Lavage system
AssigneeSnyder Laboratories, Inc.
InventorsRobert W. Atkinson, Michael J. Laco
Life of this patent
Estimating the term…
Abstract
A mechanism, such as a motor driving a pump, creates a pulsating fluid flow. A sensor senses an operating condition of the system and provides a signal representative of the condition. A controller responsive to the signal controls the pulsating fluid flow mechanism in a predetermined manner in accordance with the condition sensed. In one aspect the sensor is a pressure transducer which senses when a throttle valve on a lavage head shuts off or turns on the fluid flow and provides a signal to a controller which shuts off or turns on the motor. In another aspect the sensor is a thermistor which senses the temperature of the motor and provides a signal for controlling the power input to the motor to compensate for the effect of temperature on the performance of the motor.
Claims2
A lavage system comprising:
- a means for producing a pulsatile fluid flow including a motor and means for furnishing a power signal to said motor:
- a means for sensing a temperature condition of said motor and for providing a signal representative of said condition;
- a means responsive to said condition signal for controlling said means for producing in a predetermined manner to effect a change in said power signal;
- and
- said means for sensing includes a means for sensing a fluid pressure within the lavage system, said means for controlling comprises a means for turning said means for producing a pulsatile fluid flow off when said pressure exceeds a predetermined value and for turning the means for producing a pulsatile fluid flow on when the pressure equals or falls below said value and further including means for adjusting said pressure and said predetermined value.
A lavage system comprising:
- a means for producing a pulsatile fluid flow including a motor and means for furnishing a power signal to said motor:
- a means for sensing a temperature condition of said motor and for providing a signal representative of said condition;
- and
- a means responsive to said condition signal for controlling said means for producing in a predetermined manner to effect a change in said power signal, said means for sensing is also responsive to the rate of flow of fluid in at least a portion of said system.
Dependencies are inferred from the claim text.