US6231588B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low profile catheter for angioplasty and occlusion
Assignee: Medtronic Vascular Inc
•
Filing: 1998-08-04
•
Granted: 2001-05-15
•
Expires: 2018-08-04
Abstract
Abstract A low profile device for simultaneous angioplasty and occlusion includes an angioplasty balloon and an occlusion element which adjoin a common catheter. The occlusion element may be either self-expanding (in which case it is deployed with a sheath that surrounds the catheter) or non-self-expanding (in which case it is deployed with a pull wire that passes through the catheter). The angioplasty balloon is inflated with fluid that either passes through the catheter or a separate tube (or lumen) that adjoins the catheter.
Inventors
- 👤 Gholam-Reza Zadno-Azizi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:42
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12131; A61B17/12168; A61B17/12172; A61M2025/0004; A61M25/0067; A61M25/0074; A61M2025/0079; A61M2025/1043; A61M2025/1052; A61M2025/1079; A61M25/1011
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
122 words
An angioplasty apparatus, comprising: a catheter; a therapy balloon that adjoins said catheter, in which said balloon is inflatable to permit a stenosis site in a vessel to be enlarged; a mechanically deployed expansion element, said expansion element adjoining said catheter, in which said expansion element is expandable to prevent emboli from moving downstream; a pull wire that deploys said expansion element, in which said catheter surrounds said pull wire, a hole in said catheter so that said catheter and said balloon are in fluid communication, and a sealing member that adjoins said pull wire, said sealing member making an internal seal as said expansion element is deployed to isolate a distal end portion of said catheter from fluid in said balloon.
Claim 2
Dependent Claim
122 words
An angioplasty apparatus, comprising: a catheter; a therapy balloon that adjoins said catheter, in which said balloon is inflatable to permit a stenosis site in a vessel to be enlarged; a mechanically deployed expansion element, said expansion element adjoining said catheter, in which said expansion element is expandable to prevent emboli from moving downstream; a pull wire that deploys said expansion element, in which said catheter surrounds said pull wire, a hole in said catheter so that said catheter and said balloon are in fluid communication, and a sealing member that adjoins said pull wire, said sealing member making an internal seal as said expansion element is deployed to isolate a distal end portion of said catheter from fluid in said balloon.
Claim 3
Dependent Claim
28 words
The apparatus of claim 1 , in which said balloon is in fluid communication with the interior of said catheter, permitting said balloon to be inflated and deflated.
Claim 4
Dependent Claim
24 words
The apparatus of claim 1 , in which said catheter comprises two lumens, one of said lumens being in fluid communication with said balloon.
Claim 5
Dependent Claim
26 words
The apparatus of claim 3 , comprising inner and outer tubes that define said two lumens, said outer tube being in fluid communication with said balloon.
Claim 6
Dependent Claim
47 words
The apparatus of claim 1 , further comprising: a second hole in said catheter; and a hole in said pull wire, wherein fluid can be aspirated from outside of said catheter to pass through said second hole in said catheter and said hole in said pull wire.
Claim 7
Dependent Claim
22 words
The apparatus of claim 5 , comprising at least two lumens, one of said lumens being in fluid communication with said balloon.
Claim 8
Dependent Claim
17 words
The angioplasty apparatus of claim 1 , in which expansion element is located distal to said balloon.
Claim 9
Dependent Claim
17 words
The apparatus of claim 1 , wherein said expansion element is expandable to completely occlude the vessel.
Claim 10
Dependent Claim
23 words
The apparatus of claim 1 , wherein said expansion element includes a membrane that contacts the vessel when said expansion element is expanded.
Claim 11
Dependent Claim
17 words
The apparatus of claim 9 , wherein said membrane is perforated to allow the perfusion of blood.
Claim 12
Dependent Claim
15 words
The apparatus of claim 1 , further comprising a device which retracts said pull wire.
Claim 13
Dependent Claim
21 words
The apparatus of claim 1 , said sealing member contacting a seat that adjoins said catheter to make the internal seal.
Claim 14
Dependent Claim
18 words
The apparatus of claim 1 , wherein said pull wire retracts a distal portion of said expansion element.
Claim 15
Dependent Claim
32 words
The apparatus of claim 13 , comprising a ring member attached to a distal portion of said expansion element, said ring member sliding over said catheter as said pull wire is moved.
Claim 16
Dependent Claim
29 words
The apparatus of claim 14 , further comprising a safety member attached to said catheter, said safety member preventing said ring member from advancing proximally of said safety member.
Claim 17
Dependent Claim
115 words
An angioplasty apparatus, comprising: a catheter, an angioplasty element that adjoins said catheter, in which said angioplasty element is expandable to permit a stenosis site in a vessel to be enlarged; a mechanically deployed occlusion element, said occlusion element adjoining said catheter and located distal to said angioplasty element, in which said occlusion element is expandable to permit the vessel to be at least partially occluded; an opening in said catheter so that said catheter and said angioplasty element are in fluid communication, and a pull wire that deploys said occlusion element and contacts an inner portion of said catheter to isolate a distal end portion of said catheter from fluid in said angioplasty element.
Claim 18
Dependent Claim
115 words
An angioplasty apparatus, comprising: a catheter, an angioplasty element that adjoins said catheter, in which said angioplasty element is expandable to permit a stenosis site in a vessel to be enlarged; a mechanically deployed occlusion element, said occlusion element adjoining said catheter and located distal to said angioplasty element, in which said occlusion element is expandable to permit the vessel to be at least partially occluded; an opening in said catheter so that said catheter and said angioplasty element are in fluid communication, and a pull wire that deploys said occlusion element and contacts an inner portion of said catheter to isolate a distal end portion of said catheter from fluid in said angioplasty element.
Claim 19
Dependent Claim
14 words
The apparatus of claim 16 , in which said angioplasty element includes a balloon.
Claim 20
Dependent Claim
17 words
The apparatus of claim 16 , wherein said expansion element is expandable to completely occlude the vessel.
Claim 21
Dependent Claim
92 words
An angioplasty apparatus, comprising: a catheter; an angioplasty element that adjoins said catheter, said angioplasty element being expandable to enlarge a stenosis site in a vessel. a mechanically deployed expansion element, one end portion of said expansion element adjoining said catheter and another end portion of said expansion element adjoining a member that slides with respect to said catheter, wherein said expansion element is slidable over said catheter, said expansion element preventing emboli from moving downstream when expanded; and a pull wire that expands said expansion element by moving said slidable member.
Claim 22
Dependent Claim
92 words
An angioplasty apparatus, comprising: a catheter; an angioplasty element that adjoins said catheter, said angioplasty element being expandable to enlarge a stenosis site in a vessel. a mechanically deployed expansion element, one end portion of said expansion element adjoining said catheter and another end portion of said expansion element adjoining a member that slides with respect to said catheter, wherein said expansion element is slidable over said catheter, said expansion element preventing emboli from moving downstream when expanded; and a pull wire that expands said expansion element by moving said slidable member.
Claim 23
Dependent Claim
140 words
An angioplasty apparatus, comprising: a catheter; an angioplasty element that adjoins said catheter, said angioplasty element being expandable to enlarge a stenosis site in a vessel, said angioplasty element comprising a balloon, said catheter including a hole such that said catheter and said balloon are in fluid communication; a mechanically deployed expansion element, one end portion of said expansion element adjoining said catheter and another end portion of said expansion element adjoining a member that slides with respect to said catheter, said expansion element preventing emboli from moving downstream when expanded; a pull wire that expands said expansion element by moving said slidable member, and a sealing member that adjoins said pull wire, said sealing member making an internal seal as said expansion element is deployed to isolate a distal end portion of said catheter from fluid in said balloon.
Claim 24
Dependent Claim
140 words
An angioplasty apparatus, comprising: a catheter; an angioplasty element that adjoins said catheter, said angioplasty element being expandable to enlarge a stenosis site in a vessel, said angioplasty element comprising a balloon, said catheter including a hole such that said catheter and said balloon are in fluid communication; a mechanically deployed expansion element, one end portion of said expansion element adjoining said catheter and another end portion of said expansion element adjoining a member that slides with respect to said catheter, said expansion element preventing emboli from moving downstream when expanded; a pull wire that expands said expansion element by moving said slidable member, and a sealing member that adjoins said pull wire, said sealing member making an internal seal as said expansion element is deployed to isolate a distal end portion of said catheter from fluid in said balloon.
Claim 25
Dependent Claim
137 words
An angioplasty apparatus, comprising: a catheter, an angioplasty element that adjoins said catheter, in which said angioplasty element is expandable to permit a stenosis site in a vessel to be enlarged; a mechanically deployed expansion element that adjoins said catheter, said expansion element preventing emboli from moving downstream when expanded; a pull wire that expands said expansion element; an aspiration opening in said catheter, said opening permitting aspiration of a volume between said angioplasty element and said expansion element, said angioplasty element comprising a balloon, said catheter including a second hole, wherein said balloon receives inflation fluid through said second hole; and a sealing member that adjoins said pull wire, said sealing member making an internal seal as said expansion element is deployed to isolate a distal end portion of said catheter from fluid in said balloon.
Claim 26
Dependent Claim
137 words
An angioplasty apparatus, comprising: a catheter, an angioplasty element that adjoins said catheter, in which said angioplasty element is expandable to permit a stenosis site in a vessel to be enlarged; a mechanically deployed expansion element that adjoins said catheter, said expansion element preventing emboli from moving downstream when expanded; a pull wire that expands said expansion element; an aspiration opening in said catheter, said opening permitting aspiration of a volume between said angioplasty element and said expansion element, said angioplasty element comprising a balloon, said catheter including a second hole, wherein said balloon receives inflation fluid through said second hole; and a sealing member that adjoins said pull wire, said sealing member making an internal seal as said expansion element is deployed to isolate a distal end portion of said catheter from fluid in said balloon.
Claim 27
Dependent Claim
111 words
An angioplasty apparatus. comprising: a catheter, an angioplasty element that adjoins said catheter, in which said angioplasty element is expandable to permit a stenosis site in a vessel to be enlarged; a mechanically deployed expansion element that adjoins said catheter, said expansion element preventing emboli from moving downstream when expanded: a pull wire that expands said expansion element: and an aspiration opening in said catheter, said opening permitting aspiration of a volume between said angioplasty element and said expansion element, said pull wire including a hole which is in fluid communication with said aspiration opening, thereby permitting fluid from said volume to be aspirated through a lumen in said pull wire.
Claim 28
Dependent Claim
111 words
An angioplasty apparatus. comprising: a catheter, an angioplasty element that adjoins said catheter, in which said angioplasty element is expandable to permit a stenosis site in a vessel to be enlarged; a mechanically deployed expansion element that adjoins said catheter, said expansion element preventing emboli from moving downstream when expanded: a pull wire that expands said expansion element: and an aspiration opening in said catheter, said opening permitting aspiration of a volume between said angioplasty element and said expansion element, said pull wire including a hole which is in fluid communication with said aspiration opening, thereby permitting fluid from said volume to be aspirated through a lumen in said pull wire.
Claim 29
Dependent Claim
67 words
An angioplasty apparatus, comprising: a catheter: an angioplasty element, said angioplasty element adjoining said catheter and treating a stenosis site in a vessel; an emboli protection element, said emboli protection element adjoining said catheter and preventing the migration of emboli; and a pull wire that activates said emboli protection element while enabling actuation of said angioplasty element, wherein said emboli protection element is slidable over said catheter.
Claim 30
Dependent Claim
67 words
An angioplasty apparatus, comprising: a catheter: an angioplasty element, said angioplasty element adjoining said catheter and treating a stenosis site in a vessel; an emboli protection element, said emboli protection element adjoining said catheter and preventing the migration of emboli; and a pull wire that activates said emboli protection element while enabling actuation of said angioplasty element, wherein said emboli protection element is slidable over said catheter.
Claim 31
Dependent Claim
94 words
An angioplasty apparatus, comprising: a catheter: an angioplasty element, said angioplasty element adjoining said catheter and treating a stenosis site in a vessel; an emboli protection element, said emboli protection element adjoining said catheter and preventing the migration of emboli: a pull wire that activates said emboli protection element while enabling actuation of said angioplasty element; and a sealing member that adjoins said pull wire, said sealing member making an internal seal as said emboli protection element is deployed to isolate a distal end portion of said catheter from fluid in said angioplasty element.
Claim 32
Dependent Claim
94 words
An angioplasty apparatus, comprising: a catheter: an angioplasty element, said angioplasty element adjoining said catheter and treating a stenosis site in a vessel; an emboli protection element, said emboli protection element adjoining said catheter and preventing the migration of emboli: a pull wire that activates said emboli protection element while enabling actuation of said angioplasty element; and a sealing member that adjoins said pull wire, said sealing member making an internal seal as said emboli protection element is deployed to isolate a distal end portion of said catheter from fluid in said angioplasty element.
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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) | 2004-05-14 | 2004-11-13 | 2005-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-14 | 2008-11-13 | 2009-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-14 | 2012-11-13 | 2013-05-15 | $7700.00 | Window Closed / Lapsed |