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Oct 22, 2021
What is a spinal needle? How is it different from other needles?
Other than being a bit longer than a typical needle used for injection, a spinal needle has two main features that make it different. First, the angle of the bevel is less acute. T
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Oct 22, 2021
Double hole pencil point needle
One of the criticisms of even the modified Sprotte needle was that the long lateral hole may still straddle the dura, resulting in incomplete block and loss of local anaesthetic so
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Oct 21, 2021
Development of the pencil point needle
37 years after Whitacre developed the pencil point needle, Sprotte published a paper on the improvement of Whitacre needles. The initial problem with the Whitacre needle is still o
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Oct 20, 2021
The second stylet pencil point needle
Even after the introduction of the pencil point needle, the spinal needle still has problems, especially the long bevel needle epidural loss of local anesthetic solution, cored tis
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Oct 19, 2021
Continuous spinal needles have their problems and are technically difficult to use and keep in place. In 1944, Tuohy used a 15G directional spinal needle to insert a nylon ureteral
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Oct 18, 2021
Continuous spinal anaesthesia needles
Although most people are trying to improve the design of spinal needles to reduce the incidence of complications, some workers are looking for ways to improve spinal anesthesia tec
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Oct 17, 2021
The original Whitacre needle has its problems, that is, the orifice is small, suction and injection are difficult, and the stylet does not block the orifice, so it may be blocked b
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Oct 17, 2021
Once the suggestion that dura fibers are unlikely to be damaged by non-cutting needle points is published, it is only a matter of time before the emergence of completely non-cuttin
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Oct 16, 2021
Since the acceptance of spinal anesthesia needles into modern anesthesia practice, many minor modifications to the incision bevel have been described, but there are still major pro
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Oct 15, 2021
In the 1920s, people realized that cutting the dural fibers would increase the leakage of cerebrospinal fluid, leading to an increase in the incidence of PDPH, which led to the nex
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Oct 14, 2021
Development of the cutting spinal needle tip (5)
In 1922, Hoyt published his theory that the commonly used large-caliber needles, due to their rigidity, led to an increase in the loss of large holes in the dura mater and cerebros
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Oct 13, 2021
Development of the cutting spinal needle tip (4)
Gaston Labat is a highly respected French clinician who later moved to the United States. He was one of the pioneers in the widespread acceptance of spinal anesthesia in Europe and