Posture requirements | No restrictions on positions | Special techniques and positions | Special techniques and positions |
Patient requirements | No position required, awake, coma, easy to tolerate | side-lying, sitting position, not easy to tolerate Prone | side-lying, sitting position, not easy to tolerate Prone |
The operator | The operation is simple, no special training is required, the machine automatically expects sputum, and the expectoration effect is not affected by individual differences of operators, has a wide range of indications, and the equipment is maintenance-free and low in cost. | Requires professionalism, patience, love, the operator is prone to fatigue, affected by mood, physical strength, etc., the treatment effect can be reduced due to individual differences in the operator, and sometimes the family members expect to expectoration-the effect is even worse. | Professionalism is required, the operator is prone to fatigue, and the treatment effect can be reduced due to individual differences in the operator. Long-term operation is prone to arm paralysis, long-term occupation of labor, and low work efficiency. |