Aerosol negative pressure catcher for oral diagnosis and treatment

Abstract

The invention discloses an aerosol negative pressure catcher for oral diagnosis and treatment, and belongs to the technical field of medical instruments. The trapper comprises a negative suction disc, a negative suction pipe and a clamping piece. The negative suction cup is arranged on the left face of the patient and close to the mouth periphery of the patient to form a negative pressure capture area, and aerosol generated by oral diagnosis and treatment is captured from the source. And the other end of the negative suction pipe is connected with an external negative pressure source (such as a negative pressure system or an independent negative pressure machine of the oral cavity diagnosis and treatment chair). And the clamping piece is placed at the connecting part of the head support and the back support of the comprehensive oral treatment chair and is used for fixing the negative suction tube and supporting the negative suction disc simultaneously. The oral cavity diagnosis and treatment aerosol capturing method has the advantages that aerosol diffusion can be effectively prevented, the doctor-patient cross infection risk is reduced in diagnosis and treatment of potential respiratory system infectious diseases and other infectious disease patients, and the oral cavity diagnosis and treatment aerosol capturing device is simple in structure, low in cost, easy to be used in cooperation with existing equipment and the like.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and particularly relates to an oral diagnosis and treatment aerosol negative pressure trap. BACKGROUND

[0002] A large amount of aerosol is generated in the process of oral diagnosis and treatment, and the aerosol often carries a large amount of pathogenic bacteria in the patient's oral cavity, which poses a serious danger to medical personnel and pollutes the air in the clinic. At present, the aerosol in the process of oral diagnosis and treatment is mainly solved from two aspects.

[0003] Aspect one: necessary air disinfection is carried out for the diagnosis and treatment environment, such as ultraviolet air disinfection, ozone disinfection, plasma disinfection and the like. However, this method has great hysteresis, and the aerosol carrying bacteria has been diffused to the entire clinic when disinfection, and the doctor has also been in this harmful environment.

[0004] Aspect two: medical personnel strengthen their own protection by wearing masks, protective face screens and the like, but this protection has great limitations, because the aerosol has strong flowability in the air, and these protection tools can only block part of the aerosol, and the area where the medical personnel have not been protected is easily polluted by the aerosol. SUMMARY

[0005] The application aims to provide an oral diagnosis and treatment aerosol negative pressure trap to solve the above problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme: An oral diagnosis and treatment aerosol negative pressure trap, comprising a negative suction disc, a negative suction pipe and a clamping piece, the negative suction disc is used for trapping the aerosol generated around the patient's mouth in the process of oral diagnosis and treatment, one end of the negative suction pipe is communicated with the negative suction disc, and the other end is detachably connected with an external negative pressure system interface through a joint, the negative suction disc is provided with negative pressure power required for aerosol trapping by the negative pressure system, and the clamping piece is used for clamping and fixing the negative suction pipe.

[0007] Further, the external negative pressure system is a negative pressure system of an oral diagnosis and treatment chair or an independent negative pressure machine.

[0008] Further, the negative suction disc is of a planar structure, the negative suction disc of the planar structure is fixed on one side of a diagnosis and treatment area and is aligned with the patient's cheek.

[0009] Further, the negative suction disc is of a ring structure, and the negative suction disc of the ring structure is arranged around the patient's mouth.

[0010] Further, a melt-blown cloth is detachably installed at the port of the negative suction disc, and the melt-blown cloth preliminarily filters the inhaled aerosol.

[0011] Further, the inside of the negative suction disc is detachably installed with an air guide structure.

[0012] Further, the negative suction tube is made of PVC material and contains a copper wire fixed in the middle to facilitate the adjustment and maintenance of the negative suction disc position.

[0013] Further, the joint at the other end of the negative suction tube is a quick plug-in joint that is compatible with the interface of the external negative pressure system.

[0014] Further, the clamping piece fixes the negative suction tube at the connection between the headrest and the backrest of the dental treatment chair, so that the negative suction disc is close to the patient's mouth and does not affect the treatment operation.

[0015] Further, the clamping piece is a spring clamp.

[0016] Beneficial effects: The oral treatment aerosol negative pressure trap, through the cooperation of the negative suction disc, the negative suction tube and the clamping piece, can directly capture in real time at the source of aerosol generation (around the patient's mouth), avoid the spread of aerosol to the clinic space, and fundamentally eliminate the exposure risk of medical personnel during treatment; and the overall structure is simple, low in cost, and easy to use with existing equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The three-dimensional structure schematic diagram provided for the embodiments of the present application; Figure 2 The three-dimensional structure schematic diagram provided for the embodiments of the present application; Figure 1 The structure schematic diagram of the negative suction disc when the melt-blown cloth is opened; Figure 3 The three-dimensional structure schematic diagram provided for the embodiments of the present application; Figure 1 The internal structure schematic diagram of the negative suction disc; Figure 4 The three-dimensional structure schematic diagram provided for the embodiments of the present application; Figure 3 The three-dimensional structure schematic diagram of the air guide structure.

[0018] BRIEF DESCRIPTION OF DRAWINGS: 1-negative suction disc, 2-negative suction tube, 3-clamping piece, 4-melt-blown cloth, 5-air guide structure. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be briefly introduced below in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following description of the drawings structure is only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application.

[0020] Embodiment: like Figure 1 and Figure 2 As shown, this embodiment provides a negative pressure aerosol capture device for oral treatment, including a negative suction cup 1, a negative suction tube 2, and a clamping member 3. The negative suction cup 1 is used to capture aerosols generated around the patient's mouth during oral treatment. One end of the negative suction tube 2 is connected to the negative suction cup 1, and the other end is detachably connected to an external negative pressure system via a connector. The external negative pressure system provides the negative pressure power required for aerosol capture to the negative suction cup 1. The clamping member 3 is used to fix the negative suction tube 2 to the oral treatment chair.

[0021] The external negative pressure system is either the negative pressure system interface that comes with the dental chair (which can be a strong suction tube) or the negative pressure system of a standalone negative pressure machine.

[0022] The negative suction cup 1 is the core actuator for aerosol capture, used to directly target the patient's perioral area during oral treatment to capture the generated aerosols.

[0023] Depending on the needs of the diagnostic and treatment scenario, the negative suction cup 1 can adopt two structural designs: Planar structure: The negative suction cup 1 of this structure is fixed on one side of the treatment area. When in use, it is aligned with the patient's cheek. It is suitable for treatment operations that generate concentrated aerosols in one direction (such as unilateral tooth restoration).

[0024] Ring structure: The negative suction cup 1 of this structure can be set around the patient's mouth, which can fully cover the 360° area around the patient's mouth. It is suitable for diagnostic and treatment operations with multi-directional diffusion of aerosols (such as ultrasonic scaling and full-mouth periodontal treatment).

[0025] like Figure 2 and Figure 3 As shown, to improve aerosol filtration efficiency and facilitate maintenance, a meltblown fabric 4 is detachably installed at the port of the negative suction cup 1. The meltblown fabric 4 performs preliminary filtration of the inhaled aerosol, reducing contamination of the subsequent negative pressure system and further ensuring the safety of the treatment environment. Furthermore, medical staff can replace the meltblown fabric periodically.

[0026] Specifically, the meltblown fabric 4 can be detached through a snap-fit ​​structure. The edge of the negative suction cup 1 port is provided with a protruding elastic snap-fit. The edge of the meltblown fabric 4 is prefabricated with a perforated rigid plastic frame. The hole diameter of the frame matches the snap-fit. Pressing it can fix it, and bending the snap-fit ​​can disassemble it.

[0027] In the specific implementation process, it is worth noting that if the dental chair is equipped with cleaning and disinfection equipment during actual use, meltblown fabric can be omitted.

[0028] like Figure 2 , Figure 3 and Figure 4As shown, an airflow guiding structure 5 is provided inside the negative suction cup 1. The airflow guiding structure 5 is designed to further optimize airflow stability and the support effect of the meltblown fabric 4.

[0029] Specifically, the airflow guiding structure 5 is a grid-like component with a four-sided frame. The frame is detachably connected to the inner wall at the port of the negative suction cup 1 via an elastic buckle. The inside of the component consists of several parallel raised "ridges", with recessed "grooves" formed between the ridges. The overall shape is similar to a "grid plate with parallel stripes". The parallel ridges support the meltblown fabric 4, while the recessed grooves guide the airflow direction.

[0030] The airflow guiding structure 5 is installed on the inner side of the meltblown fabric 4 (on the port side of the negative suction cup 1). Its convex ridges directly contact the inner surface of the meltblown fabric 4. When the negative pressure system is activated, the meltblown fabric tends to concave inward due to the airflow pressure. At this time, the convex ridges can provide uniform support for the meltblown fabric, preventing it from being blocked by excessive deformation and sticking tightly to the inner wall of the negative suction cup 1. After the aerosol around the patient's mouth is filtered by the meltblown fabric 4, the airflow will naturally flow into the guiding groove, reducing local eddies caused by the wrinkles or sticking to the wall of the meltblown fabric, ensuring that the airflow enters the negative suction tube 2 stably, and improving the overall capture efficiency.

[0031] If the dental chair comes with its own cleaning and disinfection equipment, the meltblown fabric 4 can be directly removed (simply by bending its fixing buckle). At this time, the air guide structure 5 can still be retained independently, guiding airflow through its grid-like structure without affecting the negative pressure capture function. When it is necessary to restore the filter, the meltblown fabric can be reinstalled. The buckle design of the two achieves the flexibility of independent disassembly and combination.

[0032] The negative suction tube 2 is a connecting and power transmission component. One end connects to the negative suction cup, and the other end is detachably connected to an external negative pressure system via a connector, providing the negative pressure power required for aerosol capture by the negative suction cup. The negative suction tube 2 is made of PVC material and contains a copper wire in the middle for fixation, facilitating adjustment and maintenance of the position of the negative suction cup 1. The PVC material ensures the flexibility of the tube, making it easy to adjust the angle according to the treatment location; the copper wire plays a shaping role, maintaining the stability of the position of the negative suction cup 1 after adjustment and preventing the capture effect from being affected by the movement of the tube.

[0033] The connector at the other end of the negative suction tube 2 is a quick-plug connector. This quick-plug connector is compatible with the negative pressure system interface of the dental chair or the negative pressure system interface of the independent negative pressure machine, without the need to modify the original equipment, thereby improving the ease of use.

[0034] The clamping component 3 is a device fixing component used to fix the negative suction tube 2 to the dental chair, ensuring that the negative suction cup 1 is always close to the patient's mouth during the treatment process and does not affect the operation of medical staff.

[0035] The clamping component 3 is preferably a spring clamp, which has a stable clamping force and an adjustable opening, and can be adapted to negative suction tubes 2 of different diameters.

[0036] The fixed position is selected at the connection between the headrest and backrest of the dental chair. When fixed to the headrest, the position of the spring clip can be adjusted to align the negative suction cup 1 with the upper or side of the patient's mouth. When fixed to the backrest, the height of the negative suction cup can be adjusted in conjunction with the flexibility of the negative suction tube 2 to ensure that the distance between the negative suction cup and the patient's mouth is kept within the optimal capture range of 5-10cm, while avoiding obstructing the medical staff's field of vision and operating space.

[0037] The operating steps for using the oral cavity aerosol negative pressure trap of the present invention are as follows: First, fix the negative suction tube 2 to the connection between the headrest and backrest of the dental chair using the clamp 3 (spring clamp). Adjust the angle and length of the negative suction tube 2 according to the patient's position so that the negative suction cup 1 is aligned with the patient's perioral area (the flat structure is aligned with the cheek, and the ring structure is surrounded by the perioral area), ensuring that the distance between the negative suction cup 1 and the patient's perioral area is 5-10cm. Then, connect the quick-release connector at the other end of the negative suction tube 2 to the negative pressure system interface of the dental chair or the negative pressure system interface of the independent negative pressure machine, turn on the negative pressure system, and create a stable negative pressure inside the negative suction cup; During oral treatment, the aerosol generated by the device is immediately drawn in by the negative pressure inside the negative suction cup 1 after it is generated around the patient's mouth. The airflow is guided to the negative suction tube 2 through the air guide structure 5 (protruding ridges and concave grooves) inside the negative suction cup 1. During this period, the aerosol is initially filtered by the meltblown cloth 4 at the port of the negative suction cup 1 and finally enters the external negative pressure system for collection with the negative pressure airflow. After the treatment, turn off the negative pressure system, disconnect the connection between the negative suction tube 2 and the negative pressure system, remove the meltblown cloth 4 from the port of the negative suction cup 1 for replacement, clean the equipment and wait for the next use.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A negative pressure trap for aerosols in oral treatment, characterized in that, The device includes a negative suction cup (1), a negative suction tube (2), and a clamping member (3). The negative suction cup (1) is used to capture aerosols generated around the patient's mouth during oral treatment. One end of the negative suction tube (2) is connected to the negative suction cup (1), and the other end is detachably connected to an external negative pressure system interface through a connector. The negative pressure system provides the negative suction cup (1) with the negative pressure power required for aerosol capture. The clamping member (3) is used to clamp and fix the negative suction tube (2).

2. The oral cavity aerosol negative pressure trap according to claim 1, characterized in that, The external negative pressure system is either the negative pressure system built into the dental chair or the negative pressure system of a standalone negative pressure machine.

3. The oral cavity aerosol negative pressure trap according to claim 1, characterized in that, The negative suction cup (1) has a planar structure and is fixed on one side of the treatment area, aligned with the patient's cheek.

4. The oral cavity aerosol negative pressure trap according to claim 1, characterized in that, The negative suction cup (1) has a ring structure and is arranged around the patient's mouth.

5. The oral cavity aerosol negative pressure trap according to claim 1, characterized in that, The port of the negative suction cup (1) is detachably fitted with meltblown fabric (4), which performs preliminary filtration of the inhaled aerosol.

6. The oral cavity aerosol negative pressure trap according to claim 5, characterized in that, The negative suction cup (1) has an air guide structure (5) that can be detachably installed inside.

7. The oral cavity aerosol negative pressure trap according to claim 1, characterized in that, The negative suction tube (2) is made of PVC material and contains copper wire in the middle for fixing, so as to adjust and maintain the position of the negative suction cup (1).

8. The oral cavity aerosol negative pressure trap according to claim 1, characterized in that, The connector at the other end of the negative suction tube (2) is a quick-plug connector, which is compatible with the interface of the external negative pressure system.

9. The oral cavity aerosol negative pressure trap according to claim 2, characterized in that, The clamp (3) fixes the negative suction tube (2) to the connection between the headrest and backrest of the dental chair so that the negative suction cup (1) is close to the patient's mouth without affecting the treatment operation.

10. The oral cavity aerosol negative pressure trap according to claim 9, characterized in that, The clamping component (3) is a spring clamp.

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