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Needles designed to penetrate the body and infuse anesthetics in the proximity of the nerves in which conductivity is to be cut off. These devices typically consist of thin-wall needles with appropriately beveled tips to minimize cutting and/or lesion of tissues and nerves; some needles have blunt tips to deflect rather than transfix neural structures. Local-block needles are used either for short-term procedures that require a regional block or for continuous regional blocks. These needles are usually attached to catheters.
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