Medical device made from self-stiffening composite
First Claim
1. An expandable medical device having a delivery configuration and an expanded configuration, comprising:
- a tubular body formed from the base material;
a polymerizer; and
a corresponding activator for the polymerizer, wherein the polymerizer and activator are dispersed in the base material, and wherein the medical device has an initial delivery configuration in which the polymerizer and activator are separated from each other and an expanded configuration in which the polymerizer and activator are brought into contact with each other.
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Accused Products
Abstract
Medical devices are made from a self-stiffening composite including a base material, a polymerizer and a corresponding activator for the polymerizer. The medical devices have an initial configuration in which the polymerizer and activator are separated from each other and an activated configuration in which the polymerizer and activator are brought into contact with each other. Polymerization is triggered when the polymerizer and activator are contacted together, forming a polymer that stiffens the medical device. The medical device may thus be flexible in the initial configuration so it can be easily advanced through tortuous passageways during delivery to a body lumen and further have sufficient radial strength in the activated configuration to hold open the body lumen after implantation.
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Citations
26 Claims
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1. An expandable medical device having a delivery configuration and an expanded configuration, comprising:
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a tubular body formed from the base material; a polymerizer; and a corresponding activator for the polymerizer, wherein the polymerizer and activator are dispersed in the base material, and wherein the medical device has an initial delivery configuration in which the polymerizer and activator are separated from each other and an expanded configuration in which the polymerizer and activator are brought into contact with each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An expandable implantable intraluminal device, comprising:
a tubular body formed of a base material, a polymerizer contained within microspheres and a corresponding activator for the polymerizer, wherein the microspheres and activator are dispersed in the base material, the tubular body having a first delivery diameter in which the polymerizer and activator are separated from each other and a second expanded diameter in which the polymerizer and activator are brought into contact with each other. - View Dependent Claims (12)
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13. A method for manufacturing an expandable medical device, comprising:
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providing a tubular body formed from the base material; dispersing a polymerizer and a corresponding activator for the polymerizer into the base material without contacting the polymerizer and the activator so as to form a mixture; and forming an expandable medical device from the mixture wherein expansion causes said polymerizer and activator to contact one another. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for manufacturing a medical device, comprising:
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providing a tubular body formed from the base material; forming a tubular body from the base material; and dispersing a polymerizer and a corresponding activator for the polymerizer into the base material of the tubular body without contacting the polymerizer and the activator. - View Dependent Claims (20, 21, 22, 23)
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24. A method of delivering an implantable intraluminal device to a desired location within a patient'"'"'s vasculature, the method comprising:
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providing a delivery catheter having a distal end portion, a balloon formed on the distal end portion of the catheter, and an implantable intraluminal device disposed on the balloon and configured from a base material, a polymerizer, and a corresponding activator for the polymerizer, wherein the polymerizer and activator are dispersed in the base material; advancing the distal end portion of the catheter, the balloon and the implantable intraluminal device though the vasculature to a desired location; inflating the balloon so as to expand the implantable intraluminal device at the desired location and to contact the polymerizer with the activator; deflating the balloon; and withdrawing the catheter and the balloon from the vasculature. - View Dependent Claims (25, 26)
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Specification