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Metzenbaum scissors are surgical scissors designed for cutting delicate tissue and blunt dissection. The scissors come in variable lengths and have a relatively high shank-to-blade ratio. They are constructed of stainless steel and may have tungsten carbide cutting surface inserts. The blades can be curved or straight, and the tips are usually ...
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.
The Poncelet wheel is a type of waterwheel invented by Jean-Victor Poncelet while working at the École d'Application in Metz. It roughly doubled the efficiency of existing undershot waterwheels through a series of detail improvements. The first Poncelet wheel was constructed in 1838, and the design quickly became common in France.
Surgical scissors are scissors specially manufactured as surgical instruments, typically used for cutting sutures, dressings, and cutting and dissecting biological tissue. [ 1 ] [ 2 ] Surgical scissors are usually made of surgical steel.
In southern and southeastern Europe, towards the end of the 20th century, instead of the "scissor-grinder bicycles" of the Arrotini, partly converted motor scooters or mopeds came into use, and ultimately also three-wheeled panel vans through to vans and small trucks, in which one or more grinding wheels – mounted on the motorcycle or in the ...
A pair of tenotomy scissors. Tenotomy scissors are surgical scissors used to perform delicate surgery. They can be straight or curved, and blunt or sharp, depending upon necessity. This equipment can be used in many surgical specialties, in particular delicate operations in ophthalmic surgery, oral and maxillofacial surgery, or in neurosurgery ...
These were of the 'spring scissor' type comprising two bronze blades connected at the handles by a thin, flexible strip of curved bronze which served to hold the blades in alignment, to allow them to be squeezed together, and to pull them apart when released. [5] Spring scissors continued to be used in Europe until the 16th century.
The most common uses a wheel that rotates in a circle while a person moves the cutter in a direction that they would like to cut the pizza. [2] People can also use the wheel pizza cutter for things such as craft work. Mezzaluna with a single blade. The other type is a large curved knife called a mezzaluna, which is rocked back and forth to cut ...