ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,702,758, issued on Aug. 11, was assigned to SHL Medical AG (Zug, Switzerland).

"Torsion spring mechanism for medicament delivery device, and medicament delivery device comprising said mechanism" was invented by Joakim Lindholm (Saltsjo-Boo, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mechanism having a base structure; a plunger rod movable along a longitudinal axis; a driver rotatable about the longitudinal axis and engaging the plunger rod; a torsion spring connected to the driver and to the base structure, the torsion spring being arranged to rotationally drive the driver; and at least one support part arranged to support the torsion sprin...