Infusion catheter system with telescoping cannula
First Claim
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1. An infusion catheter system, comprising:
- an elongated catheter body, said catheter body comprising a first distal end, a first proximal end, and at least a first lumen;
said first lumen defined by an outer sidewall extending between said distal end and said proximal end;
said sidewall having a plurality of side ports therethrough, said side ports including at least a first side port and a second side port disposed longitudinally along said catheter body;
an elongated cannula body disposed within said catheter body and comprising a second distal end, a second proximal end, and a second lumen, said second lumen being defined by a second sidewall extending between said second distal end and second proximal end, and an outlet opening disposed through said cannula; and
wherein said cannula is movable along a longitudinal axis from a first position, wherein said outlet opening is primarily in fluid communication with said first side port, and a second position, wherein said outlet opening is primarily in fluid communication with said second side port.
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Abstract
An infusion catheter system includes an elongated catheter body and an inner elongated cannula body. The catheter body has a sidewall perforated with a plurality of side ports and the cannula body may have an outlet opening in a distal end. The side ports of the catheter body are selectively in fluid communication with the outlet opening of the cannula by moving the cannula between a first and second position within the catheter body.
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Citations
19 Claims
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1. An infusion catheter system, comprising:
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an elongated catheter body, said catheter body comprising a first distal end, a first proximal end, and at least a first lumen;
said first lumen defined by an outer sidewall extending between said distal end and said proximal end;
said sidewall having a plurality of side ports therethrough, said side ports including at least a first side port and a second side port disposed longitudinally along said catheter body;
an elongated cannula body disposed within said catheter body and comprising a second distal end, a second proximal end, and a second lumen, said second lumen being defined by a second sidewall extending between said second distal end and second proximal end, and an outlet opening disposed through said cannula; and
wherein said cannula is movable along a longitudinal axis from a first position, wherein said outlet opening is primarily in fluid communication with said first side port, and a second position, wherein said outlet opening is primarily in fluid communication with said second side port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of sclerosing a vein comprising the steps of:
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inserting an infusion catheter system into a vein, said catheter system comprising;
an elongated catheter body, said catheter comprising a first distal end, a first proximal end, and at least a first lumen;
said first lumen defined by a first outer sidewall extending between said first distal end and said first proximal end;
said first outer sidewall having a plurality of side ports therethrough, said side ports including at least a first side port and a second side port disposed longitudinally along said catheter body;
an elongated cannula body disposed within said catheter body and comprising a second distal end, a second proximal end, and a second lumen, said second lumen being defined by a second sidewall extending between said second distal end and second proximal end, and an outlet opening disposed through said second distal end; and
wherein said cannula is movable along a longitudinal axis from at least a first position, wherein said outlet opening is primarily in fluid communication with said first side port, and a second position, wherein said outlet opening is primarily in fluid communication with said second side port;
injecting a sclerosant into said cannula body, when said cannula body is in said first position, said sclerosant thereby passing through said first side port and sclerosing a first portion of said vein;
moving said cannula body from said first position to said second position;
injecting said sclerosant into said cannula body when said cannula body is in said second position, said sclerosant thereby passing through said second side port and sclerosing a second portion of said vein. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification