Pre-filled cotton swab with drainage thread

• Main Authors: CHEN PING, QU SHAOHONG, DONG PEIFANG, QIAO DANNI, CHEN HUILIAN, LU SHUIHUA
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2023
• 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 liquid pre-filling cotton swab comprises a cotton swab rod and a cotton swab head, an inner cavity is formed in the cotton swab rod, an isolation piece of a rigid structure is arranged in the inner cavity, the isolation piece divides the inner cavity into a sealed cavity and an open cavity, the sealed cavity is filled with liquid medicine, a plurality of permeation holes are formed in the side wall of the open cavity, the permeation holes are wrapped by the cotton swab head, and the cotton swab head is arranged in the sealed cavity. The isolation piece comprises a rigid ring connected in the inner cavity in a sealed and sliding mode and an isolation piece portion sealing film sealing the rigid ring, a needle head used for puncturing the isolation piece portion sealing film is arranged in the open cavity, a breaking guide ring groove extending in the circumferential direction of the cotton swab rod is formed in the side wall of the sealing cavity, and cotton yarn extending into the open cavity through the