Catheter with controlled lumen recovery
First Claim
1. An implantable medical device, comprising:
- a body including a lumen extending therethrough; and
at least one activatable element disposed within the body, a dimension of each of the at least one activatable elements changing in response to a predetermined stimulation between an activated state and an inactive state to change a shape of the body to control a degree of opening the lumen, wherein the at least one activatable element is disposed in a portion of the body at which a cross-sectional thickness taken perpendicular to a longitudinal axis of the body is a minimum.
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Accused Products
Abstract
An implantable medical device, comprising a body including a lumen extending therethrough at least one activatable element disposed within the body, a dimension of each of the at least one activatable elements changing in response to a predetermined stimulation between an activated state and an inactivate state to change a shape of the body to control a degree of opening of the lumen and at least one actuation element, each of the at least one actuation elements being configured to selectively supply the predetermined stimulation to a corresponding one of the at least one activatable elements to move the corresponding one of the at least one activatable elements between the activated and inactive states.
27 Citations
27 Claims
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1. An implantable medical device, comprising:
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a body including a lumen extending therethrough; and at least one activatable element disposed within the body, a dimension of each of the at least one activatable elements changing in response to a predetermined stimulation between an activated state and an inactive state to change a shape of the body to control a degree of opening the lumen, wherein the at least one activatable element is disposed in a portion of the body at which a cross-sectional thickness taken perpendicular to a longitudinal axis of the body is a minimum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A catheter comprising:
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an elongated body defining a lumen; a polymeric material forming a wall of the elongated body; and a plurality of activatable material elements a size of which, when subjected to a predetermined stimulation, changes from an inactive state to an activated state, the activatable material elements being coupled to the wall in a pattern selected so that, when placed in the activated state, the activatable material elements draw the wall into a predetermined shape to control an opening of the lumen, wherein the activatable elements are disposed in a portion of the body at which a cross-sectional thickness taken perpendicular to a longitudinal axis of the elongated body is a minimum. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification