公开(公告)号：US20230355870A1

公开(公告)日：2023-11-09

申请号：US18352617

申请日：2023-07-14

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinichiro MATSUMOTO ,  Atsushi MATSUMOTO

IPC: A61M5/155 ,  F04B43/04

CPC classification number: A61M5/155 ,  F04B43/046

Abstract: A pressure device includes a bag-shaped compression bag, a cover member installed at a first surface portion of the compression bag, an accommodating space defined by the cover member and the compression bag, a piezoelectric pump that flows air into the compression bag, and a casing that accommodates the piezoelectric pump. The compression bag has a bag opening formed at a second surface portion different from the first surface portion and connecting an internal space of the compression bag and an outside to each other. The casing has a casing opening. The casing (31) is fixed to the second surface portion of the compression bag while being in contact with the second surface portion to directly connect the bag opening and the casing opening to each other in an overlapping manner.