Trachea cannula breathing filter

Abstract

The utility model provides a trachea cannula breathing filter which comprises an air inlet channel and an air outlet channel, and a one-way air inlet valve is installed at the first end of the air inlet channel; a one-way air outlet valve is mounted at the first end of the air outlet channel, and the non-return directions of the one-way air inlet valve and the one-way air outlet valve are opposite; an air outlet filter screen is installed on the side, away from the first end of the air outlet channel, of the one-way air outlet valve. By means of the design of the filter, gas inhaled by a patient again after exhaling is filtered, the purpose of intercepting and filtering impurities in the breathing bag is achieved, and therefore the trachea cannula is prevented from being blocked.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a tracheal intubation breathing filter. Background Art

[0002] At present, for the treatment of respiratory alkalosis in clinical practice, apart from causal treatment, analgesia and sedation, and even muscle relaxant treatment, there is a lack of other simple and easy symptomatic treatment methods. In clinical practice, a sealed plastic bag or paper bag is usually used to cover the patient's mouth, nose, or endotracheal tube outlet to create an enclosed space so that all the carbon dioxide exhaled by the patient is collected in the sealed space. The patient inhales part of the carbon dioxide he exhaled, increasing the carbon dioxide content in the patient's inhaled gas, thereby increasing the carbon dioxide partial pressure in the patient's alveoli to relieve and eliminate the patient's respiratory alkalosis symptoms.

[0003] However, when the patient inhales gas from a container storing carbon dioxide, residual water vapor and impurities may flow back with the gas, posing a risk of blocking the endotracheal tube. Utility Model Content

[0004] In view of the above technical problems, the utility model filters the gas that is exhaled and then inhaled again by the patient through the design of a filter, thereby achieving the purpose of intercepting impurities in the filter breathing bag, thereby preventing the endotracheal tube from being blocked.

[0005] The first aspect of the utility model provides a tracheal intubation breathing filter, comprising:

[0006] An air inlet passage and an air outlet passage, wherein a one-way air inlet valve is installed at the first end of the air inlet passage;

[0007] A one-way air outlet valve is installed at the first end of the air outlet passage, and the one-way air inlet valve and the one-way air outlet valve have opposite check directions;

[0008] An air outlet filter is installed on a side of the one-way air outlet valve away from the first end of the air outlet channel.

[0009] The beneficial effect of the utility model is that the utility model controls the channel for gas circulation through a one-way valve, and a filter is set in the channel for the patient to inhale gas, so as to filter and clean the gas repeatedly inhaled by the patient and prevent impurities from being inhaled back into the endotracheal tube, thereby achieving the purpose of preventing endotracheal intubation or patient airway obstruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The new embodiment is assembled Figure 1 ;

[0011] Figure 2 The new embodiment is assembled Figure 1 Sectional drawing;

[0012] Figure 3 The new embodiment is assembled Figure 1 Sectional view;

[0013] Figure 4 The new embodiment is assembled Figure 2 ;

[0014] Figure 5 The new embodiment is assembled Figure 2 Section Figure 1 ;

[0015] Figure 6 The new embodiment is assembled Figure 2 Section Figure 2 ;

[0016] Figure 7 The new embodiment is assembled Figure 3 ;

[0017] The meanings of the numbers in the above figure are: 1 air intake channel, 2 one-way air intake valve, 3 one-way air outlet valve, 4 air outlet channel, 5 air outlet filter, 11 air inlet, 21 lightweight air intake sealing piece, 22 air intake limit piece, 31 lightweight air outlet sealing piece, 32 air outlet limit piece, 6 drain hole, 7 external casing. DETAILED DESCRIPTION

[0018] The following examples further illustrate the content of the utility model, but should not be construed as limiting the utility model. Without departing from the spirit and essence of the utility model, modifications or replacements made to the methods, steps or conditions of the utility model are within the scope of the utility model.

[0019] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0020] In this new embodiment, the air outlet direction is that the air outlet filter 5 points to the one-way air outlet valve 3, and the air inlet direction is opposite to the air outlet direction.

[0021] In some embodiments, Figure 1-7 As shown, a tracheal tube breathing filter comprises:

[0022] An air inlet passage 1 and an air outlet passage 4, wherein a one-way air inlet valve 2 is installed at the first end of the air inlet passage;

[0023] A one-way air outlet valve 3 is installed at the first end of the air outlet passage 4, and the one-way air inlet valve 2 and the one-way air outlet valve 3 have opposite check directions;

[0024] An air outlet filter 5 is installed on one side of the one-way air outlet valve 3 away from the first end of the air outlet channel 4 .

[0025] In this embodiment:

[0026] The air inlet channel 1 and the air outlet channel 4 are both connected to the patient's endotracheal tube and can be separated or integrally formed. When in use:

[0027] 1. When the patient exhales: the exhaled gas pushes open the one-way air inlet valve 2 and enters the enclosed space through the air inlet channel 1, and the one-way air outlet valve 3 of the air outlet channel 4 is closed; the enclosed space is usually a paper bag, a plastic bag, a breathing ball, etc.;

[0028] 2. When the patient inhales: the gas collected in the enclosed space passes through the gas outlet channel 4, and the gas pushes the one-way gas outlet valve 3 to open the gas outlet channel 4. A filter is installed in the gas outlet channel 4 to filter the gas flowing out of the gas outlet channel 4.

[0029] When the patient exhales and inhales, the gas is divided into different channels for diversion, and impurities that may be inhaled during inhalation are filtered and trapped in a closed space. The gas repeatedly inhaled by the patient is filtered and cleaned to prevent impurities from being inhaled back into the endotracheal tube, thereby achieving the purpose of preventing endotracheal intubation or patient airway obstruction.

[0030] In some embodiments, Figure 1-6 As shown, the one-way air intake valve 2 comprises a lightweight air intake sealing sheet 21 and an air intake limiting sheet 22. The lightweight sealing sheet 21 is movably installed in the air intake passage 1 and almost covers the air intake passage.

[0031] The air intake limiting plate 22 is fixedly mounted on the inner wall of the air intake passage 1 and mounted on the side of the air intake port 11 , and can be mounted separately from the lightweight air intake sealing plate 21 .

[0032] In some embodiments, Figure 1-6 As shown, the one-way air outlet valve 3 includes a lightweight air outlet sealing sheet 31 and an air outlet limiting sheet 32. The lightweight air outlet sealing sheet 31 is movably installed in the air outlet channel 4 and almost covers the air outlet channel 4.

[0033] The air outlet limiting plate 32 is movably mounted on the inner wall of the air outlet channel 4 and is installed near the side of the air outlet filter 5 , and can be installed separately from the lightweight air inlet sealing plate 21 .

[0034] In these embodiments:

[0035] At least one end of the valve disc lightweight air inlet sealing piece 21 and the lightweight air outlet sealing piece 31 is movably connected to the valve body (i.e., the air inlet channel 1 and the air outlet channel 4), such as hinged, hinged, or slide-type; the limit plate limits the check direction (i.e., the opening and closing direction) of the valve disc.

[0036] The air intake limiting plate 22 limits the lightweight air intake sealing plate 21 from opening in the air intake direction and closing in the air outlet direction;

[0037] The air outlet limiting piece 32 limits the lightweight air outlet sealing piece 31 to open in the air outlet direction and close in the air inlet direction;

[0038] Under gas pressure, the limit plate restricts the movement of the sealing plate, so that the sealing plate is closed: when the lightweight air inlet sealing plate 21 or the lightweight air outlet sealing plate 31 is opened under gas pressure, the other sealing plate is closed to achieve inlet and outlet gas diversion.

[0039] In some embodiments: the one-way air outlet valve and the one-way air inlet valve are spring-loaded or gravity-loaded closed check valves.

[0040] In these embodiments:

[0041] At least one end of the valve flap (i.e., the lightweight air inlet sealing sheet 21 and the lightweight air outlet sealing sheet 31) is movably connected to the air inlet channel 1 and the air outlet channel 4 in the valve body. Specifically, it can be configured as one or more of the following combinations:

[0042] 1. Spring type: The spring-controlled valve flap, lightweight air inlet sealing piece 21 and lightweight air outlet sealing piece 31, is lifted by gas pressure. When the pressure disappears, the spring force resets the valve flap to block the backflow of liquid. A lightweight spring wire can be connected between the corresponding limit pieces of the lightweight air inlet sealing piece 21 and the lightweight air outlet sealing piece 31 to form a spring-type closed check valve.

[0043] 2. Gravity type: Similar to the spring type, it relies on the valve disc's own gravity to close and prevent backflow; when in use, the air inlet and outlet channels are approximately parallel to the ground, with one end and the openable end of the valve disc close to the ground.

[0044] 3. Swing type: The gas passes directly in the valve body, and relies on pressure to push open the rotating valve disc on one side. After the pressure is lost, the valve disc returns to its original position by its own weight, and the reverse gas pressure closes the valve disc. When in use, the air inlet and outlet channels are approximately parallel to the ground, and one end is close to the ground with the openable end of the valve disc.

[0045] In some embodiments: the filter is a sterile filter.

[0046] In these embodiments: the filter is sterilized to prevent the patient from being infected by exogenous pathogens when breathing.

[0047] In some embodiments, Figure 4-6 As shown: a drain hole 6 is provided on the outlet channel 4 at the side of the outlet filter 5 away from the one-way outlet valve 3.

[0048] In these embodiments: the drain hole 6 can discharge impurities filtered and trapped by the air outlet filter 5 to prevent the air outlet channel from being blocked. The drain hole 6 can be closed or a through hole, connected to the outside world or to a device for collecting impurities and inputting gas.

[0049] In some embodiments: the filter screen is a cylindrical filter screen or a sheet filter screen.

[0050] In these embodiments: a cylindrical filter screen adapted thereto can be installed in the drain hole 6 to filter out impurities in the air outlet passage, and at the same time discharge impurities trapped by the air outlet filter screen 5 to prevent the air outlet passage from being blocked.

[0051] In some embodiments: Figure 7 As shown: a movable external sleeve 7 is arranged outside the air inlet channel and the air outlet channel, and both ends of the external sleeve are respectively connected to the endotracheal tube or the device for containing gas in an airtight manner, and airtight components are fixed to both ends of the external sleeve.

[0052] In these embodiments: the external sleeve 7 is sleeved on the air inlet channel and the air outlet channel, so as to facilitate the extension of the endotracheal tube and the installation and use of the air inlet channel and the air outlet.

[0053] In some embodiments: the light transmittance of the air outlet channel 4 is 50-99%.

[0054] In these embodiments: the air outlet channel 4 is light-transmissive, which facilitates observation of the ventilation conditions in the channel and prevents pipeline blockage from being discovered in time.

[0055] In some embodiments: the air outlet filter 5 is sterile gauze.

[0056] In these embodiments: sterile gauze can be directly packaged in the closed space and at the end of the air outlet channel 4, which is convenient for replacement and installation.

[0057] The technical effect of the utility model is that the gas inhaled again after the patient exhales is filtered, so as to intercept impurities in the filter breathing bag, thereby preventing the endotracheal tube from being blocked.

[0058] Although the utility model has been described in detail above by means of general description, specific implementation methods and tests, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model based on the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A tracheal tube breathing filter, characterized in that: include: An air inlet channel (1) and an air outlet channel (4), wherein a one-way air inlet valve (2) is installed at the first end of the air inlet channel; A one-way air outlet valve (3) is installed at the first end of the air outlet passage (4), and the one-way air inlet valve (2) and the one-way air outlet valve (3) have opposite check directions; A filter screen (5) is installed on one side of the one-way air outlet valve (3) away from the first end of the air outlet channel (4); The filter screen (5) is sterile gauze; The air inlet channel and the air outlet channel are provided with movable external sleeves (7), the two ends of the external sleeves are respectively connected to the tracheal tube and the closed space in an airtight manner, and the two ends of the external sleeves are fixed with airtight components; The exhaled gas pushes open the one-way air inlet valve (2) and enters the enclosed space through the air inlet channel (1), and the one-way air outlet valve (3) of the air outlet channel (4) is closed in a non-return manner; the enclosed space is a breathing ball; The gas collected in the closed space passes through the gas outlet channel (4), and the gas pushes the one-way gas outlet valve (3) to open the gas outlet channel (4). A filter screen (5) is installed in the gas outlet channel (4) to filter the gas flowing out of the gas outlet channel (4).

2. The endotracheal tube breathing filter according to claim 1, characterized in that: The one-way air intake valve comprises a lightweight air intake sealing plate (21) and an air intake limiting plate (22); the lightweight air intake sealing plate (21) is movably installed in the air intake passage (1) and almost covers the air intake passage; The air intake limiting plate (22) is fixedly mounted on the inner wall of the air intake passage (1) and is mounted on the side of the air intake port (11), and can be mounted detachably from the light air intake sealing plate (21).

3. The endotracheal tube breathing filter according to claim 1, characterized in that: The one-way air outlet valve and the one-way air inlet valve are spring-type or gravity-type closed check valves.

4. The endotracheal tube breathing filter according to claim 1, characterized in that: A sewage discharge hole (6) is provided on the air outlet passage (4) on the side of the filter screen (5) away from the one-way air outlet valve (3).

5. The endotracheal tube breathing filter according to claim 1 or 4, characterized in that: The filter screen (5) is a cylindrical filter screen or a sheet filter screen.

6. The endotracheal tube breathing filter according to claim 1, characterized in that: The light transmittance of the air outlet channel (4) is 50-99%.

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