Anesthetic quantitative conveying device for anesthesia machine in operating room

Abstract

The invention relates to an anesthetic quantitative conveying device for an anesthesia machine in an operating room, the anesthetic quantitative conveying device comprises an anesthesia machine body and an evaporation tank, the evaporation tank is installed on the right side of the anesthesia machine body, and the evaporation tank is communicated with the anesthesia machine body. The problems that in the prior art, the oxygen amount cannot be controlled, and even the matching value of the oxygen amount and anesthetic during flow rate control is not used are solved, the anesthesia condition of a patient is directly influenced by the gas flow rate, the patient is difficult to anesthetize in time due to insufficient gas amount, and the safety of the patient is easily influenced due to overlarge gas amount.

Description

Technical Field

[0001] The present invention relates to the technical field related to anesthesia, and in particular to an anesthetic quantitative delivery device for an anesthesia machine in an operating room. Background Art

[0002] The anesthesia machine delivers anesthetics into the patient's alveoli through a mechanical circuit to form a partial pressure of anesthetic gas. After diffusing into the blood, it directly inhibits the central nervous system, thereby producing the effect of general anesthesia. The anesthesia machine is a semi-open anesthesia device. It is mainly composed of an anesthesia vaporizer, a flow meter, a folding bellows ventilator, a breathing circuit (including inhalation and exhalation one-way valves and manual air bags), a corrugated pipeline and other components. The anesthesia vaporizer is an important component of the anesthesia machine. Its quality not only indicates the manufacturing level of the anesthesia machine, but also affects the effect and success of inhalation anesthesia, and is directly related to the safety of the patient.

[0003] The existing evaporation tank structure, such as the Chinese patent with the announcement number CN112755359A, discloses an evaporation tank for anesthesia machine that is easy to remove the internal scale, which relates to the technical field of evaporation tanks for anesthesia machines, including a tank body and a support seat, a right storage box is installed at the right end of the tank body, and a pump body is installed at the upper end of the right storage box, a pipeline is arranged at the upper end of the pump body, and the pump body is connected to the connecting pipe through the pipeline, and the pipeline is connected to the tank body through the connecting pipe, a left storage box is installed at the left end of the tank body, and a nozzle is arranged at the upper right end of the tank body, a motor is installed above the tank body, a cleaning mechanism is arranged inside the tank body, the support seat is located outside the lower end of the tank body, and a waste liquid treatment mechanism is arranged at the lower end of the support seat. The scale on the inner wall surface of the tank body can be eroded by spraying an acidic cleaning agent, which is conducive to promoting the scale to fall off from the tank body, and is conducive to cleaning the scale with a brush, and is also conducive to filtering and collecting the cleaned waste liquid.

[0004] The above-mentioned existing technology centers mainly consider the problem of fouling on the inner wall of the evaporator, but does not consider the problem of gas flow rate. The internal oxygen delivery volume is fixed, and the amount of oxygen cannot be controlled, not to mention the problem of the ratio between the amount of oxygen and the anesthetic when controlling the flow rate. The size of the gas flow rate directly affects the patient's anesthesia. Insufficient gas volume makes it difficult for the patient to be anesthetized in time, and excessive gas volume is likely to affect the patient's own safety.

[0005] Based on this, there is still room for improvement on the basis of the existing evaporator tank structure. Summary of the invention

[0006] The purpose of the present invention is to provide an anesthetic quantitative delivery device for an operating room anesthesia machine to solve the deficiencies in the above-mentioned prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: The invention discloses an anesthetic quantitative delivery device for an anesthesia machine in an operating room, comprising an anesthesia machine body and an evaporation tank. The evaporation tank is installed on the right side of the anesthesia machine body, and the evaporation tank and the anesthesia machine body are connected.

[0008] The evaporation tank includes a circuit shell, a control component, a stirring component, an evaporation shell, a heating module and a hand support. The circuit shell is fixedly installed on the anesthesia machine body. The middle part of the circuit shell is provided with a control component. The lower end of the control component is provided with a stirring component. The stirring component is used to stir the anesthetic in the evaporation shell. The evaporation shell is arranged on the upper end of the heating module through the rotation of an electric turntable, and the lower end of the heating module is provided with a hand support.

[0009] As a preferred technical solution of the present invention, the circuit shell includes a shell, a ventilation chamber, a pressure compensation chamber, and an output chamber. The ventilation chamber is arranged at the upper end of the shell, the pressure compensation chamber is arranged at the left side of the shell, and the output chamber is arranged at the right side of the shell, and the ventilation chamber, the pressure compensation chamber, and the output chamber are connected.

[0010] As a preferred technical solution of the present invention, the control component includes a movable rod, a threaded rod, a handle, a partition piece, a hollow rod, a locking head and a blocking piece. The movable rod is arranged in a shell for sliding up and down. The upper end of the movable rod is connected to the lower end of the threaded rod through a bearing. The threaded rod is connected to the shell by threaded cooperation. A handle is installed on the upper end of the threaded rod. A partition piece is arranged inside the movable rod for sliding up and down. A hollow rod is connected between the partition piece and the locking head. The position between the locking head and the handle is temporarily locked. The blocking piece for temporarily blocking the output cavity is installed on the right side of the lower end of the blocking piece.

[0011] As a preferred technical solution of the present invention, a ventilation hole corresponding to the position of the ventilation cavity is opened at the upper end of the movable rod, the aperture of the ventilation hole is equal to that of the ventilation cavity, and a docking hole corresponding to the position of the pressure compensation cavity is opened in the middle of the movable rod.

[0012] As a preferred technical solution of the present invention, the partition piece includes a partition plate and an elastic telescopic rod. A hidden groove is opened at the lower end of the movable rod, and a partition plate is arranged in the hidden groove for sliding up and down. The lower end of the partition plate is connected to the hidden groove through the elastic telescopic rod, and the upper end of the partition plate is connected to the hollow rod through a bearing.

[0013] As a preferred technical solution of the present invention, the locking head includes a connecting head, a card joint, a connecting spring and an unlocking rod. The connecting head is connected to the upper end of the hollow rod. The side wall of the connecting head is provided with a built-in groove. A card joint is slidably arranged in the built-in groove. A connecting spring is connected between the card joint and the built-in groove. The unlocking rod for squeezing the card joint is horizontally slidably arranged in the sliding groove provided in the handle.

[0014] As a preferred technical solution of the present invention, the blocking member includes a breathable rod, a connecting block, a blocking head and an inclined track. A breathable rod is installed on the right side of the lower end of the connecting head, and a connecting block is installed on the lower end of the breathable rod. The connecting block and the upper end of the blocking head are slidably connected. Sliding columns are symmetrically arranged at the front and rear ends of the blocking head. The sliding columns are slidably arranged on the inclined track. The inclined track is a structure that gradually inclines upward from left to right. The inclined track is installed inside the shell. The blocking head in the initial position does not block the pressure output chamber.

[0015] As a preferred technical solution of the present invention, the stirring assembly includes a connecting rod, a lifting rod, a fixed rod, a first stirring paddle, a movable rod, and a second stirring paddle. The connecting rod is arranged in the middle of the lower end of the circuit shell, the lifting rod slidably arranged in the connecting rod is installed at the lower end of the movable rod, the outer wall of the connecting rod is evenly installed with the fixed rod, the lower end of the fixed rod is evenly installed with the first stirring paddle, the second stirring paddle used in conjunction with the first stirring paddle is installed on the movable rod, and the inner side of the movable rod is installed at the side wall position of the lifting rod.

[0016] As a preferred technical solution of the present invention, the first stirring paddle is composed of a vertical pole, a grid paddle and a sliding rail. The vertical pole is installed on a fixed pole, a grid paddle is fixedly sleeved on the vertical pole, and sliding rails are symmetrically installed on the left and right ends of the grid paddle.

[0017] As a preferred technical solution of the present invention, the second stirring paddle includes a linkage rod, a transverse head, and a shaking paddle. The upper end of the linkage rod is installed on the movable rod, and the lower end of the linkage rod slides through the fixed rod and is connected to the transverse head. The transverse head and the shaking paddle are connected by a pin shaft, and sliders are symmetrically installed at both ends of the shaking paddle, and the sliders are slidably set in the sliding rails.

[0018] In summary, this application includes the following beneficial technical effects: The anesthetic quantitative delivery device for an operating room anesthesia machine described in the present invention can accurately control the amount of oxygen, and the gaseous anesthetic matched with it also increases or decreases the amount of evaporated gas by the size of the stirring area, so that the ratio of oxygen to anesthetic is in a relatively stable state. The present invention can also control the double valve structure (partition piece, blocking piece) to control whether oxygen is mixed with anesthetic, thereby controlling the separate delivery of oxygen, which greatly improves the use effect of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of the evaporation tank of the present invention; Figure 3 The present invention Figure 2 A cross-sectional view of Figure 4The present invention Figure 3 A local enlarged view of point X; Figure 5 The present invention Figure 3 A local enlarged view of the Y position; Figure 6 The present invention Figure 3 A partial enlarged view of point Z. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-Figure 6 This application is described in further detail.

[0021] The embodiment of the present application discloses an anesthetic quantitative delivery device for an operating room anesthesia machine. The present application evaporates the liquid anesthetic into a gaseous state and then delivers it stably. The quantitative delivery of the gas is controlled by controlling the size of the cavity, while also ensuring sufficient gas output, thereby ensuring the anesthetic effect.

[0022] Reference Figure 1 to Figure 2 As shown, an anesthetic quantitative delivery device for an anesthesia machine in an operating room disclosed in this embodiment includes an anesthesia machine body 1 and an evaporator 2. The evaporator 2 is installed on the right side of the anesthesia machine body 1, and the evaporator 2 is connected to the anesthesia machine body 1.

[0023] Reference Figures 2 to 3 As shown, the evaporation tank 2 includes a circuit shell 21, a control component 22, a stirring component 23, an evaporation shell 24, a heating module 25 and a hand support 26. The circuit shell 21 is fixedly mounted on the anesthesia machine body 1. The control component 22 is arranged in the middle of the circuit shell 21. The stirring component 23 is installed at the lower end of the control component 22. The stirring component 23 is used to stir the anesthetic in the evaporation shell 24. The evaporation shell 24 is arranged on the upper end of the heating module 25 by rotating the electric turntable. The hand support 26 is installed at the lower end of the heating module 25.

[0024] In actual operation, the anesthesia machine body 1 is connected to the breathing mask through a hose, and the liquid anesthetic is placed in the evaporation shell 24. The liquid anesthetic is stirred and evaporated into a gaseous state through the cooperation of the heating module 25 and the stirring component 23. The oxygen produced by the anesthesia machine body 1 is supplied to the evaporation shell 24. The oxygen entering the evaporation shell 24 is transported in a split manner. Part of the oxygen is directly output, and the other part of the oxygen is mixed with the evaporated anesthetic gas and then re-mixed with the directly output oxygen for transportation. The output gas will subsequently be sent to the breathing mask position to perform anesthesia operations. During the transportation process, the control component 22 can be used to control the quantitative delivery of oxygen and the delivery of anesthetic gas.

[0025] Reference Figure 3As shown, the circuit shell 21 includes a shell 211, a ventilation chamber 212, a pressure compensation chamber 213, and an output chamber 214. The ventilation chamber 212 is provided at the upper end of the shell 211, the pressure compensation chamber 213 is provided on the left side of the shell 211, and the output chamber 214 is provided on the right side of the shell 211, and the ventilation chamber 212, the pressure compensation chamber 213, and the output chamber 214 are connected.

[0026] When oxygen is actually delivered into the circuit shell 21, oxygen enters from the left end of the ventilation chamber 212. When only oxygen needs to be delivered, the inlet position of the pressure compensation chamber 213 is closed by controlling the control component 22. At this time, oxygen is output from the right end of the ventilation chamber 212 alone. When it needs to be mixed with anesthetic gas and output, part of the oxygen is directly output from the right end of the ventilation chamber 212, and another part of the oxygen enters the pressure compensation chamber 213 and is mixed with the anesthetic gas and then output from the output chamber 214, and finally mixed with the straight-through oxygen and output from the right end of the ventilation chamber 212.

[0027] Reference Figure 3 As shown, in order to control the amount of oxygen delivered and whether the anesthetic gas is delivered, the present application makes further structural design to the control component 22, and the specific structure is as follows: the control component 22 includes a movable rod 221, a threaded rod 222, a handle 223, a partition 224, a hollow rod 225, a locking head 226 and a blocking member 227. The movable rod 221 is slidably arranged in the housing 211, and the upper end of the movable rod 221 is connected to the lower end of the threaded rod 222 through a bearing. The threaded rod 222 is connected to the housing 211 by threaded matching. The upper end of the threaded rod 222 is installed with a handle 223, and the interior of the movable rod 221 is slidably arranged with a partition 224, and the partition 224 and the locking head 226 are connected. A hollow rod 225 is connected in between, and the structural setting of the hollow rod 225 ensures the normal delivery of gas without obstruction or interception. The position between the locking head 226 and the handle 223 is temporarily locked, and a blocking piece 227 for temporarily blocking the output chamber 214 is installed on the right side of the lower end of the blocking piece 227; the upper end of the movable rod 221 is provided with a ventilation hole 27 corresponding to the position of the ventilation chamber 212, and the ventilation hole 27 is equal to the aperture of the ventilation chamber 212, and the middle part of the movable rod 221 is provided with a docking hole 28 corresponding to the position of the pressure compensation chamber 213, and the width of the docking hole 28 is equal to twice the width of the pressure compensation chamber 213, which ensures that the amount of gas entering the pressure compensation chamber 213 will not be affected when the movable rod 221 rises.

[0028] In the actual control process, when it is necessary to control the oxygen delivery amount, the handle 223 is turned at this time, and the movable rod 221 is driven to rise slowly through the threaded rod 222 under the action of the threaded cooperation. At this time, a misalignment movement occurs between the vent hole 27 and the ventilation cavity 212, thereby controlling the amount of oxygen passing therethrough. When only oxygen supply is required (anesthetic gas stops being output), the heating module 25 is turned off. At this time, it is only necessary to unlock the locking head 226 so that the partition piece 224 elastically rises to block the upper inlet position of the pressure compensation cavity 213, and the blocking piece 227 intercepts and blocks the output cavity 214. At this time, the evaporated anesthetic gas cannot enter the ventilation cavity 212, and only oxygen is smoothly transported from the ventilation cavity 212 alone.

[0029] Reference Figure 3 As shown, when only oxygen supply is needed, the partition piece 224, the locking head 226, and the blocking piece 227 cooperate with each other to stop the mixing of oxygen and anesthetic gas and the delivery of anesthetic gas to the ventilation cavity 212. The specific structure is that the partition piece 224 includes a partition plate 2241 and an elastic telescopic rod 2242. A hidden groove is provided at the lower end of the movable rod 221. The partition plate 2241 is provided in the hidden groove for sliding up and down. The lower end of the partition plate 2241 is connected to the hidden groove through the elastic telescopic rod 2242. The elastic telescopic rod 2242 always maintains a tendency to push the partition plate 2241 upward. The upper end of the partition plate 2241 is connected to the hollow rod 225 through a bearing.

[0030] Reference Figure 4 As shown, the locking head 226 includes a connecting head 2261, a clamping joint 2262, a connecting spring 2263 and an unlocking rod 2264. The connecting head 2261 is connected to the upper end of the hollow rod 225. A built-in groove is provided on the side wall of the connecting head 2261. A clamping joint 2262 is slidably provided in the built-in groove. A connecting spring 2263 is connected between the clamping joint 2262 and the built-in groove. The unlocking rod 2264 for squeezing the clamping joint 2262 is horizontally slidably provided in the sliding groove provided in the handle 223.

[0031] Reference Figure 6As shown, the blocking member 227 includes a breathable rod 2271, a connecting block 2272, a blocking head 2273 and an inclined track 2274. The breathable rod 2271 is installed on the right side of the lower end of the connecting head 2261. The structural setting of the breathable rod 2271 ensures the normal transportation of gas without obstruction or interception. The lower end of the breathable rod 2271 is installed with a connecting block 2272. The connecting block 2272 and the upper end of the blocking head 2273 are slidably connected. Sliding columns are symmetrically arranged at the front and rear ends of the blocking head 2273. The sliding columns are slidably arranged on the inclined track 2274. The inclined track 2274 is a structure that gradually tilts upward from left to right. The inclined track 2274 is installed inside the shell 211. The blocking head 2273 in the initial position does not block the pressure output chamber 214.

[0032] In actual operation, when only a separate oxygen supply is needed, first shut down the heating module 25, press the unlocking rod 2264 to push the card joint 2262 out of the sliding groove, and then the unlocked connecting head 2261 elastically rises under the action of the elastic telescopic rod 2242, and the partition plate 2241 rises synchronously, thereby blocking the docking hole 28, and the rising connecting head 2261 drives the air-permeable rod 2271 and the connecting block 2272 to rise as a whole, and the blocking head 2273 moves to the right under the guidance of the inclined track 2274 to block the output chamber 214. At this time, oxygen cannot enter the pressure compensation chamber 213 and the anesthetic gas cannot be output upward from the output chamber 214.

[0033] Reference Figure 3 , Figure 5 As shown, the evaporation effect can be improved by stirring during the evaporation process. The present application controls the evaporation speed by controlling the stirring area. The specific structure is as follows: the stirring assembly 23 includes a connecting rod 231, a lifting rod 232, a fixed rod 233, a first stirring paddle 234, a movable rod 235, and a second stirring paddle 236. The connecting rod 231 is arranged at the middle of the lower end of the circuit shell 21, the lifting rod 232 slidably arranged in the connecting rod 231 is installed at the lower end of the movable rod 221, and the outer wall of the connecting rod 231 is evenly installed with fixed rods 233. The fixed rod 233 A first stirring paddle 234 is evenly installed at the lower end, and a second stirring paddle 236 used in conjunction with the first stirring paddle 234 is installed on a movable rod 235. The inner side of the movable rod 235 is installed on the side wall of the lifting rod 232. The first stirring paddle 234 consists of a vertical rod, a grid paddle 2341, and a sliding rail 2342. The vertical rod is installed on the fixed rod 233, and a grid paddle 2341 is fixedly sleeved on the vertical rod. The sliding rails 2342 are symmetrically installed on the left and right ends of the grid paddle 2341, and the height of the sliding rail 2342 is equal to half of the height of the grid paddle 2341.

[0034] Reference Figure 5As shown, the second stirring paddle 236 includes a linkage rod 2361, a transverse head 2362, and a shaking paddle 2363. The upper end of the linkage rod 2361 is installed on the movable rod 235, and the lower end of the linkage rod 2361 slides through the fixed rod 233 and is connected to the transverse head 2362. The transverse head 2362 and the shaking paddle 2363 are connected by a pin shaft, and sliders are symmetrically installed at both ends of the shaking paddle 2363, and the sliders are slidably set in the sliding rail 2342.

[0035] During the actual stirring process, the evaporation shell 24 is driven by the electric turntable to rotate at a low speed, and is stirred by the stirring assembly 23. When the movable rod 221 is at the lowest position, the vent hole 27 and the ventilation cavity 212 are fully aligned, and the amount of oxygen passing through here is at a maximum value. The first stirring paddle 234 and the second stirring paddle 236 in the stirring assembly 23 both stir the anesthetic agent, and the stirring efficiency is at a maximum value. As the movable rod 221 gradually rises, the vent hole 27 and the ventilation cavity 212 gradually stagger, and the amount of oxygen passing through here gradually decreases. The lifting rod 232 and the second stirring paddle 236 are driven to rise as a whole by the movable rod 221. During the rising process of the second stirring paddle 236, the slider of the side wall of the shaking paddle 2363 will contact with the slider. The movable rail 2342 is disengaged, and the angle of the forcibly erected rocking paddle 2363 is unlocked, so that it follows the anesthetic to perform rocking stirring (the stirring effect is reduced). When the lower end surface of the rocking paddle 2363 rises above the anesthetic liquid level, the rocking paddle 2363 has its stirring effect. At this time, the grid paddle 2341 is used for separate stirring, and the stirring effect is further reduced, thereby reducing the evaporation rate and reducing the evaporated anesthetic gas. The present application controls the stirring area by controlling the amount of oxygen. The larger the amount of oxygen entering, the larger the stirring area, and the larger the gaseous anesthetic obtained, so that it is mixed with a sufficient amount of oxygen. The smaller the amount of oxygen entering, the smaller the stirring area, and a small amount of gaseous anesthetic is mixed with a small amount of oxygen, thereby ensuring the ratio of oxygen and anesthetic in the mixed gas.

[0036] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An anesthetic quantitative delivery device for an operating room anesthesia machine, characterized in that: The anesthesia machine comprises an anesthesia machine body (1) and an evaporation tank (2), wherein the evaporation tank (2) is installed on the right side of the anesthesia machine body (1), and the evaporation tank (2) and the anesthesia machine body (1) are connected; The evaporation tank (2) comprises a return shell (21), a control component (22), a stirring component (23), an evaporation shell (24), a heating module (25) and a hand support (26); the return shell (21) is fixedly mounted on the anesthesia machine body (1); the control component (22) is arranged in the middle of the return shell (21); the stirring component (23) is arranged at the lower end of the control component (22); the stirring component (23) is used to stir the anesthetic in the evaporation shell (24); the evaporation shell (24) is arranged at the upper end of the heating module (25) by rotating through an electric turntable; and the hand support (26) is arranged at the lower end of the heating module (25).

2. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 1, characterized in that: The circuit shell (21) comprises a shell (211), a ventilation chamber (212), a pressure compensation chamber (213), and an output chamber (214); the ventilation chamber (212) is provided at the upper end of the shell (211); the pressure compensation chamber (213) is provided on the left side of the shell (211); the output chamber (214) is provided on the right side of the shell (211); and the ventilation chamber (212), the pressure compensation chamber (213), and the output chamber (214) are connected.

3. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 2, characterized in that: The control assembly (22) comprises a movable rod (221), a threaded rod (222), a handle (223), a partition (224), a hollow rod (225), a locking head (226) and a blocking member (227). The movable rod (221) is slidably arranged in the housing (211) up and down. The upper end of the movable rod (221) is connected to the lower end of the threaded rod (222) through a bearing. The threaded rod (222) is connected to the housing (211) by threaded engagement. The handle (223) is installed at the upper end of the threaded rod (222). A partition (224) is slidably arranged inside the movable rod (221) up and down. The hollow rod (225) is connected between the partition (224) and the locking head (226). The position between the locking head (226) and the handle (223) is temporarily locked. The blocking member (227) for temporarily blocking the output cavity (214) is installed on the right side of the lower end of the blocking member (227).

4. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 3, characterized in that: The upper end of the movable rod (221) is provided with a vent hole (27) corresponding to the position of the vent cavity (212), and the vent hole (27) and the vent cavity (212) have the same aperture. The middle portion of the movable rod (221) is provided with a docking hole (28) corresponding to the position of the pressure compensation cavity (213).

5. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 3, characterized in that: The partition piece (224) comprises a partition plate (2241) and an elastic telescopic rod (2242); a hidden groove is provided at the lower end of the movable rod (221); a partition plate (2241) is slidably arranged in the hidden groove; the lower end of the partition plate (2241) is connected to the hidden groove via the elastic telescopic rod (2242); and the upper end of the partition plate (2241) is connected to the hollow rod (225) via a bearing.

6. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 3, characterized in that: The locking head (226) comprises a connecting head (2261), a clamping joint (2262), a connecting spring (2263) and an unlocking rod (2264); the connecting head (2261) is connected to the upper end of the hollow rod (225); a side wall of the connecting head (2261) is provided with a built-in groove, a clamping joint (2262) is slidably arranged in the built-in groove, a connecting spring (2263) is connected between the clamping joint (2262) and the built-in groove, and an unlocking rod (2264) for squeezing the clamping joint (2262) is horizontally slidably arranged in a sliding groove provided in the handle (223).

7. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 6, characterized in that: The blocking member (227) includes a breathable rod (2271), a connecting block (2272), a blocking head (2273) and an inclined track (2274). The breathable rod (2271) is installed on the right side of the lower end of the connecting head (2261). The lower end of the breathable rod (2271) is installed with a connecting block (2272). The connecting block (2272) and the upper end of the blocking head (2273) are connected in a sliding fit. Sliding columns are symmetrically arranged at the front and rear ends of the blocking head (2273). The sliding columns are slidably arranged on the inclined track (2274). The inclined track (2274) is a structure that gradually tilts upward from left to right. The inclined track (2274) is installed inside the shell (211). The blocking head (2273) in the initial position does not block the pressure output chamber (214).

8. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 3, characterized in that: The stirring assembly (23) comprises a connecting rod (231), a lifting rod (232), a fixed rod (233), a first stirring paddle (234), a movable rod (235), and a second stirring paddle (236); the connecting rod (231) is arranged at the middle part of the lower end of the circuit shell (21); the lifting rod (232) slidably arranged in the connecting rod (231) is installed at the lower end of the movable rod (221); the fixing rod (233) is evenly installed on the outer wall of the connecting rod (231); the first stirring paddle (234) is evenly installed on the lower end of the fixed rod (233); the second stirring paddle (236) used in conjunction with the first stirring paddle (234) is installed on the movable rod (235); and the inner side of the movable rod (235) is installed at the side wall position of the lifting rod (232).

9. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 8, characterized in that: The first stirring paddle (234) is composed of a vertical pole, a grid paddle (2341), and a sliding rail (2342); the vertical pole is mounted on a fixed pole (233); a grid paddle (2341) is fixedly sleeved on the vertical pole; and sliding rails (2342) are symmetrically mounted on the left and right ends of the grid paddle (2341).

10. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 9, characterized in that: The second stirring paddle (236) includes a linkage rod (2361), a transverse head (2362), and a shaking paddle (2363). The upper end of the linkage rod (2361) is installed on the movable rod (235). The lower end of the linkage rod (2361) slides through the fixed rod (233) and is connected to the transverse head (2362). The transverse head (2362) and the shaking paddle (2363) are connected by a pin shaft. Slide blocks are symmetrically installed at both ends of the shaking paddle (2363), and the slide blocks are slidably set in the sliding rail (2342).

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