Water purification system for dental instrument
OwnerLeo H. Wolf, Mark F. Wolfinventors
Life of this patent
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Abstract
A system for purifying water supplied to a dynamic dental instrument has a disposable element having an iodinated resin containing a polyiodide, I.sub.5. Disease causing microorganisms in water flowing through the element are neutralized with neutralizing agents released directly into the microorganisms when the microorganisms come into contact with the resin. Residual iodine is released as water passes through the resin and remains between the element and the dynamic instrument to maintain dental unit water purity.
Claims22
A dental apparatus having a fluid supply system comprising:
- a dental instrument having first tube means, second tube means providing fluid to the first tube means, fluid purification means releasably mounted on the first tube means and the second tube means, the fluid purification means including filter means operable to purify and supply disinfectant means to the fluid as the fluid passes through the filter means, the disinfectant means remaining as a residual in the fluid as the fluid moves between the fluid purification means and the dental instrument whereby when the fluid is discharged from the dental instrument the fluid is in a microbiologically pure condition and contains the disinfectant means, the disinfectant means neutralizing contaminants drawn back into the fluid supply system to prevent cross infection, and means connected to the first tube means and second tube means to releasably attach the fluid purification means to the first and second tube means.
A cartridge located in a water line leading to a dental instrument having a water supply system comprising:
- a housing defining an internal chamber, filter means located in the chamber operable to purify and release a disinfectant into water flowing through the chamber, the disinfectant remaining as a residual in the water as the water moves between the cartridge and the dental instrument whereby when the water is discharged from the dental instrument the water is in a microbiolobically pure condition and contains the disinfectant, the disinfectant neutralizing contaminants drawn back into the water supply system to prevent cross infection, and coupling means attached to the housing for releasably connecting the cartridge to the water line leading to the dental instrument.
A cartridge for purifying water supplied from a water supply system to a dental instrument comprising:
- a housing defining an internal chamber, the housing having opposite ends, each end having a passage open to the chamber, filter means located in the chamber operable to purify and release disinfectant means into water flowing through the filter means, porous means located in the chamber adjacent ends of the filter means to retain the filter means in the chamber and allow water to flow through the chamber, and coupling means secured to the end of the housing used to releasably connect the cartridge to the water supply line of the dental instrument.
Dependencies are inferred from the claim text.