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Interventional catheter system and methods

  • US 10,226,598 B2
  • Filed: 06/05/2017
  • Issued: 03/12/2019
  • Est. Priority Date: 02/05/2008
  • Status: Active Grant
First Claim
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1. A method of treating a blood vessel, comprising:

  • transcervically inserting a catheter system into a carotid artery, the catheter system comprising;

    a distal section forming part of a reverse flow path of an embolic protection system;

    a proximal extension outside of the reverse flow path and connected to the distal section by a connector;

    an elongate shaft sized for insertion through the access sheath positioned transcervically in the carotid artery;

    a self-expanding stent positioned on a distal region of the elongate shaft;

    a retractable stent containment member slidably positioned over the elongate shaft and the stent to contain the stent in a collapsed state, wherein the retractable stent containment member is configured to be retracted from the elongate shaft a first length of the distal region exposing the self-expanding stent and wherein the stent containment member is longer than the elongate shaft;

    a control mechanism on a proximal region of the elongate shaft, wherein the control mechanism is coupled to the stent containment member and can be used to retract the stent containment member; and

    a flow shunt fluidly connected to the access sheath and forming a part of the reverse flow path of the embolic protection system, wherein the flow shunt comprises two or more parallel flow paths and a valve to open or close one or more of the parallel flow paths selectively directing blood flow through the one or more of the parallel flow paths to adjust a state of flow through the flow shunt; and

    retracting the stent containment member from the elongate shaft to withdraw the stent containment member from the distal section and into the proximal extension proximal to the connector.

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