Waste anesthetic gas extraction device

By designing an anesthetic waste gas extraction device with magnetic rings and snap-fit ​​components, the problems of inaccurate docking and poor sealing were solved, achieving efficient waste gas extraction and sealing, and meeting practical application requirements.

CN224168307UActive Publication Date: 2026-04-28GUANGDONG GENERAL HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG GENERAL HOSPITAL
Filing Date
2025-05-26
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing anesthetic waste gas extraction devices suffer from inaccurate connection and poor sealing when connected to the exhaust outlet of anesthesia machines, leading to waste gas leakage and reducing waste gas treatment efficiency.

Method used

An anesthetic waste gas extraction device was designed, which includes a suction machine, auxiliary components, and a snap-fit ​​assembly. The magnetic ring of the suction hose is tightly fitted with the exhaust gas outlet of the anesthesia machine, and the suction hose is fixed by the snap-fit ​​assembly to ensure the accuracy and sealing of the connection.

Benefits of technology

It improves the efficiency of exhaust gas extraction, avoids exhaust gas leakage, enhances utilization efficiency, and reduces manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of anesthesiology department appliances, and discloses an anesthetic waste gas extraction device which comprises an air extractor provided with an air outlet and an air inlet and further provided with an auxiliary assembly and a clamping assembly. The auxiliary assembly comprises an air suction hose fixedly connected with the air inlet, a limiting roller fixedly installed on the air exhauster and a bottom plate connected with the air exhauster in an inserted mode. According to the waste anesthetic gas extraction and removal device, the auxiliary assembly is arranged on the gas extractor, the gas suction hose is tightly attached to the waste gas outlet of the anesthesia machine through the magnetic attraction force of the magnetic ring at the end of the gas suction hose connected with the gas inlet, and therefore the butt joint precision degree is improved, and the waste gas extraction and removal efficiency is ensured; in addition, when the air extractor is in an idle state, the air suction hose can be limited on the side face of the air extractor, and the situation that follow-up use is affected due to the fact that the air suction hose is placed at will is avoided.
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Description

Technical Field

[0001] This utility model relates to the technical field of equipment for anesthesiology departments, specifically to an anesthetic waste gas extraction device. Background Technology

[0002] In traditional anesthesia procedures, anesthetic waste gas is usually directly discharged into the operating room. This not only causes patients to inhale the anesthetic waste gas a second time, affecting the dosage of the anesthetic, but also causes it to be inhaled by medical staff in the operating room. Long-term exposure may harm their health. Therefore, the use of anesthetic waste gas extraction devices is crucial. However, existing anesthetic waste gas extraction devices often have problems such as inaccurate connection and poor sealing when connected to the exhaust outlet of the anesthesia machine, resulting in waste gas leakage and reducing waste gas treatment efficiency. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides an anesthetic waste gas extraction device, which solves the problems mentioned in the background.

[0004] This utility model provides the following technical solution: an anesthetic waste gas extraction device, comprising: an extraction machine, wherein the extraction machine is provided with an exhaust port and an air inlet, and the extraction machine is also provided with an auxiliary component and a snap-fit ​​component; the auxiliary component includes an air inlet hose fixedly connected to the air inlet, a limiting roller fixedly installed on the extraction machine, and a base plate inserted into the extraction machine, wherein a column is fixedly installed on the upper surface of the base plate, a slide block is slidably provided on the column, the slide block is connected to the end of the air inlet hose, and a fastening bolt is threadedly connected to the slide block, and the upper end of the column is also fixedly... A stop block is fixedly installed, and a magnetic ring is embedded in the open end face of the suction hose; the snap-fit ​​assembly includes a rotating shaft rotatably disposed inside the column, and a double ball-head rod and a single ball-head rod slidably disposed inside the base plate. An insert block is fixedly installed at the end of the single ball-head rod, and a spring is disposed between the insert block and the base plate. An elliptical block is fixedly installed at the lower end of the rotating shaft, and a knob is fixedly installed at the upper end of the rotating shaft. A connecting plate is fixedly installed on the shaft body, and a torsion spring is fixedly installed on the top surface of the connecting plate. The end of the torsion spring away from the connecting plate is fixedly connected to the base plate.

[0005] Preferably, there are two limiting rollers, and the limiting rollers can contact the suction hose.

[0006] Preferably, the open end of the inhalation hose can be connected to the exhaust outlet of the anesthesia machine via a magnetic ring.

[0007] Preferably, one end of the double-ball-head rod can contact the elliptical block, and the other end of the double-ball-head rod can contact the ball-head end of the single-ball-head rod.

[0008] Preferably, the plug can be plugged into the vacuum pump, and there are two plugs in total.

[0009] Preferably, the two ends of the spring are fixedly connected to the insert block and the base plate respectively, and the rod body of the single ball head is located in the internal cavity of the spring.

[0010] Preferably, in the initial state, the end point of the major axis of the elliptical block is in contact with the end of the double-ball-head rod.

[0011] Preferably, the knob is located at the upper end of the shaft through the column, and the outer surface of the knob is provided with anti-slip texture.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This anesthetic waste gas extraction device has an auxiliary component on the suction machine. The magnetic attraction of the magnetic ring at the end of the suction hose connected to the air inlet ensures that the suction hose is tightly fitted to the exhaust outlet of the anesthesia machine, thereby improving the accuracy of the connection and ensuring the efficiency of waste gas extraction. At the same time, other components included in the auxiliary component can also restrict the suction hose to the side of the suction machine when the machine is not in use, preventing the suction hose from being placed randomly and affecting subsequent use.

[0014] 2. This anesthetic waste gas extraction device, by setting up a snap-fit ​​component, allows users to quickly restrict the position of the inhalation hose, thereby improving the overall efficiency of the device. Furthermore, the snap-fit ​​component has the advantages of simple structure, convenient operation, and low manufacturing cost, making it suitable for practical application scenarios and meeting actual usage needs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the magnetic ring structure of this utility model;

[0017] Figure 3 This is an exploded view of the base plate structure of this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the base plate structure of this utility model;

[0019] Figure 5 This is an exploded view of the elliptical block structure of this utility model.

[0020] In the diagram: 1. Air extractor; 11. Exhaust port; 2. Air inlet; 3. Auxiliary components; 31. Suction hose; 32. Limiting roller; 33. Base plate; 34. Column; 35. Slide; 36. Stop block; 37. Fastening bolt; 38. Magnetic ring; 4. Snap-fit ​​assembly; 41. Knob; 42. Insert block; 43. Spring; 44. Single ball joint rod; 45. Double ball joint rod; 46. Elliptical block; 47. Rotating shaft; 48. Connecting plate; 49. Torsion spring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 An anesthetic waste gas extraction device includes: a vacuum pump 1, which is provided with an exhaust port 11 and an air inlet 2, and is also provided with an auxiliary component 3 and a snap-fit ​​component 4.

[0023] The auxiliary component 3 includes an inhalation hose 31 fixedly connected to the air inlet 2, a limiting roller 32 fixedly installed on the suction machine 1, and a base plate 33 inserted into the suction machine 1. A column 34 is fixedly installed on the upper surface of the base plate 33. A slide block 35 is slidably installed on the column 34. The slide block 35 is connected to the end of the inhalation hose 31, and a fastening bolt 37 is threadedly connected to the slide block 35. A stop block 36 is also fixedly installed at the upper end of the column 34. The stop block 36 can prevent the slide block 35 from detaching, thereby ensuring a stable connection between the various components. A magnetic ring 38 is embedded in the open end face of the inhalation hose 31. There are two limiting rollers 32, and the limiting rollers 32 can contact the inhalation hose 31. The open end of the inhalation hose 31 can be connected to the exhaust gas outlet of the anesthesia machine through the magnetic ring 38.

[0024] The snap-fit ​​assembly 4 includes a rotating shaft 47 rotatably disposed inside the column 34, and a double ball joint rod 45 and a single ball joint rod 44 slidably disposed inside the base plate 33. A plug block 42 is fixedly installed at the end of the single ball joint rod 44, and a spring 43 is disposed between the plug block 42 and the base plate 33. An elliptical block 46 is fixedly installed at the lower end of the rotating shaft 47, and a knob 41 is fixedly installed at the upper end of the rotating shaft 47. A connecting plate 48 is fixedly installed on the shaft body of the rotating shaft 47, and a torsion spring 49 is fixedly installed on the top surface of the connecting plate 48. The end of the torsion spring 49 away from the connecting plate 48 is fixedly connected to the base plate 33. One end of the double ball joint rod 45 can contact the elliptical block 46, and the double ball joint rod... The other end of 45 can contact the ball end of the single ball head rod 44. The plug block 42 can be plugged into the vacuum pump 1, and there are two plug blocks 42 in total. The two ends of the spring 43 are fixedly connected to the plug block 42 and the base plate 33 respectively. The rod body of the single ball head rod 44 is located in the cavity inside the spring 43. This design can prevent the single ball head rod 44 from affecting the normal stroke of the spring 43, so as to ensure the rationality of the overall structural design. In the initial state, the end point of the major axis of the elliptical block 46 is in contact with the end of the double ball head rod 45. The knob 41 is located at the upper end of the rotating shaft 47 passing through the column 34, and the outer surface of the knob 41 is provided with anti-slip texture, which facilitates the actual operation of the user and improves practicality.

[0025] The working principle is as follows: When removing the exhaust gas from the anesthesia machine, simply align one end of the inhalation hose 31 with the magnetic ring 38 with the anesthetic exhaust gas outlet, and the magnetic ring 38 will be attracted by its own magnetism. The other end of the inhalation hose 31 is fixed to the air inlet 2 of the suction machine 1. At this time, the suction machine 1 is started, and the anesthetic exhaust gas can be discharged to the designated location through the exhaust port 11 to avoid affecting the medical staff in the room. The suction machine 1 is an existing technology, so its specific operation steps and principles will not be described in detail.

[0026] After the exhaust gas is removed, the suction hose 31 is passed around the limiting roller 32 fixed on the vacuum pump 1. The knob 41 drives the rotating shaft 47 to rotate inside the column 34. The elliptical block 46 fixed to the end of the rotating shaft 47 rotates together. At this time, the end of the major axis of the elliptical block 46 is misaligned with the end of the double ball-head rod 45. The single ball-head rod 44, which is integrated with the insertion block 42, is also slidably connected to the base plate 33. Therefore, under the elastic force of the springs 43, which are fixed to the insertion block 42 and the base plate 33 respectively, the insertion block 42 slides into the base plate 33. At this time, the base plate 33 can be inserted into the vacuum pump 1. Then, the knob 41 is released. The connecting plate 48 is fixed to the shaft 47. The connecting plate 48 is further connected to the base plate 33 through the torsion spring 49. Therefore, under the elastic force of the torsion spring 49, the rotating shaft 47 drives the elliptical block 46 to rotate in the opposite direction. The end of the major axis of the elliptical block 46 contacts the end of the double ball-head rod 45 again, squeezing the end of the double ball-head rod 45 to slide. The other end of the double ball-head rod 45 is also in a contactable state with the single ball-head rod 44. After the double ball-head rod 45 slides, it can squeeze the single ball-head rod 44 to drive the insert block 42 to slide, so that the insert block 42 is inserted into the air pump 1 to lock the base plate 33 on the air pump 1. The column 34 fixed on the base plate 33 is slidably connected to the slide seat 35. The slide seat 35 is connected to the end of the suction hose 31. Therefore, the height of the end of the suction hose 31 can be adjusted according to different actual needs. At the same time, the slide seat 35 is threaded with a fastening bolt 37. By tightening the fastening bolt 37, the end face of the fastening bolt 37 passes through the side wall of the slide seat 35 and abuts against the column 34 to lock the position of the slide seat 35 and meet the actual needs of anesthetic waste gas extraction.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for removing anesthetic waste gas, characterized in that, include: The air extractor (1) is provided with an exhaust port (11) and an air inlet (2), and the air extractor (1) is also provided with an auxiliary component (3) and a snap-fit ​​component (4). The auxiliary component (3) includes a suction hose (31) fixedly connected to the air inlet (2), a limiting roller (32) fixedly installed on the vacuum pump (1), and a base plate (33) inserted into the vacuum pump (1). A column (34) is fixedly installed on the upper surface of the base plate (33). A slide block (35) is slidably provided on the column (34). The slide block (35) is connected to the end of the suction hose (31), and a fastening bolt (37) is threaded on the slide block (35). A stop block (36) is also fixedly installed on the upper end of the column (34). A magnetic ring (38) is embedded in the open end face of the suction hose (31). The snap-fit ​​assembly (4) includes a rotating shaft (47) rotatably disposed inside the column (34), and a double ball joint rod (45) and a single ball joint rod (44) slidably disposed inside the base plate (33). A plug (42) is fixedly installed at the end of the single ball joint rod (44). A spring (43) is provided between the plug (42) and the base plate (33). An elliptical block (46) is fixedly installed at the lower end of the rotating shaft (47), and a knob (41) is fixedly installed at the upper end of the rotating shaft (47). A connecting plate (48) is fixedly installed on the shaft body of the rotating shaft (47). A torsion spring (49) is fixedly installed on the top surface of the connecting plate (48). The end of the torsion spring (49) away from the connecting plate (48) is fixedly connected to the base plate (33).

2. The anesthetic waste gas extraction device according to claim 1, characterized in that, There are two limiting rollers (32), and the limiting rollers (32) can contact the suction hose (31).

3. The anesthetic waste gas extraction device according to claim 1, characterized in that, The open end of the inhalation hose (31) can be connected to the exhaust outlet of the anesthesia machine via a magnetic ring (38).

4. The anesthetic waste gas extraction device according to claim 1, characterized in that, One end of the double ball-head rod (45) can contact the elliptical block (46), and the other end of the double ball-head rod (45) can contact the ball-head end of the single ball-head rod (44).

5. The anesthetic waste gas extraction device according to claim 1, characterized in that, The plug (42) can be plugged into the vacuum pump (1), and there are two plugs (42).

6. The anesthetic waste gas extraction device according to claim 1, characterized in that, The two ends of the spring (43) are fixedly connected to the insert block (42) and the base plate (33) respectively, and the rod body of the single ball head rod (44) is located in the cavity inside the spring (43).

7. The anesthetic waste gas extraction device according to claim 1, characterized in that, In the initial state, the end of the major axis of the elliptical block (46) is in contact with the end of the double ball head rod (45).

8. The anesthetic waste gas extraction device according to claim 1, characterized in that, The knob (41) is located at the upper end of the shaft (47) through the column (34), and the outer surface of the knob (41) is provided with anti-slip texture.