Self-assembling modular percutaneous valve and methods of folding, assembly and delivery
First Claim
1. A modular percutaneous prosthetic valve device, comprising a plurality of components, said components including a valve module and a self-assembly member, each in a delivery configuration for mounting in a delivery device, said valve module having a leaflet substructure and a folded, unassembled delivery configuration designed to unfold into a working configuration after deployment from said delivery device due to a configuration change of said self-assembly member, said self-assembly member selected from a group consisting of a wire, a band or a strip and having a delivery configuration extending in a generally linear direction along a longitudinal axis of said delivery device, wherein said self-assembly member moves from said delivery configuration to said working configuration after deployment from said delivery device, wherein the self-assembly member is attached to the leaflet substructure in the working configuration.
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Accused Products
Abstract
The present invention provides a modular prosthetic valve device having two or more device modules for percutaneous delivery unassembled at or near the valve implantation site and assembly at least in part using a self-assembly member, and a system and method of folding, delivering and assembling the device. The device modules may include a support structure and a valve module. The valve module has an unassembled, folded delivery configuration, and an unfolded, assembled (via the self-assembly member) working configuration. The valve module may be a single-piece leaflets substructure or a plurality of valve sections. The self-assembly member has a delivery configuration and may be reverted to a preset configuration for valve module assembly. The unassembled valve module may be rolled along its circumferential axis towards its height to a folded diameter equivalent to one rolled leaflet, providing a percutaneous valve device having a smaller delivery diameter than pre-assembled valve devices.
36 Citations
35 Claims
- 1. A modular percutaneous prosthetic valve device, comprising a plurality of components, said components including a valve module and a self-assembly member, each in a delivery configuration for mounting in a delivery device, said valve module having a leaflet substructure and a folded, unassembled delivery configuration designed to unfold into a working configuration after deployment from said delivery device due to a configuration change of said self-assembly member, said self-assembly member selected from a group consisting of a wire, a band or a strip and having a delivery configuration extending in a generally linear direction along a longitudinal axis of said delivery device, wherein said self-assembly member moves from said delivery configuration to said working configuration after deployment from said delivery device, wherein the self-assembly member is attached to the leaflet substructure in the working configuration.
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16. A modular percutaneous valve device, comprising:
a folded valve module for mounting in a delivery device, and capable of unfolding for assembly after delivery to an unfolded, substantially flat unassembled configuration, having a base, apex, circumferential axis and a height axis extending from the base to the apex, and a folded configuration rolled in the direction of said height axis from the base to the apex or the apex to the base. - View Dependent Claims (17, 18)
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22. A method of folding a valve module of a modular valve device for delivery in a percutaneous delivery device comprising:
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providing a valve device that when substantially flattened has a base, apex, height axis extending from the base to the apex and a circumferential axis; folding said valve module in a manner selected from the group consisting of;
rolling said unassembled, substantially flattened valve in the direction of said height axis, and squashing said valve module prior to loading into said delivery device.
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- 23. A self-assembly member for assembling a valve module of a modular prosthetic percutaneous valve device after deployment from a delivery device, wherein said self-assembly member is selected from a group consisting of a wire, a band or a strip and has a delivery configuration and a preset configuration, and wherein when in said preset configuration said self-assembly member comprises a ring portion, and in said delivery configuration said ring portion opens up to extend in a generally linear direction along the longitudinal axis of said delivery device.
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28. A method of assembling a modular valve device comprising:
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providing a percutaneous delivery device containing a valve module and a self-assembly member, said valve module having a leaflets substructure, said self-assembly member is selected from a group consisting of a wire, a band or a strip, said self-assembly member extending in a generally linear direction along a longitudinal axis of said delivery device in the delivery configuration, and said valve module in a folded, unassembled delivery configuration; deploying said folded, unassembled delivery configuration of said valve module from said delivery device; unfolding said folded, unassembled delivery configuration of said valve module to form an unfolded valve module; reverting said self-assembly member to a preset configuration; and assembling said unfolded valve module into a working configuration using said self-assembly member, wherein the self-assembly member is attached to the leaflet substructure in the working configuration. - View Dependent Claims (29, 30, 31, 32)
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33. A method of assembling a modular prosthetic valve device in a body in need thereof, comprising:
- providing a delivery device containing a plurality of device modules and a self-assembly member, said self-assembly member in a delivery configuration, said plurality of device modules comprising an expandable support structure compressed to an unexpanded configuration and a leaflets substructure in a folded configuration, wherein when laid out in an unassembled, unfolded substantially flat configuration said leaflets substructure has a height axis and a circumferential axis and said self-assembly member is attached to said leaflets substructure circumferential axis, and wherein said folded configuration of said leaflets substructure comprises rolling in the direction of said height axis prior to loading into said delivery device;
deploying said unexpanded support structure and said folded leaflets substructure from said delivery device;
expanding said support structure;
unfurling said folded leaflets substructure and triggering said self-assembly member to revert to a preset configuration;
assembling said leaflets substructure to form a valve component using said self-assembly member; and
combining said valve component and said support structure to form an assembled valve device.
- providing a delivery device containing a plurality of device modules and a self-assembly member, said self-assembly member in a delivery configuration, said plurality of device modules comprising an expandable support structure compressed to an unexpanded configuration and a leaflets substructure in a folded configuration, wherein when laid out in an unassembled, unfolded substantially flat configuration said leaflets substructure has a height axis and a circumferential axis and said self-assembly member is attached to said leaflets substructure circumferential axis, and wherein said folded configuration of said leaflets substructure comprises rolling in the direction of said height axis prior to loading into said delivery device;
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34. A modular percutaneous prosthetic valve device, comprising:
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a folded valve module, said folded valve module having a folded, delivery configuration, wherein said folded valve module is capable of unfolding for assembly after delivery from a delivery device to an unfolded, substantially flat unassembled configuration; and a self-assembly member for assembling said folded valve module after delivery from said delivery device, said self-assembly member selected from a group consisting of a wire, a band, or a strip and having a delivery configuration and a preset configuration, wherein when in said preset configuration said self-assembly member comprises a ring portion, and in said delivery configuration said ring portion opens up to extend in a generally linear direction along a longitudinal axis of said delivery device.
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35. A modular percutaneous prosthetic valve device, comprising a valve module and a self-assembly member, each in a delivery configuration for mounting in a delivery device, said valve module having a folded delivery configuration capable of unfolding for self-assembly and being assembled into a working configuration via said self-assembly member after deployment from said delivery device, said self-assembly member comprising a ring portion in said working configuration, said self-assembly member having a straight delivery configuration parallel to a longitudinal axis of said delivery device, and the valve module is in a squashed configuration when in the folded delivery configuration.
Specification