** Painchek PCK.AX soars as much as 16.7% to A$0.056, highest since October 10, 2023
** Stock marks biggest intraday pct gain since February 18
** Medical technology firm announces partnership with U.S.-based Eldermark Software
** Partnership to help expand PCK's market reach in the U.S. long-term care sector
** No financial details have been disclosed
** Around 3.3 mln shares traded, more than 2x 30-day avg
** PCK gains 65.5% YTD
(Reporting by Shruti Agarwal in Bengaluru)
((Shruti.Agarwal@thomsonreuters.com))