Dual coil medical retrieval device
First Claim
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1. A medical retrieval device comprising:
- a first actuator having a proximal end portion and a distal end portion;
a first snare coil having a proximal end portion and a distal end portion and being secured to said first actuator distal end portion;
a second actuator having a proximal end portion and a distal end portion; and
a second snare coil having a proximal end portion and a distal end portion, said proximal end portion of said second snare coil being secured to said second actuator distal end portion, said distal end portions of said first and second snare coils being coupled to one another.
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Abstract
A device for retrieving foreign bodies, such as a vaso-occlusive coil or other articles, from within vessels such as those of the cardiovascular system. Two small snare coils are joined at their distal ends to form a loop. The proximal ends of the loops are attached to one or more elongated actuator members. The loop size is adjusted by manipulation of one or more of the proximal ends of the elongated actuator members. This retrieval device may be used to ensnare and either reposition or remove foreign bodies located within a vessel lumen.
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Citations
33 Claims
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1. A medical retrieval device comprising:
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a first actuator having a proximal end portion and a distal end portion; a first snare coil having a proximal end portion and a distal end portion and being secured to said first actuator distal end portion; a second actuator having a proximal end portion and a distal end portion; and a second snare coil having a proximal end portion and a distal end portion, said proximal end portion of said second snare coil being secured to said second actuator distal end portion, said distal end portions of said first and second snare coils being coupled to one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A medical retrieval device comprising:
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a first actuator having a proximal end portion and a distal end portion; a first snare coil having a proximal end portion and a distal end portion and being affixed to said first actuator distal end portion; a second actuator having a proximal end portion and a distal end portion; and a second snare coil having a proximal end portion and a distal end portion and being affixed to said second actuator distal end portion, said distal end portions of said first and second snare coils being joined at a junction such that said snare coils are substantially parallel when said coils are in a relaxed state. - View Dependent Claims (33)
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Specification