STENT FOR SPLINTING A VEIN, AND SYSTEM FOR PUTTING IN PLACE A STENT
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Accused Products
Abstract
The invention relates to a stent and a system for putting in place a stent. Said stent is used especially for splinting a vein and consists of a braided, tubular supporting member (2) that has a minimum length of 60 mm. The supporting member is braided from one or more wires in such a way that portions of the wire or wires, resp., delimit rhombuses. The disclosed stent is characterized in that in the unloaded state of the stent, the longitudinal size of most of the rhombuses (7) in the longitudinal direction (15) of the stent (1) is not shorter than the transversal size of the rhombuses.
27 Citations
48 Claims
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1-24. -24. (canceled)
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25. A stent for splinting a vein, the stent comprising a braided tubular supporting member that has a length of at least 60 millimeters (mm), the supporting member being braided with one or more wires with sections of the wire or the wires, respectively, delimiting rhombuses,
wherein the stent has at least one reinforcement section and at least one hinge section, with the rhombuses in the reinforcement section being shorter in longitudinal direction than the rhombuses of the hinge section.
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40. The stent according to claim
wherein, the widened region extends over a length of at least 5 mm and in particular provides a widening of the diameter of the stent of at least 0.5 mm.
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45. A system for placing a stent in a vein, in which the stent is formed from a braided tubular supporting member, the system comprising:
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an implantation catheter with a lumen for accommodating the stent in compressed state, a positioning catheter which is located inside the implantation catheter and can attach to the compressed stent, a flexible anchor wire which is threaded through openings of the stent, a latch wire which extends across the positioning catheter and is embraced by at least one loop of the anchor wire so that during removal of the latch wire the anchor wire is released and can be pulled out of the stent and the positioning catheter, wherein the latch wire releases the stent is released. - View Dependent Claims (46, 47)
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48. A method for placing a stent in a vein, the method comprising:
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insertion into a vessel or a cavity, respectively, to be splinted in a human or animal body, of the distal end of a system for placing a stent in a vein, in which the stent is formed from a braided tubular supporting member, the system comprising an implantation catheter with a lumen for accommodating the stent in compressed state, a positioning catheter which is located inside the implantation catheter and can attach to the compressed stent, a flexible anchor wire which is threaded through openings of the stent, a latch wire which extends across the positioning catheter and is embraced by at least one loop of the anchor wire so that during removal of the latch wire the anchor wire is released and can be pulled out of the stent and the positioning catheter, wherein the latch wire releases the stent, retraction of the implantation catheter, releasing the stent, retraction of the latch wire, releasing the anchor wire, pulling out the anchor wire, the positioning catheter, and the implantation catheter of the vessel/cavity to be splinted.
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Specification