Process for restoring patency to body vessels
Radially expandable endoprosthesis and the like
Stent placement instrument and method
Electronic engine power control system for a motor vehicle
Detachable pusher-vasoocclusion coil assembly with threaded coupling
Vascular catheterization system with catheter anchoring feature
Stent construction of rolled configuration
Assembly for placement of embolic coils using frictional placement
In an endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas
ApplicationNo. 098303 filed on 10/01/1993
US Classes:623/1.22, Helically wound606/194, Inserted in vascular system606/195, Detachable from inflation means623/1.3Having variable diameter
ExaminersPrimary: Brittingham, Debra S.
Attorney, Agent or Firm
International ClassesA61F 002/06
Foreign Application Priority Data1991-02-15 DE
AbstractSpiral implant for organ pathways, in particular for blood vessels, which is formed from a primary spiral made of metal or a primary tube made of an elastic synthetic material whose anterior end is closed and whose cross-section at a distance of 0.5 to 2 mm from the other end of the primary spiral or primary tube is modified for a distance of 0.01 to 10 mm in order to make it possible to reposition the implant. The force required to displace the primary shape on the guide wire serving as an insertion aid amounts to 0.5N to 10N. The invention describes an implant (1) which can be used in vascular surgery or vascular radiology in order to achieve selective blood vessel occlusion. Insertion of the implant (1) into a blood vessel is brought about by means of an insertion catheter (16), with the implant being held in a rectilinear shape by a guide wire (14) slid therein. After the implant has reached the correct position in the organ pathway (18) it assumes a pre-formed spiral shape on the withdrawal of the insertion wire from inside it, thereby ensuring fixation of the implant in the organ pathway.