Title:
VENTILATION CONTROL APPARATUS, AND BREATHING MASK DEVICE PROVIDED WITH VENTILATION CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/067081
Kind Code:
A1
Abstract:
A ventilation control apparatus, and a breathing mask device provided with the ventilation control apparatus. The ventilation control apparatus comprises: a cavity (210, 310, 410, 510, 610, 710), provided with air delivery ports (212A, 212B, 312A, 312B, 412, 512, 612, 712); a valve assembly (220, 230, 320, 420, 520, 620, 720), arranged at the air delivery ports (212A, 212B, 312A, 312B, 412, 512, 612, 712), the valve assembly (220, 230, 320, 420, 520, 620, 720) being configured to keep the pressure within the cavity (210, 310, 410, 510, 610, 710) greater than the atmospheric pressure during exhalation; a heat and moisture exchanger (240, 440, 540), a mask ventilation port (241, 411, 511) in communication with the air delivery ports (212A, 212B, 312A, 312B, 412, 512, 612, 712) being arranged on the heat and moisture exchanger (240, 440, 540) or the cavity (210, 310, 410, 510, 610, 710), the mask ventilation port (241, 411, 511) being used for ventilation with a breathing mask, the heat and moisture exchanger (240, 440, 540) being in communication with the air delivery ports (212A, 212B, 312A, 312B, 412, 512, 612, 712), so that both exhalation and inhalation occur via the heat and moisture exchanger (240, 440, 540). The ventilation control apparatus implements an exhalation phase positive pressure function, and prevents patient discomfort caused by continuous positive pressure. A positive pressure air supply apparatus and a pipeline etc. need not be connected during use, thereby facilitating patient movement, and the positive pressure air supply apparatus need not be carried when going out. In addition, the ventilation control apparatus is small in size, convenient to carry, and low in cost.
Inventors:
ZHOU MINGZHAO (CN)
MA DEDONG (CN)
WANG YAJIE (CN)
ZHUANG ZHI (CN)
MA DEDONG (CN)
WANG YAJIE (CN)
ZHUANG ZHI (CN)
Application Number:
PCT/CN2015/100041
Publication Date:
April 27, 2017
Filing Date:
December 31, 2015
Export Citation:
Assignee:
BMC MEDICAL CO LTD (CN)
International Classes:
A61M16/06
Foreign References:
| CN105169541A | 2015-12-23 | |||
| CN205127060U | 2016-04-06 | |||
| CN201988011U | 2011-09-28 | |||
| CN1284892A | 2001-02-21 | |||
| CN204293649U | 2015-04-29 | |||
| CN101289135A | 2008-10-22 | |||
| CN101766863A | 2010-07-07 | |||
| US5311862A | 1994-05-17 | |||
| US20040123974A1 | 2004-07-01 |
Attorney, Agent or Firm:
YUHONG INTELLECTUAL PROPERTY LAW FIRM (CN)
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