Removable blood conduit filter

US9107733B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9107733-B2
Application numberUS-33175406-A
CountryUS
Kind codeB2
Filing dateJan 13, 2006
Priority dateJan 13, 2006
Publication dateAug 18, 2015
Grant dateAug 18, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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Abstract

Official abstract text for this publication.

The present invention relates to a non-evertable blood filter that divides the transverse cross sectional area of a venous vessel into three annular regions or zones. The inner zone, the region immediately surrounding the longitudinal axis of the vessel, is maintained in a relatively open state with only minimal interference from the members making up the filter device so that blood flow can be maintained at a relatively normal rate. Concentrically surrounding the inner zone is the intermediate zone, to which captured emboli are directed out of the bloodstream passing primarily through the inner zone. Finally, concentrically surrounding the intermediate zone is the outer zone adjacent to the vessel wall. This is also intended to be kept free of emboli, so that emboli in the bloodstream immediately adjacent the vessel wall are directed away from the wall by the filter design and into the intermediate zone, thereby avoiding the accumulation of emboli adjacent the vessel wall that might otherwise result in stenosis. The blood filter is intended primarily for use as an inferior vena cava filter, although it can be made in a range of sizes allowing its use in blood vessels and particularly venous vessels of differing diameters. The filter is preferably removable.

First claim

Opening claim text (preview).

We claim: 1. A blood filter adapted for deployment in a blood vessel having a wall, comprising a non-everting filter frame having a longitudinal axis and having at least a first outer zone, a second intermediate zone and a third inner zone, the first, second and third zones in annular relationship with each other and disposed about the longitudinal axis, the first, outer zone adjacent to the wall of the blood vessel, the second, intermediate zone adapted for collection of blood clo…

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What does patent US9107733B2 cover?
The present invention relates to a non-evertable blood filter that divides the transverse cross sectional area of a venous vessel into three annular regions or zones. The inner zone, the region immediately surrounding the longitudinal axis of the vessel, is maintained in a relatively open state with only minimal interference from the members making up the filter device so that blood flow can be…
Who is the assignee on this patent?
Cully Edward H, Hartman Cody L, Nordhausen Craig T, and 3 more
What technology area does this patent fall under?
Primary CPC classification A61B17/221. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).