Surgery – Instruments – Internal pressure applicator
Reexamination Certificate
1999-08-14
2001-06-12
Buiz, Michael (Department: 3731)
Surgery
Instruments
Internal pressure applicator
Reexamination Certificate
active
06245088
ABSTRACT:
BACKGROUND
The medical community is in constant search for new ways to prevent blood clots from reaching the heart of humans and animals, as well as other objects or debris in the blood flow which may cause health problems. It is an object of the present invention to provide a method and apparatus for catching any blood clots, or other debris, that might dislodge from their origin of the veins in the pelvic or femoral systems. Another object of the present invention is to provide a method and apparatus for used during the medical surgical treatment phase of thrombophlebitis and venous thrombosos in the precautionary prevention of pulmonary emboli. Another object of the present invention is to provide a method and apparatus for routinely placing a preventive device in lower extremity fractures, especially that of the hip, in anticipation of preventing pulmonary emboli. Another object of the present invention is to provide a method and apparatus for a non-permanent manner of accomplishing the foregoing, whereby the apparatus is retrievable.
SUMMARY OF THE INVENTION
The present invention is an umbrella sieve for capturing objects in a blood vessel which includes an inserter tube having a top; an umbrella cap having a lower peripheral circumference edge and an ability to fold like a rain umbrella; the umbrella cap having a perforated surface to allow the passage of fluids of the blood vessel; the umbrella cap being attached to the top of the inserter tube; an inflatable circumfrential balloon attached to the lower peripheral circumference edge for extending the umbrella cap when inflated; a first inflation line connected to the circumfrential balloon for inflating the circumfrential balloon. The umbrella sieve also includes an occlusive membrane attached to the inserter tube and below the umbrella cap; and wherein the membrane is extendible around the inserter tube to form a treatment compartment. The method of using the umbrella sieve includes inserting the umbrella sieve into the blood vessel; inflating the circumfrential balloon to extend the umbrella cap; capturing objects in flow of the blood vessel; removing any objects captured; deflating the circumfrential balloon; and removing the umbrella sieve. The method also includes extending the membrane around the inserter tube to form a treatment compartment by inflating the occlusive balloon attached to the membrane from a second inflation line after capturing of the objects to form a treatment compartment and further including before removal of the umbrella sieve, the deflation of the occlusive balloon to retract the occlusive membrane.
REFERENCES:
patent: 5769816 (1998-06-01), Barbut et al.
patent: 5814064 (1998-09-01), Daniel et al.
patent: 6007557 (1999-12-01), Ambrisco et al.
Buiz Michael
Elnitski, Jr. John J.
Trinh Hoa B.
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