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US 2026/0263100 A1Published application
Retrieval systems and methods for use thereof
AssigneeCovidien LP
InventorsBrian B. Martin, Martin S. Dieck
Life of this patent
Estimating the term…
Abstract
The devices and methods described herein relate to improved structures for removing obstructions from body lumens. Such devices have applicability in through-out the body, including clearing of blockages within the vasculature, by addressing the frictional resistance on the obstruction prior to attempting to translate and/or mobilize the obstruction within the body lumen
Claims21
-23. (canceled)
A system for removing an obstruction from a blood vessel, the system comprising:
- a first elongate member having a first lumen;
- a second elongate member arranged at least partially within the first lumen and having a second lumen, wherein at least a portion of the second elongate member is configured to have a radially expanded state upon release from the first elongate member;
- an elongate shaft having a distal region, a proximal region, and a longitudinal axis extending between the distal and proximal regions;
- and
- a capturing portion formed from a plurality of wires and configured to engage the obstruction, the capturing portion having a radially reduced state and a fully radially expanded state, wherein when the capturing portion is in the radially reduced state, at least a portion of the capturing portion is positionable in the second lumen, and wherein the capturing portion includes:
- a first section fixed relative to the distal region of the elongate shaft, and
- a second section connected to the first section and terminating in a free end unattached to another portion of the device other than the second section, and
- wherein, when the elongate shaft is moved in a proximal direction, the first section inverts within the second section.
5 more elements
A system for removing an obstruction from a blood vessel, the system comprising:
- a first elongate member having a first lumen;
- a second elongate member arranged at least partially within the first lumen and having a second lumen, wherein at least a portion of the second elongate member is configured to have a radially expanded state upon release from the first elongate member;
- an elongate shaft having a distal region, a proximal region, and a longitudinal axis extending between the distal and proximal regions;
- and
- a capturing portion formed from a plurality of wires and configured to engage the obstruction, the capturing portion having a radially reduced state and a fully radially expanded state, wherein when the capturing portion is in the radially reduced state, at least a portion of the capturing portion is positionable in the second lumen, and wherein the capturing portion includes:
- a first section fixed relative to the distal region of the elongate shaft, and
- a second section connected to the first section and terminating in a free end unattached to another portion of the device other than the second section, and
- wherein the capturing portion is movable between:
- a first configuration in which the first section is distal to the second section, and
- a second configuration in which the first section is inverted within the second section.
7 more elements
Dependencies are inferred from the claim text.