Multi-lumen catheter with protected tip
First Claim
1. A multilumen catheter assembly comprising:
- an elongated body having a proximal end and a distal end;
a first lumen having a sidewall extending between the proximal end and the distal end and a first distal opening disposed at the distal end; and
a second lumen connected to the sidewall and extending between the proximal end and a second distal end, distal of the first distal end, wherein the second lumen includes a second distal opening disposed distally of the first distal opening; and
a protector adjoining the second lumen distally of the first distal opening, the protector adapted to extend from the distal end outwardly and proximally to a free proximal edge that engages the vessel wall under spring bias and radially about the catheter proximate the first distal opening, thereby centering the catheter and facilitating prevention of occlusion of the first distal opening by the vessel wall.
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Accused Products
Abstract
A multilumen catheter assembly (100) including a catheter (102) having an elongated body (108) having a proximal end (104) and a distal end (106) and a first lumen (122) with a first distal opening (126) disposed at its distal end, and a second lumen (124) connected to the first lumen but extending distally therebeyond to a second distal opening (130). A protector (120) is adjoined to the second lumen (124) distally of the first distal opening (126) and extends radially and proximally to a free proximal edge (134) to engage the vessel walls radially about the first distal opening to center the catheter (102) within the vessel to prevent occlusion of the first distal opening (126). A plurality of openings (136) extend through the protector (120) to permit blood flow therethrough.
23 Citations
12 Claims
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1. A multilumen catheter assembly comprising:
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an elongated body having a proximal end and a distal end; a first lumen having a sidewall extending between the proximal end and the distal end and a first distal opening disposed at the distal end; and a second lumen connected to the sidewall and extending between the proximal end and a second distal end, distal of the first distal end, wherein the second lumen includes a second distal opening disposed distally of the first distal opening; and a protector adjoining the second lumen distally of the first distal opening, the protector adapted to extend from the distal end outwardly and proximally to a free proximal edge that engages the vessel wall under spring bias and radially about the catheter proximate the first distal opening, thereby centering the catheter and facilitating prevention of occlusion of the first distal opening by the vessel wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification