US20030191526A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barrier device for ostium of left atrial appendage
Assignee: Boston Scientific Scimed Inc
•
Filing: 2003-03-27
•
Granted: —
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Expires: 2023-03-27
Abstract
Abstract A membrane applied to the ostium of an atrial appendage for blocking blood from entering the atrial appendage which can form blood clots therein is disclosed. The membrane also prevents blood clots in the atrial appendage from escaping therefrom and entering the blood stream which can result in a blocked blood vessel, leading to strokes and heart attacks. The membranes are percutaneously installed in patients experiencing atrial fibrillations and other heart conditions where thrombosis may form in the atrial appendages. A variety of means for securing the membranes in place are disclosed. The membranes may be held in place over the ostium of the atrial appendage or fill the inside of the atrial appendage. The means for holding the membranes in place over the ostium of the atrial appendages include prongs, stents, anchors with tethers or springs, disks with tethers or springs, umbrellas, spiral springs filling the atrial appendages, and adhesives. After the membrane is in place a filler substance may be added inside the atrial appendage to reduce the volume, help seal the membrane against the ostium or clot the blood in the atrial appendage. The membranes may have anticoagulants to help prevent thrombosis. The membranes be porous such that endothelial cells cover the membrane presenting a living membrane wall to prevent thrombosis. The membranes may have means to center the membranes over the ostium. Sensors may be attached to the membrane to provide information about the patient.
Inventors
- 👤 Robert Van Tassel
- 👤 Robert Hauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:24
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/0057; A61B17/12099; A61B17/12122; A61B17/12131; A61B17/12136; A61B17/12159; A61B17/12168; A61B17/12172; A61B17/12181; A61B17/12186; A61B17/00234; A61B2017/00017; A61B2017/00022; A61B2017/00039; A61B2017/00044; A61B2017/00238; A61B2017/00243; A61B2017/00641; A61B2017/1205; A61B90/00; A61B90/06; A61B2090/064; A61F; A61F2/00; A61F2/01; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0063; A61F2230/0069; A61F2230/0073; A61F2230/008
Claims Analysis
Total Claims: 86
Claim 1
Independent Claim
41 words
1 . A method of preventing atrial appendage thrombus from entering the blood stream comprising: blocking an atrial appendage ostium with a membrane preventing blood from entering the atrial appendage and forming thrombus therein and preventing thrombosis formed therein from leaving.
Claim 2
Dependent Claim
41 words
1 . A method of preventing atrial appendage thrombus from entering the blood stream comprising: blocking an atrial appendage ostium with a membrane preventing blood from entering the atrial appendage and forming thrombus therein and preventing thrombosis formed therein from leaving.
Claim 3
Dependent Claim
43 words
2 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: securing the membrane over the ostium of the atrial appendage by extending prongs from the membrane into the atrial appendage through the ostium.
Claim 4
Dependent Claim
42 words
3 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 2 further comprising: piercing the wall of the atrial appendage with the prongs extending into the atrial appendage wall to secure the membrane in place.
Claim 5
Dependent Claim
40 words
4 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 2 further comprising: attaching bulbs on the ends of the prongs to prevent puncturing the interior of the atrial appendages from causing emboli.
Claim 6
Dependent Claim
55 words
5 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 2 flirter comprising: centering the membrane over the ostium by prongs attached to the membrane in a circle such that the prongs will position the membrane over the ostium without leaving gaps between the ostium and the membrane.
Claim 7
Dependent Claim
44 words
6 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 2 further comprising: extending a stent between the membrane and the prongs to engage the ostium of the atrial appendage for securing the membrane to the ostium.
Claim 8
Dependent Claim
42 words
7 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 6 further comprising: piercing the wall of the atrial appendage with the prongs extending into the atrial appendage wall to secure the membrane in place.
Claim 9
Dependent Claim
57 words
8 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: securing the membrane over the ostium of the atrial appendage by extending stent legs into the atrial appendage through the ostium of the atrial appendage to hold the membrane snuggly against the ostium of the atrial appendage.
Claim 10
Dependent Claim
65 words
9 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim further comprising: securing the membrane over the ostium of the atrial appendage by extending an anchor into or through the wall of the atrial appendage and attaching a tether between the atrial appendage and the membrane for holding the membrane snuggly against the ostium of the atrial appendage.
Claim 11
Dependent Claim
35 words
10 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 9 further comprising: providing an elastic tether for sealing the membrane over the ostium of the atrial appendage.
Claim 12
Dependent Claim
63 words
11 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: securing the membrane over the ostium of the atrial appendage by inserting an anchor in the wall of the atrial appendage and attaching a spring between the anchor and the atrial appendage to urge the membrane against the ostium of the trial appendage.
Claim 13
Dependent Claim
47 words
12 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: providing a spiral spring connected to the membrane, for a snug filling of the atrial appendage, and sealing the membrane over the ostium of the atrial appendage.
Claim 14
Dependent Claim
31 words
13 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: securing the membrane over the ostium of the atrial appendage adhesively.
Claim 15
Dependent Claim
64 words
14 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: securing the membrane over the ostium of the atrial appendage by extending a disk through the wall of the atrial appendage and attaching a tether between the atrial appendage and the membrane for holding the membrane snuggly against the ostium of the atrial appendage.
Claim 16
Dependent Claim
36 words
15 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 14 further comprising: employing an elastic tether for urging the membrane snuggly against the ostium of the atrial appendage.
Claim 17
Dependent Claim
64 words
16 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: attaching the membrane to the ostium of the atrial appendage by extending a disk through the wall of the atrial appendage and attaching a spring between the atrial appendage and the membrane for urging the membrane snuggly against the ostium of the atrial appendage.
Claim 18
Dependent Claim
35 words
17 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: vacuuming the atrial appendage for removing thrombus from therein and for collapsing the atrial membrane.
Claim 19
Dependent Claim
34 words
18 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: blocking the atrial appendage ostium by filling the atrial appendage with a membrane material.
Claim 20
Dependent Claim
122 words
19 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: securing the membrane over the ostium of the atrial appendage by extending a plurality of umbrella struts on an umbrella pole into the atrial appendage while the umbrella struts are in a closed position and opening the umbrella struts in the atrial appendage such that the umbrella struts engage the atrium appendage wall and can not be withdrawn through the ostium then moving the membrane on the umbrella pole to secure it in position on the opposing-side of the ostium holding the ostium wall between the membrane and the umbrella struts thus securing the membrane over the ostium of the atrial appendage.
Claim 21
Dependent Claim
79 words
20 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: attaching the membrane to the ostium of the atrial appendage by extending a collapsible stent into the ostium such that the stent expands and engages the circumference of the ostium and attaching a collapsible membrane across the lumen of the stent such that opening the stent stretches the membrane across the lumen of the stent thus blocking the ostium.
Claim 22
Dependent Claim
30 words
21 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: coating the membrane with an anticoagulant drug to prevent thrombosis.
Claim 23
Dependent Claim
44 words
22 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: providing a porous membrane for encouraging endothelial cells to grow in the membrane thus providing a cell wall over the membrane to prevent thrombosis.
Claim 24
Dependent Claim
38 words
23 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: injecting a sealant material into the atrial appendage to seal the membrane against the ostium to prevent leakage.
Claim 25
Dependent Claim
36 words
24 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: injecting a filler material into the atrial appendage to reduce the volume of the atrial appendage.
Claim 26
Dependent Claim
44 words
25 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: injecting a blood coagulating substance into the atrial appendage to clot the blood therein and prevent it from flowing out of the atrial appendage.
Claim 27
Dependent Claim
39 words
26 . A method of preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: injecting an ablative chemical into the atrial appendage to ablate myocardial tissue thus preventing electrical propagation of atrial fibrillation.
Claim 28
Dependent Claim
39 words
27 . A method for preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: providing a means for centering the membrane over the ostium of the atrial appendage to provide a good seal.
Claim 29
Dependent Claim
45 words
28 . A method for preventing atrial appendage thrombus from entering the blood stream as in claim 27 wherein the means for centering the membrane over the ostium comprises: attaching a centering rim to the membrane for insertion into the ostium of the atrial appendage.
Claim 30
Dependent Claim
103 words
29 . A method for preventing atrial appendage thrombus from entering the blood stream as in claim 27 wherein the means for centering the membrane over the ostium comprises: attaching a centering rim to the membrane for insertion into the ostium of the atrial appendage, attaching a securing means to the wall of the atrial appendage and connecting the securing means a spring between the securing means and the membrane to urge the membrane against the ostium of the atrial appendage, attaching a plurality of cables from the spring to the membrane to center the membrane over the ostium of the atrial appendage.
Claim 31
Dependent Claim
107 words
30 . A method for preventing atrial appendage thrombus from entering the blood stream as in claim 27 wherein the means for centering the membrane over the ostium comprises: attaching a centering rim to the membrane for insertion into the ostium of the atrial appendage, attaching a securing means to the wall of the axial appendage and connecting the securing means a spring between the securing means and the membrane to urge the membrane against the ostium of the atrial appendage, attaching a plurality of cables from the spring to the centering rim of the membrane to center the membrane over the ostium of the atrial appendage.
Claim 32
Dependent Claim
88 words
31 . A method for preventing atrial appendage thrombus from entering the blood steam as in claim 27 wherein the means for centering the membrane over the ostium comprises: attaching a securing means to the wall of the atrial appendage and connecting the securing means a spring between the securing means and the membrane to urge the membrane against the ostium of the atrial appendage, attaching a plurality of cables from the spring to the membrane to center the a membrane over the ostium of the atrial appendage.
Claim 33
Dependent Claim
107 words
32 . A method for preventing atrial appendage thrombus from entering the blood stream as in claim 27 wherein the means for centering the membrane over the ostium comprises: attaching a centering rim to the membrane for insertion into the ostium of the atrial appendage, attaching a securing means to the wall of the atrial appendage and connecting the securing means a tether between the securing means and the membrane to urge the membrane against the ostium of the atrial appendage, attaching a plurality of cables from the tether to the centering rim of the membrane to center the membrane over the ostium of the atrial appendage.
Claim 34
Dependent Claim
87 words
33 . A method for preventing atrial appendage thrombus from entering the blood stream as in claim 27 wherein the means for centering the membrane over the ostium comprises: attaching a securing means to the wall of the atrial appendage and connecting the securing means a tether between the securing means and the membrane to urge the membrane against the ostium of the atrial appendage, attaching a plurality of cables from the tether to the membrane to center the membrane over the ostium of the atrial appendage.
Claim 35
Dependent Claim
103 words
34 . A method for preventing atrial appendage thrombus from entering the blood stream as in claim 27 wherein the means for centering the membrane over the ostium comprises: attaching a centering rim to the membrane for insertion into the ostium of the atrial appendage, attaching a securing means to the wall of the atrial appendage and connecting the securing means a tether between the securing means and the membrane to urge the membrane against the ostium of the atrial appendage, attaching a plurality of cables from the tether to the membrane to center the membrane over the ostium of the atrial appendage.
Claim 36
Dependent Claim
43 words
35 . A method for preventing atrial appendage thrombus from entering the blood steam as in claim 1 further comprising: attaching markers to the membrane for observing the position of the membrane as it is placed in the ostium of the atrial appendage.
Claim 37
Dependent Claim
31 words
36 . A method for preventing atrial appendage thrombus from entering the blood stream as in claim 1 further comprising: attaching sensors to the membrane for providing information about the patient.
Claim 38
Dependent Claim
45 words
37 . A membrane for blocking an atrial appendage ostium comprising: a membrane, a means for blocking the ostium of the atrial appendage with the membrane such that no blood enters the atrial appendage to from a thrombus and no thrombus escapes the atrial appendage.
Claim 39
Dependent Claim
45 words
37 . A membrane for blocking an atrial appendage ostium comprising: a membrane, a means for blocking the ostium of the atrial appendage with the membrane such that no blood enters the atrial appendage to from a thrombus and no thrombus escapes the atrial appendage.
Claim 40
Dependent Claim
60 words
38 . A membrane for blocking the ostium of an atrial appendage ostium as in claim 37 wherein: the means for blocking the atrial appendage comprises a membrane over the ostium, the membrane having a plurality of prongs extending through the ostium and hugging the walls of the atrial appendage such that the membrane is held firmly over the ostium.
Claim 41
Dependent Claim
39 words
39 . A membrane for blocking an atrial appendage ostium as in claim 38 wherein: memory alloy prongs are used to expand to the desired shape inside of the atrial appendage to firmly hold the membrane over the ostium.
Claim 42
Dependent Claim
36 words
40 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: a bulb on the tip of each of the prongs prevents embolisms caused by the prongs impaling the atrial appendage walls.
Claim 43
Dependent Claim
28 words
41 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the prongs pierce the atrial appendage wall to secure the membrane in place.
Claim 44
Dependent Claim
36 words
42 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the prongs are attached to the membrane in a circle such that the prongs will center the membrane over the ostium.
Claim 45
Dependent Claim
43 words
43 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: a stent between the membrane and the prongs engages the diameter of the ostium of the atrial appendage and holds the membrane securely in place over the ostium.
Claim 46
Dependent Claim
28 words
44 . A membrane for blocking an atrial appendage ostium as in claim 43 wherein: the prongs pierce the atrial appendage wall to secure the membrane in place.
Claim 47
Dependent Claim
45 words
45 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the means for blocking the ostium comprises, a plurality of stent legs attached to the membrane and extending inside of the atrial appendage through the ostium of the atrial appendage.
Claim 48
Dependent Claim
40 words
46 . A membrane for blocking an atrial appendage ostium as in claim 45 wherein: memory alloy stent legs are used to expand to the desired shape inside of the atrial appendage to firmly hold the membrane over the ostium.
Claim 49
Dependent Claim
54 words
47 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the means for blocking the ostium comprises, an anchor into or through the wall of the atrial appendage and a tether connecting the anchor and the membrane to securely hd the membrane over the ostium of the atrial appendage.
Claim 50
Dependent Claim
31 words
48 . A membrane for blocking an atrial appendage ostium as in claim 47 wherein: the tether is elastic for securely drawing the membrane against the ostium of the atria appendage.
Claim 51
Dependent Claim
54 words
49 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the means for blocking the ostium comprises, an anchor into or through the wall of the atrial appendage and a spring connecting the anchor and the membrane to securely hold the membrane over the ostium of the atrial appendage.
Claim 52
Dependent Claim
45 words
50 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the means for blocking the ostium comprises a spiral spring filling the atrial appendage and connected the membrane to securely hold the membrane over the ostium of the atrial appendage.
Claim 53
Dependent Claim
38 words
51 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the means for blocking the ostium comprises an adhesive on the membrane for securing the membrane over the ostium of the atrial membrane.
Claim 54
Dependent Claim
33 words
52 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: a vacuum removes thrombus from the atrial appendage and reduces the volume of the atrial appendage by suction.
Claim 55
Dependent Claim
56 words
53 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the means for blocking the ostium comprises, an disk on the opposite side of the wall of the atrial appendage and a spring connecting the disk and the membrane to securely hold the membrane over the ostium of the atrial appendage.
Claim 56
Dependent Claim
56 words
54 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the means for blocking the ostium comprises, an disk on the opposite side of the wall of the atrial appendage and a tether connecting the disk and the membrane to securely hold the membrane over the ostium of the atrial appendage.
Claim 57
Dependent Claim
29 words
55 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the means for blocking the ostium comprises a membrane material filling the atrial appendage.
Claim 58
Dependent Claim
156 words
56 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the means for blocking the ostium comprises a pole having a plurality of umbrella struts at one end, an umbrella strut opening mechanism for extending the umbrella struts from a closed position with the umbrella struts adjacent the pole to an open position with the umbrella struts extending radially away from the pole, such that the umbrella struts may be inserted through the ostium of an atrial appendage in the closed position and then opened such that the umbrella struts engage the atrial appendage wall and can not be removed from the ostium, the pole having a plurality of teeth, a pawl in the membrane for forming a ratchet in combination with the teeth to move the membrane along a length of the pole into a locked position securing it against the ostium of the atrial appendage opposite the umbrella struts.
Claim 59
Dependent Claim
70 words
57 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the means for blocking the ostium a collapsible stent for insertion into the ostium such that the stent expands and engages the circumference of the ostium and attaching a collapsible membrane across the lumen of the stent such that opening the stent stretches the membrane across the lumen of the stent thus blocking the ostium.
Claim 60
Dependent Claim
24 words
58 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: an anticoagulant drug on the membrane to prevent thrombosis.
Claim 61
Dependent Claim
33 words
59 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: an ablative chemical injected into the atrial appendage ablates myocardial tissue thus preventing electrical propagation of atrial fibrillation.
Claim 62
Dependent Claim
44 words
60 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the membrane is a porous membrane to encourage endothelial cells to grow in the pores of the membrane thus providing a cell wall over the membrane to prevent thrombosis.
Claim 63
Dependent Claim
44 words
61 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the membrane is a metal mesh to encourage endothelial cells to grow in the pores of the membrane thus providing a cell wall over the membrane to prevent thrombosis.
Claim 64
Dependent Claim
26 words
62 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: a substance in the atrial appendage seals the membrane against leakage.
Claim 65
Dependent Claim
29 words
63 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: a substance in the atrial appendage fills the atrial appendage and reducing its volume.
Claim 66
Dependent Claim
34 words
64 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: a coagulant in the atrial appendage coagulates the blood therein such that it can not escape the atrial appendage.
Claim 67
Dependent Claim
31 words
65 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein: the membrane has a means for centering the membrane over the ostium of the trial appendage.
Claim 68
Dependent Claim
36 words
66 . A membrane for blocking an atrial appendage ostium as in claim 65 wherein the means for centering the membrane over the ostium comprises: a centering rim on the membrane for placement in the ostium.
Claim 69
Dependent Claim
67 words
67 . A membrane for blocking an atrial appendage ostium as in claim 65 wherein the means for centering the membrane over the ostium comprises: a means for securing a spring to a wall of the atrial appendage and securing the other end of the spring to the membrane, a plurality of cables on the spring connected to the membrane for centering the membrane over the ostium.
Claim 70
Dependent Claim
68 words
68 . A membrane for blocking an atrial appendage ostium as in claim 65 wherein: a centering rim on the membrane for placement in the ostium, a means of securing a spring to a wall of the atrial appendage and securing the other end of the spring to the membrane, a plurality of cables on the spring connected to the membrane for centering the membrane over the ostium.
Claim 71
Dependent Claim
72 words
69 . A membrane for blocking an, atrial appendage ostium as in claim 65 wherein: a centering rim on the membrane for placement in the ostium, a means of securing a spring to a wall of the atrial appendage and securing the other end of the spring to the membrane, a plurality of cables on the spring connected to the centering rim on the membrane for centering the membrane over the ostium.
Claim 72
Dependent Claim
67 words
70 . A membrane for blocking an atrial appendage ostium as in claim 65 wherein the means for centering the membrane over the ostium comprises: a means for securing a tether to a wall of the atrial appendage and securing the other end of the tether to the membrane, a plurality of cables on the tether connected to the membrane for centering the membrane over the ostium.
Claim 73
Dependent Claim
68 words
71 . A membrane for blocking an atrial appendage ostium as in claim 65 wherein: a centering rim on the membrane for placement in the ostium, a means of securing a tether to a wall of the atrial appendage and securing the other end of the tether to the membrane, a plurality of cables on the tether connected to the membrane for centering the membrane over the ostium.
Claim 74
Dependent Claim
71 words
72 . A membrane for blocking an atrial appendage ostium as in claim 65 wherein: a centering rim on the membrane for placement in the ostium, means of securing a tether to a wall of the atrial appendage and securing the other end of the tether to the membrane, a plurality of cables on the tether connected to the centering rim on the membrane for centering the membrane over the ostium.
Claim 75
Dependent Claim
48 words
73 . A membrane for blocking an atrial appendage ostium as in claim 65 wherein the means for centering the membrane over the ostium comprises: makers attached to the membrane for observing the position of the membrane as it is placed in the ostium of the atrial appendage.
Claim 76
Dependent Claim
27 words
74 . A membrane for blocking an atrial appendage ostium as in claim 37 wherein, at least one sensor attached to the membrane for monitoring a patient.
Claim 77
Dependent Claim
59 words
75 . A method of obstructing openings in the body of a patient comprising: non invasively inserting membranes in the openings by use of catheters to block the opening, securing the membrane in place by the membrane lodging against the opening and providing a means for attaching the membrane to body tissue on the opposite side of the opening.
Claim 78
Dependent Claim
59 words
75 . A method of obstructing openings in the body of a patient comprising: non invasively inserting membranes in the openings by use of catheters to block the opening, securing the membrane in place by the membrane lodging against the opening and providing a means for attaching the membrane to body tissue on the opposite side of the opening.
Claim 79
Dependent Claim
26 words
76 . A method of obstructing openings in the body of a patient as in claim 75 further comprising: securing the membrane over a false aneurysm.
Claim 80
Dependent Claim
25 words
77 . A method of obstructing openings in the body of a patient as in claim 75 further comprising: securing the membrane over a fistulae.
Claim 81
Dependent Claim
29 words
78 . A method of obstructing openings in the body of a patient as in claim 75 further comprising: securing the membrane over an ostium of an atrial appendage.
Claim 82
Dependent Claim
56 words
79 . A membrane for obstructing openings in the body of a patient comprising: a membrane, a means for securing the membrane over the opening by placing the membrane on one side of the opening and a means for securing a connecting element to body tissue on the opposite side of the opening from the membrane.
Claim 83
Dependent Claim
56 words
79 . A membrane for obstructing openings in the body of a patient comprising: a membrane, a means for securing the membrane over the opening by placing the membrane on one side of the opening and a means for securing a connecting element to body tissue on the opposite side of the opening from the membrane.
Claim 84
Dependent Claim
26 words
80 . A membrane for obstructing openings in the body of a patient as in claim 79 wherein: a false aneurysm is covered by the membrane.
Claim 85
Dependent Claim
25 words
81 . A membrane for obstructing openings in the body of a patient as in claim 79 wherein: a fistulae is covered by the membrane.
Claim 86
Dependent Claim
29 words
82 . A membrane for obstructing openings in the body of a patient as in claim 79 wherein an ostium of an atrial appendage is covered by the membrane.
References Cited (Backward Citations)
US6551303B1
Cited
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