1 results about "Tympanic cavity" patented technology

The utility model relates to the technical field of medical equipment, in particular to a tympanic membrane ventilation pipe. The device is suitable for tympanic membrane catheterization. The tympanic membrane ventilation pipe comprises an inner claw, a pipe body and an outer claw, the pipe body is a hollow pipe, the two ends of the pipe body are fixedly connected with one end of the inner claw and one end of the outer claw respectively, and the other ends of the inner claw and the outer claw are free ends; the free end is made of memory alloy, is in a straightened state at the temperature of 0 DEG C and is in a bent state at the temperature of 20-40 DEG C. The structure is newly innovated, and an existing traditional indwelling catheter structure is changed. And the free ends of the inner claw and the outer claw are bent in a normal-temperature state through the memory alloy. The bending state of the inner claw and the outer claw achieves multi-point and internal and external bidirectional fixation, the bending state of the inner claw and the outer claw increases the supporting area and the supporting firmness, multi-point firm fixation of the eardrum in the ear is ensured, internal and external bidirectional fixation is achieved through bidirectional fixation of the inner claw and the outer claw, and the risk that the eardrum falls out of the auditory meatus and falls into the tympanic chamber is thoroughly solved.