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Indwelling intravenous needle with two blood-backflow passage routes
Indwelling intravenous needle with two blood-backflow passage routes
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机译:留有两种血液回流通道的静脉留置针
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摘要
An indwelling intravenous needle having two blood backflow passage routes. One is an internal cavity of a metallic internal needle, which is the basic construction of an indwelling intravenous needle of a conventional type. The other is being a groove provided on the surface of the internal needle extending from the proximal cutting-edge to the internal-needle base is disclosed. By visually observing blood backflows in these two passage routes separately, the indwelling intravenous needle can be pierced into the vein accurately, quickly and safely.
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