Patent US6350277B1 successfully refreshed from Google Patents.
US6350277B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stents with temporary retaining bands
Assignee: Boston Scientific Scimed Inc
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Filing: 1999-01-15
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Granted: 2002-02-26
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Expires: 2019-01-15
Abstract
Abstract A self-expanding stent is formed of a stent framework and retaining segments disposed about the framework. The retaining segments hold the stent in a partially or fully contracted state in a bodily vessel. The retaining segments are constructed to fail after a predetermined time or upon the application of a predetermined force. Upon failure of the segments, the stent expands in the bodily vessel.
Inventors
- 👤 Gordon J. Kocur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:14
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2002/91533; A61F2002/91541; A61F2002/9155; A61F2002/91558; A61F2/95; A61F2002/9505; A61F2002/9511; A61F2210/00; A61F2210/0004; A61F2250/00; A61F2250/0058; A61F2250/0071
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
109 words
An expandable stent for use in a body lumen comprising: an expandable stent framework, the stent framework expandable from a reduced diameter configuration to a fully expanded configuration; and at least one stent retaining segment disposed about the stent framework, the stent retaining segment formed of at least one segment of material which is non-degradable in the body and at least one segment of degradable material joined together and constructed and arranged to fail upon degradation of at least a portion of the stent retaining segment, the stent retaining segment maintaining the stent framework in a less than fully expanded configuration prior to failure of the stent retaining segment.
Claim 2
Dependent Claim
109 words
An expandable stent for use in a body lumen comprising: an expandable stent framework, the stent framework expandable from a reduced diameter configuration to a fully expanded configuration; and at least one stent retaining segment disposed about the stent framework, the stent retaining segment formed of at least one segment of material which is non-degradable in the body and at least one segment of degradable material joined together and constructed and arranged to fail upon degradation of at least a portion of the stent retaining segment, the stent retaining segment maintaining the stent framework in a less than fully expanded configuration prior to failure of the stent retaining segment.
Claim 3
Dependent Claim
12 words
The stent of claim 1 comprising a plurality of stent retaining segments.
Claim 4
Dependent Claim
26 words
The stent of claim 1 wherein the retaining segment comprises a plurality of alternating segments which are non-degradable in the body and biodegradable segments joined together.
Claim 5
Dependent Claim
26 words
The stent of claim 1 wherein the stent framework comprises a plurality of interconnected struts and the retaining segment connects no more than two adjacent struts.
Claim 6
Dependent Claim
16 words
The stent of claim 1 wherein the retaining segment is in the form of a web.
Claim 7
Dependent Claim
32 words
The stent of claim 1 wherein the at least one stent retaining segment maintains at least a portion of the stent framework in a less than fully expanded configuration of reduced diameter.
Claim 8
Dependent Claim
32 words
The stent of claim 1 wherein the at least one stent retaining segment maintains at least a portion of the stent framework in a less than fully expanded configuration of reduced cross-section.
Claim 9
Dependent Claim
89 words
An expandable stent comprising: an expandable stent framework, the stent framework expandable from a reduced diameter configuration to an initially deployed diameter configuration and being further expandable to a fully expanded configuration; and at least one stent retaining segment disposed about the stent framework, the stent retaining segment constructed to fail in the body by erosion, the stent retaining segment maintaining the stent framework in the initially deployed diameter configuration, the stent retaining segment provided with one or more weakened regions to facilitate failure of the stent retaining segment.
Claim 10
Dependent Claim
89 words
An expandable stent comprising: an expandable stent framework, the stent framework expandable from a reduced diameter configuration to an initially deployed diameter configuration and being further expandable to a fully expanded configuration; and at least one stent retaining segment disposed about the stent framework, the stent retaining segment constructed to fail in the body by erosion, the stent retaining segment maintaining the stent framework in the initially deployed diameter configuration, the stent retaining segment provided with one or more weakened regions to facilitate failure of the stent retaining segment.
Claim 11
Dependent Claim
35 words
The stent of claim 8 wherein the stent retaining segment is constructed to fail after a predetermined amount of time in a bodily lumen as a result of degradation over the predetermined period of time.
Claim 12
Dependent Claim
28 words
The stent of claim 8 wherein the retaining segment is constructed to fail after at least one month in a human bodily lumen as a result of degradation.
Claim 13
Dependent Claim
22 words
The stent of claim 8 where the stent retaining segment is constructed to fail upon the application thereto of a predetermined force.
Claim 14
Dependent Claim
32 words
The stent of claim 8 wherein the at least one stent retaining segment maintains at least a portion of the stent framework in a less than fully expanded configuration of reduced diameter.
Claim 15
Dependent Claim
32 words
The stent of claim 8 wherein the at least one stent retaining segment maintains at least a portion of the stent framework in a less than fully expanded configuration of reduced cross-section.
Claim 16
Dependent Claim
104 words
An expandable stent comprising: an expandable stent framework, the stent framework expandable from a reduced diameter configuration to an initially deployed diameter configuration and being further expandable to a fully expanded configuration; and at least one stent retaining segment made from a material disposed about the stent framework, the stent retaining segment maintaining the stent framework in the initially deployed diameter configuration, the stent retaining segment constructed and arranged to have at least one fatigue point thereon, the stent retaining segment narrowing at the fatigue point, the stent retaining segment constructed and arranged to fail by erosion of the at least one fatigue point.
Claim 17
Dependent Claim
104 words
An expandable stent comprising: an expandable stent framework, the stent framework expandable from a reduced diameter configuration to an initially deployed diameter configuration and being further expandable to a fully expanded configuration; and at least one stent retaining segment made from a material disposed about the stent framework, the stent retaining segment maintaining the stent framework in the initially deployed diameter configuration, the stent retaining segment constructed and arranged to have at least one fatigue point thereon, the stent retaining segment narrowing at the fatigue point, the stent retaining segment constructed and arranged to fail by erosion of the at least one fatigue point.
Claim 18
Dependent Claim
17 words
The stent of claim 14 , wherein the stent retaining segment is made of a biodegradable material.
Claim 19
Dependent Claim
15 words
The stent of claim 15 wherein the biodegradable material is provided with a treatment agent.
Claim 20
Dependent Claim
16 words
The stent of claim 14 wherein the stent retaining segment is provided with a treatment agent.
Claim 21
Dependent Claim
19 words
The stent of claim 14 wherein the stent retaining segment is disposed on the outside of the stent framework.
Claim 22
Dependent Claim
16 words
The stent of claim 14 wherein stent the retaining segment is interwoven through the stent framework.
Claim 23
Dependent Claim
23 words
The stent of claim 14 wherein the stent retaining segment is constructed to fail after a predetermined period of time in the body.
Claim 24
Dependent Claim
15 words
The stent of claim 20 wherein the period of time is at least one month.
Claim 25
Dependent Claim
21 words
The stent of claim 20 wherein the retaining segment is in the form of a band disposed about the stent framework.
Claim 26
Dependent Claim
15 words
The stent of claim 14 the retaining segment having a plurality of fatigue points thereon.
Claim 27
Dependent Claim
15 words
The stent of claim 14 wherein the retaining segment is made of an inert material.
Claim 28
Dependent Claim
10 words
The stent of claim 24 wherein the material is PTFE.
Claim 29
Dependent Claim
99 words
A treatment method comprising the steps of: i) implanting an expandable prosthesis in a bodily lumen, the expandable prosthesis comprising 1) an expandable prosthesis framework, the prosthesis framework expandable from a reduced diameter configuration to a fully expanded configuration; and 2) a prosthesis retaining segment which is constructed to fail upon dissolution of at least a portion thereof, the prosthesis retaining segment formed at least in part of a biodegradable material joined to a material which is non-degradable in the body, the prosthesis retaining segment disposed about the prosthesis and maintaining the prosthesis framework in a reduced diameter configuration.
Claim 30
Dependent Claim
99 words
A treatment method comprising the steps of: i) implanting an expandable prosthesis in a bodily lumen, the expandable prosthesis comprising 1) an expandable prosthesis framework, the prosthesis framework expandable from a reduced diameter configuration to a fully expanded configuration; and 2) a prosthesis retaining segment which is constructed to fail upon dissolution of at least a portion thereof, the prosthesis retaining segment formed at least in part of a biodegradable material joined to a material which is non-degradable in the body, the prosthesis retaining segment disposed about the prosthesis and maintaining the prosthesis framework in a reduced diameter configuration.
Claim 31
Dependent Claim
22 words
The method of claim 26 wherein the prosthesis retaining segment is constructed to fail after a predetermined time in a bodily lumen.
Claim 32
Dependent Claim
14 words
The method of claim 26 wherein the predetermined time is at least one month.
Claim 33
Dependent Claim
95 words
A treatment method comprising the steps of: implanting an expandable prosthesis in a bodily lumen, the expandable prosthesis comprising 1) an expandable prosthesis framework, the prosthesis framework expandable from a reduced diameter configuration to an initially deployed diameter configuration and being further expandable to a fully expanded configuration; and 2) a prosthesis retaining segment which is constructed to have at least one weakened point thereon to facilitate failure of the segment under a predetermined set of conditions, the prosthesis retaining segment disposed about the prosthesis and maintaining the prosthesis framework in the initially deployed diameter.
Claim 34
Dependent Claim
95 words
A treatment method comprising the steps of: implanting an expandable prosthesis in a bodily lumen, the expandable prosthesis comprising 1) an expandable prosthesis framework, the prosthesis framework expandable from a reduced diameter configuration to an initially deployed diameter configuration and being further expandable to a fully expanded configuration; and 2) a prosthesis retaining segment which is constructed to have at least one weakened point thereon to facilitate failure of the segment under a predetermined set of conditions, the prosthesis retaining segment disposed about the prosthesis and maintaining the prosthesis framework in the initially deployed diameter.
Claim 35
Dependent Claim
106 words
An expandable medical endoprosthesis for implantation in a bodily vessel comprising: an expandable endoprosthesis framework expandable from a reduced diameter configuration to a fully expanded configuration; and at least one degradable endoprosthesis retaining structure disposed about the endoprosthesis framework, the endoprosthesis retaining structure formed of at least one segment of material which is non-degradable in the body and at least one segment of degradable material joined together and constructed and arranged to fail upon degradation of at least a portion of the endoprosthesis retaining structure, the endoprosthesis retaining structure maintaining the endoprosthesis framework in a reduced diameter configuration prior to failure of the endoprosthesis retaining structure.
Claim 36
Dependent Claim
106 words
An expandable medical endoprosthesis for implantation in a bodily vessel comprising: an expandable endoprosthesis framework expandable from a reduced diameter configuration to a fully expanded configuration; and at least one degradable endoprosthesis retaining structure disposed about the endoprosthesis framework, the endoprosthesis retaining structure formed of at least one segment of material which is non-degradable in the body and at least one segment of degradable material joined together and constructed and arranged to fail upon degradation of at least a portion of the endoprosthesis retaining structure, the endoprosthesis retaining structure maintaining the endoprosthesis framework in a reduced diameter configuration prior to failure of the endoprosthesis retaining structure.
Claim 37
Dependent Claim
23 words
The endoprosthesis of claim 30 wherein the retaining structure is in the form of a segment disposed about a circumference of the stent.
Claim 38
Dependent Claim
16 words
The endoprosthesis of claim 30 wherein the retaining structure is in the form of a web.
References Cited (Backward Citations)
US3105492A
Cited
US3463158A
Cited
US3272204A
Cited
US3304557A
Cited
US3479670A
Cited
US3878565A
Cited
US3993078A
Cited
US4731073A
Cited
US4655771A
Cited
US4954126B1
Cited
US4954126A
Cited
US4655771B1
Cited
US4610688A
Cited
US4743251A
Cited
US5061275A
Cited
WO1988000813A1
Cited
US5192307A
Cited
EP0382014A1
Cited
US5123917A
Cited
US5064435A
Cited
US5330500A
Cited
US5234457A
Cited
US5433723A
Cited
US5405377A
Cited
US5405378A
Cited
USRE35988E
Cited
US5383926A
Cited
US5445646A
Cited
US5989280A
Cited
US5571135A
Cited
US5556413A
Cited
US5476508A
Cited
US5873906A
Cited
US5632840A
Cited
US5849037A
Cited
US5534007A
Cited
US5843158A
Cited
US5871537A
Cited
US5670161A
Cited
US5830217A
Cited
WO1998011846A1
Cited
US5779732A
Cited
US5972029A
Cited
US5899935A
Cited
US5957975A
Cited
US5873907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-02-25 | 2005-08-27 | 2006-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-02-25 | 2009-08-27 | 2010-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-02-25 | 2013-08-27 | 2014-02-26 | $7700.00 | Window Closed / Lapsed |