Stent and other object removal from a body
First Claim
1. 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 having a lumen with a distal opening;
navigating the distal end of the catheter within the anatomical pathway to a location that is proximal of the location of the object;
deploying a receiving socket on the distal end of the catheter, the receiving socket deployed by inflation of a balloon mounted on the catheter, the deployed receiving socket having a surface that is inwardly sloped toward the lumen, 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; and
flexible polymer material connecting the plurality of polymer arms, the flexible polymer material including a polymer sheet;
engaging the object with the surface of the deployed receiving socket distally of the distal opening of the lumen, the object having an outer profile;
moving the object through the deployed receiving socket 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 as the object engages the surface of the deployed receiving socket and moves through the deployed receiving socket; and
removing the object from the body within the lumen.
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Accused Products
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.
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Citations
20 Claims
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1. 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:
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introducing a distal end of the catheter into the blood circulatory system in which the object is located, the catheter having a lumen with a distal opening; navigating the distal end of the catheter within the anatomical pathway to a location that is proximal of the location of the object; deploying a receiving socket on the distal end of the catheter, the receiving socket deployed by inflation of a balloon mounted on the catheter, the deployed receiving socket having a surface that is inwardly sloped toward the lumen, 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; and flexible polymer material connecting the plurality of polymer arms, the flexible polymer material including a polymer sheet; engaging the object with the surface of the deployed receiving socket distally of the distal opening of the lumen, the object having an outer profile; moving the object through the deployed receiving socket 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 as the object engages the surface of the deployed receiving socket and moves through the deployed receiving socket; and removing the object from the body within the lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. 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:
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introducing a distal end of the catheter into the blood circulatory system in which the object is located, the catheter comprising a catheter shaft having a central lumen with a distal opening, the central lumen extending the entire length of the catheter shaft; navigating the distal end of the catheter within the anatomical pathway to a location that is proximal of the location of the object; inflating a balloon, the inflation of the balloon deploying a receiving socket on the distal end of the catheter, the deployed receiving socket having a surface that is inwardly sloped toward the central lumen, the balloon having a first tail mounted around the catheter shaft and attached to an outer surface of the catheter shaft and a second tail mounted around the catheter shaft distally of the first tail and attached to the outer surface of the catheter shaft, the balloon inflated through an inflation lumen; engaging the object with the surface of the deployed receiving socket distally of the distal opening of the central lumen of the catheter shaft; moving the object through the deployed receiving socket and into the central lumen, wherein the object is moved wholly into the central lumen and an outer profile of the object is reduced distally of the distal opening as the object engages the surface of the deployed receiving socket and moves through the deployed receiving socket; and removing the object from the body. - View Dependent Claims (14, 15, 16, 17, 18)
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19. 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:
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introducing a distal end of the catheter into the blood circulatory system in which the object is located, the catheter having a central lumen with a distal opening; navigating the distal end of the catheter within the anatomical pathway to a location that is proximal of the location of the object; deploying a receiving socket on the distal end of the catheter, the receiving socket deployed by inflation of a balloon mounted on the catheter, the deployed receiving socket having a surface that is inwardly sloped toward the central lumen, 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; and flexible polymer material connecting the plurality of polymer arms, the flexible polymer material including a polymer sheet; engaging the object with the surface of the deployed receiving socket distally of the distal opening of the central lumen; moving the object through the deployed receiving socket and into the central lumen such that the object is moved wholly into the central lumen, the object moving along the surface of the deployed receiving socket distally of the distal opening as the object moves through the deployed receiving socket; and removing the object from the body. - View Dependent Claims (20)
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Specification