Medical device anchor and delivery system
First Claim
1. An anchoring mechanism for an implantable medical device comprising:
- a tubular member configured to be placed within a body lumen and coupled proximally to the implantable medical device, the tubular member having a distal portion with a distal end; and
an anchor comprising;
a tip at the distal end of the anchor,a proximal anchor portion coupled to the tubular member such that the tip of the anchor extends from the distal portion of the tubular member, anda central anchor portion between the tip and the proximal anchor portion,the anchor having a stowed configuration and a deployed configuration,wherein the central anchor portion and the proximal anchor portion are in a substantially linear relationship relative to the tubular member when in the stowed configuration,wherein the central anchor portion is curved to form a closed loop when the anchor is in the deployed configuration; and
wherein the tip and the central portion are configured, when deployed, to extend through a wall of the body lumen from an inner surface of the wall to an outer surface of the wall such that the entire closed loop is positioned outside of the wall and engages the outer surface when the anchor is in the deployed configuration.
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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
16 Claims
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1. An anchoring mechanism for an implantable medical device comprising:
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a tubular member configured to be placed within a body lumen and coupled proximally to the implantable medical device, the tubular member having a distal portion with a distal end; and an anchor comprising; a tip at the distal end of the anchor, a proximal anchor portion coupled to the tubular member such that the tip of the anchor extends from the distal portion of the tubular member, and a central anchor portion between the tip and the proximal anchor portion, the anchor having a stowed configuration and a deployed configuration, wherein the central anchor portion and the proximal anchor portion are in a substantially linear relationship relative to the tubular member when in the stowed configuration, wherein the central anchor portion is curved to form a closed loop when the anchor is in the deployed configuration; and wherein the tip and the central portion are configured, when deployed, to extend through a wall of the body lumen from an inner surface of the wall to an outer surface of the wall such that the entire closed loop is positioned outside of the wall and engages the outer surface when the anchor is in the deployed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification