Anesthetic quantitative delivery device for anesthesia machine in operating room

Abstract

The present invention discloses an anesthetic quantitative delivery device for an anesthesia machine in an operating room, and relates to the technical field of medical anesthesia equipment, comprising an anesthesia machine, an anesthesia evaporator, a shell, a liquid storage cylinder, an adapting mechanism, a pushing mechanism, a quantitative mechanism, an exhaust mechanism, and a controller; under the action of the adapting mechanism and the pushing mechanism, the liquid storage cylinder can transfer the anesthetic in an anesthesia bottle for storage, the exhaust mechanism can exhaust the air in the liquid storage cylinder, and can accurately control the amount of anesthetic required by the patient each time, and can cooperate with the quantitative mechanism to control the amount of anesthetic in the liquid storage cylinder transferred to the anesthetic evaporator, thereby accurately controlling the anesthetic dose provided to the patient each time.

Description

Technical Field

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

[0002] The anesthesia vaporizer is an important component of the anesthesia machine. It is a device that can convert liquid volatile inhalation anesthetics into vapor and input a certain amount into the anesthesia circuit. Its function is to effectively evaporate volatile inhalation anesthetics and accurately control their output concentration.

[0003] Anesthetics need to be added to the anesthesia vaporizer in advance before anesthesia is given to the patient. Currently, there are three ways to add drugs to the anesthesia vaporizer: free filling method (filler), quick filling method (quickfiller), and plug-in adapter filling method (keyfiller). According to different anesthesia methods (local anesthesia, general anesthesia), and the need to provide anesthesia to the patient in different time periods and quantities according to the situation during anesthesia, it is particularly important to quantitatively control the amount of anesthesia provided to the patient each time during the anesthesia process; when using an anesthesia vaporizer to store anesthetics and evaporate them for the patient to inhale into the body, the amount of anesthetics required for each anesthesia is difficult to control, which is not conducive to accurate medication for patients. Summary of the invention

[0004] In order to solve the above problems, the present invention designs an anesthetic quantitative delivery device for an anesthesia machine in an operating room, which can provide anesthesia to the patient in a quantitative manner according to the patient's condition and anesthesia plan.

[0005] In order to solve the above technical problems and achieve the above technical effects, the present invention is implemented through the following technical contents:

[0006] An anesthetic quantitative delivery device for an anesthesia machine in an operating room, comprising an anesthesia machine, an anesthesia vaporizer, a housing, a liquid storage cylinder, an adapting mechanism, a pushing mechanism, a quantitative mechanism, an exhaust mechanism, and a controller;

[0007] The shell is hollow inside, and an observation window is provided on the outer wall of the shell; the liquid storage cylinder is a hollow cylinder, and a scale is provided on the outer wall of the liquid storage cylinder. The liquid storage cylinder is arranged in the shell, and a piston is provided in the liquid storage cylinder;

[0008] The adapter mechanism includes an adapter cover, a liquid inlet pipe, and an adapter sleeve. The adapter sleeve is a threaded sleeve, a thimble is arranged inside the adapter sleeve, the adapter sleeve is arranged on the housing, the two ends of the liquid inlet pipe are respectively connected to the liquid storage cylinder and the adapter sleeve, and a first one-way valve is arranged inside the liquid inlet pipe; the adapter cover is a funnel-shaped elastic silicone material, a bottom ring located at the large-mouth end of the adapter cover and an elastic card arranged on the side wall of the adapter cover are arranged in the inner wall of the adapter cover, a connecting screw sleeve matching the adapter sleeve is arranged at the small-mouth end of the adapter cover, and a second one-way valve is arranged in the connecting screw sleeve;

[0009] The pushing mechanism is arranged in the housing, the pushing mechanism is connected to the piston, and a positioning plate is arranged on the pushing mechanism;

[0010] The quantitative mechanism comprises an adjusting screw, an adjusting screw sleeve, a positioning ring, an auxiliary ring, a support rod and a connecting rod; one end of the adjusting screw is rotatably connected to the inner bottom end of the shell, and the other end passes through the shell and is provided with an adjusting cap; the adjusting screw sleeve is arranged on the adjusting screw; the positioning ring and the auxiliary ring are both slidably sleeved on the liquid storage cylinder, the positioning ring and the auxiliary ring are connected by the supporting rod, and the auxiliary ring is connected to the adjusting screw sleeve by the connecting rod;

[0011] The exhaust mechanism comprises a pipette, a connector, a first electrode sheet, and a battery; one end of the pipette passes through the shell and is connected to the liquid storage cylinder; a liquid outlet channel is provided in the connector, one end of the liquid outlet channel is connected to the pipette, and a third one-way valve is provided in the liquid outlet channel; the first electrode sheet is symmetrically arranged on the inner wall of the liquid outlet channel close to the third one-way valve;

[0012] The piston and the inner bottom end of the liquid storage tube away from the pipette are provided with second electrode sheets that cooperate with each other; the positioning disk and the auxiliary ring are provided with third electrode sheets that cooperate with each other;

[0013] The controller is electrically connected to the battery, the first electrode sheet, the second electrode sheet, the third electrode sheet, and the pushing mechanism.

[0014] Furthermore, it also includes a leveling mechanism; the leveling mechanism includes a level ruler and an adjusting column foot, the level ruler is symmetrically arranged on the top end of the shell, and the adjusting column foot is symmetrically arranged on the bottom end of the shell through threads.

[0015] Furthermore, four elastic cards are symmetrically arranged.

[0016] Furthermore, an observation glass is provided at the window.

[0017] Furthermore, the pushing mechanism includes a motor, a pushing screw, and a pushing screw sleeve; the motor is arranged in a shell, the pushing screw is connected to the output end of the motor, the pushing screw sleeve is a hollow cylinder with a broken end, the pushing screw sleeve is arranged on the outside of the pushing screw through a threaded sleeve, the closed end of the pushing screw sleeve passes through a liquid storage cylinder and is connected to the piston, and a clamping strip is provided on the outer wall of the pushing screw sleeve; the bottom end of the liquid storage cylinder is provided with a groove that cooperates with the clamping strip.

[0018] Furthermore, the liquid storage cylinder is vertically arranged in the shell; and the pushing mechanism is located below the liquid storage cylinder.

[0019] Another object of the present invention is to provide an application of an anesthetic quantitative delivery device for an operating room anesthesia machine in anesthetic delivery:

[0020] Open the bottle containing the anesthetic, put the large mouth of the adapter cover upside down on the bottle containing the anesthetic, clamp the bottle with an elastic card, wrap the bottle mouth with the adapter cover made of elastic silicone material, connect the adapter cover with the connecting screw sleeve, so that the adapter cover, the anesthetic bottle and the adapter sleeve are connected, and in the process of rotating the connecting screw sleeve, the ejector pin opens the second one-way valve, and the anesthetic enters the liquid inlet pipe;

[0021] The power supply of the push mechanism is pressed, and the controller controls the push mechanism to move downward, and the push mechanism drives the piston to move downward, and negative pressure is generated in the liquid storage cylinder to open the first one-way valve, so that the anesthetic is sucked into the liquid storage cylinder. As the piston moves downward and contacts the bottom end of the liquid storage cylinder, the second electrode sheet is energized after contact, and the controller disconnects the power supply of the push mechanism, and the push mechanism stops moving;

[0022] The power supply of the exhaust mechanism is pressed, the power supply of the forward movement of the push mechanism is turned on, the push mechanism pushes the piston upward, the third one-way valve is opened, and the air in the liquid storage cylinder is discharged. During the movement of the piston, the anesthetic is pushed into the liquid outlet channel to contact the first electrode sheet. After the first electrode sheet is powered on, the power supply of the push mechanism is disconnected, the push mechanism stops working, and the controller turns off the power switch of the first electrode sheet;

[0023] Connect the connector to the anesthesia vaporizer, turn the adjusting cap to drive the adjusting screw to rotate, drive the adjusting screw sleeve to move upward, and thus drive the positioning ring to move upward to coincide with the zero scale line at the top of the liquid storage cylinder (zero adjustment);

[0024] According to the amount of anesthetic required by the patient, the adjusting cap is rotated in the opposite direction to drive the adjusting screw to rotate, and the adjusting screw sleeve moves downward to drive the positioning ring to move downward to the anesthetic scale required by the patient, and the upward switch of the pushing mechanism is turned on again. The pushing mechanism drives the piston and the positioning plate to move upward, and the third one-way valve is opened to inject the anesthetic into the anesthesia vaporizer. The positioning plate moves upward to contact the auxiliary ring, and the third electrode circuit is turned on. The pushing mechanism stops working, and the anesthetic required by the patient is quantitatively injected into the anesthesia vaporizer.

[0025] The beneficial effects of the present invention are:

[0026] 1. By setting up a shell, a liquid storage cylinder, an adapting mechanism, a pushing mechanism, a quantitative mechanism, an exhaust mechanism, and a controller, the liquid storage cylinder can transfer the anesthetic in the anesthesia bottle and store it under the action of the adapting mechanism and the pushing mechanism, and the exhaust mechanism can exhaust the air in the liquid storage cylinder, so as to accurately control the amount of anesthetic required by the patient each time, and cooperate with the quantitative mechanism to control the amount of anesthetic in the liquid storage cylinder transferred to the anesthetic evaporator, thereby accurately controlling the anesthetic dose provided to the patient each time.

[0027] 2. By providing an adapter cover and an elastic card made of elastic silicone material, the adapter mechanism can be connected to anesthetic bottles of different specifications.

[0028] 3. By setting a leveling mechanism, the shell level can be adjusted so that the liquid level of the anesthetic in the liquid storage cylinder is level, which is convenient for ensuring the accuracy of the transferred anesthetic dose when the anesthetic is quantitatively transferred.

[0029] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the anesthetic quantitative delivery device used in the anesthesia machine in the operating room of the present invention;

[0032] Figure 2 It is a schematic structural diagram of a leveling mechanism of an anesthetic quantitative delivery device for an anesthesia machine in an operating room according to the present invention;

[0033] Figure 3 It is a schematic diagram of the internal structure of the anesthetic quantitative delivery device used in the anesthesia machine in the operating room of the present invention;

[0034] Figure 4 It is a schematic diagram of the structure of the adapting mechanism of the anesthetic quantitative delivery device used in the anesthesia machine in the operating room of the present invention;

[0035] Figure 5 It is a schematic diagram of the elastic card structure of the anesthetic quantitative delivery device used in the anesthesia machine in the operating room of the present invention;

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1-housing, 101-observation window, 2-adaptation mechanism, 201-adaptation set, 202-liquid inlet pipe, 203-adaptation cover, 204-connecting screw sleeve, 205-second one-way valve, 206-bottom ring, 207-elastic card, 301-pipette, 302-connector, 303-liquid outlet channel, 401-adjusting cap, 402-adjusting screw, 403-connecting rod, 404-adjusting screw sleeve, 405-positioning ring, 406-support rod, 407-auxiliary ring, 501-level ruler, 502-adjusting column foot, 6-liquid storage cylinder, 601-scale, 602-piston, 701-positioning plate, 702-motor, 703-sliding screw, 704-sliding screw sleeve, 705-card strip, 8-controller. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In order to more clearly describe the content of the present invention, the following description is made in conjunction with specific embodiments:

[0040] Example 1

[0041] See also Figure 1-5 As shown, the anesthetic quantitative delivery device for an anesthesia machine in an operating room includes an anesthesia machine, an anesthesia vaporizer, a housing 1, a liquid storage cylinder 6, an adapter mechanism 2, a pushing mechanism, a quantitative mechanism, an exhaust mechanism, and a controller 8;

[0042] The shell 1 is hollow inside, and an observation window 101 is provided on the outer wall of the shell 1, and an observation glass is provided at the window; the liquid storage cylinder 6 is a hollow cylinder inside, and a scale 601 is provided on the outer wall of the liquid storage cylinder 6. The liquid storage cylinder 6 is arranged in the shell 1, and a piston 602 is provided in the liquid storage cylinder 6; the scale 601 on the liquid storage cylinder 6 can be observed through the observation window 101 so as to be aligned with the quantitative mechanism, thereby controlling the amount of anesthetic entering the anesthetic vaporizer;

[0043] The adapting mechanism 2 comprises an adapting cover 203, a liquid inlet pipe 202 and an adapting sleeve 201. The adapting sleeve 201 is a threaded sleeve, a thimble is arranged in the adapting sleeve 201, the adapting sleeve 201 is arranged on the housing 1, the two ends of the liquid inlet pipe 202 are respectively connected to the liquid storage cylinder 6 and the adapting sleeve 201, and a first one-way valve is arranged in the liquid inlet pipe 202; the adapting cover 203 is a funnel-shaped elastic silicone material, and the inner wall of the adapting cover 203 is provided with a bottom ring 206 located at the large end of the adapting cover 203 and an elastic card 207 arranged on the side wall of the adapting cover 203, four elastic cards 207 are symmetrically arranged, and the elastic card 207 wraps the intoxicant bottle; the small end of the adapting cover 203 is provided with a connecting screw sleeve 204 that cooperates with the adapting sleeve 201, and a second one-way valve 205 is arranged in the connecting screw sleeve 204; the second one-way valve 205 is opened after the thimble cooperates with the second one-way valve 205.

[0044] The pushing mechanism is arranged in the housing 1, the pushing mechanism is connected to the piston 602, and a positioning plate 701 is arranged on the pushing mechanism;

[0045] The quantitative mechanism includes an adjusting screw 402, an adjusting screw sleeve 404, a positioning ring 405, an auxiliary ring 407, a support rod 406, and a connecting rod 403; one end of the adjusting screw 402 is rotatably connected to the inner bottom end of the housing 1, and the other end passes through the housing 1 and is provided with an adjusting cap 401; the adjusting screw sleeve 404 is arranged on the adjusting screw 402; the positioning ring 405 and the auxiliary ring 407 are both slidably sleeved on the liquid storage cylinder 6, and the positioning ring 405 and the auxiliary ring 407 are connected by the supporting rod 406, and the auxiliary ring 407 is connected to the adjusting screw sleeve 404 through the connecting rod 403;

[0046] The exhaust mechanism includes a pipette 301, a connector 302, a first electrode sheet, and a battery; one end of the pipette 301 passes through the housing 1 and is connected to the liquid storage cylinder 6; a liquid outlet channel 303 is provided in the connector 302, one end of the liquid outlet channel 303 is communicated with the pipette 301, and a third one-way valve is provided in the liquid outlet channel 303; the first electrode sheet is symmetrically arranged on the inner wall of the liquid outlet channel 303 close to the third one-way valve;

[0047] The piston 602 and the inner bottom end of the liquid storage cylinder 6 away from the pipette 301 are provided with a second electrode sheet that cooperates with each other; the positioning plate 701 and the auxiliary ring 407 are provided with a third electrode sheet that cooperates with each other;

[0048] The controller 8 is electrically connected to the battery, the first electrode sheet, the second electrode sheet, the third electrode sheet, and the pushing mechanism.

[0049] Example 2

[0050] Based on Example 1, a leveling mechanism is included; the leveling mechanism includes a level ruler 501 and an adjusting column foot 502, the level ruler 501 is symmetrically arranged on the top end of the shell 1, and the adjusting column foot 502 is symmetrically arranged on the bottom end of the shell 1 through threads.

[0051] During specific implementation, the adjusting column foot 502 is rotated to adjust the position of the housing 1 , and the level ruler 501 on the housing 1 is observed. The adjusting column foot 502 is adjusted to make the level ruler 501 level.

[0052] Example 3

[0053] Based on Example 1, the pushing mechanism includes a motor 702, a pushing screw 703, and a pushing screw sleeve 704; the motor 702 is arranged in the shell 1, the pushing screw 703 is connected to the output end of the motor 702, the pushing screw sleeve 704 is a hollow cylinder with a broken end, the pushing screw sleeve 704 is arranged on the outside of the pushing screw 703 through a threaded sleeve, the closed end of the pushing screw sleeve 704 passes through the liquid storage cylinder 6 and is connected to the piston 602, and a clamping strip 705 is provided on the outer wall of the pushing screw sleeve 704; the bottom end of the liquid storage cylinder 6 is provided with a groove that cooperates with the clamping strip 705.

[0054] During specific implementation, the motor 702 drives the push screw 703 to rotate, and the push screw 703 is threadedly matched with the push screw sleeve 704. Under the cooperation of the clamping strip 705 and the groove, the push screw sleeve 704 moves, thereby driving the piston 602 to move.

[0055] Example 4

[0056] Based on Example 2, the liquid storage cylinder 6 is vertically arranged in the shell 1; the pushing mechanism is located below the liquid storage cylinder 6. After the shell 1 is leveled, the liquid level in the liquid storage cylinder 6 is parallel to the horizontal plane, which is convenient for observation and accurate quantification when adjusting the quantitative mechanism.

[0057] Example 5

[0058] Another object of the present invention is to provide an application of an anesthetic quantitative delivery device for an operating room anesthesia machine in anesthetic delivery:

[0059] Open the bottle containing the anesthetic, and put the large mouth end of the adapter cover 203 upside down on the bottle containing the anesthetic, and the elastic card 207 clamps the bottle, and the adapter cover 203 made of elastic silicone material wraps the bottle mouth, and the connecting screw sleeve 204 is used to connect with the adapter sleeve 201, so that the adapter cover 203, the anesthetic bottle and the adapter sleeve 201 are connected. In the process of rotating the connecting screw sleeve 204, the ejector pin opens the second one-way valve 205, and the anesthetic enters the liquid inlet pipe 202;

[0060] The reverse switch power of the push mechanism is pressed, and the controller 8 controls the push mechanism to move downward, and the push mechanism drives the piston 602 to move downward, and negative pressure is generated in the liquid storage cylinder 6 to open the first one-way valve, so that the anesthetic is sucked into the liquid storage cylinder 6. As the piston 602 moves downward and contacts the bottom end of the liquid storage cylinder 6, the second electrode sheet is energized after contact, and the controller 8 disconnects the reverse switch power of the push mechanism, and the push mechanism stops moving;

[0061] The power supply of the exhaust mechanism is pressed, the power supply of the forward movement of the push mechanism is turned on, the push mechanism pushes the piston 602 upward, the third one-way valve is opened, and the air in the liquid storage cylinder 6 is discharged. During the movement of the piston 602, the anesthetic is pushed into the liquid outlet channel 303 to contact the first electrode sheet. After the first electrode sheet is powered on, the power supply of the push mechanism is disconnected, the push mechanism stops working, and the controller 8 turns off the power switch of the first electrode sheet;

[0062] Connect the connector 302 to the anesthesia vaporizer, rotate the adjusting cap 401 to drive the adjusting screw 402 to rotate, drive the adjusting screw sleeve 404 to move upward, and thus drive the positioning ring 405 to move upward to coincide with the zero scale 601 line at the top of the liquid storage cylinder 6 (zero adjustment);

[0063] According to the amount of anesthetic required by the patient, the adjusting cap 401 is rotated in the opposite direction to drive the adjusting screw 402 to rotate, and the adjusting screw sleeve 404 moves downward to drive the positioning ring 405 to move downward to the anesthetic scale 601 required by the patient, and the forward switch of the pushing mechanism is turned on again, and the pushing mechanism drives the piston 602 and the positioning plate 701 to move upward, and the third one-way valve is opened to inject the anesthetic into the anesthesia vaporizer, and the positioning plate 701 moves upward to contact with the auxiliary ring 407, and the third electrode circuit is turned on, and the pushing mechanism stops working, and the anesthetic required by the patient is quantitatively injected into the anesthesia vaporizer.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A quantitative anesthetic delivery device for an anesthesia machine in an operating room, comprising an anesthesia machine and an anesthesia vaporizer, characterized in that: It also includes a housing, a liquid storage cylinder, an adapting mechanism, a pushing mechanism, a quantitative mechanism, an exhaust mechanism, and a controller; The shell is hollow inside, and an observation window is provided on the outer wall of the shell; the liquid storage cylinder is a hollow cylinder, and a scale is provided on the outer wall of the liquid storage cylinder. The liquid storage cylinder is arranged in the shell, and a piston is provided in the liquid storage cylinder; The adapter mechanism includes an adapter cover, a liquid inlet pipe, and an adapter sleeve. The adapter sleeve is a threaded sleeve, a thimble is arranged inside the adapter sleeve, the adapter sleeve is arranged on the housing, the two ends of the liquid inlet pipe are respectively connected to the liquid storage cylinder and the adapter sleeve, and a first one-way valve is arranged inside the liquid inlet pipe; the adapter cover is a funnel-shaped elastic silicone material, a bottom ring located at the large-mouth end of the adapter cover and an elastic card arranged on the side wall of the adapter cover are arranged in the inner wall of the adapter cover, a connecting screw sleeve matching the adapter sleeve is arranged at the small-mouth end of the adapter cover, and a second one-way valve is arranged in the connecting screw sleeve; The pushing mechanism is arranged in the housing, the pushing mechanism is connected to the piston, and a positioning plate is arranged on the pushing mechanism; The quantitative mechanism comprises an adjusting screw, an adjusting screw sleeve, a positioning ring, an auxiliary ring, a support rod and a connecting rod; one end of the adjusting screw is rotatably connected to the inner bottom end of the shell, and the other end passes through the shell and is provided with an adjusting cap; the adjusting screw sleeve is arranged on the adjusting screw; the positioning ring and the auxiliary ring are both slidably sleeved on the liquid storage cylinder, the positioning ring and the auxiliary ring are connected by the supporting rod, and the positioning ring is connected to the adjusting screw sleeve by the connecting rod; The exhaust mechanism comprises a pipette, a connector, a first electrode sheet, and a battery; one end of the pipette passes through the shell and is connected to the liquid storage cylinder; a liquid outlet channel is provided in the connector, one end of the liquid outlet channel is connected to the pipette, and a third one-way valve is provided in the liquid outlet channel; the first electrode sheet is symmetrically arranged on the inner wall of the liquid outlet channel close to the third one-way valve; The piston and the inner bottom end of the liquid storage tube away from the pipette are provided with second electrode sheets that cooperate with each other; the positioning disk and the auxiliary ring are provided with third electrode sheets that cooperate with each other; The controller is electrically connected to the battery, the first electrode sheet, the second electrode sheet, the third electrode sheet, and the pushing mechanism; The anesthetic quantitative delivery device for the operating room anesthesia machine also includes a leveling mechanism; the leveling mechanism includes a level ruler and an adjustment column foot, the level ruler is symmetrically arranged on the top end of the shell, and the adjustment column foot is symmetrically arranged on the bottom end of the shell through a thread; The pushing mechanism includes a motor, a pushing screw and a pushing screw sleeve; the motor is arranged in a shell, the pushing screw is connected to the output end of the motor, the pushing screw sleeve is a hollow cylinder with an open end, the pushing screw sleeve is arranged on the outside of the pushing screw through a threaded sleeve, the closed end of the pushing screw sleeve passes through a liquid storage cylinder and is connected to a piston, and a clamping strip is provided on the outer wall of the pushing screw sleeve; a groove cooperating with the clamping strip is provided on the bottom end of the liquid storage cylinder.

2. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 1, characterized in that: The elastic cards are symmetrically arranged in four strips.

3. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 1, characterized in that: An observation glass is provided at the observation window.

4. The anesthetic quantitative delivery device for an operating room anesthesia machine according to claim 1, characterized in that: The liquid storage cylinder is vertically arranged in the shell; and the pushing mechanism is located below the liquid storage cylinder.

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