Series instrument characteristics and treatment principle: SW-3501 type male sexual recovery therapeutic apparatus is modern digital electronic technology by meridian theory with Chinese traditional medicine with the combination of the intervention, no new high-tech medical instrument trauma, the operation is simple to use convenient, to impose users in vitro treatment; Their remarkable curative effect, safe painless, without any side effects, do not produce the dependence, belong to science reliable high-tech physical therapy. It has attracted negative pressure, the electric frequency stimulation, pneumatic massage, water move massage and bubble massage, dipping (medicine ion import) and so on many physical therapy. * advanced doppler system accuracy can check the penis arterial blood, PBI (systolic blood pressure penis/upper arm index), PFI (blood flow to the penis index), and other indicators to measure accurately