Infusion treatment agents, catheters, filter devices, and occlusion devices, and use thereof
First Claim
1. A method comprising:
- winding a plurality of layers of ePTFE onto a large mandrel;
bonding a seam between two of a plurality of second ePTFE windings;
fusing together the layers of ePTFE;
heating the layers of ePTFE at a temperature of approximately 380 degrees celsius for a duration of between 20 minutes and 30 minutes;
stretching the fused layers of ePTFE onto a small mandrel, wherein stretching comprises;
putting the small mandrel within an inner diameter of fused ePTFE layers;
stretching apart a distal end and a proximate end of the ePTFE sufficiently to stretch the inner diameter of fused ePTFE layers onto an outer diameter of the small mandrel;
compacting the stretched fused layers of ePTFE axially;
one of wrapping an outer diameter of the stretched fused layers of ePTFE with a polytetrafluoroethylene, and constraining the outer diameter of the stretched fused layers of ePTFE within a steel tube before compacting, and then sufficiently compacting axially inwards a distal end and a proximate end of the stretched fused layers of ePTFE, such that during inflation of the lined ePTFE balloon, the compacted stretched fused layers of ePTFE may not expand axiallybonding a balloon liner to the compacted stretched fused layers of ePTFE to form a lined ePTFE balloon.
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Accused Products
Abstract
Embodiments include an infusion-occlusion system having a delivery catheter, a guide catheter adapted to receive the delivery catheter, and a guidewire with an occlusion device adapted to be received within the guide catheter. The guide catheter of the catheter kit may be provided with an occlusion device at the distal end of the guide catheter. The delivery catheter may have an accessory lumen, coaxial or co-linear lumen, a supporting mandrel, or an occlusion device at its distal end. Moreover, according to some embodiments, occlusion devices may be a single material or a composite balloon having an inner liner and an outer layer of different materials, a high compliance low pressure balloon, or a filter device that restricts particles from passing through but does not restrict fluid, such as blood. An inflation device with a large volume and low volume syringe can be used to inflate the balloon.
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Citations
9 Claims
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1. A method comprising:
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winding a plurality of layers of ePTFE onto a large mandrel; bonding a seam between two of a plurality of second ePTFE windings; fusing together the layers of ePTFE; heating the layers of ePTFE at a temperature of approximately 380 degrees celsius for a duration of between 20 minutes and 30 minutes; stretching the fused layers of ePTFE onto a small mandrel, wherein stretching comprises; putting the small mandrel within an inner diameter of fused ePTFE layers; stretching apart a distal end and a proximate end of the ePTFE sufficiently to stretch the inner diameter of fused ePTFE layers onto an outer diameter of the small mandrel; compacting the stretched fused layers of ePTFE axially; one of wrapping an outer diameter of the stretched fused layers of ePTFE with a polytetrafluoroethylene, and constraining the outer diameter of the stretched fused layers of ePTFE within a steel tube before compacting, and then sufficiently compacting axially inwards a distal end and a proximate end of the stretched fused layers of ePTFE, such that during inflation of the lined ePTFE balloon, the compacted stretched fused layers of ePTFE may not expand axially bonding a balloon liner to the compacted stretched fused layers of ePTFE to form a lined ePTFE balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification