| 摘要 |
A cannula with a top section and tubular cylinder or sleeve designed to resist outward slippage during surgical manipulations, including but not limited to surgical manipulations of the eye. Means attached to the top section or the tubular cylinder or sleeve securely holds or fastens the cannula in place. Secure attaching is provided by threads, bladders, or expansile elements on the tubular cylinder or sleeve, or pincers extending from the top section, or combinations thereof. |
