公开(公告)号：US20210369990A1

公开(公告)日：2021-12-02

申请号：US16759739

申请日：2018-11-05

Applicant: MICROBASE TECHNOLOGY CORP.

Inventor： CHIU-JU SHEN ,  PO CHUAN CHEN ,  JO LING WU

IPC: A61M15/00 ,  A61M11/00

Abstract: A fluid delivery apparatus comprises a first piston body, a second piston body, a fluid delivery pipe, and a sealing element. The first piston body has a first through hole, a first connecting portion, an accommodation space and a buffer space. The second piston body has a second through hole and a second connecting portion disposed inside the accommodation space. The fluid delivery pipe is accommodated in the first through hole and the second through hole, and movable between a first position and a second position. The sealing element encircles the fluid delivery pipe. When the fluid delivery pipe is at the first position, the sealing element is accommodated in the accommodation space. When the fluid delivery pipe is at the second position, a first part of the sealing element is accommodated in the accommodation space, and a second part of the sealing element is accommodated in the buffer space.

公开(公告)号：US20210322685A1

公开(公告)日：2021-10-21

申请号：US17258753

申请日：2019-11-08

Applicant: MICROBASE TECHNOLOGY CORP.

Inventor： CHIH-CHIEH LIN ,  CHIU-JU SHEN ,  YI-TING LIN ,  JO-LING WU

IPC: A61M15/00

Abstract: A locking mechanism for an aerosol drug delivery device includes a first housing, a second housing, a screw and a fastening member. The first housing has a contact portion and a fastening space formed beside the contact portion. The second housing is rotatably connected with the first housing and is capable of rotating relative to the first housing along a rotation axis. The screw is rotatably connected with the second housing and is capable of rotating relative to the second housing along a central axis parallel to the rotation axis. The fastening member is movably connected with the screw and capable of being driven by the screw to move toward the contact portion. The fastening member includes a fastening portion capable of being displaced when contacting with the contact portion and entering into the fastening space to limit the relative rotation between the first housing and the second housing.