US6511458B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vascular re-entry catheter
Assignee: Cordis US Corp
•
Filing: 2001-01-19
•
Granted: 2003-01-28
•
Expires: 2021-01-19
Abstract
Abstract Total occlusions are crossed by passing a guidewire or other penetrating wire from a point proximal to the occlusion into a subintimal space between the intimal layer and adventitial layer of the blood vessel wall. The wire is advanced to a point distal to the occlusion and thereafter deflected back into the blood vessel lumen, typically using a deflecting catheter which is advanced over the guidewire after it has been positioned within the subintimal space. After the guidewire is returned to the blood vessel lumen, the deflecting catheter may be withdrawn and the guidewire is available for introduction of other interventional and diagnostic catheters.
Inventors
- 👤 Charles F. Milo
- 👤 Matthew R. Selmon
- 👤 Richard E. Hill
- 👤 Fred H. Co
- 👤 Ronald G. French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:17
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61M; A61M25/00; A61M25/01; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00252; A61B2017/00292; A61B2017/003; A61B17/22; A61B2017/22038; A61B2017/22042; A61B2017/22044; A61B2017/22072; A61B2017/22074; A61B2017/22077; A61B2017/22094; A61B2017/22095; A61B18/00; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392; A61B90/00; A61B90/39; A61B2090/3925; A61M25/0067; A61M25/0082; A61M2025/0096
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
78 words
A method for forming a pathway between an extraluminal space within a blood vessel and a lumen of the blood vessel, comprising: advancing a wire into the extraluminal space of a wall of the blood vessel; advancing a catheter system over the wire into the extraluminal space; retracting the wire into the catheter system; and advancing the wire through a lateral port in the catheter system, wherein the pathway is formed from the extraluminal space into the lumen.
Claim 2
Independent Claim
78 words
A method for forming a pathway between an extraluminal space within a blood vessel and a lumen of the blood vessel, comprising: advancing a wire into the extraluminal space of a wall of the blood vessel; advancing a catheter system over the wire into the extraluminal space; retracting the wire into the catheter system; and advancing the wire through a lateral port in the catheter system, wherein the pathway is formed from the extraluminal space into the lumen.
Claim 3
Dependent Claim
10 words
The method of claim 1 , wherein advancing comprises deflecting.
Claim 4
Independent Claim
75 words
A method for forming a pathway between an extraluminal space within a blood vessel and a lumen of the blood vessel, comprising: advancing a wire into the extraluminal space of a wall of the blood vessel; advancing a catheter system into the extraluminal space; positioning the wire in the catheter system; and advancing the wire through a lateral port in the catheter system, wherein the pathway is formed from the extraluminal space into the lumen.
Claim 5
Independent Claim
75 words
A method for forming a pathway between an extraluminal space within a blood vessel and a lumen of the blood vessel, comprising: advancing a wire into the extraluminal space of a wall of the blood vessel; advancing a catheter system into the extraluminal space; positioning the wire in the catheter system; and advancing the wire through a lateral port in the catheter system, wherein the pathway is formed from the extraluminal space into the lumen.
Claim 6
Independent Claim
80 words
A method for forming a pathway between an extraluminal space within a blood vessel and a lumen of the blood vessel, comprising: advancing a catheter system into the extraluminal space of a wall of the blood vessel; positioning a wire in the catheter system; positioning a port of the catheter system towards the lumen using a visualization subsystem of the catheter system; and advancing the wire through the port to form the pathway from the extraluminal space into the lumen.
Claim 7
Independent Claim
80 words
A method for forming a pathway between an extraluminal space within a blood vessel and a lumen of the blood vessel, comprising: advancing a catheter system into the extraluminal space of a wall of the blood vessel; positioning a wire in the catheter system; positioning a port of the catheter system towards the lumen using a visualization subsystem of the catheter system; and advancing the wire through the port to form the pathway from the extraluminal space into the lumen.
Claim 8
Dependent Claim
36 words
The method of claim 4 , wherein the visualization subsystem includes at least one system selected from among ultrasound system, an intravascular ultrasonic imaging system (IVUS), an optical coherence tomography (OCT) system, and a fluoroscopic system.
Claim 9
Dependent Claim
13 words
The method of claim 4 , wherein the wire includes the visualization subsystem.
Claim 10
Independent Claim
82 words
A method for forming a pathway between an extraluminal space within a blood vessel and a lumen of the blood vessel, comprising: advancing a catheter system into the extraluminal space of a wall of the blood vessel; positioning a working element in the catheter system; positioning a port of the catheter system towards the lumen using a visualization subsystem of the catheter system; and advancing the working element through the port to form the pathway from the extraluminal space into the lumen.
Claim 11
Independent Claim
82 words
A method for forming a pathway between an extraluminal space within a blood vessel and a lumen of the blood vessel, comprising: advancing a catheter system into the extraluminal space of a wall of the blood vessel; positioning a working element in the catheter system; positioning a port of the catheter system towards the lumen using a visualization subsystem of the catheter system; and advancing the working element through the port to form the pathway from the extraluminal space into the lumen.
Claim 12
Dependent Claim
34 words
The method of claim 7 , further comprising advancing a guide wire into the extraluminal space, wherein advancing the catheter system includes tracking the catheter system over the guide wire to a target location.
Claim 13
Dependent Claim
13 words
The method of claim 7 , wherein the working element is a cannula.
Claim 14
Dependent Claim
18 words
The method of claim 7 , wherein the working element is a cannula having a pre-shaped distal tip.
Claim 15
Dependent Claim
19 words
The method of claim 7 , wherein die working element is a needle cannula having a pre-shaped distal tip.
Claim 16
Independent Claim
83 words
A method for forming a pathway between an extraluminal space within a blood vessel and a lumen of the blood vessel, comprising: advancing a catheter system into the extraluminal space of a wall of the blood vessel; positioning a wire in the catheter system, wherein the wire includes a visualization subsystem; positioning a port of the catheter system towards the lumen using a visualization subsystem; and advancing the wire through the port to form the pathway from the extraluminal space into the lumen.
Claim 17
Independent Claim
83 words
A method for forming a pathway between an extraluminal space within a blood vessel and a lumen of the blood vessel, comprising: advancing a catheter system into the extraluminal space of a wall of the blood vessel; positioning a wire in the catheter system, wherein the wire includes a visualization subsystem; positioning a port of the catheter system towards the lumen using a visualization subsystem; and advancing the wire through the port to form the pathway from the extraluminal space into the lumen.
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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) | 2006-01-27 | 2006-07-29 | 2007-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-01-27 | 2010-07-29 | 2011-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-01-27 | 2014-07-29 | 2015-01-28 | $7700.00 | Window Closed / Lapsed |