US Patent Issued to Coloplast on July 21 for "Penile prosthesis pump having a deflate valve assembly including a grooved valve stem disposed in a sleeve" (Minnesota Inventor)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,685,638, issued on July 21, was assigned to Coloplast A/S (Humlebaek, Denmark).

"Penile prosthesis pump having a deflate valve assembly including a grooved valve stem disposed in a sleeve" was invented by Donald Wolf (Shoreview, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pump for an implantable penile prosthesis has a pump body attachable between a penile implant and a reservoir containing a liquid. A deflate valve assembly is placed within the pump body and has a sleeve sealed inside of the pump body and a stem that is movable longitudinally within the sleeve. A groove is formed in an exterior surface of the stem. The stem is longitudinally...