INFUSION TREATMENT AGENTS, CATHETERS, FILTER DEVICES, AND OCCLUSION DEVICES, AND USE THEREOF
First Claim
1. An apparatus comprising a cannula having a dimension suitable for percutaneous advancement through a blood vessel, the cannula comprising a proximal end and a distal end;
- and a filter device having a proximal portion axially coupled to an exterior surface of the cannula at or adjacent the distal end of the cannula, and a distal portion having a first diameter under a first set of conditions and a different second diameter that under a second set of conditions is at least equivalent to an inner diameter of a blood vessel at a treatment region.
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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.
125 Citations
5 Claims
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1. An apparatus comprising
a cannula having a dimension suitable for percutaneous advancement through a blood vessel, the cannula comprising a proximal end and a distal end; - and
a filter device having a proximal portion axially coupled to an exterior surface of the cannula at or adjacent the distal end of the cannula, and a distal portion having a first diameter under a first set of conditions and a different second diameter that under a second set of conditions is at least equivalent to an inner diameter of a blood vessel at a treatment region. - View Dependent Claims (2, 3, 4, 5)
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Specification