| 摘要 |
<p>A surgical cannula comprising a generally hollow inlet portion which can receive a fluid flow and an angled outlet portion connected in fluid communication with said inlet portion, and said outlet portion disposed at an angle of less than 180° with respect to the longitudinal axis of said inlet portion, characterised in that the inlet portion is provided with means to impart a rotational component of flow to fluid before such fluid encounters said angled outlet portion.</p> |
