US6599314B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for stenting a vessel using balloon-actuated stent with interlocking elements
Assignee: Cordis US Corp
•
Filing: 2001-06-08
•
Granted: 2003-07-29
•
Expires: 2021-06-08
Abstract
Abstract An apparatus for stenting a vessel comprises a stent having a lattice of interconnecting elements defining a substantially cylindrical configuration having a first open end and a second open end wherein the lattice is movable between a closed configuration and an open configuration. In one embodiment, the stent includes a plurality of interlocking bridges. In a second embodiment, the stent includes a plurality of interlocking struts. The apparatus further includes a catheter having an inner sleeve and an expandable member on the inner sleeve wherein the expandable member is movable between a collapsed state and an expanded state. For either embodiment, the stent is secured to the catheter over the expandable member when the expandable member is in the collapsed state and the stent is in the locked configuration. The stent is separated from the catheter when the expandable member is in the expanded state and the stent is in the open configuration. A method for stenting the vessel also includes deploying both stent embodiments at a desired location within a vessel.
Inventors
- 👤 Mark Mathis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:41
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/95; A61F2/962; A61L; A61L27/00; A61L27/02; A61L27/04; A61M; A61M25/00; A61M25/10; A61F2/958; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2002/91591; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054
Claims Analysis
Total Claims: 61
Claim 1
Independent Claim
216 words
An apparatus for stenting a vessel comprising: a stent having a lattice of interconnecting elements including a plurality of adjacent hoops, each hoop comprising a plurality of loops, and the lattice defining a substantially cylindrical configuration having a first open end and a second open end, the lattice being movable between a locked configuration and an open configuration, and a plurality of bridges, each bridge having a first end and a second end, the first end of each bridge being attached to a loop of one hoop and the second end of each bridge attached a loop on an adjacent hoop when the stent is in the locked configuration and the open configuration, each bridge interlocking with an adjacent bridge in the locked configuration and each bridge separating from the adjacent bridge in the open configuration; a catheter having an inner sleeve and an expandable member on the inner sleeve, the expandable member being movable between a collapsed state and an expanded state, the stent being secured to the catheter over the expandable member when the expanded member is in the collapsed state and the stent is in the locked configuration and the stent being separated from the catheter when the expanded member is in the expanded state and the stent is in the open configuration.
Claim 2
Independent Claim
216 words
An apparatus for stenting a vessel comprising: a stent having a lattice of interconnecting elements including a plurality of adjacent hoops, each hoop comprising a plurality of loops, and the lattice defining a substantially cylindrical configuration having a first open end and a second open end, the lattice being movable between a locked configuration and an open configuration, and a plurality of bridges, each bridge having a first end and a second end, the first end of each bridge being attached to a loop of one hoop and the second end of each bridge attached a loop on an adjacent hoop when the stent is in the locked configuration and the open configuration, each bridge interlocking with an adjacent bridge in the locked configuration and each bridge separating from the adjacent bridge in the open configuration; a catheter having an inner sleeve and an expandable member on the inner sleeve, the expandable member being movable between a collapsed state and an expanded state, the stent being secured to the catheter over the expandable member when the expanded member is in the collapsed state and the stent is in the locked configuration and the stent being separated from the catheter when the expanded member is in the expanded state and the stent is in the open configuration.
Claim 3
Dependent Claim
18 words
The apparatus according to claim 1 , wherein the catheter includes a cover movable disposed over the stent.
Claim 4
Dependent Claim
15 words
The apparatus according to claim 1 , wherein the expandable member is an inflatable balloon.
Claim 5
Dependent Claim
14 words
The apparatus according to claim 3 , wherein the cover is an outer sheath.
Claim 6
Dependent Claim
15 words
The apparatus according to claim 4 , wherein the sheath is made of a polymer.
Claim 7
Dependent Claim
15 words
The apparatus according to claim 1 , wherein the stent is made of an alloy.
Claim 8
Dependent Claim
15 words
The apparatus according to claim 6 , wherein the stent is made of stainless steel.
Claim 9
Dependent Claim
16 words
The apparatus according to claim 6 , wherein the stent is made of a superelastic alloy.
Claim 10
Dependent Claim
16 words
The apparatus according to claim 8 , wherein the stent is made of nickel titanium (NiTi).
Claim 11
Dependent Claim
13 words
The apparatus according to claim 1 , wherein the stent is crush recoverable.
Claim 12
Dependent Claim
16 words
The apparatus according to claim 10 , wherein the stent is made of nickel titanium (NiTi).
Claim 13
Dependent Claim
31 words
The apparatus according to claim 1 , wherein each bridge has a projection and a base, the base having a projection holding section for receiving the projection from the adjacent bridge.
Claim 14
Dependent Claim
15 words
The apparatus according to claim 12 , wherein each hoop comprises at least one strut.
Claim 15
Dependent Claim
17 words
The apparatus according to claim 12 , wherein each bridge has lateral arms extending from the base.
Claim 16
Dependent Claim
16 words
The apparatus according to claim 14 , wherein the projection holding section has an opening therein.
Claim 17
Dependent Claim
18 words
The apparatus according to claim 15 , wherein an extension is connected between the base and the projection.
Claim 18
Dependent Claim
25 words
The apparatus according to claim 16 , wherein the extension includes a neck and the projection is located at a superior position on the neck.
Claim 19
Dependent Claim
16 words
The apparatus according to claim 17 , wherein the projection includes at least one lateral lip.
Claim 20
Dependent Claim
30 words
The apparatus according to claim 18 , wherein the projection holding section includes at least one lateral ledge for releasable engaging the at least one lateral lip of the projection.
Claim 21
Dependent Claim
22 words
The apparatus according to claim 9 , wherein the projection includes at least one sidewall adjacent the at least one lateral lip.
Claim 22
Dependent Claim
36 words
The apparatus according to claim 20 , wherein the projection holding section includes at least one lateral depression adjacent the at least one lateral ledge for releasably engaging the at least one sidewall of the projection.
Claim 23
Dependent Claim
15 words
The apparatus according to claim 21 , wherein the at least one sidewall is curved.
Claim 24
Dependent Claim
15 words
The apparatus according to claim 22 , wherein the at least one depression is curved.
Claim 25
Dependent Claim
15 words
The apparatus according to claim 23 , wherein the lateral arms connect the interconnecting elements.
Claim 26
Independent Claim
261 words
A method for stenting a vessel comprising the steps of: (a) providing an apparatus comprising: (i) a stent having a lattice of interconnecting elements including a plurality of adjacent hoops, each hoop comprising a plurality of loops, and the lattice defining a substantially cylindrical configuration having a first open end and a second open end, the lattice being movable between a locked configuration and an open configuration, and a plurality of bridges, each bridge having a first end and a second end, the first end of each bridge being attached to a loop of one hoop and the second end of each bridge attached a loop on an adjacent hoop when the stent is in the locked configuration and the open configuration, each bridge interlocking with an adjacent bridge in the locked configuration and each bridge separating from the adjacent bridge in the open configuration; (ii) a catheter having an inner sleeve and an expandable member on the inner sleeve, the expandable member being movable between a collapsed state and an expanded state, the stent being secured to the catheter over the expandable member when the expandable member is in the collapsed state and the stent is in the locked configuration and the stent being separated from the catheter when the expandable member is in the expanded state and the stent is in the open configuration; (b) inserting the apparatus within a vessel; (c) positioning the distal end of the apparatus at a desired location within the vessel; and (d) deploying the stent to the open configuration with the expandable member.
Claim 27
Independent Claim
261 words
A method for stenting a vessel comprising the steps of: (a) providing an apparatus comprising: (i) a stent having a lattice of interconnecting elements including a plurality of adjacent hoops, each hoop comprising a plurality of loops, and the lattice defining a substantially cylindrical configuration having a first open end and a second open end, the lattice being movable between a locked configuration and an open configuration, and a plurality of bridges, each bridge having a first end and a second end, the first end of each bridge being attached to a loop of one hoop and the second end of each bridge attached a loop on an adjacent hoop when the stent is in the locked configuration and the open configuration, each bridge interlocking with an adjacent bridge in the locked configuration and each bridge separating from the adjacent bridge in the open configuration; (ii) a catheter having an inner sleeve and an expandable member on the inner sleeve, the expandable member being movable between a collapsed state and an expanded state, the stent being secured to the catheter over the expandable member when the expandable member is in the collapsed state and the stent is in the locked configuration and the stent being separated from the catheter when the expandable member is in the expanded state and the stent is in the open configuration; (b) inserting the apparatus within a vessel; (c) positioning the distal end of the apparatus at a desired location within the vessel; and (d) deploying the stent to the open configuration with the expandable member.
Claim 28
Dependent Claim
34 words
The method according to claim 25 , wherein the catheter further includes a cover movably disposed over the stent wherein the cover prevents the stent from moving to the open configuration during steps (a)-(c).
Claim 29
Dependent Claim
22 words
The method according to claim 25 , further comprising deploying the stent to the open configuration by inflation of the expandable member.
Claim 30
Dependent Claim
24 words
The method according to claim 25 , further comprising securing the stent to the catheter by interlocking the bridges prior to performing steps (b)-(d).
Claim 31
Dependent Claim
16 words
The method according to claim 28 , further comprising removing the catheter after performing step (d).
Claim 32
Independent Claim
223 words
An apparatus for stenting a vessel comprising: (i) a stent having a lattice of interconnecting elements including a plurality of adjacent hoops, each hoop comprising a plurality of loops, and the lattice defining a substantially cylindrical configuration having a first open end and a second open end, the lattice having a locked configuration and an open configuration, the interconnecting elements including a plurality of bridges, each bridge having a first end and a second end, the first end of each bridge being attached to a loop of one hoop and the second end of each bridge attached a loop on an adjacent hoop when the stent is in the locked configuration and the open configuration, a plurality of struts, each strut interlocking with an adjacent strut in the locked configuration and each strut separating from the adjacent strut in the open configuration; (ii) a catheter having an inner sleeve and an expandable member on the inner sleeve, the expandable member being movable between a collapsed state and an expanded state, the stent being secured to the catheter over the expandable member when the expandable member is in the collapsed state and the stent is in the locked configuration and the stent being separated from the catheter when the expandable member is in the expanded state and the stent is in the open configuration.
Claim 33
Independent Claim
223 words
An apparatus for stenting a vessel comprising: (i) a stent having a lattice of interconnecting elements including a plurality of adjacent hoops, each hoop comprising a plurality of loops, and the lattice defining a substantially cylindrical configuration having a first open end and a second open end, the lattice having a locked configuration and an open configuration, the interconnecting elements including a plurality of bridges, each bridge having a first end and a second end, the first end of each bridge being attached to a loop of one hoop and the second end of each bridge attached a loop on an adjacent hoop when the stent is in the locked configuration and the open configuration, a plurality of struts, each strut interlocking with an adjacent strut in the locked configuration and each strut separating from the adjacent strut in the open configuration; (ii) a catheter having an inner sleeve and an expandable member on the inner sleeve, the expandable member being movable between a collapsed state and an expanded state, the stent being secured to the catheter over the expandable member when the expandable member is in the collapsed state and the stent is in the locked configuration and the stent being separated from the catheter when the expandable member is in the expanded state and the stent is in the open configuration.
Claim 34
Dependent Claim
18 words
The apparatus according to claim 30 , wherein the catheter includes a cover movably disposed over the stent.
Claim 35
Dependent Claim
14 words
The apparatus according to claim 31 , wherein the cover is an outer sheath.
Claim 36
Dependent Claim
15 words
The apparatus according to claim 32 , wherein the sheath is made of a polymer.
Claim 37
Dependent Claim
15 words
The apparatus according to claim 30 , wherein the expandable member is an inflatable balloon.
Claim 38
Dependent Claim
15 words
The apparatus according to claim 30 , wherein the stent is made of an alloy.
Claim 39
Dependent Claim
15 words
The apparatus according to claim 35 , wherein the stent is made of stainless steel.
Claim 40
Dependent Claim
16 words
The apparatus according to claim 35 , wherein the stent is made of a superelastic alloy.
Claim 41
Dependent Claim
16 words
The apparatus according to claim 37 , wherein the stent is made of nickel titanium (NiTi).
Claim 42
Dependent Claim
13 words
The apparatus according to claim 32 , wherein the stent is crush recoverable.
Claim 43
Dependent Claim
16 words
The apparatus according to claim 39 , wherein the stent is made of nickel titanium (NiTi).
Claim 44
Dependent Claim
31 words
The apparatus according to claim 30 , wherein each strut has a projection and a base, the base having a projection holding section for receiving the projection from the adjacent strut.
Claim 45
Dependent Claim
15 words
The apparatus according to claim 41 , wherein each hoop includes at least one strut.
Claim 46
Dependent Claim
17 words
The apparatus according to claim 41 , wherein each strut has lateral arms extending from the base.
Claim 47
Dependent Claim
16 words
The apparatus according to claim 43 , wherein the projection holding section has an opening therein.
Claim 48
Dependent Claim
18 words
The apparatus according to claim 44 , wherein an extension is connected between the base and the projection.
Claim 49
Dependent Claim
16 words
The apparatus according to claim 45 , wherein the projection includes at least one lateral lip.
Claim 50
Dependent Claim
30 words
The apparatus according to claim 46 , wherein the projection holding section includes at least one lateral ledge for releasably engaging the at least one lateral lip of the projection.
Claim 51
Dependent Claim
22 words
The apparatus according to claim 47 , wherein the projection includes at least one sidewall adjacent the at least one lateral lip.
Claim 52
Dependent Claim
36 words
The apparatus according to claim 48 , wherein the projection holding section includes at least one lateral depression adjacent the at least one lateral ledge for releasably engaging the at least one sidewall of the projection.
Claim 53
Dependent Claim
15 words
The apparatus according to claim 49 , wherein the at least one sidewall is curved.
Claim 54
Dependent Claim
15 words
The apparatus according to claim 50 , wherein the at least one depression is curved.
Claim 55
Dependent Claim
15 words
The apparatus according to claim 51 , wherein the lateral arms connect the interconnecting elements.
Claim 56
Independent Claim
268 words
A method for stenting a vessel comprising the steps of: (a) providing an apparatus comprising: (i) a stent having a lattice of interconnecting elements including a plurality of adjacent hoops, each hoop comprising a plurality of loops, and the lattice defining a substantially cylindrical configuration having a first open end and a second open end, the lattice being movable between a locked configuration and an open configuration, a plurality of bridges, each bridge having a first end and a second end, the first end of each bridge being attached to a loop of one hoop and the second end of each bridge attached a loop on an adjacent hoop when the stent is in the locked configuration and the open configuration, and a plurality of struts connecting the loops, each strut interlocking with an adjacent strut in the locked configuration and each strut separating from the adjacent strut in the open configuration; (ii) a catheter having an inner sleeve and an expandable member on the inner sleeve, the expandable member being movable between a collapsed state and an expanded state, the stent being secured to the catheter over the expandable member when the expandable member is in the collapsed state and the stent is in the locked configuration and the stent being separated from the catheter when the expandable member is in the expanded state and the stent is in the open configuration; (b) inserting the apparatus within a vessel; (c) positioning the distal end of the apparatus at a desired location within the vessel; and (d) deploying the stent to the open configuration with the expandable member.
Claim 57
Independent Claim
268 words
A method for stenting a vessel comprising the steps of: (a) providing an apparatus comprising: (i) a stent having a lattice of interconnecting elements including a plurality of adjacent hoops, each hoop comprising a plurality of loops, and the lattice defining a substantially cylindrical configuration having a first open end and a second open end, the lattice being movable between a locked configuration and an open configuration, a plurality of bridges, each bridge having a first end and a second end, the first end of each bridge being attached to a loop of one hoop and the second end of each bridge attached a loop on an adjacent hoop when the stent is in the locked configuration and the open configuration, and a plurality of struts connecting the loops, each strut interlocking with an adjacent strut in the locked configuration and each strut separating from the adjacent strut in the open configuration; (ii) a catheter having an inner sleeve and an expandable member on the inner sleeve, the expandable member being movable between a collapsed state and an expanded state, the stent being secured to the catheter over the expandable member when the expandable member is in the collapsed state and the stent is in the locked configuration and the stent being separated from the catheter when the expandable member is in the expanded state and the stent is in the open configuration; (b) inserting the apparatus within a vessel; (c) positioning the distal end of the apparatus at a desired location within the vessel; and (d) deploying the stent to the open configuration with the expandable member.
Claim 58
Dependent Claim
34 words
The method according to claim 53 , within the catheter further includes a cover movably disposed over the stent wherein the cover prevents the stent from moving to the open configuration during steps (a)-(c).
Claim 59
Dependent Claim
22 words
The method according to claim 54 , further comprising deploying the stent to the open configuration by inflation of the expandable member.
Claim 60
Dependent Claim
24 words
The method according to claim 53 , further comprising securing the stent to the catheter by interlocking the struts prior to performing steps (b)-(d).
Claim 61
Dependent Claim
16 words
The method according to claim 56 , further comprising removing the catheter after performing step (d).
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