Device with tensioners
First Claim
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1. A method of deploying a medical device in a body vessel having a vessel wall, the method comprising:
- disposing the medical device within the body vessel, the medical device having a longitudinal axis and comprising;
an outer layer comprising a first material and a plurality of outer cells arranged in outer circumferential rows, each outer cell having an outer perimeter comprising a first outer cell edge attached to a second outer cell edge at a distal outer cell end, defining a distal outer angle, and a third outer cell edge attached to a fourth outer cell edge at a proximal outer cell end, defining a proximal outer angle, the distal outer angle being distal the proximal outer angle along the longitudinal axis;
an inner layer comprising a second material being elastomeric and a plurality of inner cells arranged in inner circumferential rows, each inner cell having an inner perimeter comprising a first inner cell edge attached to a second inner cell edge at a distal inner cell end, defining a distal inner angle, and a third inner cell edge attached to a fourth inner cell edge at a proximal inner cell end, defining a proximal inner angle, the distal inner angle being distal the proximal inner angle along the longitudinal axis, wherein at least one outer perimeter is attached to at least one inner perimeter, the outer and inner layers defining a tubular body having a proximal end extending to a distal end and a lumen formed therethrough; and
a plurality of tensioners having an extended length and a contracted length and comprising the second material, each inner cell having one tensioner being attached to the proximal inner cell end and extending distally to the distal inner cell end to apply a contraction force on the inner cell;
lengthening the outer layer by a lengthening force; and
countering the lengthening force by the contraction force to maintain a radial force on the vessel wall.
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Abstract
This disclosure provides for a medical device to be implanted in the vasculature and a method for treatment in the vasculature. The device has an outer layer of a first material and an inner layer of a second material attached to the outer layer. The inner layer further has a plurality of elastomeric tensioners. If the device experiences relaxation, resulting in a decreased radial force against the vessel wall, the elastomeric tensioners may provide a contraction force to the inner layer and the outer layer, resulting in a maintained radial force on the vessel wall.
26 Citations
11 Claims
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1. A method of deploying a medical device in a body vessel having a vessel wall, the method comprising:
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disposing the medical device within the body vessel, the medical device having a longitudinal axis and comprising; an outer layer comprising a first material and a plurality of outer cells arranged in outer circumferential rows, each outer cell having an outer perimeter comprising a first outer cell edge attached to a second outer cell edge at a distal outer cell end, defining a distal outer angle, and a third outer cell edge attached to a fourth outer cell edge at a proximal outer cell end, defining a proximal outer angle, the distal outer angle being distal the proximal outer angle along the longitudinal axis; an inner layer comprising a second material being elastomeric and a plurality of inner cells arranged in inner circumferential rows, each inner cell having an inner perimeter comprising a first inner cell edge attached to a second inner cell edge at a distal inner cell end, defining a distal inner angle, and a third inner cell edge attached to a fourth inner cell edge at a proximal inner cell end, defining a proximal inner angle, the distal inner angle being distal the proximal inner angle along the longitudinal axis, wherein at least one outer perimeter is attached to at least one inner perimeter, the outer and inner layers defining a tubular body having a proximal end extending to a distal end and a lumen formed therethrough; and a plurality of tensioners having an extended length and a contracted length and comprising the second material, each inner cell having one tensioner being attached to the proximal inner cell end and extending distally to the distal inner cell end to apply a contraction force on the inner cell; lengthening the outer layer by a lengthening force; and countering the lengthening force by the contraction force to maintain a radial force on the vessel wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification