Patent US6511503B1 successfully refreshed from Google Patents.
US6511503B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter apparatus for treating occluded vessels and filtering embolic debris and method of use
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 1999-12-30
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Granted: 2003-01-28
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Expires: 2019-12-30
Abstract
Abstract A catheter apparatus includes a lesion dilating member disposable at a lesion position in a vessel (e.g. a patient's artery) which is dilatable to open the vessel at the lesion position. An emboli-capturing assembly having a perfusion member and filter is displaced downstream from the lesion dilating member to capture embolic debris released in the fluid flow. The perfusion member may illustratively have peaks and channels formed between adjacent peaks which cooperate with the filter to create trapping pockets that capture embolic debris. The filter may be made from any flexible and porous material with dimensions to pass the fluid and block the emboli. The perfusion member is thereafter deflated to provide for emboli retention in the perfusion member.
Inventors
- 👤 David H. Burkett
- 👤 Arakady Kokish
- 👤 Chicheng Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:09
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/958; A61F2/01; A61F2/013; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0028; A61F2230/005; A61F2230/0063; A61F2230/0073; A61F2230/008
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
151 words
A catheter apparatus for treating a lesion-blocked vessel and capturing emboli flowing through the vessel, comprising: a lesion dilating member for disposition in the vessel at the position of the lesion blockage, the lesion dilating member being expandable to open the vessel at the position of the lesion, and a perfusion member and filter for disposition in the vessel at a position displaced from the lesion, the perfusion member having proximal and distal ends with the filter attached to the outer surface of the perfusion member at a location distal to the proximal end of the perfusion member, wherein the outer surface of the perfusion member has a plurality of annularly spaced peaks and channels formed between adjacent peaks and the filter to allow the flow of a fluid to pass through the channels and the filter is made from a material which allows the fluid to pass but not emboli.
Claim 2
Dependent Claim
151 words
A catheter apparatus for treating a lesion-blocked vessel and capturing emboli flowing through the vessel, comprising: a lesion dilating member for disposition in the vessel at the position of the lesion blockage, the lesion dilating member being expandable to open the vessel at the position of the lesion, and a perfusion member and filter for disposition in the vessel at a position displaced from the lesion, the perfusion member having proximal and distal ends with the filter attached to the outer surface of the perfusion member at a location distal to the proximal end of the perfusion member, wherein the outer surface of the perfusion member has a plurality of annularly spaced peaks and channels formed between adjacent peaks and the filter to allow the flow of a fluid to pass through the channels and the filter is made from a material which allows the fluid to pass but not emboli.
Claim 3
Dependent Claim
49 words
The catheter apparatus of claim 1 wherein the distance between the peaks and the bottoms of the channels at the start of the coverage of the filter is less than the distance between the peaks and the bottoms of the channels at the distal end of the perfusion member.
Claim 4
Dependent Claim
19 words
The catheter apparatus of claim 1 wherein the perfusion member is expandable from a collapsed to an expanded position.
Claim 5
Dependent Claim
14 words
The catheter apparatus of claim 1 wherein the perfusion member is an expandable member.
Claim 6
Dependent Claim
13 words
The catheter apparatus of claim 4 wherein the expandable member is a balloon.
Claim 7
Dependent Claim
19 words
The catheter apparatus of claim 1 wherein the filter coverage starts substantially near the center of the perfusion member.
Claim 8
Dependent Claim
17 words
The catheter apparatus of claim 1 wherein each channel of the perfusion member has a particular depth.
Claim 9
Dependent Claim
20 words
The catheter apparatus of claim 7 wherein the depth of the channel varies along the length of the perfusion member.
Claim 10
Dependent Claim
100 words
An emboli-capturing device for capturing emboli released into the fluid of a body vessel, comprising: a perfusion member having proximal and distal ends and a filter attached to the outer surface of the perfusion member at a location distal to the proximal end of the perfusion member, wherein the outer surface of the perfusion member has a plurality of annularly spaced peaks and channels formed between adjacent peaks and the filter to allow the flow of a fluid to pass through the channels and the filter is made from a material which allows the fluid to pass but not emboli.
Claim 11
Dependent Claim
100 words
An emboli-capturing device for capturing emboli released into the fluid of a body vessel, comprising: a perfusion member having proximal and distal ends and a filter attached to the outer surface of the perfusion member at a location distal to the proximal end of the perfusion member, wherein the outer surface of the perfusion member has a plurality of annularly spaced peaks and channels formed between adjacent peaks and the filter to allow the flow of a fluid to pass through the channels and the filter is made from a material which allows the fluid to pass but not emboli.
Claim 12
Dependent Claim
49 words
The emboli-capturing device of claim 9 wherein the distance between the peaks and the bottoms of the channels at the start of the coverage of the filter is less than the distance between the peaks and the bottoms of the channels at the distal end of the perfusion member.
Claim 13
Dependent Claim
19 words
The catheter apparatus of claim 9 wherein the perfusion member is expandable from a collapsed to an expanded position.
Claim 14
Dependent Claim
14 words
The catheter apparatus of claim 9 wherein the perfusion member is an expandable member.
Claim 15
Dependent Claim
13 words
The catheter apparatus of claim 12 wherein the expandable member is a balloon.
Claim 16
Dependent Claim
19 words
The catheter apparatus of claim 9 wherein the filter coverage starts substantially near the center of the perfusion member.
Claim 17
Dependent Claim
17 words
The catheter apparatus of claim 9 wherein each channel of the perfusion member has a particular depth.
Claim 18
Dependent Claim
20 words
The catheter apparatus of claim 9 wherein the depth of the channel varies along the length of the perfusion member.
Claim 19
Dependent Claim
18 words
The catheter apparatus of claim 9 wherein the filter is bonded to the peaks of the perfusion member.
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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) | 2006-01-27 | 2006-07-29 | 2007-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-01-27 | 2010-07-29 | 2011-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-01-27 | 2014-07-29 | 2015-01-28 | $7700.00 | Window Closed / Lapsed |