Clot retrieval device
First Claim
Patent Images
1. A retrieval system for retrieving articles from vessels within a patient, comprising:
- a retrieval unit including a pusher member having a proximal end portion and a distal end portion;
a retrieval basket capable of transforming between an expanded state and a contracted state, said retrieval basket including a proximal end portion and a distal end portion, said proximal end portion of the retrieval basket being connected to the distal end portion of the pusher member;
a closeable opening located in the distal end portion of the retrieval basket, said opening being sized and shaped for receiving an article located within a vessel into the said retrieval basket; and
a control wire connected to the distal end portion of the retrieval basket by at least one tether, and said control wire controls the transformation of the retrieval basket between the expanded state and the contracted state.
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Accused Products
Abstract
A clot retrieval device includes a clot retrieval unit having a pusher member and a retrieval basket connected to the distal end of the pusher member. The retrieval basket is transformable between an expanded state and a contracted state. The retrieval basket also includes a closeable opening in the distal end for receiving a clot into the retrieval basket. The opening and the transition between the expanded and contracted states are controlled by a control wire connected to the distal end of the retrieval basket.
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Citations
21 Claims
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1. A retrieval system for retrieving articles from vessels within a patient, comprising:
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a retrieval unit including a pusher member having a proximal end portion and a distal end portion;
a retrieval basket capable of transforming between an expanded state and a contracted state, said retrieval basket including a proximal end portion and a distal end portion, said proximal end portion of the retrieval basket being connected to the distal end portion of the pusher member;
a closeable opening located in the distal end portion of the retrieval basket, said opening being sized and shaped for receiving an article located within a vessel into the said retrieval basket; and
a control wire connected to the distal end portion of the retrieval basket by at least one tether, and said control wire controls the transformation of the retrieval basket between the expanded state and the contracted state. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13)
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5. The retrieval system of claim 5 wherein the suction source comprises a syringe associated with the pusher member.
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14. A clot retrieval system, comprising;
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a clot retrieval unit including a pusher member having a proximal end portion and a distal end portion;
a retrieval basket having a expanded state and a contracted state, said retrieval basket including a proximal end portion and a distal end portion, said proximal end portion of the retrieval basket being connected to the distal end portion of the pusher member;
a closeable opening located in the distal end portion of the retrieval basket, said opening being sized and shaped for receiving a blood clot into the retrieval basket;
a control member extending through the opening in the distal end of the retrieval basket, said control member being connected to the distal end portion of the retrieval basket to control opening and closing of the opening in the distal end of the retrieval basket and to control the transition of the retrieval basket between the expanded and contracted states; and
a suction source associated with the retrieval system for creating a suction force that moves a clot into the retrieval basket. - View Dependent Claims (15, 16, 17, 18)
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19. A method for retrieving an article from a vessel with a patient, comprising:
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providing a retrieval unit comprising a retrieval basket capable of a transformation between an expanded state and a contracted state, a closeable opening located in a distal end portion of the retrieval basket, and a control member connected to the distal end portion of the retrieval basket;
placing the retrieval basket adjacent an article located in a vessel of the body;
drawing the article through the opening in the distal end portion of the retrieval basket into the retrieval basket;
closing the opening in the distal end portion of the retrieval basket by advancing or retracting the control wire; and
removing the retractable basket from the vessel. - View Dependent Claims (20, 21)
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Specification