US5462545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter electrodes
Assignee: Tufts Medical Center Inc
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Filing: 1994-01-31
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Granted: 1995-10-31
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Expires: 2014-01-31
Abstract
Abstract In one aspect of the invention, an electrode portion of a catheter disposed at a distal portion of the catheter includes two or more electrically conductive panels which: are disposed a substantially fixed radial distance from a directly-underlying axis extending lengthwise through the center of the catheter; are longitudinal strips disposed parallel to the axis, substantially equally around the circumference of the distal portion of the catheter, and substantially isodiametric with the remainder of the catheter; are electrically isolated from each other; are selectively energizable by energy transmitted from a source through the channels to the panels; and can transmit received signals through the channels to means for recording the signals. In another aspect of the invention, a catheter includes an electrically conductive electrode portion which is: disposed at a distal portion of the catheter; energizable; capable of receiving signals; and bent or bendable into a substantially coil configuration.
Inventors
- 👤 Paul J. Wang
- 👤 Peter W. Groeneveld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:43
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B18/1402; A61B2018/00053; A61B2018/00107; A61B2018/00148; A61B2018/1467; A61B2018/1497
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
132 words
A catheter electrode, comprising: at least three electrically conductive panels which are: disposed at a distal portion of a catheter and in a substantially coil configuration; disposed a substantially fixed radial distance from a directly-underlying axis extending lengthwise through the center of the catheter; disposed substantially equally around the circumference of the distal portion of the catheter, and substantially isodiametric with the reminder of the catheter; electrically isolated from each other; and each coupled to a first end of a different energy transmitting channel which has a second end couplable to an energy source and a recorder such that the panels; are selectively energizable individually and in any combination by energy transmitted from the source through the channels to the panels, and can transmit received signals through the channels to the recorder.
Claim 2
Dependent Claim
132 words
A catheter electrode, comprising: at least three electrically conductive panels which are: disposed at a distal portion of a catheter and in a substantially coil configuration; disposed a substantially fixed radial distance from a directly-underlying axis extending lengthwise through the center of the catheter; disposed substantially equally around the circumference of the distal portion of the catheter, and substantially isodiametric with the reminder of the catheter; electrically isolated from each other; and each coupled to a first end of a different energy transmitting channel which has a second end couplable to an energy source and a recorder such that the panels; are selectively energizable individually and in any combination by energy transmitted from the source through the channels to the panels, and can transmit received signals through the channels to the recorder.
Claim 3
Dependent Claim
32 words
The catheter electrode of claim 1 wherein the panels comprise longitudinal strips disposed along the length of the axis and substantially equally around the circumference of the distal portion of the catheter.
Claim 4
Independent Claim
172 words
A method for increasing lesion size, comprising: (A) providing an electrode comprising at least three electrically conductive panels which are: disposed at a distal portion of a catheter and in a substantially coil configuration; disposed a substantially fixed radial distance from a directly-underlying axis extending lengthwise through the center of the catheter; disposed substantially equally around the circumference of the distal portion of the catheter, and substantially isodiametric with the remainder of the catheter; electrically isolated from each other; and each coupled to a first end of a different energy transmitting channel which has a second end couplable to an energy source and a recorder such that the panels: are selectively energizable individually and in any combination by energy transmitted from the source through the channels to the panels, and can transmit received signals through the channels to the recorder; (B) placing one or more of the panels in contact with tissue to be ablated; and (C) selectively energizing the panels substantially contacting the tissue to create a lesion in the tissue.
Claim 5
Independent Claim
172 words
A method for increasing lesion size, comprising: (A) providing an electrode comprising at least three electrically conductive panels which are: disposed at a distal portion of a catheter and in a substantially coil configuration; disposed a substantially fixed radial distance from a directly-underlying axis extending lengthwise through the center of the catheter; disposed substantially equally around the circumference of the distal portion of the catheter, and substantially isodiametric with the remainder of the catheter; electrically isolated from each other; and each coupled to a first end of a different energy transmitting channel which has a second end couplable to an energy source and a recorder such that the panels: are selectively energizable individually and in any combination by energy transmitted from the source through the channels to the panels, and can transmit received signals through the channels to the recorder; (B) placing one or more of the panels in contact with tissue to be ablated; and (C) selectively energizing the panels substantially contacting the tissue to create a lesion in the tissue.
Claim 6
Dependent Claim
31 words
The method of claim 3 further comprising bending the electrode into a substantially coil configuration such that a larger area of tissue can be contacted by the one or more panels.
Claim 7
Dependent Claim
32 words
The method of claim 3 further comprising receiving, with one or more of the panels, signals generated by an organ; and analyzing the received signals to determine the tissue to be ablated.
Claim 8
Dependent Claim
31 words
The method of claim 3 wherein the panels comprise longitudinal strips disposed along the length of the axis and substantially equally around the circumference of the distal portion of the catheter.
Claim 9
Dependent Claim
132 words
A catheter electrode, comprising: at least three electrically conductive panels which are: disposed at a distal portion of a catheter; bendable into a substantially coil configuration; disposed a substantially fixed radial distance from a directly-underlying axis extending lengthwise through the center of the catheter; disposed substantially equally around the circumference of the distal portion of the catheter, and substantially isodiametric with the remainder of the catheter; electrically isolated from each other; and each coupled to a first end of a different energy transmitting channel which has a second end couplable to an energy source and a recorder such that the panels: are selectively energizable individually and in any combination by energy transmitted from the source through the channels to the panels, and can transmit received signals through the channels to the recorder.
Claim 10
Dependent Claim
132 words
A catheter electrode, comprising: at least three electrically conductive panels which are: disposed at a distal portion of a catheter; bendable into a substantially coil configuration; disposed a substantially fixed radial distance from a directly-underlying axis extending lengthwise through the center of the catheter; disposed substantially equally around the circumference of the distal portion of the catheter, and substantially isodiametric with the remainder of the catheter; electrically isolated from each other; and each coupled to a first end of a different energy transmitting channel which has a second end couplable to an energy source and a recorder such that the panels: are selectively energizable individually and in any combination by energy transmitted from the source through the channels to the panels, and can transmit received signals through the channels to the recorder.
Claim 11
Dependent Claim
25 words
The catheter electrode of claim 7 wherein the catheter further comprises means for bending the panels and the distal portion into the substantially coil configuration.
Claim 12
Dependent Claim
32 words
The catheter electrode of claim 7 wherein the panels comprise longitudinal strips disposed along the length of the axis and substantially equally around the circumference of the distal portion of the catheter.
Claim 13
Independent Claim
181 words
A method for creating lesions, comprising: (A) providing an electrode comprising at least three electrically conductive panels which are: disposed at a distal portion of a catheter; disposed a substantially fixed radial distance from a directly-underlying axis extending lengthwise through the center of the catheter; disposed substantially equally around the circumference of the distal portion of the catheter, and substantially isodiametric with the remainder of the catheter; electrically isolated from each other; and each coupled to a first end of a different energy transmitting channel which has a second end couplable to an energy source and a recorder such that the panels: are selectively energizable individually and in any combination by energy transmitted from the source through the channels to the panels, and can transmit received signals through the channels to the recorder; (B) bending the panels at the distal portion of the catheter into a substantially coil configuration; (C) placing one or more of the panels in contact with tissue to be ablated; and (D) selectively energizing the panels substantially contacting the tissue to create a lesion in the tissue.
Claim 14
Independent Claim
181 words
A method for creating lesions, comprising: (A) providing an electrode comprising at least three electrically conductive panels which are: disposed at a distal portion of a catheter; disposed a substantially fixed radial distance from a directly-underlying axis extending lengthwise through the center of the catheter; disposed substantially equally around the circumference of the distal portion of the catheter, and substantially isodiametric with the remainder of the catheter; electrically isolated from each other; and each coupled to a first end of a different energy transmitting channel which has a second end couplable to an energy source and a recorder such that the panels: are selectively energizable individually and in any combination by energy transmitted from the source through the channels to the panels, and can transmit received signals through the channels to the recorder; (B) bending the panels at the distal portion of the catheter into a substantially coil configuration; (C) placing one or more of the panels in contact with tissue to be ablated; and (D) selectively energizing the panels substantially contacting the tissue to create a lesion in the tissue.
Claim 15
Dependent Claim
32 words
The method of claim 10 further comprising: receiving, with one or more of the panels, signals generated by an organ; and analyzing the received signals to determine the tissue to be ablated.
Claim 16
Dependent Claim
31 words
The method of claim 10 wherein the panels comprise longitudinal strips disposed along the length of the axis and substantially equally around the circumference of the distal portion of the catheter.
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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) | 1998-10-30 | 1999-05-01 | 1999-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-30 | 2003-05-01 | 2003-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-30 | 2007-05-01 | 2007-10-31 | $7700.00 | Window Closed / Lapsed |