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US 2025/0339296 A1Published application
Tapered jugular stents for vascular interventions, and systems and devices thereof
AssigneeNeurovenous Technologies, LLC
InventorCalvin HELMER
Life of this patent
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Abstract
Embodiments described herein relate to a stent for vascular interventions. The stent may be used for jugular vein interventions. The stent addresses challenges inherent to the jugular vein by incorporating adaptability, sizing versatility, and a self-expanding mechanism. In some embodiments, the stent may include Nitinol for biocompatibility. In some embodiments, the stent includes a tapered body and may be configured to have a diameter corresponding to a diameter of a jugular vein of a patient. In some embodiments, the stent may include open-cell and/or closed-cell geometries. In some embodiments, the stent may include peak-to-valley (PTV) and helical bridge connections between cells.
Claims28
A stent, comprising:
- an elongate body configured to be disposed in an internal jugular vein (IJV) of a patient, the elongate body configured to transition from a delivery configuration to a deployed configuration when implanted in the IJV, the elongate body defining a lumen configured to allow blood to flow therethrough, the elongate body including:
- a distal end portion configured to expand to a first diameter against a first portion of a wall of the IJV and having a first rigidity;
- a proximal end portion configured to expand to a second diameter against a second portion of the wall of the IJV and having a second rigidity sufficient to anchor the proximal end portion against the wall of the IJV, the second rigidity greater than the first rigidity, the proximal end portion having a length between about 3 centimeters (cm) and about 7 cm;
- and
- a central portion disposed between the proximal end portion and the distal end portion, the central portion tapering from the proximal end portion to the distal end portion when the elongate body is in the deployed configuration.
2 more elements
A stent, comprising:
- an elongate body configured to be disposed in an internal jugular vein (IJV) of a patient, the elongate body defining a lumen configured to allow blood to flow therethrough, the elongate body configured to expand from a first configuration to a second configuration, the elongate body when disposed in the IJV and in the second configuration including:
- a distal end portion configured to be positioned to be vertically aligned with a portion of a C1 vertebra, the distal end portion having a first length and a first diameter;
- a proximal end portion configured to be positioned near a jugular valve of the patient, the proximal end portion having a second length greater than the first length and a second diameter greater than the first diameter, the second length and the second diameter configured to anchor the proximal end portion against a wall of the IJV;
- and
- a central portion disposed between the proximal end portion and the distal end portion, the central portion tapering from the second diameter to the first diameter over a third length when the elongate body is in the second configuration, the second length being greater than the third length up to about 3.5 times a value of the third length.
2 more elements
A stent, comprising:
- an elongate body configured to be implanted in an IJV of a patient, the elongate body defining a lumen configured to allow blood to flow therethrough, the elongate body having a total length between about 5 cm and about 11 cm, the elongate body including:
- a distal end portion having a first diameter when the elongate body is implanted, the distal end portion including a first set of annular structures and a first set of connection members, each annular structure of the first set of annular structures including a plurality of struts and being coupled to adjacent annular structures by one or more connection members of the first set of connection members, and adjacent annular structures of the first set of annular structures being disposable at a first range of peak-to-peak distances from each other;
- a proximal end portion having a second diameter when the elongate body is implanted, the proximal end portion having a length between about 3 cm and about 7 cm, the proximal end portion including a second set of annular structures and a second set of connection members, each annular structure of the second set of annular structures including a plurality of struts being coupled to adjacent annular structures by one or more connection members of the second set of connection members, and adjacent annular structures of the second set of annular structures being disposable at a second range of peak-to-peak distances from each other,
- an average of the second range of peak-to-peak distances being larger than an average of the first range of peak-to-peak distances, a width of the plurality of struts of the second set of annular structures being greater than a width of the plurality of struts of the first set of annular structures;
- and
- a central portion tapering from the second diameter to the first diameter when the elongate body is implanted.
3 more elements
(canceled)
Dependencies are inferred from the claim text.