Vascular intervention system
First Claim
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1. A medical device comprising:
- a manipulation member comprising a tubular member having an elongate tubular body and a continuous helical cut extending along the body, the cut having an axial length of at least 50 cm, the cut comprising first and second helical slots joined by a connection aperture, wherein a pitch of the cut varies along the first and second helical slots; and
an intervention member configured for mobilizing thrombus, the intervention member being coupled to a distal portion of the manipulation member and advanceable via the manipulation member,wherein a segment of the cut is configured such that the pitch of the cut changes in magnitude at both ends of the segment, by 0.2 mm/rotation or less.
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Abstract
An intravascular intervention system can include a manipulation member sized for insertion into a blood vessel and an intervention member coupled to the manipulation member. The manipulation member can include a longitudinally extending tube having a helical cut extending along the tube. The helical cut can have an axial length of at least 50 cm and be continuous along the axial length. The intervention member can be compressible to a collapsed configuration for delivery to an endovascular treatment site through a catheter and be self-expandable from the collapsed configuration to an expanded configuration.
484 Citations
26 Claims
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1. A medical device comprising:
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a manipulation member comprising a tubular member having an elongate tubular body and a continuous helical cut extending along the body, the cut having an axial length of at least 50 cm, the cut comprising first and second helical slots joined by a connection aperture, wherein a pitch of the cut varies along the first and second helical slots; and an intervention member configured for mobilizing thrombus, the intervention member being coupled to a distal portion of the manipulation member and advanceable via the manipulation member, wherein a segment of the cut is configured such that the pitch of the cut changes in magnitude at both ends of the segment, by 0.2 mm/rotation or less. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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- 13. A vascular intervention system sized for insertion into a blood vessel, the system comprising a manipulation member and an intervention member coupled to the manipulation member, the manipulation member comprising a tube with a plurality of slots connected in an end-to-end manner to form a continuous helical void extending along a length of the tube, wherein adjoining slots intersect with a connection aperture extending through a wall of the tube and having a diameter greater than respective widths of the adjoining slots, the intervention member being configured for mobilizing thrombus, wherein a segment of the void is configured such that a pitch of the void changes in magnitude, at both ends of the segment, by 0.2 mm/rotation or less.
Specification