ALEXANDRIA, Va., June 16 -- United States Patent no. 12,653,703, issued on June 16.

"Implantable device for treatment of hydrocephalus" was invented by Francis A. Kralick (Wellington, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An implantable device for the treatment of hydrocephalus using a stent having a peripheral wall and an interior passageway and wherein a plurality of microneedles project outwardly from the peripheral and each needle includes a microneedle passageway from an aperture adjacent a distal end of the microneedle to a proximal end of the microneedle adjacent the peripheral wall. A corresponding plurality of one-way microvalves is positioned at the proximal ends of the microneedle an...