US6632236B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter having radially expandable main body
Assignee: W.L. Gore and Associates Inc
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Filing: 2001-07-26
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Granted: 2003-10-14
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Expires: 2021-07-26
Abstract
Abstract Apparatus for occluding a vessel and enhancing blood flow within a catheter are provided, wherein a catheter comprises a multi-section self-expanding wire weave forming a radially expandable body and an occlusive distal section, covered with an elastomeric polymeric coating, and disposed within an outer sheath. Methods of using the apparatus of the present invention to remove emboli also are provided.
Inventors
- 👤 Michael Hogendijk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:42
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61B; A61B17/00; A61B17/22; A61B17/22031; A61B17/221; A61F; A61F2/00; A61F2/01; A61F2/013; A61B17/00008; A61B17/32; A61B17/3205; A61B17/3207; A61B17/34; A61B17/3417; A61B17/3421; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00292; A61B2017/00743; A61B2017/00778; A61B2017/22051; A61B2017/22065; A61B2017/22067; A61B2017/22069; A61B2017/2215; A61B2017/320716; A61B2217/00; A61B2217/002; A61B2217/005; A61F2/011; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61M1/00; A61M1/84; A61M25/1011; A61M2025/1015; A61M2025/1043; A61M2025/1052; A61M2025/109
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
90 words
Apparatus suitable for removing emboli from a vessel, the apparatus comprising: a catheter having a proximal section configured to extend outside a patient, a hemostatic port disposed on the proximal section, an occlusive distal section, a main body extending therebetween, and a lumen extending therethrough the catheter having a fluid impermeable cover; and an outer sheath disposed to slide longitudinally along the catheter; wherein the main body has a contracted delivery diameter when disposed within the outer sheath and a radially expanded deployed diameter when deployed from the outer sheath.
Claim 2
Dependent Claim
90 words
Apparatus suitable for removing emboli from a vessel, the apparatus comprising: a catheter having a proximal section configured to extend outside a patient, a hemostatic port disposed on the proximal section, an occlusive distal section, a main body extending therebetween, and a lumen extending therethrough the catheter having a fluid impermeable cover; and an outer sheath disposed to slide longitudinally along the catheter; wherein the main body has a contracted delivery diameter when disposed within the outer sheath and a radially expanded deployed diameter when deployed from the outer sheath.
Claim 3
Dependent Claim
13 words
The apparatus of claim 1 wherein the proximal section comprises a fixed diameter.
Claim 4
Dependent Claim
25 words
The apparatus of claim 1 wherein the occlusive distal section comprises a contracted state and an expanded state suitable for occluding flow in a vessel.
Claim 5
Dependent Claim
25 words
The apparatus of claim 3 wherein the occlusive distal section further comprises a wire weave configuration that forms a predetermined shape in the expanded state.
Claim 6
Dependent Claim
40 words
The apparatus of claim 4 wherein the predetermined shape of the occlusive distal section, when deployed, is substantially flush with the vessel wall at a distal portion and tapers in proximally to connect to the main body of the catheter.
Claim 7
Dependent Claim
12 words
The apparatus of claim 4 wherein the occlusive distal section comprises Nitinol.
Claim 8
Dependent Claim
16 words
The apparatus of claim 1 wherein the main body comprises a plurality of individually compressible hoops.
Claim 9
Dependent Claim
14 words
The apparatus of claim 7 wherein the main body consists of a nickel-titanium alloy.
Claim 10
Dependent Claim
17 words
The apparatus of claim 7 wherein the individually compressible hoops are enclosed within an elastomeric polymer coating.
Claim 11
Dependent Claim
16 words
The apparatus of claim 7 further comprising a plurality of linkages connecting the individually compressible hoops.
Claim 12
Dependent Claim
20 words
The apparatus of claim 1 wherein the main body comprises a spiral configuration having a plurality of compressible spiral-shaped wires.
Claim 13
Dependent Claim
14 words
The apparatus of claim 11 wherein the main body consists of a nickel-titanium alloy.
Claim 14
Dependent Claim
17 words
The apparatus of claim 11 wherein the compressible spiral-shaped wires are enclosed within an elastomeric polymer coating.
Claim 15
Dependent Claim
16 words
The apparatus of claim 11 further comprising a plurality of linkages connecting the compressible spiral-shaped wires.
Claim 16
Dependent Claim
17 words
The apparatus of claim 1 wherein the main body spans a greater distance than the proximal section.
Claim 17
Dependent Claim
25 words
The apparatus of claim 1 wherein the diameter of the main body in an expanded state is larger than the diameter of the proximal section.
Claim 18
Dependent Claim
28 words
The apparatus of claim 1 wherein the outer sheath is positioned in a distalmost position to compress the main body and occlusive distal section within the outer sheath.
Claim 19
Independent Claim
104 words
A method for enhancing flow within a catheter, the method comprising: providing a catheter disposed in a contracted state within an outer sheath, the catheter comprising a proximal section configured to extend outside a patient, a hemostatic port disposed on the proximal section, an occlusive distal section, a main body extending therebetween, and a lumen extending therethrough, the catheter having a fluid impermeable cover; inserting the catheter and outer sheath into a patient's vasculature to a desired location; retracting the outer sheath proximally to deploy the occlusive distal section; and further retracting the outer sheath proximally to cause radial expansion of the main body.
Claim 20
Independent Claim
104 words
A method for enhancing flow within a catheter, the method comprising: providing a catheter disposed in a contracted state within an outer sheath, the catheter comprising a proximal section configured to extend outside a patient, a hemostatic port disposed on the proximal section, an occlusive distal section, a main body extending therebetween, and a lumen extending therethrough, the catheter having a fluid impermeable cover; inserting the catheter and outer sheath into a patient's vasculature to a desired location; retracting the outer sheath proximally to deploy the occlusive distal section; and further retracting the outer sheath proximally to cause radial expansion of the main body.
Claim 21
Dependent Claim
25 words
The method of claim 18 further comprising: performing an interventional procedure; and aspirating emboli generated during the interventional procedure into the lumen of the catheter.
Claim 22
Dependent Claim
39 words
The method of claim 19 further comprising: at the conclusion of the interventional procedure, advancing the outer sheath to contract the main body and the occlusive distal section; and withdrawing the catheter and outer sheath from the patient's vasculature.
References Cited (Backward Citations)
US4921478A
Cited
US5011488A
Cited
US5102415A
Cited
US5064435A
Cited
US5102401A
Cited
US5695499A
Cited
US5669927A
Cited
US5549626A
Cited
US5702418A
Cited
US5895399A
Cited
US5997557A
Cited
US6206868B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-10-13 | 2007-04-14 | 2007-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-10-13 | 2011-04-14 | 2011-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-10-13 | 2015-04-14 | 2015-10-14 | $7700.00 | Window Closed / Lapsed |