Anti-sucking type dental drill mobile phone
Hpdove
In dental treatment, the high speed operation of the air turbine will suck the virus and bacteria such as hepatitis B and AIDS that may be in the mouth of the treating patient into the whole water system of dental treatment, contaminating the dental water, even though Disinfecting drills are also full of pathogens and viruses when spraying water. Due to the sucking action of dental drill mobile phones, dental water used clinically in the patient's mouth is seriously contaminated by various pathogenic microorganisms and non-pathogenic microorganisms. The bacterial content can reach tens of thousands of milliliters per milliliter of untreated dental water samples. One. Inside the dental treatment platform, these bacteria usually exist in the form of biofilms. The biofilm adheres to the surface of the dental water system and the wall of the inner wall of the dental drill. A large number of bacteria are trapped in these membranes to form bacteria. surroundings. According to statistics from abroad, the total amount of various bacteria in biofilm can reach 10 million bacterial colonies per milliliter of dental water. The biofilm may fall off from the inner wall of the waterway into the dental treatment water at any time, and is sprayed by the dental drill when treating the patient. At the same time, in addition to directly entering the patient's mouth, the polluted water sprayed by the drill will form a water mist dispersion medical office, pollute the air in the consultation room, and pollute the medical personnel. What is worrying is that the occurrence of dental diseases is unavoidable in one's life. Almost 100% of people may receive dental treatment. Therefore, dentistry has become a high-risk area for hospital interactions.Against this background, a suction-back type dental drill handpieces is composed of an outer shell, a rear bearing, a turbine rotor, a front bearing, a rotating shaft, a drill bit, and a front shell, and is composed of the above components. High-pressure air can be introduced into the annular space between the outer ring of the drill body and the outer shell through the high-pressure air outlet of the dental drill handle and then into the air space between the bearing outer ring and the outer shell body of the drill bit, and then lead into the air turbine with rotating drill bit after passing the air turbine. The gas enters the annular space between the rear end bearing and the outer shell, and is discharged from the air outlet and then returned to the air return passage in the handlebar to block any liquid or gas suck back at the drill bit end, thereby improving the aerodynamic efficiency and shaft work. Output, and reduce noise.
