Method and apparatus for temporarily anchoring sensory nerve stimulator (SNS) leads to the skin of a patient during SNS trialing and/or for temporarily anchoring other elongated flexible elements to the skin of a patient
A novel method and apparatus for securing an object to a patient. In one form of the invention, the object comprises a sensory nerve stimulator (SNS) lead. And in one form of the invention, the object is secured to a patient using a capstan effect.
1. Apparatus for securing an elongated flexible element to a patient, the apparatus comprising:
a base comprising an outer face, an inner face, a first end and a second end, wherein the base comprises a tapered notch at its first end for receiving the elongated flexible element;
a plurality of cylindrical pillars upstanding from the outer face of the base, wherein each of the plurality of cylindrical pillars comprises a compressible foam material, and further wherein the plurality of cylindrical pillars are configured so that the elongated flexible element can be passed around the plurality of cylindrical pillars;
a lead-in upstanding from the outer face of the base at the second end of the base, wherein the lead in comprises a slot for receiving the elongated flexible element; and
a cover comprising an outer face and an inner face, wherein the cover is hingedly mounted to the base;
wherein the cover is configured to completely conceal the elongated flexible element from the tapered notch at the first end of the base to the slot at the second end of the base.
2. Apparatus according to claim 1 wherein the elongated flexible element comprises an electrical lead.
3. Apparatus according to claim 1 wherein the elongated flexible element comprises a tube.
4. Apparatus according to claim 1 wherein the elongated flexible element comprises a suture.
5. Apparatus according to claim 1 further comprising an inner face release liner releasably covering the adhesive on the inner face of the base.
6. Apparatus according to claim 1 wherein the adhesive applied to the inner face of the base is in the form of an adhesive sheet comprising an outer face and an inner face, and further wherein the outer face of the adhesive sheet is secured to the inner face of the base.
7. Apparatus according to claim 1 further comprising an adhesive applied to the outer face of the base.
8. Apparatus according to claim 7 further comprising an outer face release liner releaseably covering the adhesive on the outer face of the base.
9. Apparatus according to claim 1 wherein the tapered notch is aligned with the centerline of the plurality of cylindrical pillars.
10. Apparatus according to claim 1 wherein the tapered notch is not aligned with the centerline of the plurality of cylindrical pillars.
11. Apparatus according to claim 1 wherein the lead-in comprises a compressible material.
12. Apparatus according to claim 1 wherein the plurality of cylindrical pillars has a height greater than the diameter of the elongated flexible element.
13. Apparatus according to claim 1 wherein the plurality of cylindrical pillars are spaced from one another by a distance sufficient to allow the elongated flexible element to be woven around the plurality of pillars in a serpentine fashion.
14. Apparatus according to claim 1 wherein the plurality of cylindrical pillars are aligned with one another.
15. Apparatus according to claim 1 wherein the plurality of cylindrical pillars are laterally offset from one another.
16. Apparatus according to claim 1 wherein the cover further comprises a plurality of openings, and further wherein the plurality of openings are configured to receive the plurality of cylindrical pillars when the inner face of the cover is positioned against the outer face of the base.
17. Apparatus according to claim 1 further comprising an adhesive applied to the inner face of the cover.
18. Apparatus according to claim 17 further comprising an inner face release liner releasably covering the adhesive on the inner face of the cover.
19. Apparatus according to claim 1 wherein the cover is hingedly mounted to the base by at least one depression.
20. Apparatus according to claim 1 wherein the plurality of cylindrical pillars further comprises a cap, and further wherein the cap comprises a non-compressible material.
21. Apparatus according to claim 1 wherein the lead-in further comprises a cap, and further wherein the cap comprises a non-compressible material.
22. A method for securing an elongated flexible element to a patient, the method comprising:
providing apparatus comprising:
a base comprising an outer face, an inner face, a first end and a second end, wherein the base comprises a tapered notch at its first end for receiving the elongated flexible element;
a plurality of cylindrical pillars upstanding from the outer face of the base, wherein each of the plurality of cylindrical pillars comprises a compressible foam material, and further wherein the plurality of cylindrical pillars are configured so that the elongated flexible element can be passed around the plurality of cylindrical pillars;
a lead-in upstanding from the outer face of the base at the second end of the base, wherein the lead in comprises a slot for receiving the elongated flexible element; and
a cover comprising an outer face and an inner face, wherein the cover is hingedly mounted to the base;
wherein the cover is configured to completely conceal the elongated flexible element from the tapered notch at the first end of the base to the slot at the second end of the base;
securing the inner face of the base to the skin of the patient; and
securing the elongated flexible element to the apparatus, wherein the step of securing the elongated flexible element to the apparatus comprises positioning the elongated flexible element around the plurality of cylindrical pillars and against the outer face of the base.
23. A method according to claim 22 wherein the elongated flexible element is positioned around the plurality of cylindrical pillars so as to create a capstan effect.
24. A method according to claim 22 wherein the elongated flexible element is positioned around the plurality of cylindrical pillars under tension so as to radially compress the plurality of cylindrical pillars.
25. A method according to claim 22 wherein the step of securing the elongated flexible element to the apparatus comprises weaving the elongated flexible element around the plurality of cylindrical pillars in a serpentine fashion.
26. A method according to claim 22 wherein the cover comprises a plurality of openings, wherein the plurality of openings are configured to receive the plurality of cylindrical pillars when the inner face of the cover is positioned against the outer face of the base.