Stent and other objects removal from a body
First Claim
Patent Images
1. A method for capturing a stent, comprising:
- deploying an inwardly sloped socket by inflating a balloon coupled to a catheter shaft, a portion of the inwardly sloped socket distal of the catheter shaft when the inwardly sloped socket is deployed, the catheter shaft having a lumen open on a distal end of the catheter shaft;
engaging at least a portion of the stent with the portion of the inwardly sloped socket; and
retracting at least the portion of the stent through the portion of the inwardly sloped socket and into the lumen, an outer profile of the portion of the stent being reduced as the portion of the stent is retracted through the portion of the inwardly sloped socket with which the portion of the stent is engaged.
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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. 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.
137 Citations
28 Claims
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1. A method for capturing a stent, comprising:
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deploying an inwardly sloped socket by inflating a balloon coupled to a catheter shaft, a portion of the inwardly sloped socket distal of the catheter shaft when the inwardly sloped socket is deployed, the catheter shaft having a lumen open on a distal end of the catheter shaft; engaging at least a portion of the stent with the portion of the inwardly sloped socket; and retracting at least the portion of the stent through the portion of the inwardly sloped socket and into the lumen, an outer profile of the portion of the stent being reduced as the portion of the stent is retracted through the portion of the inwardly sloped socket with which the portion of the stent is engaged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for removal of an object from within a body, comprising:
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deploying an inwardly sloped socket by inflation of a balloon connected to a catheter shaft, 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 at least a portion of the inwardly sloped socket that is distal of the catheter shaft with a portion of the object in the body, the portion of the object having an outer profile that is larger than the inner diameter profile of the distal end opening of the lumen; and funneling at least the portion of the object into the lumen by reducing the outer profile of the portion of the object by relative movement between the engaged portions of the inwardly sloped socket and the object. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A retrieval system for removal of an object within a body, comprising:
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a catheter shaft comprising a distal end, a proximal end, and a lumen open on the distal end of the catheter shaft; an attachment tool movable within the lumen of the catheter shaft; and means for reducing an outer profile of a portion of the object distally of the catheter shaft by axial movement of the portion of the object and funneling the portion of the object into the lumen, the axial movement of the portion of the object facilitated by the attachment tool. - View Dependent Claims (18, 19, 20, 21)
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22. A method for capturing an object within a body with a catheter, the catheter having a shaft, a proximal end, a distal end having a deployable inwardly sloped socket, and a lumen having an inner diameter, the catheter having a control connected to the proximal end that controls deployment of the inwardly sloped socket, wherein a tool is moveable within the lumen, the method comprising:
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deploying the inwardly sloped socket within the body by the control, the inwardly sloped socket distal of the lumen; engaging the inwardly sloped socket and the object, an outer profile of the object larger than the inner diameter of the lumen; retracting at least a portion of the object through the inwardly sloped socket and into the lumen by reducing the outer profile of the object as the portion of the object moves along a surface of the inwardly sloped socket, wherein the object is attached to the tool during retraction and the portion of the object is retracted through the inwardly sloped socket by movement of the tool within the lumen; and decreasing an outer profile of the distal end of the catheter after the at least the portion of the object has been retracted into the lumen. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification