| 发明名称 |
SURGICAL INSTRUMENTS HAVING IMPROVED WEAR RESISTANCE, AND METHODS OF MAKING THE SAME |
| 摘要 |
A surgical apparatus includes a cannula and a surgical instrument. The cannula includes a curved longitudinal axis along at least a portion of its length. The surgical instrument includes an elongated shaft having a distal end and a proximal end, and an end effector coupled to the distal end of the elongated shaft. At least a portion of the end effector is configured to contact an inner surface of the cannula during insertion of the surgical instrument into the curved cannula. A threshold galling stress between the portion of the end effector and an inner surface of the curved cannula is at least 10,000 pounds per square inch. |
| 申请公布号 |
US2014194895(A1) |
申请公布日期 |
2014.07.10 |
| 申请号 |
US201414149535 |
申请日期 |
2014.01.07 |
| 申请人 |
INTUITIVE SURGICAL OPERATIONS, INC. |
发明人 |
CREWS Samuel T.;CREWS Andrew;DONLON Edward P.;GERBI Craig;GONG Kenneth L.;KRISHNANAND Krish;LEE Peling;ROGERS Theodore W.;STEGER John Ryan;SWINEHART Charles E. |
| 分类号 |
A61B19/00;A61B17/34 |
主分类号 |
A61B19/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A surgical apparatus, comprising:
a cannula including a curved longitudinal axis along at least a portion of its length; and a surgical instrument having an elongated shaft having a distal end and a proximal end, and an end effector coupled to the distal end of the elongated shaft, wherein at least a portion of the end effector is configured to contact an inner surface of the cannula during insertion of the surgical instrument into the curved cannula; wherein a threshold galling stress between the portion of the end effector and an inner surface of the curved cannula is at least 10,000 pounds per square inch. |
| 地址 |
Sunnyvale CA US |
