After a long
absence, we're back!@ Chromic Catgut in a cassette! Hurray!
dispensing cassettes are easy to work with.
quality suture does not have knots and other imperfections which are commonly
found in other low cost catgut sutures!
Absorbable sutures are made of materials which are broken
down in tissue after a given period of time, which depending on the material can
be from ten days to eight weeks. They are used therefore in many of the internal
tissues of the body. In most cases, three weeks is sufficient for the wound to
close firmly. The suture is not needed any more, and the fact that it disappears
is an advantage, as there is no foreign material left inside the body and no
need for the patient to have the sutures removed.
Absorbable sutures were
originally made of the intestines of sheep, the so called catgut. The
manufacturing process was similar to that of natural musical strings for violins
and guitar, and also of natural strings for tennis racquets. The inventor, a
10th century surgeon named al-Zahrawi reportedly discovered the dissolving
nature of catgut when his lute's strings were eaten by a monkey. Today, gut
sutures are made of specially prepared beef and sheep intestine, and may be
untreated (plain gut), tanned with chromium salts to increase their persistence
in the body (chromic gut), or heat-treated to give more rapid absorption (fast
gut). However, the major part of the absorbable sutures used are now made of
synthetic polymer fibers, which may be braided or monofilament; these offer
numerous advantages over gut sutures, notably ease of handling, low cost, low
tissue reaction, consistent performance and guaranteed non-toxicity. In Europe
and Japan, gut sutures have been banned due to concerns over bovine spongiform
encephalopathy (mad-cow disease), although the herds from which gut is harvested
are certified BSE-free. Each major suture manufacturer has its own proprietary
formulations for its brands of synthetic absorbable sutures; various blends of
polyglycolic acid (Vicryl for example), lactic acid or caprolactone are common.