Disc shunt delivery with stepped needle
A solid stepped needle delivers a disc shunt bridging between muscle and a degenerated disc, drawing blood plasma from muscle into the degenerated disc to alleviate back pain and regenerate the disc. The device further includes pull lines attached to the ends of the disc shunt for withdrawing and repositioning the stepped needle during shunt delivery.
1. A device for treatment of an intervertebral disc, the device comprising:
a solid needle comprising a distal end, a protruded step and a proximal end, wherein said protruded step is located between said distal end and said proximal end,
wherein said proximal end has an outside wall, and wherein said protruded step comprises at least one barb,
a disc shunt comprising a first portion, a second portion and a middle portion, wherein said middle portion approximates said protruded step, and engages said at least one barb,
wherein said distal end of said solid needle erects from said middle portion, and said first and second portions of said disc shunt approximate said outside wall,
wherein said distal end, protruded step and said middle portion are sized and configured to enter an intervertebral disc,
and wherein said first and second portions of said disc shunt are located outside the intervertebral disc, and are sized and configured to house within a muscle, thereby drawing blood from the muscle into the intervertebral disc to alleviate back pain.
2. The device of claim 1 , wherein said protruded step comprises at least one indentation.
3. The device of claim 1 , wherein said distal end is sharp.
4. The device of claim 1 , wherein said solid needle is curved.
5. The device of claim 1 , wherein said disc shunt connects to at least one linked shunt adapted to partially house in the intervertebral disc.
6. The device of claim 1 , wherein said first portion connects to a pull line adapted to extend outside the skin.
7. The device of claim 1 , wherein said second portion connects to a pull line adapted to extend outside the skin.
8. The device of claim 1 , wherein said middle portion is thinner than said first or said second portions of said disc shunt.
9. The device of claim 1 , wherein said disc shunt is made with braided filaments.
10. The device of claim 1 , wherein said disc shunt is made with knitted filaments.
11. The device of claim 1 , wherein said disc shunt is made with woven filaments.
12. The device of claim 1 , wherein said disc shunt is made with filaments,
and wherein at least some of said filaments are oriented length-wise parallel with said disc shunt.
13. The device of claim 1 , wherein said disc shunt is made with micro-tubes.
14. The device of claim 13 , wherein said micro-tubes are bundled by a wrapper.
15. The device of claim 1 , wherein said disc shunt is made with sponge.
16. The device of claim 1 , wherein said disc shunt has a water contact angle between 0 and 60 degrees.
17. The device of claim 1 , wherein said disc shunt has pore sizes between 1 nano-meter and 200 micro-meters.
18. The device of claim 1 , wherein said disc shunt has a drug coating.
19. A method for implanting a disc shunt to treat an intervertebral disc, the method comprising the steps of:
(a) puncturing skin and muscle into an intervertebral disc with a solid needle, wherein the solid needle comprises a distal end, a protruded step and a proximal end, wherein said protruded step is located between said distal end and said proximal end, and wherein said protruded step comprises at least one barb engaging a disc shunt,
(b) bridging said disc shunt between the muscle and the intervertebral disc, and
(c) withdrawing said solid needle from the skin, and leaving said disc shunt bridging between the muscle and the intervertebral disc, thereby transporting blood plasma from the muscle into the intervertebral disc through said disc shunt.
20. The method of claim 19 , further comprising a step:
(d) twisting said solid needle.
21. The device of claim 1 , wherein said middle portion includes a fortified ring, which is sized and configured to sit on the protruded step of the solid needle.