CLOT RETRIEVAL DEVICE FOR REMOVING CLOT FROM A BLOOD VESSEL
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Accused Products
Abstract
A clot retrieval device 1 for removing occlusive clot from a blood vessel, the device comprises an inner elongate body 3 having a collapsed delivery configuration and an expanded deployed configuration and an outer elongate body 2 at least partially overlying the inner elongate body 2. The outer elongate body 2 is expandable to a radial extent which is greater than the radial extent of the inner body 3 in the deployed configuration to define a clot reception space 11. The outer elongate body 2 comprises a distal end portion 24,49 and the inner elongate body 3 comprises a main body portion 10 and a distal portion which extends in the deployed configuration towards the outer elongate body 2 to a greater extent than the main body portion. The distal portion 10 of the inner elongate member 3 and the distal end portion 24,49 of the outer elongate body 2 together define a three dimensional protective structure to substantially prevent distal egress of clot or clot fragments from the device.
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Citations
43 Claims
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1-24. -24. (canceled)
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25. A clot retrieval device for removing clot from a blood vessel, the device having a collapsed delivery configuration and an expanded deployed configuration and comprising:
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an inner expandable body; and an outer expandable body having a closed distal end and at least partially overlying the inner expandable body, the outer expandable body being expandable to a radial extent which is greater than the radial extent of the inner expandable body in the deployed configuration to provide a clot reception space radially between the inner expandable body and the outer expandable body; wherein each of the inner expandable body and the outer expandable body includes a plurality of struts and a porosity provided by the struts of the inner expandable body is less than a porosity provided by the plurality of struts of the outer expandable body. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A clot retrieval device for removing clot from a blood vessel, the device having a collapsed delivery configuration and an expanded deployed configuration and comprising:
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an inner expandable body; and an outer expandable body at least partially overlying the inner expandable body and including a plurality of scaffolding segments and at least one clot inlet mouth between adjacent scaffolding segments, the outer expandable body being expandable to a radial extent which is greater than the radial extent of the inner expandable body in the deployed configuration to provide a clot reception space radially between the inner expandable body and the outer expandable body; wherein each of the inner expandable body and the outer expandable body includes a plurality of struts, wherein a porosity provided by the plurality of struts of the inner expandable body is less than a porosity provided by the plurality of the struts of the outer expandable body. - View Dependent Claims (36, 37, 38)
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39. A clot retrieval device for removing clot from a blood vessel, the device having a collapsed delivery configuration and an expanded deployed configuration and comprising:
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an inner expandable body including a plurality of struts arranged in a uniform strut pattern; and an outer expandable body and at least partially overlying the inner expandable body, the outer expandable body including a plurality of struts arranged in a non-uniform strut pattern, the outer expandable body being expandable to a radial extent which is greater than the radial extent of the inner expandable body in the deployed configuration to provide a clot reception space radially between the inner expandable body and the outer expandable body; wherein a porosity provided by the plurality of struts of the inner expandable body is less than a porosity provided by the plurality of struts of the outer expandable body. - View Dependent Claims (40, 41, 42, 43)
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Specification