The invention discloses a testing method of a subcutaneous implantable
drug delivery device, and relates to the technical field of
medical testing. The method comprises the following steps that a to-be-tested subcutaneous implantable
drug delivery device is placed in liquid simulating the subcutaneous environment, an infusion outlet of the to-be-tested subcutaneous implantable
drug delivery device is connected with a
back pressure simulation system, and the
back pressure simulation system is used for forming controllable and dynamically-changeable
back pressure at the infusion outlet. By introducing the controllable dynamic back pressure and the bionic liquid environment, the test condition for highly simulating the
subcutaneous tissue is constructed, the defect of idealization of the test environment in the prior art is effectively overcome, and the obtained infusion performance data and the clinical actual performance have higher correlation degree. By monitoring the output quantity and the
internal pressure in real time and combining with an intelligent fault diagnosis model, quantitative evaluation of the flow precision and stability of the device is realized, the device has fault early warning and life prediction capabilities, the test
automation level is remarkably improved, and accurate data support is provided for
product optimization and
quality control.