| CPC A61B 18/1492 (2013.01) [A61B 2018/0022 (2013.01); A61B 2018/00267 (2013.01); A61B 2018/00404 (2013.01); A61B 2018/00434 (2013.01); A61B 2018/00773 (2013.01); A61B 2018/00839 (2013.01); A61B 2018/0212 (2013.01); A61B 18/1815 (2013.01); A61M 2205/051 (2013.01); A61M 2205/058 (2013.01)] | 20 Claims |

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1. A medical system, comprising:
a microsurgical tool dimensioned for insertion into a lumen with a wall, the lumen being in fluid communication with a target region of a subject, wherein the target region comprises at least one of one or more nerves and one or more lymphatic ducts coupled to at least one of a tumor and a metastatic cell within a body of the subject, the microsurgical tool comprising:
a distal tip configured to interface with the wall of the lumen, the distal tip comprising (i) one or more delivery means configured to apply a block to the target region and (ii) one or more microfingers equipped with a plurality of sensing points, the distal tip having one or more dimensions configured to facilitate placement into the lumen; and
a controller configured:
to deploy the one or more microfingers such that at least a subset of the plurality of sensing points interface with the wall of the lumen;
to retract the one or more microfingers such that at least the subset of the plurality of sensing points drag along the wall of the lumen;
to map electrophysiological information along the wall of the lumen based at least in part on signals recorded by the subset of the plurality of sensing points while the one or more microfingers are retracted; and
to control operation of the one or more delivery means based at least in part on the mapped electrophysiological information.
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