Colored suture construction
A colored suture includes an elongate woven braid of filaments including one or more ends made of an ultra high molecular weight polyethylene (UHMWPE). The suture also includes second and third ends which can be colorable or dyeable before or after incorporation into the elongate woven braid. This invention provides surgeons with improved recognition of suture ends in surgery by construction of a bi-colored co-braid with at least two ends of different color schemes or patterns braided into a UHMWPE construction. One of the colored ends runs continuously from one end of the suture to the other end. The other colored end can be colored only on one half of the end. This provides a suture with two distinguishable ends, while still maintaining a continuous line of color along the length of the suture.
1. A suture comprising;
an elongate woven braid of fibers comprising:
one or more first ends comprising ultra-high molecular weight polyethylene;
at least one second end comprising a colorable material wherein the second end is a single continuous color; and
at least one third end comprising a dyeable material wherein only a portion of the third end is dyed a continuous color and the color of the second end, the color of the dyed portion third end are distinguished from each other.
2. The suture of claim 1 , wherein the at least one second end comprises one or more of polypropylene monofilament, nylon, polyethylene, or polyester.
3. The suture of claim 1 , wherein the at least one third end comprises one of nylon or polyester.
4. The suture of claim 1 , wherein the braid includes a first color pattern on a first portion of the braid and a second color pattern different from the first color pattern on a second portion of the braid.
5. The suture of claim 1 , wherein one half of a length of the elongate woven braid is dipped into a dye bath to color the at least one third end.
6. The suture of claim 1 , wherein the elongate woven braid is dipped into a dye bath to color the third end and to etch or shadow the first ends comprising the ultra-high molecular weight polyethylene.
7. The suture of claim 1 , wherein a dye used to color the at least one second end is a mordant dye.
8. The suture of claim 1 , wherein the dye used to color the at least one third end is one of an acid, vat, or a solvent dye.
9. A suture comprising:
an elongate woven braid of fibers comprising:
one or more first ends comprising ultra-high molecular weight polyethylene;
at least one second end comprising a colorable material wherein the second end is a single continuous color; and
at least one third end comprising a dyeable material wherein only a portion of the third end is dyed a continuous color,
wherein a junction line between the first portion of the at least one third end and a second portion of the third end is distinct due to an application of an anti-wicking compound during a step in formation of the suture.