Patent US2054612A successfully refreshed from Google Patents.
US6076012A
Expired / Lapsed
US
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Structures for supporting porous electrode elements
Assignee: EP Technologies Inc
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Filing: 1996-12-19
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Granted: 2000-06-13
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Expires: 2016-12-19
Abstract
Abstract A catheter assembly comprising a elongated, flexible support structure having an axis. The assembly also includes an elongated porous electrode assembly carried by the support structure along the axis for contact with tissue. The elongated porous electrode assembly comprises a wall having an exterior peripherally surrounding an interior area, a lumen to convey a medium containing ions into the interior area, and an element coupling the medium within the interior area to a source of electrical energy. At least a portion of the wall comprising a porous material is sized to allow passage of ions contained in the medium to thereby enable ionic transport of electrical energy through the porous material to the exterior of the wall to form a continuous elongated lesion pattern in tissue contacted by the wall. The support structure can have a curvilinear geometry, e.g., a loop shape, and the elongated porous electrode assembly conforms to the curvilinear geometry. The assembly also includes comprises a sheath carried by the support structure having a slot extending along the axis of the support structure, wherein the electrode assembly is adapted to bend outwardly through the slot.
Inventors
- 👤 David K Swanson
- 👤 Russell B Thompson
- 👤 Sidney D Fleischman
- 👤 Dorin Panescu
- 👤 James G Whayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:09
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/06; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B2018/00053; A61B2018/00107; A61B2018/00148; A61B2018/00214
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
A catheter assembly, comprising: an elongated, flexible support structure having an axis and a distal end; an elongated porous electrode assembly carried by the support structure along the axis for contact with tissue, the elongated porous electrode assembly comprising a wall having an exterior peripherally surrounding an interior area, a lumen to convey a medium containing ions into the interior area, and an element disposed on the distal end of the catheter and configured for coupling a source of electrical energy to selected tissue areas contacted by the wall via a medium containing ions delivered through the lumen and present within the interior area, at least a portion of the wall comprising a porous material sized to allow passage of ions to thereby enable ionic transport of electrical energy through the porous material to form a continuous elongated lesion pattern in tissue contacted by the wall; and a sheath carried by the support structure, the sheath comprising a slot extending along the axis of the support structure, wherein the electrode assembly is adapted to bend outwardly through the slot.
Claim 2
Dependent Claim
179 words
A catheter assembly, comprising: an elongated, flexible support structure having an axis and a distal end; an elongated porous electrode assembly carried by the support structure along the axis for contact with tissue, the elongated porous electrode assembly comprising a wall having an exterior peripherally surrounding an interior area, a lumen to convey a medium containing ions into the interior area, and an element disposed on the distal end of the catheter and configured for coupling a source of electrical energy to selected tissue areas contacted by the wall via a medium containing ions delivered through the lumen and present within the interior area, at least a portion of the wall comprising a porous material sized to allow passage of ions to thereby enable ionic transport of electrical energy through the porous material to form a continuous elongated lesion pattern in tissue contacted by the wall; and a sheath carried by the support structure, the sheath comprising a slot extending along the axis of the support structure, wherein the electrode assembly is adapted to bend outwardly through the slot.
Claim 3
Dependent Claim
27 words
A catheter assembly according to claim 1 wherein the elongated porous electrode assembly comprises an array of electrode segments formed by segmenting the wall along the axis.
Claim 4
Dependent Claim
30 words
A catheter assembly according to claim 1, wherein the support structure has a curvilinear geometry, and wherein the elongated porous electrode assembly is adapted to conform to the curvilinear geometry.
Claim 5
Dependent Claim
33 words
A catheter assembly according to claim 1, wherein the support structure is adapted to form a loop geometry, and wherein the elongated porous electrode assembly is adapted to conform to the loop geometry.
Claim 6
Dependent Claim
15 words
A catheter assembly according to claim 1 wherein the porous material comprises a microporous membrane.
Claim 7
Dependent Claim
15 words
A catheter assembly according to claim 1 wherein the porous material comprises an ultrafiltration membrane.
Claim 8
Dependent Claim
22 words
A catheter assembly according to claim 1 wherein the element comprises an electrically conductive electrode in the interior area of the wall.
Claim 9
Dependent Claim
28 words
A catheter assembly according to claim 1 wherein the porous material is sized to pass ions contained in the medium without substantial liquid perfusion through the porous material.
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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) | 2003-06-13 | 2003-12-13 | 2004-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-06-13 | 2007-12-13 | 2008-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-06-13 | 2011-12-13 | 2012-06-13 | $7700.00 | Window Closed / Lapsed |