公开(公告)号：US20250057727A1

公开(公告)日：2025-02-20

申请号：US18725922

申请日：2022-09-26

Applicant: Paolo Gobbi Frattini s.r.l.

Inventor： Dario CASPANI ,  Paolo Giuseppe GOBBI FRATTINI

IPC: A61J1/20

Abstract: A pressure compensation device (1) for an apparatus for the reconstitution, withdrawal and transfer of a drug from a vial or other vacuum container with a hermetic closure plug being pierceable by axial pressure comprises a three-dimensional compensation bag (2) with distinct flexible walls (3) and internal space (4) containing sterile air, which is interposed between a device (5) for hooking and piercing the closure plug of the vial (16) and a terminal connector (6) with an hermetic closure valve being openable by axial pressure applied with the luer (25) of a needless syringe (27) or with other extraction means and automatically hermetically reclosable upon ceasing pressure. The hooking and piercing device (5) comprises a hooking and retaining cowling (7), a piercing stem (11) with axial internal passage (49), and a sealing element (12).