The invention relates to the field of
medical instruments, in particular to a urinary
surgery calculus removing device capable of protecting mucosa, which comprises a sheathing canal, a calculus sleeving basket main body is in sliding fit in the sheathing canal, the calculus sleeving basket main body comprises a front end buffer
assembly and a telescopic rod, the telescopic rod is connected with a steel wire fixing seat, and the steel wire fixing seat is connected with a central
control rod. The central
control rod is provided with an operating
handle, and the telescopic rod is provided with a sheathing canal constraint linkage
assembly and an isolating membrane
assembly; the front end buffering assembly comprises a spherical head and a memory
alloy buffering spring, and a spring containing cavity is formed in the spherical head; the isolating membrane assembly comprises an annular sliding rail, an isolating membrane and a memory
alloy supporting ring, and when the stone sleeving basket body slides and stretches out along the sheathing canal, the sheathing canal constraint linkage assembly synchronously relieves linear constraint on the front end buffering assembly and folding constraint on the isolating membrane assembly, so that the front end buffering assembly and the isolating membrane are synchronously triggered to be unfolded. The device is used in the urinary
surgery basket calculus removing operation, and the
urinary system mucosa is effectively protected against damage.