Rapid-exchange retractable sheath self-expanding delivery system with incompressible inner member and flexible distal assembly
First Claim
1. A delivery system for delivery of a medical device, the delivery system comprising:
- an inner member having a proximal section, a distal section and a longitudinal axis therebetween, the inner member including a first layer and a second layer, the first layer and the second layer being attached together at a first segment and a second segment, the second segment being spaced from the first segment along a length of the inner member, the first layer and the second layer being free of attachment between the first segment and the second segment;
the inner member further comprising at least two wires disposed along the length of the inner member between the first layer and the second layer, wherein the at least two wires include a first coil wound about the longitudinal axis in a first direction and a second coil wound about the longitudinal axis in an opposite direction, the first coil having a first diameter and the second coil having a second diameter, wherein at least one of the first diameter and the second diameter changes when a torque is applied; and
an outer member disposed about the inner member.
1 Assignment
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Accused Products
Abstract
Delivery system for delivery of a medical device includes an inner member having a proximal section, a distal section and a longitudinal axis therebetween. The inner member has a first layer and a second layer wherein the first layer and the second layer are attached together at a first segment and a second segment. The second segment is spaced from the first segment along a length of the inner member and the first layer and the second layer are free of attachment between the first segment and the second segment. The inner member further includes at least two wires disposed along the length of the inner member between the first layer and the second layer. As disclosed, the at least two wires can include a first coil and a second coil moveable relative to each other between the first and second segments.
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Citations
25 Claims
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1. A delivery system for delivery of a medical device, the delivery system comprising:
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an inner member having a proximal section, a distal section and a longitudinal axis therebetween, the inner member including a first layer and a second layer, the first layer and the second layer being attached together at a first segment and a second segment, the second segment being spaced from the first segment along a length of the inner member, the first layer and the second layer being free of attachment between the first segment and the second segment;
the inner member further comprising at least two wires disposed along the length of the inner member between the first layer and the second layer, wherein the at least two wires include a first coil wound about the longitudinal axis in a first direction and a second coil wound about the longitudinal axis in an opposite direction, the first coil having a first diameter and the second coil having a second diameter, wherein at least one of the first diameter and the second diameter changes when a torque is applied; andan outer member disposed about the inner member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 25)
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11. A catheter shaft comprising:
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a multilayered tubular member having an axis and a first layer and a second layer, the first layer and the second layer being attached together at a first segment and a second segment, the second segment being spaced from the first segment along a length of the tubular member, the first layer and the second layer being free of attachment between the first segment and the second segment; the tubular member further comprising at least a first coil and a second coil disposed along the length of the tubular member between the first layer and the second layer, the first coil having a first diameter and the second coil having a second diameter, wherein at least one of the first diameter and the second diameter changes when a torque is applied. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification