Intraluminal extraction catheter
First Claim
1. An expandable intraluminal catheter adapted to remove occlusive material from a body passage, comprising:
- an elongate tubular body having a longitudinal axis and a proximal elongate tubular body end axially movable with respect to a distal elongate tubular body end;
a plurality of radially-expandable segments formed from a mesh material and disposed linearly along the longitudinal axis of the elongate tubular body between the proximal tubular body end and the distal elongate tubular body end; and
a fixed element connected to the distal elongate tubular body end and extending proximally through the elongate tubular body and proximal to said proximal elongate tubular body end; and
an actuator coupled to the proximal elongate tubular body end over said fixed element for actuating the plurality of radially-expandable segments by moving the proximal tubular body end relative to the fixed element and the distal tubular body end, to thereby cause each of the plurality of radially-expandable segments to radially expand into semi-rigid enlarged-diameter segments.
3 Assignments
0 Petitions
Accused Products
Abstract
The expandable intraluminal catheter is used for removing occlusive material from a body passage. The catheter includes a handle having both a proximal handle end and a distal handle end. Attached to the distal handle end is an elongate tubular body, which includes a proximal elongate tubular body end and a distal elongate tubular body end. The elongate tubular body further includes a lumen between the proximal elongate tubular body end and the distal elongate tubular body end. A number of radially-expandable segments are disposed on the elongate tubular body near the distal elongate tubular body end. These radially-expandable segments can be mechanically activated by a user when the distal elongate tubular body end is within a blood vessel, to thereby contact and partition occlusive material within the blood vessel. The partitioned occlusive material within the blood vessel can then be removed.
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Citations
18 Claims
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1. An expandable intraluminal catheter adapted to remove occlusive material from a body passage, comprising:
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an elongate tubular body having a longitudinal axis and a proximal elongate tubular body end axially movable with respect to a distal elongate tubular body end; a plurality of radially-expandable segments formed from a mesh material and disposed linearly along the longitudinal axis of the elongate tubular body between the proximal tubular body end and the distal elongate tubular body end; and a fixed element connected to the distal elongate tubular body end and extending proximally through the elongate tubular body and proximal to said proximal elongate tubular body end; and an actuator coupled to the proximal elongate tubular body end over said fixed element for actuating the plurality of radially-expandable segments by moving the proximal tubular body end relative to the fixed element and the distal tubular body end, to thereby cause each of the plurality of radially-expandable segments to radially expand into semi-rigid enlarged-diameter segments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An expandable intraluminal catheter adapted to remove occlusive material from a body passage, comprising:
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a hollow handle having a proximal handle end and a distal handle end; an elongate tubular body having a proximal elongate tubular body end disposed within the hollow handle and movable relative to a distal elongate tubular body end, and a lumen extending between the proximal elongate tubular body end and the distal elongate tubular end; a plurality of radially-expandable segments disposed axially along the elongate tubular body between the proximal elongate tubular body end and the distal elongate tubular body end; an expandable distal member, located on the elongate tubular body between the distal elongate tubular body end and the plurality of radially-expandable segments; a non-expandable member disposed within the lumen of the elongate tubular body, the non-expandable member having a proximal non-expandable member end connected to said handle and a distal non-expandable member end connected to the distal elongate tubular body end; and an actuator coupled to said proximal tubular body end through said hollow handle for actuating the plurality of radially expandable segments and the expandable distal member to radially expand in response to movement of the proximal elongate tubular body end over said non-expandable member toward the distal elongate tubular body end and to radially contract in response to movement of the proximal elongate tubular end over said non-expandable member away from the distal elongate tubular body end. - View Dependent Claims (15, 16, 17)
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18. An expandable intraluminal catheter adapted to remove occlusive material from a body passage, comprising:
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a hollow handle having a proximal handle end and a distal handle end; an elongate tubular body having a proximal elongate tubular body end disposed within the hollow handle and movable relative to a distal elongate tubular body end, and a lumen extending between the proximal elongate tubular body end and the distal elongate tubular end; a plurality of radially-expandable segments disposed axially along the elongate tubular body between the proximal elongate tubular body end and the distal elongate tubular body end; an expandable distal member located on the elongate tubular body between the distal elongate tubular body end and the plurality of radially-expandable segments; a non-expandable member disposed within the lumen of the elongate tubular body, the non-expandable member having a proximal non-expandable member end connected to said handle and a distal non-expandable member end connected to the distal elongate tubular body end; an actuator coupled to said proximal tubular body end through said hollow handle for actuating the plurality of radially expandable segments and the expandable distal member to radially expand in response to movement of the proximal elongate tubular body end over said non-expandable member toward the distal elongate tubular body ends and to radially contract in response to movement of the proximal elongate tubular end over said non-expandable member away from the distal elongate tubular body end; and the expandable distal member comprises a elastomeric foam, which, when expanded by the actuator, is deformable from an elongated shape into a generally spherical shape.
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Specification