Ingredient blood sampling pressure exertion device and ingredient blood sampling device

The invention provides an ingredient blood sampling pressure exertion device. The ingredient blood sampling pressure exertion device is connected with an ingredient blood sampling device, and the pressure is applied to the upper arm of a patient through the ingredient blood sampling pressure exertion device when the ingredient blood sampling device gives an alarm that the blood flow is insufficient. The ingredient blood sampling pressure exertion device is characterized by comprising a signal communication unit, a control part, a pressure applying unit and a switching unit, wherein the signal communication unit is connected with a blood sampling device and receiving and transmitting an alarm signal; the control part is connected with the signal communication unit, transmits command information related to the pressure and the applying duration time according to the alarm signal received by the signal communication unit; the pressure applying unit receives the command information and applies the pressure to the upper arm according to the command information; and the switching unit is connected with the control part and the pressure applying part, and is used for starting or closing the control part and the pressure applying part. By means of the ingredient blood sampling pressure exertion device, the pressure can be automatically applied to the upper arm of the patient, the utilized manpower is reduced, and the working efficiency is improved.