Internally sterile pulsatile infusor system

Details Internally sterile pulsatile infusor system Internally sterile pulsatile infusor system

1981-08-21

1983-10-25

Pellegrino, Stephen C.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

417276, 04B 4308, A61M 500, F04B 4506

Patent

active

044116527

ABSTRACT:
An internally sterile pulsatile infusor system comprises an elastic reservoir or bulb connected to a closed, sterile source of a liquid infusion solution. A check valve is connected between the source and bulb to prevent reflux of the solution therepast and a reciprocating piston is arranged to intermittently compress the bulb to create a pulsating discharge of solution through a cannula. In the preferred embodiment of this invention, controls are provided to vary the rate of compressions of the bulb and to also modulate the force of the pulsating discharge through the cannula. The pulsatile infusor system is useful in many areas in the fields of medicine and surgery, including extracapsular cataract extraction and intravenous infusion procedures wherein bloodclots and like blockages must be removed from the cannula.

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IBM Technical Disclosure Bulletin, Positive Displacement Pump, R. T. Albo, vol. 7, No. 11, Apr. 1965.

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