Endovascular stent with support wire
First Claim
1. An endoprosthesis for a body lumen comprising:
- an elongate support wire; and
a plurality of modules supported on the support wire at sequential locations along the support wire, each of the plurality of modules being connected to the support wire by a connector secured to the module and attached to the support wire,wherein each module of the plurality of modules defines a closed circumferential loop, the modules being arranged on the support wire to define a generally tubular configuration, andwherein the modules are constructed to be expandable from a radially contracted configuration in which the endoprosthesis can be positioned in the body lumen to a radially expanded configuration, andwherein each module is formed from a serpentine wire having a plurality of elongate segments alternated with shorter connective bends, andwherein the serpentine wire has free terminal ends attached to the connector to secure the module in its closed circumferential loop configuration, andwherein the connector includes an aperture receptive to the support wire and the free terminal ends of the serpentine wire of the associated module.
2 Assignments
0 Petitions
Accused Products
Abstract
An endoluminal stent is formed in a modular construction to include an elongate spine and a plurality of generally tube-defining modules attached to the spine in a longitudinally sequenced array. Each module defines, in cooperation with the spine, a closed ring-like structure, with the modules being aligned in an array to define a generally tubular structure. Each of the modules is radially expandable from a reduced diameter, low profile configuration, in which it is readily navigated through the body passages, to an expanded diameter engageable with the inner luminal surface of the body lumen. The stent, being of modular construction, can be built to individual specifications for specific procedure in a specific patient. Modules are formed from a wire shaped in a flat serpentine configuration that is then wrapped in a cylindrical configuration with its free ends connected to the spine. The modules are expandable, as by a balloon, from a low profile to an expanded configuration. During expansion, the modules can wipe against the inner surface of the lumen to smooth sharp points or edges. The spine of the stent defines a substantially greater mass than that of the individual modules such that the spine can be readily observed under X-ray or fluoroscopy. The modular construction enables a wide range of variation in the characteristics of the stent, including longitudinal flexibility and radial expansion characteristics, among others.
92 Citations
26 Claims
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1. An endoprosthesis for a body lumen comprising:
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an elongate support wire; and a plurality of modules supported on the support wire at sequential locations along the support wire, each of the plurality of modules being connected to the support wire by a connector secured to the module and attached to the support wire, wherein each module of the plurality of modules defines a closed circumferential loop, the modules being arranged on the support wire to define a generally tubular configuration, and wherein the modules are constructed to be expandable from a radially contracted configuration in which the endoprosthesis can be positioned in the body lumen to a radially expanded configuration, and wherein each module is formed from a serpentine wire having a plurality of elongate segments alternated with shorter connective bends, and wherein the serpentine wire has free terminal ends attached to the connector to secure the module in its closed circumferential loop configuration, and wherein the connector includes an aperture receptive to the support wire and the free terminal ends of the serpentine wire of the associated module. - View Dependent Claims (2, 3, 4, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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5. An endoprosthesis for a body lumen comprising:
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an elongate support wire; a plurality of modules supported on the support wire at sequential locations along the support wire, each of the modules being connected to the support wire by a connector secured to the module and attached to the support wire; each module defining a closed circumferential loop the modules being arranged on the support wire to define a generally tubular configuration; the modules being constructed to be expandable from a radially contracted configuration in which it can be positioned in the body lumen to a radially expanded configuration; a spacer mounted on the support wire between at least one pair of modules; wherein an outer surface of the spacer is curved to facilitate its conformance to the curved shape of a wall of the body lumen. - View Dependent Claims (6)
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Specification