摘要:
The present invention is directed to a prosthesis for treating an aneurysm, and delivery systems and methods therefor. The prosthesis includes a radially expanding distal section coupled to a helical section, the helical section including a localized feature configured to exclude or retard blood flow into an aneurysm. Methods of loading the prosthesis onto a specially-designed delivery system that facilitates proper orientation of the prosthesis within a target vessel, and methods of using the delivery system to deliver the prosthesis, also are provided.
摘要:
The present invention is directed to a delivery system for delivering a vascular prosthesis within a vessel, the vascular prosthesis having a contracted delivery configuration and a deployed configuration. The delivery system comprises a loader tube having a lumen preloaded with a delivery wire carrying a vascular prosthesis in the contracted delivery configuration. A separately inserted sheath includes a lumen configured to accept the vascular prosthesis, while retaining it in the contracted delivery configuration. The delivery wire is used to translate the vascular prosthesis to a distal end of the sheath for deployment in a vessel.
摘要:
An implantable vascular prosthesis having improved flexibility is provided comprising a helical body portion having a reduced delivery configuration and an expanded deployed configuration, the helical body portion comprising a plurality of cells interconnected by hinge points that enhances flexibility of the vascular prosthesis and provides at least partial nesting of adjacent turns of the helical body portion in the reduced delivery configuration.
摘要:
An implantable vascular prosthesis having improved flexibility is provided comprising a helical body portion having a reduced delivery configuration and an expanded deployed configuration, the helical body portion comprising a plurality of cells interconnected by hinge points that enhances flexibility of the vascular prosthesis in the reduced delivery configuration.
摘要:
The present invention is directed to a delivery catheter for use in deploying a vascular prosthesis having a self-expanding helical section for use in a wide range of interventional applications. The delivery catheter comprises an elongated member having a helical ledge with a pitch selected to impose a predetermined amount of foreshortening on the vascular prosthesis during deployment. Methods of making and using the delivery catheter of the present invention also are provided.
摘要:
The present invention is directed to a delivery catheter for use in deploying a vascular prosthesis having a self-expanding helical section for use in a wide range of interventional applications. The delivery catheter comprises an elongated member having a helical ledge with a pitch selected to impose a predetermined amount of foreshortening on the vascular prosthesis during deployment. Methods of making and using the delivery catheter of the present invention also are provided.
摘要:
The present invention is directed to a delivery catheter for use in deploying a vascular prosthesis having a self-expanding radial distal section joined to a helical section for use in a wide range of interventional applications. The delivery catheter comprises an elongated member having a balloon disposed adjacent to a distal end of the member, means for engaging the distal section of the vascular prosthesis against axial translation, and a sheath that restrains the vascular prosthesis against the elongated member during transluminal delivery. The balloon also may be used to perform angioplasty of a stenosis located within the vessel prior to deployment of the vascular prosthesis. Methods of using the delivery catheter of the present invention also are provided.