Surgery – Devices transferring fluids from within one area of body to... – With flow control means
Reexamination Certificate
2008-05-13
2008-05-13
Deak, Leslie R. (Department: 3761)
Surgery
Devices transferring fluids from within one area of body to...
With flow control means
C604S006110, C623S003120, C623S014130, C600S016000
Reexamination Certificate
active
10262817
ABSTRACT:
A pump apparatus, which comprises: (a) a tubular portion comprising an electroactive polymer actuator that expands and contracts an inner volume of the tubular portion based upon received control signals; and (b) a control unit electrically coupled to the electroactive polymer actuator and sending control signals to the actuator. The pump apparatus can further include at least one valve that is in fluid communication with the inner volume of the tubular portion. The pump apparatus can be used, for example, as a heart-lung bypass pump apparatus. Also disclosed herein is a method of providing circulatory support for patient. The method comprises (a) providing the above pump apparatus; (b) placing an inlet of the pump apparatus in fluid communication with the venous side of the patient's vascular system; (c) placing an outlet of the pump apparatus in fluid communication with the arterial side of the patient's vascular system; and (d) sending control signals to the electroactive polymer actuator thereby pumping blood from the venous side to the arterial side of said patient's vascular system.
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Banik Michael S.
Couvillon, Jr. Lucien Alfred
Bonham, Esq. David B.
Boston Scientific Scimed Inc.
Deak Leslie R.
Mayer & Williams PC
Park, Esq. Keum J.
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