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Hypodermic needles are normally made from a stainless-steel or Niobium tube [17] through a process known as tube drawing where the tube is drawn through progressively smaller dies to make the needle. The end of the needle is bevelled to create a sharp pointed tip, letting the needle easily penetrate the skin. [18]
A nasogastric tube is used for feeding and administering drugs and other oral agents such as activated charcoal. For drugs and for minimal quantities of liquid, a syringe is used for injection into the tube. For continuous feeding, a gravity based system is employed, with the solution placed higher than the patient's stomach.
Percutaneous endoscopic gastrostomy (PEG) is an endoscopic medical procedure in which a tube (PEG tube) is passed into a patient's stomach through the abdominal wall, most commonly to provide a means of feeding when oral intake is not adequate (for example, because of dysphagia or sedation).
to create a permanent pathway to a vein (or artery) for the purpose of repeated injections or infusion of intravenous fluids: Catheter: to drain and collect urine directly from the bladder (primary use) also to act as a makeshift oxygen tube etc. Crocodile forceps: to remove foreign bodies from ear or nasal cavities. Electrocardiograph machine
Autoinjector, a device to ease injection, e.g. by the patient or other untrained personnel. Hippy Sippy; Jet injector, injects without a needle, by squirting the injection fluid so fast that it makes a hole in the skin. Luer taper, a standardized fitting system used for making leak-free connections between syringe tips and needles.
In aesthetic medicine, a blunt-tip cannula or microcannula (also called smooth tip microcannula, blunt tipped cannula, or simply microcannula) is a small tube with an edge that is not sharp and an extrusion port or pore near the tip which is designed for atraumatic subdermal injections of fluids or gels.
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This is used to cause an artificial venous stasis by applying pressure through this rubber tube. This leads to engorgement of the veins, allowing them to be seen more easily. Used for intravenous injections and cannulation. Microscope: used for visualising minute structures, including microbes: Bunsen burner or spirit lamps or candles: source ...