US6091980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent slip sensing system and method
Assignee: Massachusetts Institute of Technology
•
Filing: 1999-01-05
•
Granted: 2000-07-18
•
Expires: 2019-01-05
Abstract
Abstract An endoluminal device slippage sensor system including an electrically conductive endoluminal device and a catheter assembly to which the device is coupled for deployment into a lumen. First, second and third electrodes are associated with the catheter assembly, each respectively in direct electrical contact with a proximal, a middle and a distal portion of the device. A potential source generates a potential between the first and second electrodes and between the second and third electrodes. The potential between the electrodes is varied in accordance with a change of position of the device along the axis of the catheter assembly during deployment in which the proximal or distal portion of the device is disconnected from the first or third electrode, respectively. In accordance with another embodiment of the invention there is provided an endoluminal device slippage sensor system including an electrically conductive endoluminal device and a catheter assembly to which the device is coupled for deployment into a lumen. At least two electrodes are mounted longitudinally along the length of the catheter assembly, each of the electrodes being in direct electrical contact with the device. A potential source generates a potential between the electrodes, the potential between the electrodes being varied in accordance with a change of position of the device along the axis of the catheter assembly.
Inventors
- 👤 James C. Squire
- 👤 Campbell Rogers
- 👤 Elazer R. Edelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:59
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/958
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
120 words
An endoluminal device slippage sensor system comprising: an electrically conductive endoluminal device; a catheter assembly to which said device is coupled for deployment into a lumen; first, second and third electrodes associated with said catheter assembly, each respectively in direct electrical contact with a proximal, a middle and a distal portion of said device; and a potential source which generates a potential between said first and second electrodes and between said second and third electrodes, said potential between said electrodes being varied in accordance with a change of position of said device along the axis of said catheter assembly during deployment in which said proximal or distal portion of said device is disconnected from said first or third electrode, respectively.
Claim 2
Dependent Claim
120 words
An endoluminal device slippage sensor system comprising: an electrically conductive endoluminal device; a catheter assembly to which said device is coupled for deployment into a lumen; first, second and third electrodes associated with said catheter assembly, each respectively in direct electrical contact with a proximal, a middle and a distal portion of said device; and a potential source which generates a potential between said first and second electrodes and between said second and third electrodes, said potential between said electrodes being varied in accordance with a change of position of said device along the axis of said catheter assembly during deployment in which said proximal or distal portion of said device is disconnected from said first or third electrode, respectively.
Claim 3
Dependent Claim
13 words
The system of claim 1, wherein said endoluminal device comprises an endovascular stent.
Claim 4
Dependent Claim
13 words
The system of claim 1, wherein said catheter assembly comprises a balloon catheter.
Claim 5
Dependent Claim
20 words
The system of claim 1 further comprising at least one potential sensor which monitors the potential variations between said electrodes.
Claim 6
Dependent Claim
13 words
The system of claim 1, wherein said potential source comprises a voltage source.
Claim 7
Dependent Claim
86 words
An endoluminal device slippage sensor system comprising: an electrically conductive endoluminal device; a catheter assembly to which said device is coupled for deployment into a lumen; at least two electrodes mounted longitudinally along the length of said catheter assembly, each of said electrodes being in direct electrical contact with said device; and a potential source which generates a potential between said electrodes, said potential between said electrodes being varied in accordance with a change of position of said device along the axis of said catheter assembly.
Claim 8
Dependent Claim
86 words
An endoluminal device slippage sensor system comprising: an electrically conductive endoluminal device; a catheter assembly to which said device is coupled for deployment into a lumen; at least two electrodes mounted longitudinally along the length of said catheter assembly, each of said electrodes being in direct electrical contact with said device; and a potential source which generates a potential between said electrodes, said potential between said electrodes being varied in accordance with a change of position of said device along the axis of said catheter assembly.
Claim 9
Dependent Claim
13 words
The system of claim 6, wherein said endoluminal device comprises an endovascular stent.
Claim 10
Dependent Claim
13 words
The system of claim 1, wherein said catheter assembly comprises a balloon catheter.
Claim 11
Dependent Claim
20 words
The system of claim 1 further comprising at least one potential sensor which monitors the potential variations between said electrodes.
Claim 12
Dependent Claim
13 words
The system of claim 1, wherein said potential source comprises a voltage source.
Claim 13
Dependent Claim
30 words
The system of claim 1 further comprising at least a third electrode mounted longitudinally along the length of said catheter assembly and being in direct electrical contact with said device.
Claim 14
Dependent Claim
14 words
The system of claim 11, wherein said at least two electrodes comprise resistive electrodes.
Claim 15
Dependent Claim
16 words
The system of claim 12, wherein said at least a third electrode comprises a conductive electrode.
Claim 16
Independent Claim
80 words
A method of sensing slippage of an electrically conductive endoluminal device which is coupled to a catheter assembly for deployment into a lumen, comprising: providing at least two electrodes longitudinally along the length of said catheter assembly, each of said electrodes being in direct electrical contact with said device; and generating a potential between said electrodes, said potential between said electrodes being varied in accordance with a change of position of said device along the axis of said catheter assembly.
Claim 17
Independent Claim
80 words
A method of sensing slippage of an electrically conductive endoluminal device which is coupled to a catheter assembly for deployment into a lumen, comprising: providing at least two electrodes longitudinally along the length of said catheter assembly, each of said electrodes being in direct electrical contact with said device; and generating a potential between said electrodes, said potential between said electrodes being varied in accordance with a change of position of said device along the axis of said catheter assembly.
Claim 18
Independent Claim
80 words
A method of sensing slippage of an electrically conductive endoluminal device which is coupled to a catheter assembly for deployment into a lumen, comprising: providing at least two electrodes longitudinally along the length of said catheter assembly, each of said electrodes being in direct electrical contact with said device; and generating a potential between said electrodes, said potential between said electrodes being varied in accordance with a change of position of said device along the axis of said catheter assembly.
Claim 19
Independent Claim
80 words
A method of sensing slippage of an electrically conductive endoluminal device which is coupled to a catheter assembly for deployment into a lumen, comprising: providing at least two electrodes longitudinally along the length of said catheter assembly, each of said electrodes being in direct electrical contact with said device; and generating a potential between said electrodes, said potential between said electrodes being varied in accordance with a change of position of said device along the axis of said catheter assembly.
References Cited (Backward Citations)
US4944740A
Cited
US4665918A
Cited
US5266073A
Cited
US5108416A
Cited
US5158548A
Cited
US5242399A
Cited
US5913820A
Cited
US5409019A
Cited
US5651047A
Cited
US5470350A
Cited
US5433216A
Cited
US5902238A
Cited
US5921924A
Cited
US5607442A
Cited
US5697377A
Cited
US5983126A
Cited
US5944023A
Cited
US5665103A
Cited
US5928248A
Cited
US5879297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-07-18 | 2004-01-17 | 2004-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-18 | 2008-01-17 | 2008-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-18 | 2012-01-17 | 2012-07-18 | $7700.00 | Window Closed / Lapsed |