Filter apparatus for ostium of left atrial appendage
First Claim
1. Apparatus for permanent placement across an ostium of a left atrial appendage in a patient, comprising:
- a filtering membrane configured to extend across the ostium of the left atrial appendage and having a permeable structure which allows blood to flow through the filtering membrane but substantially inhibits thrombus from passing therethrough; and
a support structure defining a first configuration having a substantially cylindrical shape and a second configuration defining a radially enlarged medial portion to permanently engage the interior wall of the left atrial appendage, wherein the filtering membrane is attached to the support structure extending across the ostium of the left atrial appendage, wherein the filtering membrane has a composite construction comprising a filtering section and an elastic section, and wherein the elastic section has an opening to accommodate an intervention device.
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Accused Products
Abstract
Apparatus for permanent placement across an ostium of a left atrial appendage in a patient, which includes a filtering membrane configured to extend across the ostium of the left atrial appendage. The filtering membrane has a permeable structure which allows blood to flow through but substantially inhibits thrombus from passing therethrough. The apparatus also includes a support structure comprising a plurality of fingers which are radially outwardly expandable with respect to a longitudinal axis to permanently engage the interior wall of the left atrial appendage, wherein the filtering membrane is attached to the support structure extending across the ostium of the left atrial appendage.
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Citations
9 Claims
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1. Apparatus for permanent placement across an ostium of a left atrial appendage in a patient, comprising:
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a filtering membrane configured to extend across the ostium of the left atrial appendage and having a permeable structure which allows blood to flow through the filtering membrane but substantially inhibits thrombus from passing therethrough; and
a support structure defining a first configuration having a substantially cylindrical shape and a second configuration defining a radially enlarged medial portion to permanently engage the interior wall of the left atrial appendage, wherein the filtering membrane is attached to the support structure extending across the ostium of the left atrial appendage, wherein the filtering membrane has a composite construction comprising a filtering section and an elastic section, and wherein the elastic section has an opening to accommodate an intervention device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification