CN112120827A

CN112120827A - Anaesthetic measuring device

Info

Publication number: CN112120827A
Application number: CN202010915768.7A
Authority: CN
Inventors: 向长林
Original assignee: Suzhou Beinuo Medical Instruments Co Ltd
Current assignee: Suzhou Beinuo Medical Instruments Co Ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2020-12-25
Anticipated expiration: 2040-09-03
Also published as: CN112120827B

Abstract

The invention discloses an anesthetic measuring device, belonging to the technical field of anesthetic measurement, and the technical scheme is characterized by comprising a transparent box body and at least three transparent boxes, wherein the transparent boxes are equidistantly distributed in the transparent box body, measuring boxes are slidably arranged in the transparent boxes, a tail clamping mechanism for fixing the tail of a small animal is arranged on the front surface of each measuring box in each measuring box, an extrusion module is arranged on one side of each measuring box, an arc-shaped opening is formed in one side of each transparent box, at least two gas transmission pipelines are arranged on one side of each transparent box body and connected to an external gas supply end, each gas transmission pipeline extends into the transparent box body, at least three gas distribution pipelines are arranged at the lower end of each gas transmission pipeline, the difficulty of putting the tail of the animal into the device can be reduced, and the concentration in each cavity can be controlled according to actual requirements, and the control process is also simpler.

Description

Anaesthetic measuring device

Technical Field

The invention relates to the technical field of anesthetic measurement, in particular to an anesthetic measuring device.

Background

In the field of animal research in anesthesiology, conventional anesthesia experiments often involve the determination of the sensitivity of small animals to inhalation anesthetic drugs, and the method can be used for researching the sensitivity of small animals with certain gene mutations to the existing inhalation anesthetic drugs so as to determine the action targets of the inhalation anesthetic drugs and can also be used for researching the anesthetic effect of novel anesthetic drugs on the small animals. In order to determine the application dose of the small animal to the inhalation anesthetic, the effective dose range or dose-effect curve of the inhalation anesthetic needs to be determined, and two test experiments are specifically involved: the method comprises the following steps of firstly, testing the effective dose range of the inhalation anesthetic which can not enable the small animal to maintain the righting reflex, wherein the righting reflex refers to that when the back of the small animal is placed downwards, the small animal can be reflexively restored to the standing position and can be maintained not to fall down; and secondly, an experiment for measuring the effective dose range of the inhalation anesthetic which enables the tail flick reaction of the small animal to disappear, wherein the tail flick reaction is the reaction that the small animal holds the tail of the small animal with a certain pressure and feels pain to flick the tail. Specifically, it can be seen in The Journal of pharmacology and experimental therapeutics (Journal of pharmacology and Experimental therapeutics (2007, No. 924-934, Vol. 323)), that knockout mice exhibit exaggerated cognitive dysfunction in nocturnal activities and decreased susceptibility to volatile inhalation narcotics: halothane anaesthesia was induced and maintained in a 5L size box with a heat sink placed above to maintain the temperature of the box at 33-34 c to maintain the body temperature of the mice during anaesthesia (anal temperature after anaesthesia of mice was between 35.9-38.7 c. there was no difference between different genotype groups). The oxygen flow is 4L/min, and the halothane volatilizes from a Fluotec 3 volatilizing tank. The carbon dioxide and fluorocarbon concentrations were monitored by a Capnomax-Ultima monitor. Soda lime particles are placed at the bottom of the induction tank, so that the concentration of carbon dioxide is kept below 0.3%. Checking the righting reflex of the mouse every 2min within the balance time of 20min, continuously turning the mouse to the supine position for three times, if the mouse can not be righted for three times, considering that the righting reflex of the mouse disappears, and recording the concentration of the anesthetic at the moment. After the righting reflex disappeared, the mice were left in the box until equilibration for 20min and their tail-clipped reflex was detected. Thereafter, after equilibration for 20min with higher concentrations of anesthetic, the mouse tail-clipped reflex was detected. The head of the hemostatic forceps clamps the proximal end of the mouse tail for 5s, the mouse has no limb movement and nodding reaction, the tail reflection of the mouse is considered to disappear, and the hemostatic forceps is covered with a plastic adhesive tape to prevent the skin of the mouse tail from being damaged. The halothane concentration was 0.5,0.7,0.9,1.1,1.3, and 1.5%, the sevoflurane concentration was similar to the halothane, but the oxygen flow was 7L/min, and the equilibration time was 6 min. The isoflurane concentration is 0.6,0.9,1.2,1.5, and 1.8%, and the balance time is 12 min.

In the prior art, the two test experiments are generally carried out by adopting a closed induction box with the volume of more than or equal to 5L to measure the small animals one by one, two big holes are arranged on the closed induction box to facilitate the small animals to be placed in the box and the operation of extending the small animals into the box by hands, a movable cover is arranged on each big hole in a matching way to seal or open the big holes, however, the extended operation will cause the gaseous state in the closed induction box to escape and communicate with the external gaseous state, thereby causing the concentration of the anesthetic gas to decrease, in order to ensure the concentration of the anesthetic gas, the movable cover is closed to seal the opening immediately after the hand stretching operation is finished, the gaseous anesthetic with the flow rate of up to 4L/min is continuously introduced to balance the concentration in the box to the set concentration, the balance of the concentration of the anesthetic in the induction box needs 20 minutes, the method has the problem of consuming a large amount of gaseous anesthetic due to the large volume of the closed induction box; furthermore, since a single experiment is directed to only a single small animal, at least 30 small animals need to be tested to achieve the desired results. In conclusion, the existing closed induction box has the defects of long experiment time, waste of gaseous anesthetic and low working efficiency.

To above problem, some have appeared at present and have put into the toy tail and have induced the case outside to avoid stretching out the hand operation, and be convenient for observe, but in actual operation process, the toy tail is put into inside comparatively difficultly of tiny through-hole, increased the degree of difficulty for the operation, though the box of separating a plurality of cavities has appeared simultaneously, nevertheless let in gaseous drug concentration that still can not control the entering respectively, the gas that leads to every cavity to let in is the same, be unfavorable for comparing the condition to different drug concentration.

Disclosure of Invention

1. Technical problem to be solved

In view of the problems in the prior art, an object of the present invention is to provide an anesthetic measurement apparatus, which has the advantages of reducing the difficulty of inserting the tail of an animal, controlling the concentration inside each chamber according to the actual requirement, and also having a simple control process.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides an anesthetic measuring device, includes transparent case and a plurality of transparent box, and is a plurality of transparent box equidistance distributes in the inside of transparent case, the inside sliding fit of transparent box has survey box, the inside of surveying the box is provided with double-layered tail mechanism, double-layered tail mechanism is used for being used for fixed determinand, one side of survey box is provided with the extrusion module, the arc opening has been seted up to one side of transparent box, one side of transparent case is provided with a plurality of gas transmission pipeline, gas transmission pipeline be used for to transparent case's inside input anesthetic, every gas transmission pipeline connects a plurality of gas distribution pipelines, the one end that gas transmission pipeline was kept away from to the gas distribution pipeline is provided with the pressurized module, the pressurized module is linked together with the arc opening.

Further, survey the box and seted up and put the tail mouth, it assembles in the inside of putting the tail mouth to press from both sides tail mechanism, it includes lower bracket, upper bracket and clamp plate to press from both sides tail mechanism, lower bracket detachable installs in putting tail mouth inner wall bottom, upper bracket detachable installs the bottom at the clamp plate, upper bracket and lower bracket are the elastic rubber material component, and the opposite side of upper bracket and lower bracket is laminated mutually.

Furthermore, put the inner wall both sides of tail mouth and all be provided with the recess, the both sides of lower bracket, upper bracket and clamp plate all are provided with the fixture block with recess assorted.

Further, survey the inside of box and seted up and hold the chamber, the extrusion module is installed in the inside that holds the chamber, the extrusion module is including the installation shell, inner wall one side fixedly connected with of installation shell has the baffle of through-hole, the inside of installation shell still is provided with the limiting plate that is located baffle one side, the air vent has been seted up on the surface of limiting plate, the middle part sliding connection of limiting plate has the slide bar, the one end fixedly connected with of slide bar is used for the briquetting of shutoff through-hole, the other end fixedly connected with of slide bar is used for the pressure disk of shutoff air vent, and the surface cover of slide bar is equipped with the first extension spring that is located between briquetting.

Furthermore, one end, away from the sliding rod, of the pressure plate is arranged to be convex, and the pressure plate extends to the outside of the mounting shell.

Further, the pressurized module includes communicating pipe, air inlet plate and the pressure cap of being connected with the branch gas pipeline, the air inlet plate sets up in the inside of communicating pipe, and has seted up the inlet port on the air inlet plate, the inner wall one side fixedly connected with T type depression bar of pressure cap, the one end of T type depression bar is run through the air inlet plate and is extended to arc open-ended inside, the pressure cap inner wall is provided with the second extension spring that the cover located T type depression bar surface.

Furthermore, the length of the measuring box is smaller than that of the transparent box, and a sealing rubber ring is arranged at the top of the measuring box.

Furthermore, the stiffness coefficient of the second tension spring is smaller than that of the first tension spring.

Further, the pressure cap is a rubber material component and is used for plugging the air inlet hole.

Furthermore, an air pressure sensor for measuring the internal air pressure is arranged on one side of the inner wall of the measuring box, and an exhaust valve is further arranged at the top of the transparent box.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) according to the scheme, a plurality of transparent boxes are arranged, small animal dosage measurement tests can be independently carried out in each transparent box, the number of the transparent boxes can be set according to actual requirements in the using process, the measurement boxes are selected according to requirements in the test process, and the measurement boxes are placed in the transparent boxes to form a sealed environment with the transparent boxes, so that the gas overflow phenomenon in the test process is reduced;

(2) the gas distribution pipelines which are matched with each other are arranged according to the number of the transparent boxes, so that the measuring boxes in each transparent box can be conveniently introduced with anesthetic drugs, at least two gas distribution channels are arranged, the gas introduction efficiency is improved, and meanwhile, two or more different gases can be introduced respectively according to actual needs so as to measure the anesthesia effect of different types of medicaments on the small animals;

(3) through setting up the tail-clamping mechanism, when choosing the toy to carry on the experiment, can choose upper bracket and lower bracket of different specifications according to the actual animal tail thickness, after installing the lower bracket in putting the inside of tail mouth, place the tail of the small animal on the lower bracket along putting the tail mouth, it is more convenient than traditional to penetrate from the keyhole, assemble the clamp plate equipped with upper bracket to putting the tail mouth next, make upper bracket and lower bracket contact closely, make both can push down the animal tail, then push the whole determination box into the transparent box inside, avoid the tail and bracket contact the place to leak gas phenomenon, it is more convenient than traditional perforated type, and the application scope is wider;

(4) by arranging the extrusion module and the pressure-bearing module, when the extrusion module corresponds to the arc-shaped opening in the process of pushing the measuring box, the first tension spring pulls the press block to enable the press block and the slide rod to push the press plate into the arc-shaped opening together, and the vent hole and the through hole are opened, the press plate can extrude the T-shaped press rod, the T-shaped press rod extrudes the press cap to expose the air inlet hole, the anesthetic can enter the measuring box through the air distribution pipeline, the measuring box can be continuously pushed after the specified concentration is reached, the extrusion module is separated from the arc-shaped opening, the inner wall of the transparent box extrudes the press plate to enable the press plate to plug the vent hole, the press block plugs the through hole to prevent the air from being exposed, the second tension spring pulls the press cap to enable the press cap to plug the press cap to prevent the anesthetic from leaking, no switch is required to be controlled, and the test, the air inflow in each measuring box can be controlled respectively, and the medicine with different concentrations can be conveniently measured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure of the measuring cassette of the present invention;

FIG. 4 is a schematic structural view of the tail clamping mechanism of the present invention;

fig. 5 is an enlarged view of the invention at a in fig. 2.

The reference numbers in the figures illustrate:

1. a transparent box body; 2. a transparent box; 3. a test cartridge; 4. an extrusion module; 401. mounting a shell; 402. a through hole; 403. a baffle plate; 404. a limiting plate; 405. a vent hole; 406. a slide bar; 407. briquetting; 408. a platen; 409. a first tension spring; 5. an arc-shaped opening; 6. a gas pipeline; 7. a gas distribution pipeline; 8. a compression module; 801. a communicating pipe; 802. an air intake plate; 803. pressing the cap; 804. a T-shaped pressure lever; 805. a second tension spring; 806. an air inlet; 9. a tail port is arranged; 10. a lower bracket; 11. an upper bracket; 12. pressing a plate; 13. a groove; 14. a clamping block; 15. an air pressure sensor; 16. and sealing the rubber ring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Referring to fig. 1-5, in an embodiment of the present invention, an anesthetic measuring device includes a transparent box 1 and a plurality of transparent boxes 2, the plurality of transparent boxes 2 are equidistantly distributed inside the transparent box 1, a measuring box 3 is arranged in the transparent box 2 in a sliding way, a tail clamping mechanism is arranged in the measuring box 3, the tail clamping mechanism is used for fixing an object to be measured, one side of the measuring box 3 is provided with an extrusion module 4, an arc-shaped opening 5 is arranged at one side of the transparent box 2, a plurality of gas transmission pipelines 6 are arranged at one side of the transparent box body 1, the gas transmission pipelines 6 are used for inputting anesthetic agents into the transparent box body 1, each gas transmission pipeline 6 is connected with a plurality of gas distribution pipelines 7, one end of the gas distribution pipeline 7, which is far away from the gas transmission pipeline 6, is provided with a pressed module 8, and the pressed module 8 is communicated with the arc-shaped opening 5.

Further, the number of the transparent boxes 2 can be adjusted according to the number of objects to be measured, and the number of the transparent boxes 2 is at least three, so that the measurement experiment of the anesthetic can be met, the anesthetic measurement result is prevented from being less, and accurate measurement data cannot be obtained.

Further, the number of the gas distribution pipelines 7 is at least two, and each gas distribution pipeline 7 can be introduced with one anesthetic, and simultaneously can be introduced with multiple anesthetics, so that more than two anesthetics can be conveniently introduced, and the anesthetic measurement efficiency is improved.

Referring to fig. 3 and 4, the measuring box 3 is provided with a tail opening 9, the tail clamping mechanism is assembled inside the tail opening 9, the tail clamping mechanism comprises a lower bracket 10, an upper bracket 11 and a pressing plate 12, the lower bracket 10 is detachably installed at the bottom of the inner wall of the tail opening 9, the upper bracket 11 is detachably installed at the bottom of the pressing plate 12, the upper bracket 11 and the lower bracket 10 are both elastic rubber members, and opposite sides of the upper bracket 11 and the lower bracket 10 are attached, for example, when the object to be measured is a small animal, when the small animal is selected for testing, the upper bracket 11 and the lower bracket 10 with different specifications can be selected according to the actual thickness of the tail of the animal, after the lower bracket 10 is installed inside the tail opening 9, the tail of the small animal is placed on the lower bracket 10 along the tail opening 9, compared with the traditional anesthetic measuring method, the penetration from a small hole is more convenient in the embodiment, the pressing plate 12 provided with the upper bracket 11 is assembled on the tail opening 9, make upper bracket 11 and lower support seat 10 in close contact with, make the two can push down the animal tail, then with whole survey box 3 push into transparent box 2 inside can, avoid tail and support seat contact department the gas leakage phenomenon to appear, more traditional perforation formula is more convenient, and application scope is wider.

Put the inner wall both sides of tail mouth 9 and all be provided with recess 13, the both sides of lower bracket 10, upper bracket 11 and clamp plate 12 all are provided with the fixture block 14 with recess 13 assorted, mutually support through fixture block 14 and recess 13, can strengthen the sealing performance between tail clamping mechanism and the tail mouth 9 of putting, and have good anti-dislocation effect.

Referring to fig. 5, a containing cavity is formed inside the measuring box 3, the extrusion module 4 is installed inside the containing cavity, the extrusion module 4 includes an installation shell 401, a baffle 403 with a through hole 402 is fixedly connected to one side of the inner wall of the installation shell 401, a limit plate 404 is further arranged inside the installation shell 401 and located on one side of the baffle 403, a vent hole 405 is formed in the surface of the limit plate 404, a slide rod 406 is slidably connected to the middle of the limit plate 404, a press block 407 for blocking the through hole 402 is fixedly connected to one end of the slide rod 406, a press plate 408 for blocking the vent hole 405 is fixedly connected to the other end of the slide rod 406, a first tension spring 409 is sleeved on the surface of the slide rod 406 and located between the press block 407 and the limit plate 404, when the extrusion module 4 corresponds to the arc-shaped opening 5 in the process of pushing the measuring box 3, the press block 407 is pulled by the first tension spring 409, and make air vent 405 and through-hole 402 open, pressure disk 408 can be pressed module 8 at this moment, make anesthetic drug accessible divide gas duct 7 to enter into survey box 3 inside, after reaching appointed concentration, can continue to promote survey box 3, make extrusion module 4 break away from arc opening 5, the inner wall of transparent box 2 extrudees pressure disk 408 this moment, make pressure disk 408 block air vent 405, and briquetting 407 blocks up through-hole 402, avoids the gas to expose.

Referring to fig. 5, the end of the pressure plate 408 away from the sliding rod 406 is provided with a protrusion, and the pressure plate 408 extends to the outside of the mounting case 401, so that when the measuring cartridge 3 is pushed in, the inner wall of the transparent case 2 will press the pressure plate 408 through the protrusion, so that the pressure plate can be pressed into the inside of the mounting case 401, and the measuring cartridge 3 can be pushed into the inside of the transparent case 2.

The pressure receiving module 8 includes a communicating pipe 801 connected to the gas distribution pipe 7, an inlet plate 802, and a pressure cap 803, the inlet plate 802 is disposed inside the communicating pipe 801, an air inlet hole 806 is formed on the air inlet plate 802, a T-shaped pressure rod 804 is fixedly connected to one side of the inner wall of the pressure cap 803, one end of the T-shaped pressure rod 804 penetrates through the air inlet plate 802 and extends to the inside of the arc-shaped opening 5, a second tension spring 805 sleeved on the surface of the T-shaped pressure rod 804 is arranged on the inner wall of the pressure cap 803, when the measuring box 3 is not placed, the second tension spring 805 will pull the pressing cap 803, so that the pressing cap 803 blocks the air inlet hole 806 to prevent the air from leaking out, when the measuring box 3 is placed inside the transparent box 2, when the pressing module 4 corresponds to the pressing module 8, the pressing module 4 presses the T-shaped pressing rod 804, the T-shaped pressing rod 804 presses the pressing cap 803, so that the air inlet hole 806 is exposed, and at this time, the anesthetic can enter the measuring box 3 through the air distribution pipe 7.

Referring to fig. 1 and 3, the length of the measuring box 3 is smaller than that of the transparent box 2, and the sealing rubber ring 16 is disposed at the top of the measuring box 3, the sealing rubber ring 16 can ensure the sealing effect between the measuring box 3 and the transparent box 2, and the length of the measuring box 3 is smaller than that of the transparent box 2, so that the measuring box 3 is pushed, the pressing module 4 is separated from the pressure-bearing module 8, and the air supply inside the measuring box 3 can be stopped.

Referring to fig. 5, the stiffness coefficient of the second tension spring 805 is smaller than that of the first tension spring 409, so that the pulling force of the first tension spring 409 on the sliding rod 406 is larger than that of the second tension spring 805 on the pressing cap 803, thereby enabling the sliding rod 406 and the pressing disc 408 to push the T-shaped pressing rod 804, so that the T-shaped pressing rod 804 can push the pressing cap 803 open, and the air inlet hole 806 can be vented normally.

Referring to fig. 5, the pressing cap 803 is a rubber material member for blocking the air inlet hole 806, and the rubber material is softer overall, so that the pressing cap is more tightly attached to the air inlet plate 802, and the air leakage prevention effect is better.

Referring to fig. 2, an air pressure sensor 15 for measuring the internal air pressure is arranged on one side of the inner wall of the measuring box 3, an exhaust valve is further arranged on the top of the transparent box 2, the air pressure sensor 15 is arranged for measuring the internal air concentration of the measuring box 3, so that the medicine feeding amount can be conveniently judged, and the exhaust valve can exhaust waste gas after the test is finished.

The working principle of the invention is as follows: when a small animal is selected for testing, the upper bracket 11 and the lower bracket 10 with different specifications can be selected according to the actual thickness of the tail of the animal, the lower bracket 10 is arranged inside the tail opening 9, the tail of the small animal is placed on the lower bracket 10 along the tail opening 9, the penetration from a small hole is more convenient than the traditional method, the pressing plate 12 provided with the upper bracket 11 is assembled on the tail opening 9, the upper bracket 11 is tightly contacted with the lower bracket 10, the animal tail can be pressed by the upper bracket and the lower bracket, then the whole measuring box 3 is pushed into the transparent box 2, the phenomenon of air leakage at the contact position of the tail and the bracket is avoided, the traditional punching method is more convenient, the application range is wider, in the process of pushing the measuring box 3, when the extrusion module 4 corresponds to the arc-shaped opening 5, the first tension spring pulls the pressing block 407, the pressing block 409 and the sliding rod 406 push the pressing plate 408 into the arc-shaped opening 5 together, and make air vent 405 and through-hole 402 open, pressure disk 408 can be pressed module 8 at this moment, can extrude T type depression bar 804, T type depression bar 804 extrudes pressure cap 803, make inlet port 806 expose, narcotic drug can enter into survey box 3 inside through dividing gas duct 7 at this moment, after reaching appointed concentration, can continue to promote survey box 3, make extrusion module 4 break away from arc opening 5, the inner wall of transparent box 2 extrudes pressure disk 408 at this moment, make pressure disk 408 block air vent 405, and briquetting 407 blocks through-hole 402, avoid gaseous exposing, then test the tail of toy, test the range that the animal swayed the tail, so that judge the anesthesia effect.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The anesthetic agent measuring device is characterized by comprising a transparent box body (1) and a plurality of transparent boxes (2), wherein the transparent boxes (2) are distributed in the transparent box body (1) in an equidistance mode, the inside of each transparent box (2) is provided with a measuring box (3) in a sliding mode, the inside of each measuring box (3) is provided with a tail clamping mechanism, each tail clamping mechanism is used for fixing an object to be measured, one side of each measuring box (3) is provided with an extrusion module (4), one side of each transparent box (2) is provided with an arc-shaped opening (5), one side of each transparent box body (1) is provided with a plurality of gas transmission pipelines (6), each gas transmission pipeline (6) is used for inputting anesthetic agents into the inside of the transparent box body (1), each gas transmission pipeline (6) is connected with a plurality of gas distribution pipelines (7), one ends, far away from the gas transmission pipelines (6), of the gas distribution pipelines (7) are provided with a pressure receiving module (8), the compression module (8) is communicated with the arc-shaped opening (5).

2. An anesthetic agent measuring device according to claim 1, characterized in that: survey box (3) have been seted up and have been put tail mouth (9), it assembles in the inside of putting tail mouth (9) to press from both sides tail mechanism, it includes lower bracket (10), upper bracket (11) and clamp plate (12) to press from both sides tail mechanism, lower bracket (10) detachable is installed and is being put tail mouth (9) inner wall bottom, the bottom at clamp plate (12) is installed to upper bracket (11) detachable, upper bracket (11) and lower bracket (10) are the elastic rubber material component, and the opposite side of upper bracket (11) and lower bracket (10) is laminated mutually.

3. An anesthetic agent measuring device according to claim 2, characterized in that: put the inner wall both sides of tail mouth (9) and all be provided with recess (13), the both sides of lower bracket (10), upper bracket (11) and clamp plate (12) all are provided with fixture block (14) with recess (13) assorted.

4. An anesthetic agent measuring device according to claim 1, characterized in that: an accommodating cavity is formed in the measuring box (3), the extrusion module (4) is arranged in the accommodating cavity, the extrusion module (4) comprises an installation shell (401), one side of the inner wall of the installation shell (401) is fixedly connected with a baffle plate (403) with a through hole (402), a limiting plate (404) positioned at one side of the baffle (403) is also arranged inside the mounting shell (401), the surface of the limiting plate (404) is provided with a vent hole (405), the middle part of the limiting plate (404) is connected with a sliding rod (406) in a sliding way, one end of the sliding rod (406) is fixedly connected with a pressing block (407) for plugging the through hole (402), the other end of the sliding rod (406) is fixedly connected with a pressure plate (408) for plugging the vent hole (405), and the surface of the sliding rod (406) is sleeved with a first tension spring (409) positioned between the pressing block (407) and the limiting plate (404).

5. An anesthetic agent measuring device according to claim 4, characterized in that: one end of the pressing plate (408) far away from the sliding rod (406) is arranged to be convex, and the pressing plate (408) extends to the outside of the mounting shell (401).

6. An anesthetic agent measuring device according to claim 5, characterized in that: the pressure module (8) includes communicating pipe (801), air inlet plate (802) and pressure cap (803) be connected with branch gas pipeline (7), air inlet plate (802) set up in the inside of communicating pipe (801), and seted up inlet port (806) on air inlet plate (802), inner wall one side fixedly connected with T type depression bar (804) of pressure cap (803), the inside that air inlet plate (802) and extended to arc opening (5) is run through to the one end of T type depression bar (804), pressure cap (803) inner wall is provided with the second extension spring (805) that the cover located T type depression bar (804) surface.

7. An anesthetic agent measuring device according to claim 1, characterized in that: the length of the measuring box (3) is less than that of the transparent box (2), and a sealing rubber ring (16) is arranged at the top of the measuring box (3).

8. An anesthetic agent measuring device according to claim 6, characterized in that: the stiffness coefficient of the second tension spring (805) is smaller than that of the first tension spring (409).

9. An anesthetic agent measuring device according to claim 1, characterized in that: the pressure cap (803) is a rubber material component and is used for sealing the air inlet hole (806).

10. An anesthetic agent measuring device according to claim 1, characterized in that: an air pressure sensor (15) used for measuring the internal air pressure is arranged on one side of the inner wall of the measuring box (3), and an exhaust valve is further arranged at the top of the transparent box (2).