Stent and other object removal from a body

摘要

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.

主权项

1. A method for removal of an object from within a body, comprising:
deploying an inwardly sloped receiving socket connected to a catheter shaft, the deployed 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 catheter, each polymer arm hinging at the proximal end while the distal end of each polymer arm projects outward upon deployment of the receiving socket, a flexible polymer material connecting the plurality of polymer arms, the catheter shaft having a distal end and a lumen with a distal end opening on the distal end of the catheter shaft, the lumen having an inner diameter profile at the distal end opening; engaging a portion of the object in the body distal of the catheter shaft with at least a portion of the inwardly sloped receiving socket; moving the object through the inwardly sloped receiving socket and into the lumen.