Articulating retrieval device
First Claim
1. A retrieval device for removing a foreign object from a body lumen, comprising:
- a flexible coil actuatable between a first position and a second position within a body lumen, the flexible coil including a coiled flat ribbon adapted to assume a substantially straight shape in the first position and an expanded shape forming one or more of helically oriented loops in the second position; and
a core wire operatively coupled to the flexible coil, the core wire having a proximal section and a distal section.
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Accused Products
Abstract
Device and methods for removing a foreign object from a body lumen are disclosed. A retrieval device in accordance with an exemplary embodiment of the present invention may include an elongated member including a flexible collector element, and a core wire that can be engaged by the physician to actuate the collector element between a first position and a second position with the body. The collector element may comprise a coiled section including a coiled flat ribbon adapted to assume a substantially straight shape in the first position and an expanded shape forming one or more helically oriented loops in the second position. In other embodiments, the collector element may comprise a filter basket including a plurality of filter struts adapted to expand in the second position.
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Citations
37 Claims
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1. A retrieval device for removing a foreign object from a body lumen, comprising:
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a flexible coil actuatable between a first position and a second position within a body lumen, the flexible coil including a coiled flat ribbon adapted to assume a substantially straight shape in the first position and an expanded shape forming one or more of helically oriented loops in the second position; and
a core wire operatively coupled to the flexible coil, the core wire having a proximal section and a distal section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A retrieval device for removing a foreign object from a body lumen, comprising:
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an elongated member including a flexible coil section actuatable between a first position and a second position within a body lumen, the flexible coil section including a coiled flat ribbon adapted to assume a substantially straight shape in the first position and an expanded shape forming one or more of helically oriented loops in the second position;
a core wire operatively coupled to the flexible coil section, the core wire having a proximal section and a distal section; and
an actuator mechanism operatively coupled to the proximal section of the core wire. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A retrieval device for removing a foreign object from a body lumen, comprising:
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an elongated member including a flexible coil section actuatable between a first position and a second position within a body lumen, the flexible coil section including a coiled flat ribbon adapted to assume a substantially straight shape in the first position and an expanded shape forming one or more of helically oriented loops in the second position;
one or more fibers each operatively coupled at a plurality of locations to the coiled flat ribbon, each fiber adapted to constrain longitudinal movement of the flexible coil section in the second position;
a core wire operatively coupled to the flexible coil section, the core wire having a proximal section and a distal section; and
an actuator mechanism operatively coupled to the proximal section of the core wire.
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29. A retrieval device for removing a foreign object from a body lumen, comprising:
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an elongated member including a flexible coil section actuatable between a first position and a second position within a body lumen, the flexible coil section including a coiled flat ribbon adapted to assume a substantially straight shape in the first position and an expanded shape forming a plurality of helically oriented loops in the second position, the helically oriented loops having a distally tapered shape;
a core wire operatively coupled to the flexible coil section, the core wire having a proximal section and a distal section; and
an actuator mechanism operatively coupled to the proximal section of the core wire.
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30. A retrieval device for removing a foreign object from a body lumen, comprising:
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a pusher wire having a proximal section and a distal section;
a filter basket operatively coupled to the distal section of the pusher wire, the filter basket including a plurality of filter struts forming a number of expandable basket cells for capturing the foreign object; and
a core wire operatively coupled to one or more of the filter struts. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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Specification