Surgery – Instruments – Internal pressure applicator
Reexamination Certificate
2005-05-24
2005-05-24
Truong, Kevin T. (Department: 3731)
Surgery
Instruments
Internal pressure applicator
Reexamination Certificate
active
06896691
ABSTRACT:
A self-expanding filter has a deployable resilient distal portion with properties of passing fluid (e.g. blood) in a vessel (e.g. an artery) and blocking the passage of emboli in the fluid. The self-expanding filter is disposed in the vessel, in the direction of fluid flow in the vessel, with its resilient proximal and distal ends at positions past a lesion in the vessel. The distal end of the self-expanding filter is then deployed against the vessel wall. An interventional device, such as an expandable member (e.g. balloon) and expandable stent are disposed in the vessel at the position of the lesion in the vessel. The expandable member is then dilated to expand the expandable stent against the vessel wall and open the vessel at the lesion position. Fluid (blood) flows through the deployed distal end of the self-expanding filter and emboli created during the procedure are trapped by the deployed distal end of the filter. The expandable member is then collapsed after all of the emboli have been trapped by the deployed distal end of the self-expanding filter. The resilient proximal end of the self-expanding filter is thereafter deployed against the vessel wall. This causes the emboli to be trapped between the vessel wall and the proximal and distal ends of the self-expanding filter. Alternatively, the expandable member may be deflated and withdrawn from the vessel after the proximal end of the filter has been deployed against the wall of the vessel.
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Boylan John F.
Simpson John A.
Advanced Cardiovascular Systems Inc.
Fulwider Patton Lee & Utecht LLP
Truong Kevin T.
LandOfFree
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