| 摘要 |
The invention relates to a sampling needle (632), in particular to a needle suitable for oocyte retrieval from a human or animal subject, said needle comprising a first tubular region (634) in fluid communication with a second tubular region (636), the first tubular region comprising a leading end (638) for insertion into a subject and the second tubular region comprising a trailing end (640) for fluid communication with a means for receiving a fluid, in which the first tubular region has an outer diameter which is less than the outer diameter of the second tubular region and the first tubular region has an inner diameter which is less than the inner diameter of the second tubular region. The invention also relates to a method of retrieving a sample, in particular an oocyte, from a human or animal subject. |
