Wound expansion device

The utility model discloses a wound expansion device, and relates to the technical field of medical instruments, the wound expansion device comprises two bases, and the upper side arms of the bases are connected with pressing plates through first limiting mechanisms; the upper portion of the base is connected with two first guide rods, the outer sides of the two first guide rods are slidably connected with a first shell, and the top ends of the two first guide rods are connected with a top plate. Two second guide rods are connected to the outer side of the first shell, a second shell is slidably connected to the outer sides of the two second guide rods, two expansion plates are connected to the interior of the second shell through a driving mechanism, and under the cooperation effect of the first guide rods and the first shell, the expansion plates are connected to the interior of the second shell; the height of the first shells on the two sides can be conveniently adjusted to the height of the wound of the p