公开(公告)号：WO1995000187A1

公开(公告)日：1995-01-05

申请号：PCT/US1994005436

申请日：1994-05-16

Applicant: DATASCOPE INVESTMENT CORP.

Inventor： DATASCOPE INVESTMENT CORP. ,  BOUTELLE, James, Eric ,  CARROLL, Kevin, Michael ,  WILLIAMS, Jonathan, Richard

IPC: A61M01/12

CPC classification number: A61M1/1062 ,  A61M1/106 ,  A61M1/1065 ,  A61M1/107 ,  A61M1/1072 ,  A61M1/125 ,  A61M2205/42 ,  F04B39/0061 ,  F04B45/043

Abstract: A pneumatic compressor (10) supplies both positive and negative pressure for operating a medical device (300). The pulsing sounds generated by the compressor are attenuated by connecting the inlet (224) of the positive pressure side (34) of the compressor and the outlet (124) of the negative pressure side (32) of the compressor to a common resonating chamber (30). A port (400) in the resonating chamber acts as an outlet for the discharge of excess air in the chamber and an inlet for the entry of make-up air. By adjusting the diameter of the port with respect to the volume of the resonating chamber, sound attenuation can be optimized. In a compact design, the compressor housing serves as the resonating chamber.

Abstract translation: 气动压缩机（10）提供用于操作医疗装置（300）的正压和负压。 通过将压缩机的正压侧（34）的入口（224）与压缩机的负压侧（32）的出口（124）连接到公共谐振室（图5）将压缩机产生的脉冲声音衰减 30）。 谐振室中的端口（400）用作排出室中的过量空气的出口和用于进入补充空气的入口。 通过相对于谐振室的体积调整端口的直径，可以优化声音衰减。 在紧凑的设计中，压缩机壳体用作谐振室。