Patent US6673090B2 successfully refreshed from Google Patents.
US6673090B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percutaneous catheter and guidewire for filtering during ablation of myocardial or vascular tissue
Assignee: Boston Scientific Scimed Inc
•
Filing: 2001-01-22
•
Granted: 2004-01-06
•
Expires: 2021-01-22
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 18:56
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: 20
Claim 1
Independent Claim
94 words
A method for necrotic ablation of ectopic foci, comprising steps of: providing a catheter having a proximal end, a distal end, a necrotizing ablation instrument at the distal end, and a filter proximal the necrotizing ablation instrument; inserting the catheter into a vessel; positioning the filter; positioning the necrotizing ablation instrument adjacent the ectopic foci; expanding the filter; and ablating the ectopic foci, wherein necrotic material released during ablation is captured by the filter; and repositioning the necrotizing ablation instrument axially with respect to the expanded filter while the expanded filter remains in position.
Claim 2
Independent Claim
94 words
A method for necrotic ablation of ectopic foci, comprising steps of: providing a catheter having a proximal end, a distal end, a necrotizing ablation instrument at the distal end, and a filter proximal the necrotizing ablation instrument; inserting the catheter into a vessel; positioning the filter; positioning the necrotizing ablation instrument adjacent the ectopic foci; expanding the filter; and ablating the ectopic foci, wherein necrotic material released during ablation is captured by the filter; and repositioning the necrotizing ablation instrument axially with respect to the expanded filter while the expanded filter remains in position.
Claim 3
Dependent Claim
16 words
The method of claim 1 , wherein the ectopic foci are located in the left atrium.
Claim 4
Dependent Claim
16 words
The method of claim 1 , wherein the ectopic foci are located in the right atrium.
Claim 5
Dependent Claim
16 words
The method of claim 1 , wherein the ectopic foci are located in the pulmonary vein.
Claim 6
Dependent Claim
14 words
The method of claim 1 , wherein the ablation instrument is a thermal ablation.
Claim 7
Dependent Claim
15 words
The method of claim 1 , wherein the ablation instrument is a laser ablation device.
Claim 8
Dependent Claim
15 words
The method of claim 1 , wherein the ablation instrument is a microwave ablation device.
Claim 9
Dependent Claim
13 words
The method of claim 1 , wherein the filter surrounds the ablation instrument.
Claim 10
Dependent Claim
15 words
The method of claim 1 , wherein the filter is disposed proximal the ablation instrument.
Claim 11
Dependent Claim
31 words
The method of claim 9 , wherein the filter has a proximal edge circumferentially in contact with an outer surface of the catheter, and a distal edge which expands radially outward.
Claim 12
Dependent Claim
15 words
The method of claim 1 , wherein the catheter is inserted into the femoral artery.
Claim 13
Dependent Claim
16 words
The method of claim 1 , wherein the catheter is inserted into the right subclavian artery.
Claim 14
Dependent Claim
16 words
The method of claim 1 , wherein the catheter is inserted into the left subclavian atery.
Claim 15
Dependent Claim
25 words
The method of claim 1 , wherein the filter is mounted on a sheath having a lumen which carries the catheter having the ablation instrument.
Claim 16
Dependent Claim
21 words
The method of claim 1 , wherein the catheter includes a lumen communicating with an aspiration port at the distal end.
Claim 17
Dependent Claim
15 words
The method of claim 1 , wherein the catheter is inserted into the femoral vein.
Claim 18
Dependent Claim
15 words
The method of claim 1 , wherein the catheter is inserted into the subclavian vein.
Claim 19
Dependent Claim
17 words
The method of claim 1 , further comprising the step of aspirating material from the aspiration port.
Claim 20
Dependent Claim
25 words
The method of claim 1 , wherein the step of positioning the ablation instrument adjacent the ectopic foci follows the step of positioning the filter.
References Cited (Backward Citations)
US3472230A
Cited
US3592186A
Cited
US3683904A
Cited
US3889657A
Cited
US3952747A
Cited
US3996938A
Cited
US4046150A
Cited
SU764684A1
Cited
DE2821048C2
Cited
GB2020557B
Cited
US4425908A
Cited
US4447227A
Cited
US4643184A
Cited
US5190546A
Cited
US5397345A
Cited
US4631052A
Cited
US4590938A
Cited
DE3417738C2
Cited
US4842579A
Cited
US5135531A
Cited
US4842579B1
Cited
US4619246A
Cited
US4979951A
Cited
US4926858A
Cited
US4580568A
Cited
US4790813A
Cited
US4807626A
Cited
EP0200688A1
Cited
FR2580504B1
Cited
US4706671A
Cited
US4705517A
Cited
US4662885A
Cited
US4650466A
Cited
US4733665B1
Cited
US4733665C2
Cited
US4733665A
Cited
US4790812A
Cited
US4794931A
Cited
USRE33569E
Cited
US4728319A
Cited
US4723549A
Cited
US5104399A
Cited
US4955895A
Cited
US5314444A
Cited
US5041126A
Cited
US4800882A
Cited
US4907336A
Cited
EP0411118A1
Cited
US4857045A
Cited
EP0293605A1
Cited
US4794928A
Cited
US5306286A
Cited
US4867157A
Cited
US4898575A
Cited
US4857046A
Cited
US4873978A
Cited
US4998539A
Cited
US5053044A
Cited
US4921478A
Cited
US4921484A
Cited
US5071425A
Cited
US5011488A
Cited
US4957482A
Cited
US5007896A
Cited
US4950277A
Cited
US4986807A
Cited
US5152777A
Cited
US5087265A
Cited
FR2643250A1
Cited
US4969891A
Cited
US5934284A
Cited
US5102415A
Cited
US5002560A
Cited
US5423742A
Cited
US5100425A
Cited
DE4030998A1
Cited
EP0427429A2
Cited
US5019088A
Cited
US5085662A
Cited
US5195955A
Cited
US5133733A
Cited
EP0771549A2
Cited
US5421832A
Cited
EP0437121B1
Cited
US5007917A
Cited
US5071407A
Cited
US5171233A
Cited
US5100424A
Cited
US5329942A
Cited
EP0472334A1
Cited
US5160342A
Cited
US5108419A
Cited
US5330484A
Cited
EP0472368A2
Cited
US5100423A
Cited
FR2666980B1
Cited
US5449372A
Cited
US5330500A
Cited
US5053008A
Cited
US5152771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-01-05 | 2007-07-07 | 2008-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-01-05 | 2011-07-07 | 2012-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-01-05 | 2015-07-07 | 2016-01-06 | $7700.00 | Window Closed / Lapsed |