Abstract: A hybrid lidar-radar system for detecting the presence of objects, such as cancerous tumors, within tissues by detecting reflected signals from the tissue and discriminating the information related to the cancerous tumor from the undesirable backscattering of light created by the tissue itself. The hybrid lidar-radar system utilizes continuous wave light that is preferably modulated at frequencies up to 60 GHz. The present invention filters the return signals from the tissue at a subcarrier modulation frequency so as to reject erroneous information contained in scattered lights, while at the same time retaining the coherent, unscattered and modulated light information so as to provide for an accuracy detection of tumors within tissues.

Abstract: A portable apparatus cleaning a conduit including a housing, a filter and a pump. The filter is attached to the conduit to be cleaned and an aqueous solution reservoir, and is storable within the housing. The pump is attached to the aqueous solution reservoir, and to the conduit to be cleaned, and is storable within the housing. A method for cleaning a conduit, which includes connecting a power supply to a pump, connecting an aqueous solution reservoir to the pump, connecting a conduit to be cleaned to the pump, connecting the conduit to be cleaned to a filter, connecting the filter to the aqueous solution reservoir, running the pump for a specified period of time, disconnecting the aqueous solution reservoir from the pump and filter, connecting the pump and filter to a container of distilled water, and running the pump for at least one cycle.