The goal of this clinical trial is to prove the benefit of intrapulmonary percussive ventilator in healthy volunteers. The main questions are: * How can intrapulmonary percussive improve lung function？ * What is the subjective feeling through intrapulmonary percussive? Participants will be undergoing treatment of intrapulmonary percussive. Then they will be assessed for lung function and EIT before and after intrapulmonary percussive.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
SUPPORTIVE_CARE
Masking
NONE
Enrollment
20
The volunteers will undergo three minutes low frequency and high frequency intrapulmonary percussive treatments.
Shanghai Tenth People's Hospital
Shanghai, China
Pulmonary function test
This test can assess the volunteer's lung ventilation and diffusion function.For example the max vital capacity (VCMAX),Forced vital capacity(FVC),Forced expiratory volume in one second(FEV1),functional residual capacity(FRC-SB),diffusion capacity of lung for carbon monoxide(DLCO) and so on.
Time frame: through study completion, an average one hour
Electrical Impedance Tomography of Pulmonary(EIT)
EIT is a relatively advanced non-invasive monitoring technique for the lung function. This technology uses a strap attached to the chest to monitor electrical at 16 locations. The Ventilation in each area resistance of the lung is quantified according to the electrical resistance
Time frame: through study completion, an average one hour
The safety and comfort
Whether the technique has adverse reactions. How do the volunteers feel? We used a scale of 1 to 4 to show how the volunteers felt. 1 is the worst feeling. The volunteers were no longer willing to undergo the treatment. 4 means the volunteers felt better and breathed easier after the treatment. Be willing to undergo endoairway shock therapy again.
Time frame: The treatment was scored once after the participants completed both low and high frequency intrapulmonary percussive.Up to one week.
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