US6689150B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter apparatus for ostium of left atrial appendage
Assignee: Boston Scientific Scimed Inc
•
Filing: 2000-07-11
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Granted: 2004-02-10
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Expires: 2020-07-11
Abstract
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 attached to the filtering membrane which retains the filtering membrane in position across the ostium of the left atrial appendage by permanently engaging a portion of the interior wall of the left atrial appendage. The support structure may be radially expandable from a first configuration to a second configuration which engages the ostium or the interior wall of the left atrial appendage. The filtering membrane may define an opening therethrough that is configured to expand from a first size which inhibits the passage of thrombus therethrough to a second size which allows an interventional device, e.g., an expansion balloon, to pass therethrough, and wherein the opening is resiliently biased towards the first size.
Inventors
- 👤 Robert A. VanTassel
- 👤 Robert G. Hauser
- 👤 Robert Schwartz
- 👤 David Holmes
- 👤 Gregg S. Sutton
- 👤 Thomas E. Borillo
- 👤 Jeffrey Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:29
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12122; A61B17/12131; A61B17/12136; A61B17/12159; A61B17/12168; A61B17/12172; A61F; A61F2/00; A61F2/01; A61F2/0105; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00575; A61B2017/00597; A61B2017/00619; A61B2017/00632; A61B2017/1205; A61F2/0103; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0028; A61F2230/005; A61F2230/0063; A61F2230/0067; A61F2230/0069; A61F2230/0073; A61F2230/0076; A61F2230/0078; A61F2230/008; A61F2230/0093
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
154 words
A method of filtering the flow of blood between an atrium and a left atrial appendage of a patient comprising: providing a filtering membrane having a permeable structure which allows blood to flow through the filtering membrane but substantially inhibits thrombus from passing therethrough, and a support structure attached to the filtering membrane configured to permanently engage a portion of an ostium and an interior wall of the left atrial appendage; positioning the filtering membrane across the ostium by permanently engaging the portion of the interior wall of the left atrial appendage with the support structure; and filtering blood flow through the ostium with the filtering membrane such that blood may flow through the filtering membrane while thrombus is substantially inhibited from passing therethrough, wherein the support structure comprises a plurality of retaining members, and wherein positioning the filtering membrane further comprises piercing the wall of the left atrial appendage with the retaining members.
Claim 2
Independent Claim
154 words
A method of filtering the flow of blood between an atrium and a left atrial appendage of a patient comprising: providing a filtering membrane having a permeable structure which allows blood to flow through the filtering membrane but substantially inhibits thrombus from passing therethrough, and a support structure attached to the filtering membrane configured to permanently engage a portion of an ostium and an interior wall of the left atrial appendage; positioning the filtering membrane across the ostium by permanently engaging the portion of the interior wall of the left atrial appendage with the support structure; and filtering blood flow through the ostium with the filtering membrane such that blood may flow through the filtering membrane while thrombus is substantially inhibited from passing therethrough, wherein the support structure comprises a plurality of retaining members, and wherein positioning the filtering membrane further comprises piercing the wall of the left atrial appendage with the retaining members.
Claim 3
Dependent Claim
44 words
The method defined in claim 1 , wherein the support structure further comprises a centering structure extending from the filtering membrane, and wherein positioning the filtering membrane further comprises centering the filtering membrane over the ostium by passing the centering structure into the ostium.
Claim 4
Dependent Claim
39 words
The method as defined in claim 1 , wherein the retaining members comprise an expandable structure, and wherein the positioning the filtering membrane further comprises expanding the expandable structure to engage an interior wall of the left atrial appendage.
Claim 5
Independent Claim
156 words
A method of filtering the flow of blood between an atrium and a left atrial appendage of a patient comprising: providing a filtering membrane having a permeable structure which allows blood to flow through the filtering membrane but substantially inhibits thrombus from passing therethrough, and a support structure attached to the filtering membrane configured to permanently engage a portion of an ostium and an interior wall of the left atrial appendage; positioning the filtering membrane across the ostium by permanently engaging the portion of the interior wall of the left atrial appendage with the support structure; and filtering blood flow through the ostium with the filtering membrane such that blood may flow through the filtering membrane while thrombus is substantially inhibited from passing therethrough, wherein the support structure comprises a plurality of retaining members, and wherein positioning the filtering membrane further comprises atraumatically engaging the interior wall of the left atrial appendage with the retaining members.
Claim 6
Independent Claim
156 words
A method of filtering the flow of blood between an atrium and a left atrial appendage of a patient comprising: providing a filtering membrane having a permeable structure which allows blood to flow through the filtering membrane but substantially inhibits thrombus from passing therethrough, and a support structure attached to the filtering membrane configured to permanently engage a portion of an ostium and an interior wall of the left atrial appendage; positioning the filtering membrane across the ostium by permanently engaging the portion of the interior wall of the left atrial appendage with the support structure; and filtering blood flow through the ostium with the filtering membrane such that blood may flow through the filtering membrane while thrombus is substantially inhibited from passing therethrough, wherein the support structure comprises a plurality of retaining members, and wherein positioning the filtering membrane further comprises atraumatically engaging the interior wall of the left atrial appendage with the retaining members.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-02-09 | 2007-08-11 | 2008-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-02-09 | 2011-08-11 | 2012-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-02-09 | 2015-08-11 | 2016-02-10 | $7700.00 | Window Closed / Lapsed |