Hygiene regulations and social distancing are very effective in blocking short distance infections. During the lockdown, the distance rules can usually be adhered to, but what happens when the actual lockdown is over and the people meet again in a confined space? Then additional effective and efficient protection is essential to stabilize infection rates. Since the viruses are spread by contact and droplet infection, technical devices are required that effectively intervene in the chain of infection and effectively block infection. An effective protection is the respiratory mask as known since 100 years.

An alternative to mask is an aerosol protection system for various applications in environment. The protection system consists of adjustable air sucking device and air blowing device in different form factors based on application. The aerosol protection system uses either an air curtain or air shield to prevent the aerosol going from one side of the curtain or shield to the other side.

An oral cavity washing device includes a nozzle having a flow passage structure and a pump to feed washing liquid to the flow passage structure. The flow passage structure includes: a first component having a first flow passage; a second component being disposed downstream of the first component and having a second flow passage that is narrower than the first flow passage; a third component being disposed downstream of the second component and having a third flow passage that is broader than the second flow passage; a reducer being disposed downstream of the third component and being configured so as to reduce a width of the flow passage; and a fourth component being disposed downstream of the reducer and having a fourth flow passage that widens with an advancement in a path from the reducer to the outlet port so as to generate cavitation in the washing liquid.

An oral cavity washing device includes a nozzle having a flow passage structure and a pump to feed washing liquid to the flow passage structure. The flow passage structure includes: a first component having a first flow passage; a second component being disposed downstream of the first component and having a second flow passage that is narrower than the first flow passage; a third component being disposed downstream of the second component and having a third flow passage that is broader than the second flow passage; a reducer being disposed downstream of the third component and being configured so as to reduce a width of the flow passage; and a fourth component being disposed downstream of the reducer and having a fourth flow passage that widens with an advancement in a path from the reducer to the outlet port so as to generate cavitation in the washing liquid.

A mobile orthodontic treatment system includes comprising a mobile trailer and a panoramic machine provided within the trailer. The panoramic machine is configured to obtain a 2-D image of a patient's mouth and includes a base secured to the floor of the housing and a stanchion secured to the trailer by a bracket. The mobile orthodontic treatment system further includes a digital scanner and a monitor provided within the housing. The digital scanner is configured to obtain a 3-D image of the patient's mouth and display the image on the monitor. The digital scanner and the monitor are mounted on a wall of the housing by a wall mount articulating bracket. The mobile orthodontic treatment system further includes a lift assembly provided on one of a side and an end of the housing to enable disabled people to enter and exit the housing.

A mobile orthodontic treatment system includes comprising a mobile trailer and a panoramic machine provided within the trailer. The panoramic machine is configured to obtain a 2-D image of a patient's mouth and includes a base secured to the floor of the housing and a stanchion secured to the trailer by a bracket. The mobile orthodontic treatment system further includes a digital scanner and a monitor provided within the housing. The digital scanner is configured to obtain a 3-D image of the patient's mouth and display the image on the monitor. The digital scanner and the monitor are mounted on a wall of the housing by a wall mount articulating bracket. The mobile orthodontic treatment system further includes a lift assembly provided on one of a side and an end of the housing to enable disabled people to enter and exit the housing.

The EVADE (Externally Vented Aerosol and Droplet Evacuation) system is designed to treat collected aerosols with ultraviolet radiation and exposure to ozone gas to prevent the spread of COVID or other infectious pathogens. The system uses an externally vented central vacuum system which produces up to 280 CFM of vacuum flow to facilitate collection of potentially contaminated oral aerosols and droplets generated by instrumentation of any type within the medical, dental or any other field which generates said aerosols. The aerosols are collected within a mirrored chamber, reflecting UVC light in all directions and exposing the aerosols to ozone before moving through HEPA particle filtration and out of the environment through the exhaust of a central vacuum system.

An oral irrigator handle including a housing and a first fitting, the first fitting including a first fitting inlet in fluid communication with a handle inlet in fluid communication with a fluid source and a first fitting outlet in fluid communication with the first fitting inlet. The handle includes a seal positioned around the first fitting and between the first fitting inlet and the first fitting outlet. A second fitting includes a second fitting inlet in fluid communication with the first fitting outlet and a second fitting outlet in fluid communication with the second fitting inlet. A bottom portion of the second fitting seats on a portion of the first fitting so that the seal engages an interior surface of the second fitting, a flow passage is coupled to the second fitting and in fluid communication with the second fitting outlet.

The present invention provides a dental treatment assisting tool which allows various foreign materials generated when teeth are being polished or plaque is being removed during dental treatment to be easily withdrawn to the outside without having to swallow and also allows breathing through the mouth. Specifically, the dental treatment assisting tool comprises: a base plate (1) having a generally circular shape on plane, having a concave upper side so that saliva or foreign materials can be easily collected to the center thereof, and having an elliptical spatial part (12) formed on one side thereof for a tongue to be seated therein; and an air supply pipe (2) which is a soft resin pipe connected to a hole (14) bored in the center of the base plate (1). Accordingly, during the dental treatment, the entire throat may be sealed in a breathable state for a patient. The present invention has the many advantages of being capable of completely preventing the backflow of solid foreign materials to the throat by filtering the same by means of a blocking plate made of a soft material during treatment and ensuring a comfortable and pleasant treatment as nasal breathing through the nose and also oral breathing through the mouth can be freely performed.

The present invention provides a dental treatment assisting tool which allows various foreign materials generated when teeth are being polished or plaque is being removed during dental treatment to be easily withdrawn to the outside without having to swallow and also allows breathing through the mouth. Specifically, the dental treatment assisting tool comprises: a base plate (1) having a generally circular shape on plane, having a concave upper side so that saliva or foreign materials can be easily collected to the center thereof, and having an elliptical spatial part (12) formed on one side thereof for a tongue to be seated therein; and an air supply pipe (2) which is a soft resin pipe connected to a hole (14) bored in the center of the base plate (1). Accordingly, during the dental treatment, the entire throat may be sealed in a breathable state for a patient. The present invention has the many advantages of being capable of completely preventing the backflow of solid foreign materials to the throat by filtering the same by means of a blocking plate made of a soft material during treatment and ensuring a comfortable and pleasant treatment as nasal breathing through the nose and also oral breathing through the mouth can be freely performed.

An oral irrigator handle has a handle housing with a swivel assembly for connection to a hose further connected to a fluid source. A tip for directing a focused stream of fluid is releasably connected to a first end of the handle. The swivel assembly is received within the housing and fluidly coupled to tip. The hose is connected to the swivel assembly and fluidly coupled to the tip via the swivel assembly. The swivel assembly prevents translation of rotational movement of the handle or the hose to the other.