| 摘要 |
A method of pressure regulation and a ventilator are provided. The ventilato r (200) includes a positive relative pressure gas supply (204), a negative relative pressure gas supply (206), and a diverter valve (211). The diverter valve (211) includes a positive pressure port (303) connected to the positiv e relative pressure gas supply (204), a negative pressure port (305) connected to the negative relative pressure gas supply (206), and a gas supply port (309) communicating with a gas delivery device (220, 222). The ventilator (200) preferably further includes a feedback sensor (229) that detects a gas supply difference between a gas supply and a predetermined gas supply and generates a feedback signal that is substantially related to the gas supply difference. The ventilator (200) preferably further includes a diverter valv e actuator (212) communicating with the diverter valve (211) and operating the diverter valve (211) to communicate the positive relative pressure gas suppl y (204) and the negative relative pressure gas (206) supply to the gas supply port (309) of the diverter valve (211) based upon the feedback signal.</SDOA B> |
