【発明の名称】ピストン式の通気装置

Title:

【発明の名称】ピストン式の通気装置

Document Type and Number:

Japanese Patent JP2512669

Kind Code:

B2

Abstract:

Improvements in piston-based ventilator design and operation are described. In one aspect, individual compensation of force dissipation within the gas delivery system is effected, so that the desired gas pressure is delivered to the patient airway without the necessity for monitoring the actual pressure and using it as feedback. In another aspect, a piston (14) is dimensioned slightly less than the chamber wall (12) of the pump to define a gap (18) through which an acceptable amount of gas may leak but which eliminates the need for a physical seal, thereby minimizing the frictional resistance within the pump.

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Inventors:

YOONESU MAGUDEII

Application Number:

JP50389593A

Publication Date:

July 03, 1996

Filing Date:

August 07, 1992

Export Citation:

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Assignee:

YUNIBAASHITEI OBU MANITOBA

International Classes:

A61M16/00; C23C18/14; C23C18/08; H05K3/10; (IPC1-7): A61M16/00; A61M16/00

Other References:

【文献】米国特許4617637(US,A)
【文献】欧州特許283141(EP,A)

Attorney, Agent or Firm:

Wakabayashi Tadashi

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