Resistance of aluminum foil to chemical attacks depends upon the specific compound or agent, but it has excellent and good compatibility with most products. Even some of the compounds classified as only fair in this respect are frequently packaged in coated or film-laminated foils.
Straight-bladed Mayo scissors are designed for cutting body tissues near the surface of a wound. As straight-bladed Mayo scissors are also used for cutting sutures, they are also referred to as suture scissors. Curved-bladed Mayo scissors allow deeper penetration into the wound than the type with straight blades. The curved style of Mayo scissor is used to cut thick tissues such as those found in the uterus, muscles, breast, and foot. Mayo scissors used for dissection are placed in tissue with the tips closed.
Consequently, you should never use taper needles to suture skin. The reverse cutting needle is similar to a conventional cutting needle, except that the cutting edge faces down instead of up. This may decrease the likelihood of sutures pulling through tissue in some cases.