DEVICE AND METHOD FOR SEALING BLOOD VESSELS

摘要

The present invention provides devices, systems, and methods for percutaneously sealing a puncture site in tissue tracts and vessels in human or animal bodies. One system includes a locating assembly that is used to locate the puncture site and can also provide temporary hemostasis when the system is used for closing a vessel puncture. The system also includes a compression assembly comprising a tubular member with a balloon on a distal end thereof. This balloon is at a fixed distance from the locator tip which locates the balloon outside the vessel wall at a predetermined distance. Inflation of this balloon causes forward elongation of the balloon which compresses subcutaneous tissue between the distal tip of the balloon and the vessel wall. This tissue compression against the puncture site is the mechanism that provides hemostasis.

主权项

1. A system for hemostasis of a puncture site in a body lumen, the device comprising:
a locating member having a proximal end and a distal end and an expansible member disposed on the distal end thereof; and a compression member at least partially coaxial with the locating member, the compression member having a proximal end and a distal end and an expansible element disposed at the distal end thereof, wherein a distal end of the expansible element is postionable at a predetermined distance away from a wall of the body lumen.