Title:
RESPIRATORY MASK FOR GAS FEED FOR MEDICAL TREATMENT
Document Type and Number:
Japanese Patent JP3641151
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable a patient to inspire a constantly stable oxygen concentration by providing a feeding port of gas for medical treatment which has a positive pressure air feeding port for feeding positive pressure air from the upper part of nose in the lengthwise direction of nose and an expired air discharge opening at a position below nose holes, and adding gas for medical treatment toward the nose hole direction in the vicinity of the expired air discharge opening.
SOLUTION: In a nose mask suitable for the intermittent positive pressure ventilating respiration method, a mask cushion 4 is fixed on a mask frame 3, and the mask cushion 4 is applied so as to closely contact the circumference of the nose. A positive pressure air feeding port 9 is provided at the upper part of the mask frame 3, and the positive pressure gas 8 is fed from above to below in lengthwise of nose from this feeding port 9. An expired air discharge opening 6 positions below the nose holes 5 of a user of the mask frame 3, and the expired air discharge flow quantity can easily be changed by plugging the discharge opening 6 when necessary. The feeding port 7 of gas for medical treatment integrally molded with the mask frame 3 is installed near the expired air discharge opening 6 toward the direction of the nose holes of the user.
Inventors:
Chen Atsushi
Shinichi Toge
Ken Imai
Shinichi Toge
Ken Imai
Application Number:
JP2773499A
Publication Date:
April 20, 2005
Filing Date:
February 04, 1999
Export Citation:
Assignee:
Teijin Limited
International Classes:
A61M16/06; A61M16/10; (IPC1-7): A61M16/06; A61M16/10
Domestic Patent References:
| JP2000515784A | ||||
| JP2001511035A | ||||
| JP9010311A |
Foreign References:
| WO1998004310A1 | ||||
| WO1998034665A1 |
Attorney, Agent or Firm:
Hideko Mihara