| 摘要 |
<p>This butterfly needle (12) includes a needle body (16) and a wing member (18). The wing member (18) has a shaft (28) attached to the needle body (16), and a pair of elastically deformable wings (30a, 30b) extending in mutually opposite directions from the shaft (28). The base-side end (36) of each of the pair of wings (30a, 30b) is inclined so as to come closer to the shaft (28) towards the base direction. The wings (30a, 30b) have an outer wing part (31), a thin part (32), and a step part (34, 34a) therebetween. The step part (34) is inclined relative to the axis of the shaft (28) so as to come closer to the outer end of the wing (30a, 30b) towards the tip direction.</p> |
