Patent US20030139802A1 successfully refreshed from Google Patents.
US20030139802A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical device
Assignee: Bayer Medical Care Inc
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Filing: 2002-12-06
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Granted: —
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Expires: 2022-12-06
Abstract
Abstract The present invention provides a radially expandable device for use in the occlusion and repair of an undesired dilation in a vessel, such as an aneurysm, while maintaining flow both through the vessel and through branches of the vessel that may be located in proximity to the aneurysm. This is achieved by having a device with a differential pore size, wherein the portion of the device positioned in proximity to the aneurysm is of substantially smaller pore size than that portion of the device positioned away from the aneurysm.
Inventors
- 👤 Edward Wulfman
- 👤 Thomas Clement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:43
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12113; A61B17/12118; A61F2/915; A61F2002/823; A61F2002/91533; A61F2002/91541; A61F2002/9155; A61F2002/91558; A61F2210/00; A61F2210/0076; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2250/00; A61F2250/0014; A61F2250/0023; A61F2250/0024
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
147 words
1 . A device for occlusion of an irregularity in a vessel of a patient's body, comprising: (a) a first structural mesh region having a pore size sufficiently large to permit flow of fluids through the structural mesh region and sized to fit within the vessel and to contact a vessel wall when expanded, the first structural mesh region having a discontinuous, generally tubular configuration; and (b) a second region of smaller pore size provided in association with the structural mesh region, the second region having a surface area at least large enough to cover the irregularity in the vessel and having a pore size sufficiently small to impede flow of fluids into and out from the irregularity; whereby flow of fluids through the vessel and through branches of the vessel located in proximity to the irregularity is maintained when the device is positioned in the vessel.
Claim 2
Dependent Claim
147 words
1 . A device for occlusion of an irregularity in a vessel of a patient's body, comprising: (a) a first structural mesh region having a pore size sufficiently large to permit flow of fluids through the structural mesh region and sized to fit within the vessel and to contact a vessel wall when expanded, the first structural mesh region having a discontinuous, generally tubular configuration; and (b) a second region of smaller pore size provided in association with the structural mesh region, the second region having a surface area at least large enough to cover the irregularity in the vessel and having a pore size sufficiently small to impede flow of fluids into and out from the irregularity; whereby flow of fluids through the vessel and through branches of the vessel located in proximity to the irregularity is maintained when the device is positioned in the vessel.
Claim 3
Dependent Claim
26 words
2 . The device of claim 1 , wherein the structural mesh region comprises at least two ring portions separated from one another by a recess.
Claim 4
Dependent Claim
23 words
3 . The device of claim 2 , wherein the recess area comprises at least 20% of the surface area of the device.
Claim 5
Dependent Claim
26 words
4 . The device of claim 1 , wherein the second region comprises an opaque mesh having an average pore size of less than 500 microns.
Claim 6
Dependent Claim
26 words
5 . The device of claim 3 , wherein the second region comprises an opaque mesh having an average pore size of less than 100 microns.
Claim 7
Dependent Claim
20 words
6 . The device of claim 1 , wherein the structural mesh region and the second region overlie one another.
Claim 8
Dependent Claim
19 words
7 . The device of claim 1 , wherein the structural mesh region is self-expanding under predetermined expansion conditions.
Claim 9
Dependent Claim
27 words
8 . The device of claim 1 , wherein the second region comprises a substantially impermeable layer having an average pore size of less than 100 microns.
Claim 10
Dependent Claim
17 words
9 . The device of claim 8 , comprising at least two spatially separated substantially impermeable layers.
Claim 11
Dependent Claim
26 words
10 . The device of claim 9 , wherein each of the at least two spatially separated substantially impermeable layers is associated with a therapeutic agent.
Claim 12
Dependent Claim
25 words
11 . The device of claim 10 , wherein each of the two spatially separated substantially impermeable layers is associated with a different therapeutic agent.
Claim 13
Dependent Claim
19 words
12 . The device of claim 8 , wherein the substantially impermeable layer is associated with a therapeutic agent.
Claim 14
Dependent Claim
24 words
13 . The device of claim 1 , wherein the second region comprises a substantially impermeable layer comprising a woven or non-woven fabric material.
Claim 15
Dependent Claim
19 words
14 . The device of claim 1 , further comprising at least two second regions of smaller pore size.
Claim 16
Dependent Claim
19 words
15 . The device of claim 1 , wherein the device is associated with at least one therapeutic agent.
Claim 17
Dependent Claim
26 words
16 . The device of claim 15 , wherein the therapeutic agent is selected from the group consisting of: anti-bacterial, anti-thrombogenic, anti-stenosis agents and combinations thereof.
References Cited (Backward Citations)
US6613074B1
Cited
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