Integrated embolic protection devices
First Claim
1. An introducer sheath having integrated embolic protection, said introducer sheath comprising:
- an access sheath having a lumen with an open distal end; and
an embolic filter comprising a porous mesh material having a cylindrical outer portion and a conical inner portion defining a collection chamber for captured emboli, the filter having a collapsed configuration and a deployed configuration wherein the collection chamber is defined between an inner surface of the cylindrical outer portion and an outer surface of the conical inner portion and an outer periphery of the cylindrical outer portion of the filter is configured to contact a blood vessel wall to direct blood flow and potential emboli into the collection chamber;
wherein a distal end of the conical inner portion of the mesh is fixedly attached to the open distal end of the access sheath and a distal end of the cylindrical outer portion of the mesh is open and free of attachment to the access sheath, wherein the lumen of the access sheath is available to introduce different devices.
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Accused Products
Abstract
Embolic protection elements are integrated with a catheter or access sheath for any catheter. A catheter with an integrated embolic protection element comprises a catheter shaft, an embolic filter slidably mounted on a distal portion of the shaft, a proximal stop for limiting the proximal movement of the embolic filter, and a distal stop for limiting the distal movement of the embolic filter. The filter comprises a porous mesh material defining a collection chamber for captured emboli and has a collapsed and a deployed configuration. The filter may be collapsed by an access sheath used with the catheter. An access sheath may comprise a tubular main body and an embolic filter mounted on the distal portion of the tubular main body. The embolic filter may evert into the central lumen of the sheath or may be constrained on the exterior of the sheath with a larger diameter outer tube.
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Citations
18 Claims
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1. An introducer sheath having integrated embolic protection, said introducer sheath comprising:
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an access sheath having a lumen with an open distal end; and an embolic filter comprising a porous mesh material having a cylindrical outer portion and a conical inner portion defining a collection chamber for captured emboli, the filter having a collapsed configuration and a deployed configuration wherein the collection chamber is defined between an inner surface of the cylindrical outer portion and an outer surface of the conical inner portion and an outer periphery of the cylindrical outer portion of the filter is configured to contact a blood vessel wall to direct blood flow and potential emboli into the collection chamber; wherein a distal end of the conical inner portion of the mesh is fixedly attached to the open distal end of the access sheath and a distal end of the cylindrical outer portion of the mesh is open and free of attachment to the access sheath, wherein the lumen of the access sheath is available to introduce different devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification