Drainage or infusion catheter and method of use
A drainage or infusion catheter and methods of use are disclosed. In one embodiment, the catheter includes a tube body having a proximal end and a distal end, and a plurality of ports arranged along the tube body from the distal end to the proximal end. The distal end of the tube body is configured to deform around itself into a substantially spiral shape so as to cover at least one of the plurality of ports located near the proximal end of the tube body. In another embodiment, a flap is configured to erupt from apertures arranged in the tube and extend outwardly around the tube body so as to cover at least one of the plurality of ports located near the proximal end of the tube body.
1. A method for inserting a drainage or infusion catheter into a cavity of a subject comprising:
providing a catheter comprising:
a tube body defining a passageway therethrough, the tube body having a proximal end and a distal end, and a non-deformed central region extending between the proximal end and the distal end; and
a plurality of ports arranged along the tube body from the distal end to the non-deformed central region, the plurality of ports extending into the non-deformed central region;
wherein the distal end of the tube body is configured to be deformed around the non-deformed central region in a 3D shape so as to surround at least one of the plurality of ports located in the non-deformed central region of the tube body;
inserting an introducer within the tube body of the catheter such that the 3D shape at the distal end is straightened by the introducer;
inserting the catheter into the cavity; and
removing the introducer from the catheter in a removal direction such that when the introducer is removed, the distal end of the tube body deforms backward at least in the removal direction with respect to the non-deformed central region and re-forms into the 3D shape and surrounds at least one of the plurality of ports located in the non-deformed central region of the tube body.
2. The method of claim 1 , further comprising attaching the catheter to an external drainage or infusion apparatus, or to a shunt-valve system.
3. The method of claim 1 , in which the cavity comprises a ventricle and the drainage catheter drains cerebral spinal fluid.
4. The method of claim 1 , in which the cavity comprises an abdominal cavity, a gallbladder, or a pleural space.
5. The method of claim 1 , in which the cavity comprises a heart chamber or a pericardial space.
6. The method of claim 1 , in which the cavity comprises a blood vessel for the drainage or circulation of blood or infusion of blood or an agent.
7. The method of claim 6 , in which the agent is selected from the group consisting of drugs, chemotherapeutic agents, biological agents, blood, saline, and dialysis fluid.
8. The method of claim 1 , wherein the 3D shape comprises one of a loop, a “j”, a knot, a spiral, a flap, or a coil, or combinations thereof.
9. The method of claim 1 , wherein the catheter comprises a shape memory material.
10. A drainage or infusion catheter comprising:
a tube body defining a passageway therethrough, the tube body having a proximal end and a distal end, and a non-deformed central region extending between the proximal end and the distal end; and
a plurality of ports arranged along the tube body from the distal end to the non-deformed central region, the plurality of ports extending into the non-deformed central region;
wherein the distal end of the tube body is configured to deform backward at least in a direction toward and around the non-deformed central region into a substantially spiral shape so as to surround at least one of the plurality of ports located in the non-deformed central region of the tube body; and
wherein during insertion of the drainage or infusion catheter, the substantially spiral shape of the distal end of the tube body is configured to straighten into a substantially linear shape.
11. The drainage or infusion catheter according to claim 10 , further comprising a flap being configured to extend outwardly around the tube body.
12. The drainage or infusion catheter according to claim 10 , wherein the tube body has a length of about 5 cm to about 100 cm.
13. The drainage or infusion catheter according to claim 10 , wherein the tube body has an outer diameter of about 1 mm to about 80 mm.
14. The drainage or infusion catheter according to claim 10 , wherein the plurality of ports has a width of about 0.1 mm to about 2 mm and a length of about 1.5 mm to about 12 mm.
15. The drainage or infusion catheter according to claim 10 , wherein the plurality of ports comprises at least forty ports.
16. The drainage or infusion catheter according to claim 10 , wherein the catheter comprises a shape memory material.
17. The drainage or infusion catheter according to claim 16 , wherein the shape memory material comprises one of a shape memory alloy and a shape memory polymer.
18. The drainage or infusion catheter of claim 17 , in which the shape memory polymer is selected from the group consisting of poly(c-caprolactone) dimethacrylate, n-butyl acrylate, star-shaped oligoesters of rac-dilactide and diglyceride, multiblock copolyesters from poly(c-caprolactone) and PEG, oligo (c-caprolactone) diols, oligo (p-dioxanone) diols, diisocyanate, multiblock copolymers containing poly(L-lactide), poly [glycolide-co-(c-caprolactone)]-segments, and combinations thereof.
19. The drainage or infusion catheter of claim 17 , in which the shape memory alloy is selected from the group consisting of NiTi, CuZn, AuCd, CuSn, TiPd, NiAl, InTi, NiTiCu and CuZnAl.
20. A kit for treating a subject comprising a drainage or infusion catheter according to claim 10 , an introducer, and instructions for use.