Portable anesthetic gas mixing device

Abstract

The invention discloses a portable anesthetic gas mixing device, and belongs to the technical field of medical instruments. The anesthetic gas mixing device comprises a box body, an oxygen bottle, an anesthetic gas bottle and a converging pipe, wherein the oxygen bottle and the anesthetic gas bottle are arranged in the box body; the converging pipe is communicated with the oxygen bottle and the anesthetic gas bottle and penetrates through the box body; the gas conveying pipe is connected with the oxygen bottle and the anesthetic gas bottle far away from the afflux pipe; and the oxygen mask is fixedly connected with one end, far away from the afflux pipe, of the gas conveying pipe. According to the portable anesthetic gas mixing device, the flow of oxygen and anesthetic gas can be controlled by arranging the regulator, so that the oxygen and the anesthetic gas can be preliminarily mixed in the balloon and then further mixed through the mixer, and the gas mixing efficiency and effect are improved; meanwhile, the piston assembly can be synchronously used for inflating the air bag, so that the oxygen mask is tightly attached to the face of the patient, discharge and waste of anesthetic gas are reduced, and the anesthetic effect is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a portable anesthetic gas mixing device. Background Art

[0002] In the medical field, anesthesia technology is not only the key to the success of surgery, but also an important cornerstone to ensure the safety and comfort of patients during surgery. The anesthesia process requires extremely high-precision control of the concentration and flow of anesthetic gases, because any slight deviation may have a significant impact on the patient's vital signs and even endanger his life.

[0003] Traditional anesthetic gas mixing methods often rely on the pipeline system of the anesthesia machine for mixing. Due to the limitations of the pipeline system and the unevenness of gas flow, the diffusion of gas molecules may be hindered, which leads to reduced contact opportunities between gas molecules, poor mixing effect, and reduced anesthetic effect. In addition, when the mixed anesthetic gas is delivered to the oxygen mask and inhaled by the patient, the mixed anesthetic gas is easily discharged from the edge of the mask due to the insufficient fit between the oxygen mask and the patient's face, resulting in the actual inhaled anesthetic gas concentration of the patient being lower than the preset value, which further weakens the anesthetic effect.

[0004] Therefore, the present application provides a portable anesthetic gas mixing device to solve the above problems. Summary of the invention

[0005] The present application provides a portable anesthetic gas mixing device, which aims to solve the problems that the existing anesthetic gas mixing method proposed in the background technology is limited by the pipeline system and the mask is not fit enough, resulting in poor anesthetic gas mixing effect and the patient's actual inhalation concentration is lower than the preset value, resulting in weakened anesthetic effect.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a portable anesthetic gas mixing device, comprising a box, an oxygen cylinder and an anesthetic gas cylinder placed in the box, an inlet pipe connected to the oxygen cylinder and the anesthetic gas cylinder and passing through the box, an air supply pipe connected to the inlet pipe away from the oxygen cylinder and the anesthetic gas cylinder, and an oxygen mask fixedly connected to one end of the air supply pipe away from the inlet pipe;

[0007] The anesthetic gas mixing device also includes a balloon disposed between the inlet pipe and the gas delivery pipe and in communication with the inlet pipe and the gas delivery pipe, a regulator disposed on the gas delivery pipe and used to adjust the diameter of the gas delivery pipe so that oxygen and anesthetic gas can be stored in the balloon, and a mixer disposed between the balloon and the gas delivery pipe and in communication with the balloon and the gas delivery pipe for gas mixing;

[0008] An air bag for contacting the patient's face is fixedly provided on the edge of the oxygen mask, and a piston assembly connected to the air bag for inflating or deflating the air bag is provided on the regulator; by providing the regulator, medical personnel are allowed to adjust the diameter of the air pipe as needed, thereby controlling the flow of oxygen and anesthetic gas, so that the oxygen and anesthetic gas can be preliminarily mixed in the balloon and then further mixed through the mixer. This design improves the efficiency and effect of gas mixing and ensures that the patient can receive a uniform concentration of anesthetic gas. The design of the air bag and the piston assembly on the edge of the oxygen mask is that when the regulator is adjusted to increase the inner diameter of the air pipe, the piston assembly can synchronously inflate the air bag and fit tightly to the patient's face, thereby reducing the discharge of anesthetic gas and ensuring the effect of anesthesia, while also reducing waste and improving utilization. Conversely, the gas in the air bag can be extracted to release the tight fit to the patient's face. At the same time, the entire device is compactly designed and easy to carry and move.

[0009] Preferably, in order to ensure the mixing effect when the balloon is filled with air, a plurality of elastic spheres are arranged in the balloon; the design of the elastic spheres enables these elastic spheres to move and collide with the flow of the gas when oxygen and anesthetic gas enter the balloon through the inlet tube, thereby increasing the contact and mixing opportunities between the oxygen and anesthetic gas molecules, and achieving preliminary and sufficient mixing of the oxygen and anesthetic gas.

[0010] Preferably, in order to prevent the elastic sphere from entering the inlet pipe and the gas pipe, the diameter of the elastic sphere is larger than the inner diameter of the inlet pipe and the gas pipe; such a design can prevent the elastic sphere from accidentally entering the pipeline, which helps to keep the pipeline unobstructed and prevent gas flow problems caused by blockage by the elastic sphere.

[0011] Preferably, in order to further mix the gas in the balloon, the mixer includes a cylinder body arranged between the balloon and the gas pipe and connected to the balloon and the gas pipe, a rotating shaft rotatably connected to the cylinder body, and fan blades fixedly arranged on the rotating shaft for being impacted by the gas; with this design, when the gas flows from the balloon into the cylinder body, it will impact the fan blades, and the rotation of the fan blades will further stir and mix the gas, thereby improving the mixing effect.

[0012] Preferably, in order to ensure the mixing effect when the gas impacts the fan blades, the fan blades are spiral; the spiral fan blades will produce a stronger vortex effect when rotating, thereby increasing the collision and mixing opportunities between gas molecules, and can more effectively utilize the kinetic energy of the gas for mixing.

[0013] Preferably, in order to facilitate the adjustment of the diameter of the gas pipe, the regulator includes a fixed frame fixedly sleeved on the gas pipe near one end of the cylinder, an opening provided on the fixed frame, a roller rotatably connected to the fixed frame corresponding to the opening for squeezing the gas pipe, a connecting shaft transversely passing through the roller and fixedly connected to the roller, and inclined grooves provided on the fixed frame at positions corresponding to both ends of the connecting shaft, and the connecting shaft is slidably connected to the inclined grooves; such a design makes it possible to conveniently adjust the diameter of the gas pipe by manually rolling the roller without the need for any other complicated operations.

[0014] Preferably, in order to ensure that the roller squeezes the air pipe and changes the diameter of the air pipe, the cylinder is located at the lower end of the inclined groove; this design allows when the roller rolls toward the side close to the cylinder, the roller can firmly squeeze the air pipe through the guiding effect of the inclined groove, thereby reducing the diameter of the air pipe, and vice versa.

[0015] Preferably, in order to facilitate the use of the roller, anti-skid teeth are fixedly provided on the surface of the roller; the design of the anti-skid teeth improves the grip of the roller, making the operation more convenient and accurate.

[0016] Preferably, in order to facilitate the inflation and deflating of the airbag, the piston assembly includes a connecting block rotatably connected to both ends of the connecting shaft and located on the outside of the fixed frame, an air cylinder fixedly arranged on the outside of the fixed frame at a position corresponding to the top of the connecting block, a piston slidably connected to the air cylinder, a push rod passing through the bottom end of the air cylinder and having its two ends fixedly connected to the piston and the connecting block respectively, and a hose fixedly arranged on an end of the air cylinder away from the push rod and having its two ends connected to the air cylinder and the airbag respectively, and the push rod is slidably connected to the air cylinder; with this design, when the roller is rolled, the push rod can be synchronously pushed to move to achieve inflation and deflating of the airbag.

[0017] The portable anesthetic gas mixing device allows medical personnel to adjust the diameter of the gas delivery tube as needed by setting a regulator, thereby controlling the flow of oxygen and anesthetic gas, so that oxygen and anesthetic gas can be initially mixed in the balloon and then further mixed by the mixer. This design improves the efficiency and effect of gas mixing and ensures that the patient can receive a uniform concentration of anesthetic gas.

[0018] The portable anesthetic gas mixing device is designed by combining the air bag and the piston assembly on the edge of the oxygen mask. When the regulator is adjusted to increase the inner diameter of the gas delivery tube, the piston assembly can inflate the air bag synchronously and fit closely to the patient's face, thereby reducing the discharge and waste of anesthetic gas and ensuring the effect and utilization rate of anesthesia.

[0019] The portable anesthesia gas mixing device has a compact design and is easy to carry and move;

[0020] The portable anesthetic gas mixing device arranges elastic spheres in the balloon so that when oxygen and anesthetic gas enter the balloon through the inlet tube, the elastic spheres move and collide with the flow of the gas, thereby increasing the contact and mixing opportunities between oxygen and anesthetic gas molecules and achieving initial and sufficient mixing of oxygen and anesthetic gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a portable anesthetic gas mixing device in Example 1 Figure 1 ;

[0022] Figure 2 A schematic diagram of the structure of a portable anesthetic gas mixing device in Example 1 Figure 2 ;

[0023] Figure 3 Schematic diagram of the structure of the regulator, mixer and piston assembly in Example 1;

[0024] Figure 4 is a cross-sectional view of the piston assembly in Example 1;

[0025] Figure 5 is a cross-sectional view of the mixer in Example 1;

[0026] Figure 6 This is a cross-sectional view of the balloon in Example 2.

[0027] In the figure:

[0028] 1. Box; 11. Oxygen cylinder; 12. Anesthetic gas cylinder;

[0029] 2. Inlet pipe;

[0030] 3. Balloon; 31. Elastic sphere;

[0031] 4. Gas pipeline;

[0032] 5. Oxygen mask; 51. Air bag;

[0033] 6. Regulator; 61. Fixed frame; 62. Opening; 63. Inclined slot; 64. Connecting shaft; 65. Roller;

[0034] 7. mixer; 71. barrel; 72. rotating shaft; 73. fan blade;

[0035] 8. Piston assembly; 81. Connecting block; 82. Air cylinder; 83. Piston; 84. Push rod; 85. Hose. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] Example 1

[0038] This embodiment provides a portable anesthetic gas mixing device, such as Figure 1-Figure 5 As shown, the anesthetic gas mixing device comprises a box body 1, an oxygen cylinder 11 and an anesthetic gas cylinder 12 placed in the box body 1, an inlet pipe 2 connected with the oxygen cylinder 11 and the anesthetic gas cylinder 12 and running through the box body 1, an air supply pipe 4 connected with the inlet pipe 2 away from the oxygen cylinder 11 and the anesthetic gas cylinder 12, and an oxygen mask 5 fixedly connected with one end of the air supply pipe 4 away from the inlet pipe 2; the anesthetic gas mixing device also comprises a balloon 3 arranged between the inlet pipe 2 and the air supply pipe 4 and connected with the inlet pipe 2 and the air supply pipe 4, a regulator 6 arranged on the air supply pipe 4 for adjusting the diameter of the air supply pipe 4 so that oxygen and anesthetic gas are stored in the balloon 3, and a mixer 7 arranged between the balloon 3 and the air supply pipe 4 and connected with the balloon 3 and the air supply pipe 4 for gas mixing; an air bag 51 for contacting the patient's face is fixedly arranged on the edge of the oxygen mask 5, and a piston assembly 8 connected with the air bag 51 for inflating or exhausting the air bag 51 is arranged on the regulator 6.

[0039] When in use, first ensure that the valves of the oxygen cylinder 11 and the anesthetic gas cylinder 12 are open, then use the regulator 6 to adjust the diameter of the gas pipe 4 to minimize the diameter of the gas pipe 4. When the diameter becomes smaller, the gas flow rate slows down, and the oxygen and anesthetic gas will be stored in the balloon 3 for preliminary mixing. When the balloon 3 expands to a certain extent, the gas storage is completed. At this time, adjust the regulator 6 again to increase the diameter of the gas pipe 4. Then, the preliminary mixed gas in the balloon 3 will impact the mixer 7 for further mixing. The gas after inhalation will enter the oxygen mask 5 through the balloon 3, and then be inhaled by the patient through the oxygen mask 5 for anesthesia. However, in the process of using the regulator 6 to adjust the diameter of the gas pipe 4, when the diameter of the gas pipe 4 becomes larger, the piston assembly 8 will synchronously inflate the airbag 51 on the oxygen mask 5 to make it fit closely with the patient's face and reduce gas leakage. When the diameter of the gas pipe 4 becomes smaller, the piston assembly 8 can draw back the gas in the airbag 51 to reduce the pressure in the airbag 51 and separate it from the patient's face.

[0040] Specifically, the mixer 7 includes a cylinder 71 disposed between the balloon 3 and the gas delivery pipe 4 and connected to the balloon 3 and the gas delivery pipe 4, a rotating shaft 72 rotatably connected in the cylinder 71, and a fan blade 73 fixedly disposed on the rotating shaft 72 for being impacted by the gas;

[0041] When the preliminary mixed gas in the balloon 3 enters the mixer 7 through the cylinder 71, the gas will first impact the fan blades 73. After being impacted by the gas, the fan blades 73 will start to rotate, and at the same time drive the rotating shaft 72 to rotate together. At this time, the rotation of the fan blades 73 will generate strong turbulence and eddies, which will divide the gas into smaller micro-clusters and cause them to collide and mix with each other. Through the continuous rotation of the fan blades 73 and the continuous flow of gas, the oxygen and anesthetic gas in the preliminary mixed gas will gradually reach a state of uniform distribution. After that, the fully mixed gas will then enter the gas supply pipe 4 through the outlet of the cylinder 71. In the gas supply pipe 4, the mixed gas will continue to flow until it is sent to the oxygen mask 5 for the patient to inhale.

[0042] In addition, in order to ensure the mixing effect when the gas impacts the fan blades 73, the fan blades 73 are spirally shaped; the spiral fan blades 73 will produce a stronger vortex effect when rotating, thereby increasing the collision and mixing opportunities between gas molecules, and can more effectively utilize the kinetic energy of the gas for mixing.

[0043] Furthermore, the regulator 6 includes a fixed frame 61 fixedly sleeved on one end of the gas pipe 4 close to the cylinder 71, an opening 62 opened on the fixed frame 61, a roller 65 rotatably connected to the corresponding opening 62 of the fixed frame 61 for squeezing the gas pipe 4, a connecting shaft 64 transversely penetrating the roller 65 and fixedly connected to the roller 65, and an inclined groove 63 opened on the fixed frame 61 at positions corresponding to both ends of the connecting shaft 64, the connecting shaft 64 is slidably connected in the inclined groove 63, and the cylinder 71 is located at the lower end of the inclined groove 63;

[0044] When it is necessary to reduce the diameter of the gas delivery tube 4 so that oxygen and anesthetic gas are stored in the balloon 3, the roller 65 is turned to roll toward the side close to the balloon 3. At this time, the roller 65 will synchronously drive the connecting shaft 64 to slide down in the inclined groove 63. Since the lower end of the inclined groove 63 is close to the cylinder 71, when the connecting shaft 64 slides down in the inclined groove 63, the roller 65 will synchronously approach the gas delivery tube 4 and squeeze the gas delivery tube 4. The greater the squeezing degree, the smaller the cross-sectional area of ​​the gas delivery tube 4, and the greater the resistance when the gas passes through. When the flow rate decreases or the pressure drops, oxygen and anesthetic gas will enter the balloon 3 for storage and preliminary mixing. When it is necessary to increase the diameter of the gas pipe 4, the roller 65 is turned in the opposite direction. At this time, with the guidance of the inclined groove 63, the roller 65 will move away from the gas pipe 4 and release the decompression of the gas pipe 4. When the gas pipe 4 is not squeezed by the roller 65, the resistance to the passage of gas will become smaller, so that the end of the cylinder 71 close to the gas pipe 4 is opened, so that the preliminary mixed gas in the balloon 3 will impact the fan blades 73 and further mix.

[0045] In order to facilitate the use of the roller 65, anti-skid teeth are fixedly provided on the surface of the roller 65; the design of the anti-skid teeth improves the grip of the roller 65, making the operation more convenient and accurate.

[0046] Furthermore, the piston assembly 8 includes a connecting block 81 rotatably connected to both ends of the connecting shaft 64 and located outside the fixed frame 61, a gas cylinder 82 fixedly arranged on the outside of the fixed frame 61 at a position above the corresponding connecting block 81, a piston 83 slidably connected in the gas cylinder 82, a push rod 84 penetrating the bottom end of the gas cylinder 82 and having both ends fixedly connected to the piston 83 and the connecting block 81, and a hose 85 fixedly arranged at one end of the gas cylinder 82 away from the push rod 84 and having both ends connected to the gas cylinder 82 and the airbag 51, and the push rod 84 is slidably connected to the gas cylinder 82;

[0047] When the roller 65 is turned, the connecting shaft 64 slides downward in the inclined groove 63 toward the side close to the balloon 3. Due to the connection of the connecting block 81, the connecting shaft 64 will synchronously drive the connecting block 81 to slide down, and the connecting block 81 will synchronously drive the piston 83 connected to the push rod 84 to slide down, thereby sucking the gas in the airbag 51 and storing it in the air cylinder 82. When the roller 65 is turned in the opposite direction, the connecting shaft 64 will slide upward in the inclined groove 63 toward the side away from the balloon 3. At this time, the connecting shaft 64 will drive the connecting block 81 to slide up synchronously, and the connecting block 81 will synchronously drive the piston 83 connected to the push rod 84 to slide upward in the air cylinder 82, thereby compressing the gas in the air cylinder 82, so that the compressed gas is input into the airbag 51 through the hose 85.

[0048] Example 2

[0049] Different from Example 1, Figure 6As shown, in order to ensure the mixing effect when the balloon 3 is filled with gas, a plurality of elastic spheres 31 are arranged in the balloon 3; the design of the elastic spheres 31 enables, when oxygen and anesthetic gas enter the balloon 3 through the inlet pipe 2, these elastic spheres 31 will move and collide with the flow of the gas, thereby increasing the contact and mixing opportunities between the oxygen and anesthetic gas molecules, and achieving preliminary and sufficient mixing of the oxygen and anesthetic gas.

[0050] It is understandable that the diameter of the elastic sphere 31 is larger than the inner diameter of the inlet pipe 2 and the gas pipe 4; this design can prevent the elastic sphere 31 from accidentally entering the pipeline, which helps to keep the pipeline unobstructed and prevent gas flow problems caused by blockage of the elastic sphere 31.

[0051] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solution and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A portable anesthetic gas mixing device, comprising a box (1), an oxygen cylinder (11) and an anesthetic gas cylinder (12) placed in the box (1), an inlet pipe (2) connected to the oxygen cylinder (11) and the anesthetic gas cylinder (12) and passing through the box (1), an air supply pipe (4) connected to the inlet pipe (2) away from the oxygen cylinder (11) and the anesthetic gas cylinder (12), and an oxygen mask (5) fixedly connected to one end of the air supply pipe (4) away from the inlet pipe (2); Features: The anesthetic gas mixing device further comprises a balloon (3) arranged between the inlet pipe (2) and the gas supply pipe (4) and in communication with the inlet pipe (2) and the gas supply pipe (4), a regulator (6) arranged on the gas supply pipe (4) and used for adjusting the diameter of the gas supply pipe (4) so ​​that oxygen and anesthetic gas are stored in the balloon (3), and a mixer (7) arranged between the balloon (3) and the gas supply pipe (4) and in communication with the balloon (3) and the gas supply pipe (4) for gas mixing; An air bag (51) for contacting the patient's face is fixedly arranged on the edge of the oxygen mask (5), and a piston assembly (8) connected to the air bag (51) for inflating or deflating the air bag (51) is arranged on the regulator (6).

2. The portable anesthetic gas mixing device according to claim 1, characterized in that: A plurality of elastic spheres (31) are arranged in the balloon (3).

3. The portable anesthetic gas mixing device according to claim 2, characterized in that: The diameter of the elastic sphere (31) is greater than the inner diameters of the inlet pipe (2) and the gas delivery pipe (4).

4. The portable anesthetic gas mixing device according to claim 2, characterized in that: The mixer (7) comprises a cylinder (71) disposed between the balloon (3) and the gas pipe (4) and connected to the balloon (3) and the gas pipe (4), a rotating shaft (72) rotatably connected to the cylinder (71), and a fan blade (73) fixedly disposed on the rotating shaft (72) for being impacted by gas.

5. The portable anesthetic gas mixing device according to claim 4, characterized in that: The fan blade (73) is spiral-shaped.

6. The portable anesthetic gas mixing device according to claim 4, characterized in that: The regulator (6) comprises a fixed frame (61) fixedly sleeved on one end of the gas pipe (4) close to the cylinder (71), an opening (62) provided on the fixed frame (61), a roller (65) rotatably connected to the fixed frame (61) at a position corresponding to the opening (62) for squeezing the gas pipe (4), a connecting shaft (64) transversely penetrating the roller (65) and fixedly connected to the roller (65), and an inclined groove (63) provided on the fixed frame (61) at positions corresponding to both ends of the connecting shaft (64), wherein the connecting shaft (64) is slidably connected in the inclined groove (63).

7. The portable anesthetic gas mixing device according to claim 6, characterized in that: The cylinder (71) is located at the lower end of the inclined groove (63).

8. The portable anesthetic gas mixing device according to claim 6, characterized in that: Anti-slip teeth are fixedly arranged on the surface of the roller (65).

9. The portable anesthetic gas mixing device according to claim 6, characterized in that: The piston assembly (8) comprises a connecting block (81) rotatably connected to both ends of the connecting shaft (64) and located outside the fixed frame (61), an air cylinder (82) fixedly arranged at a position above the connecting block (81) on the outside of the fixed frame (61), a piston (83) slidably connected to the air cylinder (82), a push rod (84) penetrating the bottom end of the air cylinder (82) and having its two ends fixedly connected to the piston (83) and the connecting block (81), and a hose (85) fixedly arranged at one end of the air cylinder (82) away from the push rod (84) and having its two ends connected to the air cylinder (82) and the air bag (51), respectively; the push rod (84) is slidably connected to the air cylinder (82).

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