发明名称 |
Dental treatment system |
摘要 |
Treating teeth or associated tooth structure by the use of an abrasive-laden fluid stream which provides fluid at high pressure to a manifold with selectively operable valves, delivers fluid at a selected pressure to a mixer for fluid and abrasive and delivers the mix to a handpiece for application of abrasive-laden air to a tooth or tooth structure. Low pressure priming air pressurizes the air abrasive device. A path for pure air bypasses the air/abrasive device. A control allows for delivery of air or air and abrasive as desired. Fluid pressure is controlled by a manually-operable servo system. Following treatment with the air/abrasive, a purge line purges the system downstream from the abrasive device of excess abrasive particles. A vacuum removes abrasive particles and debris from the patient's mouth. The abrasive delivery device may include a hand-held nozzle having fluid ports operable by the fingers of the operator to control system functions. The vacuum includes a ridge, disposable collection chamber for sterile disposal of abrasive and debris and may include a common filter for the purge circuit and the system for removal of abrasive particles and debris. Connection to the existing suction system in the dental office or use of a water powered venturi to provide suction is disclosed. Pressure regulating and relief means insure instantaneous change of pressure levels.
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申请公布号 |
US5525058(A) |
申请公布日期 |
1996.06.11 |
申请号 |
US19940276964 |
申请日期 |
1994.07.19 |
申请人 |
AMERICAN DENTAL TECHNOLOGIES, INC. |
发明人 |
GALLANT, BEN J.;GLEEMAN, ALAN N.;PARKER, WILLIAM S. |
分类号 |
A61C3/02;A61C3/025;A61C5/00;B24C7/00;(IPC1-7):A61C3/02 |
主分类号 |
A61C3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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