Patent ID: 6929626

Claim:
A catheter comprising: an elongate hollow tubular member having a luminal surface and an exterior surface defining a wall portion therebetween and having an open proximal end and an opposed distal end, the wall portion having sufficient self-supporting rigidity to permit the catheter to be advanced through a body lumen; a portion of the wall having a textile valve comprising interlocking yarns which engagingly abut one another to form a fluid tight textile pattern defining a closed quiescent state of the valve and which disengagingly separate to form open areas therebetween to form a non-fluid tight textile pattern defining an open state of the valve wherein the fluid tight textile pattern is braided textile pattern having the interlocking yarns at a first longitudinal braid angle and the non-fluid tight textile pattern is braided textile pattern having the interlocking yarns at a second longitudinal braid angle, the second longitudinal braid angle being different from the first longitudinal braid angle, wherein the textile valve is an infusion valve where upon application of a positive pressure within the tubular member the longitudinal length of the textile valve increases resulting in the second longitudinal braid angle being less than the first longitudinal braid angle, and wherein the infusion valve remains in the closed state upon application of a negative pressure within the tubular member.