Dental cleansing system
AssigneeAdvanced Design Corporation
InventorsEdwin A. Nelson, Ronald C. Webb
Life of this patent
Estimating the term…
Abstract
A hand-held dental cleansing system for delivery of an abrasive laden stream against a tooth which is to be cleaned. The system is adapted to be coupled to sources of pressurized liquid and gas, and includes handpiece having a canister containing the abrasive material. Through various valves on the handpiece controlling the liquid and gas streams, the abrasive material is transported from the canister to a mixing chamber within a nozzle on the handpiece. The liquid or gas streams may be combined with the abrasive laden stream within the mixing chamber so as to result in a homogenous stream delivered to a single point on the tooth being cleaned. The canister, mixing chamber and connecting conduit may be constructed as a single unit adapted for easy removal and replacement by a fresh unit.
Claims20
A hand-held system adapted to be connected to gas and liquid supply means for delivering an abrasive to a tooth to be cleaned, comprising:
- first means connected to the gas supply means for producing a controlled gas stream;
- second means connected to the liquid supply means for producing a controlled liquid stream;
- a canister containing an abrasive material, said canister having an inlet for receiving one of said gas and liquid streams, and an outlet permitting exiting of an abrasive laden stream;
- a mixing chamber receiving said gas, liquid and abrasive laden streams for combining and directing said streams so as to strike a common point on the tooth being cleaned;
- and
- a unitary handpiece for containing said first and second means, said canister and said mixing chamber, said handpiece having means for removably mounting said canister to permit replacement by another canister.
A hand-held system adapted to be connected to gas and liquid supply means for delivering an abrasive to a tooth to be cleaned, comprising:
- first means connected to the gas supply means or producing a controlled gas stream;
- second means connected to the liquid supply means for producing a controlled liquid stream;
- a canister containing an abrasive material and having an outlet to permit exiting of an abrasive laden stream;
- manually actuatable means coupled to said canister for producing said abrasive laden stream;
- a mixing chamber receiving said gas, liquid and abrasive laden streams for combining and directing said streams so as to strike a common point on the tooth being cleaned;
- and
- a unitary handpiece for containing said first and second means, said canister, said manually actuatable means and said mixing chamber, said handpiece having means for removably mounting said canister to permit replacement by another canister.
Dependencies are inferred from the claim text.