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Syringe on left, hypodermic needle with attached colour coded Luer-Lock connector on right Hypodermic needle features. A hypodermic needle (from Greek ὑπο- (hypo-= under), and δέρμα (derma = skin)) is a very thin, hollow tube with one sharp tip. It is one of a category of medical tools which enter the skin, called sharps. [1]
Measuring 3 cm (1.18 in) long and 5 mm (0.2 in) in diameter, his syringe was entirely in silver, [2] made by Établissements Charrière, and operated by a screw (rather than the plunger familiar today) to control the amount of substance injected. The Scottish doctor Alexander Wood invented the syringe as used today - also in 1853. Wood's device ...
Magnetized needles and compasses were first described in medieval Europe by the English theologian Alexander Neckam (1157–1217 AD). The first literary description of a compass in Western Europe was recorded in around 1190 and in the Islamic world 1232. [ 5 ]
Before 1974, the reconstruction and development loans the World Bank made were relatively small. Its staff was aware of the need to instill confidence in the bank. Fiscal conservatism ruled, and loan applications had to meet strict criteria. [13]: 56–60 The first country to receive a World Bank loan was France in 1947.
Through many millennia, various suture materials were used or proposed. Needles were made of bone or metals such as silver, copper, and aluminium bronze wire. Sutures were made of plant materials (flax, hemp and cotton) or animal material (hair, tendons, arteries, muscle strips and nerves, silk, and catgut). [citation needed]
1897: Surgical masks made of cloth were developed in Europe by physicians Jan Mikulicz-Radecki at the University of Breslau and Paul Berger in Paris, as a result of increasing awareness of germ theory and the importance of antiseptic procedures in medicine. [452] 1898: Hans von Pechmann synthesizes polyethylene, now the most common plastic in ...
The Western Medical Tradition: 800 BC to AD 1800 (1995); excerpt and text search. Bynum, W.F. et al. The Western Medical Tradition: 1800–2000 (2006) excerpt and text search; Loudon, Irvine, ed. Western Medicine: An Illustrated History (1997) online Archived 26 September 2017 at the Wayback Machine; McGrew, Roderick. Encyclopedia of Medical ...
For safety and comfort concerns, the tools are made with as few pieces as possible. [3] Hand surgery emerged as a specialty during World War II, and the tools used by early hand surgeons remain in common use today, and many are identified by the names of those who created them. [4] Individual tools have diverse history development.