Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1994-12-01
1996-09-17
Swiatek, Robert P.
Dentistry
Apparatus
Having intra-oral dispensing means
433 88, A61C 110, A61C 1702
Patent
active
055562795
ABSTRACT:
A cartridge system for purifying water supplied to a dental unit and dynamic dental instrument has at least one disposable cartridge element having an activated charcoal resin and an iodinated anionic exchange resin containing a continuous fixed-rate release iodinated resin I.sub.(n). Iodine is released from the iodinated resin at a specified and consistent rate as water passes through the resin to maintain dental unit water purity. The activated charcoal resin functions to remove chlorine from incoming water to prevent chlorine reaction with iodine. The cartridge is installed in the water supply tubing at the point of connection to a water supply system. Tubing having inner surfaces passivated with iodine is connected to the downstream end of the cartridge. The cartridge is the principal water purification source and reinforces an existing water purification system. The cartridge is used to provide microbiologically pure water to the dental unit and to prevent back contamination to the water supply system and tubing biofilm. The iodinated biocidal resin neutralizes and kills disease causing bacteria, viruses and protozoa as water passes through the cartridge providing microbiologically pure water to the dynamic dental instrument. Aspirated microbes are killed by residual iodine eluted from the cartridge and are prevented from traveling back beyond the cartridge. The residual iodine also maintains the passivated condition of the tubing through a state of equilibrium between the tubing and water located therein creating a biostatic condition within the tubing to resist microorganism colonization and biofilm on the tubing.
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"MCV Resin: Iodination Treatment Based on Space Technology", Water Conditioning & Purification, Mar. 1992, pp. 34, 38-40.
Wolf Leo H.
Wolf Mark F.
Shaw Elizabeth
Swiatek Robert P.
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