CN113289172B - Aromatic methoxyflurane inhalation device for treating emergency traumatic pain - Google Patents

Aromatic methoxyflurane inhalation device for treating emergency traumatic pain Download PDF

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Publication number
CN113289172B
CN113289172B CN202110598136.7A CN202110598136A CN113289172B CN 113289172 B CN113289172 B CN 113289172B CN 202110598136 A CN202110598136 A CN 202110598136A CN 113289172 B CN113289172 B CN 113289172B
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air
chamber
methoxyflurane
inhalation
end part
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CN202110598136.7A
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CN113289172A (en
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任益锋
由凤鸣
付西
严然
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Teaching Hospital of Chengdu University of TCM
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Teaching Hospital of Chengdu University of TCM
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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
    • A61M15/00—Inhalators
    • A61M15/0001—Details of inhalators; Constructional features thereof
    • A61M15/0003—Details of inhalators; Constructional features thereof with means for dispensing more than one drug
    • 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
    • A61M15/00—Inhalators
    • A61M15/0001—Details of inhalators; Constructional features thereof
    • A61M15/0005—Details of inhalators; Constructional features thereof with means for agitating the medicament
    • A61M15/0006—Details of inhalators; Constructional features thereof with means for agitating the medicament using rotating means
    • A61M15/0008—Details of inhalators; Constructional features thereof with means for agitating the medicament using rotating means rotating by airflow
    • 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
    • A61M15/00—Inhalators
    • A61M15/0001—Details of inhalators; Constructional features thereof
    • A61M15/0021—Mouthpieces therefor
    • 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
    • A61M15/00—Inhalators
    • A61M15/0086—Inhalation chambers
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/75—General characteristics of the apparatus with filters
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0606—Face
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/10—Trunk
    • A61M2210/1025—Respiratory system

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The application relates to the technical field of medical supplies, and provides an aromatic methoxyflurane inhalation device for treating emergency traumatic pain, which comprises a base end part, a nozzle end part and a coaxial air inhalation-exhalation chamber structure, wherein the air inhalation-exhalation chamber structure comprises an air inhalation chamber and an air exhalation chamber, and the air inhalation chamber and the air exhalation chamber are respectively communicated with the nozzle end part through an air inlet channel and an air outlet channel; the end part of the base part is communicated with the air inhalation cavity through a methoxyflurane connecting pipe and an aromatic gas connecting pipe, and is communicated with the air exhalation cavity through an exhaust hole; an evaporation chamber, an air supply chamber and a turbulent flow chamber are sequentially arranged in the air suction chamber from one side of the end part of the base part to one side of the end part of the nozzle, and an air filtering device is arranged in the air exhaling chamber. According to the application, methoxyflurane and aromatic gases are mixed for patients to inhale the aromatic methoxyflurane, so that the tolerance of emergency trauma patients to analgesic drugs is improved while effective analgesia is provided.

Description

Aromatic methoxyflurane inhalation device for treating emergency traumatic pain
Technical Field
The application relates to the technical field of medical supplies, in particular to an aromatic methoxyflurane inhalation device for treating emergency traumatic pain.
Background
Storing an active agent or an inhalable liquid that is itself an active agent is often challenging, as is administering the inhalable liquid to a patient. Due to patient preference or different dosing environments, active agents (such as therapeutic agents or medicaments) may be formulated for oral delivery in the form of tablets and capsules, nasal delivery in the form of sprays, and intravenous delivery in the form of liquids.
In order to successfully administer an active agent to the lungs of a patient to alleviate or treat respiratory disorders, it is important to select an appropriate inhalation device in order to administer the active agent via the oral and nasal inhalation routes. These oral inhalation devices typically require delivery of the active agent to the lungs via a pressurizing device and to the desired site of action.
While the use as active agents or volatile liquids containing active agents is known. Such as halogenated volatile liquids, which have been described as useful for inducing, maintaining, and thus acting as, anesthetics, analgesics, including amnesia, muscle paralysis, sedation. The halogenated volatile liquid, when used for general anesthesia, may be inhaled by the patient under positive pressure via a delivery system comprising a vaporizer and a respirable orifice. More recently, halogenated volatile liquids have been formulated for local or regional anesthesia and analgesia via non-inhalation routes.
Inhalation devices that cause liquids to be atomized or aerosolized to form droplets of inhalable size, or heated to form vapor, require arrangements including moving, mechanical, heating, and/or electrical devices, which add complexity to the design, manufacturing, and cost and operability to the end user.
For safe storage and handling of volatile liquids, major considerations typically include vapor pressure build-up, container robustness, and container seal integrity. Many researchers are currently trying to design new inhalation devices for inhalable drugs, as shown in FIG. 1, which shows a prior art Green Whistle TM Inhaler device (1) (Medical Developments International Limited), which is currently in AustraliaDalgaria was used to deliver methoxyflurane as an inhaled analgesic (1.5 mL or 3mL capped storage brown glass vial container). When needed for use, the delivered dose of methoxyflurane is poured into the base end (3) of the device. After the methoxyflurane poured into the base end is delivered to the vaporizing device (not shown), the methoxyflurane is vaporized so that the patient can administer the analgesic by inhaling the air/vapor mixture through the mouthpiece end (2). While the patient breathes from the end of the mouthpiece, any exhaled air/vapor mixture will leave the device via an externally fitted chamber containing an activated carbon "AC chamber" (4).
However, patients are often intolerable due to the specific odor of methoxyflurane itself. Therefore, the application adds an additional aromatic drug administration device based on the existing inhalation device to improve the tolerance of patients and the analgesic effect of drugs.
Disclosure of Invention
The application aims to provide an aromatic methoxyflurane inhalation device for treating emergency traumatic pain, which solves the problem of the prior art.
The embodiment of the application is realized by the following technical scheme:
an aromatised methoxyflurane inhalation device for use in the treatment of acute traumatic pain, comprising a base end, a nozzle end and a coaxial air inhalation-exhalation chamber arrangement comprising an air inhalation chamber and an air exhalation chamber;
the air inhalation chamber and the air exhalation chamber are communicated with the end part of the nozzle through an air inlet channel and an air outlet channel respectively, an air inlet valve is arranged in the air inlet channel, and an air outlet valve is arranged in the air outlet channel;
the air inhalation chamber is positioned in the air exhalation chamber, the end part of the base part, the air inhalation chamber and the air exhalation chamber form mutually independent chambers through a second partition board, and the second partition board is provided with a methoxyflurane connecting pipe and an aromatic gas connecting pipe which are communicated with the air inhalation chamber and an exhaust hole which is communicated with the air exhalation chamber;
an evaporation chamber, an air supply chamber and a turbulent flow chamber are sequentially arranged from one side of the end part of the base part to one side of the end part of the nozzle, the evaporation chamber is opposite to the methoxyflurane connecting pipe, an evaporation support material for evaporating methoxyflurane liquid is arranged in the evaporation chamber, a compression fan for sending methoxyflurane and aromatic gas into the turbulent flow chamber is arranged in the air supply chamber, and a turbulent flow impeller for mixing methoxyflurane and aromatic gas is arranged in the turbulent flow chamber;
an air filter device is arranged in the air exhaling chamber and is used for filtering the exhaling air when a patient exhales through the end part of the nozzle, and the exhaling air leaves through the exhaust hole.
Further, the air inlet valve comprises a first valve plate rotatably connected to the inner wall of the air inlet channel and a first baffle plate arranged on the inner wall of the air inlet channel and used for preventing the first valve plate from rotating towards one side of the air suction chamber.
Further, the exhaust valve comprises a second valve plate and a second baffle, the second valve plate is arranged on the inner wall of the air outlet channel in a rotating mode, the second baffle is arranged on the inner wall of the air outlet channel and used for preventing the second valve plate from rotating towards one side of the end portion of the nozzle, a connecting rod is hinged to the side face, facing the air exhaling cavity, of the second valve plate, and a floating ball is connected to the connecting rod.
Further, the inner diameter of the air outlet channel gradually increases from the exhaust valve to one end of the air exhaling cavity to be larger than the diameter of the floating ball, and the inner cavity of the air outlet channel close to the exhaust valve is attached to the floating ball.
Further, the vortex impeller comprises a rotating shaft which is rotatably arranged on the inner wall of the air suction chamber and a plurality of transverse plates which are circumferentially arranged along the outer diameter surface of the rotating shaft, and end plates fixedly connected with the end parts of all the transverse plates are arranged at two ends of the rotating shaft.
Further, a breathing mask is provided on the end of the mouthpiece.
Further, the air filtration device comprises a plurality of activated carbon particles and a breathable net membrane for limiting the activated carbon particles in an air exhaling cavity.
The technical scheme of the embodiment of the application has at least the following advantages and beneficial effects:
according to the application, the methoxyflurane connecting pipe and the aromatic gas connecting pipe which are connected with the air suction cavity are arranged at the end part of the base part and are used for sending methoxyflurane and aromatic gas into the air suction cavity and mixing the methoxyflurane and the aromatic gas in the air suction cavity, so that the patient can inhale the aromatic methoxyflurane, and the tolerance of the emergency wound patient to analgesic drugs is improved while effective analgesia is provided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a prior art inhalation device;
FIG. 2 is a schematic diagram of an aromatherapy methoxyflurane inhalation device for the treatment of acute traumatic pain according to example 1 of the present application;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is a view showing the state of an aromatherapy methoxyflurane inhalation device for the treatment of acute traumatic pain according to example 1 of the present application when inhaling;
FIG. 6 is a state diagram of an aromatherapy methoxyflurane inhalation device for the treatment of acute traumatic pain according to example 1 of the present application in the case of exhalation;
fig. 7 is a cross-sectional view of a turbulator impeller.
Icon: 1-inhalation device, 2-nozzle end, 3-base end, 4-AC chamber, 5-air inhalation-exhalation chamber structure, 501-air inhalation chamber, 502-air exhalation chamber, 6-first baffle, 7-air inlet channel, 8-air outlet channel, 9-air inlet valve, 901-first valve plate, 902-first baffle, 10-air outlet valve, 101-second valve plate, 102-second baffle, 103-connecting rod, 104-floating ball, 11-second baffle, 12-methoxyflurane connecting tube, 13-aromatic gas connecting tube, 14-exhaust hole, 15-evaporation chamber, 16-evaporation support material, 17-air supply chamber, 18-compression fan, 19-turbulence chamber, 20-turbulence impeller, 201-spindle, 202-diaphragm, 203-end plate, 21-respiratory mask, 22-activated carbon particles, 23-ventilation web.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
Referring to fig. 2 to 7, the present embodiment provides an aromatised methoxyflurane inhalation device for the treatment of emergency traumatic pain, comprising a base end 3, a nozzle end 2 and a coaxial air inhale-exhale chamber arrangement 5, the coaxial air inhale-exhale chamber arrangement 5 comprising an air inhale chamber 501 and an air exhale chamber 502, and the air inhale chamber 501 being located inside the air exhale chamber 502.
Specific:
the base end 3, the air inhalation chamber 501 and the air exhalation chamber 502 form mutually independent chambers through the second partition plate 11, the second partition plate 11 is provided with a methoxyflurane connecting pipe 12 and an aromatic gas connecting pipe 13 which are communicated with the air inhalation chamber 501, the methoxyflurane connecting pipe 12 and the aromatic gas connecting pipe 13 are respectively provided with external threads so as to be connected with a container for storing methoxyflurane and aromatic gas, and the second partition plate 11 is also provided with an exhaust hole 14, so that the base end 3 is communicated with the air exhalation chamber 502 through the exhaust hole 14.
The air intake chamber 501 is internally provided with an evaporation chamber 15, an air supply chamber 17 and a turbulent flow chamber 19 from one side of a base end 3 to one side of a nozzle end 2 in sequence, the evaporation chamber 15 is opposite to a methoxyflurane connecting pipe 12, the evaporation chamber 15 is provided with an opening for methoxyflurane to circulate, the evaporation chamber 15 is internally provided with an evaporation support material 16, the evaporation support material 16 is in the prior art, the suction device 1 provided in the background art can be referred to, methoxyflurane liquid is evaporated into gas by the evaporation support material 16 and enters the air supply chamber 17, the air supply chamber 17 is internally provided with a compression fan 18, the compression fan 18 is used for sending methoxyflurane vapor and aromatic gas into the turbulent flow chamber 19, the turbulent flow chamber 19 is internally provided with a turbulent flow impeller 20, the turbulent flow impeller 20 comprises a rotating shaft 201 arranged on the inner wall of the air intake chamber 501 and a plurality of cross plates 202 circumferentially arranged along the outer diameter surface of the rotating shaft 201, two ends of the rotating shaft 201 are provided with end plates 203 fixedly connected with all the cross plates 202, when methoxyflurane vapor and aromatic gas are sent into the turbulent flow chamber 19 by the compression fan 18, and methoxyflurane vapor and aromatic gas are enabled to enter the air supply chamber 17, the air supply chamber 18, the air supply air, the turbulent flow chamber is provided with the methoxyflurane vapor, and aromatic gas is fully filled with the turbulent flow, and the methoxyflurane vapor, and the air is convenient to flow, and the air, and the turbulent flow chamber is fully provided with the air, and the air flow, and the air and the turbulent flow chamber and the air.
The air inhalation chamber 501 and the air exhalation chamber 502 and the nozzle end 2 form mutually independent chambers through the first partition board 6, the air inhalation chamber 501 and the air exhalation chamber 502 are respectively communicated with the nozzle end 2 through the air inlet channel 7 and the air outlet channel 8, the breathing mask 21 is arranged on the nozzle end 2, the leakage of methoxyflurane is prevented through the breathing mask 21, and the passive inhalation of methoxyflurane by people around a patient is avoided. An air inlet valve 9 is arranged in the air inlet channel 7, an air outlet valve 10 is arranged in the air outlet channel 8, the air inlet valve 9 comprises a first valve plate 901 rotatably connected to the inner wall of the air inlet channel 7 and a first baffle 902 arranged on the inner wall of the air inlet channel 7 and used for preventing the first valve plate 901 from rotating towards one side of the air suction cavity 501, when a patient inhales, the first valve plate 901 rotates towards one side of the nozzle end, the air inlet channel 7 is opened, and methoxyflurane vapor and aromatic gas enter the nozzle end 2 from the air suction cavity 501 through the air inlet channel 7 for inhalation by the patient; the exhaust valve 10 comprises a second valve plate 101 arranged on the inner wall of the exhaust passage 8 in a rotating way and a second baffle plate 102 arranged on the inner wall of the exhaust passage 8 and used for preventing the second valve plate 101 from rotating towards one side of the nozzle end 2, a connecting rod 103 is hinged on the side face of the second valve plate 101 facing the air exhaling cavity 502, a floating ball 104 is connected to the connecting rod 103, the inner diameter of the exhaust passage 8 gradually increases from the exhaust valve 10 to one end of the air exhaling cavity 502 to be larger than the diameter of the floating ball 104, the inner cavity of the exhaust passage 8 close to the exhaust valve 10 is attached to the floating ball 104, when a patient exhales, as the first valve plate 901 is blocked by the first baffle plate 902 and cannot rotate towards one side of the air inhaling cavity 501, the air inlet passage 7 is closed, the expired air exerts pressure on the second valve plate 101, so that the second valve plate 101 rotates towards one side of the air exhaling cavity 502, the second valve plate 101 pushes the floating ball 104 to move towards the air exhaling cavity 502 through the connecting rod, thereby opening the exhaust passage 8, so that the air enters the air exhaling cavity 502, an air filtering device is arranged in the air exhaling cavity 502, the air filtering device comprises active carbon 22 and active carbon particles and air particles which are exhausted from the air exhaling cavity 22 to the air filter membrane 2 through the first end of the active carbon filter membrane 22, and the active carbon particles which are exhausted from the air exhale through the air filter membrane 2, and the air exhaling cavity 2, and the active carbon particles are completely through the active carbon filter membrane 2, and the active carbon particles and the air filter layer 2.
From the above, the method for using the aromatic methoxyflurane inhalation device 1 for treating acute traumatic pain according to the present embodiment is as follows:
firstly, a container for holding armored oxyfluoride and aromatic gas is respectively connected with a methoxyfluoride connecting pipe 12 and an aromatic gas connecting pipe 13, methoxyfluoride liquid is sent into an evaporation chamber 15 to be evaporated into methoxyfluoride vapor, then the methoxyfluoride vapor and the aromatic gas are sent into a turbulence chamber 19 together by a compression fan 18, the methoxyfluoride vapor and the aromatic gas are mixed by a turbulence impeller 20, then are inhaled by a patient from an air inlet channel 7, and the gas exhaled by the patient after being inhaled enters an air exhaling chamber 502 through an air outlet channel 8 and is exhausted through an exhaust hole 14.
It should be noted that methoxyflurane may be replaced herein with other halogenated volatile liquids that may be used as narcotic analgesics, such as halothane, sevoflurane, desflurane, enflurane, isoflurane, etc.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (4)

1. An aromatised methoxyflurane inhalation device for use in the treatment of acute traumatic pain, comprising a base end, a nozzle end and a coaxial air inhalation-exhalation chamber arrangement comprising an air inhalation chamber and an air exhalation chamber, characterized in that:
the air inhalation chamber and the air exhalation chamber are communicated with the end part of the nozzle through an air inlet channel and an air outlet channel respectively, an air inlet valve is arranged in the air inlet channel, and an air outlet valve is arranged in the air outlet channel;
the air inhalation chamber is positioned in the air exhalation chamber, the end part of the base part, the air inhalation chamber and the air exhalation chamber form mutually independent chambers through a second partition board, and the second partition board is provided with a methoxyflurane connecting pipe and an aromatic gas connecting pipe which are communicated with the air inhalation chamber and an exhaust hole which is communicated with the air exhalation chamber;
an evaporation chamber, an air supply chamber and a turbulent flow chamber are sequentially arranged from one side of the end part of the base part to one side of the end part of the nozzle, the evaporation chamber is opposite to the methoxyflurane connecting pipe, an evaporation support material for evaporating methoxyflurane liquid is arranged in the evaporation chamber, a compression fan for sending methoxyflurane and aromatic gas into the turbulent flow chamber is arranged in the air supply chamber, and a turbulent flow impeller for mixing methoxyflurane and aromatic gas is arranged in the turbulent flow chamber;
an air filtering device is arranged in the air exhaling cavity and is used for filtering the exhaling air when a patient exhales through the end part of the nozzle and enabling the exhaling air to leave through the exhaust hole;
the air inlet valve comprises a first valve plate rotatably connected to the inner wall of the air inlet channel and a first baffle plate arranged on the inner wall of the air inlet channel and used for preventing the first valve plate from rotating towards one side of the air suction chamber;
the exhaust valve comprises a second valve plate and a second baffle, the second valve plate is rotatably arranged on the inner wall of the air outlet channel, the second baffle is arranged on the inner wall of the air outlet channel and used for preventing the second valve plate from rotating towards one side of the end part of the nozzle, a connecting rod is hinged on the side surface, facing the air exhaling cavity, of the second valve plate, and a floating ball is connected on the connecting rod;
the inner diameter of the air outlet channel gradually increases from the exhaust valve to one end of the air exhaling cavity to be larger than the diameter of the floating ball, and the inner cavity of the air outlet channel close to the exhaust valve is attached to the floating ball.
2. The aromatised methoxyflurane inhalation device for the treatment of acute traumatic pain according to claim 1, characterized in that: the vortex impeller comprises a rotating shaft and a plurality of transverse plates, wherein the rotating shaft is arranged on the inner wall of the air suction chamber in a rotating mode, the transverse plates are arranged along the circumference of the outer diameter face of the rotating shaft, and end plates fixedly connected with the end portions of all the transverse plates are arranged at two ends of the rotating shaft.
3. The aromatised methoxyflurane inhalation device for the treatment of acute traumatic pain according to claim 1, characterized in that: the end of the nozzle is provided with a breathing mask.
4. The aromatised methoxyflurane inhalation device for the treatment of acute traumatic pain according to claim 1, characterized in that: the air filtration device comprises a plurality of activated carbon particles and a breathable net membrane for limiting the activated carbon particles in an air exhalation chamber.
CN202110598136.7A 2021-05-31 2021-05-31 Aromatic methoxyflurane inhalation device for treating emergency traumatic pain Active CN113289172B (en)

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