摘要:
A method of manufacturing a drug loaded stent includes applying a photo resistant coating to at least a portion of a stent framework and removing at least a portion of the photo resistant coating from the stent framework. The method further includes applying an etchant to at least a portion of the stent framework and forming a plurality undercut drug reservoirs in the stent framework based on applying the etchant. A stent for treating a vascular condition includes a stent framework, a plurality of undercut reservoirs formed within the stent framework and a therapeutic agent disposed within at least a portion of the plurality of undercut reservoirs.
摘要:
A method of manufacturing a drug loaded stent includes applying a photo resistant coating to at least a portion of a stent framework and removing at least a portion of the photo resistant coating from the stent framework. The method further includes applying an etchant to at least a portion of the stent framework and forming a plurality undercut drug reservoirs in the stent framework based on applying the etchant. A stent for treating a vascular condition includes a stent framework, a plurality of undercut reservoirs formed within the stent framework and a therapeutic agent disposed within at least a portion of the plurality of undercut reservoirs.
摘要:
A system for treating a vascular condition includes a catheter and a stent disposed on the catheter. The stent includes tubing having a wall defining a central lumen and a plurality of holes. The system further includes a therapeutic agent disposed within the central lumen of the tubing. A method of manufacturing a therapeutic agent carrying stent includes inserting a therapeutic agent within a therapeutic agent delivery system into the central lumen of a hollow metal tube and forming a stent framework from the hollow tube.
摘要:
A toroidal balloon system apparatus and method for use in a vessel includes a catheter defining an inflation lumen and having an inflation port in communication with the inflation lumen; and a toroidal balloon attached to the catheter. The toroidal balloon defines a balloon lumen in communication with the inflation port to inflate the balloon and a central lumen which allows fluid flow through the balloon and the vessel when the toroidal balloon is inflated.
摘要:
An intraluminal stent, an intraluminal stent delivery system, and a method treating a vascular condition. The stent includes a framework including an elongated spiral seam. The framework includes a side edge including an angle formed with respect to an end edge. The system includes a catheter and a stent. The stent includes a framework including an elongated spiral seam. The framework includes a side edge including an angle formed with respect to an end edge. The method includes positioning a stent including at least one spiral seam at a target region of a vessel. The stent is expanded from a compressed configuration to a deployed configuration. At least one therapeutic agent is delivered from the stent along the at least one spiral seam.
摘要:
A drug eluting implantable device includes an exterior surface on the device and at least one recess formed in the exterior surface. The device further include at least one sidewall protruding from the exterior surface adjacent the at least one recess defining a channel with the recess into which the drug may be loaded, the sidewall including a perpendicular portion substantially perpendicular to the exterior surface and the sidewall further including a parallel portion extending from the perpendicular portion, the parallel portion extending from the perpendicular portion at an angle greater than about 90 degrees as measured with reference to the exterior surface.
摘要:
A stent for implantation within the body of a patient is disclosed. The stent can be formed from one or more stent modules comprising a plurality of stent struts, one or more of which have an inner contour designed for streamlined fluid flow when the stent is implanted within an anatomical passageway of the patient.
摘要:
A drug eluting implantable device includes an exterior surface on the device and at least one recess formed in the exterior surface. The device further include at least one sidewall protruding from the exterior surface adjacent the at least one recess defining a channel with the recess into which the drug may be loaded, the sidewall including a perpendicular portion substantially perpendicular to the exterior surface and the sidewall further including a parallel portion extending from the perpendicular portion, the parallel portion extending from the perpendicular portion at an angle greater than about 90 degrees as measured with reference to the exterior surface
摘要:
A method of treating a vascular condition includes applying a plurality of stem cells to an exterior surface of a stent, and enveloping the applied stem cells with a topcoat layer. In addition, the method includes delivering the stent with applied stem cells and topcoat to a treatment region of a vessel within a body; and applying an electrical field to the stent for a predetermined time. A system for treating a vascular condition includes a catheter, a stent disposed on the catheter, at least one layer of stem cells disposed on an exterior surface of the stent, and a topcoat layer surrounding the layer of stem cells. In addition, the system includes at least one electrical lead attached to the stent, the electrical lead operable to induce an electrical field around the stent.
摘要:
An intraluminal stent, an intraluminal stent delivery system, and a method of treating a vascular condition. The stent includes a framework with a plurality of flap portions projecting substantially beyond a central core region. The flap portions are movable from a compressed position and an extended position when the stent is deployed. The system includes a catheter and the intraluminal stent. The method includes positioning an intraluminal stent within a vessel. A plurality of flap portions of the stent is extended from a compressed position into contact with the vessel.