Inhalation anaesthesia apparatus

Abstract

The utility model relates to medical auxiliary instrument technical field, and its specific disclosure inhale formula anesthesia device, including face guard, adjusting mechanism, oxygen supply pipeline and anesthetic gas supply pipeline, adjusting mechanism includes adjusting joint and the adjusting knob of installing on adjusting joint, the inside hollow of adjusting joint forms a mixing chamber, and the front end of adjusting joint is provided with the oxygen input and anesthetic gas input of intercommunication mixing chamber, and oxygen supply pipeline and anesthetic gas supply pipeline are connected with oxygen input and anesthetic gas input respectively, and the rear end of adjusting joint is provided with the mixed gas output of intercommunication mixing chamber, and face guard communicates with mixed gas output, and the adjusting knob rotatable is installed in mixing chamber, and is provided with the adjusting hole for adjusting the opening size of oxygen input and anesthetic gas input.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and in particular to an inhalation anesthesia device. Background Technology

[0002] Inhalation anesthesia utilizes volatile liquid or gaseous anesthetic drugs administered through the respiratory tract to achieve anesthesia. Inhalation anesthesia devices are widely used in modern clinical surgery due to their convenience, speed, and simplicity. For example, utility model patent application CN219022788U discloses an inhalation anesthesia device that, through the interaction of a rotating block, adjusting shell, connecting gears, connecting rod, and locking block, allows the patient to adjust the intake of oxygen and anesthetic gas according to the connection between the adjusting shell and the two sets of connecting gears. This adjustment results in faster drug delivery to the patient, reducing delays and minimizing impact on the anesthesia's effectiveness. However, the aforementioned anesthesia device employs a complex adjustment structure, leading to higher production costs. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems mentioned above, and provides an inhalation anesthesia device that can adjust the input of oxygen and anesthetic gas as needed, with a simple adjustment structure and low production cost.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an inhalation anesthesia device, including a mask, an adjustment mechanism, an oxygen supply pipeline, and an anesthetic gas supply pipeline. The adjustment mechanism includes an adjustment connector and an adjustment knob installed on the adjustment connector. The interior of the adjustment connector is hollow to form a mixing chamber, and the front end of the adjustment connector is provided with an oxygen inlet and an anesthetic gas inlet communicating with the mixing chamber. The oxygen supply pipeline and the anesthetic gas supply pipeline are respectively connected to the oxygen inlet and the anesthetic gas inlet. The rear end of the adjustment connector is provided with a mixed gas outlet communicating with the mixing chamber. The mask is connected to the mixed gas outlet. The adjustment knob is rotatably installed in the mixing chamber, and the adjustment knob is provided with an arc-shaped adjustment hole. During the rotation of the adjustment knob, the adjustment hole can adjust the opening size of the oxygen inlet and the anesthetic gas inlet.

[0005] Preferably, the adjustment knob includes an adjustment seat in the shape of a frustum, one end of which abuts against the wall of the mixing chamber, and the other end of which extends to the edge of a drive unit. The center of the adjustment seat is rotatably engaged with a rotating shaft provided on the inner wall of the mixing chamber. The adjustment joint is provided with a mounting hole, and the drive unit protrudes out of the adjustment joint through the mounting hole.

[0006] Preferably, the upper and lower surfaces of the adjusting joint are symmetrically provided with mounting holes, and the two symmetrical edges of the adjusting knob protrude out of the adjusting joint through the two mounting holes respectively.

[0007] Preferably, a sealing ring is provided around the edge of the mounting hole, and the sealing ring is in a sealing fit with the adjustment knob.

[0008] Preferably, the inner wall of the mixing chamber is provided with an arc-shaped limiting groove, and the end of the adjusting seat is provided with a limiting protrusion that slides with the limiting groove. The two ends of the limiting groove abut against the limiting protrusion to limit the rotation of the adjusting knob.

[0009] Preferably, the mixing chamber is provided with several baffles.

[0010] Preferably, the mixed gas outlet is provided with a connector, and the mask is threadedly connected to the connector.

[0011] Preferably, the oxygen inlet and the anesthetic gas inlet are each connected to a connector.

[0012] The beneficial effects are as follows: Compared with the prior art, the inhalation anesthesia device of this utility model, by setting an adjustment connector, allows anesthetic gas and oxygen to be introduced into the mixing chamber inside the adjustment connector through the oxygen inlet and the anesthetic gas inlet, mixed, and then output to the mask through the mixed gas outlet to anesthetize the patient. At the same time, during the anesthesia process, the opening size of the oxygen inlet and the anesthetic gas inlet can be adjusted by rotating the adjustment knob, thereby adjusting the amount of oxygen and anesthetic gas input. The adjustment structure is simple, the operation is convenient, and the production cost of the adjustment connector is reduced. Attached Figure Description

[0013] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the inhalation anesthesia device of this application; Figure 2 A schematic diagram of the internal structure of the adjustment connector; Figure 3 This is a schematic diagram of the installation structure of the sealing ring; Figure 4 A schematic diagram showing the structure when the adjustment knob is turned to the fully open position for both the oxygen inlet and the anesthetic gas inlet; Figure 5 A schematic diagram showing the structure of adjusting the knob when it is turned counterclockwise to completely close the oxygen inlet and anesthetic gas inlet; Figure 6 A schematic diagram showing the structure of the adjustment knob turned clockwise until the oxygen inlet and anesthetic gas inlet are completely closed. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a central component. When a component is described as "connected to" another component, it can be directly connected to the other component or may have a central component. When a component is described as "set on" another component, it can be directly set on the other component or may have a central component. When a component is described as "set in the middle," it is not simply set in the exact center, as long as it is not set within the area defined by both ends being in the middle. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] like Figures 1 to 6 As shown, this application discloses an inhalation anesthesia device, including a mask 1, an adjustment mechanism 2, an oxygen supply line 3, and an anesthetic gas supply line 4. The adjustment mechanism 2 includes an adjustment connector 5 and an adjustment knob 6 installed on the adjustment connector 5. The interior of the adjustment connector 5 is hollow to form a mixing chamber 7, and the front end of the adjustment connector 5 is provided with an oxygen inlet 8 and an anesthetic gas inlet 9 that communicate with the mixing chamber 7. The oxygen supply line 3 and the anesthetic gas supply line 4 are respectively connected to the oxygen inlet 8 and the anesthetic gas inlet 9. The rear end of the adjustment connector 5 is provided with a mixed gas outlet 10 that communicates with the mixing chamber 7. The mask 1 is connected to the mixed gas outlet 10. The adjustment knob 6 is rotatably installed in the mixing chamber 7, and the adjustment knob 6 is provided with an arc-shaped adjustment hole 11. During the rotation of the adjustment knob 6, the adjustment hole 11 can adjust the opening size of the oxygen inlet 8 and the anesthetic gas inlet 9, thereby adjusting the amount of anesthetic gas and oxygen input into the mixing chamber.

[0018] This invention relates to an inhalation anesthesia device. By incorporating an adjusting connector 5, oxygen from the oxygen supply line 3 and anesthetic gas from the anesthetic gas supply line 4 are respectively introduced into the mixing chamber 7 inside the adjusting connector 5 through the oxygen inlet 8 and the anesthetic gas inlet 9 for mixing. The mixed gas is then output to the mask 1 through the mixed gas outlet 10 to anesthetize the patient. During anesthesia, medical personnel can adjust the position of the adjusting hole 11 by rotating the adjusting knob 6, thereby adjusting the diameter of the connection between the oxygen inlet 8 and the adjusting hole 11, and between the anesthetic gas inlet 9 and the adjusting hole 11. This allows for adjustment of the amount of oxygen and anesthetic gas input within the mixing chamber. The adjusting structure is simple, easy to operate, and reduces the production cost of the adjusting connector 5.

[0019] like Figure 2 As shown, in one specific embodiment of this application, the adjusting knob 6 includes an adjusting seat 12 arranged in a frustum shape. One end of the adjusting seat 12 abuts against the wall of the mixing chamber 7, and the edge of the other end extends to a driving part 13. A mounting plane is provided on the inner wall of the mixing chamber 7 located at the front end of the adjusting connector 5. A rotating shaft 14 is provided on the mounting plane, and both the oxygen inlet 8 and the anesthetic gas inlet 9 are provided on the mounting plane. The center of the adjusting seat 12 is rotatably engaged with the rotating shaft 14, and the end of the rotating shaft 14 is provided with a limiting screw for limiting the axial movement of the adjusting seat 12. The adjusting hole 11 penetrates the adjusting seat 12, and the end face of the adjusting seat 12 is parallel and in contact with the mounting plane, which can improve the control of the adjusting seat 12 over the oxygen inlet 8 and the anesthetic gas inlet 9. The sealing performance of 9 is such that the drive part 13 protrudes from the outside of the adjustment joint 5 through the mounting hole 15, so that the operator can drive the adjustment knob 6 to rotate through the drive part 13. Preferably, the upper and lower surfaces of the adjustment joint 5 are symmetrically provided with mounting holes 15, and the two symmetrical edges of the adjustment knob 6 protrude from the outside of the adjustment joint 5 through the two mounting holes 15 to form the drive part 13. Medical staff can pinch the two drive parts 13 with their index finger and thumb to facilitate the operator to rotate the adjustment knob 6. In this embodiment, the adjustment joint 5 can be square, and the top of the adjustment seat 12 can be provided with a detachable top plate through a snap-fit ​​structure or a screw mounting structure. The mounting hole 15 is provided on the top plate. By providing a detachable top plate, it is convenient to install the adjustment knob 6.

[0020] Furthermore, such as Figure 3As shown, in order to improve the sealing between the adjusting knob 6 and the mounting hole 15 and prevent the mixed gas in the mixing chamber from flowing out from the gap between the adjusting knob 6 and the mounting hole 15, a sealing ring 17 can be provided around the edge of the mounting hole 15. The sealing ring 17 and the adjusting knob 6 are sealed together to seal the gap between the mounting hole 15 and the adjusting knob 6. At the same time, the abutting fit between the adjusting knob 6 and the sealing ring 17 can apply a certain amount of damping to the adjusting knob 6, thereby facilitating the adjustment and positioning of the adjusting knob 6. Specifically, a mounting groove can be provided around the edge of the mounting hole 15, and the sealing ring 17 is set in the mounting groove by embedding.

[0021] The inner wall of the mixing chamber 7 is provided with an arc-shaped limiting groove 18. The end of the adjusting seat 12 is provided with a limiting protrusion 19 that slides within the limiting groove 18. Both ends of the limiting groove 18 abut against the limiting protrusion 19 to limit the rotation of the adjusting knob 6. Specifically, the oxygen inlet 8 and the anesthetic gas inlet 9 are both located on the rotating arc of the adjusting hole 11. Figure 4 As shown, when the adjusting knob 6 is rotated to the point where the adjusting hole 11 corresponds to both the oxygen inlet 8 and the anesthetic gas inlet 9, both the oxygen inlet 8 and the anesthetic gas inlet 9 are simultaneously at their maximum opening. Figure 5 As shown, when the adjustment knob 6 is turned counterclockwise at its maximum opening, the opening of the oxygen inlet 8 gradually decreases until it is completely closed, while the opening of the anesthetic gas inlet 9 remains unchanged. Continuing to turn the adjustment knob 6 counterclockwise keeps the oxygen inlet 8 closed, while the opening of the anesthetic gas inlet 9 gradually decreases until it is completely closed. At this point, one end of the limiting protrusion 19 abuts against the limiting groove 18 to limit the counterclockwise rotation of the adjustment knob 6. Figure 6 As shown, when the adjustment knob 6 is at its maximum opening, if it is turned clockwise, the opening of the anesthetic gas inlet 9 gradually decreases until it is completely closed, while the opening of the oxygen inlet 8 remains unchanged. Continuing to turn the adjustment knob 6 clockwise keeps the anesthetic gas inlet 9 closed, while the opening of the oxygen inlet 8 gradually decreases until it is completely closed. At this point, the limiting protrusion 19 abuts against the other end of the limiting groove 18 to limit the clockwise rotation of the adjustment knob 6. Preferably, to facilitate the operator's understanding of the opening status of the oxygen inlet 8 and the anesthetic gas inlet 9 during adjustment, a marking can be provided on the adjustment knob 6.

[0022] like Figure 2As shown, in a more preferred embodiment of this application, a plurality of baffles 20 may be provided in the mixing chamber 7. Specifically, multiple baffles 20 are provided and are arranged alternately on the inner walls of opposite sides of the mixing chamber 7 along the gas conveying direction. The baffles 20 are inclined at a certain angle toward the gas conveying direction. By providing baffles 20, the interior of the mixing chamber 7 can be constructed into a circulating and tortuous gas conveying path. During the conveying process, the oxygen and anesthetic gas input into the mixing chamber 7 are more conducive to mixing after being blocked by the baffles 20. Furthermore, the tortuous gas conveying path can reduce the gas conveying speed, thereby making the oxygen and anesthetic gas mix more thoroughly.

[0023] In this application, the mixed gas outlet 10 is provided with a connector 21, and the mask 1 is threadedly connected to the connector 21 to facilitate the connection of the mixed gas outlet 10 of the mask 1 and make disassembly and assembly convenient; at the same time, the oxygen inlet 8 and the anesthetic gas inlet 9 are respectively connected with plugs 22 to facilitate the connection of the oxygen supply line 3 and the anesthetic gas supply line 4.

[0024] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of the technical solution of this utility model.

Claims

1. An inhalation anesthesia device, characterized in that, The device includes a mask (1), an adjustment mechanism (2), an oxygen supply line (3), and an anesthetic gas supply line (4). The adjustment mechanism (2) includes an adjustment connector (5) and an adjustment knob (6) installed on the adjustment connector (5). The adjustment connector (5) is hollow inside to form a mixing chamber (7). The front end of the adjustment connector (5) is provided with an oxygen inlet (8) and an anesthetic gas inlet (9) that are connected to the mixing chamber (7). The oxygen supply line (3) and the anesthetic gas supply line (4) are respectively connected to the oxygen inlet (8) and the anesthetic gas inlet (9). The rear end of the adjustment connector (5) is provided with a mixed gas outlet (10) that is connected to the mixing chamber (7). The mask (1) is connected to the mixed gas outlet (10). The adjustment knob (6) is rotatably installed in the mixing chamber (7). The adjustment knob (6) is provided with an arc-shaped adjustment hole (11). During the rotation of the adjustment knob (6), the adjustment hole (11) can adjust the opening size of the oxygen inlet (8) and the anesthetic gas inlet (9).

2. The inhalation anesthesia device according to claim 1, characterized in that, The adjustment knob (6) includes an adjustment seat (12) arranged in a frustum shape. One end of the adjustment seat (12) abuts against the cavity wall of the mixing chamber (7), and the edge of the other end extends to a drive part (13). The center of the adjustment seat (12) is rotatably engaged with a rotating shaft (14) arranged on the inner wall of the mixing chamber (7). An installation hole (15) is provided on the adjustment joint (5), and the drive part (13) protrudes out of the outside of the adjustment joint (5) through the installation hole (15).

3. The inhalation anesthesia device according to claim 2, characterized in that, The upper and lower surfaces of the adjustment joint (5) are symmetrically provided with mounting holes (15), and the two symmetrical edges of the adjustment knob (6) protrude out of the outside of the adjustment joint (5) through the two mounting holes (15).

4. The inhalation anesthesia device according to claim 2, characterized in that, A sealing ring (17) is provided around the edge of the mounting hole (15), and the sealing ring (17) is sealed to the adjusting knob (6).

5. The inhalation anesthesia device according to claim 2, characterized in that, The inner wall of the mixing chamber (7) is provided with an arc-shaped limiting groove (18), and the end of the adjusting seat (12) is provided with a limiting protrusion (19) that slides with the limiting groove (18). The two ends of the limiting groove (18) abut against the limiting protrusion (19) to limit the rotation of the adjusting knob (6).

6. The inhalation anesthesia device according to claim 1, characterized in that, The mixing chamber (7) is provided with several baffles (20).

7. The inhalation anesthesia device according to claim 1, characterized in that, The mixed gas outlet (10) is provided with a connector (21), and the mask (1) is threadedly connected to the connector (21).

8. The inhalation anesthesia device according to claim 1, characterized in that, The oxygen inlet (8) and the anesthetic gas inlet (9) are respectively connected to connectors (22).

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