Patent ID: 6793665
Filing Date: 2004-09-21
Classification: A61B,A61F

Abstract:
A vessel filter comprising a first filtering portion and a first anchoring portion spaced axially from the first filtering portion, a transverse dimension of the first filtering portion in an expanded configuration being less then a transverse dimension of the first anchoring portion in an expanded configuration, an end portion of the first anchoring portion spaced from the first filtering portion converging to a first converging section, and a second filtering portion and a second anchoring portion spaced axially from the second filtering portion, a transverse dimension of the second filtering portion being less than a transverse dimension of the second anchoring portion, an end portion of the second anchoring portion spaced from the first filtering portion converging to a second converging section, each of the first and second filtering portions having segments each forming at least one loop, end each of the first and second anchoring portions having segments each forming at least one loop, the first and second filtering portions being positioned closer to each other in an axial direction than the first and second anchoring portions and being configured to allow continuous blood flow therethrough while capturing clots, and the anchoring portions being formed on first and second opposite portions of the vessel filter with the first and second converging sections being adjacent opposing end portions of the filter, the anchoring portions extending integrally from the respective filtering portions and extending axially alone at least a portion of the length of the filter.