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Types of epidural needles include: [3] The Crawford Needle; The Tuohy Needle; The Hustead Needle; The Weiss Needle; The Sprotte Spezial Needle; Other Epidural Needles : Other less popular types are the Wagner needle (1957), the Cheng needle(1958), the Crawley needle (1968), the Foldes needle (1973), and the Bell needle (1975)—all variants of the Huber design with a blunted tip of varying ...
The sizes were gradually standardized as described above. [3] Modern Chinese typography uses the following names in general preference to stating the number of points. In ambiguous contexts, the word hào (t 號, s 号, lit. "number") is added to the end of the size name to clarify the meaning.
The French scale measures the outer diameter of the catheter, not the size of the internal drainage channel (inner diameter). For instance, a two-way catheter of 20 Fr and a three-way catheter of 20 Fr have the same outer diameter, but the three-way catheter has an additional channel for irrigation, reducing the size of its drainage channel.
Drypoint is a printmaking technique of the intaglio family, in which an image is incised into a plate (or "matrix") with a hard-pointed "needle" of sharp metal or diamond point. In principle, the method is practically identical to engraving .
Heinrich Irenaeus Quincke (26 August 1842 – 19 May 1922) was a German internist and surgeon. His main contribution to internal medicine was the introduction of the lumbar puncture for diagnostic and therapeutic purposes.
The phrase in both instances refers to the number of stitches per inch rather than the size of the finished article of clothing. The gauge is calculated by counting the stitches (for hand knitting) or needles (on a knitting machine bed) across a number of inches, then dividing by the sample's width in inches.
The modern aiguillette derives from the laces used to secure plates of armor together. The breast- and back-plates would be attached on one side with short loops of cord acting as a hinge, and on the other by a longer and more ornate tied one, to support the arm defences. [4]
W. Avery & Son was a needle manufacturer during the Victorian Era from Headless Cross, a small village on the southwest side of Redditch, England. Redditch is located 15 miles south of Birmingham, the English city recognized as the centre of the Industrial Revolution. In the 19th century, the Redditch area produced the majority of the world's needles. W. Avery & Son is best known for their ...