The utility model relates to the technical field of
medical instruments, in particular to a wound infected
tissue sampling device which comprises an inner cylinder, a
screw cap is fixedly arranged at the top of the inner cylinder, rotatable outer cylinders are arranged on the outer side of the inner cylinder at intervals, a through hole is formed in the
screw cap in a penetrating mode, and a supporting connecting rod capable of moving up and down is arranged in the through hole in a penetrating mode. The lower end of the supporting connecting rod is fixedly connected with a
cutting tool bit of a conical structure. According to the utility model, the
cutting tool bit can be driven to move up and down through the arranged knob and the supporting connecting rod, so that the sampling depth can be accurately controlled, the dependence on the proficiency and experience of an operator is reduced, the sampling accuracy is improved, unnecessary wounds are reduced, point-to-surface
cutting sampling is realized through the
cutting tool bit, and the sampling efficiency is improved. The device is simple in structure and convenient to use, can
cut into the hardened
skin surface, reduces the pressure of an operator, avoids aggravating the pain of a patient, is more suitable for different parts and different types of
skin by adopting a
girdling mode, and improves the sampling convenience.