Secondary Waves Defined. Secondary waves, or S-waves, are seismic waves produced by an earthquake. As one side of a fault slips past the other, the pressure that had been stored is released and travels radially away from the focus of the earthquake.
Non-Absorbable sutures include :- Polypropylene sutures, Nylon (poylamide), Polyester, PVDF, silk and stainless steel sutures. Monofilament and Multifilament Sutures. Sutures can also be divided into two types on the basis of material structure i.e. monofilament sutures and multifilament or braided sutures. Braided sutures provide better knot security whereas monofilament sutures provide better passage through tissues.
Examples of absorbable suture include Monocryl, Vicryl, Chromic, and PDS. The amount of time it takes a suture to break down in the body depends on a few factors such as suture type, size and the location it is placed.on-Braided or Monofilament Sutures have a single strand such as Monocryl, PDS,and Ethilon Nylon. Often times it will be surgeon preference when choosing a braided or non-braided suture. 4-0 vicryl and 4-0 monocryl are by far the most common sutures used from sewing the skin.