| 发明名称 |
LOW FRICTION CANNULA SEALS FOR MINIMALLY INVASIVE ROBOTIC SURGERY |
| 摘要 |
Embodiments of a cannula seal are disclosed. In some embodiments, a cannula seal can include a base portion that engages with a cannula; and a seal portion integrally formed with the base portion that slidebly engages with an instrument shaft such that an insertion frictional force between the seal portion and the instrument shaft for insertion of the instrument shaft is symmetrical and substantially equal with a retraction frictional force. |
| 申请公布号 |
US2016220272(A1) |
申请公布日期 |
2016.08.04 |
| 申请号 |
US201615057080 |
申请日期 |
2016.02.29 |
| 申请人 |
Intuitive Surgical Operations, Inc. |
发明人 |
Blumenkranz Stephen J.;Schena Bruce Michael;Goldberg Randall |
| 分类号 |
A61B17/34;A61B34/30 |
主分类号 |
A61B17/34 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A cannula seal, comprising:
a base portion sized and shaped to engage with a cannula; and a seal portion coupled with the base portion, the seal portion including portions defining a proximal seal opening, a distal seal opening, and an internal cavity between the proximal seal opening and the distal seal opening, the proximal seal opening and distal seal opening defining a seal axis extending through the cavity between the proximal opening and the distal opening, the seal portion further including a radially compliant grooved seal surface that is sized and shaped to slidably seal against an outer surface of an instrument shaft. |
| 地址 |
Sunnyvale CA US |
