Delivery of medical devices
First Claim
1. A stent delivery system comprising a hypotube 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, wherein a segment of the cut is configured such that the pitch of the cut changed in magnitude, at both ends of the segment, by 0.2 mm/rotation or less.
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Accused Products
Abstract
A stent delivery system can include an elongate core member sized for insertion into a blood vessel. The core member can be configured to advance a stent toward a treatment location in the blood vessel. The core 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.
485 Citations
28 Claims
- 1. A stent delivery system comprising a hypotube 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, wherein a segment of the cut is configured such that the pitch of the cut changed in magnitude, at both ends of the segment, by 0.2 mm/rotation or less.
- 11. An elongate core member sized for insertion into a blood vessel, the core member comprising a plurality of slots connected in an end-to-end manner to form a continuous helical void extending along the length of the core member, wherein adjoining slots intersect with a connection aperture extending through a wall of the core member and having a diameter greater than respective widths of the adjoining slots, 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