US6235025B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for the treatment of atrial arrhythmia
Assignee: St Jude Medical Atrial Fibrillation Division Inc
•
Filing: 1999-03-30
•
Granted: 2001-05-22
•
Expires: 2019-03-30
Abstract
Abstract A process for the treatment of atrial arrhythmia by use of ablation procedures comprising circumferential ablation of vessels, particularly pulmonary veins associated with the left atrium of the heart. Also disclosed are medical devices used for formation of the circumferential ablation lesions in vessels associated with the heart.
Inventors
- 👤 John F. Swartz
- 👤 Michael C. Bednarek
- 👤 Richard E. Stehr
- 👤 Michael J. Coyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:00
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61M; A61M25/00; A61M25/10; A61M25/1011; A61B2018/00053; A61B2018/00214; A61B2018/0022; A61B2018/0025; A61B2018/00261; A61B2018/00273; A61B2018/00279; A61B2018/00315; A61B2018/00333; A61B2018/00345; A61B2018/00351; A61B2018/00375; A61B2018/00571; A61B2018/00577; A61B2018/1405; A61B2018/1435; A61B2018/1472; A61M2025/1043; A61M2025/1052
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
157 words
A medical device for ablation within a vessel associated with a human heart comprising a. a catheter, b. a first seal secured to the catheter, to seal the vessel and substantially prevent the flow of blood around the first seal through the vessel, c. a second seal secured to the catheter, located proximal to the first seal, d. an introduction member secured to the catheter, to introduce a conductive medium into a space in the vessel located between the first or second seals, and e. an ablating member secured to the catheter, for ablating tissue within the vessel between the first and second seals, whereby during the ablation procedure, the second seal is structured to encourage a flow of the conductive medium around the second seal away from the space between the first and second seals when conductive medium is introduced into that space, yet substantially limit backflow of blood around the second seal into that space.
Claim 2
Dependent Claim
157 words
A medical device for ablation within a vessel associated with a human heart comprising a. a catheter, b. a first seal secured to the catheter, to seal the vessel and substantially prevent the flow of blood around the first seal through the vessel, c. a second seal secured to the catheter, located proximal to the first seal, d. an introduction member secured to the catheter, to introduce a conductive medium into a space in the vessel located between the first or second seals, and e. an ablating member secured to the catheter, for ablating tissue within the vessel between the first and second seals, whereby during the ablation procedure, the second seal is structured to encourage a flow of the conductive medium around the second seal away from the space between the first and second seals when conductive medium is introduced into that space, yet substantially limit backflow of blood around the second seal into that space.
Claim 3
Dependent Claim
18 words
The medical device of claim 1 wherein the ablating member is located between said first and second seals.
Claim 4
Dependent Claim
14 words
The medical device of claim 1 wherein the first seal is an inflatable balloon.
Claim 5
Dependent Claim
14 words
The medical device of claim 1 wherein the second seal is an inflatable balloon.
Claim 6
Dependent Claim
14 words
The medical device of claim 1 wherein the ablating member is a radiofrequency electrode.
Claim 7
Dependent Claim
44 words
The medical device of claim 1 wherein said introduction member comprises a lumen passing through said catheter into an opening in the catheter between the first and second seals for introduction of a conductive media into the vessel between the first and second seals.
Claim 8
Dependent Claim
14 words
The medical device of claim 1 wherein the second seal is a flexible disc.
Claim 9
Dependent Claim
18 words
The medical device of claim 1 wherein a sensor for sensing cardiac activity is secured to the catheter.
Claim 10
Dependent Claim
16 words
The medical device of claim 8 wherein the sensor is located distal from the first seal.
Claim 11
Dependent Claim
167 words
A medical device system for ablation within a vessel of a human, comprising: a. an introducer with a proximal and a distal end and a lumen passing through the introducer from the proximal to the distal end, b. a catheter inserted within the lumen of the introducer, c. a first seal secured to the catheter, adapted to seal the vessel and substantially prevent flow of blood around the first seal through the vessel, d. a second seal secured to the introducer, e. an introduction member to introduce a conductive medium into a space in the vessel located between the first and second seals, and f. an ablating member for ablating tissue within the vessel, whereby during the ablation procedure, the second seal is structured to encourage a flow of the conductive medium around the second seal away from the space between the first and second seals when conductive medium is introduced into that space, yet substantially limit backflow of blood around the second seal into that space.
Claim 12
Dependent Claim
167 words
A medical device system for ablation within a vessel of a human, comprising: a. an introducer with a proximal and a distal end and a lumen passing through the introducer from the proximal to the distal end, b. a catheter inserted within the lumen of the introducer, c. a first seal secured to the catheter, adapted to seal the vessel and substantially prevent flow of blood around the first seal through the vessel, d. a second seal secured to the introducer, e. an introduction member to introduce a conductive medium into a space in the vessel located between the first and second seals, and f. an ablating member for ablating tissue within the vessel, whereby during the ablation procedure, the second seal is structured to encourage a flow of the conductive medium around the second seal away from the space between the first and second seals when conductive medium is introduced into that space, yet substantially limit backflow of blood around the second seal into that space.
Claim 13
Dependent Claim
22 words
The medical system of claim 10 wherein the ablating member is secured to the catheter and located distal to the second seal.
Claim 14
Dependent Claim
14 words
The medical system of claim 10 wherein the first seal is an inflatable balloon.
Claim 15
Dependent Claim
14 words
The medical system of claim 10 wherein the second seal is an inflatable balloon.
Claim 16
Dependent Claim
21 words
The medical system of claim 10 wherein the ablating member is secured to the catheter and is a radiofrequency energy electrode.
Claim 17
Dependent Claim
33 words
The medical system of claim 10 wherein the introduction member to introduce conductive media comprises a lumen passing through the catheter into an opening in the catheter between the first and second seals.
Claim 18
Dependent Claim
14 words
The medical system of claim 10 wherein the second seal is a flexible disc.
Claim 19
Dependent Claim
139 words
A process for the ablation of tissue within a vessel of a human comprising a. introducing a catheter containing a seal into the vessel, b. sealing the vessel to prevent substantially a flow of blood through the vessel around the seal, c. introducing a second seal into the vessel at a position proximal from the first seal, d. introducing an ablation member for ablating the tissue associated with the vessel into a space located between the first and second seals, e. substantially replacing blood located in the space between the first and second seals with a conductive medium, f. encouraging a flow of the conductive medium around the second seal away from the space between the first and second seals as conductive media is introduced into that space, and g. ablating the tissue by use of an ablation member.
Claim 20
Dependent Claim
139 words
A process for the ablation of tissue within a vessel of a human comprising a. introducing a catheter containing a seal into the vessel, b. sealing the vessel to prevent substantially a flow of blood through the vessel around the seal, c. introducing a second seal into the vessel at a position proximal from the first seal, d. introducing an ablation member for ablating the tissue associated with the vessel into a space located between the first and second seals, e. substantially replacing blood located in the space between the first and second seals with a conductive medium, f. encouraging a flow of the conductive medium around the second seal away from the space between the first and second seals as conductive media is introduced into that space, and g. ablating the tissue by use of an ablation member.
Claim 21
Dependent Claim
186 words
A process for the circumferential ablation of tissue within a vessel associated with a human comprising a. introducing an introducer into the vessel, wherein the introducer contains a lumen passing from its proximal to its distal end, b. introducing within the lumen of the introducer a catheter, wherein there is secured at or near the distal end of the catheter a first seal and an ablating member and wherein there is secured near the distal end of the introducer a second seal, c. introducing the catheter into the lumen of the introducer such that the first seal and the ablating member extend beyond the distal tip of the introducer, d. substantially preventing flow of blood through the vessel by means of the first seal, e. substantially replacing blood in a space in the vessel located between the first and second seals with a conductive medium, f. encouraging a flow of the conductive medium around the second seal away from the space between the first and second seals as conductive media is introduced into that space, and g. ablating the tissue by use of an ablation member.
Claim 22
Dependent Claim
186 words
A process for the circumferential ablation of tissue within a vessel associated with a human comprising a. introducing an introducer into the vessel, wherein the introducer contains a lumen passing from its proximal to its distal end, b. introducing within the lumen of the introducer a catheter, wherein there is secured at or near the distal end of the catheter a first seal and an ablating member and wherein there is secured near the distal end of the introducer a second seal, c. introducing the catheter into the lumen of the introducer such that the first seal and the ablating member extend beyond the distal tip of the introducer, d. substantially preventing flow of blood through the vessel by means of the first seal, e. substantially replacing blood in a space in the vessel located between the first and second seals with a conductive medium, f. encouraging a flow of the conductive medium around the second seal away from the space between the first and second seals as conductive media is introduced into that space, and g. ablating the tissue by use of an ablation member.
References Cited (Backward Citations)
US4500529A
Cited
US4558155A
Cited
US4445892A
Cited
US4705517A
Cited
US4641649A
Cited
US4911163A
Cited
US5231995A
Cited
US5002532A
Cited
US5286866A
Cited
US4955377A
Cited
US4988698A
Cited
US4945912A
Cited
US5246438A
Cited
US5100388A
Cited
US5215989A
Cited
DE4001086A1
Cited
US5271392A
Cited
US5228442A
Cited
US5433729A
Cited
US5209229A
Cited
US5304214A
Cited
US5242441A
Cited
US5263493A
Cited
US5281217A
Cited
US5468239A
Cited
US5281213A
Cited
US5281218A
Cited
US5293868A
Cited
US5366490A
Cited
US5540679A
Cited
US5282836A
Cited
US5676693A
Cited
US5584872A
Cited
US5256141A
Cited
US5536247A
Cited
US5599307A
Cited
US5462529A
Cited
US5628316A
Cited
US5564440A
Cited
US5575766A
Cited
US5497774A
Cited
US5427119A
Cited
US5472441A
Cited
US5484412A
Cited
US5588961A
Cited
US5797905A
Cited
US5640955A
Cited
US5624439A
Cited
WO1997016127A1
Cited
US5800482A
Cited
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 |