Method of making a continuous loop
View Patent ↗Fixation assemblies having a button captured by a continuous (i.e., closed) loop of thread, such as ultra high molecular weight polyethylene (UHMWPE) fiber are disclosed herein. Preferred assemblies are constructed such that the intact button cannot be detached from the continuous loop without breaking or opening the loop of fiber. The closed fiber advantageously contains at least one or two stitched, or otherwise secured or reinforced, sections positioned on the loop.
1. A method of making a continuous loop fixation assembly comprising:
a) providing an open fiber having a first tail and a second tail and having a lumen;
b) inserting the first tail within the lumen of the fiber at a first position to form a loop;
c) inserting the second tail within the lumen of the fiber at a second position; and
d) reinforcing a first section of the loop that includes the first tail within the lumen in a manner that acts to retain the first tail within the lumen and
wherein the first section of the loop includes both the first and second tails within the lumen, and wherein the first and second tails are retained within the lumen by the reinforcing.
2. The method of claim 1 , further comprising:
a) providing an anchor button having an aperture;
b) prior to inserting the first tail into the lumen, threading the open fiber through the aperture of the anchor button; and
c) after threading the open fiber through the aperture, performing the step of inserting the first tail within the lumen of the fiber at a first position to form a loop.
3. The method of claim 1 , wherein the first position and the second position form a second section of the loop that is reinforced so as to retain the first and second tails within the lumen at the first point and the second point, where the tails enter the lumen.
4. The method of claim 3 , further comprising:
a) providing an anchor button having an aperture;
b) prior to inserting the first tail into the lumen, threading the open fiber through the aperture of the anchor button; and
c) after threading the open fiber through the aperture, performing the step of inserting the first tail within the lumen of the fiber at a first position to form a loop;
d) positioning the button adjacently above the first reinforced section of the loop and at the opposite end of the loop from the second reinforced section.
5. The method of claim 3 , wherein the first and second reinforced sections of the loop are stitched.
6. The method of claim 1 , wherein the first tail and the second tail are inserted into the lumen with a lacing tool, having a main body that is substantially linear and a hinged barb at an end of the main body.
7. The method of claim 6 , further comprising:
a) inserting the lacing tool into the lumen at a first entry point in the fiber;
b) pushing the lacing tool out at a first exit point in the fiber;
c) using the hinged barb to couple the first tail to the lacing tool;
d) pulling the lacing tool to insert the first tail into the lumen of the fiber;
e) inserting the lacing tool into the lumen at a second entry point in the fiber;
f) pushing the lacing tool out at a second exit point in the fiber;
g) using the hinged barb to couple the second tail to the lacing tool; and
h) pulling the lacing tool to insert the second tail into the lumen of the fiber.
8. The method of claim 7 , wherein the end of the first tail coupled to the lacing tool is pulled out of the lumen through the first entry point, and the end of the second tail coupled to the lacing tool is pulled out of the lumen through the second entry point, and further comprising retracting the first tail and second tail back into the lumen.
9. The method of claim 1 , wherein the first tail and second tail occupy the entire circumference of the loop's lumen, or substantially so.
10. The implantable continuous loop of claim 1 , wherein the braided fiber is ultra high molecular weight polyethylene.
11. The method of claim 1 , wherein prior to the step of reinforcing a first section, the second tail is inserted into the lumen of the fiber at a second position, so that the first tail and the second tail are both inside the lumen.
12. A method of making a continuous loop fixation assembly comprising:
a) providing an anchor button having two apertures;
b) threading an open fiber having a lumen through the aperture of the button thereby defining first and second sections of the fiber separated by the button, wherein the first fiber section comprises a first tail and the second fiber section comprises a second tail;
c) inserting the first tail within the lumen of the fiber at a first lumen entry point to form a loop;
d) inserting the second tail within the lumen of the fiber at a second lumen entry point;
e) pulling on the second tail until the second lumen entry point moves to the first lumen entry point, so that the first lumen entry point abuts the second position lumen entry point and wherein the first section of the loop includes both the first and second tails within the lumen, and
wherein the first and second tails are retained within the lumen by the reinforcing and said section being reinforced so as to keep said first tail in place within said lumen.
13. The method of claim 12 , wherein the first and second tails overlap within the lumen, and further including the step of stitching the loop in a section of the loop where the first tail and second tails overlap within the lumen thereby stitching the first and second tails within the lumen and thereby securing the tails within the lumen.
14. The method of claim 12 , wherein the abutting lumen entry points are stitched, thereby retaining the tails where they enter the lumen.