hypodermic - définition. Qu'est-ce que hypodermic
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Qu'est-ce (qui) est hypodermic - définition

DEVICE TO INJECT SUBSTANCES INTO THE CIRCULATORY SYSTEM
Hypodermic; Hypodermic needles; Needle gauge; Hypodermic injection; Hyperdermic needle; Sharp (science); Injection needle
  • Some Hypodermic needles used by recreational heroin users
  • Hypodermic needle features
  • 2}}″ (1.1 × 40 mm) (cream)
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See also [[Birmingham gauge]].
  • A hypodermic needle tip under microscope
  • Different [[bevel]]s on hypodermic needles
  • Syringe made entirely of glass, similar to the Wood design, except it is etched with volume marks.

Hypodermic         
·adj Of or pertaining to the parts under the skin.
hypodermic         
¦ adjective
1. Medicine relating to the region immediately beneath the skin.
2. (of a needle or syringe) used to inject beneath the skin.
(of a drug) injected beneath the skin.
¦ noun a hypodermic syringe or injection.
Derivatives
hypodermically adverb
Origin
C19: from hypo- + Gk derma 'skin' + -ic.
hypodermic         
(hypodermics)
A hypodermic needle or syringe is a medical instrument with a hollow needle, which is used to give injections.
ADJ: ADJ n
Hypodermic is also a noun.
He held up a hypodermic to check the dosage.
N-COUNT

Wikipédia

Hypodermic needle

A hypodermic needle (from Greek ὑπο- (hypo- = under), and δέρμα (derma = skin)), one of a category of medical tools which enter the skin, called sharps, is a very thin, hollow tube with one sharp tip. It is commonly used with a syringe, a hand-operated device with a plunger, to inject substances into the body (e.g., saline solution, solutions containing various drugs or liquid medicines) or extract fluids from the body (e.g., blood). Large-bore hypodermic intervention is especially useful in catastrophic blood loss or treating shock.

A hypodermic needle is used for rapid delivery of liquids, or when the injected substance cannot be ingested, either because it would not be absorbed (as with insulin), or because it would harm the liver. It is also useful to deliver certain medications that cannot be delivered orally due to vomiting. There are many possible routes for an injection, with intramuscular (into a muscle) and intravenous (into a vein) being the most common. A hypodermic syringe has the ability to retain liquid and blood in it up to years after the last use and a great deal of caution should be taken to use a new syringe every time.

The hypodermic needle also serves an important role in research environments where sterile conditions are required. The hypodermic needle significantly reduces contamination during inoculation of a sterile substrate. The hypodermic needle reduces contamination for two reasons: First, its surface is extremely smooth, which prevents airborne pathogens from becoming trapped between irregularities on the needle's surface, which would subsequently be transferred into the media (e.g. agar) as contaminants; second, the needle's surface is extremely sharp, which significantly reduces the diameter of the hole remaining after puncturing the membrane and consequently prevents microbes larger than this hole from contaminating the substrate.

Exemples du corpus de texte pour hypodermic
1. Close to a dispensary in Al–Shumasiah is a giant hypodermic syringe marking the way to a local health clinic.
2. The CIA turned to the poison pen – a ballpoint containing a tiny, hidden, spring–loaded hypodermic syringe filled with poison.
3. Police charged Ribeiro with unauthorized practice of medicine, drug possession and distribution, and illegal possession of a hypodermic needle.
4. A hypodermic syringe would be inserted into the base to draw out the drink and the bomb mixture would be injected in its place.
5. At University Woods, a city park high above the Harlem River in the Bronx, hypodermic needles, feces and used condoms littered the grounds on a recent day.