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AssigneeInterventional Therapeutics Corporation
InventorRay H. Dormandy, Jr.
Estimating the term…
Dual valve detachable occlusion balloon for use in an artificial vessel embolization for using a delivery catheter adapted to receive a fluid for inflating the balloon. The delivery catheter has proximal and distal extremities and a flow lumen extending from the proximal extremity to the distal extremity and has a balloon inflation orifice in the distal extremity in communication with the flow lumen. The valve comprises a cylindrical body of an elastomeric material having first and second open ends and a bore extending between the first and second open ends. A first valve is mounted in the first end of the cylindrical body. A second valve is mounted in the second end of the cylindrical body. The first and second valves face in opposite directions in the bore. The first and second valves are in a normally sealed position to prevent the escape a fluid under pressure in the bore of the cylindrical body. The first and second valves are formed to permit movement to an open position to permit the delivery catheter to be inserted therethrough and form a substantially fluid-tight seal therewith with the balloon inflation orifice being disposed in the bore between the first and second valves so that fluid introduced into the bore through the delivery catheter to inflate the balloon cannot escape. The valves are formed to move to a closed sealing position upon removal of the delivery catheter from the balloon.
A dual valve detachable occlusion balloon for use in an artificial vessel embolization for use with a delivery catheter adapted to receive a fluid for inflating the balloon, the delivery catheter having proximal and distal extremities and a flow lumen extending from the proximal extremity to the distal extremity and having a balloon inflation orifice in the distal extremity in communication with the flow lumen, the balloon comprising a cylindrical body of an elastomeric material having first and second open ends and a bore extending between the first and second open ends, a first duck-bill valve mounted in the first open end of the cylindrical body, a second duck-bill valve mounted in the second open end of the cylindrical body, said first and second valves facing in opposite directions into the bore, said first and second duck-bill valves each comprising an elastomeric cylindrical base member having an axial bore extending therethrough, a pair of leaflets bonded to the cylindrical base in a curvilinear manner and forming a mitre seal extending diametrically of the cylindrical base, said first and second duck-bill valves being in a normally sealed position to prevent the escape of a fluid under pressure in the bore of the cylindrical body, said first and second duck-bill valves being formed to permit movement to positions to permit said delivery catheter to be inserted through said first and second duck-bill valves and form a substantially fluid-tight seal therewith and so that the balloon inflation orifice is disposed in the bore between the first and second duck-bill valves whereby fluid introduced into the bore through the delivery catheter to inflate the balloon cannot escape, said first and second duck-bill valves being formed to move to a closed sealing position upon removal of the delivery catheter from the balloon.
An over-the-wire delivery apparatus comprising:
A method for placing a dual valve occlusion balloon having first and second spaced-apart valves on the distal extremity of a balloon delivery catheter of the type having a distal extremity and having a lumen extending therethrough and having a balloon inflation orifice proximal of the distal extremity and in communication with the lumen by use of a mandrel having a cylindrical body with a distal extremity having a porpoise-like nose thereon comprising inserting the mandrel into the balloon by introducing the porpoise-like nose through the second valve, introducing the distal extremity of the balloon delivery catheter through the first valve, advancing the porpoise-like nose into the distal extremity of the balloon delivery catheter, advancing the balloon off of the mandrel and onto the distal extremity of the balloon delivery catheter so that the balloon inflation orifice is disposed within the balloon between the first and second valves.
A method for delivering an occlusion balloon to a site in a vessel to create an artificial embolization in the vessel comprising introducing a guide wire having a distal extremity so that the distal extremity of the guide wire is disposed in the vicinity of where a vessel embolization is to be undertaken, providing a balloon delivery catheter having a distal extremity with a lumen extending through the distal extremity and having a balloon inflation orifice proximal of the distal extremity in communication with the lumen, mounting a dual valve balloon onto the distal extremity of the balloon delivery catheter so that it is in registration with the balloon inflation orifice carried by the balloon delivery catheter, advancing the distal extremity of the balloon delivery catheter with the balloon thereon over the guide wire and to the region where the balloon is to be positioned, inflating the balloon, detaching the balloon from the distal extremity of the balloon delivery catheter and removing the delivery catheter and the guide wire from the vessel while leaving the balloon in place in the vessel.
Dependencies are inferred from the claim text.