FILTER SYSTEM AND METHOD

摘要

A filter system, comprising an elongate filter body defining a lumen and having a proximal end and a distal end. A valve can be provided defining a lumen and having a reversibly sealable opening for unidirectional flow of a fluid through the lumen. The valve can be adjoined proximal the distal end of the elongate filter body, wherein the elongate filter body filters the unidirectional flow of the fluid passing through the lumen of the valve and the lumen of the elongate filter body.

主权项

1. A filter and valve system for use in a body lumen, comprising:
an elongate filter body having a tubular shaft including an expandable filter region fixedly attached at a distal end of the tubular shaft which together define a lumen extending from a proximal end of the tubular shaft toward a distal end of the expandable filter region, the expandable filter region having a collapsed delivery configuration and an expanded configuration; and a balloon catheter comprising a catheter shaft including a first lumen and a second inflation lumen coupled in fluid tight communication to a distal inflatable balloon on the catheter shaft, wherein the distal inflatable balloon has a first collapsed balloon configuration and a second expanded balloon configuration; a balloon expandable stent mounted on the distal inflatable balloon when the distal inflatable balloon is in the first collapsed balloon configuration; and a cardiac valve releasably positioned adjacent the balloon expandable stent over at least a portion of the distal inflatable balloon when the distal inflatable balloon is in the first collapsed balloon configuration, wherein the balloon catheter, balloon expandable stent, and cardiac valve are sized and adapted to pass through the lumen of the tubular shaft and the expandable filter region when the expandable filter region is in the expanded configuration and the distal inflatable balloon is in the first collapsed balloon configuration.