Interventional catheters incorporating aspiration and/or infusion systems
First Claim
1. An interventional catheter assembly comprising:
- (a) a catheter for insertion and guidance to a target site in a body;
(b) a rotational operating head mounted in proximity to a distal end of the catheter, the operating head comprising a plurality of external cutter elements for breaking down obstructive material into particles at the target site;
(c) at least one aspiration port located proximal to the operating head and each of the plurality of external cutter elements, wherein the at least one aspiration port extends over at least 20% of a circumference of the catheter and is in communication with a first sealed lumen for withdrawing fluids and obstructive material from the target site; and
(d) a plurality of infusion ports located proximally with respect to the at least one aspiration port and communicating with an infusion lumen in the catheter.
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Accused Products
Abstract
An interventional catheter assembly comprising a catheter for insertion and guidance to a target site in a body lumen or a cavity and an operating head mounted in proximity to a distal end of the catheter and comprising a system for removing obstructive material from the target site is provided. In certain embodiments, the catheter assembly includes at least one aspiration port located proximal to the operating head that communicates with a first sealed lumen for withdrawing fluids and obstructive material from the target site, together with at least one liquid infusion port penetrating the catheter and located proximal to the at least one aspiration port that communicates with a second sealed lumen for supplying fluid to a location in proximity to the target site.
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Citations
22 Claims
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1. An interventional catheter assembly comprising:
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(a) a catheter for insertion and guidance to a target site in a body; (b) a rotational operating head mounted in proximity to a distal end of the catheter, the operating head comprising a plurality of external cutter elements for breaking down obstructive material into particles at the target site; (c) at least one aspiration port located proximal to the operating head and each of the plurality of external cutter elements, wherein the at least one aspiration port extends over at least 20% of a circumference of the catheter and is in communication with a first sealed lumen for withdrawing fluids and obstructive material from the target site; and (d) a plurality of infusion ports located proximally with respect to the at least one aspiration port and communicating with an infusion lumen in the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification