US20100298931A1
Active / In Force
US
⏱️ 3.5 years remaining
Vascular implant and delivery system
Assignee: Edwards Lifesciences Cardiaq LLC
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Filing: 2010-04-15
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Granted: —
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Expires: 2030-04-15
Abstract
Abstract A vascular implant for replacing a native heart valve comprises a self expanding stent supporting a valve body having leaflets. The stent preferably comprises an anchoring structure configured to prevent the implant from passing through the valve annulus. For delivery, the implant is compacted within a delivery device and secured at one end. During delivery the implant is partially released from the delivery device, and positioning of the implant is verified prior to full release. The implant can be at least partially resheathed and repositioned if desired.
Inventors
- 👤 Arshad Quadri
- 👤 J. Brent Ratz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:04
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2409; A61F2/2412; A61F2/2418; A61F2/2427; A61F2/243; A61F2/2436; A61F2/2439; A61F2/95; A61F2/08; A61F2/0805; A61F2/9522; A61F2/0811; A61F2002/0876; A61F2002/0882; A61F2002/9534; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/0033; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013; A61F2250/00; A61F2250/0004; A61F2250/001
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
104 words
1 . A method of loading a device for delivering a self-expanding vascular implant, comprising: drawing a relaxed, expanded vascular implant through an elongate form having a decreasing diameter to a load tube portion having a compacted diameter; engaging a locking end of the implant with a locking mechanism disposed on a support tube; advancing an outer sheath over the engaged locking end and support tube so as to capture the locking end between the sheath and support tube; and advancing the outer sheath over the compacted implant so as to transfer the implant from within the load tube to within the outer sheath.
Claim 2
Dependent Claim
104 words
1 . A method of loading a device for delivering a self-expanding vascular implant, comprising: drawing a relaxed, expanded vascular implant through an elongate form having a decreasing diameter to a load tube portion having a compacted diameter; engaging a locking end of the implant with a locking mechanism disposed on a support tube; advancing an outer sheath over the engaged locking end and support tube so as to capture the locking end between the sheath and support tube; and advancing the outer sheath over the compacted implant so as to transfer the implant from within the load tube to within the outer sheath.
Claim 3
Dependent Claim
28 words
2 . A method as in claim 1 , wherein transferring the implant from within the load tube to within the outer sheath comprises further compacting the implant.
Claim 4
Dependent Claim
112 words
3 . A vascular implant delivery device, comprising: an elongate support tube having a distal end, a locking mechanism being disposed at or adjacent the distal end; an elongate sheath adapted to slide over the support tube; and a self-expanding vascular implant having a locking member; wherein the support tube locking mechanism is configured to engage the implant locking member so as to block axial movement of the implant when the locking mechanism and locking member are engaged; and wherein the sheath has an inner lumen sized to block the implant locking member from moving radially relative to the support tube locking mechanism sufficient to release from the support tube locking mechanism.
Claim 5
Dependent Claim
112 words
3 . A vascular implant delivery device, comprising: an elongate support tube having a distal end, a locking mechanism being disposed at or adjacent the distal end; an elongate sheath adapted to slide over the support tube; and a self-expanding vascular implant having a locking member; wherein the support tube locking mechanism is configured to engage the implant locking member so as to block axial movement of the implant when the locking mechanism and locking member are engaged; and wherein the sheath has an inner lumen sized to block the implant locking member from moving radially relative to the support tube locking mechanism sufficient to release from the support tube locking mechanism.
Claim 6
Dependent Claim
69 words
4 . A vascular implant delivery device as in claim 3 , wherein the self-expanding vascular implant remains connected to the support tube so long as the sheath extends distally past the support tube locking mechanism, and wherein the device is configured so that when the sheath is moved proximally past the support tube locking mechanism, the implant locking member moves radially out of engagement with the support tube.
Claim 7
Dependent Claim
120 words
5 . A method of delivering a self-expanding vascular implant, comprising: advancing the implant within a patient's vasculature to a desired delivery location, the implant being advanced while maintained in a compacted configuration within a sheath, a first end of the implant being captured between the sheath and a support tube locking mechanism; withdrawing the sheath proximally sufficient to enable a second end of the self-expanding implant to expand radially to a fully expanded size while the first end of the implant remains captured; positioning the second end of the implant in a desired position and orientation while the first end of the implant remains captured; and withdrawing the sheath proximally sufficient to release the first end of the implant.
Claim 8
Dependent Claim
120 words
5 . A method of delivering a self-expanding vascular implant, comprising: advancing the implant within a patient's vasculature to a desired delivery location, the implant being advanced while maintained in a compacted configuration within a sheath, a first end of the implant being captured between the sheath and a support tube locking mechanism; withdrawing the sheath proximally sufficient to enable a second end of the self-expanding implant to expand radially to a fully expanded size while the first end of the implant remains captured; positioning the second end of the implant in a desired position and orientation while the first end of the implant remains captured; and withdrawing the sheath proximally sufficient to release the first end of the implant.
Claim 9
Dependent Claim
68 words
6 . A method as in claim 5 , wherein if it is determined that the second end of the implant is not positioned as desired, the method additionally comprises moving the sheat distally so as to at least partially recapture the implant within the sheath, repositioning the delivery device, and again withdrawing the sheath proximally sufficient to enable the second end of the implant to expand radially.
References Cited (Backward Citations)
US5474563A
Cited
US7585321B2
Cited
US6004328A
Cited
US5935108A
Cited
US6113612A
Cited
US6425916B1
Cited
US6511491B2
Cited
US6858034B1
Cited
US7632298B2
Cited
US7044134B2
Cited
US20100004740A1
Cited
US20070043435A1
Cited
US6936058B2
Cited
US20050033398A1
Cited
US6730118B2
Cited
US20040087900A1
Cited
US7771463B2
Cited
US20050090887A1
Cited
US7186265B2
Cited
US20060253191A1
Cited
US20050137686A1
Cited
US20050234546A1
Cited
US20050182483A1
Cited
US7771472B2
Cited
US20080009934A1
Cited
US20110022157A1
Cited
US20090192601A1
Cited
US20100262157A1
Cited
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