Display and alarm device of transfusion system

• Main Authors: CHEN XIAOJING, GAO CHONG, BIAN XIAOYUAN, DUAN ZHANGLI, CHEN SHOUQIANG
• Format: Patent
• Language: Chinese; English
• Published: 10.08.2011
• 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 provides a display and alarm device of a transfusion system, which comprises a catheter, and a transfusion needle, an admission pipe and a Murphy's dropper which are communicated by the catheter. The display and alarm device also comprises an air sac with a needle head. A plurality of non-toxic red suspension granules are held in the air sac; the radii of the suspension granules are far less than the radius of the catheter but are greater than the inner diameter of a needle tube of the transfusion needle; moreover, the density of the suspension granules is lower than that of water; and the catheter is also provided with a liquid level detection alarm device. The utility model has the advantages that the position of a liquid medicine is easy to observe; the suspension granules can drop along with the drop of the liquid level of the liquid medicine but cannot enter the catheter; if people pay no attention to that the liquid level of the liquid medicine drops to the lowest point of a transfusio