US6494906B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent fold clip
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 2000-07-25
•
Granted: 2002-12-17
•
Expires: 2020-07-25
Abstract
Abstract An apparatus for secure stent delivery where the stent is delivered by a catheter system including a foldable delivery balloon. The apparatus, embodied in a stent with tethering clips, enables the stent and delivery balloon to be mechanically interlocked during delivery of the stent. The tethering clips are coupled to a strut included in the stent and the clips are positionable in a releasable gripping relationship with a fold in the balloon. When the balloon is inflated, the tethering clips are pushed outward and the stent and balloon are no longer interlocked, allowing the stent to be expandable radially by the inflating balloon.
Inventors
- 👤 Timothy R. Owens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/95; A61F2/958; A61F2002/91533; A61F2002/91541; A61F2002/9155; A61F2002/91558; A61F2002/9583; A61F2220/00; A61F2220/0025; A61F2220/0058; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013
Claims Analysis
Total Claims: 51
Claim 1
Independent Claim
103 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; and a tethering clip attached to a strut and positionable in a releasable gripping relationship within a fold created when the balloon portion of the delivery catheter is folded in a collapsed position, the clip being adapted to releasably grip the balloon portion to hold the stent on the balloon portion.
Claim 2
Dependent Claim
103 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; and a tethering clip attached to a strut and positionable in a releasable gripping relationship within a fold created when the balloon portion of the delivery catheter is folded in a collapsed position, the clip being adapted to releasably grip the balloon portion to hold the stent on the balloon portion.
Claim 3
Dependent Claim
28 words
The stent of claim 1 , wherein: the clip is elongated, connected at one end to a strut and having at its free end an enlarged transverse cross-section.
Claim 4
Dependent Claim
39 words
The stent of claim 1 , wherein: the clip includes one end connected to a strut and a free end forming a stop so as to create a frictional resistance from withdrawal of the stent from the balloon portion.
Claim 5
Dependent Claim
18 words
The stent of claim 3 , wherein: the free end is formed with knurls for increasing frictional resistance.
Claim 6
Dependent Claim
18 words
The stent of claim 3 , wherein: the free end is formed with corrugations for increasing frictional resistance.
Claim 7
Dependent Claim
16 words
The stent of claim 3 , wherein: the free end is formed with an enlarged cross-section.
Claim 8
Dependent Claim
15 words
The stent of claim 1 , wherein: the clip is pivotally mounted on the strut.
Claim 9
Dependent Claim
15 words
The stent of claim 1 , wherein: the clip is formed from a ductile material.
Claim 10
Dependent Claim
15 words
The stent of claim 1 , wherein: the clip is movably mounted to the strut.
Claim 11
Dependent Claim
16 words
The stent of claim 1 , further including: a plurality of clips connected to the struts.
Claim 12
Dependent Claim
21 words
The stent of claim 10 , wherein: the plurality of clips align substantially adjacent to each other in a longitudinal row.
Claim 13
Dependent Claim
22 words
The stent of claim 1 , wherein: a row of clips are attached to the struts in a substantially straight line arrangement.
Claim 14
Dependent Claim
41 words
The stent of claim 12 , further including a second row of adjacent tethering clips which are attached to the struts and are positionable in a releaseable gripping relationship with a fold formed on the balloon portion of the delivery catheter.
Claim 15
Dependent Claim
20 words
The stent of claim 1 , wherein: the tethering clip is formed from the same material which forms the struts.
Claim 16
Dependent Claim
25 words
The stent of claim 1 , wherein: the tethering clip is made from material which is different from the material which makes up the struts.
Claim 17
Dependent Claim
31 words
The stent of claim 15 , wherein: the material which is used to make the tethering clip has a higher radiopacity that the material which is used to make the struts.
Claim 18
Dependent Claim
63 words
The stent of claim 1 , wherein: the struts are arranged along a longitudinal stent axis to form a generally tubular, regularly expandable body; and the tethering clip extends from a strut at an angle which is perpendicular to the longitudinal stent axis and is positionable in a releaseable gripping relationship with the fold formed on the balloon portion of the delivery catheter.
Claim 19
Dependent Claim
105 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; and a plurality of tethering clips attached to the struts and positionable in a releasable gripping relationship within a fold created on the balloon portion of the delivery catheter when the balloon portion is folded in a collapsed position to releasably grip the balloon fold to hold the stent on the balloon portion.
Claim 20
Dependent Claim
105 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; and a plurality of tethering clips attached to the struts and positionable in a releasable gripping relationship within a fold created on the balloon portion of the delivery catheter when the balloon portion is folded in a collapsed position to releasably grip the balloon fold to hold the stent on the balloon portion.
Claim 21
Dependent Claim
22 words
The stent of claim 18 , wherein: a plurality tethering clips are arranged along the struts in a substantially straight line arrangement.
Claim 22
Dependent Claim
31 words
The stent of claim 18 , wherein: the plurality of tethering clips are arranged in a pair of rows which are arranged along the struts in a substantially straight line arrangement.
Claim 23
Dependent Claim
15 words
The stent of claim 18 , wherein: the clips are pivotally mounted on the struts.
Claim 24
Dependent Claim
15 words
The stent of claim 18 , wherein: the clips are formed from a ductile material.
Claim 25
Dependent Claim
20 words
The stent of claim 18 , wherein: the tethering clips are formed from the same material which forms the struts.
Claim 26
Dependent Claim
25 words
The stent of claim 18 , wherein: the tethering clips are made from material which is different from the material which makes up the struts.
Claim 27
Dependent Claim
30 words
The stent of claim 24 , wherein; the material used to make up the tethering clips has a higher radiopacity than the material which is used to make the struts.
Claim 28
Dependent Claim
17 words
The stent of claim 18 , wherein: the clips are formed with knurls for increasing frictional resistance.
Claim 29
Dependent Claim
17 words
The stent of claim 18 , wherein: the clips are formed with corrugations for increasing frictional resistance.
Claim 30
Dependent Claim
15 words
The stent of claim 18 , wherein: the clips are formed with an enlarged cross-section.
Claim 31
Independent Claim
62 words
A method of securing an intra-luminal stent onto a stent delivery catheter having an inflatable balloon portion, including: selecting a stent having a tethering clip projecting therefrom; folding an inflatable balloon on a stent delivery catheter to form at least one fold therein; and positioning the clip in the balloon fold to releasably hold the stent in position on the folded balloon.
Claim 32
Independent Claim
62 words
A method of securing an intra-luminal stent onto a stent delivery catheter having an inflatable balloon portion, including: selecting a stent having a tethering clip projecting therefrom; folding an inflatable balloon on a stent delivery catheter to form at least one fold therein; and positioning the clip in the balloon fold to releasably hold the stent in position on the folded balloon.
Claim 33
Dependent Claim
28 words
The method of claim 29 , further including: inserting the delivery catheter in a patient's lumen and inflating the balloon to release the clip from the balloon fold.
Claim 34
Dependent Claim
15 words
The method of claim 29 , further including: frictionally holding the clip within the fold.
Claim 35
Dependent Claim
15 words
The method of claim 29 , further including: inflating the balloon to unfold the balloon.
Claim 36
Dependent Claim
20 words
The method of claim 29 , further including: introducing the stent as mounted on the balloon into a vessel lumen.
Claim 37
Dependent Claim
24 words
The method of claim 33 , further including: inflating the balloon to release the clip from the balloon fold and to expand the stent.
Claim 38
Dependent Claim
31 words
The method of claim 29 , wherein: the step of selecting the stent includes selecting a stent with a clip connected on one of the struts which form the composite stent.
Claim 39
Dependent Claim
128 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; and a tethering clip attached to a strut and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the stent on the balloon portion, the clip having one end connected to a strut and a free end forming a stop to create a frictional resistance from withdrawal of the stent from the balloon portion.
Claim 40
Dependent Claim
128 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; and a tethering clip attached to a strut and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the stent on the balloon portion, the clip having one end connected to a strut and a free end forming a stop to create a frictional resistance from withdrawal of the stent from the balloon portion.
Claim 41
Dependent Claim
17 words
The stent of claim 36 , wherein: the clip is formed with knurls for increasing frictional resistance.
Claim 42
Dependent Claim
17 words
The stent of claim 36 , wherein: the clip is formed with corrugations for increasing frictional resistance.
Claim 43
Dependent Claim
15 words
The stent of claim 36 , wherein: the clip is formed with an enlarged cross-section.
Claim 44
Dependent Claim
136 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; a row of tethering clips attached to the struts in a substantially straight line arrangement and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the stent on the balloon portion; and a second row of adjacent tethering clips attached to the struts and positionable in a releaseable gripping relationship with a fold formed on the balloon portion of the delivery catheter.
Claim 45
Dependent Claim
136 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; a row of tethering clips attached to the struts in a substantially straight line arrangement and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the stent on the balloon portion; and a second row of adjacent tethering clips attached to the struts and positionable in a releaseable gripping relationship with a fold formed on the balloon portion of the delivery catheter.
Claim 46
Dependent Claim
115 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; and a tethering clip attached to a strut and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the struts on the balloon portion, the tethering clip being made from material which is different from the material making up the struts.
Claim 47
Dependent Claim
115 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; and a tethering clip attached to a strut and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the struts on the balloon portion, the tethering clip being made from material which is different from the material making up the struts.
Claim 48
Dependent Claim
26 words
The stent of claim 41 , wherein: the material used to make the tethering clip has a higher radiopacity that the material making up the struts.
Claim 49
Dependent Claim
117 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; and a plurality of tethering clips attached to the struts and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the struts on the balloon portion, the tethering clips being made from material which is different from the material making up the struts.
Claim 50
Dependent Claim
117 words
A stent for implanting in a body lumen and deliverable on a delivery catheter having an inflatable balloon portion for expanding the stent, comprising: a plurality of adjacent struts defining a tubular, radially expandable body which is adapted to expand from a collapsed position to an expanded position in the body lumen; and a plurality of tethering clips attached to the struts and positionable in a releasable gripping relationship within a fold formed on the balloon portion of the delivery catheter when placed in the collapsed position to releasably grip the balloon to hold the struts on the balloon portion, the tethering clips being made from material which is different from the material making up the struts.
Claim 51
Dependent Claim
26 words
The stent of claim 43 , wherein: the material used to make the tethering clips has a higher radiopacity that the material making up the struts.
References Cited (Backward Citations)
US5344426A
Cited
US5746745A
Cited
US5836965A
Cited
US5935135A
Cited
US5913871A
Cited
US6254608B1
Cited
US6258099B1
Cited
US6280412B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-12-16 | 2006-06-17 | 2006-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-12-16 | 2010-06-17 | 2010-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-12-16 | 2014-06-17 | 2014-12-17 | $7700.00 | Window Closed / Lapsed |