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.
Type of suture. â¢ Nylon: a non-absorbable suturing material that degrades. in vivo by hydrolysis at a rate of about 125% annually. â¢ The advantages of nylon are good pliability and ease of. handling. â¢ It is favored for interrupted percutaneous suture. closures. â¢ Nylon sutures are available in monofilament and. multifilament construction. Braided nylon sutures. possess the same handling and knot construction. characteristics as silk sutures, but unlike natural fiber, nylon is relatively non-reactive in tissue.