An integrated multifunctional vertebroplasty instrument, comprising a balloon assembly (1), a curved adjusting assembly (3), and a curved cavity opening assembly (2)； the curved cavity opening assembly (2) comprises an outer tube assembly (21) and a cavity opening liner assembly (22)； the outer tube assembly (21) comprises an outer tube (14) and an outer tube handle (212)； the outer tube handle (212) is provided with a bone filler injection port (2120)； the cavity opening liner assembly (22) comprises an end enclosure (221), a connecting member (222), and a connecting member handle (223)； the maximum outer diameter of the end enclosure (221) is less than or equal to the inner diameter of the outer tube (14)； and the curved adjusting assembly (3) comprises an adjusting handle (32) and an adjusting tube (31). In the other integrated multifunctional vertebroplasty instrument, the distal end of the outer tube is provided with a side hole (2110), the cavity opening liner assembly (22) comprises an end enclosure (221) and a connecting member (222), and the maximum outer diameter of the end enclosure (221) is greater than the inner diameter of the outer tube (14). The two integrated multifunctional vertebroplasty instruments implement the integration of cavity opening, expansion, and bone filler injection, and are easy and flexible to operate, thereby shortening the operation time and reducing the operation risk.L'invention concerne un instrument de vertébroplastie multifonctionnel intégré, comprenant un ensemble ballonnet (1), un ensemble de réglage incurvé (3), et un ensemble d'ouverture de cavité incurvée (2) ； l'ensemble d'ouverture de cavité incurvée (2) comprend un ensemble tube externe (21) et un ensemble de doublure d'ouverture de cavité (22) ； l'ensemble tube externe (21) comprend un tube externe (14) et une poignée de tube externe (212) ； la poignée de tube externe (212) est pourvue d'un orifice d'injection d'agent de remplissage osseux (2120) ； l'ensemble de dou
