摘要 |
The present invention relates to an expandable swab, and more specifically, to an expandable swab in which a cotton portion can be expanded to correspond to the hole of the ear by external pressure. For this, the present invention includes a rod which is formed in a hollow tube shape of a predetermined distance and has a pressing unit on the center thereof, and a hollow end unit which is provided on the end of the rod, a pad unit which covers the end unit. |
申请人 |
CHANGWON NATIONAL UNIVERSITY INDUSTRY ACADEMY COOPERATION CORPS |
发明人 |
SONG, JUNG IL;KIM, JIN WOO;KIM, CHANG UK;JUN, MIN SEUNG;PARK, HYE SEON |