The utility model discloses a negative pressure drainage device for assisting in liquid drainage and air exhaust in a
human body, and relates to the field of
medical instruments. The medical
nursing bed can be applied to different focus conditions and is wider in application range; meanwhile, when the device is applied to
rectum stoma, colon
stoma and the like, and the second flow
guide tube is not placed into the
stoma for liquid drainage and air exhaust, the comfort level of the patient is higher; when the drainage device is used for drainage of
water sample excrement, the second flow guide
pipe is placed in the
anus to assist in drainage, the excreted excrement can be directly collected in the negative pressure
bottle, and the excrement in the negative pressure
bottle is treated after drainage and exhaust; when
enema is needed to clean the intestinal tract or assist in
defecation, the ostomy bag is tightly attached to the
anus opening, then the first flow guide
pipe extends into the
anus through the through hole, clear water is injected through the
injection device for
enema and cleaning, and then liquid injected into the intestinal tract and excrement are discharged into the negative pressure
bottle through the second flow guide
pipe. And the use is more convenient and faster.