Interproximal toothbrush
AssigneeEsro AG
InventorPaul Brandli
Life of this patent
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Abstract
A brush construction is disclosed which comprises one or more twisted wires having fixed filaments between turns of the wire or wires, the wire or wires having an electrically insulated, wear-resistant and elastic layer thereon. This prevents the wire from reacting with its surroundings, for example, producing a galvanic or electrical effect when used as a dental or oral cleansing brush.
Claims2
An interproximal toothbrush for cleaning the interdental spaces between teeth comprising, one twisted double wire having an outer end portion for insertion into an interdental space with a plurality of fixed filaments positioned between turns of said one twisted double wire said filaments extending radially from said outer end portion in all directions, said twisted double wire having a covering layer of wear-resistant electrically insulating and soft elastic material formed of a continuous, coherent lacquered layer of plastic, said twisted double wire comprising two wire strands each with a diameter of about 0.3 mm, said plastic being cross-linked polyurethane, each of said wire strands being entirely enclosed by said layer of plastic material.
Dependencies are inferred from the claim text.