Method for anchoring a medical device
First Claim
1. A method for securing a medical device within a lumen, comprising:
- positioning the medical device within the lumen so as to place a distal end of a hollow leg of the medical device against an inner surface of a wall of the lumen;
advancing an anchor from a stowed configuration within the hollow leg, through an opening in the hollow leg such that an anchor tip completely penetrates through the wall of the lumen from the inner surface to an outer surface; and
continuing to advance the anchor through the opening until the anchor reaches a deployed configuration, wherein, an anchor portion proximal to the anchor tip forms a closed loop that is entirely positioned outside of the wall.
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Accused Products
Abstract
A method and an apparatus for anchoring a medical implant device within a blood vessel or other body passageway are described herein. An anchor delivery system houses one or more expandable anchors connected to the medical implant device. The anchors remain housed in a non-expanded configuration until the medical implant device has been placed in a desired position within the body, and then the anchors are propelled through a body wall where each anchor expands outwardly from an anchor shaft. In one configuration, each anchor is formed as a compressible closed loop which extends outwardly from an anchor shaft and loops back to cross over and extend beyond the anchor shaft. To propel the anchors, a drive shaft is connected to a triggering unit which, when activated, causes the drive shaft to drive the anchor shafts in a direction such that the anchors are propelled through the body wall.
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Citations
19 Claims
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1. A method for securing a medical device within a lumen, comprising:
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positioning the medical device within the lumen so as to place a distal end of a hollow leg of the medical device against an inner surface of a wall of the lumen; advancing an anchor from a stowed configuration within the hollow leg, through an opening in the hollow leg such that an anchor tip completely penetrates through the wall of the lumen from the inner surface to an outer surface; and continuing to advance the anchor through the opening until the anchor reaches a deployed configuration, wherein, an anchor portion proximal to the anchor tip forms a closed loop that is entirely positioned outside of the wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 19)
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10. A method for deploying a medical device in a vessel, wherein the medical device includes hollow leg having an opening proximal to a distal end of the hollow leg, an elongate anchor shaft disposed within the hollow leg, and an anchor at a distal end of the anchor shaft, the anchor having a proximal anchor portion attached to the anchor shaft, a central anchor portion adjacent to the proximal anchor portion, and a tip at the distal end of the anchor adjacent to the central anchor portion, the method comprising:
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advancing the anchor relative to the hollow leg so the anchor distal tip passes through the opening in the hollow leg; penetrating a vessel wall with the anchor tip; further advancing the anchor relative to the hollow leg until the central anchor portion is outside of the vessel wall; and curving the central anchor portion such that the tip crosses over and extends beyond the proximal anchor portion to form a closed loop positioned entirely outside of the vessel wall. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification