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Scissors cut material by applying at the cutting location a local shear stress which exceeds the material's shear strength. Some scissors have an appendage, called a finger brace or finger tang, below the index finger hole for the middle finger to rest on to provide for better control and more power in precision cutting.
There are two main mechanical types of scissors used in surgery: Ring scissors, which look and function much like standard utility scissors with ring finger loops; Spring forceps are small scissors used mostly in eye surgery or microsurgery. The handles end in flat springs connected with a pivot joint.
The finger loops are usually grasped by the thumb and middle or (more often) ring finger, while the index finger is placed on the pivot to help stabilize and guide the instrument. The most common locking mechanism is a handle ratchet , which consists of an asymmetrically serrated short protrusion near the finger loop of one of the handles, and ...
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 ...
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Enter: anal fingering, which involves using a finger (or two or five) to penetrate, thrust into, or apply pressure to the anus for the sake of pleasure. According to certified sex educator Alicia ...