| 摘要 |
One embodiment of the present invention includes a surgical instrument(20, 60) including an instrument body including a shaft (22,24,63,65) having a distal end, a proximal end and a length therebetween; and a bushing (67,167,267,367) having a length, wherein at least a portion of the length of the bushing includes a spring portion (69a-e,169,369) including a resilient member, wherein the bushing is cannulated such that the shaft of the instrument is positioned therethrough. |
