Double-balloon vertebral body dilating catheter CN 203634628 U
The utility model relates to a double-balloon vertebral body dilating catheter which comprises a balloon assembly, a cannula assembly and a handle assembly. The cannula assembly comprises an outer tube, a support tube and two liquid injection channels, the outer tube is externally arranged on the outside of the support tube, the two liquid injection channels are arranged in a zone between the outer tube and the support tube, a support wire is inserted in the support tube, and two liquid outlet holes which are communicated with two liquid injection tubes in a one-to-one correspondence manner are formed in the outer tube; the balloon assembly comprises two balloons,