The utility model relates to the field of medical auxiliary equipment, in particular to a relieving device for
plasma collection, which comprises a seat and an air
pipe, an
air pump is mounted in the seat, a controller is mounted on a
handrail of the seat and is in wired connection with the
air pump, a fixing plate is arranged on the seat, a fastening sliding hole is formed in the fixing plate, and the air
pipe is connected with the
air pump. A relieving air bag is slidably connected into the fastening sliding hole, one end of the air
pipe is communicated with the air pump, the other end of the air pipe is communicated with the relieving air bag, and an adjusting
assembly used for moving the fixing plate back and forth is arranged on the seat. By means of the air pump and the air pipe which are used for conveying air to the relieving air bag, a
blood drawing person can adjust the air pressure in the air bag through the controller according to the feeling of the person, so that the appropriate gripping force is achieved, people with different gripping forces can use the relieving air bag to conduct the gripping action, and the applicability of the device is optimized.