MECHANICAL EMBOLECTOMY DEVICE AND METHOD
First Claim
1. An embolectomy device, comprising:
- a catheter; and
an elongated shaft positioned in and moveable within the catheter, said shaft having proximal and distal end portions, said shaft having a retrieval portion at or near said distal end portion, said retrieval portion having a plurality of legs having proximal and distal ends and a mid-portion between said proximal and distal ends, said mid-portion of said legs being movable laterally outward from a long axis of said elongated shaft when said retrieval portion has been moved out of said catheter.
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Accused Products
Abstract
An embolectomy device includes a catheter and an elongated shaft positioned in and moveable within the catheter. The shaft has proximal and distal end portions, and a retrieval portion between the proximal and distal end portions. The retrieval portion has a plurality of legs having proximal and distal end portions. Portions of the legs are movable laterally outward from a long axis of the elongated shaft when the retrieval portion is at least partially moved out of the catheter. A retrieval net can be fixed to portions of the legs for engaging a clot or other occlusion within a body canal. An expander can be provided for moving portions of an occlusion toward canal walls to open a lumen. A method for removing clots and other occlusions from body canals is also disclosed.
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Citations
24 Claims
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1. An embolectomy device, comprising:
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a catheter; and an elongated shaft positioned in and moveable within the catheter, said shaft having proximal and distal end portions, said shaft having a retrieval portion at or near said distal end portion, said retrieval portion having a plurality of legs having proximal and distal ends and a mid-portion between said proximal and distal ends, said mid-portion of said legs being movable laterally outward from a long axis of said elongated shaft when said retrieval portion has been moved out of said catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An embolectomy device, comprising:
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a catheter; an elongated shaft positioned in and moveable within the catheter, said shaft having proximal and distal end portions, said shaft having a retrieval portion at or near said distal end portion, said retrieval portion having a plurality of legs having proximal and distal portions, distal portions of said legs being movable laterally outward from a long axis of said elongated shaft when said retrieval portion has been at least partially moved out of said catheter; and a retrieval net fixed to said distal portions of said plurality of legs.
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11. An embolectomy device, comprising:
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an outer catheter; and an elongated shaft positioned in and moveable within said outer catheter, said elongated shaft having connected thereto an expander, whereby when said expander is moved from within said outer catheter said expander can expand to engage a clot. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method of performing an embolectomy, comprising the steps of:
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providing an embolectomy device comprising an outer catheter;
an elongated shaft positioned in and moveable within said outer catheter, said elongated shaft having connected thereto an expandable expander, whereby when said expander is moved from within said outer catheter said expander will expand to engage an occlusion;manipulating a distal portion of said outer catheter to a location adjacent to an occlusion in a body canal; moving at least the expander into the occlusion; and expanding the expander to move the occlusion toward said body canal, thereby creating a lumen. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method of performing an embolectomy, comprising the steps of:
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providing an embolectomy device comprising a catheter;
an elongated shaft positioned in and moveable within the catheter, said shaft having proximal and distal end portions, said shaft having a retrieval portion at or near said distal end portion, said retrieval portion having a plurality of legs having proximal and distal end portions, distal portions of said legs being movable laterally outward from a long axis of said elongated shaft when said retrieval portion has been moved at least partially out of said catheter, and a retrieval net fixed to said distal portions of said plurality of legs;manipulating the embolectomy device to a location adjacent to an occlusion in a body canal; moving at least the retrieval portion through the occlusion; moving the retrieval portion at least partially out of the catheter, and moving at least a portion of the legs laterally outward; moving the retrieval portion proximally so as to engage said occlusion with the retrieval net; and removing said microcatheter, elongated shaft, retrieval portion, and portions of siad occlusion from said body canal. - View Dependent Claims (24)
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Specification