Waste anesthetic gas extraction device

Abstract

The utility model belongs to the technical field of waste anesthetic gas extraction equipment, and particularly relates to a waste anesthetic gas extraction device. The device comprises an air exhaust pipeline, one end of the air exhaust pipeline is provided with an air exhaust assembly used for exhausting waste anesthetic gas, and a supporting rod is vertically arranged below the other end of the air exhaust pipeline; a clamping assembly used for being clamped on a sickbed is arranged at the bottom of the supporting rod, a supporting plate is arranged at the top of the supporting rod, and a locking assembly used for locking the other end of the air exhaust pipeline to the supporting plate is arranged on the supporting plate. The clamping assembly is arranged, the supporting rod is arranged on the clamping assembly, the supporting plate is arranged on the supporting rod, then the air exhaust pipeline is locked on the supporting plate, and the clamping assembly is clamped on a sickbed, so that the air exhaust pipeline can be supported on the sickbed, and the problem that the burden is increased due to the fact that medical staff need to hold the air exhaust pipeline by hand is solved; therefore, the burden of medical staff is relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of anesthetic waste gas extraction equipment, in particular to an anesthetic waste gas extraction device. Background Art

[0002] Patients generally need anesthesia before surgery. Anesthesia includes inhalation anesthesia, which is anesthesia that enters the body through the respiratory tract through a mask or endotracheal tube. Through mask or endotracheal tube anesthesia, after the anesthetic is inhaled through the respiratory tract, the patient will exhale gas with trace amounts of anesthetics, which are released into the environment, thereby producing anesthetic waste gas. These anesthetic waste gases are then released into the atmosphere. At this time, since anesthesia is performed in a semi-closed or semi-open system, patients and medical staff will inhale the anesthetic waste gas, which will not only cause symptoms such as headache, dizziness, fatigue, and irritability, but also pose certain health hazards.

[0003] Therefore, it is necessary to extract the anesthetic waste gas. During the extraction process, an anesthetic waste gas extraction device can be used for extraction. Most of the currently available anesthetic waste gas extraction devices are composed of an exhaust pump and an exhaust pipe. When in use, the medical staff aligns the exhaust pipe with the patient's mask or endotracheal tube, and then turns on the exhaust pump to extract the anesthetic waste gas from the patient's mask or endotracheal tube.

[0004] In the above-mentioned prior art, although the anesthetic waste gas can be extracted, the medical staff needs to hold the exhaust pipe all the time when the exhaust pipe is in use, so that the exhaust pipe is located around the patient's mask or endotracheal tube. The holding process requires a certain amount of time and effort. Therefore, during the use of the prior art, it is not convenient to directly fix the exhaust pipe around the patient's mask or endotracheal tube, which increases the burden on medical staff. Utility Model Content

[0005] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an anesthetic waste gas extraction device to solve the problem of increasing the burden on medical staff.

[0006] The anesthetic waste gas extraction device comprises an exhaust pipe, one end of which is provided with an exhaust assembly for extracting anesthetic waste gas, and a support rod is vertically arranged below the other end of the exhaust pipe; a clamping assembly for clamping on a hospital bed is arranged at the bottom of the support rod, and a support plate is arranged at the top of the support rod, and a locking assembly for locking the other end of the exhaust pipe on the support plate is arranged on the support plate.

[0007] Furthermore, the air extraction component includes an air extraction pump, the air inlet end of the air extraction pump is connected and communicated with one end of the air extraction pipeline; the air outlet end of the air extraction pump is connected to an air outlet pipe communicated therewith.

[0008] Further, a box body is arranged on the left side of the air extraction pump, a bottom plate is arranged below the box body, and both the box body and the air extraction pump are installed on the top of the bottom plate; a first through hole communicating inside and outside is formed in the right side wall of the box body, and the air outlet end of the air outlet pipe passes through the first through hole and is located inside the box body; a second through hole communicating inside and outside is formed in the left side wall of the box body, and an exhaust pipe is installed in the second through hole; a filter net for filtering anesthetic waste gas is vertically arranged inside the box body.

[0009] Further, an activated carbon net installed inside the box body is vertically arranged on the left side of the filter net.

[0010] Further, a third through hole for the tops of the activated carbon net and the filter net to pass through is formed in the top of the box body, a connecting plate is arranged on the top of the box body, the tops of the activated carbon net and the filter net both pass through the third through hole and are fixed on the connecting plate, and a handle is installed on the top of the connecting plate.

[0011] Further, a first annular groove is formed in the top of the box body, and a second annular groove matched with the first annular groove is formed in the bottom of the connecting plate; a rubber ring for preventing anesthetic waste gas from leaking between the box body and the connecting plate is installed in the first annular groove.

[0012] Further, the clamping assembly includes a limiting plate, and the limiting plate is in a "C"-shaped structure; the bottom of the support rod is fixed on the top of the limiting plate; a clamping plate is horizontally arranged inside the limiting plate, a first threaded hole communicating inside and outside is formed in the bottom of the limiting plate, a screw rod in threaded fit with the first threaded hole is inserted into the first threaded hole, and the upper end of the screw rod is in rotational fit connection with the clamping plate.

[0013] Further, the support rod is a telescopic rod.

[0014] Further, the locking assembly is a clamp, and the shell of the clamp is fixed on the top of the support plate.

[0015] Further, an air suction hood is fixed on the outer side wall of the other end of the air extraction pipe.

[0016] Further, a telescopic plate is arranged on the right side of the support plate, a groove for the telescopic plate to penetrate into is formed in the right side wall of the support plate, the telescopic plate penetrates into the groove and can slide left and right in the groove; a second threaded hole communicating with the inside of the groove is formed in the bottom of the support plate, and a screw in threaded fit with the second threaded hole is inserted into the second threaded hole; in the tightened state of the screw, the screw abuts against the bottom of the telescopic plate.

[0017] Furthermore, the support plate is hinged at the top of the support rod and can swing up and down; the support rod is provided with a sliding sleeve that slides up and down with the support rod, and an adjusting rod for adjusting the angle of the support plate is provided between the support plate and the sliding sleeve, one end of the adjusting rod is hinged to the bottom of the support plate, and the other end is hinged to the outer wall of the sliding sleeve; a third threaded hole that communicates inside and outside is provided on the sliding sleeve, and a fastening screw is installed in the third threaded hole.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides a clamping assembly, a support rod is provided on the clamping assembly, a support plate is provided on the support rod, and then the exhaust pipe is locked on the support plate, and then the clamping assembly is clamped on the bed, so that the exhaust pipe can be supported on the bed, avoiding the problem of medical staff needing to hold the exhaust pipe and increasing the burden. Therefore, the utility model reduces the burden on medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 for Figure 1 Main view structure diagram;

[0022] Figure 3 This is a schematic diagram of the structure after the sliding sleeve moves upward.

[0023] The names of the components in the figure are: 1, bottom plate 2, activated carbon net 3, filter net 4, knob 5, screw 6, splint 7, limit plate 8, support rod 9, sliding sleeve 10, fastening screw 11, adjusting rod 12, suction hood 13, telescopic plate 14, support plate 15, clamp 16, exhaust pipe 17, exhaust pump 18, exhaust pipe 19, box body 20, handle 21, connecting plate 22, rubber ring 23, push rod 24, exhaust pipe 25, universal wheel. DETAILED DESCRIPTION

[0024] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0025] Example

[0026] The anesthetic waste gas extraction device described in this embodiment is as follows: Figure 1 and Figure 2As shown, it includes an exhaust pipe 16, one end of which is provided with an exhaust pump 17, the air inlet end of the exhaust pump 17 is connected and communicated with one end of the exhaust pipe 16; the exhaust end of the exhaust pump 17 is connected with an exhaust pipe 18 communicated with it; this section of the scheme as a whole constitutes an exhaust assembly for extracting anesthetic waste gas; one end of the exhaust pipe 16 is Figure 1 The left end of the air extraction pipe 16 in the middle; the air extraction pump 17 is a known technology in the prior art. The working principle of the air extraction pump is the same as that of the micro vacuum pump. Both are circular motions of the motor. The diaphragm inside the pump is made to do reciprocating motions through a mechanical device, thereby compressing and stretching the air in the pump chamber of a fixed volume to form a vacuum (negative pressure), and a pressure difference is generated at the pump suction port and the external atmospheric pressure. Under the action of the pressure difference, the gas is pressed (sucked) into the pump chamber and then discharged from the exhaust port; after the air extraction pump 17 is installed, it is electrically connected to a battery and a control switch, respectively. The battery is used to power the air extraction pump 17. Of course, the air extraction pump 17 can also be directly connected to an external power supply; when in use, turn on the control switch, the air extraction pump 17 starts to generate negative pressure, and the air inlet end ( Figure 1 The right end of the anesthetic waste gas is placed at the position where the anesthetic waste gas is generated, and then the anesthetic waste gas can be sucked through the exhaust pipe 16 and discharged from the operating room through the exhaust pipe 18;

[0027] In the specific implementation process, the air pump 17 in the air extraction assembly can also be replaced by a vacuum pump;

[0028] like Figure 1 As shown, a box body 19 is arranged on the left side of the suction pump 17, and a bottom plate 1 is arranged below the box body 19, and the box body 19 and the suction pump 17 are both installed on the top of the bottom plate 1; a first through hole communicating with the inside and outside is opened on the right side wall of the box body 19, and the outlet end of the air outlet pipe 18 passes through the first through hole and is located in the box body 19; a second through hole communicating with the inside and outside is opened on the left side wall of the box body 19, and an exhaust pipe 24 is installed in the second through hole; a filter screen 3 for filtering anesthetic waste gas is vertically arranged in the box body 19; the outlet end of the air outlet pipe 18 ( Figure 1 After the anesthetic waste gas is discharged into the box body 19, it will be filtered through the filter net 3, so that impurities in the waste gas can be filtered on the filter net; the filtered waste gas is then discharged from the exhaust pipe 24, and the exhaust end ( Figure 1 The left end of the middle exhaust pipe 24 is directly arranged outside the operating room, and the waste gas after filtering can be directly discharged from the operating room;

[0029] like Figure 1As shown, an activated carbon net 2 installed in the box 19 is vertically arranged on the left side of the filter net 3, so that when the anesthetic waste gas passes through the activated carbon net 2, the odor and harmful gases carried by the gas can be removed:

[0030] like Figure 1 As shown, a third through hole is provided on the top of the box body 19 for the top of the activated carbon net 2 and the filter net 3 to pass through, and a connecting plate 21 is provided on the top of the box body 19. The tops of the activated carbon net 2 and the filter net 3 are fixed on the connecting plate 21 through the third through hole, and a handle 20 is installed on the top of the connecting plate 21; the design of the third through hole makes it convenient to take out the activated carbon net 2 and the filter net 3 from the box body 19, and then replace or clean them; the design of the connecting plate 21 makes it convenient to take out the activated carbon net 2 and the filter net 3 at the same time, which is more convenient and quick when taking them out; the design of the handle 20 makes it easy to operate the connecting plate 21 to drive the activated carbon net 2 and the filter net 3 to move; when in use, the operating handle 20 drives the connecting plate 21 to move upward, and the connecting plate 21 drives the activated carbon net 2 and the filter net 3 to be taken out from the box body 19;

[0031] like Figure 1 As shown, a first annular groove is provided on the top of the box body 19, and a second annular groove matching the first annular groove is provided on the bottom of the connecting plate 21; a rubber ring 22 is installed in the first annular groove to prevent the anesthetic waste gas from leaking from between the box body 19 and the connecting plate 21; the first annular groove and the second annular groove have the same size and are directly opposite to each other; after the connecting plate 21 drives the activated carbon net 2 and the filter net 3 to be installed in the box body 19, a part of the rubber ring 22 is embedded in the second annular groove on the connecting plate 21; therefore, through the design of the rubber ring 22, the anesthetic waste gas is prevented from leaking from the gap between the box body 19 and the connecting plate 21 as much as possible;

[0032] Further preferably, four universal wheels 25 are installed at the bottom of the bottom plate 1, and the four universal wheels 25 are arranged in a rectangular shape. A push rod 23 is installed at the top of the bottom plate 1; the four universal wheels 25 are preferably universal wheels 25 with a self-locking function; when in use, the push rod 23 can be operated to drive the universal wheels 25 to roll, thereby driving the air extraction component and the box 19 to move, so that the air extraction component and the box 19 can be moved more time-saving and labor-saving;

[0033] like Figure 1 As shown, a support rod 8 is vertically arranged below the other end of the exhaust pipe 16; the other end of the exhaust pipe 16 is Figure 1 The right end of the middle air extraction pipe 16;

[0034] like Figure 1 and Figure 2As shown in the figure, a limit plate 7 is provided at the bottom of the support rod 8. The limit plate 7 is in a "C" - shaped structure. The bottom of the support rod 8 is fixed to the top of the limit plate 7. A clamping plate 6 is horizontally arranged inside the limit plate 7. A first threaded hole communicating with the inside and outside is opened at the bottom of the limit plate 7. A screw rod 5 in threaded fit with it is inserted into the first threaded hole. The upper end of the screw rod 5 is rotatably connected to the clamping plate 6. The overall scheme of this paragraph constitutes a clamping assembly for clamping on the hospital bed. When specifically implementing the rotational connection, a blind hole can be opened at the bottom of the clamping plate 6, and a bearing is installed in the blind hole. The outer ring of the bearing is fixed in the blind hole, and the upper end of the screw rod 5 is fixed to the inner ring of the bearing. Therefore, when twisting the screw rod 5, the clamping plate 6 can be driven to move up and down without flipping, thus realizing the rotational connection. When in use, the limit plate 7 is stuck on the hospital bed, and then the screw rod 5 is twisted to drive the clamping plate 6 to move upward, and the hospital bed can be clamped between the clamping plate 6 and the limit plate 7, then the support rod 8 is fixed on the hospital bed.

[0035] In the specific implementation process, a knob 4 for conveniently driving its rotation can be fixed to the lower end of the screw rod 5 in the clamping assembly. Through the design of the knob 4, it can be more relaxed when rotating the screw rod 5.

[0036] As Figure 1 shown in the figure, a support plate 14 is provided at the top of the support rod 8. After the support plate 14 is arranged on the support rod 8, the support plate 14 is preferably made of aluminum. Aluminum has the advantages of light weight and easy processing.

[0037] As Figure 1 shown in the figure, a clamp 15 is provided on the support plate 14. The housing of the clamp 15 is fixed to the top of the support plate 14. The overall scheme of this paragraph constitutes a locking assembly for locking the other end of the air extraction pipe 16 on the support plate 14. The clamp 15 is a known technology, which is mainly composed of a housing, a bearing, a spring band and a fastening screw, etc. When in use, the other end of the air extraction pipe 16 is placed inside the clamp 15 and then fixed on the clamp 15. Because the clamp 15 is located on the support plate 14, the other end of the air extraction pipe 16 is locked on the support plate 14.

[0038] Further preferably, several clamps 15 can be installed on the support plate 14, so that the air extraction pipe 16 can be fixed on the support plate 14 more stably.

[0039] In the specific implementation process, the clamp 15 in the locking assembly can be replaced by a strap. One end of the strap is fixed to the support plate 14, and the other end of the strap is provided with a hook - and - loop fastener rough surface. A hook - and - loop fastener hook surface is installed on the top of the support plate 14. Then the other end of the air extraction pipe 16 is placed between the strap and the support plate 14, and then the hook - and - loop fastener rough surface on the strap is adhered to the hook - and - loop fastener hook surface to lock the air extraction pipe 16 on the support plate 14.

[0040] As Figure 1 As shown, the support rod 8 is a telescopic rod, and the support rod 8 is composed of two upper and lower hollow rods. The outer diameter of the upper hollow rod is smaller than the inner diameter of the lower hollow rod. The upper hollow rod is provided with a plurality of first plug holes that are connected to the left and right, and the lower hollow rod is provided with a second plug hole that is connected to the left and right. The center lines of the first plug hole and the second plug hole are located on the same straight line. The bottom end of the upper hollow rod is inserted into the top end of the lower hollow rod, and then the first plug hole and the second plug hole are aligned in pairs, and then the pull pin that fixes the upper hollow rod and the lower hollow rod is inserted into the aligned plug holes; by designing the support rod 8 as a telescopic rod, the height of the support plate 14 can be adjusted, so that the height of the exhaust pipe 16 can be adjusted;

[0041] like Figure 1 As shown, an air suction hood 12 is fixed on the outer side wall of the other end of the air suction pipe 16. Through the design of the air suction hood 12, when the other end of the air suction pipe 16 inhales the anesthetic waste gas, the anesthetic waste gas is inhaled into the air suction pipe 16 as comprehensively as possible;

[0042] like Figure 1 and Figure 2 As shown, a telescopic plate 13 is arranged on the right side of the support plate 14, and a groove for the telescopic plate 13 to penetrate is provided on the right side wall of the support plate 14, and the telescopic plate 13 is inserted into the groove and can slide left and right in the groove; a second threaded hole communicating with the inside of the groove is provided at the bottom of the support plate 14, and a screw threadedly matched with the second threaded hole is installed in the second threaded hole; when the screw is tightened, the screw abuts against the bottom of the telescopic plate 13; when in use, when the position of the other end of the exhaust pipe 16 needs to be adjusted, a locking component is also installed on the telescopic plate 13, and then the telescopic plate 13 is pulled The position of the other end of the exhaust pipe 16 can be adjusted. When it is adjusted to a suitable position, the exhaust pipe 16 is locked on the telescopic plate 13 and the support plate 14; after locking, the position of the telescopic plate 13 is fixed by tightening the screws; through the design of the telescopic plate 13, the length between the support plate 14 and the telescopic plate 13 can be adjusted. When the exhaust pipe 16 is locked on the support plate 14 and the telescopic plate 13, the position of the other end of the exhaust pipe 16 can be adjusted. After adjustment, it is convenient to adjust the position of the exhaust pipe 16 according to different scenes of the operating room;

[0043] like Figure 1 and Figure 3As shown, the support plate 14 is hinged at the top of the support rod 8 and can swing up and down; the support rod 8 is sleeved with a sliding sleeve 9 that slides up and down therewith, and an adjusting rod 11 for adjusting the angle of the support plate 14 is arranged between the support plate 14 and the sliding sleeve 9, one end of the adjusting rod 11 is hinged at the bottom of the support plate 14, and the other end thereof is hinged on the outer wall of the sliding sleeve 9; a third threaded hole that communicates inside and outside is provided on the sliding sleeve 9, and a fastening screw 10 is inserted into the third threaded hole; when the support plate 14 is specifically hinged, a first through hole that communicates front and back is provided on the support plate 14, and a second through hole that communicates front and back is provided on the support rod 8, and the center lines of the first through hole and the second through hole are located on the same straight line, and then hinged rods are independently inserted into the first through hole and the second through hole, and both ends of the hinged rod are provided with means to prevent it from being inserted from the first through hole and the second through hole. The nut slides out of the perforation, and when the hinge rod is inserted into the perforation, the support plate 14 can swing up and down on the support rod 8, thereby realizing hinge connection; when the adjusting rod 11 is specifically hinged, it can be hinged through the hinge seat, and the hinge seat is an existing known technology. The hinge seat includes two front and rear support blocks, and both ends of the adjusting rod 11 are located between the support blocks. The front and rear sides of the adjusting rod 11 are equipped with a rotating shaft, and the rotating shaft is installed on the support block through a bearing. A hole is opened on the support block, and the outer ring of the bearing is fixed in the hole, and the rotating shaft is fixed in the inner ring of the bearing, so that the adjusting rod 11 is hinged; when in use, the sliding sleeve 9 is driven to move up and down on the support rod 8, thereby driving the adjusting rod 11 to move, and the movement of the adjusting rod 11 can drive the support plate 14 to move, and the angle of the support plate 14 will change during the movement, such as Figure 3 When the sliding sleeve 9 moves upward, for example, the support plate 14 changes to a state of being higher on the left and lower on the right; when the angle of the support plate 14 is adjusted, the angle of the exhaust pipe 16 can be driven to be adjusted, so when the patient lies on the bed and inhales the anesthetic, the angle of the exhaust pipe 16 can be adjusted according to the position of the mask or the endotracheal tube, thereby improving the practicality of use; when the sliding sleeve 9 slides to a suitable position according to the situation of the bed in the operating room, the position of the sliding sleeve 9 is fixed by tightening the fixing screw 10;

[0044] During specific use: first, use the clamping assembly to clamp the support rod 8 on the bed, and then lock the exhaust pipe 16 on the support plate 14 above the support rod 8; then adjust the position of the exhaust pipe 16 to around the anesthetic waste gas, and then open the exhaust assembly to discharge the anesthetic waste gas; in this use process, because the exhaust pipe 16 is located on the support plate 14, the support plate 14 is located on the support rod 8, and the support rod 8 is clamped on the bed by the clamping assembly, it is possible to support the exhaust pipe 16. When the exhaust pipe 16 is supported, the anesthetic waste gas can be extracted; this avoids the time-consuming and laborious problem of medical staff holding the exhaust pipe 16 to support it, thereby freeing the hands of medical staff and reducing the burden on medical staff.

Claims

1. An anesthesia waste gas extraction device, including an extraction pipeline (16), one end of the extraction pipeline (16) is provided with an extraction component for extracting anesthesia waste gas. Characterized in that: A support rod (8) is vertically arranged below the other end of the extraction pipeline (16); a clamping component for clamping on the hospital bed is arranged at the bottom of the support rod (8), a support plate (14) is arranged at the top of the support rod (8), and a locking component for locking the other end of the extraction pipeline (16) on the support plate (14) is arranged on the support plate (14).

2. The anesthesia waste gas extraction device according to claim 1, Characterized in that: The extraction component includes an extraction pump (17), the intake end of the extraction pump (17) is connected and communicated with one end of the extraction pipeline (16); the outlet end of the extraction pump (17) is connected with an outlet pipe (18) communicated therewith.

3. The anesthesia waste gas extraction device according to claim 2, Characterized in that: A box body (19) is arranged on the left side of the extraction pump (17), a bottom plate (1) is arranged below the box body (19), both the box body (19) and the extraction pump (17) are installed on the top of the bottom plate (1); a first through hole communicating inside and outside is opened on the right side wall of the box body (19), and the outlet end of the outlet pipe (18) passes through the first through hole and is located inside the box body (19); a second through hole communicating inside and outside is opened on the left side wall of the box body (19), and an exhaust pipe (24) is installed in the second through hole; a filter net (3) for filtering anesthesia waste gas is vertically arranged inside the box body (19).

4. The anesthesia waste gas extraction device according to claim 3, Characterized in that: An activated carbon net (2) installed inside the box body (19) is vertically arranged on the left side of the filter net (3).

5. The anesthesia waste gas extraction device according to claim 4, Characterized in that: A third through hole for the top of the activated carbon net (2) and the filter net (3) to pass through is opened on the top of the box body (19), a connecting plate (21) is arranged on the top of the box body (19), the tops of the activated carbon net (2) and the filter net (3) both pass through the third through hole and are fixed on the connecting plate (21), and a handle (20) is installed on the top of the connecting plate (21).

6. The anesthesia waste gas extraction device according to claim 5, Characterized in that: A first annular groove is opened on the top of the box body (19), a second annular groove matching with the first annular groove is opened on the bottom of the connecting plate (21); a rubber ring (22) for preventing anesthesia waste gas from leaking between the box body (19) and the connecting plate (21) is installed in the first annular groove.

7. The anesthesia waste gas extraction device according to claim 1, Characterized in that: The clamping component includes a limiting plate (7), and the limiting plate (7) is in a "C"-shaped structure; the bottom of the support rod (8) is fixed on the top of the limiting plate (7); a clamping plate (6) is horizontally arranged inside the limiting plate (7), a first threaded hole communicating inside and outside is opened on the bottom of the limiting plate (7), a screw rod (5) in threaded fit therewith is installed in the first threaded hole, and the upper end of the screw rod (5) is in rotational fit connection with the clamping plate (6).

8. The anesthesia waste gas extraction device according to claim 1, Features: The support rod (8) is a telescopic rod.

9. The anesthetic waste gas extraction device according to claim 1, Features: The locking assembly is a clamp (15), and a shell of the clamp (15) is fixed on the top of the support plate (14).

10. The anesthetic waste gas extraction device according to claim 1, Features: An air suction hood (12) is fixed on the outer side wall of the other end of the air extraction pipeline (16).

11. The anesthetic waste gas extraction device according to claim 1, Features: A telescopic plate (13) is arranged on the right side of the support plate (14), and a groove for the telescopic plate (13) to penetrate is provided on the right side wall of the support plate (14), and the telescopic plate (13) penetrates into the groove and can slide left and right in the groove; a second threaded hole communicating with the inside of the groove is provided at the bottom of the support plate (14), and a screw threadably matched with the second threaded hole is installed in the second threaded hole; when the screw is tightened, the screw abuts against the bottom of the telescopic plate (13).

12. The anesthetic waste gas extraction device according to claim 11, Features: The support plate (14) is hinged on the top of the support rod (8) and can swing up and down; a sliding sleeve (9) is sleeved on the support rod (8) and is slidably matched with the support rod (8) up and down; an adjusting rod (11) for adjusting the angle of the support plate (14) is arranged between the support plate (14) and the sliding sleeve (9); one end of the adjusting rod (11) is hinged on the bottom of the support plate (14), and the other end is hinged on the outer wall of the sliding sleeve (9); a third threaded hole communicating with the inside and outside is provided on the sliding sleeve (9), and a fastening screw (10) is inserted into the third threaded hole.

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