Abstract:
Delivery systems for liquid embolics and methods of using them are disclosed. The devices generally include a catheter and one or more retention elements to limit migration of the liquid embolic to non-target sites.
Abstract:
The present disclosure relates generally to devices, systems, and methods for use with tissue, more particularly the present disclosure relates to a device including a frame with a surface defining a pinch point region with a predefined shape. The device also includes a tab with an opening defining an anchor attachment on the frame. The frame can elastically deform under a stress to alter the predefined shape of the pinch point region.
Abstract:
The present disclosure relates generally to devices, systems, and methods for use with tissue, more particularly the present disclosure relates to a device including a frame with a surface defining a pinch point region with a predefined shape. The device also includes a tab with an opening defining an anchor attachment on the frame. The frame can elastically deform under a stress to alter the predefined shape of the pinch point region.
Abstract:
Medical devices, particularly stents, including a polymer body with radiopaque material are disclosed. In some embodiments, a stent (10) can include a stent body (12) including a generally tubular member having a wall that defines at least one void (16), and a radiopaque material (20) bonded to the stent body by a polymer (18). The polymer can span the void, and the radiopaque material can be suspended within the void .
Abstract:
Expandable occlusive plugs and methods of using them are disclosed. The devices generally include a tubular body bearing multiple slits defining leaves, which expand radially outward when the ends of the device are brought toward one another.
Abstract:
A device for sealing an opening in a vessel includes an anchor (20) attached to a suture (30). The anchor is inserted through the opening into the vessel, and the suture pulls the anchor against the vessel wall, forming a seal. A plug (40) is inserted over the suture and is axially compressed toward the anchor, locking the elements in place. The suture is braided or woven outside of the anchor so that it may be stored and handled easily, and is unbraided, unwoven and/or untangled at its distal end inside the anchor, so that individual filaments within the suture may extend laterally within the anchor. The laterally extending filaments subtend a larger footprint within the anchor than a comparable footprint if the suture were to remain braided or tied into a knot within the anchor, which may more effectively distribute the retaining forces within the anchor. In some cases, the plug material is formed from fibers of a mechanically strong material blended into a quick-dissolving material.
Abstract:
The present disclosure provides occlusion devices which comprise (a) a self-expanding support frame having a longitudinal axis comprising a plurality of loops each having an orifice, the support frame being self-expandable from a constrained shape to an unconstrained shape, and (b) a covering material covering an orifice of at least one of the loops. Also provided are assemblies and kits that contain such occlusion devices, and methods of delivering such occlusion devices to a patient.
Abstract:
A catheter includes a flexible shaft having a distal end dimensioned for deployment within a patient's renal artery. A number of elongated resilient members are mounted along a longitudinal length of the distal end of the shaft, and are extensible radially from the shaft at regions defined between longitudinally spaced-apart engagement locations. One or more electrodes are mounted on each of the resilient members at the radially extensible regions. A number of conductors are electrically coupled to the electrodes and extend along the shaft of the catheter. The elongated resilient members are collapsible when encompassed within a lumen of an outer sheath and extensible radially outward from the shaft at the regions defined between the longitudinally spaced-apart engagement locations when the catheter and the resilient members are axially extended beyond the distal tip of the sheath. RF energy is delivered to the electrodes for ablating perivascular renal nerves.
Abstract:
A composite biomaterial having a continuous metal sheet with arcuate members that define a first fenestration pattern, and a polymer layer over at least one surface of the continuous metal sheet. The arcuate members elastically stretch to allow the continuous metal sheet to bend in more than one axis without buckling or wrinkling.
Abstract:
A venous valve with a frame and valve leaflets that provide a sinus pocket. The venous valve provides for unidirectional flow of a liquid through the valve.