ENERGY ACCUMULATING AUTOMATIC NEGATIVE PRESSURE DRAINAGE DEVICE

• Main Authors: CHANG ZHANLI, GAO CHONGXIN
• Format: Patent
• Language: English
• Published: 05.05.1993
• Edition: 5
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The utility model belongs to an adjunct medical device, which solves the problems of the bad effect of an open type drainage, the difficult operation of the patent negative pressure drainage and an invisible negative pressure. The utility model comprises a bottle with an elastic folding surface, an exhaust opening with a conical piston, at least the one joint of a drainage pipe, the graduation and the pointer of a drainage liquid gathering amount on a bottle body, and the indication graduation of the deformation amount of the bottle body. The bottle body is compressed by hands to block the conical piston after axially compressed and deformed. The utility model can stably drain by a negative pressure thereof. The utility model has the advantages of simple structure, good operation, visible negative pressure amount and visible drainage liquid amount.