초록 ▼

An aspiration system that may include a control valve to allow a flow of fluid into an aspiration line and vary a vacuum pressure within the line. The system may include a pressure transducer that is coupled to the aspiration line by a sensor line and a check valve. The check valve prevents a back f

An aspiration system that may include a control valve to allow a flow of fluid into an aspiration line and vary a vacuum pressure within the line. The system may include a pressure transducer that is coupled to the aspiration line by a sensor line and a check valve. The check valve prevents a back flow of fluid from the aspiration line to the pressure line. The system may further have a control circuit that is coupled to the pressure transducer and the control valve. The control circuit may control the control valve and regulate the vacuum pressure within the aspiration line. The control circuit may receive an input signal that also controls a medical handpiece. The input signal can be generated by a foot pedal that also controls the handpiece. The system may thus have one foot pedal that can control the handpiece and the vacuum pressure of the aspiration line.

대표청구항 ▼

1. An aspiration system for a medical device, comprising:an aspiration line that has a vacuum pressure; a pressure sensor that senses the vacuum pressure; a sensor line that provides fluid communication between said pressure sensor and said aspiration line; a one-way check valve that is connected to

1. An aspiration system for a medical device, comprising:an aspiration line that has a vacuum pressure; a pressure sensor that senses the vacuum pressure; a sensor line that provides fluid communication between said pressure sensor and said aspiration line; a one-way check valve that is connected to said sensor line and located between said pressure sensor and said aspiration line, said one-way check valve allows fluid flow from said sensor line to said aspiration line and prevents fluid flow from said aspiration line to said sensor line; a control valve that provides a flow of fluid into said sensor line; and, a control circuit that is connected to said pressure sensor and controls said control valve.