CN213665151U - Biological aerosol vacuum instrument - Google Patents

Abstract

The utility model provides a biological aerosol vacuum instrument (BVA), including the device main part, the inside vacuum apparatus that is equipped with of device main part is equipped with first air inlet and vent in the device main part, is provided with filtration membrane in the vent, and filtration membrane includes the three-layer at least. A bioaerosol vacuum gauge that can be easily attached to laryngoscopes of various types and sizes without affecting the functionality of the laryngoscope itself, but with added protection to the laryngoscope user; BVA can absorb biological aerosol in and around the oral cavity of a patient, so that the risk of virus infection of medical staff is reduced; BVAs can be applied in oxygen masks, reducing the risk of infection for medical staff or the family of the patient.

Description

Biological aerosol vacuum instrument

Technical Field

The utility model relates to the technical field of medical auxiliary equipment, especially, relate to a bioaerosol vacuum instrument that is used for medical personnel personal protection, reduces bioaerosol and spreads risk.

Background

Patients with the new coronavirus or other respiratory infections have predominantly bilateral pneumonia and acute respiratory distress syndrome, and many patients are critically ill requiring endotracheal intubation. An endotracheal tube is a medical procedure, which is inserted into the trachea through the mouth and throat of a patient. Typically, during intubation, the face of the medical professional performing the procedure is typically about one foot away from the patient's mouth. The viral and/or bacterial load in the patient's airways can be very high and highly contagious, which poses a significant risk to the health care professional performing the intubation.

The safety problems of such medical personnel during the course of epidemic prevention face enormous challenges far beyond expectations, which are unavoidable, and there is a need to rapidly provide solutions to protect and reinforce the health of the medical personnel.

Disclosure of Invention

An object of the utility model is to provide a biological aerosol Vacuum apparatus (Bioaerosol Vacuum apparatus, BVA for short) to solve the problem that proposes among the above-mentioned background art.

In order to achieve the purpose, the utility model adopts the technical scheme that the bioaerosol vacuum instrument is used for being connected to laryngoscopes of different types and sizes, not only can be connected with a traditional laryngoscope, but also can be connected with a novel video laryngoscope. The device comprises a device body, wherein a sticky adhesive plaster is arranged on the device body, the device body is connected to the bottom of a laryngoscope or the side surface of the laryngoscope through the sticky adhesive plaster, the adhesive plaster when connected to the bottom of the laryngoscope is slightly different from the adhesive plaster connected to the side surface of the laryngoscope, and the adhesive plaster connected to the bottom of the laryngoscope is generally a flat adhesive plaster sheet; the adhesive plaster attached to the side of the laryngoscope generally has a curvature on one side and a flat on the other. Such a design facilitates secure fixation of the device to the laryngoscope. When the device is connected to the laryngoscope, the function of the laryngoscope can not be influenced, but the protection to a laryngoscope user is increased.

Further, the BVA device comprises a vacuum device inside the device body, which in operation draws air in from the first air inlet and out of the vent, and a first air inlet and a vent on the device body, which may be a worm fan driven by a motor. Preferably, the device body has a cylindrical shape, and the plurality of vents (three or more) are provided in a circumferential array on the device body.

Furthermore, the first air inlet is used for being connected with a first suction pipe, the first suction pipe comprises a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe are respectively provided with a plurality of suction holes, the first branch pipe can be fixed on a blade on a laryngoscope through an elastic thread, and when the laryngoscope is used, the first branch pipe is placed into the oral cavity of a patient along with the blade on the laryngoscope for absorbing air in the oral cavity of the patient; the second branch pipe is placed outside the oral cavity of the patient and used for absorbing air around the oral cavity of the patient. As a preferred technical scheme, three different first suction tubes are provided, which are mainly different from a second branch tube, wherein the second branch tube can be in a T shape, an annular shape and a linear shape, the T-shaped second branch tube can be clamped by two sides of an oral cavity or an upper lip and a lower lip to prevent the second branch tube from shaking, and the T-shaped second branch tube can be fixed on a laryngoscope, particularly a handle of the laryngoscope; the annular second branch pipe can be placed on the mouth and can cover the area around the mouth in all aspects; the linear second branch pipe is easy to manufacture and low in production cost.

Further, be provided with filtration membrane in the vent, filtration membrane is three layer construction, including first spunbond layer, melt-blown layer, second spunbond layer, can prevent to follow in the patient's mouth along with the air is inhaled the inside droplet of device and can't follow the downthehole outflow of vent, has avoided the virus promptly to get into in the air. As a preferable technical solution, several layers may be provided in the melt-blown layer, for example, two layers or three layers may be provided, and the provision of the melt-blown layer contributes to the improvement of the blocking efficiency of bacteria and viruses, but it is also preferable that the filtration membrane has a three-layer structure because the provision of the melt-blown layer makes it difficult for air to pass through the filtration membrane in the vent.

Further, a battery groove is formed in the device body and used for installing a battery, and in order to reduce the overall size of the device body, the battery is preferably a button battery. Further, still be equipped with the battery tray in the battery jar, the battery tray is used for placing the battery, is equipped with two fixed ears on the battery tray, through pulling fixed ear, can realize that the battery is installed in the battery jar or takes out from the battery jar. As a preferred solution, the battery can also be mounted in the battery container by other means, such as: the battery groove is internally provided with a spring for pushing the battery out, the spring is compressed when the battery is put in, the battery is fixed in the battery groove by using a plug, and when the battery is taken out, a part of the battery can be popped out under the action of the spring by removing the plug. In yet another mode, a traction sheet is arranged in the battery jar, one end of the traction sheet is fixed to the battery jar, the other end of the traction sheet extends out of the battery jar, when the battery is placed in the battery jar, the traction sheet enters the battery jar along with the battery, but a part of the traction sheet is always exposed out of the battery jar, when the battery is taken out, the traction sheet only needs to be pulled outwards to drive the battery to come out of the battery jar, and the mode is simple to manufacture and low in cost.

Further, be equipped with the mouth that charges on the device main part, the mouth that charges can be charged by external charging wire. The laryngoscope includes blade and handle, is equipped with camera or bulb on the blade, and the handle and the blade of some laryngoscopes are detachable, are equipped with the electrical contact in the equipment position of handle and blade for camera or bulb power supply, consequently in some other modes, through connecting a wire between charging mouth and the electrical contact, also can supply power for this device (BVA).

Furthermore, a section of sponge is arranged in the first suction pipe, and the sponge can be in a strip shape and is arranged on the inner wall of the first suction pipe; the sponge can be tubular and is tightly connected with the inner wall of the first suction pipe. The sponge is mainly arranged so that: the small liquid drops sucked into the first suction pipe are remained in the first suction pipe through the sponge, so that the phenomenon that the operation of the vacuum device is influenced because a large amount of liquid enters the device main body is avoided. In the intubate in-process, probably produce a large amount of saliva in patient's the oral cavity, need collocate at this time and use some other big suction device, for example the sputum aspirator, the sputum aspirator can the disect insertion in the oral cavity, also can be through setting up an interface that is used for connecting the sputum aspirator on first suction tube again, let the interface be connected with the sputum aspirator, like this, the sputum aspirator can be through the saliva of suction tube absorption in the oral cavity. If more than a certain amount of liquid is sucked into the first suction tube, the first suction tube is provided with a branch port, which is generally sealed and is opened only when the syringe is connected. The first sub-tube and the second sub-tube on the first suction tube are sealed, and the syringe is pulled, so that the liquid in the first suction tube can be pumped out. There are many methods of sealing the first branch tube and the second branch tube, and the simplest method is to clamp the first suction tube at a branching position of the first suction tube, which is a position where the first suction tube is divided into the first branch tube and the second branch tube.

Further, in order to ensure the safety of the device, the device is disposable, and the filtering membrane and the first suction pipe in the device are disposable. If the medical staff decides to continue to use the BVA device of a certain patient for him, the suction tube and the filter membrane must be replaced, and the replaced suction tube and filter membrane must be discarded and cannot be reused.

Further, the BVA device can be applied to an oxygen mask, specifically, a second air inlet is arranged on the device body, when in use, the first air inlet is connected to the inside of the oxygen mask through a second suction pipe, the second air inlet is connected to the position where the oxygen mask is in contact with the face of a patient through a third suction pipe, the second suction pipe is used for absorbing gas exhaled by the patient, and the third suction pipe is used for absorbing gas overflowed from a gap between the oxygen mask and the face of the patient. Furthermore, the third suction pipe is annular, suction holes are uniformly arranged on the third suction pipe, and the suction holes can absorb overflowed gas in all directions. The second air inlet is closed when the second air inlet is not in use. When the BVA device is used in an oxygen mask, it may alternatively be replaced by a first air inlet connected to a first inhalation tube: the first air inlet is connected with the second suction pipe, and the second air inlet is connected with the third suction pipe. The second air inlet is now in a closed state. The first suction pipe is selected from the first suction pipes with the annular second branch pipe.

To sum up, the beneficial effects of the utility model are that: the biological aerosol vacuum gauge (BVA) provided by the utility model can be easily connected to laryngoscopes of various types and sizes, the functions of the laryngoscope can not be influenced, but the protection to the laryngoscope user is increased; BVA can absorb biological aerosol in and around the oral cavity of a patient, so that the risk of virus infection of medical staff is reduced; BVAs can be applied in oxygen masks, reducing the risk of infection for medical staff or the family of the patient.

Drawings

Fig. 1 is a schematic view of a connection of laryngoscope to BVA;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of another connection of the laryngoscope to the BVA;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic structural view of BVA;

FIG. 6 is a schematic view of the BVA when the battery is installed;

FIG. 7 is a schematic view of the structure of the filter membrane;

FIG. 8 is a schematic view of the location of electrical contacts within the laryngoscope;

FIG. 9 is a schematic view of a BVA being charged via an external charging wire;

FIG. 10 is a schematic view of a BVA when installed with a first suction tube;

FIG. 11 is a schematic view of the first suction tube being secured to the laryngoscope;

FIG. 12 is a schematic view of the operation of a laryngoscope with a BVA installed;

FIG. 13 is a schematic illustration of an oxygen mask with BVA installed;

FIG. 14 is a schematic view of the operation of the syringe for aspirating a liquid in the first aspiration line;

fig. 15 is a schematic view of the internal structure of the first suction pipe.

Detailed Description

Embodiments of the invention will be described in further detail with reference to the drawings, it being understood that the examples are illustrative only and should not be taken as limiting the invention, and that all of the features disclosed in the examples or all of the steps in any method or process disclosed herein can be combined in any way, except for mutually exclusive features and/or steps.

Endotracheal intubation is typically performed using a laryngoscope, and the present embodiment provides a bioaerosol vacuum for attachment to laryngoscopes of different types and sizes, both traditional and newer video laryngoscopes. Specifically, referring to fig. 1-4, a bioaerosol vacuum instrument (BVA) includes a device body 10 on which an adhesive plaster 11 is disposed, the device body 10 being attached to the bottom of the laryngoscope 20 or the side of the laryngoscope 20 via the adhesive plaster 11, the plaster attached to the bottom of the laryngoscope 20 being slightly different from the plaster attached to the side of the laryngoscope 20, the plaster attached to the bottom of the laryngoscope 20 being a generally flat plaster sheet; the adhesive tape attached to the side of the laryngoscope 20 is generally curved on one side and flat on the other. Such a design facilitates secure attachment of the device to the laryngoscope 20. When the device is connected to the laryngoscope, the function of the laryngoscope can not be influenced, but the protection to a laryngoscope user is increased.

The BVA device includes a vacuum device, which may be a worm fan driven by a motor, located inside the device body 10, and a first air inlet 12 and a vent 13 located on the device body 10, the vacuum device operating to draw air in from the first air inlet 12 and exhaust from the vent 13. Preferably, the apparatus body 10 has a cylindrical shape, and a plurality of (three or more) ventilation openings 13 are provided in a circumferential array on the apparatus body 10.

Referring to fig. 10-12, the first air inlet 12 is used to connect to a first suction tube 30, the first suction tube 30 includes a first branch tube 31 and a second branch tube 32, the first branch tube 31 and the second branch tube 32 are provided with a plurality of suction holes 33, the first branch tube 31 can be fixed on the blade 21 of the laryngoscope 20 through an elastic thread 34, when in use, the first branch tube 31 is put into the oral cavity of a patient along with the blade 21 of the laryngoscope 20 for absorbing air in the oral cavity of the patient; the second branch tube 32 is placed outside the patient's mouth for absorbing air around the patient's mouth. In fig. 10, three different first suction tubes 30 are shown, the main difference being the difference of the second branch tube 32, the second branch tube 32 can be T-shaped, circular, straight, the T-shaped second branch tube 32 can be clipped by the mouth on both sides, or upper and lower lips, to prevent the second branch tube 32 from shaking, the T-shaped second branch tube 32 can be fixed to the laryngoscope 20, especially to the handle of the laryngoscope 20; the second branch pipe 32 can be placed on the mouth and can cover the area around the mouth in all aspects; the second straight branch pipe 32 is easy to manufacture and low in production cost.

Referring to fig. 5 and 7, a filtering membrane 15 is arranged in the vent 13, the filtering membrane 15 is a three-layer structure including a first spun-bonded layer 16, a melt-blown layer 17 and a second spun-bonded layer 18, and similar to the structures of a medical surgical mask and an N95 mask, small droplets sucked into the device from the mouth of a patient along with air can be prevented from flowing out of the vent 13, that is, viruses are prevented from entering the air. In some other embodiments, the meltblown layer 17 may be provided with several more layers, for example, two meltblown layers 17 or three meltblown layers 17, and the placement of the meltblown layers 17 helps to improve the efficiency of blocking bacteria and viruses, but with the placement of the meltblown layers 17, it is difficult for air to pass through the filter membrane 15 in the vent 13, and therefore it is preferable that the filter membrane has a three-layer structure.

Preferably, referring to fig. 5 and 6, a battery case 40 is provided in the device body 10, the battery case 40 is used for mounting a battery 41, and the battery 41 is preferably a button battery in order to reduce the overall volume of the device body 10. Furthermore, a battery holder 42 is further disposed in the battery container 40, the battery holder 42 is used for placing the battery 41, two fixing lugs 43 are disposed on the battery holder 42, and the battery 41 can be installed in the battery container 40 or taken out of the battery container 40 by pulling the fixing lugs 43. In some other embodiments, the battery 41 can be mounted in the battery well 40 by other means, such as: the battery groove is internally provided with a spring for pushing the battery out, the spring is compressed when the battery is put in, the battery is fixed in the battery groove by using a plug, and when the battery is taken out, a part of the battery can be popped out under the action of the spring by removing the plug. In yet another mode, a traction sheet is arranged in the battery jar, one end of the traction sheet is fixed to the battery jar, the other end of the traction sheet extends out of the battery jar, when the battery is placed in the battery jar, the traction sheet enters the battery jar along with the battery, but a part of the traction sheet is always exposed out of the battery jar, when the battery is taken out, the traction sheet only needs to be pulled outwards to drive the battery to come out of the battery jar, and the mode is simple to manufacture and low in cost.

Preferably, referring to fig. 9, the device body 10 is provided with a charging port 44, and the charging port 44 can be charged by an external charging wire 45. Referring to fig. 8, the laryngoscope 20 comprises a blade 21 and a handle 22, the blade 21 being provided with a camera or light bulb 23, the handle 22 of some laryngoscopes being detachable from the blade 21, and electrical contacts 24 being provided at the assembly of the handle 22 and blade 21 for supplying power to the camera or light bulb 23, so that in some other ways the device (BVA) can also be supplied by connecting a wire between the charging port 44 and the electrical contacts 24.

Preferably, referring to fig. 15, a section of sponge 35 is disposed in the first suction pipe 30, and the sponge 35 may be in the shape of a strip and is disposed on the inner wall of the first suction pipe 30; the sponge 35 may have a tubular shape, and the sponge 35 is tightly connected to the inner wall of the first suction pipe 30. The sponge 35 is mainly provided for: the small liquid drops sucked into the first suction pipe 30 are retained in the first suction pipe 30 by the sponge 35, and the large liquid amount is prevented from entering the device main body 10 to affect the operation of the vacuum device. In the intubate process, probably produce a large amount of saliva in patient's the oral cavity, need to collocate at this time and use some other big suction device, for example the sputum aspirator, the sputum aspirator can the disect insertion in the oral cavity, also can be through setting up an interface that is used for connecting the sputum aspirator on first suction tube 30 again, let the interface be connected with the sputum aspirator, like this, the sputum aspirator can be through the saliva of suction tube 30 absorption in the oral cavity. If more than a certain amount of liquid is sucked into the first suction pipe 30, referring to fig. 14, the first suction pipe 30 is provided with the branch port 36, and the branch port 36 is generally sealed, and the branch port 36 is opened only when the syringe 50 is attached. The liquid in the first suction tube 30 can be drawn out by sealing the first and second branch tubes 31 and 32 of the first suction tube 30 and pulling the syringe 50. There are many methods of sealing the first and second branch tubes 31 and 32, and the simplest method is to clamp the first suction tube 30 at the branching position where the first suction tube 30 is divided into the first and second branch tubes 31 and 32 by a clamp.

Preferably, the device is disposable for the safety of use, and the filter membrane 15 and the first suction pipe 30 are disposable. If the health care professional decides to continue using the BVA device of a patient himself, the suction tube 30 and the filter membrane 15 must be replaced, and the replaced suction tube 30 and filter membrane 15 must be discarded and not reused.

Preferably, referring to fig. 5 and 13, the BVA device can also be applied to an oxygen mask 60, and specifically, the device body 10 is provided with a second air inlet 19, when in use, the first air inlet 12 is connected to the inside of the oxygen mask 60 through a second inhalation tube 37, the second air inlet 19 is connected to a position where the oxygen mask 60 contacts the face of the patient through a third inhalation tube 38, the second inhalation tube 37 is used for absorbing the gas exhaled by the patient, and the third inhalation tube 38 is used for absorbing the gas overflowing from a gap between the oxygen mask 60 and the face of the patient, such that the device can prevent medical staff or family members from being infected. Further, the third suction pipe 38 has a ring shape, and suction holes 33 are uniformly formed therein, and the suction holes 33 can perform all-directional absorption of the overflowed gas. When the second air inlet 19 is not in use, the second air inlet 19 is closed. In the case of BVA devices for use in oxygen masks 60, the above could alternatively be replaced by the form of the first air inlet 12 connected to the first suction tube 30: the first air inlet 12 is connected to a second suction pipe 37, and the second air inlet 19 is connected to a third suction pipe 38. The second air inlet 19 is now in a closed state. The first suction pipe 30 is selected from the first suction pipes 30 having the annular second branch pipe 32.

Preferably, referring to fig. 5, the first air inlet 12 is located at the center of the upper end of the apparatus body 10, and the second air inlet 19 has an opening size smaller than that of the first air inlet 12. More specifically, the opening of the first air inlet 12 is larger than the openings of the two second air inlets 19.

The above description is only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative work should be covered within the protection scope of the present invention, and therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (10)

1. The utility model provides a biological aerosol vacuum apparatus which characterized in that, includes the device main part, and the inside vacuum apparatus that is equipped with of device main part is equipped with first air inlet and vent in the device main part, is provided with filtration membrane in the vent, and filtration membrane includes the three-layer at least.

2. The bioaerosol vacuum instrument as claimed in claim 1, wherein the filter membrane has a three-layer structure, and comprises a first spun-bonded layer, a melt-blown layer and a second spun-bonded layer.

3. The bioaerosol vacuum instrument as claimed in claim 1, wherein the device body is provided with an adhesive plaster for connecting with a laryngoscope, and the device body is connected with the bottom of the laryngoscope or the side of the laryngoscope.

4. The bioaerosol vacuum instrument of claim 1, wherein the first air inlet is connected to a first suction tube, and a sponge is disposed in the first suction tube.

5. The bioaerosol vacuum instrument of claim 4, wherein the first suction tube is provided with a branch port for connecting to a syringe.

6. The bioaerosol vacuum instrument as claimed in claim 4, wherein the first suction tube comprises a first branch tube and a second branch tube, and the first branch tube and the second branch tube are provided with suction holes.

7. The bioaerosol vacuum instrument of claim 6, wherein the second manifold is T-shaped, circular or linear.

8. A bioaerosol vacuum gauge as claimed in claim 3 or claim 6, wherein the laryngoscope comprises a blade and a handle, the first tube being connected to the blade.

9. The bioaerosol vacuum gauge of claim 8, wherein the second manifold is connected to the handle.

10. The bioaerosol vacuum instrument as claimed in claim 1, wherein a battery jar is arranged in the device body, the battery jar is used for installing a battery, and the battery is a button battery.

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