Patent US5607466A successfully refreshed from Google Patents.
US5607466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter with a stent
Assignee: Boston Scientific Corp
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Filing: 1995-04-28
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Granted: 1997-03-04
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Expires: 2015-04-28
Abstract
Abstract A catheter with a self-expanding stent of a permeable mesh of stiff intersecting fibers is provided. A tubular outer catheter shaft holds the stent under tension at its distal end and from which the stent can be released for placement. A displaceable inner catheter inside the tubular outer catheter shaft supports the stent axially at its proximal end. In order to release the stent, the outer catheter shaft is retracted with respect to the inner catheter. A process for producing this catheter is also described. The stent is secured by gripping it at its proximal end in such a way that it forms a permeable mesh cone that expands automatically together with the stent and has a radius that increases gradually to the radius of the relaxed stent. The stent is securely anchored on the inner catheter with the help of the mesh cone.
Inventors
- 👤 Christian Imbert
- 👤 Eugen Hofmann
- 👤 Marc Gianotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:26
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/82; A61F2/86; A61F2/90; A61F2/962; A61F2/966
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
122 words
A catheter comprising: (a) a tubular outer catheter having a distal end and an elastic safety cap attached to the distal end; (b) an inner catheter having a proximal portion and a distal portion, the inner catheter disposed at least in part within the outer catheter and axially movable relative to the outer catheter; and (c) a permeable mesh self-expanding stent having a proximal portion and a distal portion, the proximal portion of the stent overlapping and attached to the distal portion of the inner catheter in an overlapping portion, the overlapping portion having an outer diameter defined by the diameter of the proximal portion of the stent, wherein said elastic safety cap is adapted to close upon withdrawal of the stent.
Claim 2
Dependent Claim
122 words
A catheter comprising: (a) a tubular outer catheter having a distal end and an elastic safety cap attached to the distal end; (b) an inner catheter having a proximal portion and a distal portion, the inner catheter disposed at least in part within the outer catheter and axially movable relative to the outer catheter; and (c) a permeable mesh self-expanding stent having a proximal portion and a distal portion, the proximal portion of the stent overlapping and attached to the distal portion of the inner catheter in an overlapping portion, the overlapping portion having an outer diameter defined by the diameter of the proximal portion of the stent, wherein said elastic safety cap is adapted to close upon withdrawal of the stent.
Claim 3
Dependent Claim
34 words
The catheter of claim 1 wherein the proximal portion of the stent has an outer diameter and the diameter of the overlapping portion does not exceed the outer diameter of the stent proximal portion.
Claim 4
Dependent Claim
52 words
The catheter of claim 1 wherein the stent forms a mesh cone gradually increasing in diameter between the proximal portion of the stent and the distal portion of the stent, the distal portion of the stent adapted to self-expand upon deployment from the outer catheter to make contact with a vessel wall.
Claim 5
Dependent Claim
21 words
The catheter according to claim 1 wherein the permeable mesh self-expanding stent is connected to the inner catheter by a binder.
Claim 6
Dependent Claim
19 words
The catheter according to claim 4 wherein the stent is connected to the inner catheter only by a binder.
Claim 7
Dependent Claim
25 words
The catheter according to claim 1 wherein said inner catheter is a tube with a distal portion that ends inside the permeable mesh self-expanding stent.
Claim 8
Dependent Claim
21 words
The catheter according to claim 1 wherein the safety cap is adapted to be penetrated by the permeable mesh self-expanding stent.
Claim 9
Dependent Claim
117 words
A catheter comprising: (a) a tubular outer catheter having a proximal portion and a distal portion; (b) an elastic safety cap affixed to the distal portion of the outer catheter; (c) an inner catheter disposed at least in part within the outer catheter; and (d) a permeable mesh self-expanding stent having a proximal end and a distal end, the stent attached to the distal portion of the inner catheter; wherein the inner tube is adapted for axial movement within the outer catheter to carry the stent in a distal direction to penetrate the safety cap thereby allowing further distal movement of the stent, wherein said elastic safety cap is adapted to close upon withdrawal of the stent.
Claim 10
Dependent Claim
117 words
A catheter comprising: (a) a tubular outer catheter having a proximal portion and a distal portion; (b) an elastic safety cap affixed to the distal portion of the outer catheter; (c) an inner catheter disposed at least in part within the outer catheter; and (d) a permeable mesh self-expanding stent having a proximal end and a distal end, the stent attached to the distal portion of the inner catheter; wherein the inner tube is adapted for axial movement within the outer catheter to carry the stent in a distal direction to penetrate the safety cap thereby allowing further distal movement of the stent, wherein said elastic safety cap is adapted to close upon withdrawal of the stent.
Claim 11
Dependent Claim
45 words
The catheter of claim 8 wherein the proximal portion of the stent is attached to the distal portion of the inner catheter to form a mesh cone gradually increasing in diameter between the proximal portion of the stent and the distal portion of the stent.
Claim 12
Dependent Claim
16 words
The catheter of claim 8 wherein the safety cap contains apertures to facilitate the penetration thereof.
Claim 13
Dependent Claim
25 words
The catheter according to claim 8 wherein said inner catheter is a tube with a distal portion that ends inside the permeable mesh self-expanding stent.
Claim 14
Independent Claim
207 words
A method for deploying a stent with a catheter comprising a tubular outer catheter having a proximal portion and a distal portion; an elastic safety cap affixed to the distal portion of the outer catheter; an inner catheter disposed at least in part within the outer catheter; and a permeable mesh self-expanding stent having a proximal end and a distal end, the stent attached to the distal portion of the inner catheter; wherein the inner tube is adapted for axial movement within the outer catheter to carry the stent in a distal direction to penetrate the safety cap thereby allowing further distal movement of the stent; the method comprising: a) advancing the catheter to a treatment site within a body vessel; b) moving the tubular outer catheter proximally relative to the inner catheter so that the distal end of the stent penetrates the safety cap to deploy at least part of the stent outside of the outer tube; c) allowing at least the distal portion of the stent to self-expand and make contact with a body vessel; and then d) moving the outer tubular catheter distally relative to the inner catheter to withdraw the stent into the outer tube and allowing the elastic safety cap to close.
Claim 15
Independent Claim
207 words
A method for deploying a stent with a catheter comprising a tubular outer catheter having a proximal portion and a distal portion; an elastic safety cap affixed to the distal portion of the outer catheter; an inner catheter disposed at least in part within the outer catheter; and a permeable mesh self-expanding stent having a proximal end and a distal end, the stent attached to the distal portion of the inner catheter; wherein the inner tube is adapted for axial movement within the outer catheter to carry the stent in a distal direction to penetrate the safety cap thereby allowing further distal movement of the stent; the method comprising: a) advancing the catheter to a treatment site within a body vessel; b) moving the tubular outer catheter proximally relative to the inner catheter so that the distal end of the stent penetrates the safety cap to deploy at least part of the stent outside of the outer tube; c) allowing at least the distal portion of the stent to self-expand and make contact with a body vessel; and then d) moving the outer tubular catheter distally relative to the inner catheter to withdraw the stent into the outer tube and allowing the elastic safety cap to close.
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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) | 2000-03-03 | 2000-09-02 | 2001-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-03 | 2004-09-02 | 2005-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-03 | 2008-09-02 | 2009-03-04 | $7700.00 | Window Closed / Lapsed |