Concentration-adjustable anesthesia device

Abstract

The invention discloses a concentration-adjustable anesthesia device, and belongs to the field of medical instruments, the concentration-adjustable anesthesia device comprises a base, an annular groove is formed in the base, a sliding rod is slidably connected in the annular groove, a circular plate is fixedly connected to the top of the sliding rod, and an annular rack is fixedly connected to the inner surface of the circular plate; the upper surface of the base is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with a fourth gear. According to the liquid mixing device, when a movable block enters a containing bin, the interior of a volume bin is filled with liquid, so that the amount of the liquid entering the mixing bin is constant all the time, the influence of pressure generated by the liquid in the containing bin is avoided, it is guaranteed that the amount of the liquid flowing into the mixing bin every time is constant, and the accuracy of follow-up proportioning is guaranteed; and friction force is reduced when the balls make contact with the circular plate and the second trapezoidal block, abrasion of the balls is avoided, and errors caused by abrasion are avoided.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more particularly to a concentration-adjustable anesthesia device. Background Art

[0002] Many diseases require surgical treatment, which usually requires anesthesia; however, there may be certain errors in the concentration of artificially prepared anesthetic solutions. Too high a concentration of anesthetic can cause discomfort to the human body, may be toxic to the nerves, and have adverse effects on human health. When the concentration is too low, the patient is likely to become aware during the operation, restore the body's ability to perceive pain, increase the patient's pain, and may affect the efficacy of the drug and the patient's intraoperative volume management, affecting the progress of the operation; and the existing anesthesia care device is not convenient for controlling the concentration of the anesthetic. Since different anesthetic concentrations are required for different patient conditions, it cannot meet the usage needs of different patients and is very inconvenient to operate.

[0003] In order to solve the above technical problems, a Chinese patent with authorization announcement number CN114931687B discloses a concentration-adjustable anesthesia device for anesthesia department. This application can accurately control the flow in the liquid outlet pipe by controlling the size of the overlapping area between the L-shaped flow channel in the valve plug and the liquid outlet pipe (i.e., the upward movement distance of the valve plug), thereby controlling the ratio of anesthetic and diluent; however, the flow rate of the liquid entering the L-shaped flow channel and the liquid outlet pipe will change with the height of the liquid. Due to the ratio, the amount used in the anesthesia tank and the dilution tank is inconsistent, resulting in inconsistent liquid heights on both sides and inconsistent liquid flow rates on both sides. The actual outflow flow is inconsistent with the required amount, which will cause deviations in anesthetic concentration and greatly affect the use of anesthetics. Summary of the Invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide an anesthesia device with adjustable concentration.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A concentration-adjustable anesthesia device comprises a base, an annular groove is provided inside the base, a slide rod is slidably connected to the inside of the annular groove, a circular plate is fixedly connected to the top of the slide rod, a mixing chamber is fixedly connected to the middle of the upper surface of the base, and a feeding assembly for anesthetic proportioning is symmetrically fixedly connected to the upper surface of the mixing chamber.

[0007] The feeding component includes a storage bin fixed on the upper surface of the mixing bin and a second trapezoidal block arranged on the circular plate. The lower surface of the storage bin is fixedly connected with a cylinder. An active block is slidably connected inside the cylinder. A volume bin is opened inside the active block. A feed inlet is opened on the inner surface of the volume bin. The bottom of the inner surface of the cylinder is fixedly connected with a fixed plate. An L-shaped rod is slidably connected inside the fixed plate. A first spring is sleeved on the outer surface of the L-shaped rod. The bottom of the second trapezoidal block is fixedly connected with a ball. The outer surface of the cylinder is fixedly connected with a discharge pipe. A regulating component for adjusting the number of the second trapezoidal blocks is arranged on the lower surface of the circular plate.

[0008] Further, one side of the discharge pipe extends into the mixing bin. The top of the L-shaped rod is fixedly connected with the bottom of the active block. The outlet of the volume bin is L-shaped. The top and bottom of the first spring are respectively fixedly connected with the active block and the fixed plate. An annular rack is fixedly connected to the inner surface of the circular plate. A driving motor is fixedly connected to the upper surface of the base. The output end of the driving motor is fixedly connected with a fourth gear. A solenoid valve is arranged at the bottom of the mixing bin.

[0009] Further, there are two groups of the second trapezoidal blocks. Each group of the second trapezoidal blocks has six. Each of the second trapezoidal blocks is evenly arranged. The two groups of the second trapezoidal blocks are located on different circumferences. The orbits of the two balls rotating are located on different circumferences. The movement orbits of the two balls respectively correspond to the two groups of the second trapezoidal blocks.

[0010] Further, the regulating component includes two U-shaped plates fixed on the lower surface of the circular plate. Two slots are opened inside the U-shaped plates. A pull rod is slidably connected inside the U-shaped plates. Rectangular rods are symmetrically and fixedly connected to the outer surface of the pull rod.

[0011] Further, the top of the pull rod is fixedly connected with the bottom of the second trapezoidal block. The second trapezoidal block is slidably connected with the circular plate. The rectangular rod is slidably adapted to the slot. A round handle is fixedly connected to the bottom of the pull rod.

[0012] Further, a discharging component for exhausting the residual liquid inside the discharge pipe is arranged on the outer surface of the discharge pipe. The discharging component includes a C-shaped pipe fixed on the outer surface of the discharge pipe and two first trapezoidal blocks fixed on the inner edge of the top of the circular plate. A second one-way valve is fixedly connected to the bottom of the C-shaped pipe. A piston cylinder is fixedly connected to the bottom of the second one-way valve. A piston is slidably connected inside the piston cylinder. A second spring is fixedly connected to the top of the piston. A first one-way valve is fixedly connected to the top of the piston cylinder. A push rod is fixedly connected to the bottom of the piston.

[0013] Furthermore, the C-shaped tube is located above the discharge pipe, the top of the second spring is fixedly connected to the inner top of the piston cylinder, the flow direction of the second one-way valve is from the piston cylinder to the inside of the C-shaped tube, and the flow direction of the first one-way valve is from the outside to the inside of the piston cylinder.

[0014] Furthermore, a mixing assembly is provided at the bottom of the mixing bin, and the mixing assembly includes a rotating shaft rotating on the top of the mixing bin, a transmission rod rotating on the outer surface of the mixing bin, and an exhaust assembly arranged at the top edge of the mixing bin, the top and bottom of the transmission rod are respectively fixedly connected with a second gear and a third gear, the top of the rotating shaft is fixedly connected with a first gear, the outer surfaces of the first gear and the second gear are sleeved with a synchronous belt, and the outer surface of the rotating shaft is provided with a plurality of stirring blades.

[0015] Furthermore, the third gear is meshed with the annular rack, the bottom of the rotating shaft extends to the interior of the mixing bin, and the stirring blades are provided in three groups, each group including three stirring blades.

[0016] Furthermore, the exhaust assembly includes an externally threaded exhaust cylinder fixed at the top edge of the mixing bin, the outer surface of the externally threaded exhaust cylinder is threadedly connected to a threaded cover, and the inner surface of the externally threaded exhaust cylinder is provided with a breathable and waterproof membrane.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This solution is provided with a feeding component. When the movable block enters the interior of the holding bin, the liquid fills the interior of the volume bin, so that the amount of liquid entering the interior of the mixing bin is always constant, avoiding the influence of the pressure generated by the liquid inside the holding bin, ensuring that the amount flowing into the interior of the mixing bin each time is constant, and ensuring the accuracy of subsequent proportions. In addition, a ball bearing is provided to reduce friction when the ball bearing contacts the circular plate and the second trapezoidal block, thereby avoiding wear of the ball bearing and errors caused by wear.

[0019] 2. This solution is equipped with an adjustment component to adjust the number of the second trapezoidal blocks in the two groups. The ratio of the working number of the two groups of second trapezoidal blocks is the mixing ratio, which accurately controls the mixing ratio of the diluent and anesthetic, accurately obtains the required concentration of anesthetic, avoids medical accidents caused by concentration deviation of anesthetic, and improves the safety and reliability of the device.

[0020] 3. This solution is provided with a discharge assembly. Under the action of the first trapezoidal block, the push rod and the piston are pushed upward synchronously. The piston transports the gas inside the piston cylinder to the inside of the discharge pipe through the second one-way valve and the C-shaped tube. The air flow quickly enters the inside of the discharge pipe through the C-shaped tube, and blows the remaining liquid in the discharge pipe to the inside of the mixing bin, reducing the residual liquid and further improving the accuracy of the ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the structural schematic diagram of the present invention;

[0022] Figure 2 is the structural schematic diagram of the feeding component of the present invention;

[0023] Figure 3 is the structural schematic diagram of the second trapezoidal block of the present invention;

[0024] Figure 4 is the structural schematic diagram of the circular plate of the present invention;

[0025] Figure 5 is the structural schematic diagram of the adjusting component of the present invention;

[0026] Figure 6 is the structural schematic diagram of the discharging component of the present invention;

[0027] Figure 7 is the structural schematic diagram of the mixing component of the present invention Figure 1 ;

[0028] Figure 8 is the structural schematic diagram of the mixing component of the present invention Figure 2 ;

[0029] Figure 9 is the Figure 8 enlarged view of part A of the present invention.

[0030] Explanation of the reference numerals in the figure:

[0031] 1. Base; 2. Annular groove; 3. Slide bar; 4. Circular plate; 5. Mixing chamber;

[0032] 6. Feeding component; 61. Holding bin; 62. Cylinder; 63. Movable block; 64. Feed inlet; 65. Volume bin; 66. Discharge pipe; 67. First spring;

[0033] 68. Adjusting component; 681. C-shaped plate; 682. Groove; 683. Pull rod; 684. Rectangular rod;

[0034] 69. Discharging component; 691. Piston cylinder; 692. Thrust rod; 693. Piston; 694. Second spring; 695. First one-way valve; 696. C-shaped pipe; 697. Second one-way valve; 698. First trapezoidal block;

[0035] 610. Fixed plate; 611. Ball; 612. Second trapezoidal block; 613. L-shaped rod;

[0036] 7. Mixing component; 71. Rotating shaft; 72. First gear; 73. Synchronous belt; 74. Second gear; 75. Transmission rod; 76. Third gear; 77. Stirring blade;

[0037] 78. Exhaust assembly; 781. Externally threaded exhaust pipe; 782. Threaded cover; 783. Breathable and waterproof membrane;

[0038] 8. Fourth gear; 9. Ring rack; 10. Solenoid valve; 11. Drive motor. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] See also Figures 1 to 9 A concentration-adjustable anesthesia device includes a base 1, an annular groove 2 is opened inside the base 1, a slide rod 3 is slidably connected to the inside of the annular groove 2, a circular plate 4 is fixedly connected to the top of the slide rod 3, a mixing chamber 5 is fixedly connected to the middle of the upper surface of the base 1, and a feeding component 6 for anesthetic proportioning is symmetrically fixedly connected to the upper surface of the mixing chamber 5.

[0041] like Figure 2-3 As shown, the feeding component 6 includes a holding bin 61 fixed on the upper surface of the mixing bin 5 and a second trapezoidal block 612 arranged on the circular plate 4, the lower surface of the holding bin 61 is fixedly connected to the cylinder 62, the interior of the cylinder 62 is slidably connected to the movable block 63, the interior of the movable block 63 is provided with a volume bin 65, the inner surface of the volume bin 65 is provided with a feed port 64, the bottom of the inner surface of the cylinder 62 is fixedly connected to a fixed plate 610, the interior of the fixed plate 610 is slidably connected to an L-shaped rod 613, the outer surface of the L-shaped rod 613 is sleeved with a first spring 67, the bottom of the second trapezoidal block 612 is fixedly connected to a ball 611, the outer surface of the cylinder 62 is fixedly connected to a discharge pipe 66, and the lower surface of the circular plate 4 is provided with an adjustment component 68 for adjusting the number of the second trapezoidal blocks 612.

[0042] One side of the discharge pipe 66 extends to the interior of the mixing bin 5, the top of the L-shaped rod 613 is fixedly connected to the bottom of the movable block 63, the outlet of the volume bin 65 is L-shaped, the top and bottom of the first spring 67 are fixedly connected to the movable block 63 and the fixed plate 610 respectively, the inner surface of the circular plate 4 is fixedly connected to the annular rack 9, the upper surface of the base 1 is fixedly connected to the drive motor 11, the output end of the drive motor 11 is fixedly connected to the fourth gear 8, and an electromagnetic valve 10 is provided at the bottom of the mixing bin 5.

[0043] There are two sets of the second trapezoidal blocks 612, with six second trapezoidal blocks 612 in each set. Each second trapezoidal block 612 is evenly arranged. The two sets of second trapezoidal blocks 612 are located on different circumferences. The trajectories of the rotation of the two balls 611 are located on different circumferences, and the movement trajectories of the two balls 611 correspond to the two sets of second trapezoidal blocks 612 respectively.

[0044] When preparing the proportion of the anesthetic, first start the driving motor 11 to drive the fourth gear 8 to rotate. The fourth gear 8 drives the whole circular plate 4 to rotate through the annular rack 9, and drives the second trapezoidal block 612 to rotate synchronously. When the second trapezoidal block 612 rotates, the second trapezoidal block 612 approaches the ball 611, causing the ball 611 to slide on the inclined surface of the second trapezoidal block 612, pushing the whole L-shaped rod 613 upward, and pushing the movable block 63 to move upward inside the cylinder 62, exposing the feed port 64 inside the storage bin 61. The liquid outlet of the volume bin 65 is staggered from the discharge pipe 66. At this time, the liquid enters the inside of the volume bin 65 through the feed port 64. When the second trapezoidal block 612 leaves the ball 611, under the elastic force of the first spring 67, the movable block 63 is driven to reset, so that the liquid outlet of the volume bin 65 coincides with the discharge pipe 66, and the feed port 64 is sealed, enabling the liquid to enter the inside of the mixing bin 5. Thus, the amount of the liquid flowing out of the volume bin 65 is always constant, avoiding being affected by the pressure generated by the liquid inside the storage bin 61, ensuring that the amount flowing into the mixing bin 5 each time is constant, guaranteeing the accuracy of the subsequent proportioning. And the ball 611 is provided, which reduces the friction when the ball 611 contacts the circular plate 4 and the second trapezoidal block 612, avoiding the wear of the ball 611 and the error caused by the wear.

[0045] As Figure 5 shown, the adjusting component 68 includes two sets of U-shaped plates 681 fixed on the lower surface of the circular plate 4. Two slots 682 are opened inside the U-shaped plates 681. A pull rod 683 is slidably connected inside the U-shaped plates 681. Rectangular rods 684 are symmetrically and fixedly connected to the outer surface of the pull rod 683.

[0046] The top of the pull rod 683 is fixedly connected to the bottom of the second trapezoidal block 612. The second trapezoidal block 612 is slidably connected with the circular plate 4. The rectangular rod 684 is slidably adapted to the slot 682. The bottom of the pull rod 683 is fixedly connected with a round handle.

[0047] By cooperating with the volume bin 65 and the feed port 64, the amount of liquid discharged from the volume bin 65 each time can be guaranteed to be consistent. However, in different surgeries, different concentrations of anesthetics are required, so the ratio between the diluent and the anesthetic needs to be adjusted, and the number of second trapezoidal blocks 612 needs to be changed to change the number of times the volume bin 65 extends into the storage bin 61 to take out the liquid. Rotate the pull rod 683 to drive the two rectangular rods 684 to rotate ninety degrees, and rotate the rectangular rods 684 to the top of the slot 682. At this time, pull the pull rod 683 to drive the second trapezoidal block 612 to move downward synchronously, so that the second trapezoidal block 612 is removed from the top of the circular plate 4 and stored inside the circular plate 4. The remaining second trapezoidal blocks 612 continue to work, and the number of the second trapezoidal blocks 612 in the two groups is adjusted in this way. If the ratio of the diluent to the anesthetic is 3:1, the number of working second trapezoidal blocks 612 in a group corresponding to the ball bearings 611 below the storage bin 61 for the diluent is adjusted to three, and similarly, the number of the other group of second trapezoidal blocks 612 that need to work is adjusted to one. After the circular plate 4 rotates one circle, three portions of the diluent are taken and one portion of the anesthetic is taken, so that the ratio of the diluent to the anesthetic can be precisely controlled. Compared with the existing technical solutions, which change the flow rate by changing the lifting height of the push plate and have the disadvantage of being difficult to accurately control the specific ratio, this device accurately controls the mixing ratio to obtain the required concentration of anesthetic, avoids medical accidents caused by deviations in the anesthetic concentration, and improves the safety and reliability of the device.

[0048] like Figure 3 and Figure 6 As shown, the outer surface of the discharge pipe 66 is provided with a discharge assembly 69 for discharging the residual liquid inside the discharge pipe 66. The discharge assembly 69 includes a C-shaped tube 696 fixed on the outer surface of the discharge pipe 66 and two first trapezoidal blocks 698 fixed on the inner edge of the top of the circular plate 4. The bottom of the C-shaped tube 696 is fixedly connected to the second one-way valve 697, the bottom of the second one-way valve 697 is fixedly connected to the piston cylinder 691, the interior of the piston cylinder 691 is slidingly connected to the piston 693, the top of the piston 693 is fixedly connected to the second spring 694, the top of the piston cylinder 691 is fixedly connected to the first one-way valve 695, and the bottom of the piston 693 is fixedly connected to the push rod 692.

[0049] The C-shaped tube 696 is located above the discharge pipe 66, the top of the second spring 694 is fixedly connected to the inner top of the piston cylinder 691, the flow direction of the second one-way valve 697 is from the piston cylinder 691 to the inside of the C-shaped tube 696, and the flow direction of the first one-way valve 695 is from the outside to the inside of the piston cylinder 691.

[0050] During the proportioning, the liquid inside the storage bin 61 enters the interior of the mixing bin 5 through the volume bin 65 and the discharge pipe 66 in turn. However, since the discharge pipe 66 has a certain length, a small amount of liquid will remain inside the discharge pipe 66. It is necessary to drain the remaining liquid in time to minimize the error in the proportioning. When the circular plate 4 drives the two first trapezoidal blocks 698 to rotate at the same time, when it is about to complete a circle, the first trapezoidal block 698 contacts the push rod 692 and pushes the push rod 692 and the piston 693 upward synchronously. The piston 693 transports the gas inside the piston cylinder 691 to the interior of the discharge pipe 66 through the second one-way valve 697 and the C-shaped tube 696. The airflow quickly enters the interior of the discharge pipe 66 through the C-shaped tube 696, blowing the liquid remaining in the discharge pipe 66 to the interior of the mixing bin 5, reducing the residual liquid and further improving the accuracy of the proportioning.

[0051] like Figure 7-8 As shown, a mixing assembly 7 is provided at the bottom of the mixing bin 5, and the mixing assembly 7 includes a rotating shaft 71 rotating on the top of the mixing bin 5, a transmission rod 75 rotating on the outer surface of the mixing bin 5, and an exhaust assembly 78 arranged at the top edge of the mixing bin 5. The top and bottom of the transmission rod 75 are respectively fixedly connected with a second gear 74 and a third gear 76, and the top of the rotating shaft 71 is fixedly connected with a first gear 72. The outer surfaces of the first gear 72 and the second gear 74 are provided with a synchronous belt 73, and the outer surface of the rotating shaft 71 is provided with a plurality of stirring blades 77.

[0052] The third gear 76 is meshed with the annular rack 9 . The bottom of the rotating shaft 71 extends to the interior of the mixing chamber 5 . The stirring blades 77 are provided in three groups, and each group of stirring blades 77 includes three stirring blades.

[0053] like Figure 9 As shown, the exhaust assembly 78 includes an externally threaded exhaust cylinder 781 fixed at the top edge of the mixing chamber 5, the outer surface of the externally threaded exhaust cylinder 781 is threadedly connected to a threaded cover 782, and the inner surface of the externally threaded exhaust cylinder 781 is provided with a breathable and waterproof membrane 783.

[0054] When the diluent and anesthetic enter the mixing chamber 5, the circular plate 4 rotates to drive the annular rack 9 to rotate, and the annular rack 9 drives the transmission rod 75 to rotate through the third gear 76, and the transmission rod 75 drives the second gear 74 to rotate. The second gear 74 drives the first gear 72 to rotate synchronously through the synchronous belt 73, and the first gear 72 drives multiple stirring blades 77 to rotate through the rotating shaft 71 to mix the liquid inside the mixing chamber 5, so that the liquid can be fully mixed, and mixed and stirred synchronously during the proportioning, reducing the mixing time and improving work efficiency. At the same time, the breathable and waterproof membrane 783 can discharge the gas inside the mixing chamber 5, which not only ensures that the liquid enters the mixing chamber 5 smoothly, but also ensures that the gas inside the piston cylinder 691 can enter the inside of the discharge pipe 66. The threaded cover 782 can prevent impurities from entering the inside of the external threaded exhaust cylinder 781, ensuring the air permeability of the breathable and waterproof membrane 783.

[0055] When the second trapezoidal block 612 leaves the ball 611, the movable block 63 is reset under the elastic force of the first spring 67, so that the liquid outlet of the volume bin 65 coincides with the discharge pipe 66, and the feed port 64 is sealed, so that the liquid enters the interior of the mixing chamber 5, thereby preventing the liquid from being affected by the pressure generated by the liquid inside the volume bin 61.

[0056] The pull rod 683 is rotated to drive the two rectangular rods 684 to rotate 90 degrees, and the rectangular rods 684 are rotated to the top of the slot 682. At this time, the pull rod 683 is pulled to drive the second trapezoidal block 612 to move downward synchronously, so that the second trapezoidal block 612 is moved away from the top of the circular plate 4 and stored inside the circular plate 4. The remaining second trapezoidal blocks 612 continue to work. The ratio of the number of the two groups of working second trapezoidal blocks 612 is the matching ratio.

[0057] When the circular plate 4 simultaneously drives the two first trapezoidal blocks 698 to rotate and is about to complete one circle, the first trapezoidal block 698 contacts the push rod 692, pushing the push rod 692 and the piston 693 upward synchronously, and the piston 693 transports the gas inside the piston cylinder 691 to the inside of the discharge pipe 66 through the second one-way valve 697 and the C-shaped tube 696. The airflow quickly enters the inside of the discharge pipe 66 through the C-shaped tube 696, blowing the liquid remaining in the discharge pipe 66 into the inside of the mixing chamber 5, reducing the residual liquid and further improving the accuracy of the ratio.

[0058] The annular rack 9 drives the transmission rod 75 to rotate through the third gear 76, and the transmission rod 75 drives the second gear 74 to rotate. The second gear 74 drives the first gear 72 to rotate synchronously through the synchronous belt 73. The first gear 72 drives multiple stirring blades 77 to rotate through the rotating shaft 71 to mix the liquid inside the mixing chamber 5, so that the liquid can be fully mixed. The mixing and stirring are performed synchronously during the proportioning, which reduces the mixing time and improves work efficiency. At the same time, the breathable and waterproof membrane 783 can discharge the gas inside the mixing chamber 5, which not only ensures that the liquid can enter the mixing chamber 5 smoothly, but also ensures that the gas inside the piston cylinder 691 can enter the inside of the discharge pipe 66. The threaded cover 782 can prevent impurities from entering the inside of the external threaded exhaust cylinder 781, ensuring the air permeability of the breathable and waterproof membrane 783.

[0059] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A concentration-adjustable anesthesia device, including a base (1). An annular groove (2) is provided inside the base (1). A slide bar (3) is slidably connected inside the annular groove (2). The top of the slide bar (3) is fixedly connected to a circular plate (4). The middle of the upper surface of the base (1) is fixedly connected to a mixing chamber (5). Its characteristics are: Symmetrically fixedly connected to the upper surface of the mixing chamber (5) is a feeding component (6) for anesthetic ratio preparation. The feeding component (6) includes a storage bin (61) fixed to the upper surface of the mixing chamber (5) and a second trapezoidal block (612) arranged on the circular plate (4). A cylinder (62) is fixedly connected to the lower surface of the storage bin (61). An active block (63) is slidably connected inside the cylinder (62). A volume chamber (65) is provided inside the active block (63). A feed inlet (64) is provided on the inner surface of the volume chamber (65). A fixing plate (610) is fixedly connected to the bottom of the inner surface of the cylinder (62). An L-shaped rod (613) is slidably connected inside the fixing plate (610). A first spring (67) is sleeved on the outer surface of the L-shaped rod (613). A ball (611) is fixedly connected to the bottom of the second trapezoidal block (612). A discharge pipe (66) is fixedly connected to the outer surface of the cylinder (62). A regulating component (68) for adjusting the number of the second trapezoidal blocks (612) is arranged on the lower surface of the circular plate (4).

2. The concentration-adjustable anesthesia device according to claim 1, characterized in that: One side of the discharge pipe (66) extends into the mixing chamber (5). The top of the L-shaped rod (613) is fixedly connected to the bottom of the active block (63). The outlet of the volume chamber (65) is L-shaped. The top and bottom of the first spring (67) are respectively fixedly connected to the active block (63) and the fixing plate (610). An annular rack (9) is fixedly connected to the inner surface of the circular plate (4). A driving motor (11) is fixedly connected to the upper surface of the base (1). The output end of the driving motor (11) is fixedly connected to a fourth gear (8). A solenoid valve (10) is arranged at the bottom of the mixing chamber (5).

3. The concentration-adjustable anesthesia device according to claim 2, characterized in that: There are two groups of the second trapezoidal blocks (612). Each group of the second trapezoidal blocks (612) has six. Each of the second trapezoidal blocks (612) is evenly arranged. The two groups of the second trapezoidal blocks (612) are located on different circumferences. The trajectories of the rotations of the two balls (611) are located on different circumferences. The movement trajectories of the two balls (611) respectively correspond to the two groups of the second trapezoidal blocks (612).

4. The concentration-adjustable anesthesia device according to claim 3, characterized in that: The regulating component (68) includes two U-shaped plates (681) fixed to the lower surface of the circular plate (4). Two slots (682) are provided inside the U-shaped plates (681). A pull rod (683) is slidably connected inside the U-shaped plates (681). Rectangular rods (684) are symmetrically fixedly connected to the outer surface of the pull rod (683).

5. The concentration-adjustable anesthesia device according to claim 4, characterized in that: The top of the pull rod (683) is fixedly connected to the bottom of the second trapezoidal block (612), the second trapezoidal block (612) is slidably connected to the circular plate (4), the rectangular rod (684) and the slot (682) are slidably adapted to each other, and the bottom of the pull rod (683) is fixedly connected to a round handle.

6. The concentration-adjustable anesthesia device according to claim 5, characterized in that: The outer surface of the discharge pipe (66) is provided with a discharge assembly (69) for discharging residual liquid inside the discharge pipe (66). The discharge assembly (69) includes a C-shaped tube (696) fixed on the outer surface of the discharge pipe (66) and two first trapezoidal blocks (698) fixed on the inner edge of the top of the circular plate (4). The bottom of the C-shaped tube (696) is fixedly connected to a second one-way valve (697), the bottom of the second one-way valve (697) is fixedly connected to a piston cylinder (691), the interior of the piston cylinder (691) is slidably connected to a piston (693), the top of the piston (693) is fixedly connected to a second spring (694), the top of the piston cylinder (691) is fixedly connected to a first one-way valve (695), and the bottom of the piston (693) is fixedly connected to a push rod (692).

7. The concentration-adjustable anesthesia device according to claim 6, characterized in that: The C-shaped tube (696) is located above the discharge tube (66), the top of the second spring (694) is fixedly connected to the inner top of the piston cylinder (691), the flow direction of the second one-way valve (697) is from the piston cylinder (691) to the inside of the C-shaped tube (696), and the flow direction of the first one-way valve (695) is from the outside to the inside of the piston cylinder (691).

8. The concentration-adjustable anesthesia device according to claim 1, characterized in that: A mixing assembly (7) is provided at the bottom of the mixing bin (5), and the mixing assembly (7) comprises a rotating shaft (71) rotating on the top of the mixing bin (5), a transmission rod (75) rotating on the outer surface of the mixing bin (5), and an exhaust assembly (78) provided at the top edge of the mixing bin (5). The top and bottom of the transmission rod (75) are fixedly connected to a second gear (74) and a third gear (76), respectively. The top of the rotating shaft (71) is fixedly connected to a first gear (72). The outer surfaces of the first gear (72) and the second gear (74) are sleeved with a synchronous belt (73). The outer surface of the rotating shaft (71) is provided with a plurality of stirring blades (77).

9. The concentration-adjustable anesthesia device according to claim 8, characterized in that: The third gear (76) is meshed with the annular rack (9), the bottom of the rotating shaft (71) extends to the interior of the mixing chamber (5), and the stirring blades (77) are provided in three groups, each group of stirring blades (77) including three.

10. The concentration-adjustable anesthesia device according to claim 9, characterized in that: The exhaust assembly (78) comprises an externally threaded exhaust cylinder (781) fixed at the top edge of the mixing chamber (5); the outer surface of the externally threaded exhaust cylinder (781) is threadedly connected to a threaded cover (782); and the inner surface of the externally threaded exhaust cylinder (781) is provided with a breathable and waterproof membrane (783).

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