| CPC A61B 1/01 (2013.01) [A61B 1/00094 (2013.01); A61B 1/0051 (2013.01); A61B 1/015 (2013.01); A61B 1/05 (2013.01); A61B 1/0676 (2013.01); A61B 17/24 (2013.01); A61B 17/3415 (2013.01); A61B 17/3417 (2013.01); A61M 29/02 (2013.01); A61B 1/0008 (2013.01); A61B 2017/00296 (2013.01); A61B 2017/003 (2013.01); A61B 2017/3445 (2013.01); A61B 2217/005 (2013.01); A61B 2217/007 (2013.01); A61M 2029/025 (2013.01)] | 13 Claims |

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1. A surgical instrument, comprising:
a guide shaft extending along a central axis, the guide shaft including: (i) a guide sidewall surrounding the central axis, (ii) a guide lumen defined by the guide sidewall, and (iii) a clearance opening radially extending through the guide sidewall in communication with the guide lumen;
a first surgical tool at least partially positioned within the guide lumen, the first surgical tool including a distal head; and
a dilation catheter slidably positioned within the guide lumen, the dilation catheter including an enlarged portion, the enlarged portion of the dilation catheter being configured to urge the distal head of the first surgical tool from a first position toward a second position, and the distal head, in the second position, being obliquely oriented relative to the central axis.
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