Multi-Lumen steerable catheter
First Claim
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1. An elongated multi-lumen steerable catheter comprising:
- a catheter body extending between a catheter body proximal end and a catheter body distal end and having a proximal segment, a bendable intermediate segment and a distal segment, the catheter body further comprising;
an outer sheath extending between the catheter body proximal end and the catheter body distal end;
a deflection lumen extending within the outer sheath from a deflection lumen proximal end opening to the catheter body distal end; and
a delivery lumen extending within the outer sheath between a delivery lumen proximal end opening and a delivery lumen distal end opening at the catheter body distal end, the delivery lumen defined by a delivery lumen liner formed of a no yield elastomer extending through the proximal segment, the bendable intermediate segment, and the distal segment of the catheter body;
a hub mounted to the catheter body proximal end; and
a deflection mechanism introduced within the deflection lumen selectively operable at the hub inducing a bend in the intermediate segment.
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Abstract
Elongated medical devices are disclosed adapted to be inserted through an access pathway into a body vessel, organ or cavity to locate a therapeutic or diagnostic distal segment of the elongated medical device into alignment with an anatomic feature of interest. Multi-lumen steerable catheters having a deflection lumen liner and a delivery lumen liner are adapted to be deflected by a deflection mechanism within or advanced through the deflection lumen liner to enable advancement of the catheter distal end through a tortuous pathway. At least one lumen liner is formed of a no yield elastomer.
142 Citations
19 Claims
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1. An elongated multi-lumen steerable catheter comprising:
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a catheter body extending between a catheter body proximal end and a catheter body distal end and having a proximal segment, a bendable intermediate segment and a distal segment, the catheter body further comprising;
an outer sheath extending between the catheter body proximal end and the catheter body distal end;
a deflection lumen extending within the outer sheath from a deflection lumen proximal end opening to the catheter body distal end; and
a delivery lumen extending within the outer sheath between a delivery lumen proximal end opening and a delivery lumen distal end opening at the catheter body distal end, the delivery lumen defined by a delivery lumen liner formed of a no yield elastomer extending through the proximal segment, the bendable intermediate segment, and the distal segment of the catheter body;
a hub mounted to the catheter body proximal end; and
a deflection mechanism introduced within the deflection lumen selectively operable at the hub inducing a bend in the intermediate segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An elongated catheter comprising:
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a catheter body extending between a catheter body proximal end and a catheter body distal end, the catheter body comprises a stiff proximal segment, a flexible intermediate segment and a soft distal segment, the catheter body further comprising;
an outer sheath extending between the catheter body proximal end and the catheter body distal end; and
a catheter lumen liner extending within the outer sheath from a catheter lumen proximal end opening to a catheter lumen distal end opening at the catheter body distal end, the catheter lumen liner formed of a no yield elastomer, and a hub mounted to the catheter body proximal end - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification