The invention relates to the technical field of
medical instruments, in particular to a
uterine cavity tissue
cutting biopsy device which comprises an outer tube, an inner tube, an inner tube pushing and rebounding mechanism and a negative pressure collecting mechanism, the inner tube pushing and rebounding mechanism and the negative pressure collecting mechanism are connected with the inner tube, the outer tube is provided with a
cutting sampling opening, the inner tube is provided with a
cutting head, and the inner tube pushing and rebounding mechanism drives the inner tube to axially move back and forth. The negative pressure sampling device further comprises a rotary rebound mechanism which is nested outside the inner
pipe, and the inner
pipe pushes the rebound mechanism to drive the inner
pipe to axially move back and forth and rotate and rebound at the same time, so that the cutting head is driven to rotate and
cut back and forth. According to the
uterine cavity tissue cutting
biopsy device, an external power source is not needed, heat damage can be thoroughly eliminated, sufficient and effective cutting can be achieved without additional driving force and additional operation during use, the integrity of a
cut sample can be kept as far as possible, and the
uterine cavity tissue cutting
biopsy device has the advantages of being free of heat damage, free of
noise, free of vibration, convenient to operate and capable of avoiding inaccurate
pathological examination.