lateral surface of head body, be respectively equipped with a plurality of internal ring spray orifices, a plurality of medium ring spray orifice and a plurality of outer shroud spray orifice, the aperture of internal ring spray orifice, medium ring spray orifice and outer shroud spray orifice is identical but number different, the number of medium ring spray orifice is the twice of the number of internal ring spray orifice, and the number of outer shroud spray orifice is the twice of the number of medium ring spray orifice, also equidistantly in the outer of medial surface be provided with eight detents, periphery corresponding to eight detents is provided with limited step, on the periphery of head body, corresponding to eight detents, is sequentially with 0%, 1%, 2%, 3%, 4%, 5%, 6% and 7% 8 administration concentration sign, printhead controller is patty structural member, centre is provided with installing hole, the installation shaft of head body is arranged in this installing hole, the medial surface of printhead controller is connected with the joint face of head body, the lateral surface of printhead controller is provided with total feeding opening, total feeding opening is connected with booster pump by pipeline, in the inside of printhead controller, being provided with passage is communicated with above-mentioned total feeding opening, between this passage and the medial surface of printhead controller, be provided with internal ring passage, medium ring passage and outer ring channel, internal ring passage, the position of medium ring passage and outer ring channel respectively with head body on internal ring service, medium ring service is corresponding with outer shroud service, medial surface edge at printhead controller is provided with steel ball spring detent mechanism and positive stop lug boss, on the periphery of printhead controller, corresponding to positive stop lug boss, is provided with concentration cue mark, detent in steel ball spring detent mechanism and head body is suitable, and the limited step in positive stop lug boss and head body is suitable.
Described pressure compensation ring is one and in pipeline, is interval with polylith baffle plate with the circulating line of opening, and each baffle plate is cross-linked the inner and outer wall at pipeline.
Described supply ring is that cylindrical shape is jacket structured, at the inner and outer wall of supplying with ring, is interval with respectively a plurality of ducts of giving vent to anger.
Described porous evaporation core is cotton thread fabric.
Described temperature compensator comprises a motionless valve port and movable valve port, and motionless valve port is fixed in a low-expansion Metallic rod, and movable valve port is fixed in the Metallic rod of a high expansion coefficient; The Metallic rod of high expansion coefficient stretches in vaporization chamber downwards, and can telescopic variation occur with the variations in temperature in vaporization chamber, thereby drive activity valve port moves up and down, and regulates the spacing size between motionless valve port and movable valve port.
Described inner canister top is provided with flow-control and bores adaptive pyramidal structure.
Double-level concentration control type anaesthetic evaporation device of the present invention adopts spray pattern to realize the primary control of anesthetic concentration by one-level concentration controlling organization, by two-stage concentration controlling organization, adopts evaporation mode to realize the accurate control of anesthetic concentration.The control accuracy having improved, is applicable to Hospitals at Present in the various anesthetic machines integrated use of use.
Accompanying drawing explanation
Fig. 1 is the population structure schematic diagram of Double-level concentration control type anaesthetic evaporation device of the present invention;
Fig. 2 is the structural representation of the drug administration mechanism in the present invention;
Fig. 3 is the structural representation of the printhead controller in the present invention;
Fig. 4, Fig. 5, Fig. 6 are the structural representations of the head body in the present invention;
Fig. 7 is the structural representation of the two-stage concentration controlling organization in the present invention;
Fig. 8 is the structural representation of the pressure compensation ring in the present invention;
Fig. 9 is the structural representation of the supply ring in the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, Double-level concentration control type anaesthetic evaporation device of the present invention is described further, accompanying drawing is depicted as a preferred embodiment of the present invention, the invention is not restricted to the present embodiment.
Referring to Fig. 1, Double-level concentration control type anaesthetic evaporation device of the present invention, comprise drug administration mechanism 1, one-level concentration controlling organization 2 and two-stage concentration controlling organization 3, drug administration mechanism 1 is connected with two-stage concentration controlling organization 3 with one-level concentration controlling organization 2 respectively by administration pipeline, and one-level concentration controlling organization 2 is also connected with two-stage concentration controlling organization 3 by pipeline; One-level concentration controlling organization 2 adopts spray pattern to realize the primary control of anesthetic concentration, and two-stage concentration controlling organization 3 adopts evaporation mode to realize the accurate control of anesthetic concentration.
Referring to Fig. 2, the drug administration mechanism 1 in the present invention comprises administration groove 11, one-level anesthetics delivery tube 12, secondary anesthetics delivery tube 13, liquidometer 14 and anesthetics dosing mouth 15.One-level anesthetics delivery tube 12 and secondary anesthetics delivery tube 13 are separately positioned on the both sides, bottom of administration groove, and liquidometer 14 is arranged on the upper side of administration groove; In the upper end of administration groove, be provided with anesthetics dosing mouth 15; One-level anesthetics delivery tube 12 is connected with one-level concentration controlling organization 2 by pipeline, and secondary anesthetics delivery tube 13 is connected with two-stage concentration controlling organization 3 by pipeline, and secondary administration control valve 16 is installed on secondary anesthetics delivery tube 13.
Continuation is referring to Fig. 1, one-level concentration controlling organization 2 in the present invention comprises check valve 21, booster pump 22, nozzle component 23, Venturi tube 24 and corresponding connecting pipe, the entrance point of check valve 21 is connected with the one-level anesthetics delivery tube 12 of administration groove, the port of export of check valve 21 is connected with the import of booster pump 22 by pipeline, the outlet of booster pump 22 is connected with nozzle component 23 by pipeline, and booster pump 22 is by step motor control.Nozzle component 23 is arranged in Venturi tube 24; Entrance point in Venturi tube 24 is provided with compressed air inlet, and the outlet of Venturi tube 24 is connected with two-stage concentration controlling organization 3 by pipeline 25.
Referring to Fig. 3, Fig. 4, Fig. 5, Fig. 6, the nozzle component 23 in the present invention comprises head body 231 and printhead controller 232; Printhead controller 232 is movably connected with head body 231 can coaxial rotation.
The structure of head body 231, as shown in Fig. 4, Fig. 5, Fig. 6, is patty structural member, the jet face that its lateral surface 2311 is convex, and the joint face that medial surface 2312 is planar shaped is provided with installation shaft 2313 in the middle of joint face 2312; In head body inside, be provided with interior circular passage 2314, middle circular passage 2315 and outer ring passage 2316; Between the medial surface 2312 of interior circular passage 2314, middle circular passage 2315 and outer ring passage 2316 and head body, be respectively equipped with 2317,4 medium ring services 2318 of 4 internal ring services and 4 outer shroud services 2319; Between the lateral surface 2311 of interior circular passage 2314, middle circular passage 2315 and outer ring passage 2316 and head body, be respectively equipped with 2331,20 medium ring spray orifices 2332 of 10 internal ring spray orifices identical with the aperture of 40 outer shroud spray orifices with 2331,20 medium ring spray orifices 2332 of 2333,10 internal ring spray orifices of 40 outer shroud spray orifices.Also equidistantly in the outer of medial surface 2312 be provided with eight detents 2334, periphery corresponding to eight detents is provided with limited step 2335, on the periphery of head body, corresponding to eight detents, is sequentially with 0%, 1%, 2%, 3%, 4%, 5%, 6% and 7% 8 administration concentration sign.
The structure of printhead controller 232 is as Fig. 3 a, shown in Fig. 3 b, for patty structural member, centre is provided with installing hole 2321, the installation shaft 2313 of head body is arranged in this installing hole, the medial surface of printhead controller is connected with the joint face of head body, the lateral surface of printhead controller is provided with total feeding opening 2322, total feeding opening is connected with booster pump by pipeline, in the inside of printhead controller, be provided with passage and be communicated with (out not shown) with above-mentioned total feeding opening, between this passage and the medial surface of printhead controller, be provided with internal ring passage 2323, medium ring passage 2324 and outer ring channel 2325, internal ring passage 2323, the position of medium ring passage 2324 and outer ring channel 2325 respectively with head body on internal ring service, medium ring service is corresponding with outer shroud service, at the medial surface edge of printhead controller, be provided with steel ball spring detent mechanism 2326 and positive stop lug boss 2327, on the periphery of printhead controller, corresponding to positive stop lug boss, be provided with concentration cue mark 2328, steel ball spring detent mechanism 2326 is suitable with the detent in head body, and positive stop lug boss 2327 is suitable with the limited step in head body.
Referring to Fig. 7, the two-stage concentration controlling organization 3 in the present invention comprises outer tank 31, inner canister 32, vaporization chamber 314, porous evaporation core 33, mixing chamber 34, bypass pipe 35, pressure compensation ring 36, supplies with ring 37, flow-control cone 38 and temperature compensator 39.The bottom of outer tank is connected with the secondary anesthetics delivery outlet pipe of drug administration mechanism, the top of outer tank is provided with two-stage concentration controlling organization gas input port 311 and two-stage concentration controlling organization gas delivery port 312, the centre of outer tank is provided with the metal obstruct collar 313 its inner chamber is separated into epicoele and cavity of resorption, and cavity of resorption is formed for the vaporization chamber 314 of accommodating anesthetics; Two-stage concentration controlling organization gas input port 311 is connected with the Venturi tube 24 in one-level concentration controlling organization 2 by pipeline; Inner canister 32 is erected in the middle of outer tank, and the bottom of inner canister is provided with uncovered and is communicated with vaporization chamber 314, and the top of inner canister intercepts the collar 313 through metal and stretches into intracavity; On inner canister top, be provided with the pyramidal structure 321 of boring 38 adaptations with flow-control.Porous evaporation core 33 is connected to the inwall of the outer tank in vaporization chamber and the outer wall of inner canister; Mixing chamber 34 is arranged on the epicoele of outer tank, and the bottom of mixing chamber 34 was connected with inner canister 32 by communicating pipe, and the left end of mixing chamber 34 is connected with bypass pipe 35, and the right-hand member of mixing chamber 34 is connected with two-stage concentration controlling organization gas delivery port 312 by pipeline; The left end of bypass pipe 35 is connected with two-stage concentration controlling organization gas input port 311; Pressure compensation ring 36 is arranged on the top that metal intercepts the collar, and its upper end is connected with two-stage concentration controlling organization gas input port 311 by pipeline, and lower end is connected with supply ring 37 by pipeline; Supplying with ring 37 is arranged in vaporization chamber; Flow-control cone 38 is arranged on the tank body of outer tank and stretches into inner canister 32 downwards; Temperature compensator 39 is connected on bypass pipe 35; At pressure compensation ring 36, be provided with control valve 30 with on supply ring 37 pipelines that are connected.
Referring to Fig. 8, the pressure compensation ring 36 in the present invention is one and in pipeline, is interval with polylith baffle plate 361 with the circulating line of opening, and each baffle plate is cross-linked the inner and outer wall at pipeline; One end of pressure compensation ring is connected with two-stage concentration controlling organization gas input port 311 by connection tube, and the other end of pressure compensation ring is connected with supply ring 37 by connection tube.
Referring to Fig. 9, supply ring 37 in the present invention is that cylindrical shape is jacket structured, at the inner and outer wall of supplying with ring, be interval with respectively a plurality of ducts 371 of giving vent to anger, supply with ring outer wall duck eye facing to the evaporating core of outer tank inwall, supply with ring inwall duck eye facing to the evaporating core of interior tank wall, make like this mixing more abundant, accelerate evaporation process.
Porous evaporation core in the present invention is cotton thread fabric.
The operation principle of Double-level concentration control type anaesthetic evaporation device of the present invention is can accompanying drawings as follows:
One-level concentration controlling organization workflow: anesthetics liquid (comprises enflurane, desflurane etc.), pack drug administration mechanism 1 into, by one-level anesthetics delivery tube 12, flow to one-level concentration controlling organization 2, after check valve 21 enters the airtight pressurization of booster pump 22, under the effect of printhead controller 232, realize eight grades of controls of anaesthetic concentration 0-7%, the medicinal liquid of high pressure forms tiny gaseous state medicine spray painting by a plurality of spray orifices in head body and goes out, medicine mist is by venturi pipeline 24, after fully mixing with compressed air, enter two-stage concentration controlling organization 3, after the low concentration that carries out 0.1-0.9% supplements, become required concentration, from two-stage concentration controlling organization gas delivery port, flow out, enter breathing pipeline, whole passage is totally-enclosed in the course of the work.
One-level concentration controlling organization 2 in the present invention can be realized eight kinds of concentration and control, and its control principle and control method are as follows:
(1) elementary concentration 0%:
Printhead controller is rotated to administration concentration sign in 0% position, now on printhead controller interior, in, outer three passages all do not communicate with any service in head body, liquid cannot spray, now anesthesia liquid is totally-enclosed, from the anesthetic concentration of one-level concentration controlling organization output, is 0%.
(2) elementary concentration 1%:
By 30 ° of printhead controller rotations to administration concentration sign in 1% position, now the internal ring passage 2323 on printhead controller communicates with an internal ring service 2317 in head body, and from internal ring service 2317, enters 10 internal ring spray orifices 2331 and evenly spray.Now, from the anesthetic concentration of one-level concentration controlling organization output, be 1%.
(3) elementary concentration 2%:
By 60 ° of printhead controller rotations to administration concentration sign in 2% position, now the medium ring passage 2324 on printhead controller communicates with a medium ring service 2318 in head body, and from medium ring service 2318, enters 20 medium ring spray orifices 2332 and evenly spray.Now, from the anesthetic concentration of one-level concentration controlling organization output, be 2%.
(4) elementary concentration 3%:
Printhead controller half-twist to administration concentration is identified in 3% position, now the internal ring passage 2323 on printhead controller and medium ring passage 2324 communicate with an internal ring service 2317 and a medium ring service 2318 in head body respectively, and from internal ring service 2317, enter 10 internal ring spray orifices 2331 and evenly spray, enter 20 medium ring spray orifices 2332 evenly spray from medium ring service 2318.Now, from the anesthetic concentration of one-level concentration controlling organization output, be 3%.
(5) elementary concentration 4%:
By 120 ° of printhead controller rotations to administration concentration sign in 4% position, now the outer ring channel on printhead controller 2325 communicates with an outer shroud service 2319 in head body, and from outer shroud service 2319, enters 40 outer shroud spray orifices 2333 and evenly spray.Now, from the anesthetic concentration of one-level concentration controlling organization output, be 4%.
(6) elementary concentration 5%:
By 150 ° of printhead controller rotations to administration concentration sign in 5% position, now the internal ring passage 2323 on printhead controller and outer ring channel 2325 communicate with an internal ring service 2317 and an outer shroud service 2319 in head body respectively, and from internal ring service 2317, enter 10 internal ring spray orifices 2331 and evenly spray, enter 40 outer shroud spray orifices 2333 evenly spray from outer shroud service 2319.Now, from the anesthetic concentration of one-level concentration controlling organization output, be 5%.
(7) elementary concentration 6%:
By printhead controller Rotate 180 ° to administration concentration sign in 6% position, now the medium ring passage 2324 on printhead controller and outer ring channel 2325 communicate with a medium ring service 2318 and an outer shroud service 2319 in head body respectively, and from medium ring service 2318, enter 20 medium ring spray orifices 2332 and evenly spray, enter 40 outer shroud spray orifices 2333 evenly spray from outer shroud service 2319.Now, from the anesthetic concentration of one-level concentration controlling organization output, be 6%.
(8) elementary concentration 7%:
By 210 ° of printhead controller rotations to administration concentration sign in 7% position, now the internal ring passage 2323 on printhead controller, medium ring passage 2324 and outer ring channel 2325 communicate with the internal ring service 2317 in head body, a medium ring service 2318 and an outer shroud service 2319 respectively, and from internal ring service 2317, enter 10 internal ring spray orifices 2331 and evenly spray, enter 20 medium ring spray orifices 2332 evenly spray, enter 40 outer shroud spray orifices 2333 evenly spray from outer shroud service 2319 from medium ring service 2318.Now, from the anesthetic concentration of one-level concentration controlling organization output, be 7%.
By one-level concentration controlling organization, undertaken after the primary control of anesthetic concentration 0-7%, enter again two-stage concentration controlling organization, carrying out supplementing accurately of anaesthetic concentration 0.1-0.9% controls, this two-stage concentration controlling organization just supplements the small concentration of 0.1-0.9%, disengagement area is little, device volume is little, lightweight, is about the sixth of current universal steaming transmitting apparatus.
The workflow of two-stage concentration controlling organization is achieved as follows:
By one-level concentration controlling organization, flowed into the anesthetics gas of two-stage concentration controlling organization, when only needing the output of integer level, while not needing to compensate, control valve 30 is closed, allow anesthetics gas directly from two-stage concentration controlling organization gas delivery port 312, export through bypass pipe 35.When needs have decimal level (0.1-0.9%) to supplement output, control valve 30 is opened, and flow-control cone 38 is adjusted to required supplementary decimal level concentration, be after the supplementary low concentration of secondary is set, the anesthetics gas that is flowed into two-stage concentration controlling organization by one-level concentration controlling organization is divided into two parts, a part, as carrier gas, enters vaporization chamber 314 through pressure compensation ring 36, supply ring 37.In vaporization chamber, be provided with porous evaporation core 33, porous evaporation core 33 parts are immersed in anesthesia liquid, and medicinal liquid is because capillarity rises along fiber, when carrier gas by during through time, the medicinal liquid that cotton thread shows is evaporated rapidly, and carrier gas, after vaporization chamber, becomes saturated anesthetic gases gradually.By flow-control cone 38, regulate the output that supplements saturated anesthetic gases.
The anesthetics gas that another part flows into two-stage concentration controlling organization by one-level concentration controlling organization is by bypass pipe 35 drains, with by vaporization chamber supplementary saturated anesthetic gases out after mixing chamber 34 further fully mixes, then deliver to two-stage concentration controlling organization gas delivery port 312 and export.By volatilization replenishment control liquor strength 0.1-0.9%, realize the accurate control of the low concentration of anaesthetic concentration.Because narcotic evaporation is subject to the impact of temperature, can compensate by temperature compensator 39, temperature compensator 39 comprises that one by motionless valve port and movable valve port, and motionless valve port is fixed in a low-expansion Metallic rod, and movable valve port is fixed in the Metallic rod of a high expansion coefficient; The Metallic rod of high expansion coefficient stretches in vaporization chamber downwards, and can there is telescopic variation with the variations in temperature in vaporization chamber, thereby drive activity valve port moves up and down, regulate the spacing size between motionless valve port and movable valve port, realize the adjusting to the anesthetics gas flow by bypass pipe.
Claims (7)
1. a Double-level concentration control type anaesthetic evaporation device, comprise drug administration mechanism, one-level concentration controlling organization and two-stage concentration controlling organization, drug administration mechanism is connected with two-stage concentration controlling organization with one-level concentration controlling organization respectively by administration pipeline, and one-level concentration controlling organization is also connected with two-stage concentration controlling organization by pipeline; One-level concentration controlling organization adopts spray pattern to realize the primary control of anesthetic concentration, and two-stage concentration controlling organization adopts evaporation mode to realize the accurate control of anesthetic concentration; It is characterized in that:
Described drug administration mechanism comprises administration groove, one-level anesthetics delivery tube, secondary anesthetics delivery tube and liquidometer; One-level anesthetics delivery tube and secondary anesthetics delivery tube are separately positioned on the both sides, bottom of administration groove, and secondary administration control valve is installed on secondary anesthetics delivery tube; Liquidometer is arranged on the upper side of administration groove; In the upper end of administration groove, be provided with anesthetics dosing mouth; Described one-level concentration controlling organization is connected with one-level anesthetics delivery tube, and described two-stage concentration controlling organization is connected with secondary anesthetics delivery tube;
Described one-level concentration controlling organization comprises check valve, booster pump, nozzle component, Venturi tube and corresponding connecting pipe, the entrance point of check valve is connected with the one-level anesthetics delivery tube of administration groove, the port of export of check valve is connected with the import of booster pump by pipeline, supercharging delivery side of pump is connected with nozzle component by pipeline, and nozzle component is arranged in Venturi tube; Entrance point in Venturi tube is provided with compressed air inlet, and the outlet of Venturi tube is connected with described two-stage concentration controlling organization by pipeline;
Described two-stage concentration controlling organization comprises outer tank, inner canister, vaporization chamber, porous evaporation core, mixing chamber, bypass pipe, pressure compensation ring, supplies with ring, flow-control cone and temperature compensator; The bottom of outer tank is connected with the secondary anesthetics delivery tube of drug administration mechanism, the top of outer tank is provided with two-stage concentration controlling organization gas input port and two-stage concentration controlling organization gas delivery port, the centre of outer tank is provided with the metal obstruct collar its inner chamber is separated into epicoele and cavity of resorption, and cavity of resorption is formed for the vaporization chamber of accommodating anesthetics; Two-stage concentration controlling organization gas input port is connected with the Venturi tube in one-level concentration controlling organization by pipeline; Inner canister is erected in the middle of outer tank, and the bottom of inner canister is provided with uncovered and is communicated with vaporization chamber, and the top of inner canister intercepts the collar through metal and stretches into intracavity; Porous evaporation core is connected to outer tank inwall and the interior tank wall in vaporization chamber; Mixing chamber is arranged on the epicoele of outer tank, and the bottom of mixing chamber was connected with inner canister by communicating pipe, and the left end of mixing chamber is connected with bypass pipe, and the right-hand member of mixing chamber is connected with two-stage concentration controlling organization gas delivery port by pipeline; The left end of bypass pipe is connected with two-stage concentration controlling organization gas input port; Pressure compensation ring is arranged on the top that metal intercepts the collar, and its upper end is connected with two-stage concentration controlling organization gas input port by pipeline, and lower end is connected with supply ring by pipeline; Supplying with ring is arranged in vaporization chamber and is placed between the porous evaporation core of outer tank inwall and interior tank wall; Flow-control is bored on the tank body that is arranged on outer tank and is stretched into inner canister downwards; Temperature compensator is connected on bypass pipe; On the pipeline being connected with supply ring at pressure compensation ring, be provided with control valve.
2. Double-level concentration control type anaesthetic evaporation device as claimed in claim 1, is characterized in that: described nozzle component comprises head body and printhead controller, printhead controller and head body are movably connected can coaxial rotation, head body is patty structural member, the jet face that its lateral surface is convex, and the joint face that medial surface is planar shaped is provided with installation shaft in the middle of joint face, in head body inside, be provided with interior circular passage, middle circular passage and outer ring passage, between interior circular passage, middle circular passage and outer ring passage and the medial surface of head body, be respectively equipped with a plurality of internal ring services, a plurality of medium ring service and a plurality of outer shroud service, between interior circular passage, middle circular passage and outer ring passage and the lateral surface of head body, be respectively equipped with a plurality of internal ring spray orifices, a plurality of medium ring spray orifice and a plurality of outer shroud spray orifice, the aperture of internal ring spray orifice, medium ring spray orifice and outer shroud spray orifice is identical but number different, the number of medium ring spray orifice is the twice of the number of internal ring spray orifice, and the number of outer shroud spray orifice is the twice of the number of medium ring spray orifice, also equidistantly in the outer of medial surface be provided with eight detents, periphery corresponding to eight detents is provided with limited step, on the periphery of head body, corresponding to eight detents, is sequentially with 0%, 1%, 2%, 3%, 4%, 5%, 6% and 7% 8 administration concentration sign, printhead controller is patty structural member, centre is provided with installing hole, the installation shaft of head body is arranged in this installing hole, the medial surface of printhead controller is connected with the joint face of head body, the lateral surface of printhead controller is provided with total feeding opening, total feeding opening is connected with booster pump by pipeline, in the inside of printhead controller, being provided with passage is communicated with above-mentioned total feeding opening, between this passage and the medial surface of printhead controller, be provided with internal ring passage, medium ring passage and outer ring channel, internal ring passage, the position of medium ring passage and outer ring channel respectively with head body on internal ring service, medium ring service is corresponding with outer shroud service, medial surface edge at printhead controller is provided with steel ball spring detent mechanism and positive stop lug boss, on the periphery of printhead controller, corresponding to positive stop lug boss, is provided with concentration cue mark, detent in steel ball spring detent mechanism and head body is suitable, and the limited step in positive stop lug boss and head body is suitable.
3. Double-level concentration control type anaesthetic evaporation device as claimed in claim 1, it is characterized in that: described pressure compensation ring be one with the circulating line of opening, in pipeline, be interval with polylith baffle plate, each baffle plate is cross-linked the inner and outer wall at pipeline.
4. Double-level concentration control type anaesthetic evaporation device as claimed in claim 1, is characterized in that: described supply ring is that cylindrical shape is jacket structured, at the inner and outer wall of supplying with ring, is interval with respectively a plurality of ducts of giving vent to anger.
5. Double-level concentration control type anaesthetic evaporation device as claimed in claim 1, is characterized in that: described porous evaporation core is cotton thread fabric.
6. Double-level concentration control type anaesthetic evaporation device as claimed in claim 1, it is characterized in that: described temperature compensator comprises a motionless valve port and movable valve port, motionless valve port is fixed in a low-expansion Metallic rod, and movable valve port is fixed in the Metallic rod of a high expansion coefficient; The Metallic rod of high expansion coefficient stretches in vaporization chamber downwards, and can telescopic variation occur with the variations in temperature in vaporization chamber, thereby drive activity valve port moves up and down, and regulates the spacing size between motionless valve port and movable valve port.
7. Double-level concentration control type anaesthetic evaporation device as claimed in claim 1, is characterized in that: described inner canister top is provided with flow-control and bores adaptive pyramidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010537233.7A CN102462884B (en) | 2010-11-09 | 2010-11-09 | Double-level concentration control type anaesthetic evaporation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010537233.7A CN102462884B (en) | 2010-11-09 | 2010-11-09 | Double-level concentration control type anaesthetic evaporation device |
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| Publication Number | Publication Date |
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| CN102462884A CN102462884A (en) | 2012-05-23 |
| CN102462884B true CN102462884B (en) | 2014-03-26 |
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| CN201010537233.7A Expired - Fee Related CN102462884B (en) | 2010-11-09 | 2010-11-09 | Double-level concentration control type anaesthetic evaporation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105343977A (en) * | 2015-10-20 | 2016-02-24 | 山东大学齐鲁医院 | Control system of anesthesia vaporizer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201237U (en) * | 1987-04-13 | 1987-12-31 | 上海市医械模具厂 | Multi-functional anaesthesia machine |
| US5197462A (en) * | 1991-02-20 | 1993-03-30 | Dragerwerk Aktiengesellschaft | Anesthetic metering device |
| US6024087A (en) * | 1997-10-09 | 2000-02-15 | Ohmeda Inc. | Emergency oxygen flowmeter arrangement |
| US6298845B1 (en) * | 1998-09-02 | 2001-10-09 | Siemens Elema Ab | Vaporizer |
| CN101683544A (en) * | 2008-09-28 | 2010-03-31 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia evaporator |
-
2010
- 2010-11-09 CN CN201010537233.7A patent/CN102462884B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201237U (en) * | 1987-04-13 | 1987-12-31 | 上海市医械模具厂 | Multi-functional anaesthesia machine |
| US5197462A (en) * | 1991-02-20 | 1993-03-30 | Dragerwerk Aktiengesellschaft | Anesthetic metering device |
| US6024087A (en) * | 1997-10-09 | 2000-02-15 | Ohmeda Inc. | Emergency oxygen flowmeter arrangement |
| US6298845B1 (en) * | 1998-09-02 | 2001-10-09 | Siemens Elema Ab | Vaporizer |
| CN101683544A (en) * | 2008-09-28 | 2010-03-31 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia evaporator |
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| CN102462884A (en) | 2012-05-23 |
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