| 发明名称 | Stepped cannula | ||
| 摘要 | Described herein are cannulas having a stepped exterior. Also described are methods of making and using these cannulas, for example to deliver one or more materials to the central nervous system of an animal. | ||
| 申请公布号 | US9302070(B2) | 申请公布日期 | 2016.04.05 |
| 申请号 | US201213679762 | 申请日期 | 2012.11.16 |
| 申请人 | Genzyme Corporation;The Regents of the University of California | 发明人 | Bankiewicz Krystof;Sommer Jurg M. |
| 分类号 | A61M5/31;A61M25/00;A61B17/34;A61M5/142;A61M5/158;A61M5/00;A61B19/00 | 主分类号 | A61M5/31 |
| 代理机构 | Robins Law Group | 代理人 | Robins Roberta L.;Robins Law Group |
| 主权项 | 1. A stepped cannula configured for delivering one or more materials to the brain of a subject, wherein the cannula has an exterior diameter, a distal end, a proximal end and a lumen extending between the proximal and distal ends, the stepped cannula comprising one or more tubular components extending through the lumen of the cannula, two or more co-axially disposed segments, each segment having an exterior diameter that defines the exterior diameter of the cannula, wherein the exterior diameter of the segments is different, and further wherein a surface of the cannula which comes into contact with the material to be delivered is composed of fused silica. | ||
| 地址 | Cambridge MA US | ||