Clinical anesthetic gas purification device for anesthesiology department

Abstract

The clinical anesthetic gas purification device comprises a purification box, a supporting frame is fixedly connected to the bottom end of the purification box, an electric telescopic rod is fixedly installed on the supporting frame, and a part outlet hole is formed in the middle of the top end of the purification box; the inner side of the part outlet hole is provided with a sealed cover cylinder which is in sliding sealing connection with the part outlet hole, a filtering and purifying assembly is arranged below the sealed cover cylinder, and through combined arrangement of the sealed cover cylinder, the filtering and purifying assembly and the like, when the filtering and purifying assembly is taken out to be maintained, the anesthetic gas in the purifying box can be effectively prevented from being greatly leaked outwards; therefore, waste of the anesthetic gas can be greatly reduced, the anesthetic gas can be effectively prevented from leaking to harm health of medical staff, reliability and safety of the purification device are greatly improved, the filtration and purification assembly can be taken out without disassembling the device or disconnecting the device and the anesthetic gas conveying pipeline, and maintenance efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to a purification device, in particular to an anesthetic gas purification device for clinical use in anesthesia department, which is applied in the technical field of gas purification. Background Art

[0002] Anesthetic gases, also known as inhaled anesthetics, are gases that enter the human body through the respiratory tract, enter the target organs after gas exchange in the lungs, and exert an anesthetic effect. This type of anesthetic occupies an important position in the clinical practice of anesthesia and is widely used in various surgeries.

[0003] In order to prevent the impurities in the anesthetic gas from causing harm to the human body, it is usually necessary to use a purification device to purify the anesthetic gas. Chinese invention patent CN114558394B discloses an anesthetic gas purification device for clinical use in anesthesia department. The anesthetic gas purification device for clinical use in anesthesia department ensures the filtration efficiency of the anesthetic gas through multiple anesthetic gas filtering effects, thereby achieving the effect of anesthetic gas purification, avoiding the effect of impurities in the anesthetic gas affecting the patient's absorption, and improving the patient's comfort during absorption.

[0004] As the purification device is used, it is necessary to regularly disassemble the device to clean, replace, and perform other maintenance operations on the filter purification components (such as the activated carbon plate and HEPA filter in the above patent). Since a large amount of anesthetic gas will remain inside the device (such as the container composed of the center ring, the bottom tank, and the top cover in the above patent), when the device is disassembled for maintenance, a large amount of anesthetic gas in the device will leak out, which will not only cause a waste of anesthetic gas, but also endanger the health of medical staff. Therefore, we propose an anesthetic gas purification device for clinical use in the Department of Anesthesiology. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is: how to prevent a large amount of anesthetic gas from leaking out when the filtering and purification components are maintained.

[0006] In order to solve the above problems, the present invention provides an anesthetic gas purification device for clinical use in anesthesia department, including a purification box, the bottom end of the purification box is connected with an air inlet pipe, the side wall of the purification box is connected with an air outlet pipe, the bottom end of the purification box is fixedly connected with a support frame, an electric telescopic rod is fixedly installed on the support frame, an outlet hole is opened in the middle of the top of the purification box, a close outlet cover cylinder slidably and sealedly connected to the outlet hole is arranged on the inner side of the outlet hole, the close outlet cover cylinder passes through the outlet hole and the bottom end of the close outlet cover cylinder is arranged in an opening shape, a filter purification component is arranged below the close outlet cover cylinder, the filter purification component includes a bottom sealing connecting plate and a top sealing connecting ring matching with the close outlet cover cylinder, the top sealing connecting ring is located above the bottom sealing connecting plate, a tubular filter screen is fixedly connected between the bottom sealing connecting plate and the top sealing connecting ring, the outer side of the tubular filter screen is sleeved with a tubular activated carbon plate matching with the close outlet cover cylinder, and a filter screen is fixedly installed inside the close outlet cover cylinder. An exhaust inner plug matching the top sealing link is installed, the exhaust cover tube and the exhaust inner plug are both slidingly and sealingly connected to the top sealing link, the bottom end of the bottom sealing connecting plate is movably connected to a connecting seat matching it, the output end of the electric telescopic rod passes through the bottom outer wall of the purification box and extends to be fixedly connected to the connecting seat, and the output end of the electric telescopic rod is slidingly and sealingly connected to the bottom outer wall of the purification box, the middle part of the bottom sealing connecting plate and the connecting seat are respectively provided with an upper through-tube hole and a lower through-tube hole, the air inlet pipe passes through the lower through-tube hole and the upper through-tube hole and extends to the inner side of the tubular filter, and the air inlet pipe is slidingly and sealingly connected to the lower through-tube hole and the upper through-tube hole, an outlet controller is fixedly installed on the outer wall of the purification box, and an ejection control module and an outlet control button are arranged on the outlet controller, the outlet control button is signal-connected with the ejection control module, and the ejection control module is signal-connected with the electric telescopic rod.

[0007] In the above-mentioned clinical anesthetic gas purification device for anesthesiology, when the filter purification component is taken out for maintenance, a large amount of anesthetic gas in the purification box can be effectively prevented from leaking out, thereby greatly reducing the waste of anesthetic gas and effectively preventing the leakage of anesthetic gas from endangering the health of medical staff, thereby greatly improving the reliability and safety of the purification device.

[0008] As a further improvement of the present application, the exhaust inner plug is arranged to be cylindrical, the outer diameters of the top sealing link and the tubular activated carbon plate match the inner diameter of the seal cover tube, the inner diameters of the top sealing link and the tubular filter match the diameter of the exhaust inner plug, the diameters of the bottom sealing connecting plate and the connecting seat match the outer diameter of the seal cover tube, the tubular activated carbon plate is movably connected to the tubular filter, and the tubular filter is detachably fixedly connected to the bottom sealing connecting plate and the top sealing link.

[0009] As a further improvement of the present application, a valve control module is also provided on the output controller, an inlet solenoid valve is provided on the air inlet pipe, an outlet solenoid valve is provided on the air outlet pipe, the ejection control module is signal-connected with the valve control module, and the valve control module is signal-connected with the inlet solenoid valve and the outlet solenoid valve, so that the delivery of anesthetic gas can be automatically shut down when the filter purification component is maintained.

[0010] As a further improvement of the present application, an anti-fall ring is sleeved on the outer wall of the close-fitting hood tube, and a sealing gasket is fixedly connected to the bottom end of the anti-fall ring. The bottom end of the sealing gasket and the top end of the purification box are abutted against each other. The anti-fall ring and the sealing gasket can not only prevent the close-fitting hood tube from falling downward, but also improve the sealing of the connection between the close-fitting hood tube and the purification box. A plurality of exhaust holes evenly distributed along a ring shape are provided on the top outer wall of the close-fitting hood tube, which is beneficial to the relative movement between the close-fitting hood tube and the filter purification assembly, and further beneficial to the discharge of anesthetic gas inside the tubular filter.

[0011] As another improvement of the present application, a self-sealing hole assembly is provided in the connecting seat, and the self-sealing hole assembly includes a built-in adjustment groove opened inside the connecting seat and matching the lower through-tube hole, a sealing plug is provided in the built-in adjustment groove and is slidingly and sealingly connected thereto, an end of the sealing plug away from the air intake pipe is fixedly connected to a connecting sealing magnet, a driving-sealing electromagnet is fixedly installed in the built-in adjustment groove, and an elastic pull rope is fixedly connected between the connecting sealing magnet and the driving-sealing electromagnet.

[0012] As another improved supplement of the present application, the built-in adjustment groove is connected to the lower through-tube hole, the end of the sealing plug close to the air intake pipe is set to a semi-cylindrical shape matching the air intake pipe, and the sealing drive electromagnet is located on the side of the joint sealing magnet away from the sealing plug.

[0013] As another improved supplement to the present application, the self-sealing hole component also includes a distance sensor fixedly mounted on the inner wall of the bottom end of the purification box, and a sealing hole control module is also provided in the filtering and purifying component. The ejection control module is signal-connected to the distance sensor and the sealing hole control module, the distance sensor is signal-connected to the sealing hole control module, and the sealing hole control module is signal-connected to the driving and sealing electromagnet, so that in the process of ejecting the filtering and purifying component out of the purification box, the sealing hole control module will control the self-sealing hole component to automatically block and seal the lower pipe hole.

[0014] As another improved supplement to the present application, two connecting rods are fixedly connected to the bottom end of the bottom sealing connecting plate, and two connecting slots matching the connecting rods are provided on the connecting seat. The two connecting rods are movably connected to the two connecting slots respectively to prevent relative movement between the bottom sealing connecting plate and the connecting seat, thereby improving the stability of the device.

[0015] In summary, the present application, through the combined arrangement of the sealing cover tube, the exhaust plug, the filter purification component, the dimension controller, etc., can effectively prevent the anesthetic gas in the purification box from leaking out in large quantities when the filter purification component is taken out for maintenance, thereby greatly reducing the waste of anesthetic gas and effectively preventing the leakage of anesthetic gas from endangering the health of medical staff, greatly improving the reliability and safety of the purification device, and the dimension controller can control the electric telescopic rod to automatically push the filter purification component out of the purification box, so that there is no need to disassemble the device or disconnect the connection between the device and the anesthetic gas delivery pipeline to remove the filter purification component, which is simple and efficient to operate, thereby improving the maintenance efficiency and the practicality of the purification device; through the arrangement of the self-sealing hole component, etc., in the process of pushing the filter purification component out of the purification box, the sealing hole control module will control the self-sealing hole component to automatically block and seal the lower through-pipe hole, without the need for manual sealing of the lower through-pipe hole, which can not only further prevent the leakage of anesthetic gas, but also further reduce manual operation, thereby further improving the reliability and practicality of the purification device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present application; Figure 2 This is a schematic cross-sectional view of the purification box in the first embodiment of the present application; Figure 3 This is a schematic diagram of the cross-sectional structure of the cover tube in the first embodiment of the present application; Figure 4 This is an exploded view of the filtering and purification component in the first embodiment of the present application; Figure 5 This is a schematic diagram of the three-dimensional structure of the connecting seat in the first embodiment of the present application; Figure 6 This is a system structure block diagram of a dimension controller in the first embodiment of the present application; Figure 7 This is a pictographic demonstration diagram of taking out the filter purification component in the first embodiment of the present application; Figure 8 This is a schematic cross-sectional view of the purification box in the second embodiment of the present application; Fig. 9 This is a schematic cross-sectional view of the connecting seat in the second embodiment of the present application; Fig.10 For this application Fig. 9 A schematic diagram of the enlarged structure at A in the middle; Fig.11 This is a schematic diagram of a top cross-sectional structure of a connecting socket in a second embodiment of the present application; Fig.12This is a system structure block diagram of the dimensional controller in the second embodiment of the present application.

[0017] Description of the numbers in the figure: 101, purification box; 102, air inlet pipe; 103, air outlet pipe; 104, support frame; 105, electric telescopic rod; 106, airtight cover tube; 107, exhaust plug; 108, connecting seat; 109, inlet solenoid valve; 110, outlet solenoid valve; 111, anti-fall ring; 112, sealing gasket; 113, lower through-hole; 114, exhaust hole; 115, connecting rod; 116, connecting slot; 118, outlet hole; 002, filter purification component; 201, bottom sealing connecting plate; 202, top sealing chain; 203, tubular filter; 204, tubular activated carbon plate; 205, upper through-hole; 003, outlet controller; 401, built-in adjustment slot; 402, sealing plug; 403, joint sealing magnet; 404, drive sealing electromagnet; 405, elastic pull rope; 406, distance sensor. DETAILED DESCRIPTION

[0018] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0019] The first implementation method: Figure 1-7 The present invention shows an anesthetic gas purification device for clinical use in the anesthesiology department, comprising a purification box 101, the bottom end of which is connected to an air inlet pipe 102, the side wall of which is connected to an air outlet pipe 103, the bottom end of which is fixedly connected to a support frame 104, on which an electric telescopic rod 105 is fixedly mounted, an outlet hole 118 is provided in the middle of the top end of the purification box 101, a sealing outlet cover tube 106 which is slidably and sealingly connected thereto is provided on the inner side of the outlet hole 118, the sealing outlet cover tube 106 passes through the outlet hole 118 and the bottom end of the sealing outlet cover tube 106 is arranged to be open.

[0020] See also Figure 2-5A filter purification component 002 is arranged below the dense cover tube 106, and the filter purification component 002 includes a bottom sealing connecting plate 201 and a top sealing link 202 that match the dense cover tube 106, and the top sealing link 202 is located above the bottom sealing connecting plate 201. A tubular filter 203 is fixedly connected between the bottom sealing connecting plate 201 and the top sealing link 202, and a tubular activated carbon plate 204 that matches it is sleeved on the outer side of the tubular filter 203. An exhaust inner plug 107 that matches the top sealing link 202 is fixedly installed in the dense cover tube 106. The dense cover tube 106 and the exhaust inner plug 107 are both slidably sealed and connected to the top sealing link 202. The bottom end of the bottom sealing connecting plate 201 is movably connected to a connecting seat 108 that matches it. The output end of the electric telescopic rod 105 passes through the outer wall of the bottom end of the purification box 101 and extends to be fixedly connected to the connecting seat 108, and the output end of the electric telescopic rod 105 and the purification box 101 The bottom outer wall of the bottom end is slidably sealed and connected, the middle of the bottom sealing connecting plate 201 and the connecting seat 108 are respectively provided with an upper through-tube hole 205 and a lower through-tube hole 113, the air inlet pipe 102 passes through the lower through-tube hole 113 and the upper through-tube hole 205 and extends to the inner side of the tubular filter 203, and the air inlet pipe 102 is slidably sealed and connected with the lower through-tube hole 113 and the upper through-tube hole 205, the exhaust inner plug 107 is set to be cylindrical, the top sealing link 202 and the tubular activated carbon plate The outer diameter of 204 matches the inner diameter of the exhaust cover tube 106, the inner diameters of the top sealing link 202 and the tubular filter 203 match the diameter of the exhaust inner plug 107, the diameters of the bottom sealing connecting plate 201 and the connecting seat 108 match the outer diameter of the exhaust cover tube 106, the tubular activated carbon plate 204 is movably connected to the tubular filter 203, and the tubular filter 203 is detachably fixedly connected to the bottom sealing connecting plate 201 and the top sealing link 202.

[0021] See also Figure 6 A dimension controller 003 is fixedly installed on the outer wall of the purification box 101. The dimension controller 003 is provided with an ejection control module and a dimension control button. The dimension control button is connected to the ejection control module by signal, and the ejection control module is connected to the electric telescopic rod 105 by signal.

[0022] See also Figure 1-7When purifying the anesthetic gas, the air inlet pipe 102 is connected to the pipeline for conveying unpurified anesthetic gas, and the air outlet pipe 103 is connected to the pipeline for conveying purified anesthetic gas. The unpurified anesthetic gas will enter the inner side of the tubular filter 203 through the air inlet pipe 102, and then pass through the tubular filter 203 and the tubular activated carbon plate 204 to flow to the outer side of the tubular activated carbon plate 204, and then enter the pipeline for conveying purified anesthetic gas through the air outlet pipe 103. When the anesthetic gas passes through the tubular filter 203 and the tubular activated carbon plate 204, the tubular filter 203 and the tubular activated carbon plate 204 will filter and purify the anesthetic gas to remove impurities in the anesthetic gas, thereby achieving the purpose of purifying the anesthetic gas. When it is necessary to filter and purify the anesthetic gas, the anesthetic gas is filtered and purified by the filtration and purification group. When the filter purification component 002 is to be maintained, the ejection control button is pressed to issue an ejection command to the ejection control module. After receiving the command, the ejection control module will start the electric telescopic rod 105, so that the electric telescopic rod 105 pushes the connecting seat 108 and the filter purification component 002 upwards until the filter purification component 002 is completely moved outside the purification box 101 and the connecting seat 108 moves to the ejection hole 118. At this time, the connecting seat 108 will block and seal the ejection hole 118, and then the sealing cover tube 106 is removed to remove the filter purification component 002. Then, the tubular filter 203 and the tubular activated carbon plate 204 can be cleaned, replaced and other maintenance operations. In the process of the electric telescopic rod 105 pushing the connecting seat 108 and the filter purification component 002 upwards, first, There will be relative movement between the filter purification component 002 and the dense outlet cover tube 106 (the filter purification component 002 moves upward and the dense outlet cover tube 106 does not move), so that the exhaust plug 107 will squeeze and push the anesthetic gas inside the tubular filter 203, causing the anesthetic gas inside the tubular filter 203 to be discharged to the outside of the tubular activated carbon plate 204. After the tubular filter 203 and the tubular activated carbon plate 204 completely enter the dense outlet cover tube 106 and the bottom sealing connecting plate 201 abuts against the dense outlet cover tube 106, the dense outlet cover tube 106 will move upward with the filter purification component 002 and the connecting seat 108. During the whole process, the dense outlet cover tube 106, the bottom sealing connecting plate 201 and the connecting seat 108 will successively block the outlet hole 118 to prevent the anesthetic gas from passing through the outlet hole 118. The hole 118 leaks outward, and because the anesthetic gas inside the filter purification component 002 has been discharged and will remain in the purification box 101 before the filter purification component 002 is pushed out of the purification box 101, the anesthetic gas cannot move to the outside of the purification box 101 together with the filter purification component 002. Therefore, through the joint arrangement of the sealing cover tube 106, the exhaust inner plug 107, the filter purification component 002, the out-of-dimension controller 003, etc., when the filter purification component 002 is taken out for maintenance of the filter purification component 002, a large amount of anesthetic gas in the purification box 101 can be effectively avoided from leaking outward, thereby greatly reducing the waste of anesthetic gas, and effectively avoiding the leakage of anesthetic gas to endanger the health of medical staff, which greatly improves the reliability and safety of the purification device.And the dimension controller 003 can control the electric telescopic rod 105 to automatically eject the filter purification component 002 to the outside of the purification box 101, so that the filter purification component 002 can be taken out without disassembling the device or disconnecting the connection between the device and the anesthetic gas delivery pipeline. The operation is simple and efficient, which can improve the maintenance efficiency and the practicality of the purification device. After the maintenance of the filter purification component 002 is completed, the maintained filter purification component 002 is put back to the top of the connecting seat 108, and the sealing cover tube 106 is set on the outside of the filter purification component 002, and then the dimension control button is pressed to issue a retraction command to the ejection control module. After receiving the command, the ejection control module will control The electric telescopic rod 105 pulls the connection seat 108 downward, causing the connection seat 108, the filter purification component 002, the dense cover tube 106, etc. to move downward and reset. In addition, when the electric telescopic rod 105 pulls the connection seat 108 downward, the relevant personnel can manually press the dense cover tube 106 downward to better reset the dense cover tube 106, the filter purification component 002, etc. In addition, it should be noted that the action of removing the dense cover tube 106 and taking away the filter purification component 002 should be fast, and after taking away the filter purification component 002, it is necessary to timely block the lower pipe hole 113 by appropriate methods to prevent the anesthetic gas in the purification box 101 from leaking out through the lower pipe hole 113.

[0023] See also Figure 2 and Figure 6 A valve control module is also provided on the outflow controller 003, an inlet solenoid valve 109 is provided on the air inlet pipe 102, and an outlet solenoid valve 110 is provided on the air outlet pipe 103. The ejection control module is signal-connected with the valve control module, and the valve control module is signal-connected with the inlet solenoid valve 109 and the outlet solenoid valve 110. After receiving the ejection command, the ejection control module sends a signal to the outflow control button to make the outflow control button close the inflow solenoid valve 109 and the outlet solenoid valve 110, and when the ejection control module receives the retraction command, it also sends a signal to the outflow control button to make the outflow control button open the inflow solenoid valve 109 and the outlet solenoid valve 110, so that when the filter purification component 002 is maintained, the delivery of anesthetic gas can be automatically closed.

[0024] See also Figure 1-2 A fall prevention ring 111 is sleeved on the outer wall of the airtight cover tube 106, and a sealing gasket 112 is fixedly connected to the bottom end of the fall prevention ring 111. The bottom end of the sealing gasket 112 abuts against the top of the purification box 101. The fall prevention ring 111 and the sealing gasket 112 can not only prevent the airtight cover tube 106 from falling downward, but also improve the sealing performance of the connection between the airtight cover tube 106 and the purification box 101. A plurality of exhaust holes 114 evenly distributed along a ring shape are provided on the top outer wall of the airtight cover tube 106, which is beneficial to the relative movement between the airtight cover tube 106 and the filter purification component 002, and further beneficial to the discharge of anesthetic gas inside the tubular filter 203.

[0025] The second implementation method: Figure 8-12 The present invention shows an anesthetic gas purification device for clinical use in the anesthesia department. Different from the first embodiment, a self-sealing hole assembly is arranged in the connection seat 108, and the self-sealing hole assembly includes a built-in adjustment groove 401 opened in the connection seat 108 and matched with the lower through-tube hole 113. A sealing hole plug 402 is arranged in the built-in adjustment groove 401 and is slidably sealed and connected thereto. A joint sealing magnet 403 is fixedly connected to the end of the sealing hole plug 402 away from the air inlet pipe 102. A driving sealing electromagnet 404 is fixedly installed in the built-in adjustment groove 401. An elastic pull rope 405 is fixedly connected between the joint sealing magnet 403 and the driving sealing electromagnet 404. The groove 401 is connected with the lower through-tube hole 113, and the end of the sealing plug 402 close to the air inlet pipe 102 is set to a semi-cylindrical shape matching the air inlet pipe 102. The sealing electromagnet 404 is located on the side of the joint sealing magnet 403 away from the sealing plug 402. The self-sealing hole assembly also includes a distance sensor 406 fixedly installed on the inner wall of the bottom end of the purification box 101. A sealing control module is also provided in the filtering and purification assembly 002. The ejection control module is signal-connected with the distance sensor 406 and the sealing control module. The distance sensor 406 is signal-connected with the sealing control module, and the sealing control module is signal-connected with the sealing electromagnet 404.

[0026] A person skilled in the art can set a distance parameter according to the vertical distance between the top of the air inlet pipe 102 and the bottom of the connecting seat 108, and input the distance parameter to the sealing control module. After receiving the ejection command, the ejection control module will first start the distance sensor 406 before starting the electric telescopic rod 105. The distance sensor 406 can measure the distance moved upward by the connecting seat 108, and the distance data measured by the distance sensor 406 will be transmitted to the sealing control module in real time. When the distance moved upward by the connecting seat 108 reaches the preset distance parameter, it means that the air inlet pipe 102 has been separated from the connecting seat 108. At this time, the sealing control module will start the sealing electromagnet 404, so that the sealing electromagnet 404 applies a magnetic repulsion to the joint sealing magnet 403. Under the action of the magnetic repulsion, the sealing plug 402 will move into the inner side of the lower through-tube hole 113, thereby blocking and sealing the lower through-tube hole 113. , to prevent the anesthetic gas from leaking outward through the lower through-tube hole 113. Therefore, through the arrangement of the self-sealing hole component, etc., in the process of ejecting the filter purification component 002 out of the purification box 101, the sealing hole control module will control the self-sealing hole component to automatically block and seal the lower through-tube hole 113, without the need for manual sealing of the lower through-tube hole 113, which can not only further prevent the leakage of anesthetic gas, but also further reduce manual operation, thereby further improving the reliability and practicality of the purification device; after the filter purification component 002 is ejected out of the purification box 101, the ejection control module will turn off the distance sensor 406, and after receiving the retraction instruction, the ejection control module will send a signal to the sealing hole control module, so that the sealing hole control module turns off the sealing electromagnet 404, and then the sealing plug 402 moves and resets under the action of the elastic pull rope 405, thereby preventing the sealing plug 402 from affecting the reset of the connecting seat 108, etc.

[0027] See also Fig. 9 and Fig.11 The bottom end of the bottom sealing connecting plate 201 is fixedly connected with two connecting rods 115, and the connecting seat 108 is provided with two connecting slots 116 matching the connecting rods 115. The two connecting rods 115 are movably connected with the two connecting slots 116 respectively to prevent relative movement between the bottom sealing connecting plate 201 and the connecting seat 108, thereby improving the stability of the device.

[0028] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An anesthetic gas purification device for clinical use in anesthesiology, comprising a purification box (101), the bottom end of the purification box (101) being connected to an air inlet pipe (102), and the side wall of the purification box (101) being connected to an air outlet pipe (103), characterized in that: The bottom end of the purification box (101) is fixedly connected to a support frame (104), an electric telescopic rod (105) is fixedly mounted on the support frame (104), an outlet hole (118) is provided in the middle of the top end of the purification box (101), a close-fitting cover tube (106) slidably and sealingly connected to the outlet hole (118) is provided on the inner side of the outlet hole (118), the close-fitting cover tube (106) passes through the outlet hole (118), and the bottom end of the close-fitting cover tube (106) is arranged in an open shape; A filtering and purifying assembly (002) is arranged below the seal cover tube (106), and the filtering and purifying assembly (002) comprises a bottom sealing connecting plate (201) and a top sealing link (202) that match the seal cover tube (106), the top sealing link (202) being located above the bottom sealing connecting plate (201), a tubular filter screen (203) being fixedly connected between the bottom sealing connecting plate (201) and the top sealing link (202), a tubular activated carbon plate (204) matching the tubular filter screen (203) being sleeved on the outside of the tubular filter screen (203), an exhaust inner plug (107) matching the top sealing link (202) being fixedly installed inside the seal cover tube (106), the seal cover tube (106) and the exhaust inner plug (107) both slidingly sealing with the top sealing link (202). The bottom end of the bottom sealing connecting plate (201) is movably connected to a connecting seat (108) matching therewith, the output end of the electric telescopic rod (105) penetrates the bottom outer wall of the purification box (101) and extends to be fixedly connected to the connecting seat (108), and the output end of the electric telescopic rod (105) and the bottom outer wall of the purification box (101) are slidably and hermetically connected, the middle parts of the bottom sealing connecting plate (201) and the connecting seat (108) are respectively provided with an upper pipe hole (205) and a lower pipe hole (113), the air inlet pipe (102) penetrates the lower pipe hole (113) and the upper pipe hole (205) and extends to the inner side of the tubular filter (203), and the air inlet pipe (102) is slidably and hermetically connected to the lower pipe hole (113) and the upper pipe hole (205); An ejection controller (003) is fixedly mounted on the outer wall of the purification box (101), and an ejection control module and an ejection control button are provided on the ejection controller (003). The ejection control button is connected to the ejection control module by signal, and the ejection control module is connected to the electric telescopic rod (105) by signal.

2. The anesthetic gas purification device for clinical use in anesthesiology according to claim 1, characterized in that: The exhaust inner plug (107) is configured to be cylindrical, the outer diameters of the top sealing link (202) and the tubular activated carbon plate (204) are matched with the inner diameter of the close-out cover tube (106), the inner diameters of the top sealing link (202) and the tubular filter screen (203) are matched with the diameter of the exhaust inner plug (107), the diameters of the bottom sealing connecting plate (201) and the connecting seat (108) are matched with the outer diameter of the close-out cover tube (106), the tubular activated carbon plate (204) is movably connected to the tubular filter screen (203), and the tubular filter screen (203) is detachably fixedly connected to the bottom sealing connecting plate (201) and the top sealing link (202).

3. The anesthetic gas purification device for clinical use in anesthesiology according to claim 1, characterized in that: The ejection controller (003) is also provided with a valve control module, the air inlet pipe (102) is provided with an inlet solenoid valve (109), the air outlet pipe (103) is provided with an outlet solenoid valve (110), the ejection control module is signal-connected to the valve control module, and the valve control module is signal-connected to both the inlet solenoid valve (109) and the outlet solenoid valve (110).

4. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, characterized in that: An anti-falling ring (111) is sleeved on the outer wall of the airtight cover tube (106); a sealing gasket (112) is fixedly connected to the bottom end of the anti-falling ring (111); the bottom end of the sealing gasket (112) abuts against the top end of the purification box (101); and a plurality of exhaust holes (114) evenly distributed along a ring shape are opened on the top outer wall of the airtight cover tube (106).

5. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, characterized in that: A self-sealing hole assembly is arranged in the connection seat (108), and the self-sealing hole assembly comprises a built-in adjustment groove (401) which is opened inside the connection seat (108) and matches the lower through-tube hole (113); a sealing hole plug (402) which is slidably and sealingly connected to the built-in adjustment groove (401) is arranged in the built-in adjustment groove (401); an end of the sealing hole plug (402) which is away from the air intake pipe (102) is fixedly connected to a joint sealing magnet (403); a sealing driving electromagnet (404) is fixedly installed in the built-in adjustment groove (401); and an elastic pull rope (405) is fixedly connected between the joint sealing magnet (403) and the sealing driving electromagnet (404).

6. The anesthetic gas purification device for clinical use in anesthesia department according to claim 5, characterized in that: The built-in adjustment groove (401) is connected to the lower through-tube hole (113); one end of the sealing plug (402) close to the air intake pipe (102) is configured to be a semi-cylindrical shape matching the air intake pipe (102); and the sealing drive electromagnet (404) is located on a side of the joint sealing magnet (403) away from the sealing plug (402).

7. The anesthetic gas purification device for clinical use in anesthesia department according to claim 5, characterized in that: The self-sealing hole component further comprises a distance sensor (406) fixedly mounted on the inner wall of the bottom end of the purification box (101); the filtering and purification component (002) is further provided with a sealing hole control module; the ejection control module is signal-connected to the distance sensor (406) and the sealing hole control module; the distance sensor (406) is signal-connected to the sealing hole control module; and the sealing hole control module is signal-connected to the driving and sealing electromagnet (404).

8. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, characterized in that: Two connecting rods (115) are fixedly connected to the bottom end of the bottom sealing connecting plate (201), and two connecting slots (116) matching the connecting rods (115) are provided on the connecting seat (108), and the two connecting rods (115) are movably connected to the two connecting slots (116) respectively.

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