１、 What is hemorrhoids?Hemorrhoids is the most common anorectal disease. According to a survey conducted in 19...

(revised on 12 may 2013)Since 2003, the patent product of Sun Yat sen University automatic hemorrhoid ligation...

1、 Continuous hemorrhoid ligation device (first generation) (double line traction)——Model: zdfr-tzq-01 (single...