Extendible stent apparatus
First Claim
1. A stent, the stent comprising:
- a framework defining a plurality of openings,a first section comprising a plurality of first serpentine rings forming a first section, adjacent first serpentine rings engaged by a plurality of connectors;
a second section comprising a plurality of first serpentine rings, adjacent first serpentine rings engaged by a plurality of connectors; and
a continuous band comprising a plurality of loops and defining a side hole having a unique shape as compared to the plurality of openings defined by the framework, the side hole being symmetrical about a first axis, the continuous band being engaged to the first section and to the second section.
0 Assignments
0 Petitions
Accused Products
Abstract
The present invention concerns novel stent apparatuses for use in treating lesions at or near the bifurcation point in bifurcated cardiac, coronary, renal, peripheral vascular, gastrointestinal, pulmonary, urinary and neurovascular vessels and brain vessels. More particularly, the invention concerns a stent apparatus with at least one side opening which may further comprise an extendable stent portion laterally extending from the side opening and at least partly in registry with the wall of the side opening. Devices constructed in accordance with the invention include, singularly or in combination, a main expandable stent comprising at least one substantially circular side opening located between its proximal and distal end openings, which side opening may further comprise an expandable portion extending radially outward from the edges of the side opening; and a branch stent comprising proximal and distal end openings and which may further comprise a contacting portion at its proximal end, and which may optionally be constructed to form either a perpendicular branch or a non-perpendicular branch when inserted through a side opening of the main stent. The stents of the invention are marked with, or at least partially constructed of, a material which is imagable during intraluminal catheterization techniques, most preferably but not limited to ultrasound and x-ray.
-
Citations
32 Claims
-
1. A stent, the stent comprising:
-
a framework defining a plurality of openings, a first section comprising a plurality of first serpentine rings forming a first section, adjacent first serpentine rings engaged by a plurality of connectors; a second section comprising a plurality of first serpentine rings, adjacent first serpentine rings engaged by a plurality of connectors; and a continuous band comprising a plurality of loops and defining a side hole having a unique shape as compared to the plurality of openings defined by the framework, the side hole being symmetrical about a first axis, the continuous band being engaged to the first section and to the second section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A stent, the stent comprising:
-
a plurality of first serpentine rings forming a first portion of the stent, a first axial spine having a first configuration, a portion of the first axial spine forming a portion of each first serpentine ring, the first axial spine opening circumferentially in response to a first pressure; a plurality of second serpentine rings forming a second portion of the stent; and a second axial spine having a second configuration different from the first configuration, a portion of the second axial spine forming a portion of each second serpentine ring, the second axial spine opening circumferentially in response to a second pressure, the second pressure being greater than the first pressure. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
31. A bifurcated stent comprising:
-
a first portion, the first portion comprising a plurality of serpentine bands, each serpentine band comprising a W-shaped structure, the W-shaped structures being longitudinally adjacent to one another; a second portion, the second portion comprising a plurality of serpentine bands, each serpentine band comprising a box element, the box elements being longitudinally adjacent to one another; and a continuous band comprising a plurality of loops defining a side hole, the continuous band being engaged to a W-shaped structure of the first portion and to a box element of the second portion.
-
-
32. A bifurcated stent having a longitudinal axis, the bifurcated stent comprising
a first portion, the first portion comprising a plurality of serpentine bands, each serpentine band comprising a U-shaped loop, the U-shaped loops being longitudinally adjacent to one another; -
a second portion, the second portion comprising a plurality of serpentine bands extending about the longitudinal axis of the stent, the second portion further comprising a longitudinally oriented serpentine element, the longitudinally oriented serpentine element engaging the serpentine bands of the second portion; and a continuous band comprising a plurality of loops and defining a side hole, the continuous band engaged to a U-shaped loop of the first portion and to the longitudinally oriented serpentine element of the second portion.
-
Specification