Orthodontic elastomeric ligature with slippery coating and method of making same
AssigneeTP Orthodontics, Inc.
InventorThrumal Davanathan
Life of this patent
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Abstract
An orthodontic elastomeric appliance with a polymer coating that becomes slippery when wetted, and a method of making the appliance which comprises the steps of forming an appliance of elastomeric material and coating the appliance with a polymer film capable of making the appliance slippery when wetted.
Claims19
A method of making an orthodontic elastomeric appliance comprising the steps of:
- forming an appliance of elastomeric material,
- and coating the appliance with a hydrophillic polymer blend so that the coefficient of friction of the appliance is substantially decreased when the appliance is wetted.
An orthodontic elastomeric appliance having a slippery outer surface when wetted comprising a polyurethane body coated with a hydrophillic polymer blend, whereby said hydrophillic polymer blend decreases the coefficient of friction of the appliance when the appliance is wetted.
A method of making an orthodontic appliance of elastomeric material, said method comprising the steps of:
- forming an appliance of elastomeric material, and
- coating the appliance with a polymer film so that the coefficient of friction of the appliance is substantially decreased when the appliance is wetted.
An orthodontic elastomeric appliance comprising a body of elastomeric material with a polymer coating, whereby the polymer coating decreases the coefficient of friction of the appliance when the appliance is wetted.
Dependencies are inferred from the claim text.