Title:
【発明の名称】最大呼気流量を測定するための換気器具
Document Type and Number:
Japanese Patent JP3012322
Kind Code:
B2
Abstract:
PCT No. PCT/EP91/00124 Sec. 371 Date Jul. 30, 1992 Sec. 102(e) Date Jul. 30, 1992 PCT Filed Jan. 21, 1991 PCT Pub. No. WO91/11140 PCT Pub. Date Aug. 8, 1991.A peak flow meter has a flexible resilient vane which is rigidly mounted by one end and which has its other end engaged with a slider indicator which slides in a slot formed in a curved wall of the casing. In use, the human subject blows into the casing through a mouthpiece. The vane is bent by the expiration which vents through the part of the slot between the slider and the mouthpiece. The slider stops at the furthest point from the mouthpiece to which it is moved by the vane and that point is an indication of the peak expiratory flow of the human subject.
Inventors:
Stockwell James Alfred
Checksfield Ronald Frederick
Checksfield Ronald Frederick
Application Number:
JP50245791A
Publication Date:
February 21, 2000
Filing Date:
January 21, 1991
Export Citation:
Assignee:
Ferraris Development and Engineering Company Limited
International Classes:
A61B5/08; A61B5/087; G01F1/28; (IPC1-7): A61B5/08; G01F1/28
Domestic Patent References:
| JP4921168A | ||||
| JP4911365A |
Other References:
【文献】国際公開84/2642(WO,A1)
Attorney, Agent or Firm:
Akira Asamura (3 outside)