Removal and repositioning device
First Claim
1. A device for positioning an implantable device within a natural bodily lumen comprising:
- an outer tube defining a lumen;
an inner tube defining a lumen and adapted for insertion into the outer tube;
an elongated member having a proximal end and a distal end, the elongated member slidably disposed within the lumen of the inner tube;
a grasper disposed at the distal end of the elongated member, adapted to engage an implantable device to collapse at least a portion of the implantable device when operated; and
a flared retrieval hood coupled to the distal end of the outer tube and adapted to capture at least a proximal portion of the implantable device when the implantable device is collapsed.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for repositioning an implantable device within a natural bodily lumen includes an inner tube defining an internal lumen and adapted for insertion into a natural bodily lumen. An elongated member is slidably or rotatably disposed within the lumen of the inner tube, with a grasper disposed at the distal end of the elongated member adapted to grasp a portion of the implantable device. The implantable device, once grasped, can be at least partially collapsed. For example, a hook-shaped grasper grasps a drawstring of the implantable device, manipulating the drawstring and causing the implant to radially collapse. A retrieval hood is advanced over the collapsed portion of the implantable device. While maintaining its grasp, the repositioning device and the implantable device can then be repositioned or removed as one unit from the body by pulling the repositioning device from its proximal end.
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Citations
39 Claims
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1. A device for positioning an implantable device within a natural bodily lumen comprising:
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an outer tube defining a lumen;
an inner tube defining a lumen and adapted for insertion into the outer tube;
an elongated member having a proximal end and a distal end, the elongated member slidably disposed within the lumen of the inner tube;
a grasper disposed at the distal end of the elongated member, adapted to engage an implantable device to collapse at least a portion of the implantable device when operated; and
a flared retrieval hood coupled to the distal end of the outer tube and adapted to capture at least a proximal portion of the implantable device when the implantable device is collapsed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of repositioning an implantable device within a natural bodily lumen, the method comprising:
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engaging a drawstring on the implantable device with a grasper disposed at a distal end of an elongated member within an inner tube;
drawing the grasper into a distal portion of the inner tube, when the drawstring is engaged by the grasper to radially collapse at least a proximal portion of the implantable device;
advancing a retrieval hood over at least a proximal portion of the implantable device when collapsed; and
moving the implantable device within the natural bodily lumen. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of repositioning an implantable device within a natural bodily lumen, the method comprising:
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engaging a drawstring disposed on the implantable device with a grasper disposed at a distal end of an elongated member;
positioning the distal end of an inner tube and grasper disposed therein, within an interior portion of the implantable device;
collapsing radially at least a proximal portion of the implantable device by pulling the drawstring with the grasper; and
moving the implantable device within the natural bodily lumen. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification