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Methods and apparatus for anchoring an occluding member

  • US 20010001812A1
  • Filed: 01/12/2001
  • Published: 05/24/2001
  • Est. Priority Date: 07/16/1991
  • Status: Abandoned Application
First Claim
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1. A method of anchoring a balloon catheter in a patient, comprising the steps of:

  • providing a balloon catheter having a shaft and a balloon mounted to the shaft, the shaft having a distal end and a proximal end, the balloon having an expanded shape and a collapsed shape, the expanded shape being configured to occlude a body passageway in a patient, the balloon including an outer surface having at least two high friction portion and at least two low friction portions, the low friction portion having a lower coefficient of friction than the at least two high friction portions relative to the patient'"'"'s body passageway, the balloon having at least three radially extending arms when in the collapsed shape, each of the at least two low friction portions being positioned at radially outward extremes of adjacent radially extending arms, the high friction portion being exposed and positioned between the radially outward extremes of the adjacent radially extending arms when the balloon is in the collapsed shape, the high friction portion being everted when the balloon moves from the collapsed shape to the expanded shape;

    positioning the balloon in the patient'"'"'s body passageway with the balloon in the collapsed shape so that the radially outward extremes contact the body passageway; and

    advancing the balloon in the patient to a position to be occluded with the balloon in the collapsed shape;

    inflating the balloon after the advancing step so that the high friction portion contacts the patient'"'"'s body passageway for anchoring the balloon in the patient'"'"'s body passageway.

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