CN120346409A - Waste gas filtering device for anesthesia - Google Patents

Waste gas filtering device for anesthesia

Info

Publication number
CN120346409A
CN120346409A CN202510833814.1A CN202510833814A CN120346409A CN 120346409 A CN120346409 A CN 120346409A CN 202510833814 A CN202510833814 A CN 202510833814A CN 120346409 A CN120346409 A CN 120346409A
Authority
CN
China
Prior art keywords
hood
sealing plate
external oxygen
internal
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202510833814.1A
Other languages
Chinese (zh)
Other versions
CN120346409B (en
Inventor
刘希江
任鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Provincial Hospital
Original Assignee
Shandong Provincial Hospital
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Provincial Hospital filed Critical Shandong Provincial Hospital
Priority to CN202510833814.1A priority Critical patent/CN120346409B/en
Publication of CN120346409A publication Critical patent/CN120346409A/en
Application granted granted Critical
Publication of CN120346409B publication Critical patent/CN120346409B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • A61M16/0087—Environmental safety or protection means, e.g. preventing explosion
    • A61M16/009—Removing used or expired gases or anaesthetic vapours
    • A61M16/0093—Removing used or expired gases or anaesthetic vapours by adsorption, absorption or filtration
    • 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
    • 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
    • A61M16/06—Respiratory or anaesthetic masks
    • 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
    • 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
    • B01D53/22—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 diffusion
    • B01D53/228—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 diffusion characterised by specific membranes

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Public Health (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The invention discloses an exhaust gas filtering device for anesthesia, which relates to the technical field of anti-overflow of anesthetic gas and comprises an internal oxygen hood, wherein an external oxygen hood is arranged outside the internal oxygen hood, a plurality of vent holes are formed in the side face of the internal oxygen hood, a plurality of mounting grooves which are in contact with the vent holes are formed in the inner side of the external oxygen hood, an anesthetic gas filter is arranged in the mounting grooves, and a sealing element is arranged in the external oxygen hood. According to the invention, the plurality of mounting grooves are formed in the external oxygen cover, the anesthetic gas filter is arranged in the mounting grooves, when the external oxygen cover is taken down, negative pressure is generated in the space formed by the sealing plate and the external oxygen cover, the negative pressure sucks the air containing anesthetic gas in the internal oxygen cover into the space formed by the sealing plate and the external oxygen cover, and the air passes through the mounting grooves, so that the anesthetic in the air is filtered by the anesthetic gas filter, and the content of the anesthetic gas contained in the internal oxygen cover is reduced after the internal oxygen cover is taken down and is scattered to the outside.

Description

Waste gas filtering device for anesthesia
Technical Field
The invention relates to the technical field of anti-overflow of anesthetic gas, in particular to an exhaust gas filtering device for anesthesia.
Background
Along with the gradual increase of the application of inhalation anesthetics in an operating room, the anesthetic gases or vapors dispersed in the operating room in the operating process can cause air pollution of the operating room environment, and the long-term exposure to the polluted environment of the trace anesthetic gases can bring adverse effects to the physical and mental health of operating room staff, especially female staff in pregnancy and lactation, have the risks of spontaneous abortion, fetal distortion and reduced fertility, the anesthetic gas pollution and the harm of the operating room have been widely paid attention to, the anesthetic gas pollution of the operating room is reduced, and the health protection of the staff is enhanced as an important aspect of the environmental protection of the operating room.
In the prior art, the oxygen cover needs to be removed after the operation of the patient is finished, and when the oxygen cover is removed due to the fact that part of anesthetic gas remains in the oxygen cover, the anesthetic gas remaining in the oxygen cover can float into the air, so that medical staff can inhale the anesthetic gas.
Disclosure of Invention
The present invention is directed to an exhaust gas filtering device for anesthesia, which solves the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides an exhaust gas filtering device for anesthesia, includes the inside oxygen cover, the outside oxygen cover is provided with outside oxygen cover, outside oxygen cover is laminated with inside oxygen cover, a plurality of air vents have been seted up to inside oxygen cover side, install first check valve in the air vent, a plurality of mounting grooves that contact with the air vent have been seted up to outside oxygen cover inboard, install anesthetic gas filter in the mounting groove, install the sealing member in the outside oxygen cover, the mounting is installed at the top in the inside oxygen cover, the mounting is connected with the sealing member.
Further, the sealing member includes the closing plate, closing plate sliding connection is in outside oxygen gas cover, and closing plate and mounting groove sliding contact, the mounting is installed in the one side of sealing plate face towards inside oxygen gas cover, install the connecting piece on the one side of sealing plate face towards outside oxygen gas cover, the one end that the closing plate was kept away from to the connecting piece is connected with outside oxygen gas cover.
Further, the connecting piece includes the connecting rod, the connecting rod is installed in the one side that the inside oxygen gas cover was kept away from to the closing plate, the connecting cylinder has been cup jointed to the one end that the closing plate was kept away from to the connecting rod, the one end that the connecting cylinder was kept away from to the connecting rod is installed in outside oxygen gas cover, the connecting rod is installed limited piece in the one end in the connecting cylinder, limit piece sliding connection is in the storage section of thick bamboo.
Further, the mounting includes the round bar, the round bar is installed in one side of sealing plate face towards inside oxygen gas cover, the round hole has been seted up in the inside oxygen gas cover, the round bar is pegged graft in the round hole, the restriction groove has been seted up to the one end of round bar inside oxygen gas cover, set up in the inside oxygen gas cover and set up the rotation groove, the rotation inslot internal rotation is connected with L type pole, L type pole joint is in the restriction groove.
Further, the sealing plate annular surface is provided with a sealing gasket, and one side of the sealing gasket away from the sealing plate is contacted with the internal oxygen cover.
Further, an annular groove is formed in the inner edge of the external oxygen cover, a through hole communicated with the annular groove is formed in the outer side of the external oxygen cover, a storage cylinder is installed in the through hole, a second one-way valve is installed in the storage cylinder, and a negative pressure piece is installed on one side, far away from the second one-way valve, of the storage cylinder.
Further, the negative pressure piece includes the screw rod, the screw hole has been seted up to one side that the second check valve was kept away from to the storage section of thick bamboo, threaded hole internal thread connection has the screw rod, the piston is installed to the one end of screw rod in the storage section of thick bamboo, piston sliding connection is in the storage section of thick bamboo.
Further, the connecting pipe is arranged on the outer surface of the external oxygen cover, a third one-way valve is arranged in the connecting pipe, and a storage bottle is arranged at one end, far away from the external oxygen cover, of the connecting pipe.
Further, the end parts of the inner oxygen cover and the outer oxygen cover are respectively provided with a protection pad.
Further, a vertical groove is formed in the side face of the external oxygen cover, an air inlet pipe extending into the internal oxygen cover is inserted into the vertical groove, and an exhaust pipe is arranged in the air inlet pipe.
The exhaust gas filtering device for anesthesia provided by the invention has the following beneficial effects:
1. According to the invention, the plurality of mounting grooves are formed in the external oxygen cover, the anesthetic gas filter is arranged in the mounting grooves, when the external oxygen cover is taken down, negative pressure is generated in the space formed by the sealing plate and the external oxygen cover, the negative pressure sucks the air containing anesthetic gas in the internal oxygen cover into the space formed by the sealing plate and the external oxygen cover, and the air passes through the mounting grooves, so that the anesthetic in the air is filtered by the anesthetic gas filter, and the content of the anesthetic gas contained in the internal oxygen cover is reduced after the internal oxygen cover is taken down and is scattered to the outside.
2. According to the invention, the sealing structure consisting of the sealing plate, the connecting rod, the connecting cylinder and the limiting block is arranged in the external oxygen cover, the sealing structure is used for sealing the external oxygen cover, so that the overflow of gas entering the space formed by the sealing plate and the external oxygen cover is avoided, the gas containing anesthetic gas entering the space formed by the sealing plate and the external oxygen cover is stored by the connecting pipe, the third one-way valve and the storage bottle which are arranged outside, and the size of the space formed by the sealing plate and the external oxygen cover is changed by repeatedly moving the external oxygen cover back and forth, so that the air entering the sealing plate and the external oxygen cover is increased, the total amount of the replaced gas in the internal oxygen cover is increased, and the content of the anesthetic gas remaining in the internal oxygen cover is reduced.
3. According to the invention, the annular groove is formed in the inner edge of the external oxygen cover, the annular groove is communicated with the storage cylinder, the negative pressure structure consisting of the screw rod and the piston is arranged in the storage cylinder, and the negative pressure structure is utilized to absorb the air containing the anesthetic gas overflowed from the internal oxygen cover, so that the air overflow probability of the anesthetic gas is reduced.
Drawings
FIG. 1 is a schematic diagram of an exhaust gas filtering device for anesthesia according to the present invention;
FIG. 2 is a schematic diagram showing the assembly of a connecting rod, a connecting cylinder and a sealing plate of an exhaust gas filtering device for anesthesia according to the present invention;
FIG. 3 is a schematic diagram showing the assembly of the connecting rod, the limiting block and the connecting cylinder of the exhaust gas filtering device for anesthesia of the present invention;
FIG. 4is a schematic view showing the structure of an internal oxygen mask of an exhaust gas filtering device for anesthesia according to the present invention;
FIG. 5 is a schematic diagram showing an assembly structure of a screw, a piston and a storage cylinder of an exhaust gas filtering device for anesthesia according to the present invention;
FIG. 6 is a schematic diagram showing the assembly of a connecting tube, a third check valve and a storage bottle of an exhaust gas filtering apparatus for anesthesia according to the present invention;
Fig. 7 is an assembled schematic view of an internal oxygen mask and an external oxygen mask of an exhaust gas filtering device for anesthesia according to the present invention.
1, An internal oxygen cover, 2, an annular groove, 3, an exhaust pipe, 4, an air inlet pipe, 5, a first one-way valve, 6, a screw, 7, a storage cylinder, 8, a storage bottle, 9, a connecting pipe, 10, an external oxygen cover, 11, a protection pad, 12, a round rod, 13, an L-shaped rod, 14, a sealing plate, 15, a limiting groove, 16, a connecting rod, 17, a connecting cylinder, 18, a limiting block, 19, a sealing pad, 20, a vertical groove, 21, an anesthetic gas filter, 22, a mounting groove, 23, a piston, 24, a second one-way valve, 25 and a third one-way valve.
Detailed Description
Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terms used herein are for the purpose of describing particular embodiments only and are not intended to be limiting of the application, and the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the above description of the drawings are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "fixed" and the like are to be construed broadly and include, for example, fixed connection, detachable connection, or integral therewith, mechanical connection, electrical connection, direct connection, indirect connection via an intermediary, communication between two elements, or interaction between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.
Referring to fig. 1 to 7, the exhaust gas filtering device for anesthesia provided by the present invention includes an internal oxygen mask 1, an external oxygen mask 10 is disposed outside the internal oxygen mask 1, the external oxygen mask 10 is attached to the internal oxygen mask 1, a plurality of ventilation holes are formed on the side surface of the internal oxygen mask 1, a first one-way valve 5 is installed in the ventilation holes, the first one-way valve 5 only allows air in the internal oxygen mask 1 to enter into a mounting groove 22, a plurality of mounting grooves 22 contacting with the ventilation holes are formed on the inner side of the external oxygen mask 10, an anesthetic gas filter 21 is installed in the mounting groove 22, and the anesthetic gas filter 21 is composed of a filter membrane and a columnar granular activated carbon adsorbent.
By providing a plurality of installation grooves 22 in the external oxygen mask 10 and installing the anesthetic gas filter 21 in the installation grooves 22, when the external oxygen mask 10 is removed, negative pressure is generated in the space formed by the sealing plate 14 and the external oxygen mask 10, the negative pressure sucks the air containing anesthetic gas in the internal oxygen mask 1 into the space formed by the sealing plate 14 and the external oxygen mask 10, and the air needs to pass through the installation grooves 22, so that the anesthetic in the air is filtered by the anesthetic gas filter 21, and the content of the anesthetic gas contained in the internal oxygen mask 1 is reduced to drift outside after the internal oxygen mask 1 is removed.
The connecting rod 16 is installed on the face of the sealing plate 14 facing to the external oxygen cover 10, one end of the connecting rod 16, far away from the sealing plate 14, is sleeved with the connecting cylinder 17, one end of the connecting cylinder 17, far away from the connecting rod 16, is installed in the external oxygen cover 10, one end of the connecting rod 16 in the connecting cylinder 17 is provided with the limiting block 18, the limiting block 18 is slidably connected in the storage cylinder 7, the connecting rod 16 is connected with the connecting cylinder 17 through the limiting block 18, and the sealing plate 14 and the external oxygen cover 10 are prevented from being separated due to the fact that the connecting rod 16 is separated from the connecting cylinder 17.
The outer surface of the external oxygen cover 10 is provided with a connecting pipe 9, a third one-way valve 25 is arranged in the connecting pipe 9, one end of the connecting pipe 9, which is far away from the external oxygen cover 10, is provided with a storage bottle 8, and the third one-way valve 25 only allows air in the external oxygen cover 10 to enter the storage bottle 8.
A round rod 12 is arranged on one side of a sealing plate 14 facing to an internal oxygen cover 1, a round hole is formed in the internal oxygen cover 1, the round rod 12 is inserted into the round hole, a limiting groove 15 is formed in one end of the internal oxygen cover 1, a rotating groove is formed in the internal oxygen cover 1, an L-shaped rod 13 is connected in the rotating groove in a rotating mode, the L-shaped rod 13 is clamped in the limiting groove 15, the position of the round rod 12 is limited by the L-shaped rod 13, the sealing plate 14 is further connected with the internal oxygen cover 1, when the external oxygen cover 10 moves, the sealing plate 14 does not move along with the external oxygen cover 10, the space formed by the sealing plate 14 and the external oxygen cover 10 is increased, and meanwhile, air containing anesthetic gas in the internal oxygen cover 1 is absorbed.
The sealing structure comprising the sealing plate 14, the connecting rod 16, the connecting tube 17 and the limiting block 18 is installed in the external oxygen cover 10, the external oxygen cover 10 is sealed by the sealing structure, and further, the gas entering the space formed by the sealing plate 14 and the external oxygen cover 10 is prevented from overflowing, and then, the gas containing anesthetic gas entering the space formed by the sealing plate 14 and the external oxygen cover 10 is stored by the storage bottle 8 through the connecting tube 9, the third one-way valve 25 and the storage bottle 8 which are installed outside.
In actual use, the contact area between the external oxygen mask 10 and the internal oxygen mask 1 can be changed by moving the external oxygen mask 10 back and forth a plurality of times, so that the size of the space formed by the sealing plate 14 and the external oxygen mask 10 can be changed, the air entering the sealing plate 14 and the external oxygen mask 10 can be increased, the total amount of the gas replaced in the internal oxygen mask 1 can be increased, and the content of the anesthetic gas remaining in the internal oxygen mask 1 can be reduced.
In some embodiments, the annular surface of the sealing plate 14 is provided with a gasket 19, one side of the gasket 19 away from the sealing plate 14 is in contact with the internal oxygen cover 1, and the gasket 19 is used for ensuring that the sealing plate 14 is in contact with the internal oxygen cover 1, so that air entering the internal oxygen cover 1 is prevented from overflowing from the edges of the sealing plate 14 and the internal oxygen cover 1 again.
An annular groove 2 is formed in the inner edge of the external oxygen cover 10, a through hole communicated with the annular groove 2 is formed in the outer side of the external oxygen cover 10, a storage cylinder 7 is installed in the through hole, a second one-way valve 24 is installed in the storage cylinder 7, a threaded hole is formed in one side, far away from the second one-way valve 24, of the storage cylinder 7, a screw rod 6 is connected in a threaded mode, a piston 23 is installed at one end of the screw rod 6 in the storage cylinder 7, and the piston 23 is connected in the storage cylinder 7 in a sliding mode.
The annular groove 2 is formed in the inner edge of the external oxygen cover 10, the annular groove 2 is communicated with the storage barrel 7, a negative pressure structure consisting of the screw rod 6 and the piston 23 is arranged in the storage barrel 7, and the negative pressure structure is utilized to absorb the air containing the anesthetic gas overflowed from the internal oxygen cover 1, so that the air overflow probability of the anesthetic gas is reduced.
The protection pad 11 is installed at the end parts of the internal oxygen hood 1 and the external oxygen hood 10, the face of a patient is protected by the protection pad 11, and meanwhile, the contact positions of the internal oxygen hood 1 and the external oxygen hood 10 with the face are sealed by the protection pad 11, so that the gas overflow probability of anesthetic gas contained in the internal oxygen hood 1 is reduced.
The vertical groove 20 is formed in the side face of the external oxygen cover 10, the air inlet pipe 4 extending into the internal oxygen cover 1 is inserted into the vertical groove 20, the air outlet pipe 3 is arranged in the air inlet pipe 4, and the air inlet pipe 4 is arranged in the vertical groove 20, so that the situation that the external oxygen cover 10 cannot move due to contact with the air outlet pipe 3 when moving is avoided.
When the exhaust gas filtering device for anesthesia is used, a pipeline for conveying anesthetic gas is closed firstly, then a binding belt on the internal oxygen hood 1 is pulled to prevent the internal oxygen hood 1 from being separated from the face of a patient, then the external oxygen hood 10 is moved to change the contact position of the external oxygen hood 10 and the internal oxygen hood 1, when the external oxygen hood 10 is just moved, the mounting groove 22 is not moved into the space formed by the sealing plate 14 and the external oxygen hood 10, at the moment, negative pressure is generated in the space formed by the sealing plate 14 and the external oxygen hood 10 because no air enters the space formed by the sealing plate 14 and the external oxygen hood 10, and the space formed by the sealing plate 14 and the external oxygen hood 10 is contacted with the mounting groove 22 along with the movement of the external oxygen hood 10, at the moment, the space in the internal oxygen hood 1 is communicated with the space formed by the sealing plate 14 and the external oxygen hood 10, then the temporarily stored air containing anesthetic gas in the internal oxygen hood 1 passes through the mounting groove 22 and then enters the space formed by the sealing plate 14 and the external oxygen hood 10, and the content of the anesthetic gas contained in the internal oxygen hood 1 is further reduced after the internal oxygen hood 1 is removed;
When the air containing the anesthetic gas passes through the mounting groove 22, the air is filtered by the anesthetic gas filter 21 mounted in the mounting groove 22 and moves along with the external oxygen cover 10 to be continuously contacted with different positions of the anesthetic gas filter 21, so that the filtering effect of the anesthetic gas filter 21 on the anesthetic gas is ensured, and the filtered gas enters a space formed by the sealing plate 14 and the external oxygen cover 10 for temporary storage;
When the external oxygen cover 10 is re-attached to the internal oxygen cover 1, the gas in the space formed by the sealing plate 14 and the external oxygen cover 10 is extruded into the storage bottle 8, and the gas containing anesthetic gas in the space formed by the sealing plate 14 and the external oxygen cover 10 is stored by the storage bottle 8;
when the external oxygen cover 10 moves towards the internal oxygen cover 1 again, the external oxygen cover 10 extrudes the internal space, so that the internal air is extruded into the storage bottle 8 through the third one-way valve 25, then the external oxygen cover 10 moves again, so that the external oxygen cover 10 moves towards the outside of the internal oxygen cover 1, at the moment, the anesthetic gas filter 21 filters the air containing anesthetic gas in the internal oxygen cover 1 again, the air entering the internal oxygen cover 1 is stored again in the space on one side of the sealing plate facing the external oxygen cover 10, and the anesthetic agent remained on the inner wall of the internal oxygen cover 1 is flushed by continuous air flow, so that the anesthetic gas content in the internal oxygen cover 1 is further reduced.
In addition, in order to ensure that the patient can inhale the anesthetic gas, the air pressure of the internal oxygen cover 1 needs to be increased, in the process, the air containing the anesthetic gas in the internal oxygen cover 1 overflows from the contact position of the skin of the patient and the internal oxygen cover 1, at the moment, the overflowed air firstly enters the annular groove 2 formed at the inner edge of the external oxygen cover 10, and the overflowed air can enter the storage barrel 7 through the through hole communicated with the annular groove 2 due to the negative pressure structure formed by the screw 6 and the piston 23 arranged in the storage barrel 7 and is temporarily stored by the storage barrel 7, so that the air overflow probability of the anesthetic gas is reduced.
The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (10)

1.一种麻醉用废气过滤装置，包括内部氧气罩，其特征在于，所述内部氧气罩外设置有外部氧气罩，所述外部氧气罩与内部氧气罩贴合，所述内部氧气罩侧面开设有多个通气孔，所述通气孔内安装有第一单向阀，所述外部氧气罩内侧开设有多个与通气孔相接触的安装槽，所述安装槽内安装有麻醉气体过滤器，所述外部氧气罩内安装有密封件，所述内部氧气罩内顶部安装有固定件，所述固定件与密封件相连接。1. An anesthesia waste gas filtering device, comprising an internal oxygen hood, characterized in that an external oxygen hood is arranged outside the internal oxygen hood, the external oxygen hood is fitted with the internal oxygen hood, a plurality of ventilation holes are opened on the side of the internal oxygen hood, a first one-way valve is installed in the ventilation holes, a plurality of mounting grooves in contact with the ventilation holes are opened on the inner side of the external oxygen hood, an anesthetic gas filter is installed in the mounting groove, a sealing member is installed in the external oxygen hood, a fixing member is installed on the top of the internal oxygen hood, and the fixing member is connected to the sealing member. 2.根据权利要求1所述的一种麻醉用废气过滤装置，其特征在于，所述密封件包括密封板，所述密封板滑动连接在外部氧气罩内，且密封板与安装槽滑动接触，所述固定件安装在密封板面向内部氧气罩的一侧，所述密封板面向外部氧气罩的一面上安装有连接件，所述连接件远离密封板的一端与外部氧气罩相连接。2. An anesthesia waste gas filtering device according to claim 1, characterized in that the sealing member includes a sealing plate, the sealing plate is slidably connected in the external oxygen hood, and the sealing plate is in sliding contact with the mounting groove, the fixing member is installed on the side of the sealing plate facing the internal oxygen hood, and a connecting member is installed on the side of the sealing plate facing the external oxygen hood, and the end of the connecting member away from the sealing plate is connected to the external oxygen hood. 3.根据权利要求2所述的一种麻醉用废气过滤装置，其特征在于，所述连接件包括连接杆，所述连接杆安装在密封板远离内部氧气罩的一面上，所述连接杆远离密封板的一端套接有连接筒，所述连接筒远离连接杆的一端安装在外部氧气罩内，所述连接杆在连接筒内的一端安装有限制块，所述限制块滑动连接在存储筒内。3. An anesthesia waste gas filtering device according to claim 2, characterized in that the connecting part includes a connecting rod, the connecting rod is installed on the side of the sealing plate away from the internal oxygen cover, the end of the connecting rod away from the sealing plate is sleeved with a connecting tube, the end of the connecting tube away from the connecting rod is installed in the external oxygen cover, and a limiting block is installed at one end of the connecting rod in the connecting tube, and the limiting block is slidably connected in the storage tube. 4.根据权利要求3所述的一种麻醉用废气过滤装置，其特征在于，所述固定件包括圆杆，所述圆杆安装在密封板面向内部氧气罩的一侧，所述内部氧气罩内开设有圆孔，所述圆杆插接在圆孔内，所述圆杆在内部氧气罩的一端开设有限制槽，所述内部氧气罩内设置开设有转动槽，所述转动槽内转动连接有L型杆，所述L型杆卡接在限制槽内。4. An anesthesia waste gas filtering device according to claim 3 is characterized in that the fixing part includes a round rod, the round rod is installed on the side of the sealing plate facing the internal oxygen hood, a round hole is provided in the internal oxygen hood, the round rod is inserted in the round hole, a limiting groove is provided at one end of the round rod in the internal oxygen hood, a rotating groove is provided in the internal oxygen hood, an L-shaped rod is rotatably connected in the rotating groove, and the L-shaped rod is clamped in the limiting groove. 5.根据权利要求4所述的一种麻醉用废气过滤装置，其特征在于，所述密封板环形表面安装有密封垫，所述密封垫远离密封板的一侧与内部氧气罩相接触。5. An anesthesia waste gas filtering device according to claim 4, characterized in that a sealing gasket is installed on the annular surface of the sealing plate, and the side of the sealing gasket away from the sealing plate is in contact with the internal oxygen mask. 6.根据权利要求5所述的一种麻醉用废气过滤装置，其特征在于，所述外部氧气罩内部边缘处开设有环形槽，所述外部氧气罩外侧开设有与环形槽相通的通孔，所述通孔内安装有存储筒，所述存储筒内安装有第二单向阀，所述存储筒内远离第二单向阀的一侧安装有负压件。6. An anesthesia waste gas filtering device according to claim 5, characterized in that an annular groove is provided at the inner edge of the external oxygen mask, a through hole communicating with the annular groove is provided on the outer side of the external oxygen mask, a storage cylinder is installed in the through hole, a second one-way valve is installed in the storage cylinder, and a negative pressure part is installed on the side of the storage cylinder away from the second one-way valve. 7.根据权利要求6所述的一种麻醉用废气过滤装置，其特征在于，所述负压件包括螺杆，所述存储筒远离第二单向阀的一侧开设有螺纹孔，所述螺纹孔内螺纹连接有螺杆，所述螺杆在存储筒内的一端安装有活塞，所述活塞滑动连接在存储筒内。7. An anesthesia waste gas filtering device according to claim 6, characterized in that the negative pressure part includes a screw, a threaded hole is opened on the side of the storage cylinder away from the second one-way valve, a screw is threadedly connected in the threaded hole, a piston is installed at one end of the screw in the storage cylinder, and the piston is slidably connected in the storage cylinder. 8.根据权利要求7所述的一种麻醉用废气过滤装置，其特征在于，所述外部氧气罩外表面开设有连接管，所述连接管内安装有第三单向阀，所述连接管远离外部氧气罩的一端安装有存储瓶。8. An anesthesia waste gas filtering device according to claim 7, characterized in that a connecting pipe is provided on the outer surface of the external oxygen hood, a third one-way valve is installed in the connecting pipe, and a storage bottle is installed at one end of the connecting pipe away from the external oxygen hood. 9.根据权利要求8所述的一种麻醉用废气过滤装置，其特征在于，所述内部氧气罩和外部氧气罩端部均安装有保护垫。9. An anesthesia waste gas filtering device according to claim 8, characterized in that protective pads are installed at the ends of the internal oxygen mask and the external oxygen mask. 10.根据权利要求9所述的一种麻醉用废气过滤装置，其特征在于，所述外部氧气罩侧面开设有竖槽，所述竖槽内插接有延伸至内部氧气罩内的进气管，所述进气管内设置有排气管。10. An anesthesia waste gas filtering device according to claim 9, characterized in that a vertical groove is provided on the side of the external oxygen mask, an air inlet pipe extending into the internal oxygen mask is inserted into the vertical groove, and an exhaust pipe is provided in the air inlet pipe.
CN202510833814.1A 2025-06-20 2025-06-20 Anesthesia waste gas filtering device Active CN120346409B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202510833814.1A CN120346409B (en) 2025-06-20 2025-06-20 Anesthesia waste gas filtering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202510833814.1A CN120346409B (en) 2025-06-20 2025-06-20 Anesthesia waste gas filtering device

Publications (2)

Publication Number Publication Date
CN120346409A true CN120346409A (en) 2025-07-22
CN120346409B CN120346409B (en) 2025-09-05

Family

ID=96406477

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202510833814.1A Active CN120346409B (en) 2025-06-20 2025-06-20 Anesthesia waste gas filtering device

Country Status (1)

Country Link
CN (1) CN120346409B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206621641U (en) * 2016-12-09 2017-11-10 贵州医科大学附属医院 A kind of double-deck anti-leak anesthesia respirator mask
CN213724236U (en) * 2020-07-10 2021-07-20 中国医学科学院阜外医院 An induction mask and its gas recovery device
CN113231119A (en) * 2021-05-03 2021-08-10 绿城农科检测技术有限公司 Laboratory bench with absorb sour gas function
CN213994522U (en) * 2020-09-17 2021-08-20 广州市妇女儿童医疗中心（广州市妇幼保健院、广州市儿童医院、广州市妇婴医院、广州市妇幼保健计划生育服务中心） Anesthesia mask and anesthesia system for absorbing leaking anesthetic gas
CN216394972U (en) * 2021-09-27 2022-04-29 常州市德安医院（常州市慈善医院） Anesthesia respirator for anesthesia department
CN216572133U (en) * 2022-01-06 2022-05-24 长沙美德力医疗科技有限公司 Anesthetic gas adsorption filter
CN114618062A (en) * 2022-02-14 2022-06-14 平顶山市第二人民医院 Anesthetic gas inhalation-preventing device
CN116726335A (en) * 2023-06-28 2023-09-12 牡丹江医学院 Anesthesia waste gas extraction device and extraction method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206621641U (en) * 2016-12-09 2017-11-10 贵州医科大学附属医院 A kind of double-deck anti-leak anesthesia respirator mask
CN213724236U (en) * 2020-07-10 2021-07-20 中国医学科学院阜外医院 An induction mask and its gas recovery device
CN213994522U (en) * 2020-09-17 2021-08-20 广州市妇女儿童医疗中心（广州市妇幼保健院、广州市儿童医院、广州市妇婴医院、广州市妇幼保健计划生育服务中心） Anesthesia mask and anesthesia system for absorbing leaking anesthetic gas
CN113231119A (en) * 2021-05-03 2021-08-10 绿城农科检测技术有限公司 Laboratory bench with absorb sour gas function
CN216394972U (en) * 2021-09-27 2022-04-29 常州市德安医院（常州市慈善医院） Anesthesia respirator for anesthesia department
CN216572133U (en) * 2022-01-06 2022-05-24 长沙美德力医疗科技有限公司 Anesthetic gas adsorption filter
CN114618062A (en) * 2022-02-14 2022-06-14 平顶山市第二人民医院 Anesthetic gas inhalation-preventing device
CN116726335A (en) * 2023-06-28 2023-09-12 牡丹江医学院 Anesthesia waste gas extraction device and extraction method

Also Published As

Publication number Publication date
CN120346409B (en) 2025-09-05

Similar Documents

Publication Publication Date Title
CN104028056B (en) A kind of oil storage equipment filtration drying respiratory system
CN120346409B (en) Anesthesia waste gas filtering device
CN113952564A (en) Closed loop oxygen suppliment respiratory
CN211882330U (en) Movable detachable protective mask
CN221470620U (en) Exhalation valve of anesthesia machine
CN211962830U (en) Inhalation filter unit for gas mask
CN115518248B (en) Respiratory protection device with purification performance
CN211214848U (en) Trachea cannula device for preventing nosocomial infection
CN220237490U (en) a ventilator
CN214232351U (en) Neonate breathes auxiliary assembly
CN213609090U (en) Non-contact collecting and processing device for condensed water of breathing machine pipeline
CN209286431U (en) A kind of improvement metal autogenous cutting casing
CN221897123U (en) Fast-assembling waterproof ventilative valve
CN209713937U (en) Disposable breathing circuit captation
CN209221828U (en) A kind of waste gas of anesthesia abstraction device
CN116726335A (en) Anesthesia waste gas extraction device and extraction method
CN208642219U (en) A kind of activated carbon adsorption unit
CN111420313A (en) Closed circuit type respirator
CN207863049U (en) A kind of anti-pollution non-negative pressure stabilized tank
CN214807171U (en) Department of respiration nursing is with telescopic phlegm suction device
CN221384721U (en) An emergency breathing device for internal medicine clinical use
CN205515861U (en) Respiratory organ for emergency
CN209847463U (en) An easy-to-use simple ventilator for rats
CN211963619U (en) A disposable general anesthesia exhaust gas purifier
CN221431845U (en) Bubble humidifier

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant