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Method and system for treating aneurysms

  • US 10,349,946 B2
  • Filed: 05/20/2015
  • Issued: 07/16/2019
  • Est. Priority Date: 04/06/2011
  • Status: Active Grant
First Claim
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1. A system for treating an aneurysm, said system comprising:

  • an elongate flexible inner shaft having a proximal region and a distal region, wherein the inner shaft further comprises a single guidewire lumen extending therethrough;

    a distally tapered nosecone disposed at the distal region of the inner shaft, the nosecone comprising a single through lumen in fluid communication with the guidewire lumen, wherein the single through lumen extends along a longitudinal axis of the nosecone from a proximal opening to a distal opening of the nosecone;

    a guidewire disposed within the inner shaft and extending through the single through lumen of the nosecone; and

    a contrast media for injecting into the single guidewire lumen and the single through lumen of the nosecone, wherein the single guidewire lumen of the inner shaft is sized to allow a flow of the contrast media sufficient for performing angiography while the guidewire is disposed therein,wherein the distal opening of the nosecone is configured to remain open upon removal of the guidewire,wherein the nosecone further comprises one or more open side ports in fluid communication with the single through lumen before and during injection of the contrast media, the one or more side ports disposed between the proximal and distal openings of the single through lumen such that contrast media injected into the single guidewire lumen flows through the one or more side ports,wherein the single through lumen of the nosecone comprises a narrowed distal region having a diameter smaller than a diameter of the single through lumen proximal of the narrowed distal region, the single through lumen being sized to simultaneously receive the guidewire and the flow of contrast media, and wherein the narrowed distal region fittingly receives the guidewire so as to inhibit the flow of the contrast media through the narrowed distal region so as to direct the flow of contrast media out the one or more side ports of the nosecone.

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