在一段很长的时间内，通过特别设计微型渗透泵以及颅骨上很小的钻孔将药物直接注入肿瘤内。
Drugs were infused directly into the tumors over an extended period of time, using specially-designed miniature osmotic pumps and a very small burr hole in the skull.
其成功的关键是，选择适当的钻孔点和注入的深度及血肿量，此外掌握好注入的速度也很重要。
The keys of success were that the site for drilling, the depth and volume of injecting blood should be properly selected; in addition, the speed of injection was also important.
小儿头皮静脉针与钻孔匹配，注入液体从另一引流孔顺利引流。
Needle match with pinhole, liquid injected was irrigated from another pinhole successfully.
应用推荐