US6152144A
Expired / Lapsed
US
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Method and device for left atrial appendage occlusion
Assignee: Boston Scientific Scimed Inc
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Filing: 1998-11-06
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Granted: 2000-11-28
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Expires: 2018-11-06
Abstract
Abstract A device and method for obliterating or occluding a body cavity or passageway, in particular, the left atrial appendage of a patient's heart. The procedure can be carried out intraoperatively, but is preferably carried out percutaneously by use of a delivery catheter to position an occluding device adjacent a patient's left atrial appendage. The occluding device may prevent the passage of embolic or other material to or from the left atrial appendage by volumetrically filling the appendage, closing the opening of the appendage with an occluding member, or pulling the tissue around the opening of the appendage together and fixing it in a closed state.
Inventors
- 👤 Michael D. Lesh
- 👤 Erik J. van der Burg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:16
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12131; A61B17/12136; A61B17/0057; A61B17/12099; A61B17/12122; A61B17/12168; A61B17/12172; A61B17/12181; A61B17/12186; A61B17/12195; A61B17/122; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00575; A61B2017/00579; A61B2017/00592; A61B2017/00597; A61B2017/00606; A61B2017/00615; A61B2017/00632; A61B17/08; A61B2017/081; A61B2017/1205
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
116 words
A method of occluding a left atrial appendage of a patient comprising: a) providing a device for occluding a body cavity comprising: an occluding member, and a retention member secured to the occluding member; b) providing a delivery catheter having a proximal end and a distal end; c) advancing the delivery catheter percutaneously through the patient's vasculature to a chamber within the patient's left atrium; d) advancing the distal end of the delivery catheter and the device for occluding a body cavity adjacent the left atrial appendage; and e) deploying the device for occluding a body cavity such that the occluding member substantially obstructs the passage of embolic material to and from the left atrial appendage.
Claim 2
Independent Claim
116 words
A method of occluding a left atrial appendage of a patient comprising: a) providing a device for occluding a body cavity comprising: an occluding member, and a retention member secured to the occluding member; b) providing a delivery catheter having a proximal end and a distal end; c) advancing the delivery catheter percutaneously through the patient's vasculature to a chamber within the patient's left atrium; d) advancing the distal end of the delivery catheter and the device for occluding a body cavity adjacent the left atrial appendage; and e) deploying the device for occluding a body cavity such that the occluding member substantially obstructs the passage of embolic material to and from the left atrial appendage.
Claim 3
Dependent Claim
29 words
The method of claim 1 wherein thrombotic or fibrotic material is removed from the patient's left atrial appendage prior to deployment of the device for occluding a body cavity.
Claim 4
Dependent Claim
55 words
The method of claim 2 wherein the thrombotic or fibrotic material is removed from the patient's left atrial appendage by aspiration through an aspiration lumen of a catheter having a port in the distal end thereof in fluid communication with the aspiration lumen which is operatively connected at its proximal end to a vacuum source.
Claim 5
Dependent Claim
64 words
The method of claim 1 wherein the retention member comprises an expandable member configured to engage an inside surface of the left atrial appendage and the device for occluding a body cavity is at least partially deployed by expanding the expandable member within the left atrial appendage so as to engage at least a portion of an inner surface of the left atrial appendage.
Claim 6
Dependent Claim
64 words
The method of claim 1 wherein the retention member comprises a tissue penetrating shaft configured to penetrate and be secured to tissue of the left atrial appendage and the device for occluding a body cavity is at least partially deployed by penetrating the tissue of the left atrial appendage with the tissue penetrating shaft such that the tissue penetrating shaft is mechanically secured thereto.
Claim 7
Dependent Claim
72 words
The method of claim 1, wherein the retention member comprises a shaft having at least one radially extending member extending radially therefrom and configured to engage an inside surface of a patient's left atrial appendage and the device for occluding a body cavity is at least partially deployed by expanding the at least one radially expanding member from a constrained configuration so as to engage the tissue of the left atrial appendage.
Claim 8
Dependent Claim
27 words
The method of claim 6 wherein the at least one radially expanding member is comprised of a pseudoelastic alloy which is self expanding from a constrained configuration.
Claim 9
Dependent Claim
21 words
A method of occluding a left atrial appendage as in claim 1, wherein the occluding member comprises a self expandable frame.
Claim 10
Dependent Claim
19 words
A method of occluding a left atrial appendage as in claim 8, further comprising a barrier on the frame.
Claim 11
Dependent Claim
25 words
A method of occluding a left atrial appendage as in claim 9, wherein the barrier has a pore size of up to about 0.04 inches.
Claim 12
Dependent Claim
31 words
A method of occluding a left atrial appendage as in claim 9, wherein the barrier comprises a polymer selected from the group consisting of Dacron, Nylon, TFE, PTFE, ePTFE, and polyurethane.
Claim 13
Dependent Claim
22 words
A method of occluding a left atrial appendage as in claim 1, wherein the retention member comprises a self expandable wire structure.
Claim 14
Dependent Claim
20 words
A method of occluding a left atrial appendage as in claim 12, further comprising a polymer on the wire structure.
Claim 15
Dependent Claim
27 words
A method of occluding a left atrial appendage as in claim 1, wherein the first advancing step comprises advancing the delivery catheter through the right femoral vein.
Claim 16
Independent Claim
104 words
A method of occluding a left atrial appendage of a patient, comprising the steps of: providing a delivery catheter having a proximal end and a distal end, and a device for occluding a body cavity thereon, the device comprising an occluding member and a retention member secured to the occluding member; advancing the delivery catheter into a chamber within the patient's left atrium; positioning the device for occluding a body cavity adjacent the left atrial appendage; and deploying the device for occluding a body cavity such that the occluding member substantially obstructs the passage of embolic material to and from the left atrial appendage.
Claim 17
Independent Claim
104 words
A method of occluding a left atrial appendage of a patient, comprising the steps of: providing a delivery catheter having a proximal end and a distal end, and a device for occluding a body cavity thereon, the device comprising an occluding member and a retention member secured to the occluding member; advancing the delivery catheter into a chamber within the patient's left atrium; positioning the device for occluding a body cavity adjacent the left atrial appendage; and deploying the device for occluding a body cavity such that the occluding member substantially obstructs the passage of embolic material to and from the left atrial appendage.
Claim 18
Dependent Claim
29 words
The method of claim 15, wherein thrombotic or fibrotic material is removed from the patient's left atrial appendage prior to deployment of the device for occluding a body cavity.
Claim 19
Dependent Claim
55 words
The method of claim 16, wherein the thrombotic or fibrotic material is removed from the patient's left atrial appendage by aspiration through an aspiration lumen of a catheter having a port in the distal end thereof in fluid communication with the aspiration lumen which is operatively connected at its proximal end to a vacuum source.
Claim 20
Dependent Claim
64 words
The method of claim 15, wherein the retention member comprises an expandable member configured to engage an inside surface of the left atrial appendage and the device for occluding a body cavity is at least partially deployed by expanding the expandable member within the left atrial appendage so as to engage at least a portion of an inner surface of the left atrial appendage.
Claim 21
Dependent Claim
64 words
The method of claim 15, wherein the retention member comprises a tissue penetrating shaft configured to penetrate and be secured to tissue of the left atrial appendage and the device for occluding a body cavity is at least partially deployed by penetrating the tissue of the left atrial appendage with the tissue penetrating shaft such that the tissue penetrating shaft is mechanically secured thereto.
Claim 22
Dependent Claim
21 words
A method of occluding a left atrial appendage as in claim 15, wherein the occluding member comprises a self expandable frame.
Claim 23
Dependent Claim
19 words
A method of occluding a left atrial appendage as in claim 20, further comprising a barrier on the frame.
Claim 24
Dependent Claim
31 words
A method of occluding a left atrial appendage as in claim 21, wherein the barrier comprises a polymer selected from the group consisting of Dacron, Nylon, TFE, PTFE, ePTFE, and polyurethane.
Claim 25
Dependent Claim
25 words
A method of occluding a left atrial appendage as in claim 21, wherein the barrier has a pore size of up to about 0.04 inches.
Claim 26
Dependent Claim
22 words
A method of occluding a left atrial appendage as in claim 15, wherein the retention member comprises a self expandable wire structure.
Claim 27
Dependent Claim
20 words
A method of occluding a left atrial appendage as in claim 24, further comprising a polymer on the wire structure.
Claim 28
Dependent Claim
26 words
A method of occluding a left atrial appendage as in claim 15, wherein the advancing step comprises advancing the delivery catheter through the right femoral vein.
Claim 29
Dependent Claim
27 words
A method of occluding a left atrial appendage as in claim 15, wherein the advancing step comprises advancing the delivery catheter to the left atrial appendage intraoperatively.
Claim 30
Dependent Claim
37 words
A method of occluding a left atrial appendage as in claim 15, wherein the device comprises a plurality of tissue engagement members, and the method further comprises the step of engaging tissue with the tissue engagement members.
Claim 31
Dependent Claim
37 words
A method of occluding a left atrial appendage as in claim 1, wherein the device comprises a plurality of tissue engagement members, and the method further comprises the step of engaging tissue with the tissue engagement 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) | 2003-11-28 | 2004-05-29 | 2004-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-28 | 2008-05-29 | 2008-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-28 | 2012-05-29 | 2012-11-28 | $7700.00 | Window Closed / Lapsed |