CN111358575A - Oral droplet collection system - Google Patents

Abstract

The invention is applicable to the technical field of collecting droplets and the like during oral diagnosis and treatment. The invention discloses an oral droplet collection device, comprising a collection head and a hollow support rod with one end supporting and fixing the collection head, the other end of the hollow support rod is communicated with an air inlet on a case, and the air outlet of the case is provided with There is a fan, a first cavity for receiving the first filter and a second cavity for the second filter are arranged between the air inlet and the exhaust port of the chassis, and between the first cavity and the second cavity There is a connection channel between them, the connection channel at the bottom of the first cavity is provided with a wind blocking mechanism for changing the direction of airflow and condensing water vapor, and a collection box is arranged under the wind blocking mechanism. Negative pressure is generated near the collecting head by the fan, and the air of the droplets exhaled by the patient is divided into filters, and the air before and after the first filter is sterilized, which can ensure the safety of the discharged air. The device effectively reduces the risk of diagnosis and treatment operations by medical personnel such as the oral cavity.

Description

Oral droplet collection system

technical field

The invention relates to the technical field of collection, and in particular to a collection system for collecting droplets and the like escaping from patients' breathing and the like when a diagnosis and treatment operation is performed on an oral cavity in a place.

Background technique

Nowadays, when oral patients are undergoing medical treatment, doctors usually need to observe and take samples of the affected part of the oral cavity, and the oral cavity is usually more sensitive. During the operation, the patient can be stimulated to produce sneezing and other phenomena, resulting in the formation of droplets and aerosols for a long time. The time is distributed around the medical clinic. When a patient has respiratory sensory diseases, such as pneumonia, influenza, etc., there are a large number of bacteria, viruses, pathogens, etc. in droplets and aerosols. Even medical staff with certain protection are at risk of being infected. How to timely and effectively collect and process the droplets and aerosols output by the patient's respiratory tract harmlessly and reduce the safety of the medical staff's environment has become an important task.

SUMMARY OF THE INVENTION

The main technical problem solved by the present invention is to provide an oral droplet collection system, which can collect in a timely, effective and harmless manner, reduce pollutants in diagnosis and treatment places, and reduce the risk of medical staff being infected.

In order to solve the above technical problems, the present invention provides an oral droplet collection system. The oral droplet collection system includes a collection head and a hollow support rod that supports and fixes the collection head at one end, and the other end of the hollow support rod is connected to the chassis. The air inlet of the case is connected with the air inlet, the air outlet of the case is provided with a fan controlled by the controller, and between the air inlet and the air outlet of the case, a first cavity and a second filter for receiving the first filter are arranged The second cavity is provided with a connecting channel between the first cavity and the second cavity, and the connecting channel at the bottom of the first cavity is provided with a wind-shielding mechanism for changing the direction of airflow and condensing water vapor. A collection box is arranged below the wind blocking mechanism, and a germicidal lamp controlled by a controller is arranged at the air inlet of the box and/or the connecting channel at the bottom of the two filters.

Further, the wind blocking mechanism includes a wind blocking plate for changing the wind direction and a condensation plate for condensing water vapor in the air, and a plurality of through holes are distributed on the condensation plate.

Further, a deflector is provided on one side of the wind deflector, and the deflector and the deflector form a narrow and long channel.

Further, the germicidal lamp includes an ultraviolet germicidal lamp.

Further, the bottom of the collection box is transparent, and the bottom of the transparent water collection box is provided with an ultraviolet germicidal lamp.

Further, the transparent material includes an acrylic plate.

Further, an ultraviolet germicidal lamp is provided on the guide plate.

Further, the collection head includes a collection hood.

Further, the oral droplet collection system further includes an electric refrigerator controlled by the controller, the electric refrigerator is conductively connected with the condensing plate.

Further, the air inlet of the box body is provided with a screw separation mechanism controlled by the controller.

Further, the helical separation mechanism includes a separator provided with a helical channel and a second fan for generating centrifugal force in the separator.

Further, the outlet of the spiral channel of the separator is provided with a liquid collecting baffle.

Further, the oral droplet collection system also opens the opening mechanism of the first filter and/or the second filter. The other end is connected with one end of the tilting rod, the other end of the tilting rod is in contact with the first filter and/or the second filter installed in place, and the end of the tilting rod connected with the pressing rod is provided with an elastic part for extending the pressing rod .

Further, a third filter is arranged in the hollow support rod.

Further, the bottom of the third filter can be set as an inclined plane, and a conical hollow structure is arranged at the bottom, and a plurality of through holes are distributed on the side surface of the conical hollow structure.

Further, a drainage groove is provided in the hollow support rod below the third filter.

The oral droplet collection system of the present invention includes a collection head and a hollow support rod with one end supporting and fixing the collection head, the other end of the hollow support rod is communicated with the air inlet on the case, and the air outlet of the case has a controlled A fan controlled by a controller, a first cavity for receiving the first filter and a second cavity for the second filter are arranged between the air inlet and the exhaust port of the chassis, and between the first cavity and the second There is a connection channel between the cavities, the connection channel at the bottom of the first cavity is provided with a wind blocking mechanism for changing the direction of airflow and condensing water vapor, and a collection box is located below the wind blocking mechanism. And/or the connecting channel at the bottom of the second filter is provided with a germicidal lamp controlled by the controller. The negative pressure is generated near the collecting head by the fan, the air of the patient exhaled droplets is divided into filters, and the gas before and after the first filter is sterilized, which can ensure the safety of the discharged air. The system can be widely used in oral and respiratory system diagnosis and treatment, such as dentistry, throat, etc., effectively reducing the operation risk of medical staff.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the drawings that are required in the description of the embodiments or the prior art. Obviously, the drawings in the description only show Therefore, it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related appendices can also be obtained according to these drawings. picture.

FIG. 1 is a schematic structural diagram of the first embodiment of the oral droplet collection system of the present invention.

FIG. 2 is a schematic diagram of the enlarged structure of the wind shielding mechanism.

3 is a schematic structural diagram of the second embodiment of the oral droplet collection system of the present invention.

FIG. 4 is a schematic structural diagram of the helical separation mechanism of FIG. 2 .

FIG. 5 is a schematic view of the structure of the separator of FIG. 2 along a radial cross section.

6 is a schematic structural diagram of the third embodiment of the oral droplet collection system

FIG. 7 is a schematic cross-sectional structural diagram of the third filter of FIG. 6 along a vertical direction.

The realization, functional characteristics and advantages of the present invention will be further described below in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The claims of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, but are all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, also belong to the protection scope of the present invention.

It should be understood that in the description of the present invention, all directional indicated terms, such as "up", "down", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship Based on the orientation or positional relationship shown in the accompanying drawings or the orientation or positional relationship that the product of the invention is usually placed in use, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated system or element must have A specific orientation, constructed and operated in a specific orientation. It is only used to explain the relative positional relationship, movement situation, etc. of the various components shown in the drawings. When the specific posture changes, the directional indication may also change accordingly.

In the present invention, unless otherwise expressly specified and limited, terms such as "installation", "arrangement", "connection", "fixation", "swivel connection" and other terms should be understood in a broad sense, for example, it may be a fixed connection, or It can be a detachable connection or an integrated body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction between the two elements. Unless otherwise clearly defined, those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In addition, the descriptions of ordinal numbers such as "first" and "second" in the present invention are only used to distinguish, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thereby, the features limited to "first" and "second" can be expressed or implied and at least one of the technical features. In the description of the present invention, "a plurality" means at least two, that is, two or more, unless otherwise expressly defined; "at least one" means one or one and more.

The controller of the present invention adopts the prior art, such as automatic control by the controller, and the control circuit of the controller, such as the single-chip microcomputer and its peripheral circuits, can be realized by simple programming by those skilled in the art, and the provision of power supply also belongs to the present invention. It is common knowledge in the field, and the present invention is mainly used to protect the mechanical structure, so the present invention will not explain the working principle and circuit connection relationship of the controller in detail.

As shown in FIGS. 1-2 , the present invention provides an embodiment of an oral droplet collection system.

The oral droplet collection system includes a collection head 3 and a hollow support rod 2 with one end supporting and fixing the collection head 3. The other end of the hollow support rod 2 is communicated with the air inlet on the case 1, and the exhaust port of the case 1 A fan 10 controlled by the controller is provided, and a first cavity 4 for receiving the first filter and a second cavity 7 for the second filter are arranged between the air inlet and the exhaust port of the chassis 1. The said A connecting channel 5 is provided between the first cavity 4 and the second cavity 7, and the connecting channel 5 at the bottom of the first cavity 4 is provided with a wind blocking mechanism 9 for changing the direction of airflow and condensing water vapor. A collection box 6 is arranged below 9, and the air inlet of the box 1 and/or the connecting channel 5 at the bottom of the second filter 7 is provided with a germicidal lamp 8 controlled by the controller.

Specifically, the collecting head 3 has a horn-shaped structure, and the two ends of the hollow support rod 2 are respectively connected with the collecting head 3 and the box body 1, wherein the box body 1 and the hollow support rod 2 are connected by flanges. When in use, the hollow support rod 2 can be rotated, so that the position of the collecting head 3 can be easily changed. The first filter and the second filter adopt the current technology, wherein the first filter 4 is mainly used to filter the generated liquid, such as water mist. The second filter 7 is mainly used to filter the aerosols, viruses, bacteria, etc. that are not filtered by the first filter 4 .

A germicidal lamp 8, such as an ultraviolet germicidal lamp, is arranged near the air inlet of the cabinet 1 to sterilize the mixture entering the first filter. The air outlet of the first cavity 4 is provided with a wind shielding mechanism 9 that can change the wind direction and the moisture in the gas to condense. The condensing plate 91 has a plurality of through holes 911 distributed on the condensing plate 91 , and the air baffle plate 92 and the condensing plate 91 are provided with a flow guiding gap. The wind deflector 9 can not only change the wind direction, but also guide the condensed water into the collecting box 6 .

In order to better collect the moisture in the gas to avoid affecting the second filter. The oral droplet collection system further includes an electric refrigerator (not shown in the drawings) controlled by the controller 12 , and the electric refrigerator is conductively connected to the condensing plate 91 . The electric refrigerator adopts the prior art, such as semiconductor refrigeration devices and the like.

One side of the wind deflector 92 is provided with a deflector 11, a narrow and long channel is formed between the deflector 11 and the wind deflector 92 to increase the flow rate, and the connecting channel 5 at the bottom of the second filter has a larger space, so that the The gas is dispersed through the narrow and long channel, so that the connecting channel arranged at the bottom of the second filter can be provided with an ultraviolet germicidal lamp to more fully sterilize the air flowing through.

The bottom of the collection box 6 is transparent, and the bottom of the transparent water collection box is provided with an ultraviolet germicidal lamp 8 . The transparent part is made of acrylic plate, and the collected liquid can be sterilized through the transparent acrylic plate by the ultraviolet germicidal lamp 8 .

During use, negative pressure is generated near the collecting head 3 by the fan 10, and the air of the patient exhaled droplets is divided into two filters, and the air before and after the first filter is sterilized, which can ensure the safety of the discharged air. At the same time, the liquid in the collection box 6 is also sterilized to ensure that the discharge is safe and complete, and the system can effectively reduce the risk of diagnosis and treatment operations by medical staff in the stomatology department.

As required, an ultraviolet germicidal lamp 8 may be provided on the baffle 9 . The case 1 is provided with casters, which is convenient for moving the case.

According to requirements, the oral droplet collection system also opens an opening mechanism for the first filter and/or the second filter. The opening mechanism includes a pressure rod with one end located outside the box body and a rotatable tilting rod. The pressure rod has another side. One end is connected with one end of the tilting rod, the other end of the tilting rod is in contact with the first filter and/or the second filter installed in place, and the end of the tilting rod connected with the pressing rod is provided with an elastic part for extending the pressing rod. The elastic member includes a spring or an elastic sheet. When in use, by pressing the pressure rod, the pressure rod will press down the tilting rod, and the other end will be lifted up to make the first filter and/or the second filter protrude toward the other end, so that the first filter or the second filter can be easily removed. The second filter is taken out to achieve the purpose of convenient replacement.

As shown in FIGS. 3-5 , the present invention further proposes a second embodiment based on the first embodiment.

The air inlet of the box body 1 is provided with a helical separation mechanism 13 controlled by the controller 8. The helical separation mechanism 13 includes a separator 132 of a helical channel and a second fan 131 that generates centrifugal force in the separator 132. The second fan 131 generates a large centrifugal force for the spiral channel 1321 on the separator 132, so that the mixture passing through the spiral channel 1321 is polarized and separated.

Under the action of the second fan 131, a large centrifugal force is generated when entering the spiral channel 1321 of the separator, and the liquid with large mass is separated from the air by centrifugal action, so that the liquid can move along the outer side of the spiral channel 1321 to realize separation. According to needs, a liquid collection baffle 1322 is provided at the outlet of the spiral channel 1321, and the liquid collection baffle 1322 forms a gap between the outer side of the spiral channel 1321 outlet and the spiral channel 1321. When the liquid moves to the liquid collection baffle 1322, Negative pressure is formed at the gap, the liquid enters the gap, and the separated liquid is drained to the water collecting box 3 by appropriately setting the drainage plate or groove, thus reducing the liquid entering the first filter 4, which can be used along the length of the first filter 4 life. Other structures are the same as those of the first embodiment, and the working principle and the effect achieved are also the same, and will not be repeated here.

Another embodiment is not proposed based on the first embodiment, as shown in FIGS. 6 and 7 .

The hollow support rod 2 is provided with a third filter 14 for further filtering. The third filter is used to filter the liquid entering the hollow support rod. The bottom of the third filter 14 can be set as an inclined plane, and a conical hollow structure 142 is arranged at the bottom. The side of the conical hollow structure 142 is distributed with a plurality of through holes (not marked in the drawings), which is convenient for filtering. The air enters the next filter mechanism, which can also guide the liquid to the edge.

Since the conical hollow structure 142 can guide the liquid to the edge respectively during filtering, and the edge has a bottommost point, during normal installation, the third filter 14 is specially designed, and its bottom has only one bottom point and one bottom point. The highest point, under the action of gravity, naturally converges to a point, which is convenient for drainage.

As required, a drainage groove 15 is provided in the hollow support rod 2 under the third filter 14 to drain the liquid collected by the third filter 14 into the collection box 6 .

The hollow support rod 2 provided with the third filter 14 can be provided with a transparent material for easy observation. The structures and functions of other descriptions are the same as those described above, and are not repeated here. Of course, this embodiment can also be implemented in combination with the second embodiment as required.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some technical features thereof are equivalently replaced, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (11)

1. Oral cavity droplet collection device, its characterized in that supports fixed cavity bracing piece including collecting head and one end to this collecting head, this cavity bracing piece other end and the air inlet intercommunication on the quick-witted case, the gas vent of this quick-witted case is equipped with the fan that receives controller control, is equipped with the first cavity of accomodating first filter and the second cavity of second filter between the air inlet of quick-witted case and gas vent be equipped with interface channel between first cavity and the second cavity, the interface channel who is located first cavity bottom is equipped with the mechanism that keeps out the wind that changes air current direction and condensation aqueous vapor, is located this mechanism below that keeps out the wind and is equipped with the collection box, the box air inlet and/or the interface channel who is located the second filter bottom are equipped with the bactericidal lamp that receives controller control.

2. The oral droplet collection device of claim 1, wherein the wind shielding mechanism comprises a wind shielding plate for changing the wind direction and a condensation plate for condensing moisture in the air, and a plurality of through holes are distributed on the condensation plate.

3. The oral droplet collection apparatus of claim 2 wherein the baffle is provided with a baffle on one side of the baffle, the baffle and baffle forming an elongate channel.

4. The oral spray collecting device of claim 1, wherein a third filter is disposed in the hollow support rod, the bottom of the third filter can be a slant, and a conical hollow structure is disposed at the bottom, and a plurality of through holes are distributed on the side of the conical hollow structure.

5. The oral droplet collection apparatus of claim 1 wherein a drainage channel is provided in the hollow support rod below the third filter.

6. The oral droplet collection device of claim 1, wherein the bottom of the collection box is transparent, and the transparent water collection box is provided with an ultraviolet germicidal lamp at the bottom.

7. The oral droplet collection apparatus of claim 1, wherein the air inlet of the housing is provided with a screw separation mechanism controlled by a controller.

8. The oral droplet collection apparatus of claim 7 wherein the spiral separation mechanism comprises a separator having a spiral channel and a second fan that generates centrifugal force in the separator.

9. The oral droplet collection apparatus of claim 6 or 7 wherein the spiral passage outlet of the separator is provided with a liquid collection flap.

10. The oral droplet collection device of claim 1, further comprising an electric refrigerator controlled by the controller, the electric refrigerator being conductively connected to the cold plate.

11. The oral droplet collecting apparatus according to claim 1, wherein the oral droplet collecting apparatus further opens an opening mechanism of the first filter and/or the second filter, the opening mechanism includes a pressing rod having one end located outside the housing and a rotatable lever, the other end of the pressing rod is connected to one end of the lever, the other end of the lever is in contact with the first filter and/or the second filter mounted in place, and an elastic member for extending the pressing rod is provided at one end of the lever connected to the pressing rod.

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