US6416539B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled length intraluminal implant
Assignee: Smiths Medical ASD Inc
•
Filing: 1998-06-29
•
Granted: 2002-07-09
•
Expires: 2018-06-29
Abstract
Abstract The invention relates to an intraluminal implant ( 1 ) manufactured from a seamless thin walled metal tube. The inventive device consists of a large number of expandable rings 92 ). The adjacent rings ( 2 ) are connected to each other by one of two extendible rods ( 4 ). Each radially expandable ring ( 2 ) can consists of one or several bands ( 3 ) which can be enlarged. The adjacent bands ( 3 ) are connected each other by means of rods ( 5 ) extending in an axial direction. The stent is highly flexible; as a result, its longitudinal extension remains practically unchanged when it is enlarged.
Inventors
- 👤 Hans Hassdenteufel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:00
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2002/91525; A61F2002/91533; A61F2002/91541; A61F2002/9155; A61F2002/91558; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
170 words
An intraluminal implant for expanding a blood vessel comprising: a thin, tubular member, the thin tubular member being cut from a seamless, thin-walled metal tube in such a manner that two axially outer, and one or more axially inner, expandable rings of net-like or meander-like webs result, any two adjacent rings being interconnected with each other by only a pair of stretchable connecting webs curved in the axial direction of the tubular member with the stretchable connecting webs of the pair being angularly offset from each in a first radial direction at an angle of less than 180°, having a first diameter for the intraluminal conveyance of the tubular member, which may be expanded to a variable second diameter by exerting a radial, outwardly directed force from inside the tubular member, and which is inserted into the blood vessel by means of a balloon-tipped catheter and expanded therein, and wherein connecting web pairs succeeding each other in the axial direction being disposed angularly offset with respect to the preceding ones.
Claim 2
Dependent Claim
170 words
An intraluminal implant for expanding a blood vessel comprising: a thin, tubular member, the thin tubular member being cut from a seamless, thin-walled metal tube in such a manner that two axially outer, and one or more axially inner, expandable rings of net-like or meander-like webs result, any two adjacent rings being interconnected with each other by only a pair of stretchable connecting webs curved in the axial direction of the tubular member with the stretchable connecting webs of the pair being angularly offset from each in a first radial direction at an angle of less than 180°, having a first diameter for the intraluminal conveyance of the tubular member, which may be expanded to a variable second diameter by exerting a radial, outwardly directed force from inside the tubular member, and which is inserted into the blood vessel by means of a balloon-tipped catheter and expanded therein, and wherein connecting web pairs succeeding each other in the axial direction being disposed angularly offset with respect to the preceding ones.
Claim 3
Dependent Claim
22 words
The intraluminal implant of claim 1 wherein the offset in the first radial direction is at an angle of 60° to 120°.
Claim 4
Dependent Claim
13 words
The intraluminal implant of claim 1 , the connecting webs being arcuately curved.
Claim 5
Dependent Claim
38 words
The intraluminal implant of claim 1 wherein each expandable ring includes at least two hoops of meandering webs which hoops are connected to each other by a plurality of additional expandable connecting webs curved in the axial direction.
Claim 6
Dependent Claim
36 words
The intraluminal implant of claim 4 , the connecting webs between adjacent rings being curved arcuately in a first direction and the additional connecting webs between adjacent hoops being curved arcuately in a second, opposite direction.
Claim 7
Dependent Claim
33 words
The intraluminal implant of claim 4 wherein each of the axially outermost rings has an axially outermost hoop, the axially outermost hoops having a greater axial length than any other of the hoops.
Claim 8
Dependent Claim
27 words
The intraluminal implant of claim 4 wherein the hoops forming the axially outermost rings are longer than the hoops forming the one or more axially inner rings.
Claim 9
Dependent Claim
18 words
The intraluminal implant of claim 1 , each meandering web of the rings having a plurality of cusps.
Claim 10
Dependent Claim
31 words
The intraluminal implant of claim 8 , wherein each of the axially outermost rings has a plurality of axially outermost cusps, at least the axially outermost cusps having wide flat portions.
Claim 11
Dependent Claim
162 words
An intraluminal implant for expanding a blood vessel comprising: a thin, tubular member, the thin tubular member being cut from a seamless, thin-walled metal tube in such a manner that two axially outer, and one or more axially inner, expandable rings of net-like or meander-like webs result, any two adjacent rings being interconnected with each other by only a pair of stretchable connecting webs curved in the axial direction of the tubular member with the stretchable connecting webs of the pair being disposed so that they are not diametrically opposed, having a first diameter for the intraluminal conveyance of the tubular member, which may be expanded to a variable second diameter by exerting a radial, outwardly directed force from inside the tubular member, and which is inserted into the blood vessel by means of a balloon-tipped catheter and expanded therein, and wherein connecting web pairs succeeding each other in the axial direction being disposed angularly offset with respect to the preceding ones.
Claim 12
Dependent Claim
162 words
An intraluminal implant for expanding a blood vessel comprising: a thin, tubular member, the thin tubular member being cut from a seamless, thin-walled metal tube in such a manner that two axially outer, and one or more axially inner, expandable rings of net-like or meander-like webs result, any two adjacent rings being interconnected with each other by only a pair of stretchable connecting webs curved in the axial direction of the tubular member with the stretchable connecting webs of the pair being disposed so that they are not diametrically opposed, having a first diameter for the intraluminal conveyance of the tubular member, which may be expanded to a variable second diameter by exerting a radial, outwardly directed force from inside the tubular member, and which is inserted into the blood vessel by means of a balloon-tipped catheter and expanded therein, and wherein connecting web pairs succeeding each other in the axial direction being disposed angularly offset with respect to the preceding ones.
Claim 13
Dependent Claim
13 words
The intraluminal implant of claim 10 , the connecting webs being arcuately curved.
Claim 14
Dependent Claim
38 words
The intraluminal implant of claim 10 wherein each expandable ring includes at least two hoops of meandering webs which hoops are connected to each other by a plurality of additional expandable connecting webs curved in the axial direction.
Claim 15
Dependent Claim
36 words
The intraluminal implant of claim 12 , the connecting webs between adjacent rings being curved arcuately in a first direction and the additional connecting webs between adjacent hoops being curved arcuately in a second, opposite direction.
Claim 16
Dependent Claim
33 words
The intraluminal implant of claim 12 wherein each of the axially outermost rings has an axially outermost hoop, the axially outermost hoops having a greater axial length than any other of the hoops.
Claim 17
Dependent Claim
27 words
The intraluminal implant of claim 12 wherein the hoops forming the axially outermost rings are longer than the hoops forming the one or more axially inner rings.
Claim 18
Dependent Claim
18 words
The intraluminal implant of claim 10 , each meandering web of the rings having a plurality of cusps.
Claim 19
Dependent Claim
31 words
The intraluminal implant of claim 16 , wherein each of the axially outermost rings has a plurality of axially outermost cusps, at least the axially outermost cusps having wide flat portions.
Claim 20
Dependent Claim
23 words
The intraluminal implant claim 10 , the axially outermost rings having a greater axial length than the one or more axially inner rings.
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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) | 2005-07-08 | 2006-01-07 | 2006-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-07-08 | 2010-01-07 | 2010-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-07-08 | 2014-01-07 | 2014-07-09 | $7700.00 | Window Closed / Lapsed |