Thrombus preventive indwelling needle not blocking needle tubing
The invention discloses a thrombus preventive indwelling needle not blocking a needle tubing. The indwelling needle comprises a three way needle stand, an indwelling hose arranged in the front end ofthe three way needle stand and a puncture needle penetrating into the indwelling hose from the three...
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Format: | Patent |
Sprache: | chi ; eng |
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