Pump for oscillating a fluid in vivo

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

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604 27, 604319, 417415, A61M 100

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active

047239417

ABSTRACT:
A pump for oscillating a fluid into and out from a body area. The pump forms a fluid chamber for holding the fluid, and comprises a piston for forcing fluid outward from the fluid chamber and into the body, and for drawing fluid inward from the body and into the fluid chamber. A motor is connected to the piston, and a control circuit is connected to the motor to control movement of the piston. The control circuit has a first state actuating the motor to force the fluid into the body, and a second state actuating the motor to draw the fluid from the body, and the control circuit may be adjusted to vary the rates at which fluid is forced into and drawn from the body.

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