CN111658942A - A breathe air filter for patient behind tracheotomy machine of withdrawing - Google Patents

A breathe air filter for patient behind tracheotomy machine of withdrawing Download PDF

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Publication number
CN111658942A
CN111658942A CN202010578707.6A CN202010578707A CN111658942A CN 111658942 A CN111658942 A CN 111658942A CN 202010578707 A CN202010578707 A CN 202010578707A CN 111658942 A CN111658942 A CN 111658942A
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CN
China
Prior art keywords
cabin
breathing
air inlet
air
patient
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Pending
Application number
CN202010578707.6A
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Chinese (zh)
Inventor
包爱华
张旻
周妍
张颖颖
谢国钢
包婺平
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Shanghai First Peoples Hospital
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Shanghai First Peoples Hospital
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Publication date
Application filed by Shanghai First Peoples Hospital filed Critical Shanghai First Peoples Hospital
Priority to CN202010578707.6A priority Critical patent/CN111658942A/en
Publication of CN111658942A publication Critical patent/CN111658942A/en
Pending legal-status Critical Current

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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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0463—Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0465—Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters
    • A61M16/047—Masks, filters, surgical pads, devices for absorbing secretions, specially adapted 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/1065—Filters in a path in the expiratory path
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/107—Filters in a path in the inspiratory path
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/202—Controlled valves electrically actuated
    • A61M16/203—Proportional
    • A61M16/204—Proportional used for inhalation control
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/202—Controlled valves electrically actuated
    • A61M16/203—Proportional
    • A61M16/205—Proportional used for exhalation control

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

The invention relates to a respiratory air filtering device for a patient after tracheotomy and withdrawal, which comprises an air inlet cabin, a negative pressure cabin, an air outlet cabin and a respiratory cabin, wherein the air inlet cabin is connected with the negative pressure cabin; an air inlet of the air inlet cabin is communicated with the atmosphere through a first temperature-humidity exchange filter; the air outlet of the air outlet chamber is connected with the negative pressure chamber through a second temperature-humidity exchange filter; the breathing chamber is provided with a roughly columnar inner cavity, an air inlet part communicated with the air inlet chamber, an air outlet part communicated with the air outlet chamber and a breathing port are formed on the inner cavity, and the breathing port is provided with a connector suitable for being connected with an airway pipeline of a patient; a rotating shaft is arranged in the inner cavity along the axial direction of the inner cavity, a paddle wheel is rotatably arranged on the rotating shaft through a ratchet mechanism, and three flat blades which are rotationally and symmetrically arranged along the radial line of the paddle wheel are arranged on the paddle wheel. The advantages are that: the open airway of the patient with airway infectious disease is properly isolated from the outside, so that the infectious pathogens discharged to the outside environment are reduced, and the secondary lower respiratory tract infection of the patient is reduced, thereby protecting the patient and the medical staff.

Description

A breathe air filter for patient behind tracheotomy machine of withdrawing
Technical Field
The invention relates to medical equipment in the technical field, in particular to a breathing air filtering device for a patient after tracheotomy withdrawal.
Background
Tracheotomy is a common method of establishing artificial airways in many patients with severe pneumonia infection/lung injury. The auxiliary mechanical ventilation after the connection of the respirator can ensure the ventilation function of the patient and maintain the blood oxygen level, thereby maintaining the life of the patient.
Since the tube connecting the tracheostomy tube to the ventilator is sealed, the patient's airway does not communicate directly with the outside during mechanical ventilation. But as the patient's condition improves, the ventilator will be gradually removed. Once disconnected from the ventilator, the tracheotomy patient will have their open airway in direct communication with the outside world, and the air that he breathes will be ambient air in the patient room. Although many isolation wards have a certain negative pressure, keeping the airways open for a long time by patients necessarily increases the viral load in the environment, which increases the chances of infection for medical staff and neighboring patients; at the same time, the patient inhales directly into the ambient air, also increasing the risk of secondary lung infections. Therefore, there is a strong clinical need to improve this condition.
At present because lack well-designed device, for avoiding the direct ward environment that gets into of air flue infectious disease patient's exhaling air, can be clinically for the external artificial nose (disposable moisture absorption condensation humidifier) of a tracheal catheter of tracheotomy patient, no matter inhale or exhale all through this artificial nose, although increased filtering capability to a certain extent, in case cough, the patient is in case, and the air flue secretion will spout, glue on the surface of artificial nose, influence gaseous passing through, in serious cases also lead to patient's not enough even risk of suffocation of air volume. The current solution can only be through the nurse's close observation, once there is secretion in time to change the artificial nose, this also adds more burden to clinical work. Meanwhile, the filtration of only a single artificial nose is still insufficient to filter all virus particles, and the filtration effect of the artificial nose is reduced with the use time.
Therefore, a more rational device is needed to address this clinical need. There has been no report on a breathing air filtering device for a patient after a tracheotomy evacuation machine according to the present invention.
Disclosure of Invention
The invention aims to provide a respiratory air filtering device for a patient after a tracheotomy withdrawal machine, aiming at properly isolating an open airway of the patient with airway infection from the outside, reducing the discharge of infectious pathogens to the outside environment through the filtering of an artificial nose and the applied negative pressure, and simultaneously reducing the secondary lower respiratory tract infection of the patient, thereby protecting the patient and medical staff.
In order to achieve the purpose, the invention adopts the technical scheme that:
a breathing air filtering device for a patient after tracheotomy withdrawal machine, characterized in that: comprises an air inlet cabin, a negative pressure cabin, an air outlet cabin and a breathing cabin; the negative pressure cabin is suitable for being connected with a central negative pressure system; an air inlet of the air inlet cabin is communicated with the atmosphere through a first temperature-humidity exchange filter; the air outlet of the air outlet cabin is connected with the negative pressure cabin through a second temperature-humidity exchange filter; the breathing cabin is provided with a roughly cylindrical inner cavity, an air inlet part communicated with an air outlet of the air inlet cabin, an air outlet part communicated with an air inlet of the air outlet cabin and a breathing port are formed on the inner cavity, and the breathing port is provided with a connector suitable for being connected with an airway pipeline of a patient; the inner cavity is internally provided with a rotating shaft along the axial direction, the rotating shaft is rotatably provided with a paddle wheel through a ratchet mechanism, and the paddle wheel is provided with three flat blades which are rotationally and symmetrically arranged along the radial line of the paddle wheel.
The breathing air filtering device comprises a box body, a strip-shaped opening is formed in the middle of the upper end of the box body, and a partition plate is arranged at the bottom in the box body; the inner cavity of the box body is divided into the air inlet cabin and the air outlet cabin by the partition board; the partition plate divides the opening into an air inlet cabin exhaust port and an air outlet cabin air inlet; the rotating shaft axis and the partition plate are located on the same virtual plane.
The breathing cabin is roughly cylindrical, the cylindrical cavity is formed in the breathing cabin, a strip-shaped opening is formed in the lower portion of the breathing cabin along the axis direction of the breathing cabin, and the opening is matched with the opening in shape and forms the air inlet portion and the exhaust portion.
The width of the opening does not exceed 1/4 of the circumference of the breathing chamber.
The invention has the advantages that:
the open airway of the patient with airway infectious disease is properly isolated from the outside, infectious pathogens discharged to the outside environment are reduced through the filtration of the artificial nose and the applied negative pressure, and the secondary lower respiratory tract infection of the patient is reduced, so that the patient is protected, and medical staff are also protected.
The invention can realize one-way uninterrupted airflow, so that the patient does not have the risk of blocking in the breathing process after the tracheal catheter of the patient is connected into the device, and the device is safer.
Drawings
FIG. 1 is a schematic structural diagram I of a breathing air filtering device for a patient after tracheotomy evacuation according to an embodiment of the invention;
fig. 2 is a schematic structural diagram II of the breathing chamber according to the embodiment of the present invention.
Detailed Description
The following examples are provided to illustrate specific embodiments of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and are intended to be illustrative of the invention and should not be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements are necessarily in a particular orientation, constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. Referring to fig. 1-2, in the present embodiment, there is provided a respiratory air filtering device for a patient after tracheotomy and evacuation, the main body of the respiratory air filtering device is a container containing four chambers, namely an air inlet chamber 1, a negative pressure chamber 3, an air outlet chamber 2 and a respiratory chamber 4.
One of the compartments is an air intake compartment 1 having an air inlet 11, the air inlet 11 being in communication with the outside atmosphere via a first temperature-humidity exchange filter 7 (artificial nose). One is an air outlet chamber 2 which is provided with an air outlet 21, and the air outlet 21 is connected with the negative pressure chamber 3 through a second temperature-humidity exchange filter 8. The underpressure chamber 3 is adapted to be connected to a low level central underpressure. Both the inlet chamber 1 and the outlet chamber 2 have an opening into the breathing chamber 4.
In the preferred embodiment, the breathing air filtering device comprises a box body 5, wherein an opening is formed in the middle of the upper end of the box body 5, and a partition plate 51 is arranged at the bottom in the box body 5; the partition 51 divides the internal cavity of the box 5 into the inlet compartment 1 and the outlet compartment 2, while the partition 51 divides the opening of the box into the outlet opening 11 of the inlet compartment 1 and the inlet opening 21 of the outlet compartment 2.
The breathing chamber 4 is detachably connected to the housing 5, in the preferred embodiment with a plug-in connection to the air inlet and outlet chamber, and is secured by a snap fit.
The breathing chamber 4 mainly functions as a one-way valve, and control gas can only flow from the gas inlet chamber 1 to the gas outlet chamber 2, but not vice versa. So that the patient inhales from the air intake chamber 1 and exhales towards the exhalation chamber 3. This one-way valve function plays an important role in the present invention.
The breathing chamber 4 is substantially cylindrical, and has a lower portion formed with a strip-shaped opening extending in the axial direction thereof, and the opening is connected to the upper end opening of the box body 5, thereby forming an air inlet portion communicating with the air outlet 12 of the air inlet chamber 1 and an air outlet portion communicating with the air inlet 22 of the air outlet chamber 2. The width of the opening does not exceed 1/4 of the perimeter of the breathing chamber, i.e. the angle of application does not exceed 90 degrees. The purpose of this design is to avoid dead zones in the rotation of the paddle wheel inside the breathing chamber 4.
In addition, the upper part of the breathing chamber 4 is formed with a breathing port 41, the breathing port 41 having an interface adapted to connect to the airway line of a patient.
The inner cavity of the breathing chamber 4 is also approximately cylindrical, a rotating shaft 42 is arranged in the inner cavity along the axial direction, and the rotating shaft 42 is rotatably provided with the paddle wheel 6 through a ratchet mechanism 43, so that the paddle wheel 6 can only rotate towards one direction. The paddle wheel 6 is provided with three flat blades 61, and the flat blades 61 are rotationally symmetrically arranged along the radial line of the paddle wheel 6.
When the patient inhales, the pressure of the direction of the air inlet blade close to the oral cavity of the patient is reduced, air flows to the air inlet blade, and the blade rotates forwards. On the contrary, when the patient exhales, the blades of the air inlet channel cannot rotate reversely due to the one-way gear arranged on the shaft, so that the exhaled air can only act on the blades of the exhalation channel, the blades of the respiratory channel are pushed forward, and the air enters the exhalation bin. Cannot come out of the air inlet channel.
Two ends of the rotating shaft 42 are arranged on two side surfaces of the breathing chamber 4, through holes are formed in the two side surfaces of the breathing chamber 4, the two ends of the rotating shaft 42 extend out of the breathing chamber 4 and are fixed through structures such as bolts, and the rotating shaft 42 can be taken out when needed. In addition, the axis of the rotating shaft 43 and the partition plate 51 are located on the same virtual plane.
The length of the flat blade 61 is limited to be freely rotatable in the breathing chamber 4, and the interval distance from the circumferential surface of the inner cavity of the breathing chamber 4 is about 1 mm.
The air inlet cabin 1, the negative pressure cabin 3, the air outlet cabin 2, the breathing cabin 4 and the paddle wheel 6 are all made of medical molecular materials, and are nontoxic and harmless.
The reason why the invention adopts the innovative paddle wheel structure to play the role of the one-way valve instead of selecting the existing air passage one-way valve is as follows:
the gas path check valve is used in a gas pipeline and controls the flow direction of gas. Such one-way valves mainly use valves to close the line. Compared with the conventional structure, the negative pressure cabin continuously provides negative pressure for the breathing cabin, and if a common valve structure is adopted, the valve is continuously opened under the action of the negative pressure, so that the due effect is not achieved.
Based on the structure, although the compression structures such as the spring, the magnetic attraction and the like are added, the sealing effect can be realized, the elastic force or the magnetic force is overcome during breathing, the spring is compressed, the magnet is disconnected to ensure the opening of the one-way valve, and the resistance is larger during breathing. The breathing air filtering device is used for the period after the patient is off-line, and the exhaled air of the patient is prevented from being communicated with the external atmosphere, so that the pollution is reduced. Just because the patient is in the off-line state, the patient is weak and cannot increase resistance manually, so any one-way valve structure for increasing the respiratory resistance is not suitable.
In the invention, the air outlet cabin 2 is externally connected with the negative pressure cabin 3, and then negative pressure is generated in the breathing cabin 4, so that the static friction force or the rotating friction force of the paddle wheel structure is counteracted, and therefore, no breathing resistance can be generated through the design.
In addition, because the air inlet cabin 1, the air outlet cabin 2 and the breathing cabin 4 are relatively closed spaces, the paddle wheel 6 structure can have certain poor sealing, but leaked air is still in the spaces and finally enters the breathing cabin to be filtered.
The invention has the advantages that:
compared with the manual operation of a clinician, the breathing air filtering device for the patient after the tracheotomy machine withdrawal can effectively save labor, realize unattended operation through a timing device, and the medicament is uniformly distributed and the curative effect is improved by using the hoop medicament manufactured by the method. The invention is suitable for all patients with yang syndrome or half-yin and half-yang pyogenic infections and sore and ulcer diseases to change the medicine.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and additions can be made without departing from the method of the present invention, and these modifications and additions should also be regarded as the protection scope of the present invention.

Claims (4)

1. A breathing air filtering device for a patient after tracheotomy withdrawal machine, characterized in that: comprises an air inlet cabin, a negative pressure cabin, an air outlet cabin and a breathing cabin; the negative pressure cabin is suitable for being connected with a central negative pressure system; an air inlet of the air inlet cabin is communicated with the atmosphere through a first temperature-humidity exchange filter; the air outlet of the air outlet cabin is connected with the negative pressure cabin through a second temperature-humidity exchange filter; the breathing cabin is provided with a roughly cylindrical inner cavity, an air inlet part communicated with an air outlet of the air inlet cabin, an air outlet part communicated with an air inlet of the air outlet cabin and a breathing port are formed on the inner cavity, and the breathing port is provided with a connector suitable for being connected with an airway pipeline of a patient; the inner cavity is internally provided with a rotating shaft along the axial direction, the rotating shaft is rotatably provided with a paddle wheel through a ratchet mechanism, and the paddle wheel is provided with three flat blades which are rotationally and symmetrically arranged along the radial line of the paddle wheel.
2. A breathing air filtration device for a post-tracheotomy patient according to claim 1, characterised in that: the breathing air filtering device comprises a box body, a strip-shaped opening is formed in the middle of the upper end of the box body, and a partition plate is arranged at the bottom in the box body; the baffle plate divides the inner cavity of the box body into the air inlet cabin and the air outlet cabin; the partition plate divides the opening into an air inlet cabin exhaust port and an air outlet cabin air inlet; the axis of the rotating shaft and the partition plate are positioned on the same virtual plane.
3. A breathing air filtration device for a post-tracheotomy patient according to claim 2, characterised in that: the breathing cabin is roughly cylindrical, the cylindrical cavity is formed in the breathing cabin, a strip-shaped opening is formed in the lower portion of the breathing cabin along the axis direction of the breathing cabin, and the opening is matched with the opening in shape and forms the air inlet portion and the air exhaust portion.
4. A breathing air filtration device for a post-tracheotomy patient according to claim 3, characterised in that: the width of the opening does not exceed 1/4 of the circumference of the breathing chamber.
CN202010578707.6A 2020-06-23 2020-06-23 A breathe air filter for patient behind tracheotomy machine of withdrawing Pending CN111658942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010578707.6A CN111658942A (en) 2020-06-23 2020-06-23 A breathe air filter for patient behind tracheotomy machine of withdrawing

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Application Number Priority Date Filing Date Title
CN202010578707.6A CN111658942A (en) 2020-06-23 2020-06-23 A breathe air filter for patient behind tracheotomy machine of withdrawing

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201353357Y (en) * 2009-02-20 2009-12-02 曹云飞 Artificial nose
US20120285454A1 (en) * 2009-10-29 2012-11-15 Resmed Ltd. Patient ventilation device and components thereof
CN203123246U (en) * 2013-03-14 2013-08-14 林存智 T-shaped protective tube of tracheotomy tube
CN208372260U (en) * 2018-02-11 2019-01-15 中国人民解放军总医院第一附属医院 Emergency rescue breathing face mask
CN208591054U (en) * 2017-10-09 2019-03-12 广州医科大学附属第一医院 A kind of accurate evaluation removes the device of machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201353357Y (en) * 2009-02-20 2009-12-02 曹云飞 Artificial nose
US20120285454A1 (en) * 2009-10-29 2012-11-15 Resmed Ltd. Patient ventilation device and components thereof
CN203123246U (en) * 2013-03-14 2013-08-14 林存智 T-shaped protective tube of tracheotomy tube
CN208591054U (en) * 2017-10-09 2019-03-12 广州医科大学附属第一医院 A kind of accurate evaluation removes the device of machine
CN208372260U (en) * 2018-02-11 2019-01-15 中国人民解放军总医院第一附属医院 Emergency rescue breathing face mask

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Application publication date: 20200915