CN115155167B - Clinical anesthetic gas purification device that uses of department of anesthesia - Google Patents
Clinical anesthetic gas purification device that uses of department of anesthesia Download PDFInfo
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- CN115155167B CN115155167B CN202210782938.8A CN202210782938A CN115155167B CN 115155167 B CN115155167 B CN 115155167B CN 202210782938 A CN202210782938 A CN 202210782938A CN 115155167 B CN115155167 B CN 115155167B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
- A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes specially adapted for anaesthetising
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The invention provides a clinical anesthetic gas purification device for anesthesia department, which aims to solve the problems that the existing tail gas purification device cannot dynamically compensate according to the tail gas discharge amount and each consumable is complicated to install and replace; the front end of the shell is provided with a horizontal operation table, the front side of the shell is provided with a first installation chamber positioned below the operation table, the rear end of the shell is provided with a vertical second installation chamber, the operation table is fixedly connected with a square installation seat, the upper end of the installation seat is provided with an installation hole, and the absorption tank is detachably connected in the installation hole; the absorption tank is internally and coaxially provided with two lantern rings, the inside of the absorption tank is divided into three chambers by the two lantern rings, the chambers are filled with filter media, the upper end and the lower end of the lantern rings are respectively provided with a plurality of connecting pipes, the connecting pipes at the upper end are used for communicating the outer side chamber in the absorption tank with the middle chamber, the connecting pipes at the lower end are used for communicating the outer side chamber in the absorption tank with the inner side chamber, the upper end of the absorption tank is provided with an exhaust port communicated with the inner side chamber, and the lower end of the absorption tank is provided with a vent hole.
Description
Technical Field
The invention relates to the technical field of air purification equipment, in particular to an anesthetic gas purification device for clinical use in anesthesia department.
Background
As gas anesthesia is widely used for various operations as an effective anesthesia means, the problem of treatment of anesthetic waste gas is more and more focused, and a great deal of animal experiments, epidemiological investigation and clinical observation show that the morbidity of abortion, myelosuppression, malignant tumor and the like of operating room staff is higher than that of non-operating room staff; the anesthetic pollution is the pollution of the command primary anesthetic to the air in the operating room, generally in the process of inhaling general anesthesia, an open or semi-open anesthetic method is adopted, anesthetic gas is directly mixed with the indoor air, so that the air in the operating room is polluted, and even if a semi-closed or closed anesthetic machine is selected, the anesthetic gas can be discharged from a mask, an exhaust piston, a threaded pipe and the like, so that the operating environment is polluted. The international method is that a tail gas absorption tank F/AIR filled with active carbon particles is adopted, residual anesthetic gas in the tail gas is absorbed by the active carbon, and then is discharged through a discharge port;
according to the condition of a patient in the operation process, an anesthesiologist adjusts the tidal volume of an anesthesia machine at any time, correspondingly, the exhaust amount of the tail gas also changes at any time, an absorption tank for purifying the tail gas is connected with an exhaust port of the anesthesia machine, the absorption tank receives the tail gas in a negative pressure suction mode, and if the tail gas cannot be led out in time, the respiration of the patient is blocked; if the negative pressure of the outlet of the anesthesia machine is too large, oxygen in the gas storage bag of the anesthesia machine can be sucked away, and the normal operation of the anesthesia machine is affected; in addition, the absorption tank belongs to consumable, and the existing absorption tank is complex to install and inconvenient to replace, so that the working efficiency of medical staff is affected.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a clinical anesthetic gas purification device for anesthesia department, which aims to solve the problems that the existing tail gas purification device cannot dynamically compensate according to the tail gas discharge amount and each consumable is complicated to install and replace.
The technical scheme includes that the device comprises a shell and an absorption tank arranged on the shell, wherein a horizontal operation table is arranged at the front end of the shell, a first installation chamber positioned below the operation table is arranged at the front side of the shell, a vertical second installation chamber is arranged at the rear end of the shell, a square installation seat is fixedly connected to the operation table, the installation seat is drawn upwards to be round, an installation hole penetrating through the operation table is formed in the upper end of the installation seat, and the absorption tank is detachably connected in the installation hole; the inside of the absorption tank is coaxially provided with two lantern rings, the two lantern rings divide the inside of the absorption tank into three chambers, namely an outer chamber, a middle chamber and an inner chamber from outside to inside, filter media are filled in the chambers, the upper end and the lower end of the lantern rings are respectively provided with a plurality of connecting pipes, the connecting pipes at the upper end are used for communicating the outer chamber in the absorption tank with the middle chamber, the connecting pipes at the lower end are used for communicating the outer chamber in the absorption tank with the inner chamber, the upper end of the absorption tank is provided with an exhaust port communicated with the inner chamber, and the lower end of the absorption tank is provided with a vent hole communicated with the middle chamber; an absorption tank connecting seat positioned below the mounting hole is arranged in the first mounting chamber, an exhaust gas collecting pipe penetrating through the front end of the shell is arranged on the absorption tank connecting seat, a placing groove with an upward opening and communicated with the exhaust gas collecting pipe is arranged in the absorption tank connecting seat, the upper end of the placing groove is in interference fit with the air inlet end of the absorption tank, an exhaust fan is arranged at the bottom of the placing groove, the air inlet end of the exhaust fan is communicated with the exhaust gas collecting pipe, the air outlet end of the exhaust fan is communicated with an air vent, two compensation connecting seats are arranged in the second mounting chamber, an extension pipe is respectively clamped on the two compensation connecting seats, a buffer device is connected on one extension pipe in a threaded manner, an air supplementing device is connected on the other extension pipe in a threaded manner, a negative pressure safety valve is arranged in the branch pipe connected with the air supplementing device, the negative pressure safety valve is only conducted when the specified negative pressure value is reached in the exhaust gas collecting pipe, the tail end of the buffer device is sealed and can throughput exhaust gas, and the air supplementing device is communicated with the outside; the inner wall of the second installation chamber is fixedly connected with a vertical sliding rail, the sliding rail is connected with an auxiliary lifting device which acts on the two extension pipes together in a sliding manner, and the auxiliary lifting device can plug or pull the extension pipes out of the compensation connecting seat.
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
1. the novel shell is designed and comprises two mounting chambers, so that the absorber tank connecting seat and the compensation connecting seat are respectively arranged, the arrangement of pipelines is more reasonable and concise, the installation seat is matched with the shell to enable the shell to be attractive in appearance, the threaded four-section slide way is arranged in the mounting hole, the absorber tank is stably fixed on the mounting seat by utilizing the screwing of the lug and the slide way, the effect of convenient disassembly and installation of the absorber tank is realized, the absorber tank is conveniently inserted into the placing groove by the arrangement of the skirt edge, and the interference fit of the skirt edge and the placing groove is combined with the screwing of the lug and the slide way, so that the absorber tank is stably and reliably installed, firmly sealed, and the leakage of anesthetic waste gas is effectively prevented.
2. The three chambers are divided into by the two lantern rings in the absorption tank, and the travel of anesthetic waste gas in the absorption tank is increased by utilizing the three chambers, so that different filter media are reasonably arranged, anesthetic waste gas generated in the anesthetic operation process is thoroughly removed, and serious consequences caused by the fact that medical staff can not repeatedly inhale the waste gas are guaranteed.
3. Through the arrangement of the buffer device and the air supplementing device, the huff and puff of the air bag on the anesthetic waste gas and the matching arrangement of the sleeve and the negative pressure safety valve, the effect of dynamically compensating the negative pressure value in the waste gas collecting pipe is realized, the anesthetic waste gas can be effectively prevented from leaking, and the waste of anesthetic gas is avoided; through auxiliary elevating gear's setting, fixed cover is with two extension pipes lift together, has greatly made things convenient for the plug of two extension pipes and respective compensation connecting seat, and can together rise outside the casing with buffer and air supplement unit, has realized the effect of being convenient for all-round inspection each part, conveniently changes the operation to consumptive materials such as filter core.
Drawings
Fig. 1 is a schematic diagram of a primary view of the present invention.
Fig. 2 is a rear view isometric schematic of the invention.
Fig. 3 is an isometric view of the invention with the canister removed.
FIG. 4 is a schematic view of a cushioning device and an air make-up device of the present invention.
Fig. 5 is a schematic structural view of the auxiliary lifting device of the present invention.
Fig. 6 is a cross-sectional view of the present invention.
Fig. 7 is a cross-sectional view of the present invention.
Fig. 8 is a schematic view of the structure of the canister of the present invention.
Fig. 9 is an internal display view of the installation chamber of the present invention.
Reference numerals in the schematic drawings illustrate:
1. a housing; 2. an absorption tank; 201. a collar; 202. a connecting pipe; 203. an exhaust port; 204. a vent hole; 205. a skirt edge; 3. an operation table; 4. a first installation chamber; 5. a second installation chamber; 6. a mounting base; 7. a mounting hole; 8. an absorption tank connecting seat; 9. an exhaust gas collection pipe; 10. a placement groove; 11. an exhaust fan; 12. compensating a connecting seat; 13. an extension tube; 14. a buffer device; 1401. a connecting ring; 1402. an air bag; 15. an air supplementing device; 1501. a sleeve; 1502. a filter element; 1503. an end cap; 1504. an air inlet; 16. a branch pipe; 17. a negative pressure safety valve; 18. a slide rail; 19. an auxiliary lifting device; 1901. a fixed sleeve; 1902. a slide; 1903. a threaded rod; 1904. an adjusting rod; 1905. a rotating handle; 20. a connection jack; 21. a clamping groove; 22. a sealing retainer ring; 23. a ventilation section; 24. a seal ring; 25. a slideway; 26. a protrusion; 27. an upper cover plate; 28. a via hole; 29. HEPA filter screen; 30. filtering cotton; 31. activated carbon; 32. a pressure gauge.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
The device is shown in fig. 1 to 9, and comprises a shell 1 and an absorption tank 2 arranged on the shell 1, wherein the front end of the shell 1 is provided with a horizontal operation table 3, the front side of the shell 1 is provided with a first installation chamber 4 positioned below the operation table 3, the rear end of the shell 1 is provided with a vertical second installation chamber 5, the first installation chamber 4 is used for arranging pipelines and installing the absorption tank 2, the second installation chamber 5 is used for arranging a buffer device 14 and an auxiliary lifting device 19, the operation table 3 is fixedly connected with a square installation seat 6, the installation seat 6 is upwards drawn into a round shape, so that the device is attractive in appearance, meanwhile, the installation of the absorption tank 2 is more convenient, the upper end of the installation seat 6 is provided with an installation hole 7 penetrating through the operation table 3, and the absorption tank 2 is detachably connected in the installation hole 7; the inside of the absorption tank 2 is coaxially provided with two lantern rings 201, the two lantern rings 201 divide the inside of the absorption tank 2 into three chambers, namely an outer chamber, a middle chamber and an inner chamber (as shown in fig. 8), filter media are filled in the chambers and used for absorbing harmful substances in anesthetic waste gas, a plurality of connecting pipes 202 are respectively arranged at the upper end and the lower end of the lantern rings 201, the connecting pipes 202 at the upper end are used for communicating the outer chamber in the absorption tank 2 with the middle chamber, the connecting pipes 202 at the lower end are used for communicating the outer chamber in the absorption tank 2 with the inner chamber, the upper end of the absorption tank 2 is provided with an exhaust port 203 communicated with the inner chamber, and the lower end of the absorption tank 2 is provided with a vent hole 204 communicated with the middle chamber; an absorbing tank connecting seat 8 positioned below the mounting hole 7 is arranged in the first mounting chamber 4, an exhaust gas collecting pipe 9 penetrating through the front end of the shell 1 is arranged on the absorbing tank connecting seat 8, a placing groove 10 with an upward opening and communicated with the exhaust gas collecting pipe 9 is arranged in the absorbing tank connecting seat 8, the upper end of the placing groove 10 is in interference fit with the air inlet end of the absorbing tank 2, an exhaust fan 11 is arranged at the bottom of the placing groove 10, a turbine type exhaust fan is adopted, the air inlet end of the turbine type exhaust fan is arranged at one side, the air outlet end is arranged at the axis center of the turbine type exhaust fan, the air inlet end of the exhaust fan 11 is communicated with the exhaust gas collecting pipe 9, the air outlet end of the turbine type exhaust fan is communicated with a vent hole 204, the air inlet end of the exhaust fan 11 is in sealing connection with the exhaust gas collecting pipe 9 to prevent exhaust gas leakage, under the working of the exhaust fan 11, anesthetic exhaust gas in the exhaust gas collecting pipe 9 enters the absorbing tank 2 from the vent hole 204 and the middle cavity at first and spreads upwards, the gas flows into the outer cavity through the connecting pipe 202 at the upper end, flows downwards in the outer cavity, then flows into the inner cavity through the vent hole 204 at the lower end and finally is discharged from the exhaust port 203, the second installation chamber 5 is internally provided with two compensation connecting seats 12, the two compensation seats are respectively clamped with an extension pipe 13, one extension pipe 13 is connected with a buffer device 14 in a threaded manner, the other extension pipe 13 is connected with an air supplementing device 15 in a threaded manner, the two compensation connecting seats 12 are respectively provided with a branch pipe 16 which communicates the extension pipe 13 with the exhaust gas collecting pipe 9, the branch pipe 16 connected with the air supplementing device 15 is internally provided with a negative pressure safety valve 17, the negative pressure safety valve 17 is conducted only when a specified negative pressure value is reached in the exhaust gas collecting pipe 9, the gas can be led into the exhaust gas collecting pipe 9 from the branch pipe 16, the tail end of the buffer device 14 is closed and can throughput the exhaust gas, the air supplementing device 15 is communicated with the outside, when the flux of the anesthetic waste gas is increased, the anesthetic waste gas cannot be timely and completely introduced into the absorption tank 2 for absorption, and then flows into the air bag 1402 of the buffer device 14, when the flux of the anesthetic waste gas is weakened, the exhaust fan 11 continuously works and gradually guides the waste gas in the buffer device 14 into the absorption tank 2 for absorption, and when the negative pressure in the waste gas collecting pipe 9 is overlarge, external gas can enter a pipeline through the air supplementing device 15, the buffer device 14 and the air supplementing device 15 jointly act to play a compensation effect, so that the anesthetic waste gas with different fluxes is discharged by the anesthetic machine, the reaction time of autonomous adjustment of the exhaust fan 11 is compensated, the effective respiration of a patient is prevented from being blocked due to the fact that the waste gas cannot be timely discharged when the flux of the waste gas is increased, and the waste gas or oxygen and the anesthetic waste gas are sucked out together due to the overlarge negative pressure in the waste gas collecting pipe 9 after the flux of the waste gas suddenly drops is avoided; the inner wall of the second installation chamber 5 is fixedly connected with a vertical sliding rail 18, the sliding rail 18 is connected with an auxiliary lifting device 19 which acts on the two extension pipes 13 together in a sliding manner, and the auxiliary lifting device 19 can plug or pull the extension pipes 13 out of the compensation connecting seat 12.
Further, the two compensation connecting seats 12 are respectively provided with a connecting jack 20, the connecting jack 20 is communicated with the branch pipe 16, an annular clamping groove 21 is formed in the inner wall of the connecting jack 20, a sealing retainer ring 22 is arranged in the extension pipe 13, a ventilation section 23 is arranged at the lower end of the extension pipe 13, through holes are distributed on the ventilation section 23, a sealing ring 24 which is arranged above the ventilation section 23 and is elastic is arranged on the outer side of the extension pipe 13, the sealing ring 24 is outwards protruded and can be clamped in the clamping groove 21 of the connecting jack 20, after the ventilation section 23 of the extension pipe 13 is completely inserted into the connecting jack 20, the branch pipe 16 is communicated with the extension pipe 13 through the through holes in the ventilation section 23, and the rotation of the extension pipe 13 does not affect the communication with the branch pipe 16, so that the installation is facilitated, and the normal circulation of gas is ensured.
Further, as shown in fig. 7, the buffer device 14 includes a connection ring 1401 and an air bag 1402, the upper end of the connection ring 1401 is in sealing connection with the opening of the air bag 1402, the outer side of the connection ring is in threaded connection with the extension tube 13, the throughput of the anesthetic waste gas is achieved by utilizing the shrinkage of the air bag 1402, and the air bag 1402 is not communicated with the outside, so that the circulation of the anesthetic waste gas is subjected to real-time buffer compensation in the pipeline.
Further, the air supplementing device 15 includes a sleeve 1501 with thick middle and thin two ends, a filter core 1502 is disposed in the sleeve 1501, a desiccant is contained in the filter core 1502, the sleeve 1501 is made of transparent materials, the use condition of the inner filter core 1502 is convenient to observe, the inner filter core is convenient to replace in time, an end cap 1503 is disposed at the upper end of the sleeve 1501, an air inlet 1504 is disposed at the upper end of the end cap 1503, the outer side of the sleeve 1501 is in threaded connection with an extension tube 13, for example, anesthetic waste gas flux in the waste gas collecting tube 9 is reduced, when the exhaust fan 11 continuously works, negative pressure in the waste gas collecting tube 9 is caused to reach a set value, the negative pressure safety valve 17 in the sleeve 1501 is forced to be conducted, external air is sucked in, thereby balancing the negative pressure in the pipeline, and avoiding waste caused by excessive negative pressure in the waste gas collecting tube 9.
Further, as shown in fig. 5, the auxiliary lifting device 19 includes a fixing sleeve 1901, a sliding seat 1902, a threaded rod 1903 and an adjusting rod 1904, two ends of the fixing sleeve 1901 are respectively bent to form a snap ring in the rear direction, two extension pipes 13 are respectively and fixedly connected in the snap rings on corresponding sides, the sliding seat 1902 is fixedly connected at the front end of the fixing sleeve 1901, the threaded rod 1903 is rotatably connected on the inner bottom wall of the second installation chamber 5, the threaded rod 1903 penetrates through the sliding seat 1902 and is in threaded connection with the sliding seat 1902, the upper end of the threaded rod 1903 is in transmission connection with the adjusting rod 1904 through a steering box, the left end of the adjusting rod 1904 penetrates through the casing 1 and is fixedly connected with a rotating handle 1905, the rotating handle 1905 positioned at the outer side of the casing 1 can control the rotation of the threaded rod 1903, so that the sliding seat 1902 slides up and down along the sliding rail 18 to drive the fixing sleeve 1901 to enable the two extension pipes 13 to be inserted into the respective compensation connecting seats 12, synchronous operation is convenient and fast, and the extension pipes 13 separated from the compensation connecting seats 12 can rise along with the fixing sleeve 1902 until the buffer device 14 and the air supplementing device 15 are detected at the outer side of the casing 1502 and the exposed filter core is convenient to replace.
Further, as shown in fig. 3, four screw-shaped slideways 25 are arranged on the inner wall of the mounting hole 7, openings are formed at the upper ends of the slideways 25 through the mounting seat 6, four protruding heads 26 are arranged on the outer side of the absorption tank 2, and the protruding heads 26 can enter the slideways 25 along the openings and can be locked in the slideways 25, so that the absorption tank 2 is convenient to assemble, convenient and fast to use, and firm to install.
Further, an upper cover plate 27 for blocking the second installation chamber 5 is hinged to the upper end of the casing 1, a through hole 28 corresponding to the air inlet 1504 is formed in the upper cover plate 27, and a dust screen is arranged in the through hole 28 to prevent sundries from being sucked into the air supplementing device 15.
Further, in three cavities of the absorption tank 2, HEPA filter screens 29 are filled in the outer cavity, filter cotton 30 is filled in the middle cavity, active carbon 31 is filled in the inner cavity, and three filter media are reasonably arranged, so that harmful substances in anesthetic waste gas are effectively removed.
Further, the lower extreme of the absorption tank 2 is provided with a downward protruding skirt 205, the outside of the skirt 205 is provided with a sealing gasket, the skirt 205 and the edge of the placing groove 10 are in interference fit together through the sealing gasket, so that the air tightness is ensured, the anesthetic waste gas is prevented from leaking into the outside, the air pollution is avoided, and the health of medical staff is protected.
Further, a pressure gauge 32 is arranged on the operation table 3, an air pipe of the pressure gauge 32 is communicated with the exhaust gas collecting pipe 9, a pressure sensor is arranged in the exhaust gas collecting pipe 9 and is electrically connected with a control system on the operation table 3 and used for feeding back the pressure in the pipeline, so that the control system can adjust the real-time power of the exhaust fan 11.
Further, the rear end of the housing 1 is provided with a rear cover plate below the second installation chamber 5, and the compensation connecting seat 12 can be exposed out after the rear cover plate is opened, so that the observation and the detection are facilitated.
The pipes mentioned in the present invention refer to the exhaust gas collection pipe 9 and the bypass pipe 16.
It should be emphasized that the control system is provided on the console 3 for controlling the real-time power of the exhaust fan 11, which belongs to the prior art; the design of the buffer device 14 and the air supplementing device 15 can provide more reaction time for the power regulation and control of the exhaust fan 11, and the buffer device and the air supplementing device are cooperatively used to solve the dynamic change of the waste gas flux of the anesthesia machine, and avoid the condition of waste gas leakage or the waste of anesthetic gas and oxygen caused by untimely regulation and control reaction of the exhaust fan 11.
When the absorbing tank is used, firstly, the absorbing tank 2 is inserted into the first mounting chamber 4 along the mounting hole 7, four lugs 26 on the outer side of the absorbing tank 2 respectively enter different sliding directions along openings at the upper end of the slideway 25, the absorbing tank 2 is rotated to slide along the slideway 25 and move downwards until the lugs 26 are locked at the bottom of the sliding direction, a skirt 205 on the lower end of the absorbing tank 2 is inserted into the placing groove 10, the outer side of the skirt 205 is in interference fit with the placing groove 10 through a sealing gasket, the tightness of an interface is ensured, waste gas leakage is prevented, and at the moment, a vent hole 204 on the lower end of the absorbing tank 2 corresponds to the air outlet end of the exhaust fan 11; opening the upper cover plate 27, rotating the rotating handle 1905 to enable the adjusting rod 1904 to rotate, driving the threaded rod 1903 to rotate through transmission of a bevel gear in the steering box, so that the sliding seat 1902 moves upwards, the fixing sleeve 1901 drives the two extension pipes 13 to slide upwards together with the sliding seat 1902, the buffer device 14 and the air supplementing device 15 are ejected upwards, whether the air bag 1402 is damaged or not is checked from the top of the shell 1, the sealing performance of the connecting ring 1401 is good, whether the sleeve 1501 is firmly installed or not is checked, whether the end cap 1503 is intact or not is facilitated, the auxiliary lifting device 19 is utilized to perform omnibearing checking or replacement installation on each part of the buffer device 14 and the air supplementing device 15, after the checking is finished, the rotating handle 1905 is rotated again to enable the two extension pipes 13 to move downwards until the ventilation section 23 of the extension pipe 13 is abutted to the bottom of the connecting jack 20, the rotating handle 1905 is stopped, the sealing ring 24 completely enters the clamping groove 21 at the moment, the extension pipe 13 and the respective compensating connecting seat 12 are sealed and fixed together, the branch pipe 16 is communicated with the inside of the extension pipe 13 through the section 23 on the extension pipe 13, and the ventilation cover plate 27 is closed;
then, the exhaust gas collecting pipe 9 is connected with an exhaust pipe on the anesthesia machine through an L-shaped bent pipe, when the anesthesia machine works, an anesthesiologist adjusts the inflow amount of anesthetic gas in the anesthesia machine in real time to ensure that the patient inhales the anesthetic gas with a specified amount according to the current condition of the patient, accordingly, the discharge amount of the anesthetic gas also changes in real time, when the discharge amount of the anesthetic gas suddenly increases, a control system receives a signal value of a pressure sensor, adjusts the working power of the exhaust fan 11, and meanwhile, the suddenly increased anesthetic gas can enter the buffer device 14 through the branch pipe 16, the anesthetic gas is temporarily collected by the air bag 1402, so that the anesthetic gas is prevented from overflowing, the air pressure in the exhaust gas collecting pipe 9 is reduced, the anesthetic gas in the buffer device 14 flows back, and is pumped into the absorption tank 2 by the exhaust fan 11; when the discharge amount of the anesthetic waste gas is suddenly reduced, the control system reduces the working power of the exhaust fan 11, when the negative pressure value in the pipeline reaches the set value of the negative pressure safety valve 17, the air supplementing device 15 is communicated with the waste gas collecting pipe 9, external gas is absorbed into the waste gas collecting pipe 9 to neutralize the pressure in the waste gas collecting pipe 9, the excessive negative pressure in the waste gas collecting pipe 9 is prevented from extracting the unused atomized anesthetic gas or oxygen in the anesthetic machine, and when the power of the exhaust fan 11 is reduced, the negative pressure value in the waste gas collecting pipe 9 is reduced to be below the set value of the negative pressure safety valve 17, the negative pressure safety valve 17 is closed, so that the buffer device 14 and the air supplementing device 15 are utilized to play a role in compensation, and the air pressure value of the waste gas collecting pipe 9 is balanced, so that the treatment of the anesthetic waste gas is more stable;
after being conveyed into the absorption tank 2 by the exhaust fan 11, the anesthetic waste gas sequentially passes through three chambers in the absorption tank 2, is sequentially filtered and adsorbed by the filter cotton 30, the HEPA filter screen 29 and the activated carbon 31, so that harmful substances in the anesthetic waste gas are absorbed and treated, and then is discharged through the exhaust port 203.
The novel shell is designed and comprises two mounting chambers, so that the absorber tank connecting seat and the compensation connecting seat are respectively arranged, the arrangement of pipelines is more reasonable and concise, the installation of the absorber tank is stable and reliable by arranging the mounting seats, matching the shell with the shell, arranging four screw-thread-shaped slide ways in the mounting holes, and stably fixing the absorber tank on the mounting seats by screwing the lugs and the slide ways, thereby realizing the effect of convenient disassembly and installation of the absorber tank, facilitating the insertion of the absorber tank into the placing groove by arranging the skirt, and combining the interference fit of the skirt and the placing groove with the screwing of the lugs and the slide ways, so that the installation of the absorber tank is stable and reliable, and the sealing is firm, and the leakage of anesthetic waste gas is effectively prevented; the inside of the absorption tank is divided into three chambers by two lantern rings, and the travel of anesthetic waste gas in the absorption tank is increased by utilizing the three chambers, so that different filter media are conveniently and reasonably arranged, anesthetic waste gas generated in the anesthetic operation process is thoroughly removed, and serious consequences caused by repeated inhalation of the waste gas by medical staff are avoided; through the arrangement of the buffer device and the air supplementing device, the huff and puff of the air bag on the anesthetic waste gas and the matching arrangement of the sleeve and the negative pressure safety valve, the effect of dynamically compensating the negative pressure value in the waste gas collecting pipe is realized, the anesthetic waste gas can be effectively prevented from leaking, and the waste of anesthetic gas is avoided; through auxiliary elevating gear's setting, fixed cover is with two extension pipes lift together, has greatly made things convenient for the plug of two extension pipes and respective compensation connecting seat, and can together rise outside the casing with buffer and air supplement unit, has realized the effect of being convenient for all-round inspection each part, conveniently changes the operation to consumptive materials such as filter core.
Claims (9)
1. The utility model provides a clinical anesthetic gas purification device that uses of department of anesthesia, includes casing (1) and installs retort (2) on casing (1), its characterized in that, casing (1) front end is equipped with horizontal operation panel (3), and casing (1) front side is equipped with first installation room (4) that are located this operation panel (3) below, and casing (1) rear end is equipped with vertical second installation room (5), fixedly connected with square mount pad (6) on operation panel (3), and mount pad (6) are drawn up into circular, and mounting hole (7) that run through operation panel (3) are seted up to mount pad (6) upper end, and retort (2) dismantlement connection is in mounting hole (7); two lantern rings (201) are coaxially arranged in the absorption tank (2), the two lantern rings (201) divide the inside of the absorption tank (2) into three chambers, an outer chamber, a middle chamber and an inner chamber are respectively arranged from outside to inside, filter media are filled in the chambers, a plurality of connecting pipes (202) are respectively arranged at the upper end and the lower end of the lantern rings (201), the connecting pipes (202) at the upper end are used for communicating the outer chamber in the absorption tank (2) with the middle chamber, the connecting pipes (202) at the lower end are used for communicating the outer chamber in the absorption tank (2) with the inner chamber, an exhaust port (203) communicated with the inner chamber is formed at the upper end of the absorption tank (2), and a vent hole (204) communicated with the middle chamber of the absorption tank (2) is formed at the lower end of the absorption tank (2); an absorption tank connecting seat (8) positioned below the mounting hole (7) is arranged in the first mounting chamber (4), an exhaust gas collecting pipe (9) penetrating through the front end of the shell (1) is arranged on the absorption tank connecting seat (8), a placing groove (10) with an upward opening and communicated with the exhaust gas collecting pipe (9) is formed in the absorption tank connecting seat (8), the upper end of the placing groove (10) is in interference fit with the air inlet end of the absorption tank (2), an exhaust fan (11) is arranged at the bottom of the placing groove (10), the air inlet end of the exhaust fan (11) is communicated with the exhaust gas collecting pipe (9), the air outlet end is communicated with a vent hole (204), two compensation connecting seats (12) are arranged in the second mounting chamber (5), extension pipes (13) are respectively clamped on the two compensation connecting seats, a buffer seat (14) is connected on one extension pipe (13) in a threaded manner, a supplementing seat (15) is connected on the other extension pipe (13), branch pipes (16) which are communicated with the exhaust gas collecting pipe (9) respectively, and the branch pipes (16) are communicated with the exhaust gas collecting pipe (9) respectively, and the negative pressure supplementing seat (15) can be communicated with the outside through the negative pressure device (17); a vertical sliding rail (18) is fixedly connected to the inner wall of the second installation chamber (5), an auxiliary lifting device (19) which acts on the two extension pipes (13) together is connected to the sliding rail (18) in a sliding manner, and the auxiliary lifting device (19) can plug or pull the extension pipes (13) out of the compensation connecting seat (12);
be equipped with manometer (32) on operation panel (3), the trachea and the waste gas collecting pipe (9) intercommunication of manometer (32), be equipped with pressure sensor in waste gas collecting pipe (9), pressure sensor is connected with the control system electricity on operation panel (3) for the pressure size in the feedback pipeline makes the real-time power of control system adjustment air exhauster (11).
2. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, wherein two compensation connecting seats (12) are respectively provided with a connecting jack (20), the connecting jack (20) is communicated with a branch pipe (16), an annular clamping groove (21) is formed in the inner wall of the connecting jack (20), a sealing retainer ring (22) is arranged in the extension pipe (13), a ventilation section (23) is arranged at the lower end of the extension pipe (13), through holes are distributed on the ventilation section (23), a sealing ring (24) which is arranged above the ventilation section (23) and has elasticity is arranged on the outer side of the extension pipe (13), and the sealing ring (24) protrudes outwards and can be clamped in the clamping groove (21) of the connecting jack (20).
3. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, wherein the buffer device (14) comprises a connecting ring (1401) and an air bag (1402), the upper end of the connecting ring (1401) is in sealing connection with the opening of the air bag (1402), and the outer side of the connecting ring is in threaded connection with the extension tube (13).
4. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, wherein the gas supplementing device (15) comprises a sleeve (1501) with thick middle and thin two ends, a filter element (1502) is arranged in the sleeve (1501), the filter element (1502) contains a drying agent, an end cap (1503) is arranged at the upper end of the sleeve (1501), an air inlet (1504) is arranged at the upper end of the end cap (1503), and the outer side of the sleeve (1501) is in threaded connection with the extension tube (13).
5. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, wherein the auxiliary lifting device (19) comprises a fixing sleeve (1901), a sliding seat (1902), a threaded rod (1903) and an adjusting rod (1904), two ends of the fixing sleeve (1901) are respectively bent to form clamping rings in the rear direction, two extension pipes (13) are respectively fixedly connected in the clamping rings on the corresponding sides, the sliding seat (1902) is fixedly connected at the front end of the fixing sleeve (1901), the threaded rod (1903) is rotatably connected to the inner bottom wall of the second installation chamber (5), the threaded rod (1903) penetrates through the sliding seat (1902) and is in threaded connection with the sliding seat (1902), the upper end of the threaded rod (1903) is in transmission connection with the adjusting rod (1904) through a steering box, and the left end of the adjusting rod (1904) penetrates through the casing (1) and is fixedly connected with a rotating handle (1905).
6. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, wherein four screw-shaped slide ways (25) are arranged on the inner wall of the mounting hole (7), the upper ends of the slide ways (25) penetrate through the mounting seat (6) to form openings, four protruding heads (26) are arranged on the outer side of the absorption tank (2), and the protruding heads (26) can enter the slide ways (25) along the openings and can be locked in the slide ways (25).
7. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, wherein an upper cover plate (27) for blocking the second installation chamber (5) is hinged to the upper end of the housing (1), a through hole (28) corresponding to the air inlet (1504) is formed in the upper cover plate (27), and a dust screen is arranged in the through hole (28).
8. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, wherein, among the three chambers of the absorption tank (2), a HEPA filter screen (29) is filled in an outer chamber, a filter cotton (30) is filled in an intermediate chamber, and an activated carbon (31) is filled in an inner chamber.
9. The anesthetic gas purification device for clinical use in anesthesia department according to claim 1, wherein a skirt (205) protruding downwards is provided at a lower end of the absorption tank (2), and a gasket is provided at an outer side of the skirt (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210782938.8A CN115155167B (en) | 2022-07-05 | 2022-07-05 | Clinical anesthetic gas purification device that uses of department of anesthesia |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210782938.8A CN115155167B (en) | 2022-07-05 | 2022-07-05 | Clinical anesthetic gas purification device that uses of department of anesthesia |
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| CN115155167A CN115155167A (en) | 2022-10-11 |
| CN115155167B true CN115155167B (en) | 2024-02-09 |
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| US20190046749A1 (en) * | 2016-03-09 | 2019-02-14 | Airway Medix S.A. | Catheter inflatable cuff pressure stabilizer |
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| CN2820209Y (en) * | 2005-08-29 | 2006-09-27 | 孙岩军 | Waste gas eliminating system for valve control type anesthesiapparatusal respirator |
| CN2820210Y (en) * | 2005-08-29 | 2006-09-27 | 孙岩军 | Waste gas eliminating system for volume buffer type anaesthesia apparatus respirator |
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| CN115155167A (en) | 2022-10-11 |
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