Intraluminally placeable textile catheter, drain and stent
View Patent ↗An intraluminally placeable tubular device includes an elongate hollow tubular member having a luminal surface and an exterior surface defining a wall portion therebetween. The hollow tubular member has an open proximal end and an opposed distal end. The wall portion has sufficient self-supporting rigidity to permit the device to be advanced through a body lumen during intraluminal placement. The tubular member includes yarns interconnected in a pattern defining opposed interior and exterior textile surfaces. At least one of the textile surfaces is the body fluid-contacting luminal surface or the body lumen-contacting exterior surface. A textile infusion and/or a textile aspiration valve is also provided. A percutaneously or orificially placeable catheter with such textile valves is provided.
1. 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.
2. The catheter of claim 1 , wherein the open and closed states are responsive to application of a pressure within the hollow tubular member.
3. The catheter of claim 1 , wherein the yarns in the fluid tight textile pattern are braided at a longitudinal braid angle of greater than 90 degrees.
4. The catheter of claim 1 , wherein said tubular wall portion is a polymeric tubular wall portion.
5. The catheter of claim 1 , wherein the yarns are biocompatible synthetic yarns.
6. The catheter of claim 5 wherein the biocompatible synthetic yarns are selected from the group consisting of polyesters, polypropylenes, polyethylenes, polyurethanes, polyamides, polytetrafluoroethylenes, metals and ceramics.
7. The catheter of claim 6 , wherein the metal is from the group consisting of stainless steel, platinum, gold, titanium, tantalum and Ni—Co—Cr-based alloy.
8. The catheter of claim 5 , wherein the biocompatible synthetic yarns are polyethylene terephthalate yarns.
9. The catheter of claim 1 , wherein the yarns are coated with a bio-absorbable composition or a sealant composition.
10. The catheter of claim 1 , wherein the yarns releasably contain a drug or a bio-therapeutic agent.
11. The catheter of claim 10 , wherein the drug or the bio-therapeutic agent is selected from the group consisting of thrombo-resistant agents antibiotic agents, anti-tumor agents, cell cycle regulating agents, their homologs, derivatives, fragments, pharmaceutical salts, and combinations thereof.
12. 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, and
wherein the textile valve is an aspiration valve where upon application of a negative pressure within the tubular member the longitudinal length of the textile valve decreases resulting in the second longitudinal braid angle being greater than the first longitudinal braid angle.
13. The catheter of claim 12 , wherein the yarns in the fluid tight textile pattern are braided at a longitudinal braid angle of less than 50 degrees.
14. The catheter of claim 12 , wherein the aspiration valve remains in the closed state upon application of a where upon application of a positive within the tubular member.
15. The catheter of claim 12 , wherein the open and closed states are responsive to application of a pressure within the hollow tubular member.
16. The catheter of claim 12 , wherein said tubular wall portion is a polymeric tubular wall portion.
17. The catheter of claim 12 , wherein the yarns are biocompatible synthetic yarns.
18. The catheter of claim 17 wherein the biocompatible synthetic yarns are selected from the group consisting of polyesters, polypropylenes, polyethylenes, polyurethanes, polyamides, polytetrafluoroethylenes, metals and ceramics.
19. The catheter of claim 18 , wherein the metal is from the group consisting of stainless steel, platinum, gold, titanium, tantalum and Ni—Co—Cr-based alloy.
20. The catheter of claim 17 , wherein the biocompatible synthetic yarns are polyethylene terephthalate yarns.
21. The catheter of claim 12 , wherein the yarns are coated with a bio-absorbable composition or a sealant composition.
22. The catheter of claim 12 , wherein the yarns releasably contain a drug or a bio-therapeutic agent.
23. The catheter of claim 22 , wherein the drug or the bio-therapeutic agent is selected from the group consisting of thrombo-resistant agents, antibiotic agents, anti-tumor agents, cell cycle regulating agents, their homologs, derivatives, fragments, pharmaceutical salts, and combinations thereof.