Patent US6235044B1 successfully refreshed from Google Patents.
US6235044B1
Expired / Lapsed
US
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Percutaneous catheter and guidewire for filtering during ablation of mycardial or vascular tissue
Assignee: Boston Scientific Scimed Inc
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Filing: 1999-08-04
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Granted: 2001-05-22
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Expires: 2019-08-04
Abstract
Abstract An ablation catheter system for capturing and removing necrotic tissue and thrombi generated during an ablative procedure is disclosed. The catheter typically includes an elongate member, a filtration assembly disposed within the distal region, and an ablation instrument at the distal end. Alternatively, the ablation instrument is carried on the distal end of an ablation catheter, which is disposed within a lumen of the catheter system. The catheter may further include an aspiration port and lumen. Methods of using the devices in preventing distal embolization during ablative procedures are disclosed.
Inventors
- 👤 Jonathan D. Root
- 👤 Kevin Hahnen
- 👤 Tracy D. Maahs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:33
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B18/02; A61B17/00; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2018/00053; A61B2018/00214
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
63 words
A percutaneous catheter for ablation of ectopic foci, comprising: an elongate member having a proximal end and a distal end; an expandable filter mounted on a distal region of the elongate member; means for ablating ectopic foci disposed at the distal end of the elongate member; and wherein during use, the filter is expanded to capture necrosed tissue particles generated during the ablation.
Claim 2
Dependent Claim
63 words
A percutaneous catheter for ablation of ectopic foci, comprising: an elongate member having a proximal end and a distal end; an expandable filter mounted on a distal region of the elongate member; means for ablating ectopic foci disposed at the distal end of the elongate member; and wherein during use, the filter is expanded to capture necrosed tissue particles generated during the ablation.
Claim 3
Dependent Claim
18 words
The catheter of claim 1 , wherein the means for ablating ectopic foci include a thermal ablation device.
Claim 4
Dependent Claim
18 words
The catheter of claim 1 , wherein the means for ablating ectopic foci include a laser ablation device.
Claim 5
Dependent Claim
18 words
The catheter of claim 1 , wherein the means for ablating ectopic foci include a microwave ablation device.
Claim 6
Dependent Claim
13 words
The catheter of claim 1 , wherein the filter surrounds the ablation instrument.
Claim 7
Dependent Claim
15 words
The catheter of claim 1 , wherein the filter is disposed proximal the ablation instrument.
Claim 8
Dependent Claim
32 words
The catheter of claim 6 , wherein the filter has a proximal edge circumferentially in contact with an outer surface of the elongate member, and a distal edge which expands radially outward.
Claim 9
Dependent Claim
18 words
The catheter of claim 1 , wherein the catheter includes a second lumen communicating with an aspiration port.
Claim 10
Dependent Claim
13 words
The catheter of claim 1 , wherein the filter may be a basket.
Claim 11
Dependent Claim
63 words
A percutaneous guiding catheter system for ablation of ectopic foci, comprising: an elongate member having a proximal end, a distal end, and a lumen therebetween; an expandable filter mounted on a distal region of the elongate member; and a catheter comprising means for ablating ectopic foci disposed within the lumen of the elongate member, and having an ablation instrument at its distal end.
Claim 12
Dependent Claim
63 words
A percutaneous guiding catheter system for ablation of ectopic foci, comprising: an elongate member having a proximal end, a distal end, and a lumen therebetween; an expandable filter mounted on a distal region of the elongate member; and a catheter comprising means for ablating ectopic foci disposed within the lumen of the elongate member, and having an ablation instrument at its distal end.
Claim 13
Dependent Claim
18 words
The catheter of claim 10 , wherein the means for ablating ectopic foci include a thermal ablation device.
Claim 14
Dependent Claim
18 words
The catheter of claim 10 , wherein the means for ablating ectopic foci include a laser ablation device.
Claim 15
Dependent Claim
18 words
The catheter of claim 10 , wherein the means for ablating ectopic foci include a microwave ablation device.
Claim 16
Dependent Claim
19 words
The catheter of claim 10 , wherein the ablation instrument extends beyond the distal end of the elongate member.
Claim 17
Dependent Claim
18 words
The catheter of claim 10 , wherein the catheter includes a second lumen communicating with an aspiration port.
Claim 18
Dependent Claim
32 words
The catheter of claim 10 , wherein the filter has a proximal edge circumferentially in contact with an outer surface of the elongate member, and a distal edge which expands radially outward.
Claim 19
Dependent Claim
20 words
The catheter of claim 10 , wherein the proximal end of the catheter is adapted for attachment to a vacuum.
Claim 20
Dependent Claim
12 words
The catheter of claim 10 , wherein the filter is a basket.
Claim 21
Independent Claim
73 words
A method for ablation of ectopic foci, comprising the steps of: providing a catheter having a proximal end, a distal end, an ablation instrument at the distal end, and a filter on a distal region of the elongate member; inserting the catheter into a vessel; positioning the ablation instrument adjacent the ectopic foci; expanding the filter; and ablating the ectopic foci, wherein necrosed tissue particles generated during ablation are captured by the filter.
Claim 22
Independent Claim
73 words
A method for ablation of ectopic foci, comprising the steps of: providing a catheter having a proximal end, a distal end, an ablation instrument at the distal end, and a filter on a distal region of the elongate member; inserting the catheter into a vessel; positioning the ablation instrument adjacent the ectopic foci; expanding the filter; and ablating the ectopic foci, wherein necrosed tissue particles generated during ablation are captured by the filter.
Claim 23
Dependent Claim
16 words
The method of claim 19 , wherein the ectopic foci are located in the left atrium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-05-21 | 2004-11-20 | 2005-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-21 | 2008-11-20 | 2009-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-21 | 2012-11-20 | 2013-05-22 | $7700.00 | Window Closed / Lapsed |