US20050090887A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delivery system for long self-expanding stents
Assignee: Medtronic Vascular Inc
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Filing: 2003-10-22
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Granted: —
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Expires: 2023-10-22
Abstract
Abstract The initial deployment of a self-expanding stent is performed by the physician manually retracting the sheath of a delivery system. This provides the physician with complete control of the initial deployment of the stent. Further, once the stent is securely engaged within the parent vessel, the remaining deployment over the remaining length of the stent is performed automatically by retraction of the sheath by a spring. Since the physician simply initiates the deployment of the stent, the deployment is readily performed using only a single hand of the physician.
Inventors
- 👤 Jack Pryor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:08
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/9517; A61F2/962; A61F2/966
Claims Analysis
Total Claims: 50
Claim 1
Independent Claim
41 words
1 . A delivery system comprising: a housing; a sheath; a slider coupled to said sheath, said slider being located within said housing; an engagement plate coupled to said housing; and a source of stored energy coupled to said engagement plate.
Claim 2
Dependent Claim
41 words
1 . A delivery system comprising: a housing; a sheath; a slider coupled to said sheath, said slider being located within said housing; an engagement plate coupled to said housing; and a source of stored energy coupled to said engagement plate.
Claim 3
Dependent Claim
17 words
2 . The delivery system of claim 1 wherein said slider comprises a collet and a collar.
Claim 4
Dependent Claim
25 words
3 . The delivery system of claim 2 wherein said collet comprises a tapered surface for facilitating coupling of said collet to said engagement plate.
Claim 5
Dependent Claim
19 words
4 . The delivery system of claim 2 wherein said collar is an annulus slidably mounted around said sheath.
Claim 6
Dependent Claim
17 words
5 . The delivery system of claim 2 wherein said collet is coupled to said engagement plate.
Claim 7
Dependent Claim
17 words
6 . The delivery system of claim 2 wherein said engagement plate is an annular shaped member.
Claim 8
Dependent Claim
21 words
7 . The delivery system of claim 2 wherein said collet includes an aperture aligned with a lumen of said sheath.
Claim 9
Dependent Claim
21 words
8 . The delivery system of claim 2 further comprising at least one breakaway coupling said engagement plate to said housing.
Claim 10
Dependent Claim
24 words
9 . The delivery system of claim 8 wherein a slider movement mechanism slot of said housing ends near said at least one breakaway.
Claim 11
Dependent Claim
25 words
10 . The delivery system of claim 8 wherein said at least one breakaway is a mechanism that disengages said engagement plate from said housing.
Claim 12
Dependent Claim
18 words
11 . The delivery system of claim 1 further comprising a braking mechanism coupled to said engagement plate.
Claim 13
Dependent Claim
29 words
12 . The delivery system of claim 11 wherein said braking mechanism is selected from the group consisting of a frictional mechanism, a pneumatic mechanism and a kinetic mechanism.
Claim 14
Dependent Claim
23 words
13 . The delivery system of claim 11 wherein said braking mechanism comprises an air seal between said engagement plate and said housing.
Claim 15
Dependent Claim
19 words
14 . The delivery system of claim 13 further comprising one or more vent apertures allowing air to escape.
Claim 16
Dependent Claim
37 words
15 . The delivery system of claim 11 wherein said braking mechanism comprises a brake plate coupled to said engagement plate and a brake wheel coupled to said housing, said brake wheel engaged with said brake plate.
Claim 17
Dependent Claim
27 words
16 . The delivery system of claim 15 wherein said brake plate comprises teeth coupled to teeth of said brake wheel in a rack and pinion arrangement.
Claim 18
Dependent Claim
17 words
17 . The delivery system of claim 15 further comprising a flywheel coupled to said brake wheel.
Claim 19
Dependent Claim
13 words
18 . The delivery system of claim 17 wherein said flywheel comprises paddles.
Claim 20
Dependent Claim
31 words
19 . The delivery system of claim 11 wherein said braking mechanism comprises friction pads coupled to said engagement plate, said friction pads being flexible members that press against said housing.
Claim 21
Dependent Claim
17 words
20 . The delivery system of claim 1 wherein said source of stored energy comprises a spring.
Claim 22
Dependent Claim
17 words
21 . The delivery system of claim 20 further comprising an anchor plate coupled to said spring.
Claim 23
Dependent Claim
16 words
22 . The delivery system of claim 1 further comprising a stent constrained by said sheath.
Claim 24
Dependent Claim
21 words
23 . The delivery system of claim 22 further comprising an inner member, said stent being positioned around said inner member.
Claim 25
Dependent Claim
36 words
24 . The delivery system of claim 1 further comprising a slider movement mechanism coupled to said slider, said slider movement mechanism extending from inside said housing through a slider movement mechanism slot of said housing.
Claim 26
Dependent Claim
19 words
25 . The delivery system of claim 1 further comprising means for connecting said slider to said engagement plate.
Claim 27
Dependent Claim
26 words
26 . The delivery system of claim 1 wherein said slider comprises locking protrusions and said engagement plate comprises locking apertures aligned with said locking protrusions.
Claim 28
Dependent Claim
40 words
27 . A method comprising: manually retracting a sheath to initiate deployment of a stent; connecting a slider coupled to said sheath to an engagement plate; and disengaging said engagement plate from a housing to complete deployment of said stent.
Claim 29
Dependent Claim
40 words
27 . A method comprising: manually retracting a sheath to initiate deployment of a stent; connecting a slider coupled to said sheath to an engagement plate; and disengaging said engagement plate from a housing to complete deployment of said stent.
Claim 30
Dependent Claim
19 words
28 . The method of claim 27 wherein upon said disengagement, said engagement plate is moved by a spring.
Claim 31
Dependent Claim
16 words
29 . The method of claim 27 wherein upon said disengagement, said sheath is retracted automatically.
Claim 32
Dependent Claim
16 words
30 . The method of claim 27 wherein said stent self-expands upon retraction of said sheath.
Claim 33
Dependent Claim
21 words
31 . The method of claim 27 wherein said connecting comprises snapping locking protrusions of said slider to said engagement plate.
Claim 34
Dependent Claim
43 words
32 . A method comprising: manually retracting a sheath to initiate deployment of a stent; connecting a collet of a slider coupled to said sheath to an engagement plate; and disengaging said engagement plate from a housing to complete deployment of said stent.
Claim 35
Dependent Claim
43 words
32 . A method comprising: manually retracting a sheath to initiate deployment of a stent; connecting a collet of a slider coupled to said sheath to an engagement plate; and disengaging said engagement plate from a housing to complete deployment of said stent.
Claim 36
Dependent Claim
44 words
33 . A delivery system comprising: a housing; a sheath; a slider coupled to said sheath, said slider being located within said housing; an anchor plate coupled to said housing; and a source of stored energy coupled to said slider and said anchor plate.
Claim 37
Dependent Claim
44 words
33 . A delivery system comprising: a housing; a sheath; a slider coupled to said sheath, said slider being located within said housing; an anchor plate coupled to said housing; and a source of stored energy coupled to said slider and said anchor plate.
Claim 38
Dependent Claim
37 words
34 . A method comprising: disengaging a slider from a housing, said slider being coupled to a sheath, wherein upon said disengaging, a source of stored energy retracts said slider and said sheath to deploy a stent.
Claim 39
Dependent Claim
37 words
34 . A method comprising: disengaging a slider from a housing, said slider being coupled to a sheath, wherein upon said disengaging, a source of stored energy retracts said slider and said sheath to deploy a stent.
Claim 40
Dependent Claim
23 words
35 . The method of claim 34 wherein said source of stored energy is coupled to said slider and to an anchor plate.
Claim 41
Dependent Claim
54 words
36 . A delivery system comprising: a sheath; a slider coupled to said sheath; an engagement plate; an engagement plate support member coupled to said engagement plate; at least one breakaway coupling said slider to said engagement plate support member; and a source of stored energy coupled to said slider and said engagement plate.
Claim 42
Dependent Claim
54 words
36 . A delivery system comprising: a sheath; a slider coupled to said sheath; an engagement plate; an engagement plate support member coupled to said engagement plate; at least one breakaway coupling said slider to said engagement plate support member; and a source of stored energy coupled to said slider and said engagement plate.
Claim 43
Dependent Claim
20 words
37 . The delivery system of claim 36 further comprising means for connecting said engagement plate to an anchor plate.
Claim 44
Dependent Claim
36 words
38 . The delivery system of claim 37 wherein said engagement plate comprises at least one locking protrusion and said anchor plate comprise at least one locking aperture aligned with said at least one locking protrusion.
Claim 45
Dependent Claim
64 words
39 . A method comprising: manually retracting a slider coupled to a sheath to initiate deployment of a stent; connecting an engagement plate to an anchor plate, said engagement plate being coupled to an engagement plate support member, said engagement plate support member being coupled to said slider; and disengaging said slider from said engagement plate support member to complete deployment of said stent.
Claim 46
Dependent Claim
64 words
39 . A method comprising: manually retracting a slider coupled to a sheath to initiate deployment of a stent; connecting an engagement plate to an anchor plate, said engagement plate being coupled to an engagement plate support member, said engagement plate support member being coupled to said slider; and disengaging said slider from said engagement plate support member to complete deployment of said stent.
Claim 47
Dependent Claim
18 words
40 . The method of claim 39 wherein upon said disengaging, said slider is moved by a spring.
Claim 48
Dependent Claim
16 words
41 . The method of claim 39 wherein upon said disengaging, said sheath is retracted automatically.
Claim 49
Dependent Claim
25 words
42 . The method of claim 39 wherein said connecting comprises snapping at least one locking protrusion of said engagement plate to said anchor plate.
Claim 50
Dependent Claim
22 words
43 . The method of claim 27 wherein upon said disengagement, said engagement plate is moved by a source of stored energy.
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