Unclear. Possibly named after dentist Charles Stent. The English surname is a variant of Stein.
Meanings
A slender tube inserted into a blood vessel, a ureter or the oesophagus in order to provide support and to prevent disease-induced closure.
Tiny metal sleeves placed in arteries to keep blood flowing, stents have become such a popular quick fix for clogged coronary vessels that Americans will receive more than 1.5 million of them this year. 2006 October 21, Barnaby J. Feder, “Doctors Rethink Widespread Use of Heart Stents”, in The New York Times:
The hundred-and-oneth stitch was my stent, and it's done. I'm not ever going to take the hundred and twoth. I've decided. 1905, Annie Hamilton Donnell, “The Hundred and Oneth”, in Rebecca Marry, Reprint edition (Fiction), Project Gutenberg, published 2009:
(archaic) To keep within limits; to restrain; to cause to stop, or cease; to stint.
Yet n'ould she stent / Her bitter railing and foule revilement. 1590, Edmund Spenser, “Book II, Canto IV”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC, stanza 11: