#$%^&*AU2019101633A420200123.pdf#####ABSTRACT The present invention provides a pneumatic blood drawing device comprising a cuff, wherein the said pneumatic blood drawing device further comprises a control member, an inflating member mounted to the said control member, a deflating member and a time control member, an air passage is mounted between an air outlet portion of the said inflating member and the said cuff, the said deflating member is mounted to the said air outlet portion of the said inflating member, the said inflating member is adapted for inflating the said cuff by allowing the air to pass through the said air passage to the said cuff according to the preset pressure value inside the said cuff, the said time control member is adapted for measuring a preset time period of blood collection, the said control member is adapted for releasing the air inside the said cuff by deactivating the said inflating member and activating the said deflating member when the preset time period for blood collection has been reached, the said pneumatic blood drawing device further comprises an alarm member mounted to the said control member adapted for raising alarm for the remaining time period for blood collection, the said alarm member is a buzzer and/or a warning light, and the said buzzer is used to emit sounds of different frequencies to warn the remaining time period for blood collection. The warning light is adapted to emit various lights to alert the remaining time period for blood collection.10 15 14 .82 24 23 19 11 16 161 20 21 22 162 Fig. 2
