Stent and other object removal from a body
AssigneeAngioDynamics, Inc.
InventorPaul Sherburne
Life of this patent
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Abstract
This disclosure contains methods, devices, and systems for object removal from a body, including removal of a stent from a body. Some methods of the present disclosure include inflating a balloon on a catheter, engaging a stent with a socket defined by a surface of the balloon, the surface inwardly sloped toward a lumen of the catheter, and retracting a portion of the stent through the socket and into the lumen. The present disclosure also includes methods for making a catheter, including forming a balloon, inverting a portion of the balloon, and attaching the balloon to a catheter such that a surface of the balloon defines a socket that is inwardly sloped toward a lumen of the catheter.
Claims5
A method for removal of an object located within an anatomical pathway of a blood circulatory system of a body with a catheter, the method comprising:
- introducing a distal end of the catheter into the blood circulatory system in which the object is located, the catheter comprising a first shaft having a lumen with a distal opening, the lumen extending the entire length of the first shaft;
- navigating the distal end of the catheter within the anatomical pathway to a location that is proximal of the object;
- deploying a receiving socket on the distal end of the catheter by inflating a balloon when the distal end of the catheter is at the location, the balloon having a first tail mounted around the first shaft and attached to an outer surface of the first shaft and a second tail mounted around the first shaft distally of the first tail and attached to the outer surface of the first shaft, the balloon inflated through an inflation lumen, the deployed receiving socket inwardly sloped toward the lumen, the deployed receiving socket distal of the distal opening of the lumen of the first shaft, the receiving socket comprising:
- a plurality of polymer arms, each polymer arm having a proximal end and a distal end, the proximal end of each polymer arm attached to the distal end of the first shaft, each polymer arm hinging at the proximal end while the distal end of each polymer arm projects outward upon deployment of the receiving socket;
- and
- flexible polymer material connecting the plurality of polymer arms;
- engaging the deployed receiving socket with the object distally of the distal opening of the lumen of the first shaft;
- moving the object through the deployed receiving socket, through the distal opening, and into the lumen such that the object is moved wholly into the lumen, the outer profile of the object being reduced distally of the distal opening while engaged with the deployed receiving socket such that the object compacts as the object moves through the deployed receiving socket while engaged with the deployed receiving socket;
- and
- removing the object from the body.
Dependencies are inferred from the claim text.