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发明授权
CN102188275B 流体喷射装置 有权

流体喷射装置
摘要：
本发明提供一种具有喷射管和抽吸管的流体喷射装置。流体喷射装置(1)具有：脉动流产生部(20)，其将流体转换成脉动流；抽吸管(80)，其突出设置于脉动流产生部；喷射管(70)，其以外周面与抽吸管的内周面接触的方式偏心地内插于抽吸管中，并具有与脉动流产生部连通的喷射开口部(72)；以及抽吸流路(81)和抽吸开口部(82)，所述抽吸流路和抽吸开口部形成于抽吸管的内周面与喷射管(70)的外周面之间，喷射管(70)在喷射开口部(72)附近固定于抽吸管内周面。由此，能够通过增大抽吸流路(81)和抽吸开口部(82)来提高切除组织的抽吸能力，并能够抑制喷射管的前端部(喷射开口部(72))振动。
摘要（英）：

A fluid injection device includes: a pulse generator which converts fluid into pulse flow; a suction pipe projecting from the pulse generator; an injection pipe which is eccentrically inserted into the suction pipe such that the outer circumferential surface of the injection pipe contacts the inner circumferential surface of the suction pipe, and has an injection opening communicating with the pulse generator; and a suction channel and a suction opening formed between the inner circumferential surface of the suction pipe and the outer circumferential surface of the injection pipe, wherein the injection pipe is fixed to the inner circumferential surface of the suction pipe in the vicinity of the injection opening.

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