MEDICAL INFLATION/DEFLATION DRIVE DEVICE

Title:

MEDICAL INFLATION/DEFLATION DRIVE DEVICE

Document Type and Number:

WIPO Patent Application WO/2011/114779

Kind Code:

A1

Abstract:

A medical inflation/deflation drive device comprises: pressure generation means (11, 12, 40) which, in order to repeat the inflation and deflation of a driven device (22), alternately applies positive pressure and negative pressure to a piping system (18) communicating with the driven device (22); a gas tank (71) which, according to the difference between the pressure in the piping system (18) and the pressure in the gas tank (71), sucks a part of gas within the piping system (18) or discharges a part of the gas within the gas tank (71) to the piping system (18); a valve means (72) for selectively opening and closing the connection between the gas tank (71) and the piping system (18); and a control means for controlling the valve means (72) in such a manner that the valve means (72) is opened after a predetermined period of time after the time point at which the application of the pressure by the pressure generation means (11, 12, 40) is switched from the application of the positive pressure or the negative pressure to the application of the negative pressure or the positive pressure, and that the valve means (72) is closed before the next switching.

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Inventors:

KUROKI HIDEHIRO (JP)
HASHIOKA SHINGI (JP)
ASANO JUNICHI (JP)

Application Number:

PCT/JP2011/051688

Publication Date:

September 22, 2011

Filing Date:

January 28, 2011

Export Citation:

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Assignee:

ZEON CORP (JP)
KUROKI HIDEHIRO (JP)
HASHIOKA SHINGI (JP)
ASANO JUNICHI (JP)

International Classes:

A61M25/10; A61M60/13; A61M60/139; A61M60/295; A61M60/497; A61M60/531; A61M60/843

Foreign References:

JP2005000374A	2005-01-06
JP2006212443A	2006-08-17
JPH09262214A	1997-10-07
JP3767008B2	2006-04-19
JP2003504160A	2003-02-04
JP2004174003A	2004-06-24
US5913814A	1999-06-22
JPS4714993A
JPH02131770A	1990-05-21
JPH07308376A	1995-11-28
JP3767008B2	2006-04-19
JP3804092B2	2006-08-02
JPH0510952A	1993-01-19

Attorney, Agent or Firm:

FUJIMOTO YOSHIHIRO (JP)
Yoshihiro Fujimoto (JP)

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Claims:

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