Disclosed herein is an improved in vivo circular clamping device. The improved in vivo circular clamping device includes at least one circular body having a first opening, in which the circular body is suitable for holding the fracture bone in place and is made of bio-absorbable materials.本揭示內容提供一種於組織內固定骨折部位的體內環狀固定裝置,包括至少一環型本體,係由生物可吸收材料所製成並具有一第一開口,用來套入並固定骨折部位。100‧‧‧體內環狀固定裝置102‧‧‧第一環型本體122‧‧‧第一開口