Endovascular occlusive device and associated surgical methodology
OwnerJohn S. DeMerittinventor
Life of this patent
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Abstract
A vascular plug comprises a superstructure expandable from a collapsed percutaneous insertion configuration to an expanded deployment or use configuration. The superstructure incorporates a channel or passageway and a catheter extends through the channel or passageway from a proximal side at least to a distal side of the superstructure. The central channel allows for over-the wire plug delivery and a working aperture for secondary vascular interventions under flow arrest prior to final plug release. The plug includes spring-loaded mechanical elements or clotting-enhancement structure for closing the channel or passageway upon a withdrawal or removal of the catheter from the superstructure.
Claims10
A surgical assembly comprising:
- a superstructure expandable from a collapsed insertion configuration to an expanded deployment or use configuration, said insertion configuration being sufficiently small to enable percutaneous introduction into a patient's vascular system, said expanded deployment or use configuration being sufficiently large to extend across a target blood vessel and engage an endothelial surface of such blood vessel, said superstructure having a channel or passageway;
- a catheter extending through said channel or passageway from a proximal side at least to a distal side of said superstructure;
- and
- a closure device adapted to close or block said channel or passageway upon a withdrawal or removal of said catheter from said superstructure.
A medical method comprising:
- providing a medical device having a superstructure;
- inserting, into a vascular system of a patient, said medical device with said superstructure in a collapsed configuration;
- thereafter expanding said superstructure from the collapsed configuration to an expanded deployment or use configuration inside a target blood vessel in the vascular system of the patient so that the expanded superstructure extends across the target blood vessel and engages an endothelial surface of such blood vessel;
- via a catheter extending through a channel or passageway in said superstructure, conducting a surgical intervention on a distal side of the expanded superstructure;
- upon a completion of said surgical intervention, removing said catheter from said channel or passageway;
- and
- closing said channel or passageway upon a withdrawal or removal of said catheter from said superstructure.
Dependencies are inferred from the claim text.